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2 Parameters
2.2 List of parameters
Dependency:
A differentiation is made between flying restart for U/f control and for vector control (p1300).
Flying restart, U/f control: p1202, p1203, r1204
Flying restart, vector control: p1202, p1203, r1205
For synchronous motors, flying restart cannot be activated.
Refer to: p1201
Refer to: F07330, F07331
Notice:
The "flying restart" function must be used in cases where the motor may still be running (e.g. after a brief line supply
interruption) or is being driven by the load. The system might otherwise shut down as a result of overcurrent.
Note:
For p1200 = 1, 4, the following applies:
Flying restart is active after faults, OFF1, OFF2, OFF3.
For p1200 = 1, the following applies:
The search is made in both directions.
For p1200 = 4, the following applies:
The search is only made in the setpoint direction.
For U/f control (p1300 < 20), the following applies:
The speed can only be sensed for values above approx. 5 % of the rated motor speed. For lower speeds, it is
assumed that the motor is at a standstill.
If p1200 is changed during commissioning (p0010 > 0), then it is possible that the old value will no longer be able to
be set. The reason for this is that the dynamic limits of p1200 have been changed by a parameter that was set when
the drive was commissioned (e.g. p0300).
p1201[0...n]
BI: Flying restart enable signal source / Fly_res enab S_src
Access level: 3
Can be changed: T
Unit group: -
Min
-
Description:
Sets the signal source to enable the "flying restart" function.
Dependency:
Refer to: p1200
Note:
Withdrawing the enable signal has the same effect as setting p1200 = 0.
p1202[0...n]
Flying restart search current / FlyRest I_srch
Access level: 3
Can be changed: U, T
Unit group: -
Min
10 [%]
Description:
Sets the search current for the "flying restart" function.
The value is referred to the motor magnetizing current.
Dependency:
Refer to: r0331
Caution:
An unfavorable parameter value can result in the motor behaving in an uncontrollable fashion.
Note:
In U/f control mode, the parameter serves as a threshold value for establishing the current at the beginning of the
flying restart function. When the threshold value is reached, the prevailing search current is set dependent upon the
frequency on the basis of voltage inputs.
Reducing the search current can also improve flying restart performance (if the system moment of inertia is not very
high, for example).
For a reluctance motor, the parameter is only changed after the motor data identification has been carried out.
184
Calculated: -
Scaling: -
Unit selection: -
Max
-
Calculated: -
Scaling: -
Unit selection: -
Max
400 [%]
Data type: U32 / Binary
Dyn. index: CDS, p0170
Func. diagram: -
Factory setting
1
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
100 [%]
SINAMICS G120D
List Manual (LH14), 01/2016, A5E33842313
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