Siemens CU230P-2 HVAC Parameter Manual page 199

p1610[0...n] Torque setpoint static (SLVC) / M_set static
Access level: 2
Can be changed: U, T
Min
-200.0 [%]
Description: Sets the static torque setpoint for encoderless vector control (SLVC). This parameter is entered as a percentage
referred to the rated motor torque (r0333).
For encoderless vector control, when the motor model is shut down, an absolute current is impressed. p1610 repre-
sents the maximum load that occurs at a constant setpoint speed.
Notice: p1610 should always be set to at least 10 % higher than the maximum steady-state load that can occur.
Note: For p1610 = 0%, a current setpoint is calculated that corresponds to the no-load case (ASM: rated magnetizing cur-
rent).
For p1610 = 100 %, a current setpoint is calculated that corresponds to the rated motor torque.
Negative values are converted into positive setpoints in the case of induction and permanent-magnet synchronous
motors.
p1611[0...n] Supplementary accelerating torque (SLVC) / M_suppl_accel
Access level: 2
Can be changed: U, T
Min
0.0 [%]
Description: Enters the dynamic torque setpoint for the low-speed range for encoderless vector control (SLVC). This parameter
is entered as a percentage referred to the rated motor torque (r0333).
Note: When accelerating and braking p1611 is added to p1610 and the resulting total torque is converted into an appro-
priate current setpoint and controlled.
For pure accelerating torques, it is always favorable to use the torque pre-control of the speed controller (p1496).
p1616[0...n] Current setpoint smoothing time / I_set T_smooth
Access level: 4
Can be changed: U, T
Min
4 [ms]
Description: Sets the smoothing time for the current setpoint.
The current setpoint is generated from p1610 and p1611.
Note: This parameter is only effective in the range where current is injected for encoderless vector control.
r1623[0...1] Field-generating current setpoint (steady-state) / Id_set stationary
Access level: 4
Unit: [Arms]
Description: Displays the steady-state field generating current setpoint (Id_set).
Note: Index 1 shows the stationary field-generating current on the stator side in the case of separately excited synchro-
nous motors without the excitation current monitoring component (r1644).
r1624 Field-generating current setpoint, total / Id_setp total
Access level: 4
Unit: [Arms]
Description: Displays the limited field-generating current setpoint (Id_set).
This value comprises the steady-state field-generating current setpoint r1623 and a dynamic component that is only
set when changes are made to the flux setpoint.
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Calculated: -
Scaling: -
Max
200.0 [%]
Calculated: -
Scaling: -
Max
200.0 [%]
Calculated: p0340 = 1,3
Scaling: -
Max
10000 [ms]
Calculated: -
Scaling: p2002
Calculated: -
Scaling: p2002
Parameters
List of Parameters
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
50.0 [%]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.0 [%]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
40 [ms]
Data type: FloatingPoint32
Data set: -
Data type: FloatingPoint32
Data set: -
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