Siemens SINAMICS CU240S DP-F Operating Instructions Manual page 112

Commissioning
5.9 Parameters
Can be changed
"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 "Can be
changed". 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 5-17
State
C
U
T
Data types
The data type of a parameter defines the maximum possible value range. Five data types
are used for the inverter. 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 5-18
Data type
U16
U32
I16
I32
Float
Unit
The values of parameters support the following units:
Table 5-19
Unit
-
%
A
V
Ohm
us
ms
s
Hz
kHz
1/min
112
Parameter attributes - Can be changed
Description
Quick commissioning
Operation (Drive running)
Drive ready to run
Parameter attributes - Data types
Description
Unsigned, integer value with a size of 16 bits
Unsigned, integer value with a size of 32 bits
Signed integer 16-bit value
Signed integer 32-bit value
A simple precise floating point value according to the IEEE standard format
max. value range: -3.39e+38 –+3.39e+38
Parameter attributes - Unit
Description
No dimension
Percentage
Ampere
Volt
Ohm
Microseconds
Milliseconds
Seconds
Hertz
Kilohertz
Revolutions per minute [RPM]
Unit Description
m/s Meters per second
Nm Newton meter
W Watt
kW Kilowatt
Hp Horse power
kWh Kilowatt hours
°C Degrees Celsius
m Meter
kg Kilograms
° Degrees (angular degrees)
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
Control Units CU240S