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03-05-2018, 07:12 AM
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#1
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Senior Member
Join Date: Jul 2017
Location: Poconos of PA
Posts: 288
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Inverter Generator Confusion
Okay...of course AFTER I bought my inverter generator (Predator 3500), and bought/installed Progressive Industries EMS HW50C, I read somewhere and confirmed with Progressive Industries (PI) that using an Inverter Generator (IG) will harm PI's HW50C EMS!!! However using a 'conventional' generator would be perfectly fine.
To my understanding IGs provide "cleaner" AC so as to reduce risk of damage to electrical component.
Could someone smarter than me in this area, please explain why an Inverter Generator would damage the EMS?
Now of course I understand that I could place the EMS in bypass mode. Surge protection is still provided but not the other features of the EMS.
Mike
__________________
2018 Laredo 288RL Travel Trailer
2017 Silverado 2500 Crew Cab LTZ, Z-71, 6.6L Diesel
2017 Bullet Premier 19FBPR (traded)
2011 Silverado Crew Cab, 4wd Z-71, 5.3L (traded)
K9 Handler of my SAR partner and best friend Jeter!
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03-05-2018, 09:12 AM
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#2
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,985
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This is in the Progressive Industries FAQ section. The part I've "bolded" should set aside your concerns about protecting your RV from voltage/frequency variances produced by the generator. Most IG's do have a voltage and frequency specification and the control module monitors the output to assure it's within those specs. If the output varies from the specificaitons, typically the generator will "drop offline". I can't say what Harbor Freight specified when they purchased the Predator line, so you might want to check with them or in your owner's manual to verify that the model you have does monitor the output. If so, then just put your EMS in bypass and let the generator monitor its own output.
Q: Should a Hardwired EMS be installed before or after the transfer switch?
A: A hardwired EMS should be installed prior to the transfer switch. The reason for this is most RV generators already have built-in voltage and frequency protection. If the EMS is installed after the transfer switch, this leaves the transfer switch vulnerable to power problems.
http://www.progressiveindustries.net/faq
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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03-05-2018, 01:19 PM
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#3
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Senior Member
Join Date: Aug 2017
Location: Lafayette
Posts: 1,068
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Quote:
Originally Posted by TheGriz
Okay...of course AFTER I bought my inverter generator (Predator 3500), and bought/installed Progressive Industries EMS HW50C, I read somewhere and confirmed with Progressive Industries (PI) that using an Inverter Generator (IG) will harm PI's HW50C EMS!!! However using a 'conventional' generator would be perfectly fine.
To my understanding IGs provide "cleaner" AC so as to reduce risk of damage to electrical component.
Could someone smarter than me in this area, please explain why an Inverter Generator would damage the EMS?
Now of course I understand that I could place the EMS in bypass mode. Surge protection is still provided but not the other features of the EMS.
Mike
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All that is part of the reason I've not run out and purchased a hard wired version of an EMS. I have the plug in style but obviously don't use it with my gen, only when using shore power.
__________________
2015 Ram,3500,Dually,B&W,4.10s,Aisin,Limited,Silver
2018 Raptor,428SP w/full body paint
2012 Harley, Ultra Limited
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03-05-2018, 06:14 PM
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#4
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Senior Member
Join Date: Jul 2017
Location: Poconos of PA
Posts: 288
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Quote:
Originally Posted by JRTJH
This is in the Progressive Industries FAQ section. The part I've "bolded" should set aside your concerns about protecting your RV from voltage/frequency variances produced by the generator. Most IG's do have a voltage and frequency specification and the control module monitors the output to assure it's within those specs. If the output varies from the specificaitons, typically the generator will "drop offline". I can't say what Harbor Freight specified when they purchased the Predator line, so you might want to check with them or in your owner's manual to verify that the model you have does monitor the output. If so, then just put your EMS in bypass and let the generator monitor its own output.
Q: Should a Hardwired EMS be installed before or after the transfer switch?
A: A hardwired EMS should be installed prior to the transfer switch. The reason for this is most RV generators already have built-in voltage and frequency protection. If the EMS is installed after the transfer switch, this leaves the transfer switch vulnerable to power problems.
http://www.progressiveindustries.net/faq
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Appreciate the response John. I should have been more specific with my question. The Tech at PI, believe his name was Anthony, explained that even with a bonded N-G plug to get past the E2 error code, damage to the EMS circuitry would occur over time as a result of minor fluctuations in the sine-wave of the IG.
This is what is still tripping my logic breaker!!! I'm hoping there is a "Dick and Jane" explanation of this "sine-wave" anomaly.
Thanks for any help,
Mike
__________________
2018 Laredo 288RL Travel Trailer
2017 Silverado 2500 Crew Cab LTZ, Z-71, 6.6L Diesel
2017 Bullet Premier 19FBPR (traded)
2011 Silverado Crew Cab, 4wd Z-71, 5.3L (traded)
K9 Handler of my SAR partner and best friend Jeter!
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03-05-2018, 07:58 PM
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#5
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,985
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Mike,
Anthony is correct, but only if you leave the EMS in "monitor mode"
If you just bypass the EMS when running on the generator there can't be any "damage to the EMS circuitry" because you're bypassing all of that circuitry... Just let the generator monitor itself rather than trying to "double monitor" and use the EMS when you're on campground or house power..... Don't make it any more difficult than it has to be.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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03-06-2018, 06:29 AM
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#6
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Senior Member
Join Date: Oct 2016
Location: Sherman
Posts: 326
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JRTJH,
100% agree. No need to use EMS unless plugged into shore power.
__________________
2017 Alpine 3401RS,Titan Disc brakes,Morryde SRE 4000, 2016 Ram 3500HD Laramie SRW,LWB,4X4, Aisin transmission
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