Operating instructions

Functions
5.1 Overview of inverter functions
CU240S and CU240E Control Units, FW 3.2
Operating Instructions, 03/2009, A5E02440075B AA
83
Functions required in special applications only
The functions, whose parameters you only have to adapt when actually required, are located
at the outer edge of the function overview above.
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The production functions avoid overloads and operating states that could
cause damage to the motor, inverter and driven load. The motor temperature
monitoring is, e.g. set here.
The status messages provide digital and analog signals at the digital outputs
or via the fieldbus. Examples include the actual speed of the motor or fault
message output by the inverter.
The technological functions allow you to activate a motor holding brake or
implement a higher-level pressure or temperature control using the
technology controller, for example.
The safety functions are used for applications that must fulfill special
requirements placed on the functional safety. These are only available for
fail-safe inverters.
Connection to a fieldbus
If you wish to operate the inverter on a fieldbus, then you must connect the following inverter
functions with the fieldbus:
● Command sources
● Setpoint sources
● Status messages
A connection with a fieldbus can be established via software tools in the control systems.
This manual includes descriptions of how you proceed for PROFIBUS and PROFINET with a
SIMATIC control.
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