BONFIGLIOLI Act 201 Operating Instructions Manual page 123

The ramps for
425 of the drive to be activated via the parameter for stopping behavior
Mode
course of the ramps is not active in the case of an emergency stop of the drive.
No.
424 Emergency Stop Clockwise
425 Emergency Stop Anticlockwise
Rotary field
clockwise
The parameter
ramp and the current actual value of the drive. The set maximum deviation is a dead
time for the control system which should be kept as low as possible.
In case the drive is loaded heavily and high acceleration and deceleration values are
selected it is possible, that a set controller limit is reached while the drive is acceler-
ated or decelerated. In this case, the drive cannot follow the defined acceleration or
deceleration ramps. With
the ramp.
No.
426 Maximum Leading
Example: Fixed value at ramp output = 20 Hz, current actual value of drive = 15 Hz,
selected
The frequency at the ramp output is increased to 15 Hz only and it is not increased
further. The difference (leading) between the frequency value at the ramp output and
the current actual frequency of the drive is limited to 5 Hz in this way.
The load occurring in a linear acceleration of the drive is reduced by the adjustable
modification speeds (S curve). The non-linear course of the frequency is defined as a
ramp and states the time range in which the frequency is to be guided to the set ramp.
The values set with parameters 420 to 423 are maintained regardless of the selected
ramp times.
06/07
06/07
Emergency Stop Clockwise
630 must be selected according to the application. The non-linear (S-shaped)
Parameter
Description
+f
m ax
Acceleration
(Clockwise) 420
Acceleration
( anticlockwise
Rotary field
anticlockwise
-f
ma x
Maximum Leading
Parameter
Description
Maximum Leading
Operating Instructions ACTIVE
Operating Instructions ACTIVE
424 and
Min.
0.01 Hz/s 9999.99 Hz/s
0.01 Hz/s 9999.99 Hz/s
Deceleration (Clockwise)
or
Emergency Stop C lockwise
) 422
426 limits the difference between the output of the
Maximum Leading
426, you can limit the max. leading of
Min.
0.01 Hz
426 = 5 Hz
Emergency Stop Anticlockwise
Settings
Max. Fact. sett.
5.00 Hz/s
421
424
t
Deceleration anticlockwise 423
or
Emergency Stop anticlockwise
425
Settings
Max. Fact. sett.
999.99 Hz
Operation
5.00 Hz/s
5.00 Hz
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