Commissioning (software)
5.2 Parameters
Control Units CU240S
5-6 Operating Instructions, 11/2006, A5E00766042B AA
Change state
"P" parameters can only be changed depending on the inverter state. The parameter value is
not accepted if the instantaneous state is not listed in the parameter attribute "Change state".
For instance, the quick commissioning parameter P0010 with the attribute "CT" can only be
changed in quick commissioning "C" or ready "T" but not in operation "U".
Table 5-3 Parameter attributes - Change state
State Description
C Quick commissioning
U Operation (Drive running)
T Drive ready to run
Data types
The data type of a parameter defines the maximum possible value range. Five data types
are used for SINAMICS G120. They either represent an unsigned integer value (U16, U32)
or a floating-point value (float). The value range is frequently restricted by a minimum and
maximum value (min, max) or using inverter/motor quantities.
Table 5-4 Parameter attributes - Data types
Data type Description
U16 Unsigned, integer value with a size of 16 bits
U32 Unsigned, integer value with a size of 32 bits
I16 Signed integer 16-bit value
I32 Signed integer 32-bit value
Float A simple precise floating point value according to the IEEE standard format
max. value range: -3.39e+38 –+3.39e+38
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