Leona,
Without seeing the project it's a little hard to tell. In some cases, the Type48 takes care of the MPPT, in which case you should use the Type48 voltage output as an input back to the Type94, in which case you would get a value out of the "power out" output.
Kind regards,
David
On 1/6/2012 09:20, ͫͫ wrote:Dear David,
if i want to use type 48a after type 94a , which output is better? Because the output "power_out" is always 0, and the excess_power is nagative. ps, I want to use it for the heat pump.
Best regards
Leona
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