Elu 860 CNC router

[davidjt]

I have Elu 860 CNC router.
A transistor (L6203) in power board blew up and I replaced it.
Now when I move the y axis it runs for approx 6 inchs then stalls.
I have taken the motor off the lead screw and run it.
Sometime with no load on it it stalls and doesnt rotate.

Is this a problem with motor drive or problem with motor?

If problem with motor does any one know where to get a Sanyo Denki Step-Syn 103-815-7 motor.

David

[James Newton]

Sounds like more than just that one transistor blew in the driver. Make a table of readings of the voltage at each of the outputs, then single step the driver, and make the same readings again. If there is a difference, it will show up quickly. Generally, it's worth it to replace all the drive transistors as a set.

[davidjt]

Thanks for the response.
Measured the voltages, they are same after single step.
Measured them many times and they always are the same after any move.

I assume it must be the motor.