Armature Converter Alpha W Limit / Arm Alpha W Lim; Armature Average Number Of Line Periods / Arm Line Per No.; Control Word For Armature Pre-Control / A Prec Stw; Closed-Loop Armature Current Control Integral Comp Activation - Siemens SINAMICS DCM List Manual

2 Parameters
2.2 List of parameters
p50151[0...n]

Armature converter Alpha W limit / Arm Alpha W lim

DC_CTRL Can be changed: U, T
Data type: FloatingPoint32
P-Group: -
Not for motor type: -
Min
120.0 [°]
Description: Sets the inverter stability limit for the firing angle of the armature converter.
Dependency: Refer to: r53190
Note: The status of the Alpha W limit is shown in r53190.8.
p50152[0...n]

Armature average number of line periods / Arm line per no.

DC_CTRL Can be changed: T
Data type: Unsigned16
P-Group: -
Not for motor type: -
Min
1
Description: Setting of the number of line periods for line frequency correction in the armature circuit.
Note: The internal line synchronization for the armature 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.
p50153[0...n]

Control word for armature pre-control / A prec STW

DC_CTRL Can be changed: T
Data type: Integer16
P-Group: -
Not for motor type: -
Min
0
Description: Sets the control word for armature pre-control.
Value: 0:
1:
2:
3:
Note: If value = 3:
For pre-control, in this case the EMF is applied with a value of 0 (recommended setting in the case of supplying high
inductances from armature terminals, e.g. solenoids, field supply).
p50154[0...n] Closed-loop armature current control integral comp activation / Ia ctr I comp act
DC_CTRL Can be changed: T
Data type: Integer16
P-Group: -
Not for motor type: -
Min
0
Description: Sets activation/de-activation of the integral component on the armature current controller.
Value: 0:
1:
410
Armature pre-control disabled and pre-control = 165 °
Armature pre-control active
Armature pre-control active EMF only with torque direction chge
Armature pre-control active EMF irrelevant
Deactivated
Activated
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
165.0 [°]
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
20
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
3
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
1
List Manual (LH8), 02/2015, 6RX1800-0ED76
Access level: 3
Func. diagram: 6860
Unit selection: -
Expert list: 1
Factory setting
150.0 [°]
Access level: 3
Func. diagram: 6950
Unit selection: -
Expert list: 1
Factory setting
20
Access level: 2
Func. diagram: 6855
Unit selection: -
Expert list: 1
Factory setting
1
Access level: 2
Func. diagram: 6855
Unit selection: -
Expert list: 1
Factory setting
1
SINAMICS DCM