Hi all
I have noticed an Odd behavior on my XW60 ( the charge controller for the XW
inverter series). It will on occasion spend all day as a PWM only and not go
into MPPT mode. It will sometimes start up on a 102 Voc string at 0.6 volts
above battery voltage, and stay there (ie take 24.6 battery and stay at a
module string voltage of 25.3 volts all day. If I disconnect the array or the
battery, and reconnect it will go into MPPT most of the time, and the string
input to controller is at 70 volts . it is like it locks up into a diode, and
wastes a lot of energy.
Darryl
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