User Manual

List of parameters
Parameters
1-67
© Siemens AG 2008 - 2013 All Rights Reserved
SINAMICS G120 CU230P-2 Control Units List Manual (LH9), 01/2013
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.
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 acti-
vated and the motor is rotating).
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. Infor-
mation 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).
Description: Resistance of the power cable between the power unit and motor.
Caution: The cable resistance should be entered prior to motor data identification. If it is used subsequently, the difference
by which p0352 was changed must be subtracted from the stator resistance p0350 or motor data identification must
be repeated.
Note: The parameter influences the temperature adaptation of the stator resistance.
The motor identification sets the cable resistance to 20% of the measured total resistance if p0352 is zero at the
time that the measurement is made. If p0352 is not zero, then the value is subtracted from the measured total stator
resistance to calculate stator resistance p0350. In this case, p0350 is a minimum of 10% of the measured value.
The cable resistance is reset when quick commissioning is exited with p3900 > 0.
p0347[0...n] Motor de-excitation time / Mot t_de-excitat.
Access level: 3 Calculated: p0340 = 1,3 Data type: FloatingPoint32
Can be changed: C(3), U, T Scaling: - Dyn. index: MDS
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0.000 [s] 20.000 [s] 0.000 [s]
p0350[0...n] Motor stator resistance cold / Mot R_stator cold
Access level: 3 Calculated: p0340 = 1,2 Data type: FloatingPoint32
Can be changed: C(3), U, T Scaling: - Dyn. index: MDS
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0.00000 [ohm] 2000.00000 [ohm] 0.00000 [ohm]
p0352[0...n] Cable resistance / R_cable
PM230
PM240
PM250, PM260
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: C(3), U, T Scaling: - Dyn. index: MDS, p0130
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0.00000 [ohm] 120.00000 [ohm] 0.00000 [ohm]