Search found 3072 matches

by tblough
Sat Mar 16, 2024 7:40 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Actualizacion EMCO VCM 300
Replies: 158
Views: 25739

Re: Actualizacion EMCO VCM 300

Which part of the instructions is giving you problems? 1. Set speed on VFD to 1/3 of rated speed 60Hz = 20Hz 2. Set acceleration/deceleration time 1.5 seconds (01-12, 01-13) 3. Set 11-00 = 2 , Inertia auto-tuning 4. View 11-01 during tuning 5. Press forward and reverse until the inertia is stable. T...
by tblough
Fri Mar 15, 2024 6:59 pm
Forum: Centroid Acorn CNC Controller
Topic: Auto Spindle
Replies: 4
Views: 190

Re: Auto Spindle

Is your spindle encoder showing any errors on the PID screen?
by tblough
Fri Mar 15, 2024 6:57 pm
Forum: Centroid Acorn CNC Controller
Topic: Auto Spindle
Replies: 4
Views: 190

Re: Auto Spindle

The 100% key commands 100% of programmed (via an Snnnn) command, or 50% of maximum speed if running in manual spindle mode.
by tblough
Fri Mar 15, 2024 6:54 pm
Forum: Centroid Acorn CNC Controller
Topic: Fuji servo drives with acorn.
Replies: 22
Views: 1487

Re: Fuji servo drives with acorn.

You might want to recheck the Encoder expansion board documents. I believe it supports differential encoder INPUTS for reading encoders. I do not believe it supports differential quadrature OUTPUTS to control a servo motor drive.
by tblough
Fri Mar 15, 2024 7:13 am
Forum: Centroid Acorn CNC Controller
Topic: Fuji servo drives with acorn.
Replies: 22
Views: 1487

Re: Fuji servo drives with acorn.

Marc spotted in the manual where these drives can be configured for step and direction input. Theoretically, all that you would need to do to get them to work with Acorn, would be to create a single-ended to differential converter for the inputs. There are TTL logic chips available that can do this.
by tblough
Wed Mar 13, 2024 11:57 am
Forum: Acorn CNC Plasma
Topic: Inaccuracy issue
Replies: 6
Views: 179

Re: Inaccuracy issue

Just because the DRO returns to zero, does not mean you are not losing steps. Unless you have connected the drive alarm signals to Acorn (and configured the inputs accordingly) , the Acorn has no way of knowing if your drives and motors may have missed steps. You need to set up an indicator on the a...
by tblough
Wed Mar 13, 2024 7:16 am
Forum: Centroid Acorn CNC Controller
Topic: "Z compensation" on 4x8 foot CNC router
Replies: 13
Views: 366

Re: "Z compensation" on 4x8 foot CNC router

IIRC, the upgrade from Pro to Ultimate is only $299.
by tblough
Tue Mar 12, 2024 3:38 pm
Forum: Centroid Acorn CNC Controller
Topic: SSD for Acorn Six and CNC12
Replies: 2
Views: 112

Re: SSD for Acorn Six and CNC12

WD SSDs are more than good enough. The recommendation is more to NOT buy the $5.99 special from Alibaba.
by tblough
Tue Mar 12, 2024 7:13 am
Forum: Centroid Acorn CNC Controller
Topic: Spindle Encoder
Replies: 2
Views: 124

Re: Spindle Encoder

5V differential quadrature is correct, but 1000 or 1024 lines is better for a spindle. Especially if you have a spindle that runs over 6000 rpm. You can exceed the encoder bandwidth with too many lines per rev. You don't mention your spindle rpm, so you need to check that you don't exceed the encode...