BONFIGLIOLI ACTIVE Cube ACU 201-01, Руководство по эксплуатации

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ment.
In operation modes 10 to 15, it cannot be ruled out that a wrong direction of rotation
is determined in quick synchronization. For example, a frequency not equal to zero
may be determined although the drive is at a standstill. If there is no overcurrent, the
drive is accelerated accordingly. The direction of rotation is defined in operation
modes 11, 14 and 15.
The synchronization changes the parameterized starting behavior of the selected
configuration. First, the start command activates the search run in order to determine
the rotary frequency of the drive. In operation modes 1 to 5, the
Current / Rated
motor current
647 is used for synchronization as a percentage of the
Rated cur-
rent
371.
Parameter Settings
No. Description Min. Max. Fact. sett.
647 Current / Rated Motor Current 1.00 % 100.00 % 70.00 %
The sensor-less control is extended for the search run by a PI-Controller, which regu-
lates the parameterized
Current / Rated Motor Current
647. The proportional and
integrating part of the current controller can be set via the parameters
Amplifica-
tion
648 and
Integral Time
649. The control functions can be deactivated by setting
the parameters to 0.
Parameter Settings
No. Description Min. Max. Fact. sett.
648 Amplification 0.00 10.00 1.00
649 Integral time 0 ms 1000 ms 20 ms
If the
Operation mode Synchronization
645 parameter was set to operation mode 1
to 5 (search run), the search run is not started before the
Demagnetization time
633
has elapsed.
If synchronization to the drive mechanism is not possible, the
Braking current
631 is
impressed into the motor in operation modes 1 to 5 for the duration of the
Braking
time after search run
646. The impress of the direct current set in the parameters of
the direct current brake (DCB) leads to a heating of the motor and should only be
done for a short period in internally ventilated motors.
Parameter Settings
No. Description Min. Max. Fact. sett.
646 Brak. time after search run 0.0 s 200.0 s 10.0 s
NOTE
The Flying Start (or Search) function is designed for the operation of motors without
brake. Brake motors may not be operated optimum in individual cases (depending of
parameterization and brake control) with the Flying start function.
06/13 Operating Instructions ACU 143