Check input power supply or
wiring
Replace with higher-rating
controller
Check input power supply or
wiring
Replace with higher-rating
controller
Broken wires in the output cable
Check the wiring and
installation
Broken wires in the motor
winding
Instantaneous over-current of
controller
Refer to over-current remedy
Cooling fans of controller
stopped or damaged. Obstruction
of ventilation channel
Replace cooling fan and
clear the ventilation channel
Too-high ambient temperature
Decrease the ambient
temperature if possible
Loose cables or terminals
Inspect and tighten the wire
and terminals
Abnormal control PCB board
Improper baud rate setting
Push STOP/RESET to reset
and ask for support