Siemens G130 List Manual page 144

2 Parameters
2.2 List of parameters
p0344[0...n] Motor weight (for the thermal motor model) / Mot weight th mod
VECTOR_G Can be changed: C2(3), T
Data type: FloatingPoint32
P-Group: Motor
Not for motor type: -
Min
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
VECTOR_G Can be changed: -
Data type: FloatingPoint32
P-Group: Motor
Not for motor type: REL
Min
- [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: Refer to: r0313, r0333, r0336, p0341, p0342
p0346[0...n] Motor excitation build-up time / Mot t_excitation
VECTOR_G Can be changed: C2(3), U, T
Data type: FloatingPoint32
P-Group: Motor
Not for motor type: -
Min
-20.000 [s]
Description: Sets the excitation build-up time of the motor.
This involves the delay time between enabling the pulses and enabling the ramp-function generator. The induction
motor is magnetized during this time.
Caution: If there is insufficient magnetization under load or if the acceleration rate is too high, then an induction motor can stall
(refer to the note). This is especially true for sensorless vector control or U/f control.
Notice: If the parameter is set to 0 s for separately excited synchronous motors (p0300 = 5), then an excitation current
setpoint is generated even if the drive is switched off. In the base speed range, this is the no-load excitation current
(p0389). In the field-weakening range, the value is reduced with the inverse value of the actual speed. An excitation
current setpoint is not generated during de-magnetizing (p0347) and if an encoder fault is detected.
When starting or executing a flying restart for a separately excited synchronous motor without encoder or with
incremental encoder, then the voltage induced in the stator by the excitation current pulse is used to determine the
rotor position.
The length of the ramp is pre-assigned from the motor data for p0346 = 0 s. If it crystallizes out that this time is too
short, then it can be extended by entering a negative value in p0346, whereby otherwise, the excitation behavior
corresponds with that for p0346 = 0 s.
For all other motor types, p0346 is internally limited downwards to 0 s.
Note: The parameter is calculated using p0340 = 1, 3.
For induction motors, the result depends on the rotor time constant (r0384). If this time is excessively reduced, this
can result in an inadequate magnetizing of the induction motor. This is the case if the current limit is reached while
building up magnetizing. For induction motors, the parameter cannot be set to 0 s (internal limit: 0.1 * r0384).
144
Calculated: CALC_MOD_ALL
Dyn. index: MDS, p0130
Unit group: 27_1
Scaling: -
Max
50000.0 [kg]
Calculated: -
Dyn. index: MDS, p0130
Unit group: -
Scaling: -
Max
- [s]
Calculated: CALC_MOD_REG
Dyn. index: MDS, p0130
Unit group: -
Scaling: -
Max
20.000 [s]
List Manual (LH2), 07/2016, A5E03263479A
Access level: 3
Func. diagram: 8018
Unit selection: p0100
Expert list: 1
Factory setting
0.0 [kg]
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
- [s]
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0.000 [s]
SINAMICS G130/G150