Using The Contact Signal - Omron POWLI BX75XS2 Instruction Manual

Table of Contents

6. Using the Contact Signal

You can develop your unique system based on the following specifications to automate the process at the

power failure.

Your can perform power-failure or closing procedure of the system by detecting the Backup Signal and the

Battery Low Signal, or receive failure notification by detecting the Trouble Signal.

You can stop the UPS by inputting the UPS Stop Signal from the system, and remote control start and stop of

the UPS by using the Remote ON/OFF Signal.

1. Signal output

The UPS has 4 kinds of output signals. The output circuit consists of an open collector circuit using a photo

coupler (a kind of electronic switch).

● Backup Signal output: BU

Backup Signal reverse output: BU

BU stays ON (BU OFF) during a power failure.

● Battery Low Signal output: BL

Goes ON when the battery becomes weak during the

Battery Mode.

● Trouble Signal output: TR

Goes ON when an internal failure of the UPS occurs.

2. Input of the UPS Stop Signal (BS)

Stops the output of the BX75XS2 after the time period specified by the "power output stop delay time

setting" (setting switches 1 and 2 ) has elapsed.

(1) When the "UPS Stop Signal setting" (setting switch 4 ) is set to OFF:

You can stop the output of the BX75XS2 by inputting the voltage signal (HIGH) that lasts at least 10

seconds from the outside.

(2) When the "UPS Stop Signal setting" (setting switch 4 ) is set to ON:

You can stop power output by inputting the voltage signal (HIGH) that lasts at least 0.01 second (10

ms) from the outside that is accepted only during backup.

"4-7 Changing the setting of the functions" ➛ Pages 23 and 24