Siemens Sinamics G120 Series Parameter Manual page 151

Note: P1300 = 1 : V/f with FCC (flux current control)
• Maintains motor flux current for improved efficiency.
• If FCC is chosen, linear V/f is active at low frequencies.
P1300 = 2 : V/f with a quadratic characteristic
• Suitable for centrifugal fans / pumps
P1300 = 3 : V/f with a programmable characteristic
• User defined characteristic (see P1320)
• For synchronous motors (e.g. SIEMOSYN motors)
P1300 = 5,6 : V/f for textile applications
• Slip compensation disabled.
• Imax controller modifies the output voltage only.
• Imax controller does not influence the output frequency.
P1300 = 19 : V/f control with independent voltage setpoint
The following table presents an overview of control parameters (V/f) that can be modified in relationship to P1300
dependencies:
ParNo.
p1300[3]
p1310[3]
p1311[3]
p1312[3]
p1316[3]
p1320[3]
p1321[3]
p1322[3]
p1323[3]
p1324[3]
p1325[3]
p1330[3]
p1333[3]
p1335[3]
p1336[3]
p1338[3]
p1340[3]
p1341[3]
p1345[3]
p1346[3]
p1350[3]
Sensorless vector control (SLVC, P1300 = 20,22):
SLVC can provide excellent performance for the following types of application:
• Applications which require high torque performance
• Applications which require fast respond to shock loading
• Applications which require torque holding while passing through 0 Hz
• Applications which require very accurate speed holding
• Applications which require motor pull out protection
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
Parameter name
Control mode
Continuous boost
Acceleration boost
Starting boost
Boost end frequency
Programmable V/f freq. coord. 1
Programmable V/f volt. coord. 1
Programmable V/f freq. coord. 2
Programmable V/f volt. coord. 2
Programmable V/f freq. coord. 3
Programmable V/f volt. coord. 3
CI: Voltage setpoint
Start frequency for FCC
Slip compensation
CO: U/f Slip limit
Resonance damping gain V/f
Imax freq. controller prop. gain
Imax controller integral time
Imax controller prop. gain
Imax voltage ctrl. integral time
Voltage soft start
Level
V/f
0 1 2 3 5
2 x x x x x
2 x x x x x
2 x x x x x
2 x x x x x
3 x x x x x
3 x
− − − −
3 x
− − − −
3 x
− − − −
3 x
− − − −
3 x
− − − −
3 − − − x −
3
− − − − −
3 x
− − − −
2 x x x x
−
2 x x x x
−
3 x x x x
−
3 x x x x x
3 x x x x x
3 x x x x x
3 x x x x x
3 x x x x x
Parameters
List of Parameters
SLVC VC
p1300 =
6 19 20 22 21 23
x x x x x x
x x
− − − −
x x
− − − −
x x
− − − −
x x
− − − −
− − − − − −
− − − − − −
− − − − − −
− − − − − −
− − − − − −
− − − − − −
x
− − − − −
x
− − − − −
− − − − − −
− − − − − −
− − − − − −
x x
− − − −
x x
− − − −
x x
− − − −
x x
− − − −
x x
− − − −
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