Omron BN75R User Manual

7. Using the UPS monitoring software and contact signal
49
An additional contact signal card can be installed in the contact signal input/output slot on the back of
the UPS.
Contact signal card (model number: SC07), sold separately
Contact Signal
Youcandevelopyouruniquesystembasedon thefollowingspecicationstoautomatethepro-
cess at a power failure. You can perform power-failure processing by allowing the system to detect
the backup signal and also perform system shutdown processing by allowing the system to detect
the Low battery level signal. Also, by inputting the backup stop signal from the system, you can
stoptheUPSwithasufcientbatteryleveltoprepareforthenextoccurrenceofapowerfailure.
7-4-1. 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
Stays ON during backup operation at a power
failure.
●
Low battery level signal
output: BL
Goes ON when the battery becomes weak
during backup operation at a power failure.
●
Trouble Signal output: TR
Goes ON when an internal failure of the UPS
occurs or when the battery life counter
expires.
●
Battery Replacement Signal output (WB)
Goes ON when the test determines that bat-
tery replacement is necessary due to deterio-
ration or when the battery life counter goes
off-scale.
BU-COM ON when a power failure occurs
BL-COM ON when the battery is low
TR-COM ON when a power failure occurs
WB-COM ON when battery deterioration is detected
7-4-2. Signal input
●
Input of the UPS Stop Signal (BS)
 WhentheBSsignalisON(High),theoutputoftheUPSisstoppedafterthetimeperiodspecied
in advance has elapsed. The following settings are available on the LCD.
(1) BS Valid Range: “Setting” - “Dry Contact” - “BSsignal ValidRange”
•
Always enabled : The BS signal is received either in Commercial Power Mode or Battery Mode.
•
Enabled during Battery Mode: The BS signal is received only in Battery Mode.
(2) BS Delay Time: “Setting” - “Dry Contact” - “BSsignal Delay Time”
You can set the amount of time between when the BS signal is received and when the output
of the UPS is stopped.
BS-COM UPS stops
7-4 Contact signal

Omron BN75R Specifications

General

Brand	Omron
Model	BN75R
Category	UPS
Language	English