Lenze EVS93 Series, System Manual

Page: 195 / 386

Function library
Function blocks
3.2.50 Extrapolation (EXTPOL2)
3−167
l
EDSVS9332K−EXT EN 4.0
3.2.50 Extrapolation (EXTPOL2)
Optimisation of running features (function like EXTPOL1)
Smoothing of a low−resolution absolute value encoder (angle encoder)
Position detection while line shaft" crosses zero
fb_extpol2
E X T P O L 2
E X T P O L 2 - P H O U T
C 1 3 7 5 / 2
E X T P O L 2 - P H I N
C 1 3 7 4 / 2
E X T P O L 2 - S T A T
E X T P O L 2 - L I M
C 1 3 7 9
E X T P O L 2 - D F O U T
Signal Source
Note
Name Type DIS DIS format CFG List
EXTPOL2−PHIN ph 1425/2 ph 1374/1 Position input
EXTPOL2−STAT d 13461 − − HIGH = extrapolation on
LOW = new data at input −PHIN
EXTPOL2−LIM d 13462 − − HIGH = time limit of C1379 exceeded, extrapolation is cancelled or
master angle is in standstill
LOW = time limit not exceeded, master angle running
EXTPOL2−PHOUT ph 13461 − − Extrapolated position of input PHIN
EXTPOL2−DFOUT phd − − − Extrapolated speed difference signals
The output may be only used up to max. 10 extrapolation cycles per ms
(C1379 = max. 10 ms)
Tip!
Please observe the computing time of the FBs.
l
5 s (EXTPOL1)
l
10 s (EXTPOL2)
Function block interconnection