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Parameters
Parameter list
1-156
Siemens AG 2004 All Rights Reserved
SINAMICS G List Manual, Edition 12.2004
Description:
Sets the operating mode for flying restart.
The flying restart allows the drive converter to be powered-up while the motor is still rotating. In so doing, the drive
converter output frequency is changed until the actual motor speed/velocity is found.. The motor then accelerates
up to the setpoint at the ramp generator setting.
Values:
0:
FlyRestart inactive
1:
Flying restart is always active (start in the setpoint direction)
2:
Flying restart is active after power-on, fault, OFF2 (start in the setpoint direction)
3:
Flying restart is active after fault, OFF2 (start in the setpoint direction)
4:
Flying restart is always active (start only in the setpoint direction)
5:
Flying restart is active after power-on, fault, OFF2 (start only in the setpoint direction)
6:
Flying restart is active after fault,OFF2 (start only in the setpoint direction)
Dependency:
A differentiation is made between flying restart for V/f control and for vector control (p1300).
Flying restart, V/f control: p1202, p1203, r1204
Flying restart for closed-loop vector control: p1202, p1203, r1205
Notice:
The "flying restart" function must be used in cases where the motor is possibly still 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.
It does not make sense to use "flying restart" together with the "motor holding brake function" (p1215 > 0) because
then the flying restart will always be realized with the motor stationary.
Note:
The flying restart takes, as a maximum, twice as long as the motor excitation time (p0346).
For p1200 = 2, 5, the following applies:
The "power-on" is the first power-on operation after the drive system has run-up. This is practical for motors with a
high-inertia load.
For p1200 = 1, 2, 3, the following applies: The search is made in both directions.
For p1200 = 4, 5, 6, the following applies: Search performed in the setpoint direction only.
Description:
Sets the search current for the "flying restart" function. The value is referred to the motor magnetizing current.
Dependency:
Refer to: r0331
Note:
Reducing the search current can improve the flying restart performance (if the system moment of inertia is not very
high).
Description:
The value influences the rate at which the output frequency is changed during a flying restart . A higher value
results in a longer search time.
Notice:
For vector control, a value that is too low or too high can cause flying restart to become unstable.
p1200[0...n]
FlyRest oper mode / FlyRest oper mode
VECTOR
Can be changed:
U, T
Access level:
2
Data type:
Integer16
Data set:
DDS
Function diagram:
1690
P-Group:
Functions
Units group:
-
Unit selection:
-
Min Max
Factory
setting
0 6
0
p1202[0...n]
FlyRest srch curr / FlyRest srch curr
VECTOR
Can be changed:
U, T
Access level:
3
Data type:
Floating Point
Data set:
DDS
Function diagram:
-
P-Group:
Functions
Units group:
PERCENT
Unit selection:
-
Min Max
Factory
setting
10 [%]
400 [%]
100 [%]
p1203[0...n]
Flying restart search rate factor / FlyRst v_Srch Fact
VECTOR
Can be changed:
U, T
Access level:
3
Data type:
Floating Point
Data set:
DDS
Function diagram:
-
P-Group:
Functions
Units group:
PERCENT
Unit selection:
-
Min Max
Factory
setting
10 [%]
400 [%]
100 [%]