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ACH580 E-Clipse bypass and packaged drive user manual
Fieldbus adapter
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.
ABB Drives Profile
Parameter
Value Setting
Resultant Reference
20.21 Direction
1 (Forward)
20.21 Direction
2 (Reverse)
20.21 Direction
3 (Request)
100%
Max. Ref
-100%
-(Max. Ref.)
Fieldbus
Resultant Ref.
Reference
100%
Max. Ref
-100%
-(Max. Ref.)
Fieldbus
Resultant Ref.
Reference
100%
Max. Ref
-100%
-(Max. Ref.)
Fieldbus
Resultant Ref.
Reference
Summary of Contents for ACH580 Series
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