Re: [CAD_CAM_EDM_DRO] vexta stepper/driver

Hi all,

I bought 4 sets of vexta motor/drivers for $130 yesterday. Motors are
PH599H-A and drivers are UDX5128. Now I am planning to retrofit my mid sized
mill with them. Since the drivers are 100V AC, I'll need a step down
transformer from 220V to 100V. What rating of the transformer should I look
for driving 3 motors. The motors are marked DC 2.4 A, 0.7 Ohms. The driver
has a switch marked "1 Pulse, 2 Pulse". I guess it is for switching over
from CW/CCW to step/direction mode.

Regards,
Zafar

----- Original Message -----
From: "Alan Marconett KM6VV" <KM6VV@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, October 25, 2002 12:54 AM
Subject: Re: [CAD_CAM_EDM_DRO] vexta stepper/driver


> Hi Zafar,
>
> You might want to check, The 5-phase Vexta I have is CW/CCW, and 100V.
> Yes, I ran it off a VARIAC, and made a special version of my controller
> program to do CW/CCW. Some glue logic could probably also convert
> step/dir to CW/CCW. The NEMA #34 was a little big for my uses.
>
> Alan KM6VV