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Appendix 16. Maintenance Alarm Code 1

Alarm Category

Alarm name

Alarm code

Bit

Comment

Maintenance Alarm 1

SBMU hardware failed

0x00000001

Bit 0

SBMU battery wiring failed

0x00000002

Bit 1

SBMU communication failed

0x00000004

Bit 2

Temperature wiring failed

0x00000008

Bit 3

Main negative relay failed

0x00000010

Bit 4

Main positive relay failed

0x00000020

Bit 5

Pre-charge fault

0x00000040

Bit 6

Fuse failure

0x00000080

Bit 7

Emergency stop

0x00000100

Bit 8

Current loop failed

0x00000200

Bit 9

Get total voltage failed

0x00000400

Bit 10

Abnormally high single-cell voltage

0x00000800

Bit 11

Very high voltage for a single cell

0x00001000

Bit 12

Very low voltage for a single cell

0x00002000

Bit 13

Very high temperature

0x00004000

Bit 14

Relay-controlled

0x00008000

Bit 15

Maintenance Alarm 1

High differential voltage between packs

0x00010000

Bit 16

Communication error with SBAU

0x00020000

Bit 17

Communication error with EMS

0x00040000

Bit 18

EMS/PCS forced control

0x00080000

Bit 19

Communication error with PCS

0x00100000

Bit 20

Communication error with the display

0x00200000

Bit 21

Fan failure

0x00400000

Bit 22

Insufficient number of packs

0x00800000

Bit 23

EMS emergency stop

0x01000000

Bit 24

EMS high voltage

0x02000000

Bit 25

Initialization blocked

0x04000000

Bit 26

Maintenance charging

0x08000000

Bit 27

Get High Voltage Box temperature fault

0x10000000

Bit 28

Passive balancing fault

0x20000000

Bit 29

Active balancing fault

0x40000000

Bit 30

SBCU-QF circuit breaker failure

0x80000000

Bit 31

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