Changing Over Drive Data Sets (Several Motors Connected To A Frequency Inverter) - Siemens SINAMICS G120 Operating Instructions Manual
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Functions
5.10 Technological functions
5.10.6
Changing over drive data sets (several motors connected to a frequency inverter)
Switching motor control
In certain applications, the inverter parameters need to be switched.
Example: Operating different motors on one inverter
One inverter should operate one of two different motors. Depending on which motor is to run
at any given time, the motor data and the ramp-function generator times for the different
motors must be adjusted accordingly in the inverter.
Drive data sets (DDS)
The inverter provides the possibility of parameterizing the following functions in up to three
different ways:
● Setpoint sources
● Setpoint calculation
● Motor control
● Motor and inverter protection
● Technological functions
The associated parameters are indexed (index 0, 1 or 2). Control commands select one of
the three indices and therefore one of the three saved settings.
This means, that as described in the example above, you can switch over all of the settings
of the inverter matching the particular motor.
All of the switchable parameters of the five functions mentioned above with the same index
is known as a "command data set".
148
(exceptions: Analog inputs and fieldbus)
(Exception: Technology controller, brake control, automatic restart and unassigned
function blocks)
CU240S and CU240E Control Units, FW 3.2
Operating Instructions, 03/2009, A5E02440075B AA
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