Interface Circuits - YASKAWA MECHATROLINK Sigma 2 Series User Manual

3.3.4

Interface Circuits

This section shows examples of SERVOPACK I/O signal connection to the host controller.
Sequence Input Circuit Interface
The sequence input circuit interface connects through a relay or open-collector transistor cir-
cuit. Select a low-current relay, otherwise a faulty contact will result.
24 VDC
50 mA min.
Output Circuit Interfaces
Any of the following two types of SERVOPACK output circuits can be used. Form an input
circuit at the host controller that matches one of two types.
• 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.
SERVOPACK
end
SERVOPACK
end
Note: The maximum allowable voltage and current capacities for open-col-
• Voltage: 30VDC max.
• Current: 20 mA DC max.
• Connecting to a Photocoupler Output Circuit
SERVOPACK
3.3 k
+24 VIN
/DEC, etc.
5 to 12 VDC
Photocoupler
0V 0V
5 to 12 VDC
0V
0V
lector output circuits are as follows:
3-9
SERVOPACK
24 VDC
3.3 k
50 mA min.
+24 VIN
/DEC, etc.
5 to 12 VDC
0V
0V
3.3 I/O Signals
3
Relay