Bms Fault Codes (1St And 2Nd Generation Battery Pack) - JLG X390AJ-X14J Supplement Manual

SECTION 3 - TROUBLESHOOTING AND FAULT CODES
Table 3-1. BMS Fault Codes (1st and 2nd Generation Battery Pack)
Below are some examples of BMS error
• 02 - Unexpected Voltage
When one cell reaches 3650 mV, the BMS will dis-
connect the lithium pack and the system will
show the "UNEXPECTED VOLTAGE" error. This
could be caused by BMS failure to not identify
one cell or cannot connect it to the discharging
resistance.
3-2
Error Code
01 System Configuration Error
02 Unexpected Voltage
03 Unexpected Temperature
04 Overcurrent Discharge
05 Overcurrent Charge
06 Pre-charge Error
07 No 12 Volt Supplies
08 No 12 Volt Supplies
09 Battery Over temperature
10 Electronics Over temperature
11 Bad Temp Sensor Auto Shut Off Mode
12 All Temp Sensor Broken
13 Broken Temperature Sensor Detected
14 Grunding Fault Error
15 No Bootloader Error
16 Second Protection
17 Watchdog Error
18 Power Board Alarm
19 I2C Module Not Ready
20 I2C TX Error
21 I2C RX Error
22 I2C RX Error 2
23 AD Error
99 General Error
NOTE: When the display shows a BMS fault code, analyze the system
by connecting RamHino software to the machine.
Error Description
• 05 - Overcurrent Charge
If the lithium pack is warm, and one cell is at the
maximum voltage, and the battery charger is
suddenly connected for a while, one impulse of
current will be supplied to the pack. This could
cause the system to show the "OVERCURRENT
CHARGE" error.
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