Originally Posted by
gus
Have you adjusted trailing error? It changes when you change the value of that parameter.
Write a program that rapids the machine back and forth as far as it can go.
LBL 1
Y0 F2000
Y11 f2000
LBL 0
CALL LBL 1 REP 99
set the control to LAG mode
strt with the override pot low so it does not error, and turn the TACHO pot so that the lag at the center of travel is as low as you can get it. Increase overrride until you can get it to run at max feedrate
YOu must do this every time you change the value of that parameter.
The BALANCE pot also helps.
When the machine is in enabled and not in handwheel mode it, in normal readout mode[not LAG] set it to read zero and turn the pot a small amount back and forth so that basically the machine hunts from + 0001 to -.0001 or something
It is usually not a problem unless the machine is fighting to move in one direction all the time