CX23-R DIO encoders
Notes on wiring encoder inputs:
- Always check encoder data sheet for maximum supply voltage. Supplying 12-volt transducer power to a 5-volt encoder may damage it.
- Transducer power is limited to 3 W. Check encoder data sheet to ensure the encoder and any necessary pull-up resistors use less than 3 W total.
- The inputs are ground referenced, not differential. If using a differential output encoder like RS422 only connect the positive A, B and Z outputs or only the negative A, B and Z outputs to reverse active state. For applications requiring long cable runs or more than 200K pulses per second, a 120 termination should be placed as close to the input as possible to dampen reflections.
- Check encoder data sheet for output low and high voltages and set thresholds accordingly.
For applications requiring long cable runs or more than 200K pulses per second, use the differential wiring diagram below. Place the 120-Ohm termination as close to the input as possible to dampen reflections.