BYD PMW20 - Page 75

PMW20
149
39. Error ID: 02A71
Error Description: WRONG REM MEN
Cause A
RAM register error.
Handling Method: Replace the controller.
Operation method is the same as the Error ID 02A00.
44. Error ID: 02A72
Error Description: VMN LOW
Cause A
During start-up test, if the high-side voltage of the MOS tube is less than 66% of
the capacitor voltage, it will alarm.
Handling Method:
If the error occurs once it is turned on, check:
1) The connection inside the motor (coil resistance).
2) Check whether the three-phase wire connection of the motor is correct.
3) Whether there is electric leakage in the motor connecting to the frame or the coil of
the motor disconnects.
If the motor wiring is normal, it is the problem inside the motor and replace the controller.
Operation method is the same as the Error ID 02A00.
Cause B
Motor running test: run the motor, turn on the bridge, and test the motor voltage feedback;
if it is less than the command value, it will enter the fault state. (The error occurs when the
motor is running)
Handling Method:
If the error occurs when the motor is running, check:
1) Whether the motor wiring is normal.
2) Whether there is electric leakage in the motor connecting to the frame or the coil of
the motor disconnects.
3) Check whether the suction of the master contactor is firm and whether the contact is
worn.
PMW20
148
38. Error ID: 02A71
Error Description: EEPROM KO
Cause A
If a fault is found in the storage area of parameters, the forklift will stop moving.
Handling Method:
If the fault still exists after the electric lock is closed repeatedly, the logic card shall be
replaced. If the fault disappears, parameters stored previously will be replaced by wrong
ones and thereby being reset. Please refer to the Chapter Two, Parameter Adjustment
Instructions.
According to the finalized parameter table, change each one to consistent. (Get the
latest parameter table from BYD technicians)
COMBI ACX
V018 Parameter
Table.xlsx
SM-PMW202020001-EN
SM-PMW202020001-EN