2 Parameters
2.2 List of parameters
SINAMICS G120 CU250S-2 Control Units
272
List Manual, 09/2017, A5E33842890
Description:
Sets the flux threshold value for enabling the speed setpoint and the end of magnetizing (r0056.4).
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1), "Dynamic Drive Control" (DDC, p0096
= 2)
Note:
The parameter only has an influence if the flux actual value reaches the threshold value p1573 more quickly during
magnetizing than the time set in p0346. This is generally the case when selecting fast magnetization (p1401 bit 6).
The parameter has no influence for flying restart (see p1200) and after DC braking (see p1231).
Description:
Sets a dynamic voltage reserve.
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p0500
Note:
In the field weakening range, it must be expected that the control dynamic performance is somewhat restricted due to
the limited possibilities of controlling/adjusting the voltage. This can be improved by increasing the voltage reserve.
Increasing the reserve reduces the steady-state maximum output voltage (r0071).
Description:
Sets the limit of the voltage target value.
In steady-state field weakening operation this corresponds to the required output voltage.
The value of 100% refers to p0304.
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Note:
The output voltage is only limited if the maximum output voltage (r0071) minus the voltage reserve (p1574)
corresponds to a value higher than p1575.
Limiting via p1575 allows the influence of the voltage ripple of the line supply voltage to be eliminated at the operating
point.
Description:
Sets the efficiency optimization.
When optimizing the efficiency, the flux setpoint of the closed-loop control is adapted as a function of the load.
For p1580 = 100 %, under no-load operating conditions, the flux setpoint is reduced to 50 % of the rated motor flux.
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
p1573[0...n]
Flux threshold value magnetizing / Flux thresh magnet
Access level:
3
Calculated:
-
Data type:
FloatingPoint32
Can be changed:
U, T
Scaling:
PERCENT
Dyn. index:
DDS, p0180
Unit group:
-
Unit selection:
-
Func. diagram:
6722
Min Max
Factory
setting
10.0 [%]
200.0 [%]
100.0 [%]
p1574[0...n]
Voltage reserve dynamic / U_reserve dyn
Access level:
3
Calculated:
p0340 = 1,3,5
Data type:
FloatingPoint32
Can be changed:
U, T
Scaling:
-
Dyn. index:
DDS, p0180
Unit group:
5_1
Unit selection:
p0505
Func. diagram:
6723, 6724
Min Max
Factory
setting
0.0 [Vrms]
150.0 [Vrms]
10.0 [Vrms]
p1575[0...n]
Voltage target value limit / U_tgt val lim
Access level:
4
Calculated:
-
Data type:
FloatingPoint32
Can be changed:
U, T
Scaling:
-
Dyn. index:
DDS, p0180
Unit group:
-
Unit selection:
-
Func. diagram:
6725
Min Max
Factory
setting
50.00 [%]
300.00 [%]
200.00 [%]
p1580[0...n]
Efficiency optimization / Efficiency opt.
Access level:
3
Calculated:
-
Data type:
FloatingPoint32
Can be changed:
U, T
Scaling:
-
Dyn. index:
DDS, p0180
Unit group:
-
Unit selection:
-
Func. diagram:
6722
Min Max
Factory
setting
0 [%]
100 [%]
0 [%]