SI CU: Brake Control Error

What does 201630 mean?

The drive's Safety Integrated (SI) function on the Control Unit (CU) has detected a brake control fault, leading to a STOP A reaction. Causes vary widely depending on the fault value, encompassing issues such as incorrect parameter p1278, missing or broken brake connections, ground faults in the brake cable, short-circuits in the brake winding, or internal faults within the CU's brake control circuit or its communication with the Motor Module.

Complete Troubleshooting Guide

1. 1

   Perform a Safe Torque Off (STO) cycle by selecting and de-selecting it, then carry out a POWER ON (power off/on) for all affected components.

2. 2

   Check parameter p1278 for correct settings, verify the brake connection, and inspect for wire breakage or ground faults in the brake cable. Test brake release with p1278=1 and p9602/p9802=0.

3. 3

   If relevant to the fault value, check for short-circuits within the brake winding.

4. 4

   Investigate the brake control circuit of the Control Unit and the DRIVE-CLiQ communication between the CU and Motor Module for errors.

5. 5

   Ensure the motor cable is correctly shielded to prevent EMC issues, and inspect the control circuit of the Motor Module for defects.