ACH550 E-Clipse Bypass User’s Manual 2-219
Fieldbus adapter
Reference handling
Use group 10 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
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