Specifications

Comfort Reference Value – 5th Generation of STÖBER Inverters STÖBER
ANTRIEBSTECHNIK
5. Combining the Reference Values
KSW-19
5.1 Unchanged Main Reference Value
Information that you will find in
this section …
This section shows you how to parameterize a main reference value which cannot be
influenced by addition of or multiplication by any other reference value.
Unchanged main reference value
Proceed as shown below to parameterize an unchanged main reference value:
• Select a reference value source in D30 (e.g., D30=3:Motorpot).
• Set D31 and D33 to "0:inactive."
The selected main reference value is transmitted unchanged with this parameterization.
Display parameters D381 and D382 indicate the same value.
Figure 5-2 Unchanged main reference value
5.2 Main Reference Value + Absolute Reference Value
Information that you will find in
this section …
This section shows you how to parameterize a reference value which consists additively
of two components.
Main reference value + absolute
reference value
Proceed as shown below to parameterize an absolute addition of two reference values
(see Figure 5-3):
• Select the desired reference value sources in D30 and D31 (e.g., D30=0:reference
value external and D31=2:preset value).
• Parameterize the value 0: absolute in D32 so that absolute addition will be performed.
• Set D33=0:inactive.
With this parameterization, the reference values set in D30 and D31 are added. D381
shows the value of the main reference value and D382 shows the result of the addition.
Example:
The reference value set in D30 supplies the value 500 Rpm and the value selected in
D31 supplies 250 Rpm. The total result is: 500 Rpm + 250 Rpm = 750 Rpm. 500 Rpm is
indicated in D381 and 750 Rpm is indicated in D382.
D33=0
D31
D30 D32=0
+
0
1
+
D381 D382
0
0
1
1
2
2
6
7
Figure 5-3 Main reference value + absolute reference value
D33=0
D31=0
D30
+
+
0
1
2
6
D381 D382
n-actual
CorrectionRV1
Preset RVs
Ref. val. ext.
Additive
ref. val.
source
Main reference
value source
Selected main
ref. value
Ref. val.
after
a
ddition
Factor
ref. val.
source
Additive ref. val.
source
Main
r
ef. val.
source
Additive
ref. val.
mode
Selected main
ref. value
Ref. va.
after
addition
Facto
r
ref. val.
source
Ref. val. ext.
Preset RVs
Corr. RV1
n-actual
Inactive
Ref. val. ext.
Preset ref. val.
Fix value