Check the voltage of Vdc/GND
terminal
Make sure voltage of Vdc/GND in
proper range
replace the driver with a new one
Short of driver output wire
Short of driver output wire, whether
short circuit to PG ground or not
Assure driver output wire no short
circuit, assure motor no damage
Adjust motor wiring sequence
Cut off driver output wiring, make
srv_on available and drive motor,
check whether over-current exists
replace the driver with a new one
abnormal setting of control
parameter
Adjust parameter to proper range
abnormal setting of control
command
Check control command whether
command changes too violently or
not
Adjust control command: open
filter function
Content: IPM over-current
Short of driver output wire
Short of driver output wire, whether
short circuit to PG ground or not
Assure driver output wire no short
circuit, assure motor no damage
Adjust motor wiring sequence
Cut off driver output wiring, make
srv_on available and drive motor,
check whether over-current exists or
not
replace the driver with a new one
replace the driver with a new one
abnormal setting of control
parameter
Adjust parameter to proper range
abnormal setting of control
command
Check control command whether
command changes too violently or
not
Adjust control command: open
filter function
Content: driver over-heat
the temperature of power
module have exceeded
upper limit
Check driver radiator whether
the temperature is too high or
not
Strengthen cooling conditions, promote
the capacity of driver and motor, enlarge
acceleration/deceleration time, reduce load
Check actual load if the value of
Decrease load, adjust limit parameter
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