The controller provides two TBEN terminals that allow the input of external encoders. They support A, B and Z phases as inputs, and perform counts based on 12Vdc. In addition, phase S can be used as a start sensor for the conveyor.
To ensure maximum input accuracy, observe the following:
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Use shielded, twisted pair cables to reduce noise. Pair each signal line with GND.
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Connect the cable shield to the ground terminal inside the controller.
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In the case of S phase inputs, connect a pull-up or pull-down resistance according to the sensor type(NPN/PNP) to prevent floating.
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Keep the encoder wiring as short as possible to reduce noise.
Selecting the Encoder Output Type
An NPN open collector output encoder with an external pull-up resistor is recommended.
Encoder and Sensor Connection Examples
The figure below shows a sample encoder and sensor configuration, so refer to it while establishing connections.
Connecting Incremental Encoder A, B, Z phase
Connecting NPN Sensor
Connecting PNP Sensor
