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21. Error ID: 02A53
Error Description: STBY I HIGH
Cause A
The signal output from the current sensor, detected by the micro-controller, exceeds what
is allowed by the inactive current.
Handling Method:
Since the fault is irrelevant with peripheral components, just replace the controller.
The operating method is same as that of the error code 02A00.
23. Error ID: 02A58
Error Description: Initialize Error
Cause A
When the controller is initialized, the amplifier measures a voltage value beyond the
allowable range. When the voltage signal value is greater than 3V or less than 2V, the
error will appear.
Handling Method: recommend to check the following items.
1) Connection inside the motor.
2) Connection among motor power cables.
3) Drain current between the motor and the forklift housing.
4) If the connection of the motor is good, check the controller and replace it.
The operating method is same as that of the error code 02A00.
24. Error ID: 02A54
Error Description: LOGIC FAILURE#1
Cause A
Under a 24V system, the controller detects that the voltage is over 45V or below 9V; while
under a 45V system, it is over 65V or below 11V.
Handling Method:
1. Check whether a short circuit appears in the circuit system, such as DC-DC, brake coil,
or check whether the input power of the controller is connected well.
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18. Error ID: 02A49
Error Description: The lifting and lowering buttons are activated at the same time.
Cause A
The lifting and lowering buttons are activated at the same time.
Handling Method 1:
1) Check whether the lifting and lowering buttons are activated at the same time.
2) Re-operate the lifting and lowering buttons.
1) Check whether the lifting and lowering switches of the handle switch is broken.
2) Check whether the circuit of the lifting and lowering switches is short-circuited.
If the above is irrelevant, replace the controller. The operating method is same as
that of the error code 02A00.
19. Error ID: 02A51
TILLER OPEN
Cause A
When the handle limit switch S3 outputs to the controller pin C6 and is disconnected for
30 seconds, the contactor will be power off and the controller will give a reminder that the
handle has been disconnected.
Handling Method: This error will not be displayed on the display. When the handle limit
switch S3 switch is closed again, the error will disappear automatically and the contactor
will be firm. If the error persists, check whether the handle limit switch and controller pin
C6 are normal for eliminating the outer error.
20. Error ID: 02A52
Error Description: Current Sensor Error
Cause A
The main controller cannot detect the current of the oil pump motor, and the power line of
the oil pump motor is not connected.
Handling Method:
Check whether it is correct in the connection among power lines of the oil-pump motor; if
yes, replace the controller.
The operating method is same as that of the error code 02A00.
SM-PMW202020001-EN
SM-PMW202020001-EN
Cause B
It is blamed for faults of lifting and descending switches.
Handling Method 2:
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