I/O Circuits - YASKAWA SGD7S Product Manual

4.5 I/O Signal Connections

4.5.4 I/O Circuits

4.5.4

I/O Circuits

Sequence Input Circuits
 Photocoupler Input Circuits
This section describes CN1 connector terminals 6 to 13.
Note: The 24-VDC external power supply capacity must be 50 mA minimum.
The SERVOPACK input circuits use bidirectional photocouplers. Select either a sink circuit or
source circuit according to the specifications required by the machine.
Note: The connection examples in 4.5.3 I/O Signal Wiring Examples on page 4-34 are for sink circuit connections.
24 V
+
Photocoupler
4-36
Examples for Relay Circuits
SERVOPACK
Ω
4.7 k
24 VDC
+24VIN
/HOME or other signal
Sink Circuits
−
SERVOPACK input side
Photocoupler
Switch
Photocoupler
Switch
Input Signal Polarity
Internal Signal Level
ON
OFF
Examples for Open-Collector Circuits
24 VDC
24 V
+
Internal
signal
level
Internal
signal
level
Photocoupler
Low level
High level
SERVOPACK
Ω
4.7 k
+24VIN
/HOME or other signal
Source Circuits
−
SERVOPACK input side
Photocoupler
Switch
Photocoupler
Switch
Input Signal Polarity
Internal Signal Level
ON
OFF
Internal
signal
level
Internal
signal
level
Low level
High level