I/O Signal Interface Circuits - Omron OMNUC W Series Manual

4 Connectors

4.4.3 I/O Signal Interface Circuits

4.4.3 I/O Signal Interface Circuits
4
CN4 Connector Specifications
Part
Connector 10120-3000VE (20P)
Connector shell
10320-52A0-008
The following diagram shows an example of connections between a host controller and the
I/O signals for a DeviceNet Unit.
Sequence Input Circuit
The sequence input circuit connects through a relay or open-collector transistor circuit.
Select a low-current relay, otherwise a faulty contact will result
DeviceNet Unit
24 V DC
50 mA min.
3.3 kΩ
+24VIN
STOP
Relay
Sequence Output Circuit
Notch output signals are used for photocoupler output circuits. Connect the notch output
signals to relays or line receiver circuits.
5 to 24 V DC
DeviceNet
Unit end
0 V
Relay
Note
The maximum allowable voltage and current capacity for photocoupler output circuits are as follows
• Voltage: 30 V DC max.
• Current: 50 mA DC max.
Signal Manufacturer
Sumitomo 3M Ltd.
−
24 V DC
50 mA min.
DeviceNet
Relay
Unit end
4-12
.
DeviceNet Unit
+24VIN 3.3 kΩ
STOP
Open Collector
5 to 12 V DC
P
0 V
Line Receiver
: