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Maybe you have to try it with a real differential signal. That means you have to put 5v and -5v to the control pins.

Do you have the Electric Plans from emco. Maybe you can find Out with them what the 3 Pole Plug is for. If you dont have them. I can mail to you. Just pm me your mail adress.

that´s correct. One should be powered permanent and the other one can be disconnected by the safety circuit. for testing purpose you can connect both

And I guess it's 5v because I have never seen differential 24v signals , but I might be wrong .

Dont think it's possible to sync the asynchronous motor with z and generally it is very uncommon that a vfd for asynchronous motors has step dir input. because of the asynchronous motors physics it...

It might be possible to use the original vfd. I have just checked the electrical Plans and the vfd seems to need differential step & dir input like stepper drives. The Amd signal is the enable I...

Now on ebay

http://bit.ly/12fERAA

http://bit.ly/13knyDA

190008190010

I have a yellow emco compact 5 tool turret for 3 Tools for sale.

Don´t know if it is working as i have no compact 5, for some reason it was delivered with my emcoturn 120 so i have no use for it....

@ Amadeo
same experience here. i retrofitted my pc mill 50 with the ex-work setup of belt and pulley on all axes but i was very unsatisfied with the low feed speeds. i sold the pc mill 50 and now i...

I have some belts and f1 stepper drives left over if you still Need them. Will put them soon on ebay.

The Pitch of the ball screw is 2.5mm per rev and it has a 1:2 ratio to the stepper.
If you have bipolar steppers it is 160 full steps per mm or 320 in half step.
I guess Uuu has the stepper in 1/10...

Right now i have set the feed to max 1460 mm/min . Before when i had the steppers connected in parallel bipolar (full coil ) max 700 were possible.
The limiting factor now is the 100khz of mach3 ....

here I present my Retrofit:

EMCO PC Mill 50 complete Retrofit - YouTube

comments welcome!

i run the spindle at 200 Hz too, tried to go even faster but it didn´t work, at around 220Hz it got slower again. Now i use it with the inverter in sensorless vector control and it works really good....

I meant the pulleys on the ball screw. is it possible to remove it?

RCREDD, i think you are right... the 1 pulse per rev wouldn´t have changed anything! I think i have now found out the real reason for loosing the steps... there was too much friction in the guides of...

So again a short update from me.

as i wrote before i connected the original 5 phase emco stepper board to a csmio ip/m. it worked really well and accurate as long as i didnt mill anything. but the...

It was actually working on the first try. Had to try a bit around to find the right resolution (steps per mm , it is 800) and the directions and the right speed and accelerations but it was fairly...

Some news from me:

I now wired up the original Steppers and Stepper board of my PC Mill 50 with a new CSMIO IP/M control and it works great! The Ethernet connection to the pc is working very well!...

Hello,

i have also bought an emco pc mill 50 w/o any software or control, It is in a not so good condition and bit rusty but i only paid 1300€ .
I now have to retrofit the machine.
My question...