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.

SERVO-

PACK end

Photocoupler

5 to 12 VDC

SERVO-

PACK end

5 to 24 VDC

Relay

SERVO-

PACK end

5 to 12 VDC

SERVO-

PACK end

5 to 24 VDC Relay

SERVO-

PACK end

5 to 12 VDC