PMW20
157
PMW20
156
53. Error ID: 02A79
The fault needs to be read by the upper computer for multiple definitions of instrument
fault codes.
Error Description: PUMP INC START
Cause A
Before the key switch is closed, the start sequence of the valve control switch or hoist
speed sensor is wrong.
Handling Method:
The pump startup sequence is not correct.
Possible reasons:
1) The lifting, tilting and other switches have been closed and before starting
the machine .
2) The operation sequence is wrong.
3) The wire connection is incorrect.
4) If a fault cannot be eliminated, the controller shall be replaced.
54. Error ID: 02A80
Error Description: FORW + BACK (Direction switch adhesion);
Cause A
The controller will always detect and alarm when requests from two directions run signals
at the same time.
Handling Method:
Possible causes:
1) Handle logic board failure.
2) The wire is broken.
3) A fault appears in the direction switch.
4) The operation is improper.
5) If a fault cannot be eliminated, the controller shall be replaced.
55. Error ID: 02A82
Error Description: ENCODER ERROR
Cause A
The controller detects that the two consecutive speed readings of the encoder are quite
different. Since the encoder inside the system is impossible to change the speed to a
large degree in a very short time, the encoder may fail.
Handling Method:
Encoder failure [Encoder lines of phase A (D1) and phase B (D4) are worn or broken].
Check the mechanical and electrical functions of the encoder; the alarm may be caused
by the interference of iron filings adsorbed by the encoder. If none of the above, replace
the controller.
Please note that manual operation may also cause that the controller displays the fault,
and thereby the forklift needs to be powered off to restart. For example:
1) The forklift bumps into an obstacle suddenly, making itself impossible to move.
2) A driver slams on the brakes when the forklift is moving at high speed.
3) The operation is improper.
4) If a fault cannot be eliminated, the controller shall be replaced.
SM-PMW202020001-EN
SM-PMW202020001-EN
Operation method of replacing the controller is the same as the Error ID 02A00.
Operation method of replacing the controller is the same as the Error ID 02A00.
Operation method of replacing the controller is the same as the Error ID 02A00.
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