Siemens G130 List Manual page 145

For permanent-magnet synchronous motors and vector control, the value depends on the stator time constant
(r0386). Here, it defines the time to establish the current for encoderless operation immediately after the pulses have
been enabled.
The current to excite the induction motor can be limited in p0644.
p0347[0...n] Motor de-excitation time / Mot t_de-excitat
VECTOR_G Can be changed: C2(3), U, T
Data type: FloatingPoint32
P-Group: Motor
Not for motor type: -
Min
0.000 [s]
Description: Sets the de-magnetizing time (for induction motors) after the inverter pulses have been canceled.
The inverter pulses cannot be switched in (enabled) within this delay time.
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 shortened too much, then this can result in an inadequate de-magnetizing of the induction motor and in
an overcurrent condition when the pulses are subsequently enabled (only when the flying restart function is activated
and the motor is rotating).
p0349 System of units motor equivalent circuit diagram data / Unit_sys mot ESB
VECTOR_G Can be changed: C2(3)
Data type: Integer16
P-Group: Motor
Not for motor type: -
Min
1
Description: Sets the actual system of units for motor equivalent circuit diagram data.
Value: 1:
2:
Dependency: The parameter can only be changed in an offline project using the commissioning software.
Refer to: p0304, p0305, p0310
Note: The reference parameter for resistances of the rated motor impedance Z = p0304 / (1.732 * p0305) is in the % units
system.
Inductances are converted into a resistance using the factor 2 * Pi * p0310.
If a reference parameter (p0304, p305, p0310) is zero, then it is not possible to make a changeover to "referred"
values (per unit values).
p0350[0...n] Motor stator resistance cold / Mot R_stator cold
VECTOR_G Can be changed: C2(3), U, T
Data type: FloatingPoint32
P-Group: Motor
Not for motor type: -
Min
0.00000 [ohm]
Description: Sets the stator resistance of the motor at ambient temperature p0625 (phase value).
Dependency: Refer to: p0625, r1912
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 motor identification routine determines the stator resistance from the total stator resistance minus the cable
resistance (p0352).
SINAMICS G130/G150
List Manual (LH2), 07/2016, A5E03263479A
System of units, physical
System of units, referred
Calculated: CALC_MOD_REG
Dyn. index: MDS, p0130
Unit group: -
Scaling: -
Max
20.000 [s]
Calculated: -
Dyn. index: -
Unit group: -
Scaling: -
Max
2
Calculated: CALC_MOD_EQU
Dyn. index: MDS, p0130
Unit group: 16_1
Scaling: -
Max
2000.00000 [ohm]
2 Parameters
2.2 List of parameters
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0.000 [s]
Access level: 1
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
1
Access level: 2
Func. diagram: -
Unit selection: p0349
Expert list: 1
Factory setting
0.00000 [ohm]
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