
B–63510EN/01
4. DESCRIPTION OF PARAMETERS
65
The relationship between the positioning deviation (the number of pulses
counted by the error counter) and the feedrate is expressed as follows:
feedrate
Positioning deviation =
60 (loop gain)
Unit : Positioning deviation mm, inches, or deg
Feedrate : mm/min, inches/min, or deg/min
loop gain: s
–1
1826 In–position width for each axis
[Data type] Word axis
[Unit of data] Detection unit
[Valid data range] 0 to 32767
The in–position width is set for each axis.
When the deviation of the machine position from the specified position
(the absolute value of the positioning deviation) is smaller than the
in–position width, the machine is assumed to have reached the specified
position. (The machine is in the in–position state.)
1827 In–position width in cutting feed for each axis
[Data type] Word axis
[Unit of data] Detection unit
[Valid data range] 0 to 32767
Set an in–position width for each axis in cutting feed. This parameter is
valid when bit 4 (CCI) of parameter No.1801=1.
1828 Positioning deviation limit for each axis in movement
[Data type] 2–word axis
[Unit of data] Detection unit
[Valid data range] 0 to 99999999
Set the positioning deviation limit in movement for each axis.
If the positioning deviation exceeds the positioning deviation limit during
movement, a servo alarm is generated, and operation is stopped
immediately (as in emergency stop).
Generally, set the positioning deviation for rapid traverse plus some
margin in this parameter.
1829 Positioning deviation limit for each axis in the stopped state
[Data type] Word axis
[Unit of data] Detection unit
[Valid data range] 0 to 32767
Set the positioning deviation limit in the stopped state for each axis.
If, in the stopped state, the positioning deviation exceeds the positioning
deviation limit set for stopped state, a servo alarm is generated, and
operation is stopped immediately (as in emergency stop).