BONFIGLIOLI Agile Operating Instructions Manual page 232

Parameters
No. Description
767 Frequency Upper Limit
768 Frequency Lower Limit
Note: Positive values limit the speed in clockwise direction; negative values limit the speed in anti-
clockwise direction. In example, if both values are positive (> 0 Hz), anticlockwise movement is inhib-
ited.
WARNING
If the torque control is activated while the actual frequency lies outside the defined
range of
Frequency Upper Limit
when switching on a stopped machine or when the Flying start synchronizes), the al-
lowed frequency is driven to without ramps. The torque is only limited by the limitations
of the speed controller (current and torque). Therefore an unexpected dynamic behavior
can occur.
7.9.5.2.3 Limit Value Sources
769 Frequency upper limit source
770 Frequency lower limit source
The frequency can be limited by setting fixed values or linking an analog input.
The assignment is done for the torque controller via
Frequency Upper Limit source
Maximum Frequency
to 0 Hz and
Minimum Reference Percentage
Operation mode 769, 770
1 - Analog input MFI1A
2 - Analog input MFI2A
10 - Fixed limit
708 - RxPDO1 Long1
709 - RxPDO1 Long2
2501 - PLC Output Frequency 1
2502 - PLC Output Frequency 2
10001 ... 12502
7.9.5.2.4 Switching over between speed control and torque control
Via the signal assigned to parameter
control and torque control. See chapter 7.6.6.10 "n-/T-control changeover".
Agile
Operating Instructions
Min.
-999.99 Hz
-999.99 Hz
767 and
Frequency Upper Limit source
770. The frequency limits of the analog value relate
419. Setting a torque limit is done for
Maximum Reference Percentage
518 and
The source is the multifunctional input 1 in analog operation
mode (parameter
Operation Mode MFI1
fers to 100 % =
Maximum frequency
0 % = 0 Hz for the lower limit.
The source is the multifunctional input 2 in analog operation
mode (parameter
Operation Mode MFI2
fers to 100 % =
Maximum frequency
0 % = 0 Hz for the lower limit.
The selected parameter values are taken into account to limit the
speed controller. Factory setting.
Process data of system bus. Refer to instructions on system bus.
The value is processed as frequency.
Process data of system bus. Refer to instructions on system bus.
The value is processed as frequency.
Output value of a PLC function. Refer to application manual PLC.
Output value of a PLC function. Refer to application manual PLC.
Inverted values of signal sources 1 to 2502.
n-/T-Control Change-Over
232
06/2013
Parameter descriptions
Setting
Max. Fact. sett.
999.99 Hz 999.99 Hz
999.99 Hz -999.99 Hz
Frequency Lower Limit
519.
Function
452). The scaling re-
419 for the upper limit and
562). The scaling re-
419 for the upper limit and
164, you can switch between speed
768 (in example
769 and
Control functions