ABB ACS280 Firmware Manual page 376

Fieldbus control through the embedded fieldbus interface (EFB)
376
CANopen
 CANopen
Embedded fieldbus with CANopen protocol is standard for ACS280 drive.
The embedded CANopen operates on multiple time levels. High priority cyclical
data (control word, references, status word and actual values), and most of
CANopen message handling are processed at 2ms time level. SDO messages
and drive parameter access are processed at 10ms time level. Saving objects
into non-volatile memory and restoring objects from non-volatile memory are
processed in the background task.
The drive can be set to receive all of its control information through the fieldbus
interface, or the control can be distributed between the embedded fieldbus
interface and other available sources, for example, digital and analog inputs.
Connecting the fieldbus to the drive
Connect the fieldbus to grey terminal on the drive. The pin 10 is to connect with
CANH, pin 11 is to connect with CANL, and pin 12 is to connect with AGND.
Note: When taking the CANopen module into use, it is recommended that the
cord is not connected during the first start. This is to avoid disturbing the CAN
bus when the drive attempts to recognize the attached module.