Need Help!- VF5 208V conversion?

[machinist007]

I'm starting a new business and have purchased a 2001 VF5 XT. It's set-up for 230 volts and I need to drop it to 208 Volts. Anyone know the procedures involved? Thanks

[JohnJW]

I also have 208V as well.


From the Haas installation manual, page 14,
http://www.haascnc.com/pdf/Vertical%...stallation.pdf

step 2 is measuring the input voltage and then according to the manual

"3. Check the connections on the transformer at the bottom-right corner of the rear cabinet. The three black wires labeled 74, 75, and 76 must be moved to the terminal block triple which corresponds to the average voltage measured in Step 2 above."

If I only have 208V vs 230V does that mean I get 10% less hp from the motor?

[Geof]

Haas machines operate normally on 208volts. Just set the transformer taps correctly as mentioned above. It is a good idea to check the DC buss voltage as well. Go to the Diagnostics screen and page down until you see an entry for DC voltage, this should be between about 325 and 340.