Lenze i950

7.12.2 Idenfying the maximum moment of inera
The maximum motor speed Momen
t of inera idencaon - max. velocity is to be parame-
terised such that the maximum permissible circumferenal speed of the winder is not excee-
ded. The manufacturer recommends seng the value to 25 %.40x5051:115
The moment of inera is determined with a rising FALSE-TRUE edge ↗ at the parameter Iden-
fy moment of inera or the parameter Control signals Bit 31.
•
Idenfy moment of inera 40x5051:117
•
Con
trol signals 40x5050:010 bit 31
The acve idencaon run is displayed in the parameter Status signals bit 30 = TRUE and via
the parameter Technology applicaon state under Idencaon of inera.
•
St
atus signals bit 30 = TRUE 40x5050:110
•
Technology applicaon state 40x5051:001
Relevant parameters of other funcons
Address Designaon Default seng Seng range
0x5051:115 Moment of
inera idencaon - max. velocity 20.00 % 1.00 ... 100.00 %
0x5051:117 Idenfy moment of inera 0
7.12.3 Terminang the
idencaon
The idencaon is completed as soon as the motor has come to a standsll again, no errors
have been reported and xDone has been set to TRUE.
Check the moment of inera idened in the parameter Measured moment of inera for
plausibility. 40x5051:118
Execute the idencaon of the moment of inera several mes. Vary the lter me for the
speed and the torque.
Signicant non-linear fricon in the system adversely aects the
calculaon of
the moment of inera.
The results of the various idencaon runs for which the lter mes were varied must be
used t
o calculate a mean value. Aer successful idencaon, the results will be available in
the parameter Measured moment of inera. 40x5051:118
The mean value for J-const. must be used as the parameter Cons
tant moment of inera and
for J_max as the parameter Max. moment of inera .
Parameters for the moment of inera:
•
Cons
tant moment of inera 40x5051:111
•
Ma
x. moment of inera 40x5051:112
Relevant parameters of other funcons
Address Designaon Default seng Seng range
0x5051:118 Measured moment of inera - (Read only)
Conguring the "Winder Dancer" TA
Idenfying moments of inera
Terminang the
idencaon
137