When the panel says “VS on = Open” - how does one derive the state of the Aux relay contact from this? Does this mean the NO contact is OPEN or the NC contact is OPEN?
Thank you
Guess that’s the only way that makes sense.
When the relay is OFF, the NC contact is connected to common, the NO is open. When energised, the NO contact is connected to common and the NC is open you also have the invert VS box ticked, which will reverse this behavior. You can always test the function with a continuity meter.
Hi Mike,
You have accurately described a standard relay’s operation.
What I am looking for (without using a DMM) is the meaning of “VS on= open”. Does this mean the aux relay coil is energised or does it mean the aux relay coil is not energised. It is very vague isn’t it?
VS = Virtual Switch
The virtual switch is open = no continuity (unless you invert it using the checkbox)
As stated VS means virtual switch.
Are you asking about this or the Aux relay, as theyare two different things.
Hi Lx,
Your answer does not explain the logical link between the VS and the Aux relay. In my question above, the panel shows the VS has been selected to drive the Aux relay. The Invert VS usage is also selected.
What I am looking for (without using a DMM) is the meaning of “VS on= open”. Does this mean the aux relay coil is energised or does it mean the aux relay coil is not energised. It is very vague isn’t it?
Hi 1234 enough.
Yes the VS and Aux relay are different. The former is a software concept and latter is hardware.
In my question above, the panel shows the VS has been selected to drive the Aux relay. The Invert VS usage is also selected.
What I am looking for (without using a DMM) is the meaning of “VS on= open”. Does this mean the aux relay coil is energised or does it mean the aux relay coil is not energised. It is very vague isn’t it?
Hi Ludo,
Which way?
Normally the NO contact state is the primary, as not all relais have an NC contact.
If VS=on, then relay will be energised, except if the invert check box is ticked.
Thank you Mike, I’ll take this as read, but is this documented anywhere?
Happy New Year
David
probably not as deemed obvious…(to an engineer perhaps).
Happy New Year. Day 2.
Hi
Vhen VS is active AUX relay is open.
Vhen VS is not active AUX relay is closed.
This is true if invert virtual switch is ticked.
Else it is reversed.
Hi Sten,
Sorry but your answer does not help me.
“Vhen VS is active AUX relay is open.
Vhen VS is not active AUX relay is closed.”
AUX relay coil is either energised/not energised. AUX relay has two contacts - Normally Open and Normally Closed. Your answer is not enough to define its behaviour.
Do you mean:
When VS is active AUX relay is energised and Normally Open contact is closed?
Dave
@DavidQ
I think you are at the point where you have to try it to see.
Possibly it will be easier to understand once it is experienced. Sometimes that is the way to learn.
Hey LX thanks. I’ve put in a feature request to improve the terminology. The panel message: VS on=open is nonsensical. It does not intuitively explain the status of the Aux relay Normally Open or Normally Closed contacts.
Hi
When the multiplus is not connected to any power what so ever.
The NO COM NC refere to the state of the relay. NO=Normaly Open (no connection). NC=Normaly Connected. COM=Common connection
the state VS=open or VS=closed refer to the function the multiplus is programed to.
Hope this explanation helps. Else try it out as LX suggest.
Hi Sten,
This is correct. But you have not tied the VS state to the Aux relay state.
In my OP I have selected “drive aux relay”. This means the VS operates the Aux relay. But the panel information does not define the state of the relay (and its two contacts) vs the state of VS.
In the panel settings in my OP:
Does VS on = Aux Relay NO Contact OPEN or Closed ? This is my point.
Yes you can DMM it (and of course I have). I am pointing out that the Victron software could do with some improvement. And I have separately made a feature request,