Electronics Forum | Thu Jun 15 14:51:37 EDT 2017 | bmalhi
If machine serial tag referring to 3Ph, 208-240V then you cannot apply 3Ph, 380V. In order to use 3Ph, 380V supply you have, machine needs to be retrofitted to work with this voltage. If you apply 380V without voltage conversion, you will damage som
Electronics Forum | Wed Jun 14 03:21:29 EDT 2017 | bukas
hello everyone, I got a Heller reflow oven that operates at 3x240V and a delta-delta transformer since my grid is 3x380V. the problem I have right now is that there is no neutral line at delta-delta transformer, also there is no neutral line at oven
Electronics Forum | Wed Jun 21 01:49:10 EDT 2017 | bukas
Thank you Bilal, i am aware that you can't run 3x240 machine at 3x380V, that is why i have delta-delta transformer. It was phase sequence after all, and machine is now running. Thank you all for your help.
Electronics Forum | Wed Jun 14 18:33:39 EDT 2017 | caurbach
1. Why isn't an electrician doing this? 2. Did you measure phase-to-phase voltage between each phase at the machine? 3. Phase rotation only affects the 3-phase motors. If it's out of sequence, the motors will spin backwards but everything else sho
Electronics Forum | Sun Mar 02 01:56:53 EST 2008 | rfematt
Does anyone have used Heller 1700SX (2001) or Heller 1700EXL (1999) for lead free? I found some references in this forum for Heller 1500 but anything for last ovens, just wondering if they can be used though they may run slow.
Electronics Forum | Sun Mar 02 16:01:28 EST 2008 | rfematt
Thanks for your information. What model year is your Heller 1700?. It seems that you can find same model (1700EXL) from 1999 to 2008 but there should be some differences between them which I don't know. Just want to make sure you are not running a ne
Electronics Forum | Mon Mar 03 13:09:44 EST 2008 | dyoungquist
We are using a Heller 1707EXL for both lead and lead-free assemblies with no problems. The zones can reach the temperatures needed for lead free. The belt speed can be adjusted so I'm not sure about your "run slow" comment. Maybe the 1707 is diffe
Electronics Forum | Sun Mar 02 15:41:04 EST 2008 | jlawson
I set up some lead-free profiles on a new Heller1700xxx (Compact series), do not know if this is same model you refer to. Can be done, yes speed is a little slower than longer Heller Versions due to zones being so narrow, but doable. Of course all de
Electronics Forum | Fri Oct 07 14:37:36 EDT 2005 | jimmyjames
Could I get some help please? I have a Heller 1700EXL, 7 zone oven and I'm trying to figure out a better way of off-loading my completed boards. What I have now is simply a small table at the exit of the oven with about an 8" drop from the top of
Electronics Forum | Wed May 30 11:28:26 EDT 2007 | vikkaraja
I have replaced few of those, on 1500, 1700, and 1809EXL. It should not take you more than couple of hours. Only problem I do see you running into is maybe rusted/welded screws for the elements from heat.
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