Schneider Electric 3BZ2, iFBZ, FBZ2 Trip cause indication and fault records, Control terminals

EOCR-i3BZ/iFBZ/3BZ2/FBZ2

EOCR-i3BZ / iFBZ : Intelligent Digital Over-Current, Earth Fault Relay with built-in ZCT,

EOCR-3BZ2 / FBZ2 : Economic Digital Over-Current, Earth Fault Relay with built-in ZCT

Trip cause indication and fault records

3 fault records including the trip cause and 3phase currents are stored in a non-volatile memory.

Trip Indication

	Trip		Indication after trip with UP/ DN button pressing
Trip Cause	Indication	Contents of Indication	L1 LED on	L2 LED on	L3 LED on
Over current		OC Trip caused by r-phase current
Phase loss		Phase Loss caused by r-phase lost
Reverse Phase		Phase reversal trip
Stall		Stall trip during motor starting
		caused by s-phase current
Jam		Jam trip during motor running
		caused by r-phase current
Imbalance		Imbalance trip caused by t-phase
		current
Under Current		Under current trip caused
		by s-phase current
Earth Fault		Earth Fault(Earth leakage) trip with
		Earth Fault current indication
Limitation of auto-Reset		In 30minutes, the number of	For emergency restart, manual reset by pressing
		auto-reset exceeds the pre-set count	ESC clears the reset counter to zero.

Control terminals

A type
		GR		OL		OL	COMM
A1	A2	57 58	95	96	97	98	V- D1 D0 S
							Modbus Communication
Control Power							OL NO Output
GR NO Output							OL NC Output

C type
AL /UL /TO	OL / GR				COMM
A1 A2 07 08 95	96	97	98	V-	D1 D0	S
Control Power						Modbus Communication
AL/UL/TO						OL/GR NO/NC Common Output

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