rvnutts
Hampton, Arkansas
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Hi all, we are new to dry camping. We have a Progressive Industries EMS. When i plugged the EMS into the generator, it would not power the rig. However, it did power the rig without the EMS. Note: the EMS threw up a PE code, open ground. I guess my question is, no EMS with a generator? Thanks!
Brian and Lynn
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jdc1
Rescue, Ca
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Is it an inverter generator?
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rvnutts
Hampton, Arkansas
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Its a portable onan 3700. Maybe the EMS is not needed on the portable generator??? We always use it when plugging into shore power.
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enblethen
Moses Lake, WA
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Sounds like the neutral and ground are not bonded. There needs to be a direct connection between neutral and ground.
Get a male 15/20 cord body. Install a jumper between the ground and neutral pins. Plug it into a receptacle.
Bud
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IAMICHABOD
Sunny So Cal
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enblethen wrote:Sounds like the neutral and ground are not bonded. There needs to be a direct connection between neutral and ground.
Get a male 15/20 cord body. Install a jumper between the ground and neutral pins. Plug it into a receptacle.
A plug Like this one will solve your problem and make your EMS work properly.
Many inverter generators are not grounded,my Generac is, so no need for this plug.
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pianotuna
Regina, SK, Canada
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EMS is not really needed with a generator.
What generator do you have?
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, soon to have SiO2 batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.
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wa8yxm
Davison Michigan (East of Flint)
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The EMS wants to see neutral and ground bonded on the SERVICE side (park breaker panel) and most portable generators Ground is N/C since it's not needed and serves no purpose A bonding plug is easy to make
Or if you have a good Inverter Generator. Skip the Surge Guard when using the Generator. Same applies to ONAN RV generators. they self monitor and shut down if out of specs. At least mine did.
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MrWizard
Traveling
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I forget who makes the Onan portable GENERATOR (Cummins who owns Onan, has it Mfg for them, not Mfg in the Onan factory)
But the EMS should not be needed
The EMS protects against shore power outlets that are wired wrong, an open ground or neutral, utility power transient spike voltages, brown out low voltage that could damage appliances like the air conditioner or 120v fridge, etc..
Your Onan will shut down if overloaded, (does not create low voltage unless overloaded) and does not create transient spikes, won't have an open neutral or ground unless something comes loose due to vibration or damage
* This post was
edited 06/19/21 07:58pm by MrWizard *
I can explain it to you.
But I Can Not understand it for you !
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rvnutts
Hampton, Arkansas
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Hey thanks everyone! Ill let dh see your responses! Hopefully we will figure it out!??
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bobsallyh
Livingston, TX.
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rvnutts, go here. I too just added a Predator genny to our fiver, fired it up with EMS, Progressive, turned on. No power. This fixed the situation quickly.
https://www.rvtravel.com/rv-electricity-generator-neutral-bonding-basics/
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