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Mate 3s not saving configuration.

Posted: Wed Jun 24, 2020 12:39 pm
by marckeez
My system is set up to sell-back to the grid. I setup all parameters to sell to grid and then save the current configuration and the Grid sell Off-set keeps going back to N (no off-set) which does not turn the inverter on to sell to grid. I have changed this several times now to Y (Yes for off-set) and save config. Off-set is set to 1V less than Float. Please help. Thx...

Re: Mate 3s not saving configuration.

Posted: Wed Jun 24, 2020 3:59 pm
by Mike Curran
Do you have your charge controller set to enable grid-tie mode? This can be done thru the Mate3:
Screenshot_20200624-185654_Adobe Acrobat.jpg
Also note, offset is not a programmable function per the 8048 manual:
Screenshot_20200624-190720_Adobe Acrobat.jpg

Re: Mate 3s not saving configuration.

Posted: Wed Jun 24, 2020 6:50 pm
by marckeez
I had my VFXR 3648 A set to grid mode and manually set the charge controller to GT mode (as instructed in a vendor video) but they both reverted back to non Grid Tied mode. Just reset both to Grid Tied mode and did a save. I recently had a issue with bad cable and system was not getting a good PV connection to the charge controller. I replaced a cable and GFI breaker and needed to totally power down the system. This may be why the off-set was not saved. Does the VFXR 3648 A not save the off-set like the Radian?

Re: Mate 3s not saving configuration.

Posted: Thu Jun 25, 2020 4:09 am
by Mike Curran
Sorry, thought you had a Radian, but in any case offset is not programmable for a VFXR either.
Screenshot_20200625-070502_Adobe Acrobat.jpg
I am not an expert on offset but just from reading the manual, the important thing to note is that your inverter will go into and leave "offset" operation depending on what's happening with your system at the time. You cannot set it and expect it to stay enabled.