46
5.2 Common Faults and Solutions
You may come across the following faults during the use of the AC drive. Refer
to the following table for simple fault analysis.
No
Fault
Possible Causes
Solutions
◆
Check the input supply;
◆
Check the bus voltage;
◆
Reconnect the driver board
and the control board
26-core cable;
◆
Contact the agent for
technical support.
◆
There is no power supply to the
AC drive or the power Input to
the AC drive is too low;
◆
The power supply of the switch
on the AC drive board is faulty;
◆
The rectifier bridge is damaged;
◆
Buffer resistance of the drive is
damaged;
◆
Control board and keypad are
faulty;
◆
The cable connecting the
control board and the drive
board and the operation panel
breaks.
1
No display at
power-on
◆
Re-connect the driver board
and the control board 26-
core cable;
◆
Contact the agent for
technical support.
◆
The
cable between the driver
board and the control board is
not good;
◆
Related components on the
board are damaged.
is displayed at
power-on
2
◆
adjust the setting running
time.
Ask for the supplier and
◆
is longer than the internal
setting running time.
The actual running time
18
E.End
Running
time reached
17
◆
damage to the brake pipes;
◆
External braking resistor
is not sufficient.
Braking circuit fault or
◆
◆
Check the braking unit and
replace the braking pipe;
Increase the braking resistor.
Braking unit
fault
E.BrE
No Fault
Code
Possible Causes
Solutions
Fault
Type
Troubleshooting
