The encoder is not working, what is wrong?！

Troubleshooting the encoder:

 a) Ground and Positive is hooked up properly

 b) Channel O is NOT the output, its the marker pulse.  A is the primary output

 c) Ground and Positive have to come and go the same same source as the outputs.  You can not power the encoder from an independent source and have the output go somewhere completely different.

 d) Supply between 5 and 24 Volts.  It will work up to 30V.

 e) It is very cold.  Our encoders are specified to -20 degrees C, -40 is available upon request.

 f) For a current loop, hook it up as follows:  Red goes +24 Volts on the PLC and the black goes to an input on the PLC, NOT a ground.

 g) The encoders made in the UK have channel B leading channel A by 90 degrees.  If you are replacing a North American or European encoder with one of ours, swap over channel A and B, as theirs have channel A leading B by 90 degrees.

 h) DO NOT put 24V to the output channels, you will not get any signals, all you will get is a burnt output chip.

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