Rfg Dy/Dt Time Difference / Rfg Dy/Dt T_Dif; Speed Controller Setpoint/Actual Value Difference Threshold; Smoothing Time Constant For Inertia Compensation; Speed Controller Adaptation Kp Y Coordinate 1 / Adapt Kp Y1 - Siemens SINAMICS DCM List Manual

In the case of the "Acceleration dependent upon setpoint/actual value difference" function, only the proportion of the
speed controller's setpoint/actual value difference which has an absolute value in excess of the threshold (p50543) is
switched through.
Dependency: Refer to: p50543
p50542[0...n]

RFG dy/dt time difference / RFG dy/dt t_dif

DC_CTRL Can be changed: U, T
Data type: FloatingPoint32
P-Group: -
Not for motor type: -
Min
0.00 [s]
Description: Sets the dt for the output of dy/dt in r52191.
The change in the ramp-function generator's output variable (p52190) in relation to the time set in p50542 is output in
r52191.
Dependency: Refer to: p50330, r52191
Note: Example:
A ramp-up time of 5 s is set on the ramp-function generator; in other words, a complete ramp-up from y = 0% to
100% will take 5 s.
A time difference dt of 2 s is set in p50542. This results in a dy/dt of 40% at r52191, since the set dt of 2s produces a
dy of (2 s / 5 s) * 100% = 40%.
p50543[0...n] Speed controller setpoint/actual value difference threshold / Set/act dif thresh
DC_CTRL Can be changed: U, T
Data type: FloatingPoint32
P-Group: -
Not for motor type: -
Min
0.00 [%]
Description: Sets the threshold for acceleration dependent upon the setpoint/actual value difference.
In the case of the "Acceleration dependent upon setpoint/actual value difference" function, only the proportion of the
speed controller's setpoint/actual value difference which has an absolute value in excess of the threshold (p50543) is
switched through.
Dependency: Refer to: p50541
p50546[0...n] Smoothing time constant for inertia compensation / Comp inert T
DC_CTRL Can be changed: U, T
Data type: FloatingPoint32
P-Group: -
Not for motor type: -
Min
0 [ms]
Description: Sets the smoothing time constant for the acceleration value for moment of inertia compensation.
Dependency: Refer to: p50619
p50550[0...n]

Speed controller adaptation Kp y coordinate 1 / Adapt Kp y1

DC_CTRL Can be changed: U, T
Data type: FloatingPoint32
P-Group: -
Not for motor type: -
Min
0.10
Description: Sets the y coordinate for pair of values 1 for adaptation of the P gain (Kp).
SINAMICS DCM
List Manual (LH8), 02/2015, 6RX1800-0ED76
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
1000.00 [s]
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: PERCENT
Max
100.00 [%]
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
10000 [ms]
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
2000.00
2 Parameters
2.2 List of parameters
Access level: 2
Func. diagram: 3152
Unit selection: -
Expert list: 1
Factory setting
0.01 [s]
Access level: 2
Func. diagram: 6820
Unit selection: -
Expert list: 1
Factory setting
0.00 [%]
Access level: 2
Func. diagram: 6820
Unit selection: -
Expert list: 1
Factory setting
0 [ms]
Access level: 2
Func. diagram: 6805
Unit selection: -
Expert list: 1
Factory setting
3.00
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