Installation manual
CNC 8055
CNC 8055i
MACHINE PARAMETERS
6.
SOFT: V02.2X
·213·
Axis parameters
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. Its value represents 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 [axis parameter 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 axis parameter 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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