ABB Knowledge Point 11: Robot Zero Point Calibration

Course Video

Content Overview

Significance of Updating the Counter

To keep the internal position data in the controller consistent with the data from the motor encoder feedback. Only when both sets of data are consistent does it indicate that the robot is in a normal state.

Calibration of the mechanical zero point is required for the robot in the following situations:

When a new robot is purchased and the manufacturer has not performed the zero point calibration.
When the battery is low and needs to be replaced.
When the robot body or controller is replaced.
When the counter data is lost.

Each of the six axes of the IRB 120 robot body has a zero point mark, as shown in Figure 4.7. Manually align the zero point marks of each axis of the robot, record the current counter data, and the controller will automatically calculate the zero point position of that axis, using it as the reference for controlling each axis.