BONFIGLIOLI ACTIVE CUBE 201 Operating Instructions Manual page 135

The Current during Flux-Formation changes depending on the rotor time constant of the motor. The
settings of parameters
contribute to obtaining a constant flux formation time. With parameter
779, you can set the minimum current impression time. In this way, the time between a start signal
and the start of the drive can be defined. For proper setting of the parameters, you will have to
consider the rotor time constant, the starting torque required and parameter
781.
Formation
Parameter
No. Description
779 Minimum flux formation time
The factory setting of parameter
30:
Configuration
1)
Configurations 2xx/4xx
2)
Configurations 6xx
Min. Flux-Formation Time
Min. Flux-Formation Time
Min. Flux-Formation Time
Max. Flux-Formation Time
Min. Flux-Formation Time
Max. Flux-Formation Time
12/16
Max. Flux-Formation Time
Min. Flux-Formation Time
779 = 0 Flux formation is stopped as soon


779 > 0 Current is impressed for flux formation at least for this time
even if the reference flux value was reached.
779 = Flux formation is stopped after the set flux formation time,
regardless of whether the reference flux value was reached
780
or not.
779 > Flux formation is stopped after the maximum flux formation
time.
780
Operating Instructions ACU
780 and
Min. Flux-Formation Time
Setting
Min. Max.
1 ms 10000 ms
779 depends on parameter
as the reference flux value or the
maximum flux formation time were reached
779 can
Min. Flux-Formation Time
Current during Flux-
Factory setting
1)
10 ms
2)
50 ms
135