Forum Discussion
SoundGuy
Oct 12, 2015Explorer
otrfun wrote:
Are there any confirmed failures caused by using a PSW inverter or inverter generator with a PI EMS?
Page 3 of the Progressive Industries EMS-HW30C / EMS-HW50C owner's manual says to NEVER plug their EMS into an inverter. As far as a generator is concerned - yes, there's that Yamaha EF2000iS warranty disclaimer from Progressive that ought to be sufficient proof that this is also a real concern.
Since modified sine wave has been identified by Progressive as the death knell for any of their EMS units it stands to reason that modified sine wave produced by any source, be it a generator or an inverter, is to be avoided when using one of their EMS units. However, assuming the inverter in question produces pure sine wave one would think it wouldn't be any different than an inverter generator producing pure sine wave BUT there is a caveat - not all inverter designs are the same. Some are designed with a 60/60 centre bonded neutral output, in which case one can't add a neutral / ground bond, so it's not just a simple matter of trying it to see if it works, you first have to know the specifics of the particular inverter you want to use with your EMS.
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