Brian Pritchard | 01/01/2021 19:26:10 |
29 forum posts 1 photos | Thanks. My motor is driving a hacksaw machine. I am lost without it, it has been 2 years now. I haven't been able to find any information about it despite contacting Parvalux. Brian |
Michael Gilligan | 01/01/2021 19:58:11 |
![]() 23121 forum posts 1360 photos | Posted by Brian Pritchard on 01/01/2021 19:26:10:
Thanks. My motor is driving a hacksaw machine. I am lost without it, it has been 2 years now. I haven't been able to find any information about it despite contacting Parvalux. Brian . I hope you didn’t miss the post by Paul Smale, on the previous page MichaelG. |
Brian Pritchard | 01/01/2021 20:48:03 |
29 forum posts 1 photos | That post was in 2018 and I have contacted them since without any help. Brian |
Frances IoM | 01/01/2021 20:50:34 |
1395 forum posts 30 photos | does it now work? What happened to stop it working as these motors have a reputation for working for ever. |
Oily Rag | 01/01/2021 21:06:56 |
![]() 550 forum posts 190 photos | Brian, On reading your post I went to have a look at one of my Parvalux motors which runs a 'Scotchbrite' mop. I have several of the fractional hp motors with gearboxes, unfortunately not to hand at the moment. The 'mop' motor is a 240V 50Hz single phase 2800 rpm motor with cap start. The wires within the junction box are, from the motor 2 red and 2 white, the feed into the junction box from the mains is the normal blue, brown, and the earth yellow/green. the capacitor is external and is a 240VAC 50/60Hz 10uFd item. The connections are as follows: Mains Blue to White, Mains Brown to Red, whilst the remaining Red and White internal wires are joined together. This leads me to assume it is a 2 pole motor and the 2 poles are in series by way of the Red/White connector. The capacitor sits across the power 'inlet' i.e one side to the mains blue and one on the mains brown. This makes me think it is a cap start / cap run system. There is however a centrifugal 'switch' which can be heard to click in as the motor slows down when switched off. The mains earth connection is grounded to the motor body by a screw inside the junction box. With your 2 smaller wires I wonder if these are 'centrifugal switch' connections for taking the cap out of circuit. hence \i would expect them to be wired in one side to the cap and one side to one of the 'infeeds' from the mains. This would presumably make it a cap start only motor. I will dig out the gearbox motors to see if they are anything like your wiring - from memory they are 1/16hp and the gearboxes give a 12rpm speed. I have another motor without gearbox which is similar to the above but 1/8th hp and is fitted with a 4uFd capacitor. Can you detail your motor parameters, and a photograph would also help. I would be interested what hp rating it is (or Wattage), motor rpm, and whether it has an external cap. A Happy (and Healthy) New Year to all, Martin |
Michael Gilligan | 01/01/2021 21:20:07 |
![]() 23121 forum posts 1360 photos | Posted by Brian Pritchard on 01/01/2021 20:48:03:
That post was in 2018 and I have contacted them since without any help. Brian . My apologies MichaelG. . I don’t suppose pdf p19 [numbered page 17] of this would be any help: https://www.parvalux.com/media/wysiwyg/Resources/Catalogues/Parvalux_-_AC_Catalogue.pdf
Edited By Michael Gilligan on 01/01/2021 21:52:47 |
Nicholas Farr | 01/01/2021 22:01:29 |
![]() 3988 forum posts 1799 photos | Hi Brian, has it got a brake fitted to it? if so the two thin wires could be for operating the brake and if there is no resistance between them the brake has gone open circuit, if there is no brake fitted, then it is probably an internal fuse. The two white and the black would be the supply, the black going to live, one white to neutral and one side of the capacitor and the other white going to the other side of the capacitor and if it goes the wrong way, swap the two white wires over. It may help if you could give the model number. Regards Nick. Edited By Nicholas Farr on 01/01/2021 22:02:07 |
Frances IoM | 01/01/2021 22:20:51 |
1395 forum posts 30 photos | Michael - great find - my small motors are all SD type as I suspect is Brian's - their figure confirms my wiring and my 4microFarad is mid range for either the 2 or 4 pole but if Brian knows the model or power then he can adjust the capacitor as appropriate tho these are usually not specified to better than +/- 25% Edited By Frances IoM on 01/01/2021 22:21:09 |
Brian Pritchard | 02/01/2021 09:37:56 |
29 forum posts 1 photos | Thanks for the replies. I have posted two photos of the motor in Brian Pritchard's Album. The motor just stopped working. I removed the motor for checking, didn't photograph the connections. I was given another motor but it was DC so no use. I wanted to check the motor with a new capacitor but, of course, could not remember the connections. These are the details from the motor. ST132 230/240V, Condenser 5 mF, 1 phase, 100 rpm Ref: SD 14HD 5028/TROP. I am not aware that it has a brake perhaps the black wire are for an internal fuse as suggested. I hope I have answered all the questions, I am ready to tear my hair out, if only I had any, The compressor motor went bang a couple of months ago and the milling machine went bang yesterday. I am thinking of trying crochet, it is cleaner and less stressful. Happy New Year to all. Brian |
John Haine | 02/01/2021 10:35:23 |
5563 forum posts 322 photos | I think this might help, based on the connections to the motor on my Quorn.
Ignore the thin black wires. The thick black wire will correspond to the N (neutral) connection and goes to the common connection of the two windings. The tops of the two windings will be the two white wires, they go across the capacitor. The live L connection goes to one end or the other of the capacitor depending on switch position, for reversing. |
Swarf, Mostly! | 02/01/2021 10:42:16 |
753 forum posts 80 photos | Hi there, Brian, Suffering three motor failures is a bitter portion! I can't add anything to the technical advice you have already received from other members. However, I am moved to offer you words of encouragement: Thanks to this forum, you are not on your own. Hang in there and keep trying! These things can usually be fixed. Remember, tenacity tells. Best regards, Swarf, Mostly! |
Nicholas Farr | 02/01/2021 13:16:57 |
![]() 3988 forum posts 1799 photos | Hi, this is the wiring diagram printed on the capacitor for my Parvalux motor, and although I've marked L and N they are not marked on the capacitor, but seeing how it's AC it shouldn't matter which one is Live and which one is Neutral. Mine works fine with it wired as shown, (and I know the white wires look red, but I don't have a white pen) Regards Nick. |
peak4 | 02/01/2021 14:08:17 |
![]() 2207 forum posts 210 photos | Hard to find info an a Parvalux SD14 HD family It looks like capacitor across whites, Neutral to single black, Live to one of the whites only, depending on which direction you want it to run.
|
Les Jones 1 | 02/01/2021 14:35:56 |
2292 forum posts 159 photos | I think John's and Nick's diagrams are probably correct. They are both functionally the same. The fact that the mains polarity is shown different does not matter. (Either way is OK.) If the motor rotates in the wrong direction then swap the power wire to the other white wire. (That is the Live in John's diagram. The neutral in Nicks diagram.) If you want to know what the thin black wires are then you will have to dismantle the motor. I can see three possibilities. They could go to a thermal fuse, A thermistor for monitoring the temperature. (This is not very likely on an old motor,) They may also may go to a centrifugal switch which disconnects the start winding when the motor gets up to speed. If it is a centrifugal switch it is faulty as it should measure almost zero ohms when the motor is stopped. Les. |
peak4 | 02/01/2021 20:09:27 |
![]() 2207 forum posts 210 photos | Posted by Les Jones 1 on 02/01/2021 14:35:56:
I think John's and Nick's diagrams are probably correct. .............................. Les. Also ties up with the one I found, but more importantly it also shows that Parvalux got it correct in their catalogue. |
Brian Pritchard | 03/01/2021 13:49:40 |
29 forum posts 1 photos | Thanks for all the helpful replies. Using a lamp to test a capacitor is a new one on me, I will try it out. I also have the problem that if the RCD in the switchboard drops out, all sockets in the house drop out and if the boss is watching telly I become a victim of domestic abuse! Perhaps I should use a separate RCD adapter when testing motors? Cheers Brian |
Brian Pritchard | 23/01/2021 13:53:48 |
29 forum posts 1 photos | The Saga continues. I decided to look inside the motor before attempting wiring up. I have posted three pictures of the coil in my album 'Parvalux Wiring'. There are two black wires going into the coil on one side and two white and One black on the other side. Any further thoughts? What values of distance should I expect? Thanks as usual. I fixed my milling machine, it seem to be some swarf had got into the motor; it is now running OK. The compressor is next for investigation. Brian |
Emgee | 23/01/2021 14:37:13 |
2610 forum posts 312 photos | Brian Connect as John Haine's sketch above but add some insulated sleeving over all of those wires as one of the white wires has a split in it, unless it is brittle. Emgee |
Brian Pritchard | 23/01/2021 14:54:30 |
29 forum posts 1 photos | Thanks. Just out of interest what do the two thin black wire do? Brian |
Brian Pritchard | 31/01/2021 09:10:37 |
29 forum posts 1 photos | Thanks to all he helpful replies. The motor is now working. I think the problem, apart from the correct wiring, was the wires which are quite hard and cracking and caused a short. I have covered the wires with heat shrink and that seems to have solved the problem. It has taken me 2 years! The failed milling machine motor was caused by swarf getting into the motor. The compressor motor also had problems with wires shorting. It was tidied up and is now also working. So back to work creating large quantities of swarf and filling the junk box. Brian |
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