ABB ACS880 - Settings and Diagnostics; Fieldbus Control; Master;Follower Functionality; General

Settings and diagnostics
Parameter groups: 14 I/O extension module 1 (page 199), 15 I/O extension module
2 (page 226) and 16 I/O extension module 3 (page 232).
Parameter: 60.41 Extension adapter com port (page 451)
Events: 7082 Ext I/O comm loss (page 553) and A799 ExtIO comm loss (page 569).
￭ Fieldbus control
The drive can be connected to several different automation systems through its fieldbus
interfaces. See chapter Fieldbus control through the embedded fieldbus interface
(EFB) (page 587) and Fieldbus control through a fieldbus adapter (page 609).
Settings and diagnostics
Parameter groups: 50 Fieldbus adapter (FBA) (page 415), 51 FBA A settings (page 424),
52 FBA A data in (page 426), 53 FBA A data out (page 427), 54 FBA B settings (page 428),
55 FBA B data in (page 430), 56 FBA B data out (page 431) and 58 Embedded
fieldbus (page 432).
Events: 7510 FBA A communication (page 556), 7520 FBA B communication (page 556),
A7C1 FBA A communication (page 571), A7C2 FBA B communication (page 571) and
A7CE EFB comm loss (page 572).
￭ Master/follower functionality
General
The master/follower functionality can be used to link several drives together so that the
load can be evenly distributed between the drives. This is ideal in applications where
the motors are coupled to each other via gearing, chain, belt, etc.
The external control signals are typically connected to one drive only which acts as the
master. The master controls up to 10 followers by sending broadcast messages over
an electrical cable or fiber optic link. The master can read feedback signals from up to
3 selected followers.
34 Program features