Yaskawa MP940 User Manual
Page 214
System Startup
5.6.4 Interface Circuits
5-42
• 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.
Note: The maximum allowable voltage and current capacities for open-col-
lector output circuits are as follows.
Voltage: 30 VDC max.
Current: 20 mA DC max.
• 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.
Note: The maximum allowable voltage and current capacities for photocou-
pler output circuits are as follows.
Voltage: 30 VDC max.
Current: 50 mA DC max.
0V
P
0V
SERVO-
PACK end
Photocoupler
5 to 12 VDC
0V
0V
SERVO-
PACK end
5 to 24 VDC
Relay
0V
0V
P
SERVO-
PACK end
5 to 12 VDC
0V
SERVO-
PACK end
5 to 24 VDC Relay
0V
P
SERVO-
PACK end
5 to 12 VDC