List of Parameters
Parameters
1-155
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
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:
Sensorless vector control (SLVC, P1300 = 20,22) and vector control (VC, P1300 = 21,23):
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
Restrictions:
SLVC /VC is dependent on the accuracy of the motor model being used and the measurements being performed by
the inverter.
There are therefore certain restrictions on the use of SLVC / VC:
ParNo. Level
0 1 2 3 5 6 19 20 22 21 23
p1300[3] 2 x x x x x x x x x x x
p1310[3] 2 x x x x x x x
−−−−
p1311[3] 2 x x x x x x x
−−−−
p1312[3] 2 x x x x x x x
−−−−
p1316[3] 3 x x x x x x x
−−−−
p1320[3] 3
−−−
x
−−−−−−−
p1321[3] 3
−−−
x
−−−−−−−
p1322[3] 3
−−−
x
−−−−−−−
p1323[3] 3
−−−
x
−−−−−−−
p1324[3] 3
−−−
x
−−−−−−−
p1325[3] 3
−−−
x
−−−−−−−
p1330[3] 3
−−−−−−
x
−−−−
p1333[3] 3
−
x
−−−
x
−−−−−
p1335[3] 2 x x x x
−−−−−−−
p1336[3] 2 x x x x
−−−−−−−
p1338[3] 3 x x x x
−−−−−−−
p1340[3] 3 x x x x x x x
−−−−
p1341[3] 3 x x x x x x x
−−−−
p1345[3] 3 x x x x x x x
−−−−
p1346[3] 3 x x x x x x x
−−−−
p1350[3] 3 x x x x x x x
−−−−
SLVC VC
p1300 =
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
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
Programmable V/f volt. coord. 3
V/f
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