Functions
5.10 Technological functions
Frequency inverter
Operating Instructions, 08.10. 2008, t.b.d.
139
Table 5- 41 Overview: the "flying restart" function
P1200 Flying restart active Search direction
0 Flying restart inactive (factory setting) -
1 Flying restart always active Search performed in both directions, startup in
direction of setpoint
2 Flying restart active after:
• Power ON
• Faults
• OFF2
Search performed in both directions, startup in
direction of setpoint
3 Flying restart active after:
• Faults
• OFF2
Search performed in both directions, startup in
direction of setpoint
4 Flying restart always active Search performed in direction of setpoint only
5 Flying restart active after
• Power ON
• Faults
• OFF2
Search performed in direction of setpoint only
6 Flying restart active after
• Faults
• OFF2
Search performed in direction of setpoint only
Table 5- 42 Additional commissioning parameters
Parameter Description
P1202 =
…
Motor current: flying restart
(entered in %): 10 % ... 200 %, factory setting 100 %
Defines the search current with respect to the rated motor current (P0305) that is
present when the "flying restart" function is used.
P1203 =
…
Search rate/speed: Flying restart
(entered in %): 10 % ... 200 %, factory setting 100 %
Sets the factor by which the output frequency changes during the flying restart to
synchronize itself with the running motor.
Note
The higher the search rate (P1203), the longer the search time. The lower the search rate,
the shorter the search time.
The "flying restart" function decelerates the motor slightly. The smaller the drive torque, the
more the drive is decelerated.
The "flying restart" function should not be activated for motors in group drives due to the
different coasting characteristics of the individual motors.
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