- 143 -
Control board or operating
panel is faulty.
Rectifier bridge is damaged.
2
"510-H" is
displayed while
power-on
Wire between drive board
and control board is in poor
Re-plug the 30-core cable
Related components on
control board are damaged
Contact the agent.
The motor or motor cable is
short circuited to ground.
The hall is damaged.
The mains voltage is too
low.
3
"FU23" is
displayed at
power-on.
Motor or motor output cable
is short circuited to
Ground.
Use a megger to measure
insulation resistance
Of motor and motor cable.
The AC drive is
damaged.
Contact the agent
4
The display is
normal while
power-on. But
after
running, “-510-
H” is displayed
and the drive
stops
Immediately.
The cooling fan is
damaged or locked-rotor
occurs.
Replace the fan.
Short circuit exists in wiring
of control terminals.
Eliminate short circuit fault in control
circuit wiring.
5
FU14 (IGBT
overheat) is
detected
frequently.
The setting of carrier
frequency is too high.
Reduce carrier frequency (P0-
15).
The cooling fan is damaged,
or ventilation is clogged.
Replace the fan or clean the
ventilation.
Components inside the AC
drive are damaged
(Thermistor or others).
Contact the agent
No.
Error
Reason
Possible Solution
6
The motor does
Motor and motor wires
Check that wiring between AC
