It’s my turn to ask a question now…
My home has a split electricty meter, which divides usage into Day & Night.
Channel 1 of a VNB7IN is happily reading the pulses and gives a pretty accurate total consumption.
However, I’m billed in two halves.
Day & Night.
So my question is this.
If I link the same pulse into 2 channels, effectively they are both counting the same pulse.
Then I can connect a relay to pick up when the meter switches between day & night, this can connect to another channel of the VMB7IN.
Which pair of actions should I set between the 2 pulse inputs and the switch over channel.
Is it correct to use ;-
Disable when closed >> Day pulse input
Disable when open >> Night pulse input
Lock when Open >> Day pulse input
Lock when Closed >> Night pulse input
My alternative is use a relay to mechanically switch the pulses between the two inputs.
I welcome anyone’s ideas and comments.
You have a Relay 1 active at night (I don’t know how you do this!)
You have a pulse input on VMB7IN Channel 1
You have this same pulse input on VMB7IN Channel 2
Forget the third input on the 7IN coming from the relay and the electrical connection of this last module
Now, try this :
Relay 1 >> Lock channel at closed switch of VMB7IN’s Channel 1
Relay 1 >> Lock channel at opened switch of VMB7IN’s Channel 2
Thanks, I’ll give that a try.
The VMB7IN channels have the option of
Disable at Open / closed
Locked at Open / closed.
I’ll try them and see what happens.
FYI, the relay for night use was installed by the electricity supplier.
It’s a huge 80amp contactor, which feeds a totally separate electrical distribution board.
That board previously supplied power to night storage heaters. (Which have been removed now that I have fully zoned gas central heating)
All I’ll do is pick up the 240v switched output and use it to close a small 240v relay, which will close an input on the VMB7IN.
In theory, it’s sounds easy