Siemens CU230P-2 HVAC Parameter Manual page 174

Parameters
List of Parameters
p1326[0...n] V/f control programmable characteristic frequency 4 / Vf char f4
Access level: 3
Can be changed: U, T
Min
0.00 [Hz]
Description: The programmable characteristic for the V/f control is defined using 4 points and 0 Hz/p1310.
This parameter specifies the frequency of the fourth point along the characteristic.
Dependency: Selects the freely programmable characteristic using p1300 = 3.
The following applies to the frequency values: p1320 <= p1322 <= p1324 <= p1326. Otherwise, a standard charac-
teristic is used that contains the rated motor operating point.
Refer to: p1310, p1311, p1320, p1321, p1322, p1323, p1324, p1325, p1327
Note: Linear interpolation is carried out between the points 0 Hz/p1310, p1320/p1321 ... p1326/p1327. For output fre-
quencies above p1326, the characteristic is extrapolated with the gradient between the characteristic points
p1324/p1325 and p1326/p1327.
The voltage boost when accelerating (p1311) is also applied to the freely programmable V/f characteristic.
p1327[0...n] V/f control programmable characteristic voltage 4 / Vf char U4
Access level: 3
Can be changed: U, T
Min
0.0 [Vrms]
Description: The programmable characteristic for the V/f control is defined using 4 points and 0 Hz/p1310.
This parameter specifies the voltage of the fourth point along the characteristic.
Dependency: Selects the freely programmable characteristic using p1300 = 3.
Refer to: p1310, p1311, p1320, p1321, p1322, p1323, p1324, p1325, p1326
Note: Linear interpolation is carried out between the points 0 Hz/p1310, p1320/p1321 ... p1326/p1327.
The voltage boost when accelerating (p1311) is also applied to the freely programmable V/f characteristic.
p1330[0...n] CI: V/f control independent voltage setpoint / Vf V_set independ.
Access level: 3
Can be changed: T
Min
-
Description: Sets the signal source for the voltage setpoint for V/f control with an independent voltage setpoint (p1300 = 19).
Dependency: Selects the V/f control with independent voltage setpoint via p1300 = 19.
Refer to: p1300
p1333[0...n] V/f control FCC starting frequency / V/f FCC f_start
Access level: 3
Can be changed: U, T
Min
0.00 [Hz]
Description: Sets the starting frequency at which FCC (Flux Current Control) is activated.
Dependency: The correct operating mode must be set (p1300 = 1, 6).
Warning: An excessively low value can result in instability.
Note: For p1333 = 0 Hz, the FCC starting frequency is automatically set to 6 % of the rated motor frequency.
1-174
Calculated: p0340 = 1,3
Scaling: -
Max
10000.00 [Hz]
Calculated: p0340 = 1,3
Scaling: -
Max
10000.0 [Vrms]
Calculated: -
Scaling: p2001
Max
-
Calculated: p0340 = 1
Scaling: -
Max
3000.00 [Hz]
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.00 [Hz]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.0 [Vrms]
Data type: U32 / FloatingPoint32
Data set: CDS, p0170
Factory setting
0
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.00 [Hz]
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