3 phase converter help needed please

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3 phase converter help needed please

This topic has 41 replies, 11 voices, and was last updated 6 October 2018 at 10:23 by George Jervis.

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24 September 2018 at 13:55 #373055
John Rudd
Participant
@johnrudd16576
As DJ says, looking again at the wiring in the manual, the terminals L0+ and 24v need connecting together, then link across to LI1. That should get the motor spinning ….( assuming you connected the +10v across to the AI1 terminal)

(Although on page 49 it does say that connecting LI1 to +24 should set the motor going, as I previously said…)

Edited By John Rudd on 24/09/2018 14:00:41
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24 September 2018 at 18:30 #373099
George Jervis
Participant
@georgejervis86082
Hi John
Just before I left for work I did try lo+ to +24 but again nothing happened I have been given another combination to try but that’ll be tomorrow morning as I don’t finish work until 22:30
Thank you for the continued help
George
24 September 2018 at 19:10 #373106
Martin Cargill
Participant
@martincargill50290
Just a thought. Some controllers won't start the motor if the start switch is pressed when the controller is powered up (modern controllers have a parameter setting that allows this if required). Try adding a simple on/off switch between LI1 and +24, then close this switch after the controller is powered up and shows RDY.
24 September 2018 at 19:25 #373109
Pete Rimmer
Participant
@peterimmer30576
Hey George it might be worth mentioning your location. You might have someone here nearby who could pop round and steer you straight with your VFD.
24 September 2018 at 19:57 #373113
John Hinkley
Participant
@johnhinkley26699
It would be about this stage that I'd be asking myself if the VFD was functional when it was given to me! I don't suppose you could try the motor with a known, good ( as in working ) VFD? As Pete Rimmer says, give us a clue to your whereabouts and you might get some more help. But not from me – I'm a semi-numpty when it comes to anything electrical.

All the best with your efforts, thouh,

John
24 September 2018 at 20:02 #373117
John Rudd
Participant
@johnrudd16576
Posted by Pete Rimmer on 24/09/2018 19:25:25:

Hey George it might be worth mentioning your location. You might have someone here nearby who could pop round and steer you straight with your VFD.

Well if he is any where near me I'd be only too glad to visit for a coffee…and a chat ( I get lonely being retired..)

I'm about 7 miles from Newcastle city centre…
24 September 2018 at 22:33 #373142
George Jervis
Participant
@georgejervis86082
Hi everyone,
I live in mid Wales (Newtown Powys SY16) my friend (sparky) who supplied the vfd had sent me a message saying to try a switch like suggested he has a couple of spare converters identical to mine and earlier he put a switch on and it worked so hopefully in the morning I’ll try and see if it works for mine
George
25 September 2018 at 10:02 #373175
David Jupp
Participant
@davidjupp51506
Manual page 64 – faults which can be reset with automatic re-start – includes under-voltage.

You have Atr disabled, so yes you will need to use a switch to ask for start after drive has reached Rdy status.

I'm NOT suggesting that you enable Atr (except perhaps just to test) – you generally don't want machine tools re-starting after a power outage.
25 September 2018 at 10:19 #373178
George Jervis
Participant
@georgejervis86082
Hi everyone
Well I’ve put a switch on today and the motor now RUNS finally, just need to buy a potentiometer now to control the speeds as the motor is running at a slow speed.
I would like to thank everyone on the forum for helping fixing this with me
George
25 September 2018 at 10:40 #373181
john fletcher 1
Participant
@johnfletcher1
How good it is in this day and age of grab and deceive (look at the small print) that people are still prepared to help one another. John
25 September 2018 at 11:41 #373192
George Jervis
Participant
@georgejervis86082
Hi John,
I think it’s fantastic that people can come together on here and help one another. I feel a bit lost when it comes to electronics now. Since I lost my dad he was fantastic with things like this he was a electronic engineer on the missile testing range on benbecula. So anything electrical or mechanical/lathes work was just a phone call away
But it’s nice to have the help again from everyone
George
25 September 2018 at 14:39 #373224
John Rudd
Participant
@johnrudd16576
So now you have proved that it works, you might want to consider making a proper control box with the stop/star switches and speed pot..I'd strongly recommend you incorporate an nvr switch on the mains incoming side to the inverter. Even though the inverter is programmed not to restart after a power cut, it is better to,have a safer hardware option rather than relying on software.
25 September 2018 at 15:47 #373230
George Jervis
Participant
@georgejervis86082
Hi John,
I’ve already got a cabinet to put it and a on off switch just waiting for a potentiometer now, I found it jumped from one speed to the next as I adjusted SFP. I made the mistake of turning it off when it was still on full power testing it, when I turned it back on it made me jump going straight to full speed. I’ve adjusted the ACC to 4.0 sec and DEC to 4.0 sec instead of the original 0.3 it was on. so it Accelerate and decelerate slowly now all fun and games sorting it out
George
29 September 2018 at 15:46 #373807
George Jervis
Participant
@georgejervis86082
Hi everyone,
Well I finally got it wired up and running it did indeed need a switch wiring in. I’ve now got a potentiometer to work out how to wire in and it’ll all be all done?
George
29 September 2018 at 15:54 #373810
John Rudd
Participant
@johnrudd16576
George,

The pot has three tags, connect the centre tag to the respective analog input AI1 ( I dont have access to the manual right now…) the outer tags, connect 1 to the Ov and the other to the +10v terminal….

If the motor spins up at switch on with the pot turned fully anti clockwise, swap the outer connections over….

Edited By John Rudd on 29/09/2018 15:56:04
6 October 2018 at 09:59 #374785
Johnboy25
Participant
@johnboy25
George – any updates on progress?

John
6 October 2018 at 10:23 #374788
George Jervis
Participant
@georgejervis86082
Hi John,
My apologies everyone for not treating. everything is almost sorted now I can control the speed with the potentiometer which makes things a lot easier controlling the speed. The only issue I have is translating the motor plate and inputting the parameters into the converter? I used my rpm meter to find the top speed of the motor (1300rpm) and set that into the HSP setting so not to damage the motor. But at the moment it’s usable but I’m taking it easy as I learn more about 3 phase
Many thanks for all the help given
George
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