Siemens SINAMICS V20 Series, Руководство по эксплуатации

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Parameter list
7.2 Parameter list
SINAMICS V20 Inverter
182
Operating Instructions, 07/2012, A5E03728167
Parameter Function Range Factory
default Can be
changed Scaling Data
set Data
type Acc.
Level
In linear V/f for textiles, FCC for textiles, or external V/f modes only the I_max voltage controller is used to
reduce current (see P1345 and P1346).
Note: The I_max controller can be disabled by setting the frequency controller integral time P1341 to zero. This
disables both the frequency and voltage controllers.
Note that when disabled, the I_max controller will take no action to reduce current but overcurrent
warnings will still be generated, and the inverter will trip in excessive overcurrent or overload conditions.
P1341[0...2] Imax controller integral
time [s]
0.000 -
50.000
0.300 U, T - DDS Float 3
Integral time constant of the I_max controller.
•
P1341 = 0: I_max controller disabled
• P1340 = 0 and P1341 > 0: frequency controller enhanced integral
•
P1340 > 0 and P1341 > 0: frequency controller normal PI control
Dependency: This parameter is influenced by automatic calculations defined by P0340.
Note:
See P1340 for further information. The Factory setting depends on inverter power.
r1343 CO: Imax controller
frequency output [Hz]
- - - - - Float 3
Displays effective frequency limitation.
Dependency: If I_max controller not in operation, parameter normally shows maximum frequency P1082.
r1344
CO: Imax controller
voltage output [V]
- - - - - Float 3
Displays amount by which the I_max controller is reducing the inverter output voltage.
P1345[0...2] Imax voltage controller
proportional gain
0.000 -
5.499
0.250 U, T - DDS Float 3
If the output current (r0068) exceeds the maximum current (r0067), the inverter is dynamically controlled
by reducing the output voltage. This parameter sets the proportional gain of this controller.
Dependency: This parameter is influenced by automatic calculations defined by P0340.
Note:
See P1340 for further information. The Factory setting depends on inverter power.
P1346[0...2] Imax voltage controller
integral time [s]
0.000 -
50.000
0.300 U, T - DDS Float 3
Integral time constant of the I_max voltage controller.
• P1341 = 0: I_max controller disabled
•
P1345 = 0 and P1346 > 0: I_max voltage controller enhanced integral
• P1345 > 0 and P1346 > 0: I_max voltage controller normal PI control
Dependency: This parameter is influenced by automatic calculations defined by P0340.
Note:
See P1340 for further information. The Factory setting depends on inverter power.
r1348 Economy mode factor
[%]
- - - PERCEN
T
- Float 2
Displays the calculated economy mode factor (range 80%-120%) applied to the demanded output volts.
Economy mode is used to find the most efficient operating point for a given load. It does this by a
continuous method of hill climbing optimization. Hill climbing optimization works by slightly changing the
output volts either up or down and monitoring the change in input power. If the input power has decreased,
the algorithm changes the output volts in the same direction. If the input power has increased then the
algorithm adjusts the output volts in the other direction. Using this algorithm, the software should be able to
find the minimum point on the graph between input power and output volts.
Notice: If this value is too low, the system may become unstable.