2 Parameters
2.2 List of parameters
SINAMICS G120 CU250S-2 Control Units
250
List Manual, 09/2017, A5E33842890
Description:
Displays the speed setpoint for the I component of the speed controller (output of the reference model after the
setpoint limiting).
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1), "Dynamic Drive Control" (DDC, p0096
= 2)
Refer to: r1438
Note:
In the standard state (the reference model is deactivated), r1438 = r1439.
Description:
Sets the signal source for the speed actual value of the speed controller.
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: r1443
Caution:
Speed control with encoder (p1300 = 21):
For the speed or position signal of the motor model there must always be a motor encoder available (evaluation via
SMC/SMI, see p0400). The actual speed of the motor (r0061) and the position data for synchronous motors continue
to come from this motor encoder and are not affected by the setting of p1440.
Interconnection of p1440:
If connector input p1440 is interconnected with an external speed actual value, the identical scaling of the speed
should be observed (p2000).
Notice:
If the speed signal is made available via blocks which can be interconnected freely, its sampling time should not
exceed that of the closed-loop speed controller (p0115[1]) and the calculation "PRIOR TO closed-loop speed
controller" should be made.
in order that for a motor speed encoder fault, a changeover can be made to encoderless operation (see p0491), the
speed signal, if it is derived from its own motor speed encoder, must be used from r0063 and not from r0061.
Description:
Sets the smoothing time constant (PT1) for the speed actual value.
Dependency:
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: r0063
Note:
The speed actual value should be smoothed for encoders with a low pulse number or for resolvers.
After this parameter has been changed, we recommend that the speed controller is adapted and/or the speed
controller settings checked Kp (p1460) and Tn (p1462).
r1439
Speed setpoint I component / n_set I_comp
Access level:
4
Calculated:
-
Data type:
FloatingPoint32
Can be changed:
-
Scaling:
p2000
Dyn. index:
-
Unit group:
3_1
Unit selection:
p0505
Func. diagram:
5030, 5040, 6031
Min Max
Factory
setting
- [rpm]
- [rpm]
- [rpm]
p1440[0...n]
CI: Speed controller speed actual value / n_ctrl n_act
Access level:
3
Calculated:
-
Data type:
U32 / FloatingPoint32
Can be changed:
T
Scaling:
p2000
Dyn. index:
CDS, p0170
Unit group:
-
Unit selection:
-
Func. diagram:
6040
Min Max
Factory
setting
- - 63[0]
p1441[0...n]
Actual speed smoothing time / n_act T_smooth
Access level:
3
Calculated:
p0340 = 1,3,4
Data type:
FloatingPoint32
Can be changed:
U, T
Scaling:
-
Dyn. index:
DDS, p0180
Unit group:
-
Unit selection:
-
Func. diagram:
4715
Min Max
Factory
setting
0.00 [ms]
50.00 [ms]
0.00 [ms]