Operating Instructions ACU
9 Commissioning of frequency inverter
If filters (e.g. dU/dt filters or sine filters) are used between the frequency inverter and
machine, the following must be noted.
For configurations with sensor feedback (2xx, 5xx):
ï‚· Carry out the installation with the filter connected. Note the filter manufacturer's
specifications concerning permissible switching frequencies. During setup note that
the filter may be overloaded thermally.
For configurations without sensor feedback (1xx, 4xx, 6xx):
ï‚· Carry out the installation without connected filters. After setup, connect the filters
between the frequency inverter and the motor.
In liquid-cooled devices:
ï‚· Vent the cooling circquit.
ï‚· Initiate the cooling circuit.
See instructions in the "Operating Instructions Liquid Cooling Supplemental" document.
9.1 Turn mains voltage on
After completion of the installation work, make sure to check all control and power connections
again before switching on the mains voltage. When all electrical connections are correct, make sure
that the frequency inverter is not enabled (control inputs S1IND/STOA and S7IND/STOB open). After
power-up, the frequency inverter carries out a self-test and the relay output (X10) reports "Fault".
After a few seconds, the frequency inverter self-test is complete, the relay (X10) picks up and
signals "no fault ".
If the unit is in "as-delivered" condition or after resetting the unit to the factory settings, the guided
commissioning procedure is started automatically. On the control unit, the “SetUP“ menu from the
menu branch CTRL is displayed.
9.2 Setup Using the Control Unit
The guided commissioning of the frequency inverter determines all parameter settings relevant to
the required application. The available parameters were selected based on known standard drive
applications. This facilitates the selection of the important parameters. After successful completion of
the SETUP routine, the actual value Actual Frequency 241 from the VAL menu branch is displayed
on the control unit. Now, the user should check whether further parameters are relevant for the
application.
The guided commissioning contains the function for parameter identification. The
parameters are determined by way of measurement and set accordingly. Guided
commissioning must be carried out when the machine is cold, since a part of the
machine data depends on the operating temperature.
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