Siemens SINAMICS G120 List Manual page 179

p1203[0...n] Flying restart search rate factor / FlyRst v_Srch Fact
PM230 Access level: 3
PM230_STO
Can be changed: U, T
Unit group: -
Min
10 [%]
Description: Sets the factor for the search speed for flying restart.
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.
Recommendation: For encoderless vector control and motor cables longer than 200 m, set the factor p1203 >= 300 %.
Caution: An unfavorable parameter value can result in the motor behaving in an uncontrollable fashion.
For vector control, a value that is too low or too high can cause flying restart to become unstable.
Note: The parameter factory setting is selected so that standard induction motors that are rotating can be found and
restarted as quickly as possible (fast flying restart).
With this pre-setting, if the motor is not found (e.g. for motors that are accelerated as a result of active loads or with
U/f control and low speeds), we recommend that the search rate is reduced (by increasing p1203).
For the flying restart of a reluctance motor, the minimum search velocity is limited (p1203 >= 50 %).
p1203[0...n] Flying restart search rate factor / FlyRst v_Srch Fact
PM240 Access level: 3
PM250, PM260
Can be changed: U, T
Unit group: -
Min
10 [%]
Description: Sets the factor for the search speed for flying restart.
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.
Recommendation: For encoderless vector control and motor cables longer than 200 m, set the factor p1203 >= 300 %.
Caution: An unfavorable parameter value can result in the motor behaving in an uncontrollable fashion.
For vector control, a value that is too low or too high can cause flying restart to become unstable.
Note: The parameter factory setting is selected so that standard induction motors that are rotating can be found and
restarted as quickly as possible (fast flying restart).
With this pre-setting, if the motor is not found (e.g. for motors that are accelerated as a result of active loads or with
U/f control and low speeds), we recommend that the search rate is reduced (by increasing p1203).
For the flying restart of a reluctance motor, the minimum search velocity is limited (p1203 >= 50 %).
r1204.0...13 CO/BO: Flying restart U/f control status / FlyRest Uf st
Access level: 4
Can be changed: -
Unit group: -
Min
-
Description: Displays the status for checking and monitoring flying restart states in the U/f control mode.
Bit field: Bit
00
01
02
03
04
05
06
07
08
09
SINAMICS G120 Control Units CU240B-2/CU240E-2
List Manual (LH11), 01/2016, A5E33839529
Signal name
Current impressed
No current flow
Voltage input
Voltage reduced
Start ramp-function generator
Wait for execution
Slope filter act
Positive gradient
Current < thresh
Current minimum
Calculated: -
Scaling: -
Unit selection: -
Max
4000 [%]
Calculated: -
Scaling: -
Unit selection: -
Max
4000 [%]
Calculated: -
Scaling: -
Unit selection: -
Max
-
1 signal
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
2 Parameters
2.2 List of parameters
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
150 [%]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
100 [%]
Data type: Unsigned16
Dyn. index: -
Func. diagram: -
Factory setting
-
0 signal
No
No
No
No
No
No
No
No
No
No
FP
-
-
-
-
-
-
-
-
-
-
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