MotoCrane RADICAL Error 129: System Over-Current Error
Current through the motors has reached a level that can damage the system. Causes include extreme moves, an unbalanced load, a blocked boom, or a mix of these. If hard movement did not trigger it, there may be a short circuit that needs diagnosis and service.
Error: red icon, repeated beeps until acknowledged. Fix before you continue.
What to do
- Stop using the axis while the error is active.
- Recheck payload and counterweight balance.
- Clear anything blocking the boom.
First, always: check every cable and the COM and Power LEDs on each module. Axis: system. Applies to MotoCrane RADICAL.
Code 129 on ULTRA is different: ULTRA Error 129: Lift Joystick Initialization Failure.
Print the RADICAL code card (PDF)