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
◆
Contact the agent for
technical support.
◆ Check the input supply;
◆
Reconnect the driver board
and the control board
26-core cable;
◆
Check the bus voltage;
◆
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;
◆
Control board and keypad are
faulty;
◆
The cable connecting the
control board and the drive
board and the operation panel
breaks.
◆
Buffer resistance of the drive is
damaged;
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
◆
Ask for the supplier and
adjust the setting running
time.
◆
The actual running time
is longer than the internal
setting running time.
18
E.End
Running
time reached
17
◆
Braking circuit fault or
damage to the brake pipes;
◆
External braking resistor
is not sufficient.
◆
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
