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Omron Varispeed V7 - Help?

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Neil Wyatt20/10/2017 18:24:17
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Posted by Cornish Jack on 20/10/2017 18:15:00:

Thank you Neil and Murray - must bear the cable tie idea in mind. I, as usual, did it the more fiddly way by making a clamp strip to match one from a defunct 3 pin plug and screwed them together - seems to be OK. Happy that it's working but I would love to hear why the motor was emitting rotation noises without moving

Presumably just one phase was powered properly making the armature shake back and forth.

Neil

Cornish Jack21/10/2017 17:59:35
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Considered that, Neil, but the armature is direct drive to the pulley and fan and neither was moving.frown

Dimly recovered memory said that swapping a pair of wires would reverse rotation, so tried that and, indeed, it doessmiley However the speed pot on the pendant still works the wrong way - anti-clockwise increases speed. Has anyone got the'words and music' to make it work the right way, please?

rgds

Bill

Edited By Cornish Jack on 21/10/2017 18:00:07

john fletcher 121/10/2017 18:17:32
893 forum posts

To alter the speed control exchange he TWO wire going to terminals FC & FS leave FR the centre one as it is. Pleased to see you have been helped out, commendable, as it should be.John

Cornish Jack21/10/2017 18:37:13
1228 forum posts
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Thank you John - I'll give that a whirl tomorrow. Almost back to a working Myford - Whoopee!!laugh

rgds

Bill

Neil Wyatt21/10/2017 19:14:17
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19226 forum posts
749 photos
86 articles
Posted by Cornish Jack on 21/10/2017 17:59:35:

Considered that, Neil, but the armature is direct drive to the pulley and fan and neither was moving.frown

Dimly recovered memory said that swapping a pair of wires would reverse rotation, so tried that and, indeed, it doessmiley However the speed pot on the pendant still works the wrong way - anti-clockwise increases speed. Has anyone got the'words and music' to make it work the right way, please?

rgds

Bill

Edited By Cornish Jack on 21/10/2017 18:00:07

It would vibrate at about 50Hz so you might hear it without being able to see any obvious movement.

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