power supply 80v question for g203v

[apex]

with 3 g203v and 3 motor 425oz 4v 6.8mh indutance i want buy a power supply 80v same on this address
http://cgi.ebay.ca/80V-10A-24V-1A-Po...QQcmdZViewItem
it is overlimit or no problem for the gecko 80v max
thanks apex

[LeeWay]

I would say no problem. If you look at the stats, when the motors are drawing amps, the voltage goes down. It's only 80 volts at no amp draw or basically idle.
I would wait for a word from a better authority though. I have those motors with a similar 72 VDC PS and I typically measure 68 and 70 volts on it.

[thkoutsidthebox]

If this is ok for the 203V's I'll get one too.....how many drives could be supplied full current from one transformer?

[apex]

if a calcul i see in the forum is exact
amp. first stepper motor + amp of the second + amp next motor .... x 0.65=amp min for the transfo
sample: 2.8+2.8+2.8=8.4*0.65=5.46 amp min request but i want add 4axis next year, and i want bigger than too small, less heating.

[Crevice Reamer]

This should be fine for the 203V. Four of the 425 motors will require 7.5A--well within the 10A max. A good price and reasonable shipping cost.

The only drawback I can see to this PS, and it's not a deal killer--I Just prefer dual output, is that it is only a single rectifier output.

CR.

[apex]

john , the seller on ebay , email me and whrite voltage to high for gecko john recommend 65v-75v power sullpy, i have decided, to take a 72v 11a power supply, because the 80v is limit, and i don't want burn my gecko, i want a security.
thanks apex

[Crevice Reamer]

After you get it hooked up and powering all three motors, please measure the voltage and post back. I would be REALLY surprised if your actual working voltage is above 70 volts with all three motors energized.

CR.

[LeeWay]

That and I think the 203V is protected a little over 80.
However, if that seller said it's too high, then it may not be very stable and possibly surge. It has probably caused issues before with at least the 201's.
I think I would take his advice.
The 72 VDC 10 amp at Keling works well. Unless it's high speed critical. The difference probably wouldn't be noticed much.

[apex]

if power supply give 80 volt at 115v,
my acvoltage in my house is 124v, if i use this power supply in my house the voltage raise to 86Vdc (80*124/115=86v)
with the 72v give in my house (72*124/115=77.6v)
for this reason i'm more secure with the 72v

[ger21]

Good point.