# PDF Fanuc Power Mate i-D/H Parameter Manual

4. DESCRIPTION OF PARAMETERS
B63180EN/02
106
3624
Interval between pitch error compensation positions for each axis
NOTE
When this parameter is set, the power must be turned off
before operation is continued.
[Data type] 2word axis
[Unit of data]
Increment system ISA ISB ISC Unit
Millimeter machine 0.01 0.001 0.0001 mm
Inch machine 0.001 0.0001 0.00001 inch
Rotation axis 0.01 0.001 0.0001 deg
[Valid data range] 0 to 99999999
The pitch error compensation positions are arranged with equal spacing.
The space between two adjacent positions is set for each axis. The
minimum interval between pitch error compensation positions is limited
and obtained from the following equation:
Minimum interval between pitch error compensation positions =
maximum feedrate (rapid traverse rate)/7500
Units: Minimum interval between pitch error compensation
positions: mm, inch, deg
Maximum feedrate: mm/min, inch/min, deg/min
Example: When the maximum feedrate is 15000 mm/min, the minimum
interval between pitch error compensation positions is 2 mm.
If setting a magnification causes the absolute value of the compensation
amount at a compensation position to exceed 100, enlarge the interval
between the compensation positions by using a multiple calculated as
follows:
Multiple = maximum compensation amount (absolute value)/128
(Round the remainder up to the nearest integer.)
Minimum interval between pitch error compensation positions
= Value obtained from the above maximum feedrate x multiple
Example 1) For linear axis
D Machine stroke: 400 mm to + 800 mm
D Interval between the pitch error compensation positions: 50 mm
D No.of the compensation position of the reference position: 40
If the above is specified, the No.of the farthest compensation point in the
negative direction is as follows:
No.of the compensation position of the reference position (Machine
stroke length in the negative direction/Interval between the
compensation points) + 1
= 40 400/50 + 1
=33
No.of the farthest compensation position in the positive direction is as
follows: