14-11-2013, 05:49 PM
Hi,
Nice one Joe; yes woodturning can take over and I can see the time coming when I'm happy at the lathe.
Many thanks Refugee for the pot wiring instructions on #214 which I've been trying to copy this afternoon. I used screened cable and the two new 10K WW pots working directly into the VFD under the hall floor. I hope I understood your instructions correctly and I've drawn a rough sketch as to how I wired up.
Unfortunately I couldn't get any difference; the screening didn't make any difference as well. Connecting this way aren't the two pots in series? I tried this a few days ago using two 5K pots with the same result? It's highly likely I'm at fault but I did ensure the track end to wiper at zero volts was connected to 10V as in the drawing.
I hoped the screening would have some effect but I didn't notice any difference at all; I didn't connect the motor supply screening to ground but I can try this next time Peter. I connected the pot cables screening to the Main Circuit Terminal "E".
I've just noticed instructions on pages 12 & 13 of the manual regarding screening and how important this is; when I removed these two pots and re-connected as previously the motor sounded a bit noisier?
I have access difficulty to the VFD making connecting a challenge. Rolling around uncomfortably under the hall and feeling chilled in the glare of the LED floodlight I called it a day.
Does your VFD give full pot sweep Peter?
It's possible I might be better off clearing the bench and setting the VFD and a spare 3 phase motor up on the bench because playing around the way I'm doing is getting me nowhere; I have the original 3/4hp Graduate motor to save removing the motor already installed which is a right pain to remove.
Once again I'm running around tomorrow but over the weekend nothing is planned so I can spend time on this problem.
Thanks once again everyone for your time and patience for which I'm grateful. Hopefully Huanyang will reply with the solution in the near future but with my luck I think this will be the moment I finally crack this problem?
Kind regards, Col.
Nice one Joe; yes woodturning can take over and I can see the time coming when I'm happy at the lathe.
Many thanks Refugee for the pot wiring instructions on #214 which I've been trying to copy this afternoon. I used screened cable and the two new 10K WW pots working directly into the VFD under the hall floor. I hope I understood your instructions correctly and I've drawn a rough sketch as to how I wired up.
Unfortunately I couldn't get any difference; the screening didn't make any difference as well. Connecting this way aren't the two pots in series? I tried this a few days ago using two 5K pots with the same result? It's highly likely I'm at fault but I did ensure the track end to wiper at zero volts was connected to 10V as in the drawing.
I hoped the screening would have some effect but I didn't notice any difference at all; I didn't connect the motor supply screening to ground but I can try this next time Peter. I connected the pot cables screening to the Main Circuit Terminal "E".
I've just noticed instructions on pages 12 & 13 of the manual regarding screening and how important this is; when I removed these two pots and re-connected as previously the motor sounded a bit noisier?
I have access difficulty to the VFD making connecting a challenge. Rolling around uncomfortably under the hall and feeling chilled in the glare of the LED floodlight I called it a day.
Does your VFD give full pot sweep Peter?
It's possible I might be better off clearing the bench and setting the VFD and a spare 3 phase motor up on the bench because playing around the way I'm doing is getting me nowhere; I have the original 3/4hp Graduate motor to save removing the motor already installed which is a right pain to remove.
Once again I'm running around tomorrow but over the weekend nothing is planned so I can spend time on this problem.
Thanks once again everyone for your time and patience for which I'm grateful. Hopefully Huanyang will reply with the solution in the near future but with my luck I think this will be the moment I finally crack this problem?
Kind regards, Col.
Happiness is a wreck of a cabinet to restore.
