Fixed Percentages; Frequency Ramps - BONFIGLIOLI ACTIVE CUBE 201 Operating Instructions Manual

15.6.3

Fixed percentages

The four fixed percentages define reference values which are selected via
75 and
Change-Over 1
defines the addition of the various sources in the reference frequency channel.
Parameter
No. Description
520 Fixed Percentage 1
521 Fixed Percentage 2
522 Fixed Percentage 3
523 Fixed Percentage 4
By combining the logic states of the fixed percentage change-over modes 1 and 2, fixed percentages
1 through 4 can be selected:
Fixed Percent Fixed
75
Change-Over 1 Change-Over 2
0
1
1
0
0 = Contact open
15.7

Frequency ramps

The ramps determine how quickly the frequency value is changed if the reference value changes or
after a start, stop or brake command. The maximum admissible ramp gradient can be selected
according to the application and the current consumption of the motor.
If the settings of the frequency ramps are identical for both directions of rotation, the
parameterization via the parameters
421 is sufficient. The values of the frequency ramps are applied to
and
Deceleration Anticlockwise
0.01 Hz/s.
The parameter value of 0.00 Hz/s for the acceleration blocks the corresponding direction of rotation.
Parameter
No. Description
420 Acceleration (Clockwise)
421 Deceleration (Clockwise)
422 Acceleration Anticlockwise
423 Deceleration Anticlockwise
1)
Value -0.01 Hz/s means that the value of
2)
Value -0.01 Hz/s means that the value of
Setting 0.00 Hz/s will not accelerate nor decelerate the drive due to the limitation of
the ramp.
The ramps for
Emergency Stop Clockwise
to be activated via
Operation Mode
application. The non-linear (S-shaped) course of the ramps is not active in the case of an emergency
stop of the drive.
160
Fixed Percent Change-Over 2
-300.00 %
-300.00 %
-300.00 %
-300.00 %
Fixed percentage control
Percent
Function / active fixed value
76
0
Fixed Percentage 1
0
Fixed Percentage 2
1
Fixed Percentage 3
1
Fixed Percentage 4
1 = Contact closed
Acceleration (Clockwise)
423 if these have been parameterized to the factory setting of -
Min.
0.00 Hz/s
0.01 Hz/s
- 0.01 Hz/s
- 0.01 Hz/s
Acceleration (Clockwise)
Deceleration (Clockwise)
424 and
630 for the stopping behavior must be selected according to the
Operating Instructions ACU
76. The
Reference Percentage Source
Setting
Min. Max.
300.00 %
300.00 %
300.00 %
300.00 %
520
521
522
523
420 and
Acceleration Anticlockwise
Setting
Max.
9999.99 Hz/s
9999.99 Hz/s
1)
9999.99 Hz/s
2)
9999.99 Hz/s
420 is used.
421 is used.
Emergency Stop Anticlockwise
the Fixed Percent
476
Factory setting
0.00 %
20.00 %
50.00 %
100.00 %
Deceleration (Clockwise)
422
Factory setting
5.00 Hz/s
5.00 Hz/s
- 0.01 Hz/s
- 0.01 Hz/s
425 of the drive
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