Commissioning and Trial Run
‑131‑
Fault Name Panel
Display
Possible Cause Solution Fault Type
Overcurrent during
deceleration
E03.04
1. A grounding fault or
short circuit exists in
the output circuit of
the AC drive.
2. The control mode is
SVC, and motor auto‑
tuning is not
performed.
3. The deceleration
time is too short.
4. The overcurrent stall
prevention
parameters are set
improperly.
5. The power supply
unit with a braking
unit and the braking
resistor are not
installed.
6. The AC drive suffers
external interference.
1. Check the motor and make sure that the
motor circuit is not shorted or open.
2. Set the motor parameters according to
the motor nameplate and perform motor
auto‑tuning.
3. Increase the deceleration time (F0‑18).
4. Ensure that the overcurrent stall
prevention function is enabled (F3‑19 =
1). The overcurret stall prevention
current (F3‑18) is too high. Adjust it
between 120% and 150%. The overcurret
stall prevention gain (F3‑20) is too low.
Adjust it between 20 and 40.
5. Replace the power supply unit with one
with a braking unit and install a braking
resistor.
6. Check whether the fault current reaches
the overcurret stall prevention current
(F3‑18) by viewing the fault log. If not, the
fault is possibly caused by external
interference. You need to find out the
external interference source and rectify
the fault. If no external interference
source is found, the driver board or Hall
device may be faulty. Contact the
manufacturers to replace them.
Axis fault
E03.05 Axis fault
E03.06 Axis fault
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