Percentage Value Ramps; Block Frequencies - BONFIGLIOLI Act 201 Operating Instructions Manual

13.8
The percentage value ramps scale the change of the reference value (in percent) for
the corresponding input function. The acceleration and deceleration of the drive are
parameterized via the frequency ramps.
The behavior
the time response of the drive system into account. If the parameter is set to 0 %/s,
this function is deactivated and a direct reference value modification for the following
function is obtained.
The default value depends on the parameter
No.
477 Gradient Percentage Ramp
13.9
In certain applications, it is necessary to fade out reference frequencies. In this way,
resonance points of the system as stationary operating points are avoided. The pa-
rameters
parameter
A block frequency is active if the parameter values of the block frequency and the
frequency hysteresis are not equal to 0.00 Hz.
The area faded out as a stationary working point by the hysteresis is passed through
as quickly as possible according to the selected ramp for V. If the output frequency is
limited as a result of the selected control parameter settings, e.g. if the current limit is
reached, the hysteresis is passed through with a delay. The behavior of the reference
value can be determined from its direction of movement according to the following
diagram.
No.
447 1st Blocking Frequency
448 2nd Blocking Frequency
449 Frequency Hysteresis
reference value output
06/07
06/07

Percentage Value Ramps

Gradient Percentage Ramp
Parameter
Description

Block Frequencies

1st Blocking Frequency
Frequency Hysteresis
Parameter
Description
Operating Instructions ACTIVE
Operating Instructions ACTIVE
477 corresponds to a function which takes
Configuration
Min.
0 %/s
2nd Blocking Frequency
447 and
449 define two resonance points.
Min.
0.00 Hz
0.00 Hz
0.00 Hz
hysteresis hysteresis
f
block
f -hysteresis f +hysteresis
block block
30.
Settings
Max. Fact. sett.
60.000 %/s x %/s
448 with the
Settings
Max. Fact. sett.
999.99 Hz 0.00 Hz
999.99 Hz 0.00 Hz
100.00 Hz 0.00 Hz
internal
reference value
123
123