Re: [RE-wrenches] Outback quad stack X240 breaker tripping

[Allan Sindelar]

Kevin and others, In my files I have a pdf of an Outback Powerpoint from around 2008, most likely from a training I attended. I tried to send it along in a post, but at 1.5 meg it was too big and was rejected. It has schematics of the various dual and quad stacking arrangements with the X-240. Contact me off list if you would like a copy. Allan Allan Sindelar al...@sindelarsolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder (Retired), Positive Energy, Inc. 505 780-2738 cell   On 3/16/2015 6:39 AM, Tump wrote: Have you turned the breaker on the t240 to the off position? One does NOT have to have that operational for the system to operate correctly.The old t240 has about the same parasitic draw as an inverter. Isolate, Isolate, Isolate. If the system functions correctly w/ the t240 off and the stacking is correct on this q stack disconnect it(the t240). Otherwise I would remove the inverter com cables and only connect 1 pair of inverters at a time, reset the mate with the correct com cables connected to P1& P2. Sometimes something so simple as disconnecting & reconnection the mate can have quite a benefit. Again I would, if you are really stuck on having the t240 operational, then try it with each inverter as a single unit then try the second set of inverters. Disconnect the #s1&2 inverters and do the same; connect #s 3&4 P1 & P2, to see exactly which component may be your problem. You are more then happy to contact me off list if you choose. contact info below. Tump On Mar 15, 2015, at 5:04 PM, Jerry Shafer wrote: -------- Original message -------- From: Kevin Pegg Date:03/11/2015 1:19 PM (GMT-08:00) To: RE-wrenches Subject: [RE-wrenches] Outback quad stack X240 breaker tripping Hello Wrenches, Customer in remote location has a strange situation come up on an existing system installed (by others) 6 or so years go. Quad stack VFX3648. Last night gen start was triggered by low voltage - a normal system operation. Approx 1h into charge, they lost 1/2 the circuits in house - L2 de-energized. Caretaker went to check power system and noticed the X240 breakers tripped. Tried to reset but it tripped out right away. So he left it as is and called me in the morning. Here's what I've been able to determine today: - The x240 is installed to bridge L1 & L2 on the load side. - with master inverter on, 3 slaves off, both L1 and L2 energized so suggests x240 is working. - within 10 seconds of generator on and charging, x240 breaker trips (and makes L2 go dark). - loads are minor, ~1,000 w of misc lights and such, isn't all loaded up on one leg. Appreciate any thoughts to remedy. I'm not as familiar with this config as others. Kevin Pegg EA Energy Alternatives Ltd. 37471 Hwy 16 E Telkwa, BC  V0J 2X2 250-846-9888 Http://www.EnergyAlternatives.ca

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