4-8
Signal I/O Circuit Usage Examples
Remote ON/OFF(+)
Remote ON/OFF(-)
BU-1
UPS
side
Power relay
BU-2
Connecting cable
(twisted or shielded)
System side
UPS
side
Connecting cable
(twisted or shielded)
BS+
BS–
System side
OUT
24V
0V
PLC output circuit
COM
PLC
l
BUsignaloutputcircuitandconnection
circuitexample
l
RemoteON/OFFconnectioncircuitexample
l
BSsignalinputcircuitandconnection
circuitexample
4-9
Precaution When Using Signal Outputs
Notes
●
For any device connected to the signal output circuit, its rating must not exceed the rating
specied in signal outputs of “4.6 Signal I/O Rating” when turning on or off the signal output. (Add
a surge killer circuit as necessary.)