2 Parameters
2.2 List of parameters
SINAMICS DCM
428 List Manual (LH8), 02/2015, 6RX1800-0ED76
Description: Sets the rectifier stability limit for the firing angle of the field converter.
Dependency: Refer to: r53191
Note: The status of the Alpha G limit is shown in r53191.1.
Description: Sets the inverter stability limit for the firing angle of the field converter.
Dependency: Refer to: r53191
Note: The status of the Alpha W limit is shown in r53191.0.
Description: Setting of the number of line periods for line frequency correction in the field circuit.
Note: The internal line synchronization for the field firing pulses derived from the power terminals (line infeed) is averaged
over the number of line periods set in this parameter.
In the case of operation on "weak" power supplies with unstable frequencies (on a diesel-driven generator, for
example (isolated operation), this parameter must be set lower than for operation on "constant V/Hz" systems to
achieve a higher frequency correction speed.
Description: Sets activation/de-activation for field pre-control.
Value: 0: Deactivated
1: Activated
Note: If value = 0:
The field pre-control output is -100% (corresponds to 180 °).
p50250[0...n] Field converter Alpha G limit / Field Alpha G lim
DC_CTRL Can be changed: U, T Calculated: - Access level: 3
Data type: FloatingPoint32 Dyn. index: DDS, p0180 Func. diagram: 6915
P-Group: - Unit group: - Unit selection: -
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
0 [°] 180 [°] 0 [°]
p50251[0...n] Field converter Alpha W limit / Field Alpha W lim
DC_CTRL Can be changed: U, T Calculated: - Access level: 3
Data type: FloatingPoint32 Dyn. index: DDS, p0180 Func. diagram: 6915
P-Group: - Unit group: - Unit selection: -
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
0 [°] 180 [°] 180 [°]
p50252[0...n] Field average number of line periods / Field line per no.
DC_CTRL Can be changed: T Calculated: - Access level: 3
Data type: Unsigned16 Dyn. index: DDS, p0180 Func. diagram: 6952
P-Group: - Unit group: - Unit selection: -
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
1 20 20
p50253[0...n] Field pre-control activation / Field prec act
DC_CTRL Can be changed: T Calculated: - Access level: 2
Data type: Integer16 Dyn. index: DDS, p0180 Func. diagram: 6910
P-Group: - Unit group: - Unit selection: -
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
0 1 1
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