SINAMICS G120 Control Units CU240B-2/CU240E-2
List Manual (LH11), 01/2016, A5E33839529
179
2 Parameters
2.2 List of parameters
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 %).
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 %).
Description: Displays the status for checking and monitoring flying restart states in the U/f control mode.
p1203[0...n] Flying restart search rate factor / FlyRst v_Srch Fact
PM230
PM230_STO
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
10 [%] 4000 [%] 150 [%]
p1203[0...n] Flying restart search rate factor / FlyRst v_Srch Fact
PM240
PM250, PM260
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
10 [%] 4000 [%] 100 [%]
r1204.0...13 CO/BO: Flying restart U/f control status / FlyRest Uf st
Access level: 4 Calculated: - Data type: Unsigned16
Can be changed: - Scaling: - Dyn. index: -
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
- - -
Bit field: Bit Signal name 1 signal 0 signal FP
00 Current impressed Yes No -
01 No current flow Yes No -
02 Voltage input Yes No -
03 Voltage reduced Yes No -
04 Start ramp-function generator Yes No -
05 Wait for execution Yes No -
06 Slope filter act Yes No -
07 Positive gradient Yes No -
08 Current < thresh Yes No -
09 Current minimum Yes No -
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