Finally started working on this machine, got rid of the old controls and computer and mounted the Mesa cards. Getting familiar with all the inner workings as much as possible on a non functioning machine, and planing everything humanly possible upfront, so here is a short burst of info:
-motors have brakes, tacho and serial absolute encoders
-long axis has a separate absolute encoder with separate rack and pinion, brake on the motor and pneumatic brake on the rails, had separate control
-spindle looks like having 1to1 ratio on tool 1 so good for rigid tapping, can not check other tools for now
-tool changer has another brake and a clutch inside
-a lot of pneumatic valves, relays, end switches, pressure sensors, clamps etc
After a detailed check, found out that the long axis encoder has "direction" wire, others do not.
So it looks like the serial absolute encoders on 3 normal axis and spindle are usual "clock +-" and "data+-" type, so hopefully they can be made to work with 7i74, and this is the first thing i have to check.
The setup is: 6i25=>7i77&7i74=>7i70&7i71, already flashed with 5i25_7i77_7i74.bit file
---how do i go about using the 7i74 as half SSI and half SSerial? I need 4 encoders and 7i70 and 7i71, nothing more
Attaching some pictures of the old and the new.
Regards,
Tom
P.S.
Attached pictures of the encoders, the one on the long X axis is not the same as the other 4, it has a wire labelled "richtung" meaning direction???
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