FANUC Certified Robot Operator (FCR-O1) — Questions and Answers

Question 1: In FANUC iRVision, what is a 'Locate Tool' and what does it output?

A software tool that generates robot paths based on CAD geometry
A physical end-effector used to probe part surfaces for calibration
A diagnostic tool that measures camera lens distortion
A vision process that finds a part's position and returns offset data for use in robot programs (Correct answer)

Correct answer: A vision process that finds a part's position and returns offset data for use in robot programs

A Locate Tool is an iRVision vision process that identifies a taught part model in a camera image and outputs position and orientation offset data that the robot program uses to adjust its pick position.

Question 2: After installing a FANUC robot axis servo amplifier replacement, the technician should verify the amplifier's axis assignment by checking:

The motor nameplate current rating matches the old amplifier
The amplifier's DIP switch or parameter setting that assigns it to the correct axis number (Correct answer)
The color of the amplifier status LED
The part number printed on the amplifier faceplate only

Correct answer: The amplifier's DIP switch or parameter setting that assigns it to the correct axis number

FANUC servo amplifiers use DIP switches or software parameters to define which axis they control; an incorrect assignment will cause the wrong joint to respond, requiring verification before powering up.

Question 3: Which foundational principle is MOST important for success in Fuji Automatic Numerical Control Robotics Certification?

Commitment to continuous learning, ethical practice, and quality outcomes (Correct answer)
Maintaining minimum certification requirements
Specializing in only one narrow area
Maximizing financial returns

Correct answer: Commitment to continuous learning, ethical practice, and quality outcomes

Success requires continuous learning, ethical practice, and focus on quality outcomes.

Question 4: Which statement BEST describes the relationship between Fuji Automatic Numerical Control Robotics Certification certification and industry evolution?

Certification requirements never change
Requirements become less stringent over time
Requirements evolve periodically to reflect advances in knowledge and practice (Correct answer)
Changes only occur when government mandates them

Correct answer: Requirements evolve periodically to reflect advances in knowledge and practice

Certification requirements evolve to keep pace with professional and technological advances.

Question 5: What role does an HMI play in robotics?

It cleans the robot
It powers the robot
User interface for controlling robots (Correct answer)
It is a software bug

Correct answer: User interface for controlling robots

An HMI (Human-Machine Interface) serves as the user interface that allows operators to interact with and control robotic systems. It typically includes screens, buttons, and other input devices that display information about the robot's status, allow for program selection, and enable manual control. HMIs are crucial for monitoring operations, troubleshooting, and ensuring safe and efficient robot use.

Question 6: What is the importance of the spindle in CNC machines?

Lubricates machine
Stores power
Holds and spins cutting tool (Correct answer)
Controls software

Correct answer: Holds and spins cutting tool

The spindle is a critical component in CNC machines because it holds and rapidly spins the cutting tool. Its rotation provides the necessary speed and power for the tool to effectively cut, drill, or mill materials. The spindle's precision and rigidity directly impact the quality and accuracy of the machining process.

Question 7: Which FANUC system variable should a technician check to verify the remaining battery voltage for SRAM memory backup?

$SCR.$BATT_ALM_LVL
$MOR_CFG.$BATTERY
$BATT_VOLT (Correct answer)
$PARAM_SVOLTA

Correct answer: $BATT_VOLT

$BATT_VOLT stores the current measured voltage of the controller's SRAM backup battery, allowing technicians to confirm battery health without external measurement.

Question 8: Why is software integration testing important?

To increase software size
To verify software modules integration (Correct answer)
To make software slower
To avoid software updates

Correct answer: To verify software modules integration

Software integration testing is a crucial phase in development where individual software modules are combined and tested as a group. Its purpose is to verify that these modules interact correctly and seamlessly with each other. This helps uncover interface defects, data flow issues, and other problems that might arise when different parts of the system are brought together, ensuring overall system functionality.

Question 9: A safety light curtain is classified as which type of safeguard under ANSI/RIA R15.06?

Enabling device
Two-hand control device
Presence-sensing device (PSD) (Correct answer)
Fixed guard

Correct answer: Presence-sensing device (PSD)

Light curtains are electro-sensitive protective equipment (ESPE) classified as presence-sensing devices (PSDs) that detect intrusion into the safeguarded space.

Question 10: What is the primary advantage of using Position Registers (PR) over taught positions (P[]) in a FANUC TP program?

Position Registers can be calculated and modified at runtime, enabling flexible and adaptive motions (Correct answer)
Position Registers eliminate the need for tool frame calibration
Position Registers support higher accuracy because they use floating-point math
Position Registers execute motion instructions faster due to hardware acceleration

Correct answer: Position Registers can be calculated and modified at runtime, enabling flexible and adaptive motions

Position Registers can be written to and computed during program execution (e.g., via arithmetic or vision offsets), making them ideal for dynamic and adaptive applications unlike fixed taught points.

Question 11: A FANUC controller's Group Output (GO) signal is used to:

Trigger an emergency stop sequence
Send a binary-encoded integer value to a PLC or peripheral device (Correct answer)
Control individual relay outputs one at a time
Read analog sensor voltage levels

Correct answer: Send a binary-encoded integer value to a PLC or peripheral device

Group Outputs (GO) in FANUC combine multiple digital output bits to transmit a binary-encoded integer value to an external device like a PLC.

Question 12: When replacing a FANUC pulse coder (encoder), which step must be performed immediately after installation?

Replace the servo amplifier fuse
Reset all I/O assignments
Perform a mastering (zero-point calibration) procedure (Correct answer)
Update the robot firmware

Correct answer: Perform a mastering (zero-point calibration) procedure

A new pulse coder loses the stored zero-point data, so mastering must be performed to re-establish the robot's reference position.

Question 13: What does the term 'axis' refer to in CNC robots?

Types of tools
Program code lines
Directions of movement (Correct answer)
Robot brand

Correct answer: Directions of movement

In CNC robots, the term 'axis' refers to the directions of movement the robot can perform. Common axes include X (left-right), Y (forward-backward), and Z (up-down), but more complex robots can have additional rotational axes (A, B, C). Each axis represents a degree of freedom, allowing the robot to position its tool precisely in three-dimensional space to perform machining operations.

Question 14: In FANUC Karel, which built-in routine is used to send a string message to the teach pendant's user display area?

POST_ERR
UI_SET_MENU
WRITE_TP
WRITE (using the TP device) (Correct answer)

Correct answer: WRITE (using the TP device)

In Karel, output to the teach pendant's user display is achieved by opening and writing to the 'TP:' device using the standard WRITE statement directed to the TP file descriptor.

Question 15: What does the FANUC Servo Disconnect function allow an integrator to do?

Disable the teach pendant display
Reset all servo amplifier faults simultaneously
Remove servo power from specific axes while keeping the controller active (Correct answer)
Switch the robot to a different motion group

Correct answer: Remove servo power from specific axes while keeping the controller active

Servo Disconnect allows individual axes or groups to be powered down for maintenance or tool changes while the controller remains powered and other axes stay enabled.

Question 16: In FANUC arc welding, what is the purpose of the 'Weave' instruction in the TP program?

To switch between MIG and TIG welding modes
To oscillate the welding torch laterally across the joint to improve fusion on wide or beveled weld joints (Correct answer)
To pause the weld at each waypoint for inspection
To reset the wire feeder speed at the start of each pass

Correct answer: To oscillate the welding torch laterally across the joint to improve fusion on wide or beveled weld joints

The Weave instruction causes the torch to oscillate side-to-side along the weld path, distributing heat and filler metal across wider joint gaps for better fusion and fill.

Question 17: Which FANUC feature allows a robot program to be automatically selected and started by an external PLC signal?

Scheduled Task Execution
Remote Start Interlock
Program Select (RSR or PNS) (Correct answer)
Auto Mode Override

Correct answer: Program Select (RSR or PNS)

RSR (Robot Service Request) and PNS (Program Number Select) allow external devices to select and start TP programs via I/O.

Question 18: What is the PRIMARY purpose of obtaining FANUC certification in Fuji Automatic Numerical Control Robotics Certification?

To guarantee employment
To demonstrate verified competency and adherence to professional standards (Correct answer)
To bypass educational requirements
To satisfy a personal achievement goal

Correct answer: To demonstrate verified competency and adherence to professional standards

Certification demonstrates verified competency and adherence to professional standards.

Question 19: When conducting a risk assessment for FANUC operations, which factor should receive the HIGHEST priority?

Time required for safety training
Cost of implementing safety measures
Probability and severity of potential harm (Correct answer)
Convenience for daily operations

Correct answer: Probability and severity of potential harm

The probability and severity of potential harm are the primary factors in risk assessment.

Question 20: Alarm SRVO-047 (HVAL Alarm) appears on a FANUC robot. What does this indicate?

Hard stop contact on a limit switch
Hardware velocity exceeded the axis speed limit (Correct answer)
High voltage detected in the servo amplifier DC bus
High ambient temperature in the controller cabinet

Correct answer: Hardware velocity exceeded the axis speed limit

SRVO-047 HVAL (Hardware Velocity Alarm) triggers when an axis velocity exceeds the maximum hardware speed limit, often caused by runaway servo or loose encoder coupling.

Question 21: What distinguishes a Fuji Automatic Numerical Control Robotics Certification certified professional from a non-certified practitioner?

Certified professionals only work in larger organizations
Certification validates competency through standardized assessment against benchmarks (Correct answer)
There is no meaningful difference
Certified professionals always have more experience

Correct answer: Certification validates competency through standardized assessment against benchmarks

Certification provides objective validation of competency through standardized assessment.

Question 22: What is G-code used for?

Controlling lighting
Managing inventory
Programming CNC machines (Correct answer)
Quality control

Correct answer: Programming CNC machines

G-code is a specialized programming language used to instruct CNC machines on how to perform specific tasks. It consists of alphanumeric commands that dictate movements, speeds, tool changes, and other operations. Programmers use G-code to define the precise path and actions a CNC robot will take to manufacture a part.

Question 23: What is the MOST effective way for new FANUC professionals to build competency?

Studying certification materials exclusively
Combining formal education, mentored practice, and ongoing professional development (Correct answer)
Focusing solely on advanced topics
Learning through trial and error

Correct answer: Combining formal education, mentored practice, and ongoing professional development

Building competency requires formal education, mentored practice, and ongoing development.

Question 24: What is the FANUC macro instruction $SHELL_CMD used for in advanced programming?

Launching a background vision process
Creating a shortcut key on the teach pendant
Defining a custom G-code macro for a connected CNC machine
Executing operating system shell commands from within a Karel program (Correct answer)

Correct answer: Executing operating system shell commands from within a Karel program

$SHELL_CMD allows Karel programs to invoke system-level OS commands on the robot controller.

Question 25: In Fuji Automatic Numerical Control Robotics Certification practice, what is the FIRST step when a safety hazard is identified in the workplace?

Wait for a supervisor to notice the issue
Continue working and report at end of shift
Document it for the next safety audit
Immediately secure the area and report the hazard (Correct answer)

Correct answer: Immediately secure the area and report the hazard

When a safety hazard is identified, the immediate priority is to secure the area to prevent injury and report the hazard through proper channels.

Question 26: Which statement BEST describes the relationship between Fuji Automatic Numerical Control Robotics Certification certification and industry evolution?

Requirements evolve periodically to reflect advances in knowledge and practice (Correct answer)
Changes only occur when government mandates them
Requirements become less stringent over time
Certification requirements never change

Correct answer: Requirements evolve periodically to reflect advances in knowledge and practice

Certification requirements evolve to keep pace with professional and technological advances.

Question 27: In FANUC arc welding applications, what does the 'Arc Start Retry' function do?

Attempts to re-ignite the welding arc a set number of times before faulting (Correct answer)
Switches to a backup wire feeder on arc loss
Reverses the robot to the previous waypoint on arc failure
Repeats the entire weld path from the beginning if the arc fails

Correct answer: Attempts to re-ignite the welding arc a set number of times before faulting

Arc Start Retry re-attempts arc ignition up to a configured maximum count before triggering an alarm.

Question 28: What is the purpose of the FANUC DCS (Dual Check Safety) function?

To provide hardware-level position and speed monitoring independent of the main CPU (Correct answer)
To synchronize two robots in a shared workspace
To duplicate CNC G-code across two controllers
To back up the robot program to a secondary drive

Correct answer: To provide hardware-level position and speed monitoring independent of the main CPU

DCS monitors joint positions and speeds on a dedicated safety CPU, triggering a stop if limits are violated.

Question 29: A FANUC robot joint fails to move and displays SRVO-006 (Hand Broken). In a typical configuration, what triggers this alarm?

The joint temperature sensor detected overheating
The payload setting exceeds rated capacity
An end-of-arm tooling overload signal or broken-tool detection I/O input is active (Correct answer)
The teach pendant is in HOLD state

Correct answer: An end-of-arm tooling overload signal or broken-tool detection I/O input is active

SRVO-006 is triggered by an active signal on the configured hand-broken detection I/O input, which is typically wired to a tool crash sensor or pneumatic pressure switch.

Question 30: Which statement BEST describes the relationship between Fuji Automatic Numerical Control Robotics Certification certification and industry evolution?

Changes only occur when government mandates them
Certification requirements never change
Requirements become less stringent over time
Requirements evolve periodically to reflect advances in knowledge and practice (Correct answer)

Correct answer: Requirements evolve periodically to reflect advances in knowledge and practice

Certification requirements evolve to keep pace with professional and technological advances.

Question 31: In a FANUC CNC robot cell, the Programmable Machine Controller (PMC) ladder logic is used to:

Store TP program waypoints and positions
Manage servo amplifier gain tuning parameters
Configure the teach pendant display layout
Control I/O interlocks, sequence logic, and interface between the CNC and external machine signals (Correct answer)

Correct answer: Control I/O interlocks, sequence logic, and interface between the CNC and external machine signals

The PMC executes ladder logic to manage I/O sequencing, safety interlocks, and communication handshaking between the robot CNC controller and peripheral machine equipment.

Question 32: How are tool offsets used in CNC operation?

To compensate tool length (Correct answer)
To change power supply
To control robot arm
To speed up machining

Correct answer: To compensate tool length

Tool offsets in CNC operation are used to compensate for variations in tool length and diameter. This allows the machine to maintain precise cutting depths and positions even when different tools are used or when a tool wears down. By applying offsets, operators can ensure consistent part dimensions without having to reprogram the entire job for each tool change.

Question 33: What standard regulates robotic safety requirements?

ISO 9001
IEEE 802.11
ISO 10218 (Correct answer)
OSHA 18000

Correct answer: ISO 10218

ISO 10218 is the international standard specifically developed to regulate the safety requirements for industrial robots and robotic systems. Adhering to this standard ensures that robots are designed, installed, and operated in a manner that minimizes risks to personnel and complies with global safety best practices.

Question 34: What is the PRIMARY purpose of obtaining FANUC certification in Fuji Automatic Numerical Control Robotics Certification?

To guarantee employment
To bypass educational requirements
To satisfy a personal achievement goal
To demonstrate verified competency and adherence to professional standards (Correct answer)

Correct answer: To demonstrate verified competency and adherence to professional standards

Certification demonstrates verified competency and adherence to professional standards.

Question 35: Which foundational principle is MOST important for success in Fuji Automatic Numerical Control Robotics Certification?

Commitment to continuous learning, ethical practice, and quality outcomes (Correct answer)
Specializing in only one narrow area
Maximizing financial returns
Maintaining minimum certification requirements

Correct answer: Commitment to continuous learning, ethical practice, and quality outcomes

Success requires continuous learning, ethical practice, and focus on quality outcomes.

Question 36: In FANUC laser cutting or seam tracking applications, what is the role of the laser displacement sensor?

To measure ambient light for vision calibration
To set the robot's joint zero position
To detect part presence on the fixture
To measure the workpiece surface profile in real time and adjust the torch or nozzle standoff distance (Correct answer)

Correct answer: To measure the workpiece surface profile in real time and adjust the torch or nozzle standoff distance

A laser displacement sensor continuously measures the distance from the robot's tool to the workpiece surface, and the controller uses this data to maintain a consistent standoff height.

Question 37: How often should CNC tools be inspected?

Only once a year
Before each use (Correct answer)
After machine breaks down
Never

Correct answer: Before each use

CNC tools should be inspected before each use to ensure they are in optimal condition. This practice helps identify any wear, damage, or dullness that could compromise machining accuracy, workpiece quality, or even lead to tool breakage and safety hazards. Regular inspection extends tool life and maintains consistent production quality.

Question 38: In a FANUC cell using PROFINET IO, the robot controller is configured as a:

PROFINET IO Supervisor for network diagnostics only
PROFINET IO Controller polling other field devices
PROFINET Proxy bridging to EtherNet/IP
PROFINET IO Device (slave) communicating with a PROFINET IO Controller (PLC master) (Correct answer)

Correct answer: PROFINET IO Device (slave) communicating with a PROFINET IO Controller (PLC master)

FANUC robots configured for PROFINET operate as IO Devices (slaves), with the Siemens or other brand PLC acting as the IO Controller (master).

Question 39: What key on the FANUC teach pendant cycles through available coordinate systems (Joint, World, Tool, User) during manual jogging?

SHIFT + RESET
BACK + SELECT combination
NEXT + ENTER combination
COORD key (Correct answer)

Correct answer: COORD key

The COORD key on the FANUC teach pendant toggles the active coordinate system for jogging, cycling through Joint, World, Tool, and User frame modes.

Question 40: Under ANSI/RIA R15.06, what is the minimum safe distance formula used when calculating the safety distance for a presence-sensing device?

Ds = K × (Ts + Tc)
Ds = K × (Ts + Tc + Tr + Tbm) (Correct answer)
Ds = K × Tr only
Ds = K × (Ts + Tbm)

Correct answer: Ds = K × (Ts + Tc + Tr + Tbm)

ANSI/RIA R15.06 uses Ds = K × (Ts + Tc + Tr + Tbm) where K is hand speed, Ts is stopping time, Tc is control system response, Tr is sensor response, and Tbm is brake monitor time.

Question 41: Which statement BEST describes the relationship between Fuji Automatic Numerical Control Robotics Certification certification and industry evolution?

Changes only occur when government mandates them
Requirements become less stringent over time
Requirements evolve periodically to reflect advances in knowledge and practice (Correct answer)
Certification requirements never change

Correct answer: Requirements evolve periodically to reflect advances in knowledge and practice

Certification requirements evolve to keep pace with professional and technological advances.

Question 42: What does an error code on the CNC controller indicate?

User login status
Robot speed
Robot's power level
Specific fault or issue (Correct answer)

Correct answer: Specific fault or issue

Error codes displayed on a CNC controller are diagnostic indicators designed to communicate specific problems within the robot's system. Each code corresponds to a particular fault or issue, guiding technicians to the exact area requiring attention for efficient troubleshooting and repair.

Question 43: Which control element on the FANUC teach pendant must be held in the intermediate position to enable robot motion in T1 or T2 manual mode?

RESET button
SHIFT key
ENTER key
Deadman (enable) switch (Correct answer)

Correct answer: Deadman (enable) switch

The deadman switch must be held in its middle position; releasing it completely or squeezing it too hard both trigger an E-stop, ensuring the operator stays alert.

Question 44: What is the primary interface device used to program and operate a FANUC robot in the field?

Desktop PC with offline software
Tablet computer via Bluetooth
Teach Pendant (iPendant) (Correct answer)
Touch screen monitor mounted on the cell

Correct answer: Teach Pendant (iPendant)

The teach pendant, specifically the iPendant on modern FANUC systems, is the primary handheld device used to program and manually control FANUC robots.

Question 45: A FANUC Collaborative Robot (CR series) stops unexpectedly in production. After confirming no physical contact occurred, the technician should check which system first?

The Force/Torque sensor calibration and sensitivity threshold settings (Correct answer)
The pneumatic pressure regulator for the gripper
The EtherNet/IP scanner for dropped packets
The vision system camera exposure settings

Correct answer: The Force/Torque sensor calibration and sensitivity threshold settings

CR-series collaborative robots use integrated force/torque sensing to detect contact; false stops typically result from miscalibrated or overly sensitive thresholds that must be reviewed in the safety configuration.

Question 46: On a FANUC teach pendant, which menu path is used to view and configure digital I/O signal assignments?

MENU > SETUP > Frames
MENU > I/O > Digital (Correct answer)
MENU > SYSTEM > Variables
MENU > STATUS > Axes

Correct answer: MENU > I/O > Digital

Digital I/O assignment and status monitoring is accessed via MENU > I/O on the FANUC teach pendant, where individual signal states, assignments, and simulation can be managed.

Question 47: What is the purpose of safety interlocks in robots?

To increase speed
To prevent unsafe operation (Correct answer)
To control power supply
To monitor temperature

Correct answer: To prevent unsafe operation

Safety interlocks are critical components in robotic systems designed to prevent unsafe operation. They typically stop the robot or prevent it from starting if a safety barrier is breached, a guard is open, or an operator enters a hazardous zone, thereby protecting personnel from injury.

Question 48: Which built-in FANUC iPendant capability allows a networked PC to monitor controller status via a standard web browser?

FANUC FIELD system agent
FANUC Data Management Console (DMC) standalone app
iRVision remote web console
iPendant built-in web server (browser interface) (Correct answer)

Correct answer: iPendant built-in web server (browser interface)

The iPendant includes an integrated web server that exposes controller status, alarm history, and some configuration pages accessible from any networked computer's standard browser.

Question 49: Which alarm prefix does FANUC use for errors related to the robot servo drive system?

SYST
INTP
SRVO (Correct answer)
MOTN

Correct answer: SRVO

SRVO alarms indicate servo drive faults such as overcurrent, encoder errors, or position deviations; SYST covers system errors, INTP covers interpreter errors, and MOTN covers motion planning errors.

Question 50: Which FANUC backup method captures programs, system variables, I/O configuration, and mastering data in a single operation?

Cold Start backup procedure
MIRROR IMAGE backup
System DUMP function only
FILE utility 'All of the Above' backup (Correct answer)

Correct answer: FILE utility 'All of the Above' backup

The FANUC FILE utility's 'All of the Above' option (or equivalent full backup) saves all categories of controller data including programs, variables, I/O setup, and calibration data in one step.

Question 51: Which FANUC ROBOGUIDE workcell component is required to simulate conveyor-tracking applications accurately?

An external PLC hardware emulator connected via EtherNet/IP
The iRVision virtual camera plug-in
Virtual encoder simulation with a simulated line tracking schedule (Correct answer)
A second robot designated as the conveyor proxy

Correct answer: Virtual encoder simulation with a simulated line tracking schedule

Accurate conveyor-tracking simulation in ROBOGUIDE requires configuring a virtual encoder that feeds simulated encoder pulses matching the configured line tracking schedule parameters.

Question 52: A FANUC robot arm drifts out of position overnight with the controller powered off. What is the most likely cause?

Faulty Ethernet communication card
Misconfigured DCS safe zone
Worn or failed axis brake not holding joint position (Correct answer)
Corrupted TP program memory

Correct answer: Worn or failed axis brake not holding joint position

If a robot axis drifts when power is removed, the electromagnetic brake for that joint is failing to engage and hold, requiring brake inspection or replacement.

Question 53: Which FANUC safety zone type triggers a stop only when the robot TCP exits a defined boundary?

DCS Cartesian position check (outside stop) (Correct answer)
Interference zone
Joint position check
DCS Cartesian position check (inside stop)

Correct answer: DCS Cartesian position check (outside stop)

An 'outside stop' DCS Cartesian position check halts the robot if the TCP moves outside the defined safe volume.

Question 54: In a FANUC multi-group system, what does 'independent motion' mode allow compared to coordinated motion mode?

Each motion group executes its own motion path simultaneously but without maintaining a fixed spatial relationship between groups (Correct answer)
Only independent mode allows use of circular motion instructions
Independent motion doubles the maximum TCP speed of each group
Groups share a single motion buffer so one group's deceleration slows all others

Correct answer: Each motion group executes its own motion path simultaneously but without maintaining a fixed spatial relationship between groups

Independent motion allows multiple motion groups to move concurrently on separate, unsynchronized paths, unlike coordinated motion which maintains a rigid kinematic relationship between groups.

Question 55: In a FANUC Karel program, what is the correct data type to declare a variable that holds a complete 6-DOF robot position in Cartesian space?

XYZWPR
JOINTPOS
VECTOR
POSITION (Correct answer)

Correct answer: POSITION

The POSITION data type in Karel stores a full Cartesian position including X, Y, Z coordinates and W, P, R orientation angles along with configuration data.

Question 56: What should be checked first if the robot is not moving?

Robot color
Software version
Power and emergency stop (Correct answer)
Tool length

Correct answer: Power and emergency stop

If a CNC robot is not moving, the immediate first checks should always be the power supply and the status of any emergency stop buttons. An activated emergency stop or a lack of power will prevent any robot movement, and these are simple yet critical checks to rule out before deeper diagnostics.

Question 57: Which tool is essential for checking alignment?

Pliers
Laser alignment tool (Correct answer)
Screwdriver
Hammer

Correct answer: Laser alignment tool

A laser alignment tool is essential for checking the precise alignment of robotic components and axes. Its high accuracy ensures that the robot operates within specified tolerances, which is critical for maintaining precision in manufacturing tasks and preventing mechanical stress.

Question 58: In FANUC TP programming, what does the OFFSET instruction do when applied to a position register?

It resets the position register to its home value
It shifts the robot's target position by a specified offset value (Correct answer)
It locks the position register from further modification
It copies the position register to a backup location

Correct answer: It shifts the robot's target position by a specified offset value

The OFFSET instruction shifts the programmed target position by the values stored in an offset condition register, enabling position adjustment without editing the original taught points.

Question 59: What does the FANUC R-30iB controller's iRCalibration feature automatically compute?

The optimal joint speed profile for a given payload
The robot's TCP from a series of taught approaches to a fixed point (Correct answer)
The vision camera focal length
The servo amplifier current offsets

Correct answer: The robot's TCP from a series of taught approaches to a fixed point

iRCalibration uses multiple approaches to a reference point to mathematically determine the TCP offset.

Question 60: What is the correct sequence to perform a cold start on a FANUC robot controller?

Cycle power while holding PREV + NEXT on the teach pendant (Correct answer)
Hold F1 + F5 during boot to access the configuration menu
Power off, wait 30 seconds, then power on normally
Set the controller mode switch to COLD then cycle power

Correct answer: Cycle power while holding PREV + NEXT on the teach pendant

Holding PREV + NEXT during controller power-up forces a controlled cold start that clears runtime state.

Question 61: In FANUC TP programming, what does the SKIP CONDITION instruction do?

Abandons the current motion and jumps to a label if a specified condition is true mid-move (Correct answer)
Skips all lines with a CNT termination type
Bypasses the current program and runs the next in the queue
Skips the next line if a numeric register equals zero

Correct answer: Abandons the current motion and jumps to a label if a specified condition is true mid-move

SKIP CONDITION allows the robot to abort a move and branch to a label if the defined I/O or register condition becomes true during motion.

Question 62: What is the purpose of a Force/Torque (F/T) sensor mounted at a FANUC robot's wrist?

To monitor joint motor temperatures
To calibrate the tool center point automatically
To measure contact forces and enable force-guided assembly, polishing, and insertion tasks (Correct answer)
To weigh the workpiece for quality control only

Correct answer: To measure contact forces and enable force-guided assembly, polishing, and insertion tasks

A wrist-mounted F/T sensor measures forces and torques in all six axes, enabling the robot to perform compliant assembly, surface following, and insertion operations.

Question 63: Which alarm code prefix on a FANUC controller indicates a servo system fault?

MOTN
SYST
INTP
SRVO (Correct answer)

Correct answer: SRVO

Alarms beginning with SRVO relate to the servo drive and motor feedback systems.

Question 64: When using FANUC's Coordinated Motion feature with a positioner, which setting defines which device acts as the master for path interpolation?

Whichever group has INTP enabled first
Lead group designation in the coordinated motion setup (Correct answer)
The group with the lowest group number always leads
The group with the highest payload rating

Correct answer: Lead group designation in the coordinated motion setup

In coordinated motion, the lead group is explicitly designated during setup and controls the path; the follower group synchronizes its motion to maintain the TCP-to-workpiece relationship.

Question 65: Why is software version control important?

To prevent software updates
To avoid backups
To slow development
To track changes and manage collaboration (Correct answer)

Correct answer: To track changes and manage collaboration

Software version control is critical for managing changes to code and other project files over time. It allows development teams to track every modification, revert to previous versions if needed, and merge contributions from multiple developers without conflicts. This system is essential for collaboration, maintaining code integrity, and ensuring a stable development process.

Question 66: A FANUC robot's Dual Check Safety (DCS) function monitors which parameters to enforce safe zones?

Only Cartesian position
Only joint angles
Only TCP speed
Joint angles, TCP position, and TCP speed simultaneously (Correct answer)

Correct answer: Joint angles, TCP position, and TCP speed simultaneously

FANUC DCS simultaneously monitors joint angles, TCP Cartesian position, and TCP speed to enforce configurable safe zones and speed limits.

Question 67: Which category of safety-rated stop in ISO 10218 allows the robot to maintain power and position while stopping all motion?

Category 2 stop (Correct answer)
Category 0 stop
Category 1 stop
Category 3 stop

Correct answer: Category 2 stop

Category 2 (protective stop) maintains power and position hold while stopping motion, allowing quick resumption without re-homing — used in collaborative robot scenarios.

Question 68: A FANUC 'SRVO-023 Stop error excess' alarm most likely indicates which condition?

Program memory is full and needs to be cleared
The robot's position error exceeded the allowed limit during deceleration to a stop (Correct answer)
The teach pendant battery needs replacement
A DeviceNet communication timeout occurred

Correct answer: The robot's position error exceeded the allowed limit during deceleration to a stop

SRVO-023 occurs when the servo system detects that actual position deviated from commanded position beyond the allowable limit during a stop, often due to excessive load or mechanical binding.

Question 69: What does the FANUC controller variable $SCR_GRP[1].$SOFTLMT indicate?

The network timeout for the controller
The screen refresh rate in milliseconds
The software joint travel limit boundaries for group 1 (Correct answer)
The current servo loop gain multiplier

Correct answer: The software joint travel limit boundaries for group 1

$SCR_GRP[1].$SOFTLMT contains the software over-travel limit values that the controller checks against joint angles to prevent exceeding the defined workspace.

Question 70: How does the FANUC body of knowledge relate to daily professional practice?

It is theoretical with limited application
It provides the foundational framework guiding decision-making and standard practices (Correct answer)
It only applies during exams
It is only for academic research

Correct answer: It provides the foundational framework guiding decision-making and standard practices

The body of knowledge provides the framework guiding daily decision-making and practices.

Question 71: How does the FANUC body of knowledge relate to daily professional practice?

It is theoretical with limited application
It only applies during exams
It provides the foundational framework guiding decision-making and standard practices (Correct answer)
It is only for academic research

Correct answer: It provides the foundational framework guiding decision-making and standard practices

The body of knowledge provides the framework guiding daily decision-making and practices.

Question 72: Which gripper design is preferred for FANUC palletizing robots handling fragile or irregularly shaped objects?

Vacuum (suction cup) gripper with multiple independently controlled zones (Correct answer)
Rigid mechanical clamp
Magnetic gripper
Two-finger parallel gripper

Correct answer: Vacuum (suction cup) gripper with multiple independently controlled zones

Multi-zone vacuum grippers allow sections to be activated or deactivated independently, conforming to different product sizes and protecting fragile items from excessive force.

Question 73: In FANUC TP, the instruction 'UTOOL_NUM=3' has what effect on subsequent motion instructions?

It sets the tool payload to the value stored in schedule 3
It switches the active tool frame to UTOOL[3], changing how TCP position and orientation are calculated (Correct answer)
It copies UTOOL[3] into UTOOL[1] for use as the default
It restricts motion to only Tool Frame 3's coordinate directions

Correct answer: It switches the active tool frame to UTOOL[3], changing how TCP position and orientation are calculated

UTOOL_NUM= selects which user tool frame (UTOOL[]) is active; all subsequent motion calculations will use the TCP definition stored in that tool frame.

Question 74: How does the FANUC body of knowledge relate to daily professional practice?

It is only for academic research
It is theoretical with limited application
It only applies during exams
It provides the foundational framework guiding decision-making and standard practices (Correct answer)

Correct answer: It provides the foundational framework guiding decision-making and standard practices

The body of knowledge provides the framework guiding daily decision-making and practices.

Question 75: Which coordinate frame is fixed to the robot's end-of-arm tooling and moves with it?

Joint frame
World frame
User frame
Tool frame (Correct answer)

Correct answer: Tool frame

The tool frame (TCP) is defined relative to the robot flange and translates/rotates with the tool.

Question 76: Which foundational principle is MOST important for success in Fuji Automatic Numerical Control Robotics Certification?

Specializing in only one narrow area
Commitment to continuous learning, ethical practice, and quality outcomes (Correct answer)
Maximizing financial returns
Maintaining minimum certification requirements

Correct answer: Commitment to continuous learning, ethical practice, and quality outcomes

Success requires continuous learning, ethical practice, and focus on quality outcomes.

Question 77: A FANUC robot's cycle time has gradually increased over several months. After checking programs, what maintenance item most likely contributes to this degradation?

An expired robot license key
Too many TP programs stored in memory
Outdated teach pendant firmware
Mechanical wear increasing joint friction and reducing achievable speed (Correct answer)

Correct answer: Mechanical wear increasing joint friction and reducing achievable speed

As harmonic drives and bearings wear, increased friction forces the servo system to reduce speed to stay within torque limits, gradually increasing cycle time.

Question 78: Which FANUC alarm indicates that the robot has exceeded its defined work envelope limit?

INTP-130 Program not found
MOTN-023 Joint limit exceeded (Correct answer)
SRVO-062 BZAL alarm
SRVO-023 Stop error excess

Correct answer: MOTN-023 Joint limit exceeded

MOTN-023 is triggered when a commanded position would place a joint beyond its software travel limit.

Question 79: During preventive maintenance, the recommended method to check FANUC robot grease condition in joint reducers is to:

Inspect grease color and quantity at the drain port during scheduled interval (Correct answer)
Check the grease level via the teach pendant grease monitoring screen
Replace grease only when a SRVO alarm appears
Run the joint at maximum speed and measure motor current spike

Correct answer: Inspect grease color and quantity at the drain port during scheduled interval

FANUC maintenance schedules require draining and inspecting grease at defined intervals (typically 3,840 operating hours) by checking the drain port for color, contamination, and correct quantity.

Question 80: What is the effect of setting CNT (Continuous) value to 0 in a FANUC motion instruction?

The motion blends fully and the robot never actually reaches the exact point
The robot comes to a complete stop at the programmed point before continuing (Correct answer)
The robot moves at 0% speed through that point
The robot skips the point and continues to the next instruction

Correct answer: The robot comes to a complete stop at the programmed point before continuing

CNT 0 (or FINE termination) causes the robot to decelerate to a complete stop at the exact programmed position before executing the next instruction.

Question 81: Under OSHA 29 CFR 1910.147 (Lockout/Tagout), when must lockout procedures be used instead of tagout for FANUC robot maintenance?

Always — tagout is never permitted on robots
Only during pneumatic energy isolation
Only when electrical energy exceeds 480V
When the energy isolating device is capable of being locked out (Correct answer)

Correct answer: When the energy isolating device is capable of being locked out

OSHA 1910.147 requires lockout (not tagout) whenever the energy isolating device is capable of being locked; tagout is only permitted when lockout is physically impossible.

Question 82: A FANUC robot's wrist joint (J4/J5/J6) cable unit requires replacement. After the replacement, which additional maintenance task is MANDATORY before returning the robot to production?

Re-teaching of all I/O wiring in the controller
Complete FROM memory initialization
Full TCP (Tool Center Point) calibration and wrist joint mastering (Correct answer)
Replacement of all three wrist servo amplifiers

Correct answer: Full TCP (Tool Center Point) calibration and wrist joint mastering

Replacing the wrist cable unit disturbs the wrist joint mechanical assembly, requiring re-mastering of the affected axes and TCP recalibration to ensure positional accuracy.

Question 83: Which FANUC program instruction is used to read the current value of a digital input signal into a register?

R[1]=DI[5] (Correct answer)
READ DI[5], R[1]
LOAD DI[5] TO R[1]
ASSIGN DI[5] R[1]

Correct answer: R[1]=DI[5]

In FANUC TP, assignment syntax 'R[n]=DI[m]' directly copies the state of digital input m (0 or 1) into numeric register n.

Question 84: What distinguishes a Fuji Automatic Numerical Control Robotics Certification certified professional from a non-certified practitioner?

Certified professionals always have more experience
Certified professionals only work in larger organizations
There is no meaningful difference
Certification validates competency through standardized assessment against benchmarks (Correct answer)

Correct answer: Certification validates competency through standardized assessment against benchmarks

Certification provides objective validation of competency through standardized assessment.

Question 85: Which component controls the CNC robot's movements?

Power supply
CNC controller (Correct answer)
Hydraulic pump
Cooling system

Correct answer: CNC controller

The CNC controller is the brain of the robot, responsible for interpreting the programmed G-code instructions and translating them into precise physical movements. It manages the robot's motors, axes, and tools, ensuring that each operation is executed accurately and in the correct sequence. Without the controller, the robot would be unable to perform its automated tasks.

Question 86: Why is lubrication important in CNC robots?

To shut down the robot
To speed up the robot
To change colors
To reduce friction and wear (Correct answer)

Correct answer: To reduce friction and wear

Lubrication is crucial in CNC robots to minimize friction between moving parts, such as gears, bearings, and joints. Proper lubrication reduces heat generation, prevents premature wear and tear, and ensures smooth, efficient operation, extending the lifespan of the robot's mechanical components.

Question 87: In FANUC Karel, which statement is used to pause program execution for a specified number of seconds?

HOLD
DELAY (Correct answer)
PAUSE
WAIT

Correct answer: DELAY

The DELAY statement in Karel halts execution for a defined duration before continuing.

Question 88: Which FANUC robot model is classified as a collaborative robot (cobot) rated for direct human contact without a safety fence?

M-20iB series
R-2000iC series
ARC Mate 100iD
CR series (e.g., CR-7iA, CR-35iA) (Correct answer)

Correct answer: CR series (e.g., CR-7iA, CR-35iA)

FANUC's CR series robots are designed for collaborative operation, featuring rounded covers, force-limiting safety functions, and ISO/TS 15066 compliance for contact with people.

Question 89: Which foundational principle is MOST important for success in Fuji Automatic Numerical Control Robotics Certification?

Maintaining minimum certification requirements
Maximizing financial returns
Commitment to continuous learning, ethical practice, and quality outcomes (Correct answer)
Specializing in only one narrow area

Correct answer: Commitment to continuous learning, ethical practice, and quality outcomes

Success requires continuous learning, ethical practice, and focus on quality outcomes.

Question 90: What distinguishes a Fuji Automatic Numerical Control Robotics Certification certified professional from a non-certified practitioner?

There is no meaningful difference
Certified professionals only work in larger organizations
Certification validates competency through standardized assessment against benchmarks (Correct answer)
Certified professionals always have more experience

Correct answer: Certification validates competency through standardized assessment against benchmarks

Certification provides objective validation of competency through standardized assessment.

Question 91: Which software tool helps simulate CNC robot paths?

CAD/CAM software (Correct answer)
Word processor
Email client
Spreadsheet

Correct answer: CAD/CAM software

CAD/CAM (Computer-Aided Design/Computer-Aided Manufacturing) software is widely used in robotics to design parts, plan manufacturing processes, and simulate robot paths. This software allows engineers to visualize and optimize robot movements, detect potential collisions, and refine programming before implementation on the physical robot. It significantly improves efficiency and safety in robot deployment.

Question 92: What is the key functional difference between a 'safety-rated monitored stop' and a 'protective stop' in ISO/TS 15066 collaborative robot applications?

Safety-rated monitored stop cuts power; protective stop maintains power and position (Correct answer)
There is no difference — the terms are interchangeable
Safety-rated monitored stop is for T1 mode only; protective stop is for automatic mode
Protective stop requires the human to leave before restart; safety-rated monitored stop allows restart without human departure

Correct answer: Safety-rated monitored stop cuts power; protective stop maintains power and position

A safety-rated monitored stop (SRMS) removes drive power while monitoring that the robot has not moved; a protective stop (Category 2) keeps power applied and maintains position hold for quick restart.

Question 93: A FANUC robot's collision detection (SPEED CHECK alarm) triggers repeatedly during a specific TP instruction. The tooling and payload settings are correct. What is the next troubleshooting step?

Reduce the robot speed to 10% permanently
Replace the servo amplifier for the flagged axis
Disable collision detection for the entire program
Increase the collision detection sensitivity level (or adjust the torque model) for that motion segment (Correct answer)

Correct answer: Increase the collision detection sensitivity level (or adjust the torque model) for that motion segment

If collision detection false-triggers on a specific motion, adjusting the collision detection sensitivity level or refining the torque model for that segment prevents nuisance alarms without disabling safety.

Question 94: Which FANUC robot axis is responsible for the rotation of the wrist roll?

J3
J5
J4
J6 (Correct answer)

Correct answer: J6

J6 controls wrist roll rotation, allowing the end-of-arm tooling to spin about the tool centerpoint.

Question 95: When configuring FANUC EtherNet/IP adapter mode, the robot controller acts as a:

Bridge between two separate EtherNet/IP networks
Proxy for legacy DeviceNet devices
Target (slave) device that the scanner (PLC) reads and writes (Correct answer)
Scanner (master) that polls other devices

Correct answer: Target (slave) device that the scanner (PLC) reads and writes

In EtherNet/IP adapter mode, the FANUC controller is the target (slave) device and the PLC acts as the scanner (master) that initiates I/O connections.

Question 96: What distinguishes a Fuji Automatic Numerical Control Robotics Certification certified professional from a non-certified practitioner?

Certified professionals always have more experience
There is no meaningful difference
Certified professionals only work in larger organizations
Certification validates competency through standardized assessment against benchmarks (Correct answer)

Correct answer: Certification validates competency through standardized assessment against benchmarks

Certification provides objective validation of competency through standardized assessment.

Question 97: How does the FANUC body of knowledge relate to daily professional practice?

It is only for academic research
It provides the foundational framework guiding decision-making and standard practices (Correct answer)
It only applies during exams
It is theoretical with limited application

Correct answer: It provides the foundational framework guiding decision-making and standard practices

The body of knowledge provides the framework guiding daily decision-making and practices.

Question 98: Which FANUC feature allows multiple robots to share the same workspace and coordinate their movements to avoid collisions?

DCS Zone Limiting
ROBOGUIDE Simulation
Coordinated Motion / Multi-Robot Control (Correct answer)
Cycle Time Optimizer

Correct answer: Coordinated Motion / Multi-Robot Control

FANUC's Coordinated Motion and Multi-Robot Control software allows two or more robots to synchronize their movements and manage shared workspace safely.

Question 99: A FANUC robot displays alarm code SRVO-023 (Stop Error Excess). What is the most likely cause?

The robot reached a position error exceeding the defined threshold during motion (Correct answer)
The servo amplifier has overheated
The emergency stop circuit is open
The teach pendant battery is low

Correct answer: The robot reached a position error exceeding the defined threshold during motion

SRVO-023 indicates the positional deviation between commanded and actual position exceeded the stop error limit, typically caused by mechanical binding or incorrect gain settings.

Question 100: Which foundational principle is MOST important for success in Fuji Automatic Numerical Control Robotics Certification?

Specializing in only one narrow area
Maximizing financial returns
Commitment to continuous learning, ethical practice, and quality outcomes (Correct answer)
Maintaining minimum certification requirements

Correct answer: Commitment to continuous learning, ethical practice, and quality outcomes

Success requires continuous learning, ethical practice, and focus on quality outcomes.

Question 101: A FANUC R-30iB controller's Error Recovery function (RESUME) is designed to:

Re-teach the last recorded position automatically
Perform a full power-cycle of the controller
Allow the program to continue from the interrupted position after an alarm is cleared (Correct answer)
Reset all system variables to factory defaults

Correct answer: Allow the program to continue from the interrupted position after an alarm is cleared

The RESUME function allows the robot to recover gracefully from an interrupted motion by continuing the current program line after the operator clears the fault and confirms it is safe.

Question 102: What distinguishes a Fuji Automatic Numerical Control Robotics Certification certified professional from a non-certified practitioner?

There is no meaningful difference
Certified professionals only work in larger organizations
Certification validates competency through standardized assessment against benchmarks (Correct answer)
Certified professionals always have more experience

Correct answer: Certification validates competency through standardized assessment against benchmarks

Certification provides objective validation of competency through standardized assessment.

Question 103: What is the function of the FANUC KAREL language compared to Teach Pendant (TP) programming?

KAREL is used exclusively for vision calibration routines
KAREL replaces the motion instructions in TP programs
KAREL is only available on FANUC M-Series robots
KAREL is a structured text language enabling complex logic, file I/O, and string handling not possible in TP (Correct answer)

Correct answer: KAREL is a structured text language enabling complex logic, file I/O, and string handling not possible in TP

FANUC KAREL is a Pascal-based structured programming language that enables advanced logic, file operations, screen menus, and math operations beyond what TP allows.

Question 104: Which protocol is commonly used for robot communication?

Ethernet/IP (Correct answer)
FTP
SMTP
HTTP

Correct answer: Ethernet/IP

Ethernet/IP is a widely adopted industrial communication protocol used for real-time data exchange between robots, PLCs, and other industrial devices. It leverages standard Ethernet technology to provide high-speed, reliable communication in manufacturing environments. Its prevalence makes it a common choice for integrating various components within a robotic system.

Question 105: What is the PRIMARY purpose of obtaining FANUC certification in Fuji Automatic Numerical Control Robotics Certification?

To satisfy a personal achievement goal
To bypass educational requirements
To demonstrate verified competency and adherence to professional standards (Correct answer)
To guarantee employment

Correct answer: To demonstrate verified competency and adherence to professional standards

Certification demonstrates verified competency and adherence to professional standards.

Question 106: A FANUC R-30iB robot displays a SRVO-062 (BZAL Alarm) on multiple axes simultaneously after a power outage. What should the technician do first?

Replace the main CPU board
Check and replace the controller's SRAM backup battery, then perform mastering (Correct answer)
Initialize the FROM memory and reload all programs
Replace all pulse coders immediately

Correct answer: Check and replace the controller's SRAM backup battery, then perform mastering

SRVO-062 BZAL indicates battery alarm on the pulse coder; when multiple axes show this after a power outage, the controller SRAM battery is depleted and must be replaced before mastering is redone.

Question 107: In Fuji Automatic Numerical Control Robotics Certification practice, what is the FIRST step when a safety hazard is identified in the workplace?

Continue working and report at end of shift
Immediately secure the area and report the hazard (Correct answer)
Wait for a supervisor to notice the issue
Document it for the next safety audit

Correct answer: Immediately secure the area and report the hazard

When a safety hazard is identified, the immediate priority is to secure the area to prevent injury and report the hazard through proper channels.

Question 108: What distinguishes a Fuji Automatic Numerical Control Robotics Certification certified professional from a non-certified practitioner?

Certification validates competency through standardized assessment against benchmarks (Correct answer)
Certified professionals only work in larger organizations
There is no meaningful difference
Certified professionals always have more experience

Correct answer: Certification validates competency through standardized assessment against benchmarks

Certification provides objective validation of competency through standardized assessment.

Question 109: Which risk management approach is MOST effective for FANUC professionals when evaluating potential workplace hazards?

Proactive hazard identification and assessment (Correct answer)
Delegating all safety decisions to management
Reactive analysis after incidents occur
Relying solely on historical accident data

Correct answer: Proactive hazard identification and assessment

Proactive hazard identification and assessment allows professionals to identify and mitigate risks before incidents occur.

Question 110: Which FANUC robot series is most commonly used for arc welding applications due to its slim arm and hollow wrist design?

M-2000iA series
LR Mate series
CR-35iA series
ARC Mate series (Correct answer)

Correct answer: ARC Mate series

The FANUC ARC Mate series is specifically designed for arc welding, featuring a hollow wrist for routing welding wire and cables through the arm.

Question 111: When a FANUC controller detects a fault condition, how is the operator primarily notified?

The robot automatically restarts the program
A green status light turns off only
A continuous audible alarm sounds only
An alarm code and description appear on the teach pendant screen (Correct answer)

Correct answer: An alarm code and description appear on the teach pendant screen

FANUC controllers display an alarm code and a plain-language description on the teach pendant when a fault is detected, allowing the operator to identify and resolve the issue.

Question 112: What is the purpose of debugging software?

To confuse users
To find and fix errors (Correct answer)
To add new features
To delete software

Correct answer: To find and fix errors

The primary purpose of debugging software is to identify and resolve errors, or 'bugs,' within a program. Debugging involves systematically testing the code, tracing its execution, and analyzing its behavior to pinpoint where issues occur. This process is essential for ensuring that software functions correctly, reliably, and as intended.

Question 113: What is the MOST effective way for new FANUC professionals to build competency?

Focusing solely on advanced topics
Learning through trial and error
Combining formal education, mentored practice, and ongoing professional development (Correct answer)
Studying certification materials exclusively

Correct answer: Combining formal education, mentored practice, and ongoing professional development

Building competency requires formal education, mentored practice, and ongoing development.

Question 114: What FANUC software option is used to automatically generate optimized palletizing patterns and positions without manually teaching each pallet layer?

FANUC iRCalibration
FANUC Line Tracking
FANUC PalletTool (Correct answer)
FANUC Coordinated Motion

Correct answer: FANUC PalletTool

FANUC PalletTool software generates complete pallet layer patterns and robot positions from user-defined box dimensions and pallet size, eliminating manual position teaching.

Question 115: What is a PLC in robotics?

Peripheral Link Connector
Programmable Logic Controller (Correct answer)
Primary Logic Computer
Power Line Controller

Correct answer: Programmable Logic Controller

A PLC, or Programmable Logic Controller, is an industrial computer control system that continuously monitors the state of input devices and makes decisions based on a custom program to control the state of output devices. In robotics, PLCs are crucial for automating sequential control processes, managing peripheral equipment, and ensuring reliable operation within a manufacturing environment.

Question 116: What is the main function of a CNC robot?

Manual welding
Human supervision only
Automated precision machining (Correct answer)
Packaging products

Correct answer: Automated precision machining

The main function of a CNC (Computer Numerical Control) robot is automated precision machining. These robots are programmed to perform highly accurate and repeatable tasks such as cutting, drilling, milling, and turning materials. This automation significantly increases efficiency, consistency, and accuracy in manufacturing processes compared to manual operations.

Question 117: In FANUC material removal (deburring) applications, which software feature compensates for tool wear and keeps consistent contact force on the part surface?

Joint limit override
Payload identification routine
Force Control (FANUC Force Sensor) with constant-force motion (Correct answer)
Constant velocity override (OVR) setting

Correct answer: Force Control (FANUC Force Sensor) with constant-force motion

FANUC's Force Control software, using wrist-mounted F/T sensor feedback, maintains a user-defined constant contact force even as the deburring tool wears down.

Question 118: During a FANUC mastering procedure using the witness mark method, what must be true before setting the zero point?

The robot must be powered off and restarted
Each joint must be aligned so its witness marks are exactly matched (Correct answer)
All joints must be at their maximum travel
The payload must be removed from the flange

Correct answer: Each joint must be aligned so its witness marks are exactly matched

Witness mark mastering requires aligning the scribed lines on each joint before recording the zero encoder count.

Question 119: What is the maximum allowable transient contact force per ISO/TS 15066 for the hand/finger area when a cobot makes unintended contact?

65 N
50 N
140 N (Correct answer)
280 N

Correct answer: 140 N

ISO/TS 15066 Annex A specifies a quasi-static force limit of 140 N for the hand/finger body region during unintended collaborative robot contact.

Question 120: Which ISO standard specifically addresses safety requirements for industrial robots working collaboratively with humans (cobots)?

ISO/TS 15066 (Correct answer)
ISO 11161
ISO 10218-2
ISO 13849-1

Correct answer: ISO/TS 15066

ISO/TS 15066 is the technical specification that defines safety requirements and guidance for collaborative robot systems, supplementing ISO 10218-1 and 10218-2.

Question 121: Which FANUC software option allows a robot program to be executed directly from a PC without first transferring the TP file to the controller?

iRVision
FTP Background Editing
RoboRealm Bridge
ROBOGUIDE Remote Run (Correct answer)

Correct answer: ROBOGUIDE Remote Run

ROBOGUIDE's Remote Run feature can stream and execute programs from a PC for simulation and testing, though production use requires the file on the controller.

Question 122: In FANUC iRVision, what is a 2D single-view vision process primarily used for?

Inspecting weld bead geometry
Measuring 3D object height with a structured-light camera
Calibrating the robot's joint zero positions
Locating parts on a flat surface using a single camera image (Correct answer)

Correct answer: Locating parts on a flat surface using a single camera image

2D single-view processes detect part position and orientation from one camera image on a known plane.

Question 123: In FANUC's DCS (Dual Check Safety) system, what is the primary purpose of a Cartesian Position Check?

To restrict the robot's TCP from entering a defined Cartesian zone (Correct answer)
To monitor joint torque limits
To check network communication latency
To verify encoder battery voltage

Correct answer: To restrict the robot's TCP from entering a defined Cartesian zone

A DCS Cartesian Position Check defines a 3D box in Cartesian space and triggers a safety stop if the robot's TCP enters or exits that zone.

Question 124: According to ISO 10218-2, who bears primary responsibility for the overall safety of an integrated robotic system (the complete robot cell)?

The end user/operator
OSHA inspectors
The system integrator (Correct answer)
The robot manufacturer (e.g., FANUC)

Correct answer: The system integrator

ISO 10218-2 places primary responsibility for the safety of the integrated robot system on the system integrator, who designs and installs the complete cell.

Question 125: Why must robots have clear safety signage?

To warn operators (Correct answer)
To confuse workers
For decoration
To increase cost

Correct answer: To warn operators

Clear safety signage on and around robots is essential for communicating potential hazards and necessary precautions to operators and other personnel. These signs provide immediate visual warnings about moving parts, restricted areas, or specific safety procedures. This helps ensure that everyone in the vicinity understands the risks and acts safely, preventing accidents.

Question 126: Which non-volatile memory type in a FANUC controller stores user programs and system data even when controller power is removed?

RAM (Random Access Memory)
CPU registers
Cache memory
FROM (Flash ROM) (Correct answer)

Correct answer: FROM (Flash ROM)

FANUC controllers use FROM (Flash Read-Only Memory) as persistent storage for user programs, system variables, and configuration data that survives power loss.

Question 127: What is the primary purpose of performing a 'Controlled Start' on a FANUC controller?

To access system-level configuration settings restricted during normal operation (Correct answer)
To run a warm-up cycle before production after a cold environment startup
To start the robot in a speed-limited training mode for new operators
To initiate a full memory wipe and restore factory defaults

Correct answer: To access system-level configuration settings restricted during normal operation

A Controlled Start boots the FANUC controller into a special maintenance mode that provides access to mastering, system configuration, and memory management options not available during normal startup.

Question 128: In FANUC Karel, what is the purpose of the ROUTINE construct?

It schedules a Karel program to run at a fixed time interval
It defines a reusable subroutine that can accept parameters and return values (Correct answer)
It establishes communication handshakes with external PLCs
It declares global constants shared across all programs on the controller

Correct answer: It defines a reusable subroutine that can accept parameters and return values

A ROUTINE in Karel is a named subroutine block that can receive input parameters and return values, enabling modular and reusable program structure.

Question 129: What does pressing the RESET function key on a FANUC teach pendant accomplish during an active alarm?

Performs a complete controller restart
Restores all system settings to factory defaults
Resets all programs to their start line
Clears the alarm if the underlying fault condition has been resolved (Correct answer)

Correct answer: Clears the alarm if the underlying fault condition has been resolved

RESET clears active alarms on the teach pendant only after the root cause fault condition has been corrected, allowing the robot to return to normal operation.

Question 130: What is the PRIMARY purpose of obtaining FANUC certification in Fuji Automatic Numerical Control Robotics Certification?

To satisfy a personal achievement goal
To bypass educational requirements
To demonstrate verified competency and adherence to professional standards (Correct answer)
To guarantee employment

Correct answer: To demonstrate verified competency and adherence to professional standards

Certification demonstrates verified competency and adherence to professional standards.

Question 131: What is the function of the FANUC 'Quick Master' (or Single-Axis Master) procedure?

Performs mastering automatically while the robot runs a test program
Masters all axes simultaneously using a reference fixture
Re-establishes the reference for a single axis without disturbing others, used after motor/encoder replacement on one joint (Correct answer)
Imports mastering data from a backup file

Correct answer: Re-establishes the reference for a single axis without disturbing others, used after motor/encoder replacement on one joint

Quick Master (Single-Axis Master) allows re-mastering of only the affected joint by positioning it at its reference mark, leaving the other axes' mastering data intact.

Question 132: Which joint configuration setting prevents a FANUC robot from flipping its wrist during continuous linear motion?

CNT value set to 0 at all waypoints
TCP speed limit below 500 mm/s
Wrist Joint (WJ) flag in the program footer
SINGULARITY AVOIDANCE enable in motion setup (Correct answer)

Correct answer: SINGULARITY AVOIDANCE enable in motion setup

Enabling singularity avoidance allows the controller to deviate slightly from the programmed path to prevent J5 near-zero wrist flip.

Question 133: On the FANUC R-30iB+ controller, what does the STATUS indicator light flashing amber (yellow) signify?

A non-fatal alarm is active but the robot can still run (Correct answer)
The robot is executing a program normally
The teach pendant is disconnected
The E-stop circuit is open

Correct answer: A non-fatal alarm is active but the robot can still run

A flashing amber STATUS light indicates a warning-level alarm that does not prevent motion but should be investigated.

Question 134: What is the PRIMARY purpose of obtaining FANUC certification in Fuji Automatic Numerical Control Robotics Certification?

To guarantee employment
To demonstrate verified competency and adherence to professional standards (Correct answer)
To bypass educational requirements
To satisfy a personal achievement goal

Correct answer: To demonstrate verified competency and adherence to professional standards

Certification demonstrates verified competency and adherence to professional standards.

Question 135: How does a FANUC R-30iB controller determine the maximum number of programs that can be stored?

Available FROM (Flash ROM) space, allowing thousands of programs depending on size (Correct answer)
A fixed limit of exactly 999 programs
A fixed limit of exactly 100 programs
A fixed limit of 256 programs set at the factory

Correct answer: Available FROM (Flash ROM) space, allowing thousands of programs depending on size

Program count is limited by available FROM flash memory space rather than a fixed file count, so thousands of small programs or fewer large programs can be stored depending on their size.

Question 136: In Fuji Automatic Numerical Control Robotics Certification, what is the PRIMARY purpose of conducting regular safety drills and exercises?

To ensure personnel can respond effectively in emergencies (Correct answer)
To reduce daily workload
To satisfy insurance requirements only
To evaluate employee performance reviews

Correct answer: To ensure personnel can respond effectively in emergencies

Regular safety drills ensure that all personnel are prepared to respond effectively during actual emergencies.

Question 137: Which FANUC feature allows a robot to continue producing parts during a scheduled downtime by automatically switching between two fixtures?

Dual Fixture / Synchronized I/O mode allowing one fixture to be loaded while the other is being processed (Correct answer)
Coordinated motion between two robots on the same part
FANUC Restart from Alarm function
PalletTool automatic layer switching

Correct answer: Dual Fixture / Synchronized I/O mode allowing one fixture to be loaded while the other is being processed

Dual fixture setups with synchronized I/O allow an operator to unload/reload one fixture while the robot works on the other, achieving near-100% spindle or processing uptime.

Question 138: What information is stored in the FANUC TP program's header section?

The teach pendant firmware version
The servo gain tuning parameters
Program attributes such as group mask, write protect, and comment (Correct answer)
Only the position register data

Correct answer: Program attributes such as group mask, write protect, and comment

The program header holds metadata including the motion group mask, protection settings, and descriptive comments.

Question 139: What does CNT (Continuous) termination type control in a FANUC TP program?

The number of retries after a motion fault
The speed of the joint servo loop
How closely the robot follows the exact programmed position before blending to the next (Correct answer)
The deceleration ramp at program end

Correct answer: How closely the robot follows the exact programmed position before blending to the next

CNT 0–100 sets the corner rounding amount; CNT 0 passes through the point, CNT 100 maximizes the blend.

Question 140: Which foundational principle is MOST important for success in Fuji Automatic Numerical Control Robotics Certification?

Maximizing financial returns
Maintaining minimum certification requirements
Commitment to continuous learning, ethical practice, and quality outcomes (Correct answer)
Specializing in only one narrow area

Correct answer: Commitment to continuous learning, ethical practice, and quality outcomes

Success requires continuous learning, ethical practice, and focus on quality outcomes.

Question 141: Which FANUC peripheral interface standard supports hot-swappable end-of-arm tools and automatic program and I/O routing changes?

PROFIBUS DP Class 1
CNC-Link Protocol
FANUC Intelligent Robot Interface (iRIS)
Tool Change Interface (TCI) with automatic configuration (Correct answer)

Correct answer: Tool Change Interface (TCI) with automatic configuration

FANUC's Tool Change Interface with automatic configuration detects the connected tool via an ID signal and automatically routes the correct TP programs and I/O mappings.

Question 142: Which FANUC controller feature allows an operator to monitor and adjust robot program registers remotely from an HMI or SCADA system?

FANUC CNC DNC file transfer
Local teach pendant only
Web Server (iRWeb) or Socket Messaging interface (Correct answer)
HART protocol fieldbus

Correct answer: Web Server (iRWeb) or Socket Messaging interface

FANUC's built-in web server (iRWeb) and Socket Messaging interface allow remote systems to read and write program registers, I/O, and status data.

Question 143: In FANUC vision-guided bin picking, what challenge does '3D area sensor' technology solve compared to 2D vision?

It measures surface finish quality of machined parts
It replaces the robot's joint encoders
It identifies part color and brightness only
It provides depth information to locate randomly piled parts in three dimensions, enabling the robot to plan a collision-free grasp pose (Correct answer)

Correct answer: It provides depth information to locate randomly piled parts in three dimensions, enabling the robot to plan a collision-free grasp pose

3D area sensors capture point-cloud depth data so iRVision can determine the exact 3D position and orientation of randomly stacked parts for successful grasping.

Question 144: What does the FANUC Zero Torque Control mode enable during robot operation?

Allows the robot arm to be freely back-driven by hand with minimal resistance (Correct answer)
Disables the brake release interlock for maintenance
Sets joint speed to zero while keeping servos energized
Forces all joint torques to zero for payload estimation

Correct answer: Allows the robot arm to be freely back-driven by hand with minimal resistance

Zero Torque Control (also called drag-teach or gravity compensation mode) lets an operator manually guide the robot with minimal force.

Question 145: What distinguishes a FANUC Macro program from a standard TP program?

Macros are written exclusively in Karel and cannot contain motion instructions
Macros bypass all safety interlocks for faster execution
Macros run on a dedicated DSP core and cannot be paused
Macros can be called like built-in instructions, accept arguments, and can run in the background without appearing in the motion stack (Correct answer)

Correct answer: Macros can be called like built-in instructions, accept arguments, and can run in the background without appearing in the motion stack

Macro programs can be registered to execute like system instructions, accept up to ten arguments via AR[] registers, and are typically used for utility tasks that don't need to appear in the foreground program stack.

Question 146: Which safeguarding method defined in ISO 10218-2 uses robot force and power limiting to make physical contact with a human inherently safe?

Hand guiding
Speed and separation monitoring (SSM)
Power and force limiting (PFL) (Correct answer)
Safety-rated monitored stop

Correct answer: Power and force limiting (PFL)

Power and Force Limiting (PFL) is the collaborative method where the robot's hardware or control system inherently limits contact forces to safe levels, allowing direct human contact.

Question 147: When using FANUC's Dual Check Safety (DCS), a 'Position/Speed Check' violation alarm does NOT reset automatically after clearing. What must the technician do?

Cycle power and confirm the robot is within the safe zone before resuming (Correct answer)
Perform a DCS configuration backup and restore
Replace the DCS safety board
Delete the DCS parameters and reconfigure from scratch

Correct answer: Cycle power and confirm the robot is within the safe zone before resuming

DCS safety alarms require the robot to be physically moved into a safe position and a deliberate operator action (power cycle + confirmation) before the safety system resets.

Question 148: What FANUC setting ensures that the robot follows the programmed path accurately even at high speeds, rather than cutting corners between waypoints?

Setting OVR to 100%
Setting the termination type to FINE instead of CNT for critical path segments (Correct answer)
Increasing the motion group count
Enabling JOINT interpolation on all moves

Correct answer: Setting the termination type to FINE instead of CNT for critical path segments

A FINE termination type forces the robot to decelerate to a complete stop at each programmed position, ensuring the TCP passes exactly through that point before continuing.

Question 149: A FANUC robot's emergency stop circuit must be designed to which safety circuit category per IEC 60204-1 to achieve a safety-rated stop?

Category 4 — redundant, self-monitoring with high diagnostic coverage (Correct answer)
Category 1 — controlled stop then power removal
Category 0 — uncontrolled removal of power
Category 3 — redundant, self-monitoring circuit

Correct answer: Category 4 — redundant, self-monitoring with high diagnostic coverage

E-stop circuits on industrial robots typically require IEC 60204-1 Category 4 safety relay architecture with dual-channel redundancy and high diagnostic coverage to achieve PLe/SIL 3.

Question 150: What is the purpose of the FANUC Robot Interface (FRI) in a manufacturing cell?

To calibrate robot joints automatically
To manage robot power distribution
To provide a standardized API for external systems to command and monitor the robot (Correct answer)
To replace the teach pendant entirely

Correct answer: To provide a standardized API for external systems to command and monitor the robot

FANUC Robot Interface (FRI) provides a standardized software API allowing external applications and SCADA systems to issue commands and read status from the robot controller.

Question 151: What language is commonly used for programming CNC robots?

C++
Java
Python
G-code (Correct answer)

Correct answer: G-code

G-code is the most common programming language used for controlling CNC (Computer Numerical Control) machines, including many industrial robots. It consists of alphanumeric commands that instruct the machine on specific actions, such as tool movements, speeds, and operations. This standardized language allows for precise automation of manufacturing processes.

Question 152: What protective equipment should operators wear?

Loose clothing
No equipment
Casual clothes
Appropriate PPE (Correct answer)

Correct answer: Appropriate PPE

Operators working with CNC robots must wear appropriate Personal Protective Equipment (PPE) to safeguard against potential hazards. This typically includes safety glasses, gloves, steel-toed boots, and hearing protection, depending on the specific tasks and risks involved, ensuring their safety in the work environment.

Question 153: What is a safety fence in robotics?

Physical barriers (Correct answer)
A control panel
A software firewall
Robot housing

Correct answer: Physical barriers

In robotics, a safety fence refers to physical barriers that create a protective enclosure around the robot's work cell. These barriers are designed to prevent unauthorized personnel from entering the hazardous operational area while the robot is active. They serve as a critical engineering control to separate humans from dangerous robot movements, enhancing workplace safety.

FANUC Certified Robot Operator (FCR-O1)

The FANUC FCR-O1 certification validates competency in industrial robot operation, programming, integration, and troubleshooting using FANUC robotic systems including Teach Pendant operation and ROBOGUIDE simulation software.

153

Questions

180 min

Time Limit

80%

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