Ethernet on Mod Sine Wave [RE-wrenches]

[Joel Davidson]

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Hello Ray,

It sounds like a couple of things are happening here. The motor run 
capacitor is a common solution for motor devices. Some inverters and dirty 
grid power fry SCR speed controls. I thought the new generation of sinewave 
inverters put an end to motor and controls problems. Is there a list of 
problematic loads? What inverter seems to be most versatile?

Joel Davidson

----- Original Message ----- 
From: "Ray Walters" <walters at taosnet.com>
To: <RE-wrenches at topica.com>
Sent: Thursday, June 08, 2006 2:52 PM
Subject: Re: Ethernet on Mod Sine Wave [RE-wrenches]


>
> We had a customer we upgraded from an old Trace U series to an Outback. 
> His old Staber washer wouldn't run unless other loads were on. Seems that 
> some weird feed back was occurring when just the Staber and Outback were 
> on. I didn't get the full report, but somehow the Staber electronics were 
> tricking the Outback to think its voltage output was out of spec. A 50mF 
> Cap cured the problem. I've also got another customer who can't run a 
> Frigidaire front loader on SWs. It gets stuck on the Spin cycle I believe, 
> so they have to run a generator when they wash. I didn't do any of the 
> original work, so I haven't tried fixing that one. Maybe a cap would cure 
> that too. Then I had a couple of Stabers that kept cooking control boards 
> one on a DR, and one on a SW+.
> Meanwhile I've got folks running old top loaders on DRs for over 10 years 
> no problems.
> Hey I've even had trouble with a front loading washer on dirty grid power! 
> (smoked control board after 4 months) Those VSD controls are delicate.
>
> Ray
>
> Todd Cory, Mt. Shasta Energy Services wrote:
>
>>
>> Say more... Our Outback unit runs the front loading variable speed drive 
>> washer just fine.
>>
>> Todd
>>
>> Ray Walters wrote:
>>
>>>   often sine wave inverters have trouble too. (ie. New front loading 
>>> washers with variable speed drives).
>>>
>>> Good Luck,
>>>
>>> Ray Walters
>>
>>
>>
>>
>
>
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