ABB ACS320 - Reference Scaling

Fieldbus control 355
 Reference scaling
ABB Drives and DCU profiles
The following table describes
REFERENCE scaling for the ABB Drives profile.
Note: The setting of parameter 1104 REF1 MIN and 1107 REF2 MIN has no effect on
the scaling of references.
When parameter 1103 REF1 SELECT or 1106 REF2 SELECT is set to
COMM+AI1 or
COMM*AI1, the reference is scaled as follows:
ABB Drives and DCU Profiles
Reference Range
Reference
Type
Scaling Remarks
REF1 -32767
…
+32767
Frequency -20000 = -(par. 1105)
0 = 0
+20000 = (par. 1105)
(20000 corresponds to
100%)
Final reference limited by
1104/1105. Actual motor
speed limited by 2007/2008
(frequency).
REF2 -32767
…
+32767
Frequency -10000 = -(par. 1108)
0 = 0
+10000 = (par. 1108)
(10000 corresponds to
100%)
Final reference limited by
1107/1108. Actual motor
speed limited by 2007/2008
(frequency).
PID
Reference
-10000 = -(par. 1108)
0 = 0
+10000 = (par. 1108)
(10000 corresponds to
100%)
Final reference limited by
4012/4013 (PID set1) or
4112/4113 (PID set2).
ABB Drives and DCU Profiles
Reference AI Reference Scaling
REF1 ))
0%
50%
(100 + 0.5 * (Par. 1105)%
(100 - 0.5 * (par. 1105))%
100%
100%
AI1 Input Signal
Fieldbus Reference
Correction Coefficient