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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Emerson 10-30kVA Maintenance Bypass Cabinet Interface, BCB Box Interface, Maintenance bypass cabinet interface

10-30kVA specifications

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