NFO
Drives
AB
2021
201013
‐
2
Operating
and
Installation
Manual
15
5
Parameter settings and operation
5.1 General
notes
The inverter can be used in the following modes of control:
Frequency regulation of an induction motor (motor speed is not compensated for load variations) with a fixed
digital or analogue setpoint. The motor's electrical frequency is shown on the display. This is the factory default
mode.
Speed regulation for an induction motor with speed calculation (motor speed compensated for load variations)
with a fixed digital or analogue setpoint.
The motor's estimated speed is shown in the display.
In the above modes, the setpoint can also be the output from the internal PI-regulator with feedback from a process
controlled by an induction motor.
Setup of motor parameters and motor tuning must always be performed before first motor start.
5.2 Keyboard
and
display
The figure and table below shows the keyboard and general key functions.
Button
Function
Enter into parameter or parameter-group.
Save parameter.
Enter/toggle between normal screen and setup
menu tree.
Leave parameter, parameter-group or leave
parameter unsaved.
Toggle Operating mode between
Manual
and
Auto
.
Starts motor in
Auto
mode if Run signal active.
Starts motor in
Manual
mode.
Stops motor in all modes.
NOTE: A bus master may start motor at any time
Increase parameter when changing values.
Moves between parameter-groups or parameters.
Decrease parameter when changing values.
Moves between parameter-groups or parameters.
Fig. 8. Keyboard
Table 6. Button functions
After power up, the inverter enters the RUN screen. This screen shows the status of the inverter. Setup is reached
by pressing
(Esc). From the Setup Screen, the RUN screen is entered again by pressing
(Esc).
When a parameter or a parameter-group is selected, its text is inverted. By pressing
(Enter) the parameter or
parameter-group is entered.
The value of a given parameter can be increased or decreased by pressing
(Up) or
(Down). When
adjusting parameters, the increment increases successively. When any parameter is changed but not yet saved, its
value is highlighted. To save the value, press
(Enter).
3006469-2022-04
