Deckel FP5 Gearbox Comp

Thanks for the info Niko. I will try to look at your files and see if my feeble mind can wrap around the logic.........
I already have the Heidenhain EXE's. Picked up some EXE610c units same pinout and pin compatible with the installed scales. The FP5 already runs at 1 micron (.001mm) resolution. The 610c units allows both X5 and X10 interpolation so I can run at .0005mm. Do not really expects the accuracy to be any better but at the slower speed these giant machines run at I should not have to worry about missing pulses and might as well use the extra resolution. I hope it might improve the positioning accuracy when using the MPG.

Just to save you some time .
The rotary switch is sent to the tumbler_decode component which holds the look up table for speeds and gearbox fork positions . That would've been unpleasant in ladder . After the desired fork positions are defined and run spindle given the PLC selects the right gear . Actual fork position is given in the nets named gear-block1/2/3-back/mid/front the desired are named block1/2/3-back/mid/front-in . Ladder inside is pretty straightforward . Spindle jerk is pulsed(motor started through resistors) to match the gear teeth, but in your case it'll just be jog from the drive . That way you don't have to multiplex drive enable and analog values .

Are you using the original Deckel control console? Did you swap out the spindle speed rotary switch, rewire it or is it already set up to be de-muxed?

The machine was delivered to me without the operator panel . Just the cable sticking out . I designed a similar one which acommodates the PC and some of the mesa boards . The switch I put in has 23 positions which are converted to a 5 bit binary number on a seperate board . Would be absolutely wasteful to use 23 digital inputs .

Thanks for the information. I will eventually be getting into my console to look at the selector switch wiring. I will replace them with 5 bit encoders if necessary.

https://www.indiastudychannel.com/attachments/Resources/137809-15246-1.bmp
That's roughly the schematic of mine . Absolutely easy and simple to build even on a proto board.