Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

6.3 Examples of I/O Signal Connections(2) Sequence Input Circuit InterfaceCN1 connector terminals 40 to 47 is explained below.The sequence input circuit interface connects through a relay or open-collector transistor circuit. Select a lowcurrentrelay otherwise a faulty contact will result.Relay Circuit ExampleSERVOPACKOpen-collector Circuit ExampleSERVOPACK24 VDC +24VIN3.3 kΩ24 VDC +24VIN3.3 kΩ/S-ON, etc./S-ON, etc.Note: The 24 VDC external power supply capacity must be 50 mA minimum.INFOFor SEN input signal circuit, refer to 8.4 Absolute Encoders.(3) Sink Circuit and Source CircuitThe SERVOPACK’s I/O circuit uses a bidirectional photocoupler. Select either the sink circuit or the source circuitaccording to the specifications required for each machine.Sink CircuitSource Circuit24 V24 VI/O powerI/O powersupply+ − SERVOPACK inputsupply+ −SERVOPACK input6(4) Output Circuit InterfaceThere are three types of SERVOPACK output circuits:(a) Line Driver Output CircuitCN1 connector terminals, 33-34: phase-A signal, 35-36: phase-B signal and 19-20: phase-C signal areexplained below.Encoder serial data converted to two-phase (phases A and B) pulse output signals (PAO, /PAO, PBO, /PBO),zero-point pulse signals (PCO, /PCO), and the amount of phase-S rotation signal are output via line-driveroutput circuits. Normally, the SERVOPACK uses this output circuit in speed control to comprise the positioncontrol system at the host controller. Connect the line-driver output circuit through a line receiver circuit atthe host controller.6-17