I encountered a strange problem with XA2 module.
For some reason the VREF voltage fluctuate between 5 to 5,5Volts and due to that all the VIN-channels turns on simultaneously around 0 to 30% and the crane moves without touching levers.
Replacing XA2 module didn't solve the problem.
Is it possible that there could be some grounding issues in VREF circuit or has the MD3 display unit any affect on XA2 VREF circuit?
Customer support service by UserEcho