Siemens CU230P-2 HVAC Parameter Manual page 151

p1203[0...n] Flying restart search rate factor / FlyRst v_Srch Fact
PM240 Access level: 3
PM250, PM260
Can be changed: U, T
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 presetting, if the motor is not found (e.g. for motors that are accelerated as a result of active loads) we rec-
ommend that the search rate is reduced (by increasing p1203).
r1204.0...13 CO/BO: Flying restart, V/f control status / FlyRest Vf st
Access level: 4
Unit: -
Description: Displays the status for checking and monitoring flying restart states in the V/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 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Calculated: -
Scaling: -
Max
4000 [%]
Calculated: -
Scaling: -
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: -
0 signal
No
No
No
No
No
No
No
No
No
No
No
No
No
No
FP
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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