Alarm Set

Alarm Set

Inverter Alarm

Protection type alarm

# Protection type	Field	Bit
Mains Lost	FaultFlag1	BIT0
Grid Voltage Fault	FaultFlag1	BIT1
Grid Frequency Fault	FaultFlag1	BIT2
DCI Fault	FaultFlag1	BIT3
ISO Over Limitation	FaultFlag1	BIT4
GFCI Fault	FaultFlag1	BIT5
PV Over Voltage	FaultFlag1	BIT6
Bus Voltage Fault	FaultFlag1	BIT7
Inverter Over Temperature	FaultFlag1	BIT8
Bat OV	FaultFlag3	BIT2
Backup OV	FaultFlag3	BIT3
Bus Volt Low	FaultFlag3	BIT4
Hard Fault	FaultFlag3	BIT5
Backup OP	FaultFlag3	BIT6
Inverter OV	FaultFlag3	BIT7
Inverter OF	FaultFlag3	BIT8
Inverter OC	FaultFlag3	BIT9
Meter Comm Fault	FaultArmFlag1	BIT2
BMS Comm Fault	FaultArmFlag2	BIT0

Fault type alarm

# Fault type	Field	Bit
N-PE Check Fault	FaultFlag1	BIT9
SPI Fault	FaultFlag2	BIT1
E2 Fault	FaultFlag2	BIT2
GFCI Device Fault	FaultFlag2	BIT3
AC Transducer Fault	FaultFlag2	BIT4
Relay Check Fail	FaultFlag2	BIT5
Internal Fan Fault	FaultFlag2	BIT6
External Fan Fault	FaultFlag2	BIT7
SCI Fault	FaultArmFlag1	BIT0
FLASH Fault	FaultArmFlag1	BIT1

BMS Alarm

Field: BMS_Error_Code

Bit	Hexadecimal	Decimal	Fault Name
BIT0	0x00000001	1	BAT Voltage Sensor Fault
BIT1	0x00000002	2	BAT Temperature Sensor Fault
BIT2	0x00000004	4	BAT Internal Comm Fault
BIT3	0x00000008	8	Input OV Fault
BIT4	0x00000010	16	Input Reversed Fault
BIT5	0x00000020	32	BAT Relay Checking Fault
BIT6	0x00000040	64	Cell Damaged Fault
BIT7	0x00000080	128	Shutdown Circuit Fault
BIT8	0x00000100	256	BMIC Fault
BIT9	0x00000200	512	BAT Internal Bus Fault
BIT10	0x00000400	1024	Self-checking Fault
BIT11	0x00000800	2048	Safety Function Fault
BIT12	0x00001000	4096	ISO Fault

Field: BMS_Warn_Code

Bit	Hexadecimal	Decimal	Fault Name
BIT0	0x00000001	1	Cell UV - L3
BIT1	0x00000002	2	Cell OV - L3
BIT2	0x00000004	4	Cluster UV - L3
BIT3	0x00000008	8	Cluster OV - L3
BIT4	0x00000010	16	Charge UT - L3
BIT5	0x00000020	32	Charge OT - L3
BIT6	0x00000040	64	Discharge UT - L3
BIT7	0x00000080	128	Discharge OT - L3
BIT8	0x00000100	256	Charge OC - L3
BIT9	0x00000200	512	Discharge OC - L3
BIT10	0x00000400	1024	Battery Module UV - L3
BIT11	0x00000800	2048	Battery Module OV - L3
BIT12	0x00001000	4096	Terminal OT - L3
BIT13	0x00002000	8192	-
BIT14	0x00004000	16384	Abnormal Leakage - L3
BIT15	0x00008000	32768	-

Field: BMSAlarmCode

Bit	Hexadecimal	Decimal	Fault Name
BIT0	0x00000001	1	Cell UV - L1
BIT1	0x00000002	2	Cell OV - L1
BIT2	0x00000004	4	Cluster UV - L1
BIT3	0x00000008	8	Cluster OV - L1
BIT4	0x00000010	16	Charge UT - L1
BIT5	0x00000020	32	Charge OT - L1
BIT6	0x00000040	64	Discharge UT - L1
BIT7	0x00000080	128	Discharge OT - L1
BIT8	0x00000100	256	Charge OC - L1
BIT9	0x00000200	512	Discharge OC - L1
BIT10	0x00000400	1024	Battery Module UV - L1
BIT11	0x00000800	2048	Battery Module OV - L1
BIT12	0x00001000	4096	Terminal OT - L1
BIT13	0x00002000	8192	Abnormal Fan - L1
BIT14	0x00004000	16384	Abnormal Leakage - L1

Field: BMSWarning

Bit	Hexadecimal	Decimal	Fault Name
BIT0	0x00000001	1	Cell UV - L2
BIT1	0x00000002	2	Cell OV - L2
BIT2	0x00000004	4	Cluster UV - L2
BIT3	0x00000008	8	Cluster OV - L2
BIT4	0x00000010	16	Charge UT - L2
BIT5	0x00000020	32	Charge OT - L2
BIT6	0x00000040	64	Discharge UT - L2
BIT7	0x00000080	128	Discharge OT - L2
BIT8	0x00000100	256	Charge OC - L2
BIT9	0x00000200	512	Discharge OC - L2
BIT10	0x00000400	1024	Battery Module UV - L2
BIT11	0x00000800	2048	Battery Module OV - L2
BIT12	0x00001000	4096	BMU Offline - L2
BIT13	0x00002000	8192	BMCU Offline - L2
BIT14	0x00004000	16384	SN Change of Module - L2
BIT15	0x00008000	32768	Abnormal Change of Cluster Voltage - L2
BIT16	0x00010000	65536	Abnormal Cluster △V - L2
BIT17	0x00020000	131072	Abnormal Module △V - L2

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✨ For Example

For example, when your subscription to the real-time data on a device sends FaultFlag1=7, which has binary expression 0000_ 0111, this means that it complies with the following alarm rules:

• Mains Lost
• Grid Voltage Fault
• Grid Frequency Fault