Motor Controller Fault

What does 104 mean?

A fault has been detected within the motor controller. This is a warning only, indicating a non-critical issue that might escalate if not addressed.

• Internal fault in the motor controller module (e.g., sensor error, minor logic issue).
• Intermittent communication loss with the motor controller.
• Temporary over-current or over-temperature condition.

Click steps to track your progress.

1. 1

   Verify incoming supply voltage to the motor controller against specified nominal values at the input terminals.

2. 2

   Inspect motor power cables and feedback wiring for physical damage, loose connections, and proper shielding or grounding.

3. 3

   Check motor and drive parameters (e.g., motor nominal current, voltage, speed, acceleration/deceleration ramps) within the controller configuration against the motor nameplate and system specifications.

4. 4

   Inspect cooling fans and heat sinks on the motor controller for obstructions, dust buildup, and ensure proper operation to maintain adequate heat dissipation.