U/F Control Programmable Characteristic Voltage 4 / Uf Char U4; Ci: U/F Control Independent Voltage Setpoint / Uf U_Set Independ.; Voltage Limiting / U_Lim; U/F Control Fcc Starting Frequency / U/F Fcc F_Start - Siemens SINAMICS G150 Manual

Note: Linear interpolation is carried out between the points 0 Hz/p1310, p1320/p1321 ... p1326/p1327. For output
frequencies 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 U/f characteristic.
p1327[0...n]

U/f control programmable characteristic voltage 4 / Uf char U4

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: U/f open-loop control
Not for motor type: -
Min
0.0 [Vrms]
Description: The programmable characteristic for the U/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 U/f characteristic.
p1330[0...n]

CI: U/f control independent voltage setpoint / Uf U_set independ.

VECTOR_G Can be changed: T
Data type: Unsigned32 / FloatingPoint32
P-Group: U/f open-loop control
Not for motor type: -
Min
-
Description: Sets the signal source for the voltage setpoint for U/f control with an independent voltage setpoint (p1300 = 19).
Dependency: Selects the U/f control with independent voltage setpoint via p1300 = 19.
Refer to: p1300
p1331[0...n]

Voltage limiting / U_lim

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: -
Not for motor type: -
Min
50.00 [Vrms]
Description: Limiting the voltage setpoint.
This means that the output voltage can be reduced with respect to the calculated maximum voltage r0071 and the
start of field weakening.
Note: The output voltage is only limited if, as a result of p1331, the maximum output voltage (r0071) is fallen below.
p1333[0...n]

U/f control FCC starting frequency / U/f FCC f_start

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: U/f open-loop control
Not for motor type: -
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.
SINAMICS G130/G150
List Manual (LH2), 04/2014, A5E03263479A
Calculated: CALC_MOD_REG
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
10000.0 [Vrms]
Calculated: -
Dyn. index: CDS, p0170
Units group: -
Scaling: p2001
Max
-
Calculated: -
Dyn. index: DDS, p0180
Units group: 5_1
Scaling: -
Max
2000.00 [Vrms]
Calculated: CALC_MOD_ALL
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
3000.00 [Hz]
2 Parameters
2.2 List of parameters
Access level: 3
Func. diagram: 6301
Unit selection: -
Expert list: 1
Factory setting
0.0 [Vrms]
Access level: 3
Func. diagram: 6301
Unit selection: -
Expert list: 1
Factory setting
0
Access level: 3
Func. diagram: 6300
Unit selection: p0505
Expert list: 1
Factory setting
1000.00 [Vrms]
Access level: 3
Func. diagram: 6301
Unit selection: -
Expert list: 1
Factory setting
0.00 [Hz]
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