Lenze i950 - Calculating the Maximum Moment of Inertia

7.12.4 Calculang the maximum moment of inera
If there is no reel available, the maximum moment of inera is calculated.
Calculaon of the diameter
2
2
max
max,W M
m d
J i J
800
´
= ´ +
J
Ma
xW
kg * cm
2
Maximum moment of inera of the winding sha
J
M
kg * cm
2
Moment of inera of the motor sha
i Gearbox factor
d
max
mm Maximum diameter
m kg Mass
The constant moment of inera is primarily determined by the motor.
The moment of inera of the motor is specied in the catalogue.
Transmit the calculated or idened values to the parameters Cons
tant moment of inera
and Max. moment of inera.
Parameters for the idened values:
•
Constant moment of inera 40x5051:111
•
Ma
x. moment of inera 40x5051:112
The parameter set should be saved on the device to protect the values from being lost in the
event of a power failure!
Relevant parameters of other funcons
Address Designaon Default seng Seng range
0x5051:111 Constant moment of inera 1.0000000000 1.0000000000 ...
2147483647.0000000000
0x5051:112 Max. moment of inera 10.0000000000 1.0000000000 ...
2147483647.0000000000
Conguring the "Winder Dancer" TA
Idenfying moments of inera
Calculang the maximum moment of inera
138