FANUC Fundamentals of CNC Robotics Operation 4

Question 1

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

Accepted Answer

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

Answer

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

Question 2

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

Accepted Answer

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

Answer

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

Question 3

Which FANUC I/O type is used for high-speed synchronization signals between the robot and an external CNC machine?

Accepted Answer

Robot I/O (RI/RO)

Answer

Robot I/O (RI/RO) points are physically located on the robot arm and are designed for low-latency, high-speed signals.

Question 4

In a FANUC system configured for coordinated motion, what is the 'master' robot's role?

Accepted Answer

It provides the reference frame that the 'slave' robot tracks during synchronized motion

Answer

The master robot defines the motion path, and the slave robot moves relative to the master's frame in real time.

Question 5

What is the purpose of the FANUC Payload Estimation function (PAYLOAD IDENTIFY)?

Accepted Answer

To automatically calculate tool mass and center of gravity from measured joint torques

Answer

PAYLOAD IDENTIFY moves the robot through specific motions and uses torque feedback to estimate tool mass and CoG.

(FANUC) Fuji Automatic Numerical Control Robotics Certification Practice Test