Expanding The Signal Card; Precautions And Notes On The Use Of The Contact Signal - Omron POWLI BU50XS Instruction Manual

7. Example of the use of the Contact Signal circuit
● Example of BU signal output circuit and
the connected circuit
UPS side
5KΩ

8-3 Expanding the signal card

You can expand the signal card into the signal card expansion slot at the rear of the UPS.
● Contact Signal card (model: SC06)
8-4 Precautions and notes on the use of the
Contact Signal
When connecting a device that generates counter electromotive force such as a relay to the signal output
circuit, connect a diode to prevent counter electromotive force across the relay.
● After shutdown processing and recovery from a power failure, the UPS automatically restarts and sup-
plies power. If you do not want to start the connected devices, turn off their switch in advance.
● The UPS monitoring software allows you to disable automatic restart.
External connection
7
8
To port on PC
BU
5
GND
Explanation
8. Using the UPS monitoring software and Contact Signal
● Example of BS signal input circuit and the
connected circuit
BS
GND
Connecting cable
(twisted or shielded)
Notes
39
1K TLP521
12V
1.2K
To port on PC
C2458
GND
System side