ABB ACS320 - Page 357

Fieldbus control 357
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: Start/Stop/Dir 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 1 ()
1003 2 ()
1003 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