Current feedback abnormality on axis XX. (Amplifier failure, power cable disconnected) (for E0x series controllers)

Error handling: Motor power OFF.
Error reset: Possible.

Description: This error occurs if the current command reaches or exceeds the standard value, but the feedback current remains almost zero between servo ON and brake release.

Servo
Servo FPGA
CPU
Feedback current
Servo board
U,V,W
Current detection
Ground
Circuit
Each motor
IPM
Robot main body
Power block
Controller

Main causes:

1. There is an open circuit in the U-phase, V-phase, or W-phase of the motor power cables. (An open-circuit check is normally not performed.)

2. There is a connection problem in the power cables of the controller harness, separate harness, or machine harness.

3. A problem with the power block.

Countermeasures:

1. Check the wiring for problems or open circuits, and replace the harness if necessary.

2. Replace the servo amplifier unit.