Reverse polarity

[billw]

I made the classic rookie mistake...reversed the inputs from solar inputs. Once corrected The Classic 150 seems to be unfazed and shows normal charging/controlling. I am impressed that this machine didn't go poof. The MNGP shows no green light though. Did the designers anticipate that someone would do this? Good job!

[boB]

The Classic should be fine when reverse-polarized.

On the SPD not lighting up, is there voltage across the leads ?

Does the input of the Classic go up in voltage ?  If not, then maybe it
didn't like the reversed input connection ??  (I am a pessimist sometimes)

The SPD can also be used for AC circuits so it must work  in both directions
so I don't think that is the problem.

boB

[billw]

In the power save mode...switched off shows green light. 3.57v at spd. Voltage from array around 109-120. Controller is happy. Thanks for a sturdy machine which is rookie proof.