Original orac motor

All info relating to the Denford ORAC CNC lathes

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terry1956
Posts: 15
Joined: Tue 07 Sep , 2021 10:21 am
Hardware/Software: Denford 2600 router

Original orac motor

Post by terry1956 » Thu 28 Oct , 2021 14:23 pm

Hi, I wish to run the original orac lathe motor from a vfd. My understanding is that the motor can be run from a vfd. I have looked inside the motor wiring housing but there is no information to be seen on the wiring configuration settings. Can someone please let me know if I need to just wire the motor up as it’s set or do I need to change the positions of the metal bridging connections, if so to which position. I have attached a picture showing the motor wiring etc.
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Martin
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Re: Original orac motor

Post by Martin » Wed 03 Nov , 2021 21:57 pm

From what I remember the links are shown on the inside of the lid.

triac
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Re: Original orac motor

Post by triac » Thu 04 Nov , 2021 17:14 pm

Bit late but connect as is, power supply from VFD 1 leg to each set of linked terminals.
If direction is wrong interchange any 2 lines.

DavidB
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Re: Original orac motor

Post by DavidB » Tue 16 Nov , 2021 1:17 am

If your Asea Orac motor is the same as mine you may already have found the wiring legend cast into the underside of the wiring cover as Martin noted but here's an image of mine. Somewhat better than the usual paper label I've found degraded in most motors.
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xander janssen
Posts: 9
Joined: Wed 17 Mar , 2021 14:04 pm

Re: Original orac motor

Post by xander janssen » Wed 15 Dec , 2021 19:20 pm

I run my original Orac motor with a modern VFD and this runs really well.

If you need some more information, just let me know.

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