Example Of A Compensation Value List - Beckhoff TF5200 Manual

3.3.11

Example of a compensation value list

The diagram below shows a compensation value table with the properties:
• Non-equidistant interpolation points (kw.ssfk.interval = 0)
• Bilateral compensation table (kw.ssfk.bilateral = 1)
• Position specifications in metric system (kw.ssfk.unit = 1)
• Compensation value table with 140 entries (kw.ssfk.kw_nr_max = 140). The index of the position and
setpoint entries goes from 0 to 139.
• The following values were measured at the third gauged position (table[2]):
Programmed Measured value
position pos
ith setpoint
value
(pos direction)
19866.7 μm 19856.5 μm
Example of a compensation value list
kopf.log_achs_nr 2
kopf.log_achs_name Y-ACHSE
kw.ssfk.interval 0
kw.ssfk.kw_startpos -200000
kw.ssfk.kw_nr_max 140
kw.ssfk.unit 1
kw.ssfk.bilateral 1
kw.ssfk.table[0].setpoint -200000
kw.ssfk.table[1].setpoint -199306
kw.ssfk.table[2].setpoint -198667
kw.ssfk.table[3].setpoint -198001
...
kw.ssfk.table[138].setpoint 334488
kw.ssfk.table[139].setpoint 335591
kw.ssfk.table[0].pos 0
kw.ssfk.table[1].pos 24
kw.ssfk.table[2].pos -102
...
kw.ssfk.table[139].pos -55
kw.ssfk.table[0].neg 0
kw.ssfk.table[1].neg 67
kw.ssfk.table[2].neg 80
...
kw.ssfk.table[139].neg 114
TF5200 | TwinCAT 3 CNC
Axis compensation
Measured value
neg
ith actual ith actual
value
(neg direction)
19874.7 μm
Version: 1.22
General compensation value data (kw.*)
pos calculated neg calculated
compensation value compensation value
-102 x 0.1 μm 80 x 0.1 μm
29