Lenze EVS9332xS - Manual (Page 152)

Function library
Function blocks
3.2.37 Gearbox compensation (GEARCOMP)
3−100
l
EDSVS9332S−EXT EN 2.0
3.2.37 Gearbox compensation (GEARCOMP)
Purpose
Compensates elasticities in the drive train (e.g. gearbox torsion).
Implementation of an adaptive linkage of e.g. the phase setpoint (32 bits) and the torque feedforward
control (14 bits).
G E A R C O M P
G E A R C O M P - O U T G E A R C O M P - P H I - I N
C 1 2 6 9
C 1 2 6 6
G E A R C O M P - T O R Q U E
C 1 2 6 8
C 1 2 6 5
2 1 4
+
+
C 1 2 6 0
C 1 2 6 1
C 1 2 6 2
0
2 1 5 - 1
- 2
1 5 + 1
+
+
V o r z e i c h e n
Fig. 3−95 Gearbox compensation (GEARCOMP)
Signal Source Comment
Name Type DIS DIS format CFG List
GEARCOMP−TORQUE a C1268 dec [%] C1265 2 Input value
GEARCOMP−PHI−IN ph C1269 dec [inc] C1266 3
GEARCOMP−OUT ph − − − − Outputs the compensated phase setpoint.
Function
l The signal at GEARCOMP−TORQUE is broken down into the absolute value and the sign.
– The absolute value is limited to 2 14 (+16384) first.
l The absolute value is converted (via C1260, C1261, C1262).
l The result is evaluated with the sign and is added to the signal at GEARCOMP−PHI−IN.
Codes for the conversion of the absolute value:
Code Function Selection Comment
C1260 Offset −16383 {1} 16383
C1261 Numerator −32767 {1} 32767 Dynamic disconnection at C1261 = 0
(GEARCOMP−PHI−IN = GEARCOMP−OUT)
C1262 Denominator 1 {1} 32767