KFU 2-/4-
77
In the CTRL menu branch, various functions are available which make commission-
ing easier and enable the control of the inverter via the control unit.
The frequency inverters can be controlled by means of the control unit and/or a com-
munication module.
If you want to control the frequency inverter via an optional communication module,
the necessary adjustments can be made via parameter
Local/Remote
412
. Via this
parameter, you can specify which functions will be available to the controller. De-
pending on the operation mode selected, only some of the control menu functions are
available. Refer to cheaper „Special functions, bus controller“ for a detailed descrip-
tion of parameter
Local/Remote
412
.
6.8
Controlling the Motor via the Control Unit
The control unit enables controlling the connected motor in accordance with the se-
lected operation mode of parameter
Local/Remote
412
.
Note:
In order to be able to control the drive via the control unit, the digital
inputs S1IND/STOA (terminal X210A.3) and S7IND/STOB (terminal
X210B.2) must be connected for enabling the output. These are the
inputs for the shutdown paths of the safety function STO – „Safe Torque
Off“.
Warning!
Switch off power supply before connecting or disconnecting the
control inputs.
The unit may only be connected with the power supply switched off.
Make sure that the frequency inverter is discharged.
When the frequency inverter is disconnected from power supply,
the mains, DC-link voltage and motor terminals may still be live for
some time. Wait for some minutes until the DC link capacitors have
discharged before starting to work at the unit.
:
When the RUN key was pressed, the drive was in operation already.
