8. Connections of I/O Interface
8.4 Connecting with Card-sized I/O Card
125
(5) Input/output circuit
(a) Input circuit
The HR361 input circuit is a sink type, and the HR371 input circuit is a source type.
(Machine side)
(Machine side)
HR361
HR371
GND
GND
+24V
CF30
2.2k
Ω
2.2k
Ω
Control
circuit
+24V
CF30
2.2k
Ω
2.2k
Ω
GND
Control
circuit
Sink type
Source type
No COM pin is available used only for input; it is shared with 24VDC or GND.
CAUTION
Do not apply voltages to the connectors other than voltages indicated in this manual. Failure to
observe this could cause the devices to rupture or damage, etc.
Incorrect connections could cause the devices to damage. Connect the cable to the designated
connector.
Do not connect or disconnect the connection cables between each unit while the power is ON.