embarassing relay wiring question

[endgrainguy]

OK, wiring this relay http://cnc4pc.com/Tech_Docs/C15-DUAL...BOARD_Rev1.pdf to start and stop spindle via VFD, At the top of the drawing where it shows wires heading to the device, what happens to the ends of the wires where they end at the words "110/220 AC or a DC voltage"? I'm assuming that DEVICE in my case is the terminals of the VFD that accept the logic inputs. Do these "loose" ends get joined, and effectively the relay just opens and closes a loop from the board to the vfd, or is something else supposed to happen? Thanks!

[roadharley2]

I hope i understand your question. The V_IN is the terminal that is comon on the relay. As you can see there is a "NO" (meaning normally open) and a "NC" (meaning normally closed) So the outputs (NO and NC) would open and close depending on the state of the relay. The wires simply terminate under the screws.

[roadharley2]

sorry, i had to re read to understand your post. Yes, this relay could be wired using the start or run input on your VFD. It would simply complete the circuit.

[Al_The_Man]

The way I interpret this is the 110/220 AC or DC voltage is the SUPPLY for the device you want to turn on via the relay on the BOB.
i.e. it is the AC or DC power supply feed.
Al.

[roadharley2]

Al,
It could be used for a power circuit or for a logic circuit. Depends on how you want to incorporate the VFD. If it were me and i was wanting to start/stop a vfd with it i would try to use the logic circuit instead of powering it up and down.....but that's me

[Al_The_Man]

Originally Posted by roadharley2 If it were me and i was wanting to start/stop a vfd with it i would try to use the logic circuit instead of powering it up and down.....but that's me

I agree, I would most likely do the same, I was just quoting the documentation as shown.
I have enough issues with BOB-used terminology as it is.
Al.
For the benefit of Endgrainguy , the contacts on the BOB would go to the Start input on the VFD.
Delete the DEVICE on the drawing.