reading schematic
reading schematic
(OP)
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.
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.






RE: reading schematic
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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RE: reading schematic
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.