ABB ACH580 Series User Manual page 189

180
Reference handling
Use drive parameter 20.21 to control the rotation direction when using FBA A
reference 1, FBA A reference 2, EFB reference 1 or EFB reference 2. The following
diagrams illustrate how parameter 20.21 and the sign of the fieldbus reference
interact to produce Reference values.
Note: Fieldbus references are bipolar; that is, they can be positive or negative.
Parameter
20.21 Direction
20.21 Direction
20.21 Direction
Fieldbus adapter
ACH580 E-Clipse bypass and packaged drive user manual
ABB Drives Profile
Value Setting
1 (Forward)
Max. Ref
Fieldbus
Reference
-(Max. Ref.)
2 (Reverse)
Max. Ref
Fieldbus
Reference
-(Max. Ref.)
3 (Request)
Max. Ref
Fieldbus
Reference
-(Max. Ref.)
Resultant Reference
Resultant Ref.
-100%
Resultant Ref.
-100%
Resultant Ref.
-100%
100%
100%
100%