ACH550-UH User’s Manual 1-247
Embedded fieldbus
ABB control profiles technical data
Overview
ABB drives profile
The ABB Drives profile provides a standard profile that can be used on multiple
protocols, including Modbus and the protocols available on the FBA module. Two
implementations of the ABB Drives profile are available:
•
ABB DRV FULL – This implementation standardizes the control interface with
ACS600 and ACS800 drives.
•
ABB DRV LIM – This implementation standardizes the control interface with
ACH400 and ACH550 drives. This implementation does not support two control
word bits supported by
ABB DRV FULL.
Except as noted, the following “ABB Drives Profile” descriptions apply to both
implementations.
DCU profile
The DCU profile extends the control and status interface to 32 bits, and is the
internal interface between the main drive application and the embedded fieldbus
environment.
Control Word
The
CONTROL WORD is the principal means for controlling the drive from a fieldbus
system. The fieldbus master station sends the
CONTROL WORD to the drive. The drive
switches between states according to the bit-coded instructions in the
CONTROL
WORD. Using the CONTROL WORD (ABB Drives profile version) requires that:
• The drive is in remote (
REM) control.
• The serial communication channel is defined as the source for controlling
commands (set using parameters 1001
EXT1 COMMANDS, 1002 EXT2 COMMANDS
and 1102
EXT1/EXT2 SEL).
• The serial communication channel used is configured to use an ABB control
profile. For example, to use the control profile
ABB DRV FULL, requires both
parameter 9802
COMM PROT SEL = 1 (STD MODBUS), and parameter 5305 EFB CTRL
PROFILE = 2 (ABB DRV FULL).
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