YASKAWA Sigma II Series User Manual page 47

Sigma II User's Manual
See 3.5 Wiring to an Encoder for connection circuit examples.
• Connecting to an Open-Collector Output Circuit
Alarm code signals are output from open-collector transistor output circuits.
Connect an open-collector output circuit through a photocoupler, relay, or line receiver
circuit.
Servo amplifier
end
Servo amplifier
end
Note: The maximum allowable voltage and current capacities for open-collector circuits are:
• Voltage: 30V
• Current: 20mA
• Connecting to a Photocoupler Output Circuit
Photocoupler output circuits are used for servo alarm, servo ready, and other sequence
output signal circuits.
Connect a photocoupler output circuit through a relay or line receiver circuit.
Servo amplifier end
Note: The maximum allowable capacities for photocoupler output circuits are:
• Voltage: 30V
• Current: 50mA
5 to 12V
DC
Photocoupler
P
0V
0V
5 to 12V
DC
P
0V
0V
DC
DC
5 to 12V
DC
Relay
0V
DC
DC
Servo amplifier
end
Servo amplifier end
P
3-19
Chapter 3: Wiring
5 to 12V
DC
Relay
0V
5 to 12V
DC
0V