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welder
3rd Jun 2019, 09:58 PM
I just bought the cheapest VSD on eBay a mistake I know. turns out it's an Isacon 1.5kw I tried to set it up tonight and .. . Nothing the motor makes the VFD wine but doesn't rotate. I Get the meter out and it is indeed 50hz but the output voltage is only 48volts. My question is the drive cactus which I suspect and I hopefully can get a refund or am I missing something .

BobL
3rd Jun 2019, 10:11 PM
Do you have manual and have you read it?

VFDS are rarely plug and play so unless you have a lot of experience expect to do a couple of hours of homework with the manual BEFORE you connect it to a motor.

Have you done a factory reset - that's the first thing I would do on a used unit - I even do that on new ones after a new VFD tried to drive a motor up to 400Hz!

welder
3rd Jun 2019, 10:19 PM
Bob the manual on these units Is rubbish. They have very limited settings I haven't even found a mention of a factory reset in the manual.

BobL
3rd Jun 2019, 11:17 PM
Bob the manual on these units Is rubbish. They have very limited settings I haven't even found a mention of a factory reset in the manual.

Oh dear, my number one tip when buying a new VFD is makes sure it has a manual that you can understand.
Even more important for a used one.
Sorry.

welder
3rd Jun 2019, 11:24 PM
Yea these drives aren't anything like a Powertran or a HY. I just wanted a cheap drive for a 3 phase machine I
Wish to sell. I just find it strange it's only putting out 48volts.

jack620
4th Jun 2019, 08:17 AM
...the motor makes the VFD wine but doesn't rotate.


Is it performing an auto-setup? They make that whine when they are measuring the motor’s parameters.

BobL
4th Jun 2019, 08:36 AM
Is it performing an auto-setup? They make that whine when they are measuring the motor’s parameters.

Usually that requires the motor to be running.

familyguy
4th Jun 2019, 11:28 AM
How long did you try it for - perhaps it has been set for a long ramp up time, a vfd is not like mains power where the motor comes on instantly they do take a few seconds to come up to full speed.

russ57
4th Jun 2019, 07:40 PM
If you post the manual or a link the collective may spot something...

Russ

bollie7
4th Jun 2019, 09:55 PM
this is the user manual for an ISACON HY series379771

I bought one of these the weekend before last, mistakenly thinking it was a Huanyang.

I think PN32 (page 16) allows you to reset to the factory setting.
I also found some more info here (http://www.woodworkforums.com/archive/index.php/t-216226.html).

peter

familyguy
5th Jun 2019, 02:31 AM
On page 9 there is a setting Acceleration Time PN08 factory default is 10S (10 seconds ?) in the 50Hz column perhaps check this out you may need to set this for something a bit more practical like 3 or 4 seconds I've heard some VFD's don't like a setting much lower than this and they will go into overload due to the amount of current draw over short time so if this is the problem you may need to experiment a bit with settings.

I had a similar issue with my lathe VFD and the jog button, the jog frequency was set to I think to 7 or 8 Hz and the jog acceleration time was set for around 5 or 6 seconds - on pressing the button I had no motor action so I went looking for wiring errors, after much checking I spent some time with the manual and eventually realised I did not wait long enough for the motor to start. Resetting the acceleration time to a shorter time fixed the problem.

Stustoys
8th Jun 2019, 09:43 AM
My guess is Pn12=400. To start with you want Pn12=50
All my HY's came set to 400 regardless of what the manual states.
While you are in there check Pn10=50.

simonl
12th Aug 2019, 06:39 PM
How did you end up going with tht VFD Andre?

I need a couple of VFD's and was going to buy those cheapies but I need the basic functions such as ramp up, ramp down V/F curve customisation and jog.

Simon

BobL
12th Aug 2019, 06:59 PM
How did you end up going with tht VFD Andre?

I need a couple of VFD's and was going to buy those cheapies but I need the basic functions such as ramp up, ramp down V/F curve customisation and jog.

Simon

Simon, I'd make sure you can read and understand the manual first.