Re: Interfacing VFD with a carriage stop switch on a lathe

More detailed information:
I am using the GE-Fuji AF-300VFD on my South Bend 10 hvy lathe. I'm trying to figure out how to interface an adjustable stop switch that detects carriage position. According to the manual there is a function provided (E2-7) "Coast-to-stop". What I'm really after is "Brake-to-stop". I am using the built-in keypad to run the lathe. Had I set it up and ran it from a remote control panel, it would have been simple to wire in the auxiliary switch in series with the run command signal and thereby getting a braked stop. Or a switch wired in parallel with the key pad's stop switch would do the task, but I'd prefer not modifying the unit since the 2 wires or contacts I'm after are not unavailable externally.

I can program the unit to interface with a remote control panel or its own self contained keypad but not both simultaneously. Unless I find a solution, I'll have to be satisfied with the "Coast-to-stop" function. Any suggestions?

Thanks,
rosnekcaj

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "rosnekcaj" <jensor4@...> wrote:
>
> I am using a GE- Fuji AF-300 mini controller on my lathe and it works very well with complete variable speed control. I am using it's keypad to control start, stop and adjust the speed.
>
> I would like to install an adjustable switch to stop the motor when the carriage actuates the switch. This would be quite an asset when threading. However after much reading of the user manual, I still can't figure out how to wire it in on the control circuit terminals and then program the unit accordingly.
>
> Anyone who knows how? I'd really appreciate a description how this could be done.
>
> rosnekcaj
>