YASKAWA SGMGV - Sequence Input Circuit

3.4 Examples of Connection to Host Controller
3-33
3
Wiring and Connection
3.4.2 Sequence Input Circuit
CN1 connector terminals 40 to 47 are explained below.
The sequence input circuit interface connects through a relay or open-collector transistor circuit. Select a low-
current relay otherwise a faulty contact will result.
Note: The 24 VDC external power supply capacity must be 50 mA minimum.
For SEN input signal circuit, refer to 5.9.2 Standard Connection Diagram and Setting the Absolute Data
Request Signal (SEN).
The SERVOPACK’s I/O circuit uses bidirectional photocoupler. Select either the sink circuit or the source cir-
cuit according to the specifications required for each machine.
Note: • The Connection examples in 3.2.4 to 3.2.6 show sink circuits.
• The ON/OFF polarity differs between when a sink circuit is connected and when a source circuit is connected.
Relay Circuit Example Open-collector Circuit Example
Sink Circuit Source Circuit
Input Signal Polarities Input Signal Polarities
Signal Level
Voltage
Level
Contact Signal Level
Voltage
Level
Contact
ON
Low (L)
level
0 V Close ON
High (H)
level
24 V Close
OFF
High (H)
level
24 V Open OFF
Low (L)
level
0 V Open
3.3 kΩ
/S-ON, etc.
SERVOPACK
24 VDC
+24VIN
+24 VIN
3.3 kΩ
/S-ON, etc.
SERVOPACK
24 VDC
SERVOPACK input
24 V
+
−
24 V
+
−
SERVOPACK input