Is anyone on the list familiar with AC coupling Sol-Ark inverters? We haven't been able to AC couple an existing Outback Radian system to a new system that we built with 3, Sol-Ark 12K inverters and 3, Blue Ion batteries. Each time we have tested the system the Sol-Ark inverters accept the power from the Radian inverter until we turn on the DC power from the new solar array to the Sol-Ark inverters. As soon as there is significant DC power coming from the solar array the Sol-Ark inverters freq-watt turns on for a brief second and disconnects the Radian inverter even when the Blue Ion batteries are below the programmed state of charge threshold. If we don't turn on the DC power from the new solar array the Radian will connect and stay connected.
We have been working with Sol-Ark for several months now to get this system to accept the incoming power from the Radian without freq-watt kicking in on the Sol-Ark inverters and disconnecting the Radian inverter. Sol-Ark has sent two software revisions to the Sol-Ark inverters and we are still experiencing the same problem. Can anyone think of what we might be missing and where to direct our troubleshooting efforts next? Thanks, Vince McClellan Energy Design NABCEP PV Installation Professional p. (541) 485-8122 f. (541) 338-8202 If you have received this email and are not the intended recipient please delete this email. Copying, or using any part, content, or attachment of this email is strictly prohibited.
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