Siemens SINAMICS G120 Manual page 157

p1203[0...n] Flying restart search rate factor / FlyRst v_Srch Fact
PM240 Access level: 3
PM250, PM260
Can be changed: U, T
Units group: -
Min
10 [%]
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.
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).
r1204.0...13 CO/BO: Flying restart, U/f control status / FlyRest Uf st
Access level: 4
Can be changed: -
Units group: -
Min
-
Description: Displays the status for checking and monitoring flying restart states in the U/f control mode.
Bit field: Bit Signal name
00 Current impressed
01 No current flow
02 Voltage input
03 Voltage reduced
04 Start ramp-function generator
05 Wait for execution
06 Slope filter act
07 Positive gradient
08 Current < thresh
09 Current minimum
10 Search in the positive direction
11 Stop after positive direction
12 Stop after negative direction
13 No result
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
Calculated: -
Scaling: -
Unit selection: -
Max
4000 [%]
Calculated: -
Scaling: -
Unit selection: -
Max
-
1 signal
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Parameters
List of Parameters
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
100 [%]
Data type: Unsigned16
Data set: -
Factory setting
-
0 signal
No
No
No
No
No
No
No
No
No
No
No
No
No
No
FP
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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