YASKAWA SGD7S-R70A Product Manual page 60

This section describes CN1 connector terminals 40 to 47. The circuits are connected through
relay or open-collector transistor circuits. If you connect through a relay, use a low-current
relay. If you do not use a low-current relay, a faulty contact may result.
Examples for Relay Circuits
24 VDC
+24VIN
E.g., / -ON
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.
Sink Circuits
24 V
−
ERVOPACK input ide
+
witch
witch
Input Signal Polarity
Photocoupler
ON
OFF
Sequence Output Circuits
Refer to the following manual for details on sequence circuit outputs.
Σ-7-Series Σ-7S SERVOPACK with Analog Voltage/Pulse Train References Product Manual (Manual No.: SIEP
S800001 26)
ERVOPACK
Ω
4.7 k
S_Analog
Photocoupler
Internal
ignal
level
Photocoupler
Internal
ignal
level
Internal Signal Level
Low level
High level
3.2 I/O Signal Connections
Examples for Open-Collector Circuits
ERVOPACK
Ω
4.7 k
24 VDC +24VIN
E.g., / -ON
S_Analog
Source Circuits
24 V
−
ERVOPACK input ide
+
Photocoupler
witch
Photocoupler
witch
Input Signal Polarity
Photocoupler Internal Signal Level
ON
OFF
3.2.3 I/O Circuits
Internal
ignal
level
Internal
ignal
level
Low level
High level
3
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