I am working on an CHNC2 Lathe retrofit to OAK with LS L7C drives. I have the drives figured out and will post the wiring and parameters.
Previous thread on LS drives: https://centroidcncforum.com/viewtopic. ... ive#p66557
PLC resource: https://centroidcncforum.com/viewtopic.php?f=64&t=9140
This lathe has a Fanuc AC Servo Spindle motor for the Spindle and I am trying to drive it using a 10hp GS4-2010 drive.
The Spindle motor seems to be a little different from normal 3 phase motors I have used before.
When I first tried to run the spindle, the drive would output about 2 hz at 40 amps and fault out. It would never ramp up in speed.
I switched to P2.11 to 1 of SVC Sensorless Vector and now I can run the spindle at any speed. The odd thing is I measure the full rated current going from the drive to the motor (31amps) as set by parameter P0.01.
I have attached the data plate on the spindle motor. It shows the continuous and 30 min ratings.
Does anyone have any tips on how I should setup this combo?
This motor is really old and I can't find any information but I found something similar. The Alpha 6 on page 49 looks like a newer version. https://www.nexinstrument.com/assets/im ... 06B-08.pdf
Fanuc AC Servo Spindle Motor with GS4 drive for CHNC2 Retrofit.
Moderator: cnckeith
-
- Posts: 78
- Joined: Tue Apr 17, 2018 8:58 am
- Acorn CNC Controller: Yes
- Allin1DC CNC Controller: No
- Oak CNC controller: No
- CNC Control System Serial Number: none
- DC3IOB: No
- CNC11: No
- CPU10 or CPU7: No
Re: Fanuc AC Servo Spindle Motor with GS4 drive for CHNC2 Retrofit.
I swapped back to the original Fanuc Spindle servo drive and managed to get it working. Its surprising it still works after 35 years.
Retrofitting the spindle drive can be a problem for future me.
Retrofitting the spindle drive can be a problem for future me.
-
- Posts: 7334
- Joined: Wed Mar 03, 2010 4:23 pm
- Acorn CNC Controller: Yes
- Allin1DC CNC Controller: Yes
- Oak CNC controller: Yes
- CNC Control System Serial Number: none
- DC3IOB: Yes
- CNC11: Yes
- CPU10 or CPU7: Yes
- Contact:
Re: Fanuc AC Servo Spindle Motor with GS4 drive for CHNC2 Retrofit.
yeah many of those old fanuc spindle motors were not 'normal' motors as you say.
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html