I am having a problem with implementing hand wheel control on one of our customers machines.
The machine is using a PMAC Brick controller. A hand wheel is connected to an axis channel on the Brick. I am using Ixx6=1 to engage the master.
A problem occurs when we are slaved and move the master axis. Of course the slave follows and this works well. However when we disengage the slave from the master, and execute a motion program, the axis that was slaved moves the amount loaded into the master position register, then it moves and executes the program as it should.
We tried to zero the master position register of the slaved axis; this causes the axis to move abruptly to the original position.
We have tried executing the PMATCH command from within our PLC and this doesn’t seem to do anything.
Can we manipulate the MXX61..64 variables to eliminate this unwanted motion? Do you have any suggestions on how we should implement this hand wheel so that when we disengage it and run a program the programs run normally.