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

Relay outputs
(RO)
Analog out-
puts (AO)
Analog inputs
(AI)
Digital I/Os
(DIO)
Digital inputs
(DI)
Location
2---3FDIO-01
Three I/O extension modules can be activated and configured using parameter
groups 14…16.
Note: Each configuration parameter group contains parameters that display the
values of the inputs on that particular extension module. These parameters are
the only way of utilizing the inputs on I/O extension modules as signal sources.
To connect to an input, choose the setting Other in the source selector parameter,
then specify the appropriate value parameter (and bit, for digital signals) in group
14, 15 or 16.
Settings and diagnostics
Parameter groups: 14 I/O extension module 1 (page 236), 15 I/O extension module
2 (page 264) and 16 I/O extension module 3 (page 270).
Parameter: 60.41 Extension adapter com port (page 500)
Events: 7082 Ext I/O comm loss (page 666) and A799 ExtIO comm loss (page 682).
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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 705) and Fieldbus control through a fieldbus adapter (page 729).
Settings and diagnostics
Parameter groups: 50 Fieldbus adapter (FBA) (page 463), 51 FBA A settings (page 472),
52 FBA A data in (page 474), 53 FBA A data out (page 475), 54 FBA B settings (page 476),
55 FBA B data in (page 478), 56 FBA B data out (page 479) and 58 Embedded
fieldbus (page 480).
Events: 7510 FBA A communication (page 669), 7520 FBA B communication (page 669),
A7C1 FBA A communication (page 685), A7C2 FBA B communication (page 685) and
A7CE EFB comm loss (page 685).
￭
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
72 Program features