Siemens SINAMICS G120 Manual page 182

Parameters
List of Parameters
p1312[0...n] Voltage boost when starting / U_boost starting
Access level: 2
Can be changed: U, T
Units group: -
Min
0.0 [%]
Description: Setting for an additional voltage boost when powering-up, however, only for the first acceleration phase.
The voltage boost becomes effective for a positive setpoint increase and disappears as soon as the setpoint has
been reached. The build-up and withdrawal of the voltage boost are smoothed.
Dependency: The current limit p0640 limits the boost.
Refer to: p1300, p1310, p1311, r1315
Notice: The voltage boost results in a higher motor temperature increase.
Note: The voltage boost when accelerating can improve the response to small, positive setpoint changes.
Assigning priorities for the voltage boosts: refer to p1310
r1315 Voltage boost total / U_boost total
Access level: 3
Can be changed: -
Units group: -
Min
- [Vrms]
Description: Displays the total resulting voltage boost in volt.
r1315 = p1310 + p1311 + p1312
Dependency: Refer to: p1310, p1311, p1312
p1320[0...n] U/f control programmable characteristic frequency 1 / Uf char f1
Access level: 3
Can be changed: U, T
Units group: -
Min
0.00 [Hz]
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 first 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: p1300, p1310, p1311, p1321, p1322, p1323, p1324, p1325, p1326, p1327
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.
p1321[0...n] U/f control programmable characteristic voltage 1 / Uf char U1
Access level: 3
Can be changed: U, T
Units group: -
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 first point along the characteristic.
Dependency: Selects the freely programmable characteristic using p1300 = 3.
Refer to: p1310, p1311, p1320, p1322, p1323, p1324, p1325, p1326, p1327
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.
1-182
Calculated: -
Scaling: -
Unit selection: -
Max
250.0 [%]
Calculated: -
Scaling: p2001
Unit selection: -
Max
- [Vrms]
Calculated: p0340 = 1
Scaling: -
Unit selection: -
Max
3000.00 [Hz]
Calculated: p0340 = 1
Scaling: -
Unit selection: -
Max
10000.0 [Vrms]
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.0 [%]
Data type: FloatingPoint32
Data set: -
Factory setting
- [Vrms]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.00 [Hz]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.0 [Vrms]
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