[RE-wrenches] Outback IN AC Current Too High

[Kristopher Schmid]

Hello fellow wrenches,

I have a legacy grid tied outback system that is throwing an IN AC Current
Too High error followed by an IN AC Current OK message very regularly.  I
recently replaced the dead FX3648 with a new VFXR3648A.  The original
system installer did not install a Mate.  The new inverter said that it
required a Mate3S.  I was unable to source a new one at installation time
(backordered), so I put in a used Mate3S that I had on the shelf.

I found an old thread on the Outback User Forum from 2012 that mentions
this issue, but it didn't seem to indicate a definitive solution.  It
suggested that it was potentially a firmware issue.  I had the client try
to ACK ALL in the events menu, but the inverter still showed a red error
light along with the repetitive error beeping.  I also had the client
verify that the Grid Input AC Limit matched the Grid Input breaker size (50
A).

This site is 2 hours drive and I am waiting on Wattsun engineering to
provide a replacement azimuth motor solution for the tracker.  I would like
to have a solution to this inverter issue in my back pocket when I make the
trip to replace the tracker motor.

Anyone know the current state of Outback Tech Support?

Any help is greatly appreciated,
Kris


Shine On!

Kris Schmid
Legacy Solar, LLC
137 W 1st Ave
Luck, WI 54853
www.legacysolar.com
715-653-4295
NABCEP Certified PV Installation Professional
Licensed Wisconsin Master Electrician
BSEE
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