Emerson 10-30kVA, 208V 2.3.2Maintenance Bypass Cabinet Interface, 2.3.3BCB Box Interface

Electrical Connections

2.3.2Maintenance Bypass Cabinet Interface

J26 and J30 are the MBC interface.

Table 2 Maintenance bypass cabinet interface

Position	Name	Description
J26.1	T_IT1	Input transformer over temperature (N.C.)
J26.2	AUX_I	Reserved
J26.3	+12V	+12V Power
J26.4	GND	Power Ground
J30.1	FUSE	Reserved
J30.2	F_FAN	Fan Fail Alarm (N.C.)
J30.3	T_OT1	Output Transformer Overtemperature (N.C.)
J30.4	AUX_O	Reserved

1 - Must be configured by software before becoming active

NOTE

All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded for maximum runs between 82 and 164 feet (25-50m), respectively.

2.3.3BCB Box Interface

J10 is the BCB box interface.

Table 3 BCB box interface

Position	Name	Description
J10.1	DRV	BCB Driver Signal - Reserved
J10.2	FB	BCB Contact State
J10.3	GND	Power Ground
J10.4	OL	BCB On-Line - Input - This pin will become active when
		BCB interface is connected. (N.O.)

NOTE

All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded for maximum runs between 82 and 164 feet (25-50m), respectively.

NOTE

If BCB interface is connected, a jumper needs to added between Pin 3 and Pin 4.

Figure 9 Jumper connection for BCB interface

UPS Monitoring Board

J10

OL

GND

FB

DRV

Aux – N.O.

Aux – N.O.

Battery Circuit Breaker

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