[70cyclone]

Hi, I am considering buying an SL-1 for a conversion to MACH3. Can you tell me if the X and Z servo motors are DC or AC control? If you could post a picture of the motor plate, that would be awesome.

Thanks,
Joel

they are DC

[JHCHOPPERS]

Have you started on your conversion to Mach3 yet?

I just got my SL-1, it looks even better than I expected it too.

[nlh]

In case anyone is still in need of a wiring diagram. I have one for an SL-3 w/ Yasnac 2000G single line display. Click the link to the doc file.

http://www.box.net/shared/ceznmopsg4

Hope this helps.

[damae]

Have you started on your conversion to Mach3 yet?

I just got my SL-1, it looks even better than I expected it too.

That's a clean looking lathe! Do you plan to run it as-is, or to retrofit?

Since my last post, I've been too busy at work to set foot in the shop and work on my Moris. I carved out a few hours to install a 10hp rotary phase converter in the garage and start clearing space around the lathes.

Hopefully, I'll be able to get the SL-1H powered up soon - it's the one with working controls. The other one will have to wait a little longer, although the thought of being able to make chips on at least one lathe is getting me excited about doing a proper Mach retrofit!

[damae]

In case anyone is still in need of a wiring diagram. I have one for an SL-3 w/ Yasnac 2000G single line display. Click the link to the doc file.

http://www.box.net/shared/ceznmopsg4

Hope this helps.

Thanks for sharing! I have this same manual and when I first saw it, I marveled that it was hand drawn!

[JHCHOPPERS]

That's a clean looking lathe! Do you plan to run it as-is, or to retrofit?

I plan to do a complete conversion to Mach3. The shop has only signal phase 220VAC so I plan to use a VFD for the main spindle and new DC servo drivers and new digital encoders.

Haven’t done anything to it yet, as we are currently doing a complete conversion on a Bridgeport VMC in our spare time.

[kek_63]

Do you know if it is possible to do a conversion using the original spindle drive and x/z servos?

Keith

[JHCHOPPERS]

Do you know if it is possible to do a conversion using the original spindle drive

Yes, however you will need to interface Mach3 to the Spindle Drive. It is most likely a analog system (+-10VDC for the control), so you will need spindle driver board like the following (not 100% sure on that):
http://www.cnc4pc.com/Store/osc/prod...products_id=58

x/z servos? Keith

The servos are DC and the drivers are analog control. SO, the servo motors are good for a retrofit, the trick here is to get the analog drivers switched to Step/Dir (pixie P100 boards) or change the drivers to something like:

http://www.shop.cncdrive.com/index.php?productID=166

Hope this helps

JH

[damae]

It's been a while, but I finally installed a rotary phase converter and ran power to the first of the two machines, the SL-1H.

Lessons learned:
1. Door switch! The machine will appear dead if the service panel door is opened.
2. If you're going to run the machine without a tailstock, the lines must be capped! My first attempt had all of the fluid pumping straight into the coolant drain!
3. Capping the hydraulic lines to the missing tailstock is a temporary measure. They are still slowly leaking fluid into my coolant drain.

It was a great thrill to see the machine come to life! Very satisfying to jog the axes around with the MPG and see the toolchanger working! I'm sure it would have been great comedy to watch my facial reactions as I fumbled my way through the controls, trying to figure everything out.

So far, everything is working except the spindle. I'm looking for suggestions, especially the obvoius kind. Some of the switch labels are worn and I am not sure what some of the switches do... it's entirely possible there is a "disable spindle" toggle I missed somewhere.

Any ideas?

[nlh]

What control does this machine have?

I setup and run an SL-1 w/ a Yasnac 2000G control and no CRT on a near daily basis. I may be able to give you some pointers.

[damae]

What control does this machine have?

I setup and run an SL-1 w/ a Yasnac 2000G control and no CRT on a near daily basis. I may be able to give you some pointers.

The first machine is a SL-1H with Yasnac 2000G control with CRT. The second machine (which doesn't have power wired to it yet) is a SL-1A, also with a Yasnac, but with the single-line display.


I recently wired-in a rotary phase converter -- I might have the phase rotation wrong. Don't know how important that is.

[nlh]

Phase rotation is very important. If it is not correct, your pumps (coolant/hydraulic) will turn backward, that is, if the machines turns on at all. In my experience with my SL-1, if phase rotation is incorrect the machine can still be powered up but will be in permanent alarm mode until phase rotation is corrected.

I would say your phase rotation is correct if your able to perform tool changes and the tailstock lines are pumping out oil.

On my machine to turn the spindle on in manual mode, first the chuck needs to be clamped, make sure your MODE knob is turned to a setting that will allow manual movement (usually anything other than EDIT, MEM/AUTO, TAPE, or MDI). Then depress the spindle forward or reverse button and use the spindle speed knob to control rpm.

Another thing to try to get your spindle turning. Put the mode selector knob in MDI mode, the input M3 and S(rpm of your choice) and then push cycle start.

Keep in mind all of this may be slightly different with your 2000GII crt control. I have no experience with that particular variant. However it should be close.

Hope this helps, good luck!

[Waynno]

A bit of advise on running these old Moris on Phase converters. Make darn sure
the taps are correctly set on the transformers in the rear cabnets.

If not, the Spindle drive can blow making the machine nearly worthless.

Spindle drives are the weak link in those machines. If your not sure
how to check the taps, have a qualified tech check them for you

Wayne
http://nosala.com/

[underthetire]

And after you have completed the above items, press the foot petal for chuck clamp.

[nlh]

Yes, don't forget the foot pedal! lol

Any luck with it today?

[damae]

Yes, don't forget the foot pedal! lol

Any luck with it today?

Unfortunately, I still can't get the spindle going. The more I play with the controls, the more I realize I need to read through the operator's manual. I suppose I should have expected MDI mode to be very different from Mach, which I ran on my Bridgeport Series I mill.

I'm down to three likely causes:
1. Blown spindle drive (caused by installing 3 phase power wrong)
2. Stuck button on the control panel. Some of the buttons are a bit gummy. Spindle FWD is missing the plastic cap, although I can push the plunger with a pen.
3. Operator Error (Not knowing how to turn on the chuck clamp, for instance)

If I haven't blown the spindle drive already, then switching the phases would be one way to guarantee I did. =) The manuals I have don't have any instruction about how or where to adjust the taps. I need to take a closer look at the wiring schematic.

So I have two choices:

Option A: Hope that the phases are wired correctly and work through the list of things that could cause a normally functioning spindle to not turn on.

Option B: Assume that the phases are reversed and try switching L1/L2. I see this as more of a last resort.

[damae]

There's also an Option C: Tear down and retrofit.

[Waynno]

Are you getting any alarm codes? or is the spindle just not turning on?

You can swipe a plastic button off the tailstock funcion on you control
panal if you are carfull, They just snap in

There should be a lamp with the image of a chuck on the panal
that should be lit, that tells you chuck is in clamp position
or the spindle will not turn on

also, if the turret functions manually, you have hydrolic pressure.

If you have hydrolic pressure, Your phasing should be correct.

Wayne

[underthetire]

If you can index the turret the hydraulic pressure is ok. Backwards phase will not take out a SDU, nor make it run backwards. If the drive has a power lamp on and no alarms, you have something else interlocking it. Spindle clamp ( make sure the key switch is on od and the tube is back.) tailstock interlock (if it has one) barfeeder interface (did it have a barfeeder?) etc.

[damae]

Thanks for the checklist guys! I really do appreciate your help!

Checked:
-Spindle Clamp (good - light comes on)
-Hydraulic pressure (good - turret clamps and indexes)
-Alarms cleared (yes)
-Tool changer works

Stuff that I need to check:
-Power light on drive. Is this light on the Versadrive in the control cabinet?
-Spindle clamp ( make sure the key switch is on od and the tube is back.)
-Tailstock interlock. I'm not sure how to check this.
-Barfeeder interface. Yes, it had a barfeeder, but I don't know what to check.

Wayne, thanks for the suggestion to swap buttons.. I think I can steal one off my other SL-1 for now.

I'll investigate a bit more tonight and report back. Thanks again for the helpful comments!