I have checked as per your instructions, unfortunately not found any error in "active machine fault". But following errors found in error history.
15-19 at 292.86 Hrs
11-19 at 292.52 Hrs
35-19 at 287.07 Hrs
77-21 at 271.78 Hrs
76-21 at 271.78 Hrs
76-13 at 267.48 Hrs
24-36 at 267.48 Hrs
72-21 at 267.48 Hrs
Turtle to Rabbit switching also showing on ground control panel when changing it via toggle switch from platform. Further more I've disconnect the positive wire from 2 speed solenoid coil and supply the positive voltage separately from the jumper wire then drive it in high speed mode, it travels fine which means the voltage is not coming from the circuit in normal operation. Do you have any idea please advise.