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ewarnerusa's avatar
ewarnerusa
Nomad
May 26, 2013

Help with custom Morningstar Tristar PWM setup

Hello. Can I get some help setting up my Morningstar Tristar 45 PWM controller with custom setpoints? I have been using it at the stock 14.6V absorption voltage profile with temperature compensation...
pianotuna's avatar
pianotuna
Nomad III
May 29, 2013
Hi Mex,

My Cobra 2500 watt MSW "tries" to maintain the output voltage and becomes more hungry for amps as the battery voltage falls. Eventually it looses that battle and the AC volts start to fall. It will "fault" at 14.5 volts DC in, so my solar system does "get in the way", on occasion, but 2 or 3 minutes of running the water heater solves that "problem" in short order.

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