BONFIGLIOLI Agile Operating Instructions Manual page 130

Operation Mode Fly-
645
ing Start
0 - Off
1 - On
On, according to
2 -
reference
On, clockwise
3 -
only
On, anticlockwise
4 -
only
Determine flux
20 -
direction only
Operation above
30 -
frequency limit
Operation modes 2, 3 and 4 define a direction of rotation for the Flying Start and avoid a deviating
direction. The Flying Start can accelerate drives by checking the rotary frequency if the drives have a
low moment of inertia and/or a small load moment.
In operation modes 1 to 4, it cannot be ruled out that a wrong direction of rotation is determined. 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 2, 3 and 4.
NOTE
The Flying Start function is designed for the operation of motors without brake. Brake
motors may not be operated optimum in individual cases (depending of parameteriza-
tion and brake control) with the Flying start function.
Agile
Operating Instructions
The synchronization to a rotating drive is de-activated. Factory setting.
An attempt is made to synchronize to the drive in positive direction (clock-
wise field of rotation) and in negative direction (anticlockwise field of rota-
tion).
During operation of a synchronous motor (
flux direction is determined additionally when the drive is at a standstill.
The search direction is defined by the sign of the reference value. If a posi-
tive reference value (clockwise field of rotation) is entered, the search is in
a positive direction (clockwise field of rotation), with a negative reference
value, the search is in a negative direction (anti-clockwise field of rotation).
During operation of a synchronous motor (
flux direction is determined additionally when the drive is at a standstill.
Synchronization to the drive is only done in positive direction (clockwise
field of rotation).
During operation of a synchronous motor (
flux direction is determined additionally when the drive is at a standstill.
Synchronization to the drive is only done in negative direction (anticlock-
wise field of rotation).
During operation of a synchronous motor (
flux direction is determined additionally when the drive is at a standstill.
For a synchronous motor (
is determined. The drive must be at a standstill. Synchronization to a turn-
ing drive is not possible. This method is faster than operation modes 1 ... 4.
For a synchronous motor (
performed. The search is continued until a rotary frequency is detected
which is greater than the
drops below the frequency limit, the search run is continued. This operation
mode can be used for synchronous motors in torque-controlled drives. An
example application is the operation in wind energy converters.
For an asynchronous motor (
Applicable for torque-controlled drives which have to supply only reaction
torque without active acceleration. If the drive is externally accelerated to
the speed which is sufficient for sensor-less field-orientated control, switch-
over to torque control is carried out.
130
06/2013
Function
Configuration
Configuration
Configuration
Configuration
30 = 610), only the flux direction
Configuration
30 = 610), only the Flying Start is
Configuration
624. If the stator frequency
Frequency limit
30 = 410): Wait for speed.
Configuration
Parameter descriptions
30 = 610), the
30 = 610), the
30 = 610), the
30 = 610), the
Operational Behavior