4.14
Quadratic interpolation
Quadratic interpolation is used for “softer” evening out of target value jumps. The sercos
®
cycle time must be 500 µs and the position control must be used. The interpolation
method is then activated with IDNP 3040 = 1. With modulo it
cannot
be used.
An internal table with sinus-shaped trajectory is used as reference. Since the cycle time is
500µs and the cycle time of the internal position controller is 250µs, the target value is
only updated every second time.
122
sercos
®
for S300/S700
Appendix
04/2016
Kollmorgen
Setpoint
S_SETH
-8720
-7378
-8721
-7378
-8581
-5982
-8310
-5982
-7902
-4210
-7378
-4210
-6727
-2173
-5982
-2173
-5129
0
-4210
0
-3209
2173
-2173
2173
-1087
4210
0
4210
1103
5982
2173
5982
3224
7378
4210
7378
5143
8310
5982
8310
6738
8721
7378
8721
7910
8583
8310
8583
8584
7906
8721
7906
8720
6733
8583
6733
8306
5136
7906
5136
7372
3217
6733
3217
5975
1095
5136
1095
4202
-1095
3217
-1095
2165
-3217
1095
-3217
-8
-5136
-1095
-5136
-2181
-6733
-3217
-6733
-4217
red: Setpoint
green: interpolated