Messages

21

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 24, 2012, 01:32:27 PM »

So I just went to Fry's electronics and bought 3 pots cuz they were so cheap and I didn't know which to buy 1k 10k and 50k ohms and a 9V

22

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 24, 2012, 11:17:36 AM »

Potentiometer ?

23

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 24, 2012, 10:52:56 AM »

I found some encoders but they r $230 a piece is that overkill. What is a pot?

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General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 23, 2012, 10:47:01 PM »

When I power on everything the motors are all just running constantly. I'm wondering if it would be cheaper to maybe buy a better replacement instead of having them repaired. I saw some advanced motion control 12a8 4 for 400 and that would be enough for my x y z and 4th axis. What do u think? http://item.mobileweb.ebay.com/viewitem;PdsSession=1c6123421380a47a1213e1a3fffc6293?itemId=130583622486&index=2&nav=SEARCH&nid=56905275030

http://www.artisan-scientific.com/info/Advanced_Motion_Control_12A8_Datasheet.pdf

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General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 22, 2012, 06:11:07 PM »

Ok so I figured out how to explain my previous post a little better:


That label is describing the terminal strip below.
Signal 1-6
1,2 X 2.25VDC
3,4 Y 2.13VDC
5,6 Z 2.39VDC

Tach 8-13
8,9 X -1.19VDC
10,11 Y 1.17VDC
12,13 Z -1.32VDC

Enable 14,15
-0.01

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General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 22, 2012, 12:59:53 AM »

What exactly am I using the Amp for? 100Vdc only or do I still need tach input?

27

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 22, 2012, 12:57:25 AM »

I have no idea it's what the guy who has been helping me was telling me to look for. I tested the terminal strips for each axis. The X Y and Z each have 2 wires w/2 inside of each wire for a total of 4 wires. Each terminal strip has 1 wire on 1&3 and the other wire on 4&5. So anyways I tested the voltage and I was getting 2.4Vdc for 1&3 on X and -1.4Vdc for 4&5 Z was almost the same just with some variation in the voltage but minimal. However the Y has 2.4Vdc on 1&3 and 1.4Vdc on 4&5. So X is +V and then -V, Y is +V and +V then, Z is +V and -V. Could that be my problem?

On page 5 the pic with the NC400 on it. It's the wires that go into the white terminal strip. The single one in the back.

28

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 21, 2012, 01:03:47 AM »

I was wondering... If I only need the NC400 amps for 100VDC for the servos could I just bypass the rest? It seems that my runaway problem is due to the 15Vdc + and 15Vdc-

29

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 18, 2012, 11:21:17 PM »

Well funny u should mention that because that wire that was shorting was to the Z limit switch and it was triggered. Once I manually move the Z off the limit switch my short was gone and the power supply was fine.

30

General Mach Discussion / Re: Kasuga NC mill to CNC ?'s

« on: June 18, 2012, 06:51:54 PM »

http://www.contraves-drives.com/pdf/M502001_d.pdf

So I found the answer but I don't know what it means.
Page 7-2 #4 Wherre it says: A runaway condition is cause for close scruting of polarities.