SECTION 3 - TROUBLESHOOTING AND FAULT CODES
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Sixth Group - Relays (only for 1st Generation
BMS)
The relays are inside the BMS and hence cannot
be accessed. However their status is helpful
when replacing the BMS in case of failure.
1.
Charge Switch: Charge contactor open/closed.
2.
Discharge Switch: Discharge contactor open/
closed.
3.
Pre-charge Switch: Pre-charge contactor open/
closed.
Seventh Group - Code and State
1.
Emergency Error Code (only for 1st generation
BMS): Emergency code present, see MS fault
codes.
NOTE:
Soft Reset means ok.
2.
BMS State: It is the status of the BMS. It is helpful
when replacing BMS in case of failure. For 2nd
generation BMS it is UNKNOW.
Eighth Group - BMS Status (only for 1st Genera-
tion BMS)
The following parameters are internal to the
BMS, hence cannot be controlled. However, their
status is helpful when replacing BMS in case of
failure.
1.
Power Control: Microcontroller supply ON/OFF.
2.
Heating Control: Heating Control ON/OFF.
3.
Overcharge (2nd prot): Secondary Protection
overcharge reached.
4.
Over discharge (2nd prot): Secondary protection
over discharge reached.
5.
Equalization active: Equalization active on mini-
mum one cell.
6.
Parameterization mode: Parameterization mode
ON/OFF.
7.
Super12V: +12 Volt confirmation.
8.
Supervision -12V: -12 Volt confirmation.
MAF12320
MAF12330
MAF12340
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