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Topic: Update - Newer microwave/convection trips ATS? Bad ATS new one installed. (Read 1829 times) previous topic - next topic

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #25 –
While pictures may be of interest, ATS's are pretty standard in how they are wired. 

30 amps have two sources of 120 VAC in, with ONE hot, neutral and ground from each source.  One line out with ONE hot, neutral and ground.

50 amp ATS's have two sources of power (can get nitpicky as to whether it is 120/240 VAC) with TWO hots, a neutral and ground.  One line out with TWO hots, a neutral and a ground.

Note that many inverter/chargers have a built in transfer switch, so no need to have a second one (first one being shore power/generator).
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #26 –
Quote from: wolfe10 –
While pictures may be of interest, ATS's are pretty standard in how they are wired. 

Yes, but photos of how it was mounted, etc., is what I was talking about.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #27 –
Just a follow up on Brett's suggestions and what we did and did not do.

-  CG outlet - Checked outlets - Found every outlet in the coach and the only one that had the CG outlet was in the bathroom.  Brett strongly suggested that FT installed another but only found one.  Did not call FT to confirm.  Used the 110vac FT drawing in owners manual to find all outlets.
- Male end shore power cord - Checked - consistant power.
- Power reel to house wiring - Did not check as we were having the same issue when the generator was running.  The generator bypasses the shore power reel in the Main ATS
- Progressive EMS? - Disconnected the EMS and had the same issue.
- Main ATS - Checked the Main ATS voltage In and OUT with shore power and Gen set.  No variation in voltage.  All lugs and screws were/are tight
- Main breaker box - Checked every lug and breaker for tightness and power flow.  All steady.
- Secondary ATS - Replaced - Had no power fluctuations from shore/gen set and/or inverter Input lugs.  Inverter side would not stay connected even though it was energized.

Thanks Brett.

Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #28 –
Quote from: Carol & Scott –
-  CG outlet - Checked outlets - Found every outlet in the coach and the only one that had the CG outlet was in the bathroom.

Scott,
 
I must be having a senior moment (it is alfer sundown here). What is a CG outlet?
 
Thanks,
 
Trent
Trent and Jean Eyler
2000  U295  4003  WTFE  ISC  350
Build#5603 MC#17385

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #29 –
Trent, that is the outlet that has the test circuit breaker in the centre and will trip if any grounding is on the circuit. The one by sink in bathroom.
JohnH
reading that I meanto say Ground fault plug but maybe he was reffering to the Camp Ground plug you hook cord to!!
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #30 –
I usually see that as Ground Fault Circuit Interrupt (GFCI). The CG nomenclature is what threw me. When he wakes up, he can tell us what he meant.  ;D
 
Trent
Trent and Jean Eyler
2000  U295  4003  WTFE  ISC  350
Build#5603 MC#17385

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #31 –
OK - I'm awake. 

Ground Fault Circuit Interrupt (GFCI) in our bath room mounted on the sink base.
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #32 –
Reviving this thread because we are having the crazy ATS fluttering the Scott had.  On of our ATS' (the shore//generator ATS in the basement or the shore/generator // inverter ATS under the bed) is fluttering.  We have a hardwired Progressive 50A EMS in the basement that I installed and I'll check the connection tightness on it as well.  The EMS display shows normal voltages and no errors during the fluttering.

Shore/Genset ATS (basement)---->EMS---->Shore--Genset/Inverter ATS (under bed)

I'm going to start checking the items above.
Mark Duckworth
2003 U320 4220
Build 6199, Motorcade 17971

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #33 –
Just had another fluttering incident.  I'm seeing a PE5 code on the Progressive EMS display (previous error 5).  Perhaps that code has been there each time before and I've missed it.  Error 5 is high voltage on leg 2 of the incoming power.  My working hypothesis is that high voltage on leg 2 is causing the EMS to interrupt power.  When it restores power there are 30A to 40A loads (electric radiant heaters, AH 120V heat, etc.) on each leg and starting the ATS with those loads is unmasking the ATS problem.  Thoughts?
Mark Duckworth
2003 U320 4220
Build 6199, Motorcade 17971

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #34 –
All the connections in the coach were tight.  Opened the pedestal and found one of the legs on the 50A breaker in the pedestal was intermittent and finally failed hard.  Apparently the fluttering was only in the ATS in the basement that is tied directly to the pedestal.  The maintenance man is sourcing another breaker.  In the meantime we're up and running on the 30A to 50A pigtail converter.
Mark Duckworth
2003 U320 4220
Build 6199, Motorcade 17971

Re: Update - Newer microwave/convection trips ATS? Bad ATS new one installed.

Reply #35 –
I could also be a neutral problem.  If you loose the neutral it can cause one leg to go high voltage and the other leg to go low voltage.
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago