ABB ACS550 - Page 238

238 ACS550 User’s Manual
Fieldbus adapter
Reference handling
Use Group 10: START/STOP/DIR parameters to configure for control of rotation
direction for each control location (
EXT1 and EXT2). The following diagrams illustrate
how group 10 parameters and the sign of the fieldbus reference interact to produce
REFERENCE values (REF1 and REF2). Note, fieldbus references are bipolar, that is
they can be positive or negative.
ABB Drives profile
Parameter Value setting AI reference scaling
1003
DIRECTION 1 (FORWARD)
1003
DIRECTION 2 (REVERSE)
1003
DIRECTION 3 (REQUEST)
100%
Max. ref
-100%
-163%
163%
-(Max. ref.)
Fieldbus
Resultant ref.
reference
100%
Max. ref
-100%
-163%
163%
-(Max. ref.)
Fieldbus
Resultant ref.
reference
100%
Max. ref
-100%
-163%
163%
-(Max. ref.)
Fieldbus
Resultant ref.
reference