BONFIGLIOLI active cube 201, Operating Instructions Manual

Page: 135 / 285

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