Installation manual
CNC 8035
4.
MACHINE PARAMETERS
Axis parameters
(SOFT M: V15.3X)
(S
OFT T: V16.3X)
·122·
MAXFLWE2 (P22)
Indicates the maximum following error allowed when this axis is stopped.
PROGAIN (P23)
Indicates the value of the proportional gain. It sets the command in millivolts desired for a following
error of 1 mm.
DERGAIN (P24)
Indicates the value of the derivative gain. It indicates the analog command (in millivolts)
corresponding to a change in following error of 1mm (0.03937 inches) in 10 milliseconds.
This velocity command will be added to the one calculated for the proportional gain.
To apply this gain to an axis, that axis should be working with acc/dec [a.m.p. ACCTIME (P18) other
than 0].
Possible values
Between 0 and 99999.9999 degrees or millimeters.
Between 0 and 3937.00787 inches.
Default value: 0.1 mm.
Possible values
Integers between 0 and 65535 mV/mm.
Default value: 1000 mV/mm.
Example:
A feedrate of 20000 mm/min is selected by a.m.p. G00FEED (P38) to obtain 1 mm of following
error (axis lag) for a feedrate of F = 1000 mm/min.
Command from the drive: 9.5V for a feedrate of 20000 mm/min.
Command for a feedrate of F = 1000 mm/min:
Command = (9.5/20000) x 1000 = 475 mV
Therefore "PROGAIN" = 475
Velocity command (mV)
= Following error (mm) x PROGAIN
Possible values
Integer numbers between 0 and 65535.
Default value: 0 (derivative gain not applied)
PROGAIN
DERGAIN
10 t
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