reading schematic

[Sanchez01]

Hello
I need help interpreting the rotary switch (CHR10 type) schematic.
I have drawn part of the vendor drawing that I need help with.
How do you read this? Say switch is on A position, does this mean contacts 1-2, 5-6 and 9-10 are closed? If B is chosen, 3-4, 7-8 and 11-12 would be closed then?
If that’s true then whether I select A or B, I end up energizing both 4-A1 and 4-A2 relays right? The idea was to energize one relay at time based upon the switch A or B position.

 

[jraef]

I believe your interpretation of the switch diagram is correct, at least that's how I would read it. But that control diagram makes no sense even without your description, and with your description of the desired sequence of operation it's even worse.

All it sounds like you wanted was a changeover switch, either A or B. That only needed 2 contacts. But your diagram shows no source even if we imply a common on the other side of the coils.

Poor execution.

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[Sanchez01]

I think I got it now.
I was missing the X and Y nodes and that makes a difference.
Say X (assume a relay) is energized then 4-A1 would energize if position “A” is selected in the rotory switch (43GF) as contact 1-2 would close and so would 5-6 but since 3-4 is open, 4-A2 wouldn’t energize. Now if Y is energized (X off) with switch still in A position, 4-A2 would energize. This is what I was expecting but finally realized how.