Using CUI AMT213A-V Encoder with ODrive

Support
1

Hi!
I am attempting to run a 24V BLDC Motor (P/N: 42BLS100-24-01) with a CUI Encoder attached (P/N AMT213A-V).
However, when following through the getting started documentation, when I get to the line where you run the calibration sequence (i.e. odrv0.axis0.requested_state = AXIS_STATE_FULL_CALIBRATION_SEQUENCE), the motor spins one direction four rotations and then stops.
When I run the dump_errors(odrv0) command, I get the following two errors:
‘’’
axis0
axis: Error(s):
ERROR_ENCODER_FAILED
motor: no error
encoder: Error(s):
ERROR_NO_RESPONSE
controller: no error
‘’’
I do not have a Z connection from the encoder, but I am sure it is set to not need it for the calibration anyway.
Is it possible that this encoder is not supported via ODrive?
If this is the case, is there any steps that I can take to make it compatible?

I appreciate the help in advance!

2

Double check that you’ve plugged the encoder into the correct motor channel.

Then, check to see if the encoder pins are getting a pulse train (quadrature input, active low).

3

Thank you for your response!
The Encoder is plugged into the proper motor channel (0).
As for the second point, I am currently working from home and do not have access to an oscilloscope. Is there any other way to test the encoder?
I have a multi-meter I can use if needed.

4

According to this datasheet, your encoder has an RS485 output, which is not supported by ODrive.