I have a Morningstar TS-MPPT-45 charge controller I'm installing in an RV.
There is a grounding terminal in the controller chassis. I guess in a house or something you would connect this to an earth ground (?) - as it's grounding the device itself in case of a short or something (?)
They say "Do not connect the system negative conductor to this terminal". But in my system, system negative is a wire running to the frame, then to the battery negative. Obviously I don't have a true earth ground rod in an RV. What else can I do with this terminal? All I can think is that they mean not to connect the system negative conductor ***ONLY*** to that terminal. That of course wouldn't work. But in my case, does it make sense to connect the system negative wire to both connectors - serving both as the charging circuit and the chassis ground?
I can't fathom any other options.... seems ridiculous to run another parallel wire from the box to the same point on the frame as the battery line is already going.
There is a grounding terminal in the controller chassis. I guess in a house or something you would connect this to an earth ground (?) - as it's grounding the device itself in case of a short or something (?)
They say "Do not connect the system negative conductor to this terminal". But in my system, system negative is a wire running to the frame, then to the battery negative. Obviously I don't have a true earth ground rod in an RV. What else can I do with this terminal? All I can think is that they mean not to connect the system negative conductor ***ONLY*** to that terminal. That of course wouldn't work. But in my case, does it make sense to connect the system negative wire to both connectors - serving both as the charging circuit and the chassis ground?
I can't fathom any other options.... seems ridiculous to run another parallel wire from the box to the same point on the frame as the battery line is already going.
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