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Messages - Johann

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1
CS-Lab / Re: CSMIO IP/S MPG Jog issue
« on: March 30, 2014, 04:37:21 AM »
I dont understand about your brake, how is that configured?

Hood

The brake is driven from the servo, Delta ASDA-B2. At or below a certain slow speed the brake is engaged after each step, at faster motion it stays open. I guess engaging is related to the pulse length. Now at the higher 0,1 MPG speed it sounds like the brake is engaging more often.

2
CS-Lab / Re: CSMIO IP/S MPG Jog issue
« on: March 27, 2014, 11:10:56 AM »
Just tried 2.2 plugin on the wee lathe and its fine. As said I use servos so probably not a perfect comparison.
Hood

I use servo's too and although you might not hear a difference it is obvious that the steps are "shorter". At certain revs of the hand wheel it causes a motion as if attached to a rubber band. Also on my Z axis the brake is making more noise compared to before.

3
CS-Lab / Re: CSMIO IP/S MPG Jog issue
« on: March 27, 2014, 07:32:27 AM »
Similar issue here. Wheel causes jerky motion, all other runs smooth.
Will there be a firmware update?

4
It has been a while..

Have the machine running for a couple of months now but only started to machine some more parts with it for about a month now.
Putting the machine back together took some time. Decided not to touch the outside but the inside was painted white with an industrial coating.
Here the back panel can be seen,

 

This is what it looks like now,



Still need to make a better arrangement for the controls and keyboard but it is functional.

Started to make some parts,





And trying to get to know Mach3 a bit better. Making good progress IMO.

5
So how do you use the Orient pins, for example, do you have to short pins 25 and 26 to command Orient to the VFD?

And what happens, for example, when speed is achieved? Does an internal relay closes pins 1 and 2?

Dan

Yes when you connect 25 and 26 the spindle will position itself and when the position is reached the orient achieved pins 22 and 23 are closed. when you open 25-26 the orient procedure is stopped and 22-23 will open again. While 25-26 is closed the motor is powered and keeps the spindle locked in position.

This weekends effort,

Machined and sand(glass)blasted the operator panel,



Hope to receive the buttons this week.

6
Thanks  a lot Johann!

Why are the output pins in pairs? Are they relays or what?

Dan

They are contacts. With the BP the signals run from 24v. The inputs are NO or NC over a relay.





Looked faster than that but thats still a very reasonable rapid :)
Are you set up in imperial units?
Hood

I'm using metric. The speed isn't bad and OK for now although, from the info I can find, the BP412 specs show much higher speeds.

7
Dan,

Fanuc type is A06B-6055-H103 with a A20B-1001-0120 orient board.

Connections of CN1 are,

1,2 Speed achieved
3,4 Zero speed
7,8 Ready
11,12 Alarm
22,23 Orient achieved
25,26 Orient
31,32 Analog speed 31=0V 32=0-10V
14,45,46 Spindle start and direction 14=common, 45=FWD, 46=REV
47,48 E-Stop

Hood,

Rapids are set to 275IPM now. Accel needs some further adjustment still. 

8
Hi Johann,

Would you share the Fanuc connector pinout?

Dan

I'll post the info tomorrow.

9
I am interested how you got the Fanuc VFD to work?

Dan


Biggest issue was that I didn't have info about the connector. Which wire did what. A huge puzzle.
The Fanuc uses 0-10v speed, CW and CCW direction, Alarm, Drive ready, Speed achieved and zero speed, Orient and orient achieved and E-stop.


"Eventually I decided to rebuild to Mach3. A bit of a gamble. Not much experience with Mach nor G-code but I thought it was nice challenge."

Wow, if your doing this level of work, and not much experience, then I will LOVE to see your work, when you become experienced!!!  Your work, is EXCELLENT, Great Job!!

I have never used the CSMIO/IP-x, series of controllers.......  but the way Hood is going on and on about them, maybe I should try one!!

Again, really nice work!!

Scott

Thank you Sir!

I only worked with Heidenhain dialog so far. Have been working with a 410 for a couple of years. The 308's 2500 is a bit older dialog and missing some cycles compared to the 410. Both can do G-code (ISO) but I never bothered. G-code is new for me. I think it has been 6-7 month since I started using, or testing better said, Mach3 and most has been configuring Mach itself. I have been working with computers all my live and learned an older programming language some 30 years ago so I'm not totally unfamiliar with the matter but a lot is forgotten over the years.. From the electronics side I do have some recent experience wiring cars, retrofitting standalone engine management systems in this case, and in the past I did maintenance on printing presses. So also here not totally unfamiliar. Never rebuild a wiring cabinet to this extend though. I did have some help but wanted to do the actual wiring myself.  

A small video clip of the first run.

<a href="http://www.youtube.com/v/omeSv9P2cy0" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">http://www.youtube.com/v/omeSv9P2cy0</a>

(There a loud air compressor running in the background)

10
I believe you  :)

But I had to make a decision and noticed this writing on CSLabs's site,

Quote
Step/dir control type has the advantage that the control signal is transmitted digitally and all motor control loops are in the drive, synchronized with each other, making this system work more precisely. However- analog control allows you to connect some old servo-drives, which can be a great advantage for people who want to retrofit their control system on old-type tool machine.

This and that I already had an IP-M made me decide to go for the S. With the M I only did some testing with a couple of steppers and started on a scrap build router using hybrid stepper drives but is a slow going project. I assumed Mach would use the controller in a similar way. Never knew the A will keep the position at all time.



Very far from finished though..

For the Z-axis I use the drive's output for the brake function. This because the drive knows when the motor is powered. The assumption here is that it will account for the latency. The only remark I have with this is that it appears the brake is operated more frequent compared to when operated by an external control.
Index has been set up as recommended by CSLabs.


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