Parameters
List of Parameters
1-54
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
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, p0341, p0342
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).
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).
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 demagnetizing 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 demagnetizing 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.
Dependency:
Refer to: p0625, r1912
Caution:
This parameter is automatically preset for motors from the motor list (p0301). When selecting a catalog motor, this
parameter cannot be changed (write protection). 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).
r0345[0...n]
Nominal motor starting time / Mot t_start_rated
Access level:
3
Calculated:
-
Data type:
FloatingPoint32
Unit:
[s]
Scaling:
-
Data set:
MDS
p0346[0...n]
Motor excitation build-up time / Mot t_excitation
Access level:
3
Calculated:
p0340 = 1,3
Data type:
FloatingPoint32
Can be changed:
C(3), U, T
Scaling:
-
Data set:
MDS
Min Max Factory
setting
0.000 [s]
20.000 [s]
0.000 [s]
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:
-
Data set:
MDS
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:
-
Data set:
MDS
Min Max Factory
setting
0.00000 [Ohm]
2000.00000 [Ohm]
0.00000 [Ohm]
Содержание CU230P-2 CAN
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