FANUC FANUC System Integration & Peripheral Devices 2 — Questions and Answers
Question 1: 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 verify encoder battery voltage
- To check network communication latency
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 2: Which FANUC peripheral interface standard supports hot-swappable end-of-arm tools and automatic program and I/O routing changes?
- FANUC Intelligent Robot Interface (iRIS)
- Tool Change Interface (TCI) with automatic configuration (Correct answer)
- CNC-Link Protocol
- PROFIBUS DP Class 1
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 3: When configuring FANUC EtherNet/IP adapter mode, the robot controller acts as a:
- Target (slave) device that the scanner (PLC) reads and writes (Correct answer)
- Scanner (master) that polls other devices
- Bridge between two separate EtherNet/IP networks
- Proxy for legacy DeviceNet 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 4: What is the function of the FANUC KAREL language compared to Teach Pendant (TP) programming?
- KAREL is a structured text language enabling complex logic, file I/O, and string handling not possible in TP (Correct answer)
- 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
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 5: A FANUC robot's UF (User Frame) is primarily used to:
- Define a coordinate system relative to a workpiece or fixture so programs are portable (Correct answer)
- Set the robot's home position
- Configure safety zone boundaries
- Specify the weight of the end-of-arm tool
Correct answer: Define a coordinate system relative to a workpiece or fixture so programs are portable
User Frames define custom coordinate systems attached to fixtures or parts, making TP programs easily reusable when the fixture is moved or replicated.
Question 6: Which signal type should be used in FANUC to pause a robot program and wait for a PLC confirmation before proceeding to the next step?
- Wait DI[n]=ON instruction in the TP program (Correct answer)
- Timer instruction with a fixed delay
- JOINT_TORQUE_LIMIT signal
- Alarm code 1234 reset trigger
Correct answer: Wait DI[n]=ON instruction in the TP program
The WAIT DI[n]=ON instruction pauses program execution until the specified digital input goes high, allowing handshaking with a PLC or other device.
FANUC FANUC System Integration & Peripheral Devices 2
In FANUC's DCS (Dual Check Safety) system, what is the primary purpose of a Cartesian Position Check?