As reported here: http://mvvikingstar.blogspot.com/2013/02/compatibility-issue-between-ms2000.html we have been having problems with the new Magnum sinewave MS2000 inverter while powering the Splendide washer/dryer. Over the past couple of weeks I have been sharing Emails with support departments, taking some more measurements and trying to see if we can find a workaround. Based on my conversations and Emails with support personal as well as distributes of inverters, I can say today:
- We clearly have an interaction between the Magnum MS2000 inverter and the Splendide Washer/dryer that renders the 'True Sinewave' anything but. (See waveforms below)
- It appears that other brands small washing machines and washer/dryers also have an issue with the Magnum products. One distributor I talked with installs dedicated Chinese sinewave inverters for this customers who want to run washer /dryers after having issues with the Magnum and Splendide as well as Bosch.
- We had no such issues when using the Prosine inverter, and I was told by support the Prosine seem to work well.
- Others from a Email list I subscribe to (3x total) have reported no issues with the Victron brand of inverters.
|Original noted FAILING waveform.|
'Hooking' in red are suspect.
|FAILING waveform - only Washer/dryer.|
Washer/dryer repeatedly exhibited faulty motion with this waveform
|Added 7.7uF run capacitor.|
Better - still some hooking.
Washer/dryer stumbled slightly during 2nd trial run.
|With 15.4uF run capacitor.|
Hooking almost gone -
But does have a flat/fat-spot at zero-crossing transition.
And still, this is nowhere near a 'TrueSinewave' waveform.
Have completed 5x trial runs with no struggling.
|THIS is what it should look like!|
This is shore power.
(And also the Magnum when not powering the washer/dryer!!!!???)