Lenze DDS Global Drive PLC Developer Studio - Manual (Page 26)

Function block library LenzeElectricalShaft.lib
Special functions
2.1.3 Gearing compensation (L_GEARCOMP)
2−16
L
LenzeElectricalShaft.lib EN 1.2
2.1.3 Gearing compensation (L_GEARCOMP)
This FB compensates for elasticity in the drive chain.
L _ G E A R C O M P
d n O u t _ p
V o r z e i c h e n
n T o r q u e _ a 2 1 4
0
n O f f s e t
n N u m e r a t o r
n D e n o m i n a t o r
2 1 5 - 1
- 2 1 5 + 1
d n P h i l n _ p
Abb. 2−9 Gearing compensation (L_GEARCOMP)
VariableName DataType SignalType VariableType Note
nTorque_a Integer analog VAR_INPUT Input value
dnPhiIn_p Double Integer position VAR_INPUT Input value
dnOut_p Double Integer position VAR_OUTPUT Initial value
nOffset Integer − VAR CONSTANT RETAIN Offset
nNumerator Integer − VAR CONSTANT RETAIN Numerator, dynamic switch−off at nNumerator = 0
nDenominator Integer − VAR CONSTANT RETAIN Denominator
Parameter codes of the instances
VariableName L_GEARCOMP1 SettingRange Lenze
nOffset C1260 −16383 ... 16383 0
nNumerator C1261 −32767 ... 32767 1
nDenominator C1262 1 ... 32767 1
Functional sequence
1. The signal at nTorque is divided into the absolute value and the sign.
2. The value is converted (with nNumerator, nDenominator, nOffset ).
3. The result is evaluated with the sign and added to the signal at dnPhiIn_p