Siemens SINAMICS S120 System Manual page 91

Parameter settings for "INFEED" drive unit
In the project, right click on "INFEED" under "Infeeds" and then select "Expert list".
Table 7- 9 Parameter settings for "INFEED" drive unit
Parameter Value
p0210
1)
p0840[0] e.g. INFEED.r2090.0
p0844[0] e.g.
CONTROL_UNIT.r0722.0
p0852[0] e.g. 1
p0860 e.g.
CONTROL_UNIT.r0722.1
p0861 e.g. 200 ms
Pulse frequency wobbulation
p1810.2 e.g. no
p1810.4 e.g. no
p5526[0].4 e.g. no
p5526[1].4
p1811 e.g. 0 %
1)
Grid infeed
System Manual, 04/2015, A5E03347436A
7.5 Commissioning example of an infeed with dynamic grid support for a power grid
Comment
Enter the supply voltage for the grid converter (corresponds to the rated value
of the voltage at the transformer secondary or at the AIM connecting terminals)
BI: On/Off1 via PROFIdrive PZD1, bit 0
On command for the Active Line Module
BI: 1.OFF2 in CDS 0 via DI0 (-X122.1) of the Control Unit
Signal sink for the OFF2 command of the Active Line Module
BI: Enable operation
Enable for transformer magnetization and controlled grid infeed operation
BI: Grid contactor, feedback signal
The feedback signal contact of the circuit breaker must be connected in order
that the transformer magnetization function operates correctly. For this exam-
ple, a connection is made to terminal DI1 (-X122.2) of the Control Unit.
Grid contactor monitoring time
1)
Monitors activation/feedback signal from the circuit breaker.
The value to be set depends on the switching times of the switch being used.
Activate pulse frequency wobbulation (access level 4)
Wobbulating (sweeping) the pulse of frequency ensures that the pulse-
frequency voltage and current components are distributed over a frequency
range. This makes sense if the distortion power at the individual frequencies
should be reduced between 2 kHz and 9 kHz.
Pulse frequency wobbulation (sweeping) in current controlled operation results
in additional harmonics in the current measured values. This is the reason that
the function should only be activated if this is necessary with the line filter used
in order to maintain pulse-frequency interference limit values.
Wobbulation is generally not required when using an Active Interface Module!
Inhibit wobbulation (sweep) amplitude (access level 4)
If pulse frequency wobbulation is always activated with p1810.2, using p1810.4
the wobbulation amplitude p1811 can be enabled for normal operation of the
Active Line Module.
Inhibit wobbulation (sweep) amplitude (access level 4)
If pulse frequency wobbulation is always activated with p1810.2, using p5526.4
the wobbulation amplitude p1811 can be enabled for operation with dynamic
grid support (p5501 = 1).
Pulse frequency wobbulation amplitude (access level 4)
If wobbulation is activated and enabled, the wobbulation amplitude can be se-
lected using this adjustable parameter. The higher the setting value, the wider
the pulse frequency spectrum of the output voltage; however, the harmonics in
the current measured values are also higher. Generally, setting values of about
5 % are sufficient.
Commissioning
91