CTEK (VMC), OAK, DELTA A2, ECMA motors
Posted: Wed May 25, 2022 3:07 am
Hi All,
Our project is a CTEK KM80D VMC, made in Taiwan, it has 5mm pitch ball screws directly driven by 1KW motors on the three axes. Z has a counter weight. Spindle is 7.5 HP 8000 rpm driven by RICH VFD. Machine came without servo drives and controller. See link in signature for images and build progress
I have bought the OAK board, and was going to originally run DMM DYN4 servo drives and signal converters to try and re-use the servo motors. The plan now is to run Delta A2 1.5KW drives and motors (not purchased yet)
Three questions for now.
1. Does anyone have a trusted source for Delta components in China? Preferably someone they have used?
2. Delta A2 drives and motors come in 200 or 400 volts, what are the pros and cons either way?
3. The standard schematics sent with Oak show VFD connected direct to live and not through a contactor, original machine was through a contactor, is that a better route?
Thanks
Charles
Our project is a CTEK KM80D VMC, made in Taiwan, it has 5mm pitch ball screws directly driven by 1KW motors on the three axes. Z has a counter weight. Spindle is 7.5 HP 8000 rpm driven by RICH VFD. Machine came without servo drives and controller. See link in signature for images and build progress
I have bought the OAK board, and was going to originally run DMM DYN4 servo drives and signal converters to try and re-use the servo motors. The plan now is to run Delta A2 1.5KW drives and motors (not purchased yet)
Three questions for now.
1. Does anyone have a trusted source for Delta components in China? Preferably someone they have used?
2. Delta A2 drives and motors come in 200 or 400 volts, what are the pros and cons either way?
3. The standard schematics sent with Oak show VFD connected direct to live and not through a contactor, original machine was through a contactor, is that a better route?
Thanks
Charles