Pinout of SPWM-075-HD
Posted: Fri Mar 08, 2019 10:27 am
I have not been able to locate a pinout of the SPWM-075-HD meter in the datasheet, FAQ, or anywhere on this site. The electrical properties of each wire, even if they aren't used, should be available somewhere. Timing diagrams with setting times, maximum pulse rates, etc. would be helpful as well. I know the installation guide says to ignore the white wire, but I would like to see a connectivity diagram with the logical states/conditions of the meter connection.
It's not clear how the switches internal are wired and if there's a second switch that can be used to determine half rotations versus full rotations. There is also a double triggering issue due to bounce that could potentially be remediated with a second switch/trigger mechanism. I will post about that in another thread, though.
It's not clear how the switches internal are wired and if there's a second switch that can be used to determine half rotations versus full rotations. There is also a double triggering issue due to bounce that could potentially be remediated with a second switch/trigger mechanism. I will post about that in another thread, though.