Brake Abnormal
Fanuc · R-30iB Mate + Mate Plus Robot
What does SRVO-018 mean?
An excessive current is detected in the motor brake circuit, and the ALM LED (SVALM) on the 6-Axis servo amplifier is illuminated. This can be caused by a short circuit or ground fault in the brake wiring, or an optional brake release unit being left active while attempting robot motion.
Repair Steps
- 1
Check the robot connection cable (RMP1, RP1) and the internal cable of the robot and motor brakes connected to CRR88 connector on the 6-Axis servo amplifier for a short-circuit or grounding fault. If found, replace the failed part.
- 2
Check the cables and motor brakes connected to CRR65A, CRR65B connector on the 6-Axis servo amplifier for a short-circuit or grounding fault. If found, replace the failed part.
- 3
If using an optional brake release unit, turn off its on/off switch and cycle the controller power.
- 4
Replace the 6-Axis servo amplifier.