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4 bcb input port, 5 battery warning output dry contact interface, J6 j7 – OPTI-UPS MD120L User Manual

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Chapter 1 Installation

17

J5

GEN

+24V

AUX-N.O.

AUX-N.O.

发电机

Fig 1-15 Diagram of status interface and connection of generator

Table 1-5 Description of maintenance bypass switch and output switch status interface

Position

Name

Purpose

J5.1

+24V

+24V power supply

J5.2

GEN

Connection status of generator

J5.3

GND

Power ground

1.7.4 BCB Input Port

J6 and J7 are the ports of BCB. The port diagram is shown in fig 1-16, and description is shown in

table 1-6.

B

C

B

_

D

R

V

B

C

B

_

C

O

N

T

J6

J7

B

C

B

_

O

N

L

+24V

+24V

+24V

Fig 1-16 BCB Port

Table 1-6 Description of BCB port

Position

Name

Description

J6.1

BCB_DRV

BCB actuating signal, provide the actuating signal of +18V, 20mA

J6.2

BCB_CONT BCB contact status, connect with the normally open signal of BCB

J7.1

GND

Power ground

J7.2

BCB_ONL

BCB on-line

–input (normally open) , BCB is on-line when the signal

is connecting with GND

1.7.5 Battery Warning Output Dry Contact Interface

J8 is the output dry contact interface, which outputs the battery warnings of low or excessive

voltage, when the battery voltage is lower than set value, an auxiliary dry contact signal will be

provided via the isolation of a relay. The interface diagram is shown in fig 1-17, and description is

shown in table 1-7.

Generator

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