Operating Instructions ACU
8.6.3 Resetting to Normal Operation
A control unit KP°500 activated for parameter transmission can be reset to full functionality
(standard operation) via a specific key code on the control unit or via each available communication
module CM.
Resetting on control unit
Press RUN and STOP keys on control unit simultaneously for approx. 1 second.
When the process is complete, – – – – – is displayed briefly. Then the top menu level of the
control unit is available.
In the parameter menu PARA, use the arrow keys to select parameter Program 34, and confirm
your selection by pressing the ENT key.
Use the arrow keys to set value 110 – Normal operation and confirm your selection by pressing
the ENT key.
The control unit is set to normal operation.
Resetting via communication module CM and/or using control software VPlus
Resetting of the control unit through a communication connection is possible only if the
frequency inverter is fitted with an optional communication module CM, and
communication takes place via this module.
Establish connection to frequency inverter.
Start communication and select parameter Program 34 via the communication connection.
Via the communication connection, enter value 110 in parameter Program 34 and confirm this
value.
Via the communication connection enter value 123 in parameter Program 34 and confirm this
value by pressing Enter.
The frequency inverter is reset. The display of the control unit reads rESEt.
After resetting, the control unit is available again with full functionality.
8.7 Control Menu (CTRL)
In order to be able to control the drive via the control unit, the digital inputs
S1IND/STOA and S7IND/STOB must be connected for enabling the output.
The unit may only be connected with the power supply switched off.
Verify safe isolation from power supply.
Switch off power supply before connecting or disconnecting the control inputs and
outputs. Otherwise, components may be damaged.
In the CTRL menu branch, various functions are available which make commissioning 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 communication
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. Depending on the operation mode selected, only
some of the control menu functions are available. Refer to chapter 19.3 "Bus controller" for a
detailed description of parameter Local/Remote 412.
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