PWM input voltage, Xantrex C40 test video
here is the Video link, the fluke is plugged directly into the Solar panel drop wiring before it enters the controller right above the panel input protection fuse, that i use for a disconnect just c...
Forum Discussion
No.. i don't disagree
i do agree its controlling
i have always said it was controlling, as long as the panel voltage was high enough..
( the opposing view was "direct connection until battery voltage rises, then PWM )
the point i'm making with THIS controller ,, IF there is a point to make ?
is that panel output is NOT dragged down to battery voltage
it was never at battery V in any of these readings ( there is always a difference between the controller output and the panel input )
as readings show there is a drop between controller and battery which varies with (2) things the controller charge amps and the inverter load (the number amps being diverted for inverter load instead of charging)
controller goes to batteries, then goes to inverter from there
Notice the lowest amps correspond to the lowest panel voltage early in the morning
the panel voltage went up, the amps went up, AND the voltage difference went up
NOT down, even though the batteries were taking more amps, the panel voltage was over 2v more than the controller output
yes output volts did drop after the controller was "satisfied" Vtabs ?
but there was 2v or more difference between panel and controller before that happened
in other words, it "controls voltage all the time" or at least appears to do so
i do agree its controlling
i have always said it was controlling, as long as the panel voltage was high enough..
( the opposing view was "direct connection until battery voltage rises, then PWM )
the point i'm making with THIS controller ,, IF there is a point to make ?
is that panel output is NOT dragged down to battery voltage
it was never at battery V in any of these readings ( there is always a difference between the controller output and the panel input )
as readings show there is a drop between controller and battery which varies with (2) things the controller charge amps and the inverter load (the number amps being diverted for inverter load instead of charging)
controller goes to batteries, then goes to inverter from there
Notice the lowest amps correspond to the lowest panel voltage early in the morning
the panel voltage went up, the amps went up, AND the voltage difference went up
NOT down, even though the batteries were taking more amps, the panel voltage was over 2v more than the controller output
yes output volts did drop after the controller was "satisfied" Vtabs ?
but there was 2v or more difference between panel and controller before that happened
in other words, it "controls voltage all the time" or at least appears to do so
