Contact Signal - Omron POWLI BU60RE Instruction Manual

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 specifi cations to automate the process 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
suffi 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
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 battery replacement is necessary due to
deterioration.
7-4-2. Signal input
Input of the UPS Stop Signal (BS)
Stops the output of the UPS after the time period specifi ed by the "power output stop delay time
setting" has elapsed.
(1) When the "BS signal valid range setting" (setting switch 5 ) 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 5 ) is set to ON:
You can stop power output by inputting the voltage signal (HIGH) that lasts at least 0.01 sec-
ond (10 ms) from the outside that is accepted only during backup.
See also
54
output: BL
"4-4 Changing the setting of the functions" "4-4-2. UPS operation mode settings"
→ Page 32
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
BS-COM UPS stops