Specifications

Comfort Reference Value – 5th Generation of STÖBER Inverters STÖBER
ANTRIEBSTECHNIK
5. Combining the Reference Values
KSW-22
5.5 Switching the Main Reference Value
Information that you will find in
this section …
This section shows you how to switch the main reference value selected in D30 during
operation (e.g., from reference value external to motor potentiometer).
Switching the main
reference value
Use the uppermost arrow on the left side of Assistant page 4 to access the parameters
to set up the switchover. This arrow takes you to page 3.8 entitled "main reference value
selector" (see Figure 5-6).
Figure 5-6 Parameterization of the selectors for the selection of the main reference value
The signals main ref select 0 to 2 are used for the switchover. One of the selections from
D30 is selected by the binary coding of the signals. You set the sources of these signals
with selectors D118.0 to D118.2. The following table shows which signal states of the
sources selected in D118.x can be used to achieve the respective reference values.
Remember that the reference value 0 rpm is specified with selection 7.
In D118.2 selected
source
In D118.2 selected
source
In D118.2 selected
source
Ref. value in D30
0 0 0
0:RV external
0 0 1
1:Preset value
0 1 0
2:Correct ref1
0 1 1
3:Motorised pot
1 0 0
4:Correct ref2
1 0 1
5:PID
1 1 0
6:n-actual
1 1 1 –
The switchover must be confirmed by an enable signal to ensure that no undesired
states occur during the switchover. The enable signal can be edge or level-controlled.
Select a source in D119 for an edge-controlled signal. Set a source in D120 for a level-
controlled enable.