Yaskawa Large Capacity Sigma II Series - Manual (Page 55)

2 Basic Operation
2.4.4 Interface Circuits
2-28
„ 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.
„ Output Circuit Interfaces
Any of the following three types of SERVOPACK output circuits can be used. Form an input
circuit at the host controller that matches one of these types.
• Connecting to a Line-driver Output Circuit
Encoder serial data converted to two-phase (phase A and B) pulse output signals (PAO,
/PAO, PBO, /PBO), origin pulse signals (PCO, /PCO) and phase-S rotation signals
(PSO, /PSO) are output via line-driver output circuits that normally comprise the posi-
tion control system at the host controller. Connect the line-driver output circuit through
a line receiver circuit at the host controller.
See 2.5 Wiring Encoders 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.
3.3 k Ω
+24VIN
+24VIN
3.3 k Ω
/S-ON, etc.
Servoamp
24 VDC
50 mA min.
/S-ON, etc.
Servoamp
24 VDC
50 mA min.