Power unit: Undervoltage when opening the brake

What does A30054 mean?

The power supply voltage for the brake has dropped below 21.6V (24V - 10%) when the brake is commanded to open. The alarm value (r2124) indicates the detected voltage. This undervoltage can prevent the brake from opening properly, leading to mechanical binding, potential damage to the brake mechanism, or a failure to start the motor.

Complete Troubleshooting Guide

1. 1

   Check the 24V supply voltage to the brake for stability and correct value.

2. 2

   Ensure the 24V supply can maintain voltage under load conditions.