Siemens SINAMICS G120XA - Motor Excitation Build-Up Time; Mot T_Excitation; Motor Weight (for the Thermal Motor Model); Mot Weight Th Mod; Nominal Motor Starting Time; Mot T_Start_Rated; Ratio between the Total and Motor Moment of Inertia

p0342[0...n] Ratio between the total and motor moment of inertia / Mot MomInert Ratio
Access level: 3 Calculated: CALC_MOD_ALL Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: MDS, p0130
Unit group: - Unit selection: - Function diagram: 6020, 6030,
6031, 6822
Min:
1.000
Max:
10000.000
Factory setting:
1.000
Description: Sets the ratio between the total moment of inertia/mass (load + motor) and the intrinsic motor moment of inertia/mass
(no load).
Dependency: This means that together with p0341, the rated starting (accelerating time) of the motor is calculated for a vector drive.
See also: p0341, r0345
Note
The product of p0341 * p0342 is used when the speed controller (p0340 = 4) is calculated automatically.
p0344[0...n] Motor weight (for the thermal motor model) / Mot weight th mod
Access level: 3 Calculated: CALC_MOD_ALL Data type: FloatingPoint32
Can be changed: T Scaling: - Dynamic index: MDS, p0130
Unit group: 27_1 Unit selection: p0100 Function diagram: -
Min:
0.0 [kg]
Max:
50000.0 [kg]
Factory setting:
0.0 [kg]
Description: Sets the motor weight.
Dependency: IEC drives (p0100 = 0): unit kg
NEMA drives (p0100 = 1): unit lb
NOTICE
When selecting a catalog motor (p0301), this parameter is automatically pre-assigned and is write protected.
Information 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).
r0345[0...n] Nominal motor starting time / Mot t_start_rated
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: - Dynamic index: MDS, p0130
Unit group: - Unit selection: - Function diagram: -
Min:
- [s]
Max:
- [s]
Factory setting:
- [s]
Description: Displays the rated motor starting time.
This time corresponds to the time from standstill up to reaching the motor rated speed and the acceleration with motor
rated torque (r0333).
Dependency: See also: r0313, r0333, p0341, p0342
p0346[0...n] Motor excitation build-up time / Mot t_excitation
Access level: 3 Calculated: CALC_MOD_REG Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: MDS, p0130
Unit group: - Unit selection: - Function diagram: -
Min:
0.000 [s]
Max:
20.000 [s]
Factory setting:
0.000 [s]
Parameters
7.3 Parameters
SINAMICS G120XA converter
400 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB