7．Using the UPS monitoring software and contact signal
7-4 Contact signal
Contact Signal
You can develop your unique system based on the following specifications to automate the process at a power failure. You can perform
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
BU stays ON during a power failure.
●Low battery level signal output: BL
ON when a power failure occurs | |
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ON when the battery is low |
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.
●Battery Replacement Signal output (WB)
Goes ON when the test determines that battery replacement is necessary due to deterioration.
2. Signal input
●Input of the UPS Stop Signal (BS)
BS-COM
UPS stops
Stops the output of the UPS after the time period specified by the “power output stop delay time setting” has elapsed.
(1)When the "BS signal valid range setting" (setting switch 7 ) is set to OFF:
You can stop the output of the UPS by inputting the voltage signal (HIGH) that lasts at least 10 seconds from the outside.
(2)When the "BS signal valid range setting" (setting switch 7 ) 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.
See also
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