Table of Contents
Advertisement
Special features
The values for p0505 = 2 and for p0505 = 4 - represented in the converter - are identical.
However, the reference to SI or US units is required for internal calculations and to output
physical variables.
For variables, which cannot be represented as [%], then the following applies:
● p0505 = 1 corresponds to setting p0505 = 2
● p0505 = 3 corresponds to setting p0505 = 4
In the case of variables whose units are identical in the SI system and US system, and which
can be displayed as a percentage, the following applies:
● p0505 = 1 corresponds to setting p0505 = 3
● p0505 = 2 corresponds to setting p0505 = 4
Reference variables
There is a reference variable in the converter for most parameters with physical units. When the
referred representation [%] is set, then the converter scales the physical variables based on the
particular reference variable.
When the reference variable changes, then the significance of the scaled value also changes.
Example:
● Reference speed = 1500 rpm → fixed speed = 80 % corresponds to the speed = 1200 rpm
● Reference speed = 3000 rpm → fixed speed = 80 % corresponds to the speed = 2400 rpm
For each parameter you can find the associated reference variable for scaling in the parameter
list. Example: r0065 is scaled with reference variable p2000.
If scaling is not specified in the parameter list, then the converter always shows/displays the
parameter unscaled.
Groups of units
The parameters associated with the selection of a physical unit, belong to different groups of
units.
For each parameter you can find the associated unit group for scaling in the parameter list.
Example: r0333 belongs to unit group 7_4.
An overview of the unit groups and the possible physical units can also be found in the
parameter list.
6.3.10.3
Technological unit of the technology controller
Options when selecting the technological unit
p0595 defines in which technological unit the input and output variables of the technology
controller are calculated, e.g. [bar], [m³/min] or [kg/h].
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
Advanced commissioning
6.3 Drive control
295
Advertisement
Table of Contents
