hi all. i have an allan bradley 1336 impact variable frequency drive for the spindle on a hardinge chnc4 retrofit. the vfd has the ability to be driven with a step pulse. i have it connected with mach pin 8 outputting to the drive.index pulse is thru slotted disc on motor pulley.
the drive has feedback from the existing heindehain 1024 encoder . all i can say is wow! ask for 1589 rpm, get 1589 rpm. enter 472,
get 472.
after reading about others and there trials of getting the analogue set up, i was looking to that part of the retrofit with trepidation.up and running in 1/2 hour.
anyone else using step pulse with a vfd?