Gentlemen,
In my limited experience with the handwheel control on this machine I see
what I consider over run. I know it is the accumulated pulses the machine
has not completed. When the handwheel is turned faster than the machine is
able to respond the actual position lags behind the commanded position. When
I stop turning the handwheel the machine continues and finishes the motion.
I believe it would be far better if the control would truncate the command
and stop the machine as soon as the handwheel is stopped. If this is already
available would you tell me how to make it work? If it is not yet available
I would very much like to see it.
This to me is almost a safety issue. All my other machines stop the
motion as soon as the handwheel stops regardless of the speed the handwheel
has rotated. The accumulated motion is cut off. When I want to move any of
my other machines an exact amount by the handwheel I must move the handwheel
slow enough to allow the machine to keep up. Also, on my other machines I
can whip the handwheel and spin it very fast. The machines stop as soon as
the handwheel stops.
I was able to move the table in the x positive direction, stop the
handwheel, let the table move a little bit after I stopped moving the
handwheel, move the handwheel in the negative direction and cause the
machine to move in the negative direction before reaching the final
commanded postion of the x positive move. It added the x negative move to
the commanded position and when the commanded x position became more
negative than actual position the machine reversed direction. This is very
confusing as the operator would not be able to keep up with the final
position until the machine reached it and stopped moving.
I can see problems. Broken tools, scrapped parts, and other nonvalue
added modifications. If this is not a safety issue it is very much a
training and financial issue.
Thank you very much for the response and guidance received up to now. I
very much appreciate your attention.
Thanks
Stuart
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