2 Parameters
2.2 List of parameters
SINAMICS G130/G150
240 List Manual (LH2), 07/2016, A5E03263479A
Value: 0: No Rs identification
1: Rs identification after switching-on again
2: Rs identification after switching-on each time
Dependency: - perform motor data identification (see p1910) with cold motor.
- enter ambient temperature at time of motor data identification in p0625.
Refer to: p0622, r0623
Notice: The calculated stator temperature can only be compared with the measured value of a temperature sensor
(KTY/PT1000) to a certain extent, as the sensor is usually the warmest point of the stator winding, whereas the
measured value of identification reflects the mean value of the stator winding.
Furthermore this is a short-time measurement with limited accuracy that is performed during the magnetizing phase
of the induction motor.
Note: The measurement is carried out:
- For induction motors
- When vector control is active (see p1300)
- if a temperature sensor (KTY/PT1000) has not been connected
- When the motor is at a standstill when switched on
When a flying restart is performed on a rotating motor, the temperatures of the thermal motor model are set to a third
of the overtemperatures. This occurs only once, however, when the CU is booted (e.g. after a power failure).
If identification is activated, the magnetizing time is determined via p0622 and not via p0346. Quick magnetizing
(p1401.6) is de-energized internally and alarm A07416 is displayed. The speed is enabled after completion of the
measurement.
Description: Sets the excitation time of the motor for the stator resistance identification after switching on again (restart).
Dependency: Refer to: p0621, r0623
Note: For p0622 < p0346 the following applies:
If identification is activated, the magnetizing time is influenced by p0622. The speed is enabled after measurement is
complete, but not before the time in p0346 has elapsed (see r0056 bit 4). The time taken for measurement also
depends on the settling time of the measured current.
For p0622 >= p0346 the following applies:
Parameter p0622 is internally limited to the magnetizing time p0346, so that p0346 represents the maximum possible
magnetizing time during identification. The entire measurement period (magnetizing plus measurement settling time
plus measuring time) will always be greater than p0346.
Description: Displays the stator resistance determined using the Rs identification after switching on again.
Dependency: Refer to: p0621, p0622
p0622[0...n] Motor excitation time for Rs_ident after switching on again / t_excit Rs_id
VECTOR_G (n/M) Can be changed: C2(3), U, T Calculated: CALC_MOD_REG Access level: 3
Data type: FloatingPoint32 Dyn. index: MDS, p0130 Func. diagram: -
P-Group: Motor Unit group: - Unit selection: -
Not for motor type: PMSM, SESM, REL Scaling: - Expert list: 1
Min Max Factory setting
0.000 [s] 20.000 [s] 0.000 [s]
r0623 Rs identification stator resistance after switch on again / Rs-id Rs aft sw-on
VECTOR_G (n/M) Can be changed: - Calculated: - Access level: 4
Data type: FloatingPoint32 Dyn. index: - Func. diagram: -
P-Group: Motor identification Unit group: - Unit selection: -
Not for motor type: PMSM, SESM, REL Scaling: - Expert list: 1
Min Max Factory setting
- [ohm] - [ohm] - [ohm]
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