6 Contact signal
6-1 Contact signal
BU5002R/BU3002R/BU3002RH
119
6
6-1-7 Examples of use of contact signal circuits
●
Example of BU signal output
circuit and the connected circuit
●
Example of BS signal input
circuit and the connected circuit
To port
on PC
4.7 K
Inside of
UPS
External
circuit
* C1, C2: 0 pF to several thousand pF
(Consider the capacity according to
the operating environm ent.)
+12 V
1 K•
C2
C1
+5 V
From port on PC
12 V
1 K
1.2 K
System side
Connecting cable
(twisted or shielded)
●
Example of remote ON/OFF
Example of remote
ON/OFF
UPS side
Remote ON/OFF (+)
Remote ON/OFF (-)
6-1-8 Precautions and notes for the use of the contact
signal
Notes
When connecting a device that generates a back electromotive force such
as a relay to the signal output circuit, connect a diode to prevent the back
electromotive force on both ends of the relay.
Explanation
When power is restored after the unit stopped automatically during a power
outage, the unit automatically restarts and supplies power. If you do not
want to start the connected devices, turn OFF their switches or set the auto
startup setting after recovery from power outage ([3. Settings] - [Boot
Settings] - [Auto Reboot] on the
LCD) to “Disable”. (See page 80)
A relay output type contact signal card is available for separate purchase.
It can be loaded into the option slot on the back of the UPS.
For details refer to our website. (https://www.oss.omron.co.jp/ups/)
• Contact signal card (relay output type)
Model number: SC08 (sold separately)
