Scaling; Tolerance Band And Hysteresis - BONFIGLIOLI ACTIVE Cube ACU 201-01 Operating Instructions Manual

15.1.1.2 Scaling

The analog input signal is mapped to the freely configurable characteristic. The max-
imum admissible setting range of the drive can be set via the frequency limits or
percentage limits according to the configuration selected. In the case of the parame-
terization of a bipolar characteristic, the set minimum and maximum limits for both
directions of rotation are effective. The percentage values of the characteristic points
are relative to the limits selected.
No.
418 Minimum Frequency
419 Maximum Frequency
The factory settings depend on the setup of parameter
1)
3.50 Hz in configurations 1xx, 4xx
2)
0.00 Hz in configurations 2xx, 5xx
The control system uses the maximum value of the output frequency, which is calcu-
lated from the
frequency limits define the speed range of the drive, and the percentage values sup-
plement the scaling of the analog input characteristic in accordance with the func-
tions configured.
No.
518 Minimum Reference Percentage
519 Maximum Reference Percentage

15.1.1.3 Tolerance Band and Hysteresis

The analog input characteristic with change of sign of the reference value can be
adapted by the parameter
tolerance band extends the zero passage of the speed relative to the analog control
signal. The parameter value (percent) is relative to the maximum current or voltage
signal.
No.
450 Tolerance band
pos. maximum value
0 V
(0 mA)
neg. maximum value
174
Parameter
Description
Maximum Frequency
Parameter
Description
Tolerance band
Parameter
Description
(X2/Y2)
(X1/Y1)
Without tolerance band
Operating Instructions ACU
Min.
0.00 Hz 999.99 Hz
0.00 Hz 999.99 Hz
Configuration
419 and the compensated slip of the drive. The
Settings
Min.
0.00 % 300.00 %
0.00 % 300.00 %
450 of the application. The adjustable
Settings
Min.
0.00 % 25.00 %
pos. maximum value
0 V
+10 V
(0 mA)
(+20 mA)
(X1/Y1)
neg. maximum value
With tolerance band
Settings
Max. Fact. sett.
1)
3.50 Hz
2)
0.00 Hz
50.00 Hz
30:
Max. Fact. sett.
0.00 %
100.00 %
Max. Fact. sett.
2.00 %
(X2/Y2)
+10 V
(+20 mA)
zero point
tolerance band
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