Reference Values; Frequency Limits; Slip Frequency; Percentage Value Limits - BONFIGLIOLI ACTIVE CUBE 201 Operating Instructions Manual

15 Reference Values

The ACU series frequency inverters can be configured specific to the application and enable
customer-specific adaptation of the module hardware and software structure.
15.1

Frequency Limits

The output frequency of the frequency inverter and thus the speed setting range are defined by the
parameters
Minimum Frequency
use the two limit values for scaling and limiting the frequency.
Parameter
No. Description
418 Minimum frequency
419 Maximum frequency
The factory settings depend on the setup of parameter
1)
3.50 Hz in Configurations 1xx, 4xx; 6xx
2)
0.00 Hz in Configurations 2xx, 5xx
15.2

Slip Frequency

The torque-forming
3-phase machine depend on the required torque in the case of the field-oriented control methods.
The field-oriented control method also includes the parameter
torque in the calculation of the machine model. The rated slip calculated from the rated motor
parameters is limited in accordance with the
percentage.
Parameter
No. Description
719 Slip Frequency
15.3

Percentage Value Limits

The percentage adjusting range is defined by parameters
Maximum Reference Percentage
scaling and limiting of percentages.
Parameter
No. Description
518 Minimum Reference Percentage
519 Maximum Reference Percentage
15.4

Frequency reference channel

The different functions for the defining the reference frequency are connected via the frequency
reference value channel. The
the available reference value sources depending on the hardware installed.
Reference Frequency Source 475
1 - Abs. value analog value MFI1A
2 - Abs. Analog Input EM-S1INA
4 - Abs. Value MFI1A + EM-S1INA
152
418 and
Maximum Frequency
Min.
0.00 Hz
0.00 Hz
current component
Min.
0 %
519. The relevant control methods use the two limit values for
Min.
0.00 %
0.00 %
Reference Frequency Source
Multifunction input 1 in analog
the reference value source.
The analog input of the extension module is the
1)
reference value source.
1) Combination of operation modes 1 and 2.
Operating Instructions ACU
419. The relevant control methods
Setting
Max.
599.00 Hz
599.00 Hz
30
:
Configuration
and thus the
Slip Frequency
719 which is parameterized as a
Slip Frequency
Setting
Max.
10000 %
Minimum Reference Percentage
Setting
Max.
300.00 %
300.00 %
475 determines the additive assignment of
Function
Factory setting
1)
3.50 Hz
2)
0.00 Hz
50.00 Hz
slip frequency of
719 to limit the
Factory setting
330 %
518 and
Factory setting
0.00 %
100.00 %
452 is
Operation Mode
the
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