BYD EPS14Pi, User Manual

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MAINTENANCE OF VEHICLES EPS14Pi
USER MANUAL
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ELECTRICAL SCHEMATIC DIAGRAM
TABLE OF FAULT CODES
FAULT CODE
ALARM
REMEDY
02A00
BATTERY LOW
If parameters of “BATTERY CHECK” are not set as “0”, the fault will be reported, and the
lifting function will be locked when the battery power is less than 15% and no bars are
displayed on the instrument. Please charge in time. If the battery is electric, check whether
the value of“ADJUST BATTERY” on the controller is consistent with that of battery voltage.
EPS RELE OPEN
DATA
ACQUISITION
If the fault is activated to show that it is in a phase of data acquisition, please wait until data
is acquired completely.
Don’t operate during date acquisition. Restart after data is acquired.
CHECK UP
NEEDED
When the maintenance time is up, check it.
Revise CHECK UP DONE into ON. Shut down and restart
02A01 WRONG CONFIG
Clear EEPROM
02A08
WATCHDOG
Watchdog circuit will be activated before software starts. Under working or standby states,
the signal of watchdog is ineffective (warning state). Fault analysis: a broken state has been
seen in the watchdog hardware circuit or the microcontroller output part. If both of the above
two are irrelevant with outer parts, replace the controller.
FLASH
CHECKSUM
After the key is turned on, the value of flash checksum on the program is positive. If it is
negative, the signal of fault will appear. Fault analysis: It is blamed for the flash memory of
microcontroller. The flash checksum may be broken, or the program stored suffered from
damage. Try to reset the pro-gram of the logic card. If the fault continues, it should be
blamed for the microcontroller. Replace the controller.
WATCHDOG#2
Cause: The Watchdog circuit will be activated before software starts. Under working or
standby states, the signal of watchdog is ineffective (warning state).
Fault analysis: A broken state has been seen in the watchdog hardware circuit or the
microcontroller output part. If both of the above two are irrelevant with outer parts, replace the
controller.
02A10
WRONG RAM
Find faults when performing tests for main ram: the registration address is “DIRTY”.
The fault will limit the operability of forklifts. Fault analysis: Close the key switch and open
again. If the fault still exists, replace the controller.
02A11
STALL ROTOR
1.Motor stalls.
2.Fault appears in the encoder of the motor.
3.Wiring harnesses is broken or fault is found in the wiring.
4.The encoder is disabled in its power supply.
02A13
EEPROM KO
1. Restart the electric lock. Please replace the controller if the fault still exists.
2. Restart the electric lock. Please reset parameters if the fault disappears.
Perform CLEAR EEPROM. If the fault disappears, change the parameters
as set values singly. Instead, try to replace the controller.
PARAM RESTORE
If CLEAR EEPROM has been performed, change the prompt parameters of fault as a default
value.
If not, there is a fault inside the controller.
02A16 AUXOUTPUT KO Check whether the coil of electromagnetic brake is normal. If not, replace the controller.
02A17 LOGIC FAILURE
#3
The output circuit of coil suddenly disconnects during operation.
A fault is found in the current protection function of the logic card. Replace the
controller.
02A18 LOGIC FAILURE
#2
1. Check whether the circuit of motor power line is normal, including the safety device of the
controller. 2. Check the parameter list.
3. If it is bot blamed for the above two, replace the controller.
02A19 LOGIC FAILURE
#1
1. Check battery voltage.
2. Check whether ADJUST BATTERY of the controller is consistent with actual voltage of
the battery.
02A20
HEIGHT SENS
OPEN
02A21
CHARGE
SAFETY
When it is charging, any movement of forklifts will report the fault. It can protect forklifts from
being operated when charging.
02A22
HEIGHT SENS LOCK
LOCK
RESET CUTBACK 1
Charge the battery.
Check if the EPS controller is faulty.
TABLE OF FAULT CODES
OM- EPS14Pi 2019001-EN