[Larken]

The power supply needs plus and minus 14 volts so the 20 volt ac yields 28 volts DC with a centertap, which is +14 and -14.
I say a 20 volt transformer because it will usually be about 22-23 volts AC unloaded which will still be below the absolute max which is 36 volts DC.

The boards don't produce any heat, so you can mount them anyway.

Also i include a programming cable with the order so you don't have to make one.

Larry

[Marty_Escarcega]

The power supply needs plus and minus 14 volts so the 20 volt ac yields 28 volts DC with a centertap, which is +14 and -14.
I say a 20 volt transformer because it will usually be about 22-23 volts AC unloaded which will still be below the absolute max which is 36 volts DC.

The boards don't produce any heat, so you can mount them anyway.

Also i include a programming cable with the order so you don't have to make one.

Larry

Ah! Didn't equate Larry, HALF the 20V! Doh! (chair)
I salvaged a +/-15VDC power supply from another control I plan to use, so I should be good there.
Thanks for the cable, much appreciated.

Gathering parts now. Will take pics and keep everyone posted. I do have a few questions about connections to the Glentek servo amps. I'll post them here later on.

Thanks Larry, for putting these together and supporting them. Here is a link to pictures of the mill:
https://plus.google.com/u/0/photos/1...52313798869265

[Marty_Escarcega]

Ok, getting back to working on my control conversion.
Question, my Glentek 7115-1 servo amplifiers, used the SIGNAL input and used COMMON for reference. I see Step2Linear wiring diagram has +REF OUTPUT and -REF OUTPUT.
My Glentek servo amps also have a +DIFFERENTIAL SIGNAL INPUT and a -DIFFERENTIAL SIGNAL RETURN. The previous controller (Galil) used the SIGNAL INPUT.
Which should I use Larry? (I believe I send you the .pdf of the manual)


Also:
FAULT OUT is normally high and goes to ground when there is a fault?
ENABLE OUT is normally high until STEP2LINEAR pulls it low when its ready? So I could tie it to the negative side of the coil of a smal +5VDC relay and feed the relay with 5VDC?

Where does the +5VDC supply for the encoders come from on STEP2LINEAR? From the +/-15VDC input or from a +5VDC input (external +5VDC power supply necessary?)

Lastly, I assume all inputs labled +5VDC are all tied together on the STEP2LINEAR board? Why is the +5VDC at the FAULT & ENABLE OUT Connector required?
Thanks!
Marty

[Marty_Escarcega]

By the way Larry, I will be using the newer AMT113 programmed 1000 resolution on my X&Y. Will be using the stock 1000 resolution encoder on Z that came on the Glentek servo motor. X&Y on my mill used Mitutoyo 102 glass scales and tachs on the servo motors.

Have you done any bench testing with the CUI AMT113 encoders?