Messages

21

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 22, 2018, 03:10:01 PM »

Hi Hood

So using 1000rpm as an example as this is what my drive max velocity is set to. The calculation is 1/60 =0.017 seconds. Should I set my drive to reach max speed in 17ms also as opposed to 30ms?

Cheers
Mick

22

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 21, 2018, 01:40:16 PM »

Hi Hood

Cheers on both comments. Sort of makes sense. Need to read it a few more times had a busy day.

Mick

23

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 21, 2018, 02:37:26 AM »

Hi
Can anyone explain the acceleration setting in Mach.
E.g. 1000/s/s
What exactly does that equate to?
Is it 1000/60/60 Which would be 0.27 seconds to reach velocity target.
My drive is factory set to reach desired velocity in 30mili secs.

Mick

24

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 18, 2018, 02:17:56 PM »

Great news

Autotuned the CSMIO and bingo. All working spot on. The first autotune was done with the servo drive on a low max rpm. Everything worked great until I tried to raise the velocity in Mach to a sensible speed. Loads of vibration. Adjusting the max rpm in the drive made no difference.

Set the drive to max rpm of 1000 which give me 5m minute and re-autotuned the CSMIO. No issues at all. Home switches work and runs programmes through the MDI no problem.

I presume the tuning uses the limits set within the drive?

Thanks, Craig and Hood for spending time on this. Its well appreciated.

I'll fit the X-axis now. LOL

Cheers
Mick

25

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 18, 2018, 10:39:43 AM »

Good News

Striped the Cn1 plug back to check the encoder wiring and I had connected A+ to pin 20 instead of pin 22

The DRO in Mach and in the PID are now working correctly.

Bad News.

Still unable to home the axis. The home switch is not being seen. If I run a program through the MDI Mach gets to the desired position and stops but the motor continues moving.?

Mick

26

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 18, 2018, 06:23:18 AM »

Hi

Adjusting the DAC offset has solved the motor running away.  Now stands still. Set this at 0.04

With the drive disabled, turning the motor shaft gives no reading either in the CSMIO PID or Mach. The axis digits flicker from 0 to 1 but nothing more. 

Mick 

27

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 17, 2018, 05:19:24 PM »

Hi
Will check in the morning.
Mick

28

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 17, 2018, 03:25:37 PM »

Hi

Its impossible to give commands through the MDI when the axis is moving as soon as its enabled. I've tried autotuning the CSMIO and there is a step error but the axis position is always 0. I believe this is because the axis has not been set to 0 (Homed)

I need to eliminate the axis moving once enabled to be able to try any movements through the MDI. Whilst autotuning the axis is going mad jumping around with large movements unlike what it did when tuning the DC drives. This couldn't be anything to do with steps per revolution being way off could it?

Mick

29

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 17, 2018, 02:45:06 PM »

Hood/ Craig
Tried inverting the encoder signals and still the same. Any thoughts?

I cant index the machine. The limit switches work fine but when I send the axis home it's ignoring them and the motor doesn't stop.
I also can't control the speed of homing. Even if I have it at 1% its way too fast. I had to put the max velocity to approx 100mm min to slow it down. Then its still fairly fast.

Mick  

30

General Mach Discussion / Re: CS Labs CSMIO/P-A

« on: September 17, 2018, 07:35:42 AM »

Hi Craig
Yes that's what they are set to now.
Mick