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8. Using the UPS monitoring software and Contact Signal
7. Example of the use of the Contact Signal circuit
●
Example of BU signal output circuit and
the connected circuit
●
Example of BS signal input circuit and the
connected circuit
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
GND
7
8
BU
5
UPS side
External connection
To port on PC
5K
Ω
Explanation
●
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.
Notes
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.
BS
C2458
GND
12V
1K
TLP521
GND
To port on PC
Connecting cable
(twisted or shielded)
System side
1.2K