Constant output from Encodes

[Jaydev K]

My encoders are giving a constant output.. on verifying using cDAQ it is giving constant 5V output...
What could be possible problem ?

 

[Electro nS]

usually the encoder use 5v pull up resistors ( built in or external , check datasheet to know for this encoder) . so that is natural if the encoder is not spinning .

if it is rotating and still 5v constant (checked by oscilloscope not multimeter) output on the pins , it might be broken (maybe supply connection problem ?!) , maybe the output transistor of the optical detector are shorted or some thing .

provide more details to get more help
regards.