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Functions, monitoring, and protective functions
9.3 Drive functions
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
323
9.3.5.2
Flying restart with encoder
Description
The flying restart function behaves differently with V/f control and vector control:
●
V/f characteristic (p1300 < 20):
Flying restart without encoder (see "Flying restart without encoder")
●
Vector control with encoder:
Since the speed is known from the start, the motor can be magnetized immediately at the
appropriate frequency. The duration of magnetization is specified in p0346. Once the
excitation build-up time has elapsed, the ramp-function generator is set to the actual
speed value and the motor ramped up to the current setpoint speed.
WARNING
When the flying restart (p1200) function is active, the drive may still be accelerated by
the detection current despite the fact that it is at standstill and the setpoint is 0.
For this reason, entering the area around the drive when it is in this condition can cause
death, serious injury, or considerable material damage.
9.3.5.3
Parameters
•
p1200
Flying restart operating mode
•
0: Flying restart inactive
•
1: Flying restart is always active (start in the setpoint direction).
•
2: Flying restart is active after: power-on, fault, OFF2 (start in the setpoint
direction).
•
3: Flying restart is active after: fault, OFF2. (start in the setpoint
direction).
•
4: Flying restart is always active (start only in the setpoint direction).
•
5: Flying restart is active after: power-on, fault, OFF2 (start only in the
setpoint direction).
•
6: Flying restart is active after: fault, OFF2 (start only in the setpoint
direction).
•
p1202
Flying restart search current
•
p1203
Flying restart search rate factor
•
r1204
Flying restart, V/f control status
•
r1205
Flying restart, vector control status