Table 3-1 Parameter Attributes - Siemens MICROMASTER 420 Operating Instructions Manual

3 Functions
Table 3-1 Parameter attributes
Attribute Attribute
group
Data types
U16
U32
Float
Value range
-
Min
Def
Max
Unit
-
%
A
V
Ohm
us
ms
s
Hz
kHz
1/min
m/s
Nm
W
kW
Hp
kWh
°C
m
kg
°
40
The data type of a parameter defines the maximum possible value range. 3 data
types are used for MICROMASTER. They either represent an unsigned integer value
(U16, U32) or a floating-point value (float). The value range is frequently restricted by
a minimum, maximum value (min, max) or using drive inverter/motor quantities.
Unsigned, integer value with a size of 16 bits,
max. value range: 0 .... 65535
Unsigned, integer value with a size of 32 bits
max. value range: 0 .... 4294967295
A simple precise floating point value according to the IEEE standard format
+38
max. value range: -3.39e
The value range, which is specified as a result of the data type, is restricted/limited by
the minimum, maximum value (min, max) and using drive inverter/motor quantities.
Straightforward commissioning (start-up) is guaranteed in so much that the
parameters have a default value. These values (min, def, max) are permanently
saved in the drive inverter and cannot be changed by the user.
No value entered (e.g.: "r parameter")
Minimum value
Default value
Maximum value
For MICROMASTER, the units of a particular parameter involve the physical quantity
(e.g. m, s, A). Quantities are measurable properties/characteristics of physical
objects, operations, states and are represented using characters of a formula (e.g. V
= 9 V).
No dimension
Percentage
Ampere
Volt
Ohm
Microseconds
Milliseconds
Seconds
Hertz
Kilohertz
Revolutions per minute [RPM]
Meters per second
Newton meter
Watt
Kilowatt
Horse power
Kilowatt hours
Degrees Celsius
Meter
Kilograms
Degrees (angular degrees)
Description
+38
– +3.39e
MICROMASTER 420
Issue 07/04
Operating Instructions
6SE6400-5AA00-0BP0