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Wiring nvr switch query

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Pete.28/01/2020 23:05:28
222 forum posts
36 photos

I've just removed this small motor from my lathe with the intention of using on something else, it has a 2 direction switch wired up, if I could have some input from you clever electrically minded folk, I want to wire it with a simple NVR switch, no reverse needed, the motor has 2 live and 2 neutral, how do you do this on this setup with 4 wires?

Please excuse my ignorance on electrical matters.

I'll upload a photo in a moment.

Edited By Peter F on 28/01/2020 23:10:02

Edited By Peter F on 28/01/2020 23:10:39

Pete.28/01/2020 23:08:38
222 forum posts
36 photos

Motor 1

Pete.28/01/2020 23:09:31
222 forum posts
36 photos

Motor 2

Steviegtr28/01/2020 23:14:31
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1370 forum posts
143 photos

That looks like a start relay so the motor may have start & run windings. Some do. That could be connected to a timer or a centrifugal switch on the motor shaft.

Steve.

Pete.28/01/2020 23:24:17
222 forum posts
36 photos
Posted by Steviegtr on 28/01/2020 23:14:31:

That looks like a start relay so the motor may have start & run windings. Some do. That could be connected to a timer or a centrifugal switch on the motor shaft.

Steve.

Thanks Steve, do you know how to wire up a simple 2 wire nvr switch rather than the 2 direction switch currently fitted?

Steviegtr28/01/2020 23:33:58
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1370 forum posts
143 photos

From your picture I would not know. Without a wiring diagram I cannot help, sorry. Maybe someone will be along who can help.

David George 129/01/2020 08:31:57
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1303 forum posts
447 photos

Sometimes there is a wiring diagram on the inside of the cover but failing that is there a plate on the motor. There seems to be markings on the cables that may give a bit of a clue, draw a sketch with cable markings and conections woukd help.

David

Brian Morehen29/01/2020 08:40:12
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120 forum posts
11 photos

Any Control Fitted into the mains lead that is a D O L has NVR and Thermal overload wiil not affected any other motor controls that hve not been touched..

Brian

Steviegtr29/01/2020 14:34:01
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1370 forum posts
143 photos

I am struggling as to what the NVR means. Is it a No volt relay. Like a lot of new pillar drills/ bandsaw & the like have fitted. Which are like a latching push start & combi stop button. Doing away for the need of a contactor.

Steve.

Ian Parkin29/01/2020 14:51:54
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834 forum posts
202 photos

Stevie

NVR is No Volt Release

so a contactor is nvr

the modern little green and red start stop modules have a latch which is magnetically held in so when power is interrupted the switch latches off so when power is resumed a machine won’t start up

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