2 Installation and Wiring
27
▼ Connection of external control output
The external control output circuit supports the photo MOS relay output. Plus common connection or
minus common connection can be established. Shown below is the equivalent circuit of the external
control output circuit.
CAUTION
The external control output circuit features a maximum rated voltage of 30 VDC and
a maximum rated current of 100 mA per point.
Inside of CSD-709
+Vext
Plus common connection
0.047
COM2
0.047
Minus common connection
OUT
1 ~ 6
COM2
Surge protector
Surge protector
Load
Load
+Vext
+Vext Inside of CSD-709
OUT
1 ~ 6