Warco WM250

[DustyParticipant @dusty]

Les,

I have, after John pointed me in the right direction connected the VFD from the live output side of the board. How I wish I had photographed it all before I committed criminal damage to the set up. I did not think I would need any of the electric gubbins from the lathe in the new set up, oh how wrong can you be.

For information; Mains in goes to NVR switch, then the out goes to the filter board where in turn the VFD is connected to the out side of the board. Hope that makes sense. I have to admit I had wondered what the gash connecter was for

[Les Jones 1Participant @lesjones1]

Hi Dusty,
You will need to find a way to link that connector to the Live output of the filter board. Have a look if any of the wire that you removed have a piggy back connector on one end. (Both a male and a female connector on one end so that you can connect an extra wire.) If you have one like that then that will be an easy way to link to that connector. Confirm that you are sure which connector I am talking about before connecting it.

Les.

[DustyParticipant @dusty]

Les

I think you are talking about the connector that is next to the live output from the board, on the right as you look at it.

[John RuddParticipant @johnrudd16576]

Dusty,

As I see it, there are 4 spade connectors on the left side looking at the print side of the board.

The first one is connected to the transformer primary,

The second down is Live out,

The third is Earth,

The fourth is Neutral out and also connects to the other pin on the transformer primary.

If you link 1&2, the speed board should come alive after this….

As a safeguard, change the fuse in the plug to a 3 amp one while you test….you could disconnect the inverter too…

Report back your findings plz…

Edited By John Rudd on 03/04/2017 11:23:00

[DustyParticipant @dusty]

John, Les,

Yee ha, it worked, we now have a working readout. I have tried it with VFD connected and it reads increases and decreases in speed. All that now remains is to put everything back in place, I will then be ready to set the speed control pot up, just one question John, you told me the ground on the pot is the left hand terminal, is that with the terminals at the top or bottom as rotating it 180deg alters which is left and right.

[John RuddParticipant @johnrudd16576]

Dusty,

With the knob of the pot facing you, the ground is the left tag……the tags should be at the bottom….if at the top, its the right one….

You will of course need to tell the inverter to use the pot input, not the keypad Up n Down keys….

 

Edited By John Rudd on 03/04/2017 15:03:30

[DustyParticipant @dusty]

Thanks John, I will get it all back together over the next day or so and look at the instructions to see if I can work it out for myself, if not can I come back to you for further instruction.

For those of you that may have been reading this, I hope you have been paying attention. I will in the next couple of weeks put together an article for possible publication.

Can I thank John and les for all the help they have given me, without their help I think I may have turned into an alcoholic wreck, many thanks gents.

[John RuddParticipant @johnrudd16576]

Help is only a message away….

Good luck with the article, hope all goes well…

[Martin ConnellyParticipant @martinconnelly55370]

Maybe the spade connected to the live lines fed a power on lamp.

Martin C.

Edited By Martin Connelly on 03/04/2017 18:09:23

[John RuddParticipant @johnrudd16576]

Posted by Martin Connelly on 03/04/2017 18:09:03:

Maybe the spade connected to the live lines fed a power on lamp.

Martin C.

Edited By Martin Connelly on 03/04/2017 18:09:23

Eh??

I dont follow your thinking…Suffice to say, the pcb was missing a Live feed and it is now fine according to Dusty.

[DustyParticipant @dusty]

O.K. I give in, I have tried to understand but I suspect I am looking but not seeing the correct settings.. It cannot be that complicated, can it? I would like to be able to sort this out before moving the lathe back into position and setting it up. I am looking forward to being able to move about in the workshop and get on with projects.

[John RuddParticipant @johnrudd16576]

Dusty,

What are the values set to for P12 and P15?

I have both set to 0, and am using digital inputs 1 and 2 to give forward and reverse, speed pot connected to terminals 5,6&7 as per page 22….

Parameter P12 determines whether the vfd operates from the keypad or from the external terminals….

[DustyParticipant @dusty]

John

P12 is set to 1 if set to 0 it will not run, P15 is set to 0.

This next bit will confuse, it has me, with the lathe running turning the pot clockwise decreases the speed, silly bugger I thought you have got the pot connections round the wrong way. I reversed these connections and tried again, the lathe started in reverse, turning the pot clockwise as it went through the central position the lathe stopped and started again in the opposite direction (the correct direction)

[John RuddParticipant @johnrudd16576]

Dusty,

You need to decide if you want to run the machine from the keypad or from a seperate 'pod'…..you cant control On/Off from the keypad with a seperate speed pot….

The seperate 'pod' would house the speed pot and a 3 position switch…..giving Forward Off Reverse….However the pot in your case is on the front panel of your lathe….

Setting P12-0 and P15-0, permits control from the terminals, with F O R connected to terminals 1,2&3 and the pot connected to 5,6&7….

[John RuddParticipant @johnrudd16576]

Dusty,

Do you want to fone me? I sent you my number via pm.

[Mark P.Participant @markp]

Dusty, wish I’d gone the inverter route, my lathe is playing up again. I was turning up a lump of cast iron bar only a light cut when “pop” and the lights went out! Changed the fuse (5amp) now it will only run at a minimum of 800RPM grrrr! Just waiting to hear from Warco. Only replaced the motor and speed board a few weeks ago.
Hope your problems have been solved.
Regards Mark P.

[John RuddParticipant @johnrudd16576]

Dusty is just about there, a quick rewire of the switch should have him up and running again….

[Mark P.Participant @markp]

John, just about had it with mine think it may be time to get a new one maybe a GH550. Have to see what Warco have to say.
Mark P.

[petro1headParticipant @petro1head]

Very interesting thread. I have the WM290 so will mark this in case I ever need to replace the motor

[Mark P.Participant @markp]

Dusty are you there?
Mark P.

[Author]

Posts