Siemens CU240B-2 Parameter Manual page 63

p0341[0...n] Motor moment of inertia / Mot M_mom of inert
Access level: 3
Can be changed: C(3), U, T
Units group: 25_1
Min
0.000000 [kgm²]
Description: Sets the motor moment of inertia (without load).
Dependency: IEC drives (p0100 = 0): unit kg m^2
NEMA drives (p0100 = 1): unit lb ft^2
The parameter value is included, together with p0342, in the rated starting time of the motor.
Refer to: p0342, r0345
Caution: When selecting a catalog motor (p0301), this parameter is automatically pre-assigned and is write protected. Infor-
mation in p0300 should be carefully observed when removing write protection.
Note: The product of p0341 * p0342 is used when the speed controller (p0340 = 4) is calculated automatically.
p0342[0...n] Ratio between the total and motor moment of inertia / Mot MomInert Ratio
Access level: 3
Can be changed: C(3), U, T
Units group: -
Min
1.000
Description: Sets the ratio between the total moment of inertia/mass (load + motor) and the intrinsic motor moment of iner-
tia/mass (no load).
Dependency: This means that together with p0341, the rated starting (accelerating time) of the motor is calculated for a vector
drive.
Refer to: p0341, r0345
Note: The product of p0341 * p0342 is used when the speed controller (p0340 = 4) is calculated automatically.
r0343[0...n] Rated motor current identified / Mot I_rated ident
Access level: 4
Can be changed: -
Units group: -
Min
0.00 [Arms]
Description: Displays the identified rated motor current.
p0344[0...n] Motor weight (for the thermal motor model) / Mot weight th mod
Access level: 3
Can be changed: C(3), T
Units group: 27_1
Min
0.0 [kg]
Description: Sets the motor weight.
Dependency: IEC drives (p0100 = 0): unit kg
NEMA drives (p0100 = 1): unit lb
Caution: When selecting a catalog motor (p0301), this parameter is automatically pre-assigned and is write protected. Infor-
mation in p0300 should be carefully observed when removing write protection.
Note: The parameter influences the thermal 3 mass model of the induction motor.
The parameter is not used for synchronous motors (p0300 = 2xx).
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Calculated: p0340 = 1
Scaling: -
Unit selection: p0100
Max
100000.000000 [kgm²]
Calculated: p0340 = 1
Scaling: -
Unit selection: -
Max
10000.000
Calculated: -
Scaling: -
Unit selection: -
Max
10000.00 [Arms]
Calculated: p0340 = 1
Scaling: -
Unit selection: p0100
Max
50000.0 [kg]
Parameters
List of Parameters
Data type: FloatingPoint32
Data set: MDS
Factory setting
0.000000 [kgm²]
Data type: FloatingPoint32
Data set: MDS
Factory setting
1.000
Data type: FloatingPoint32
Data set: MDS
Factory setting
- [Arms]
Data type: FloatingPoint32
Data set: MDS
Factory setting
0.0 [kg]
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