224 ACS550-02/U2 User’s Manual
Embedded fieldbus
Input reference select
Using the fieldbus to provide input references to the drive requires:
• drive parameter values set as defined below
• fieldbus controller supplied reference word(s) in the appropriate location. (The
location is defined by the Protocol Reference, which is protocol dependent.)
Reference Scaling
Where required,
REFERENCES can be scaled. See the following, as appropriate:
• Modbus Register 40002 in section Modbus protocol technical data on page 231
• Reference scaling in section ABB control profiles technical data on page 239.
Miscellaneous drive control
Using the fieldbus for miscellaneous drive control requires:
• drive parameter values set as defined below
• fieldbus controller supplied command(s) in the appropriate location. (The location
is defined by the Protocol Reference, which is protocol dependent.)
Drive parameter Value Description
Modbus protocol
reference
ABB DRV DCU PROFILE
1102 EXT1/EXT2 SEL 8 (COMM) Reference set selection by fieldbus. 40001 bit 11 40031 bit 5
1103
REF1 SELECT 8 (COMM) Input reference 1 by fieldbus. 40002
1106
REF2 SELECT 8 (COMM) Input reference 2 by fieldbus. 40003
Drive parameter Value Description
Modbus
protocol
reference
ABB DRV DCU PROFILE
1601 RUN ENABLE 7 (COMM) Run enable by fieldbus. 40001 bit 3 40031 bit 6
(inverted)
1604
FAULT RESET SEL 8 (COMM) Fault reset by fieldbus. 40001 bit 7 40031 bit 4
1606
LOCAL LOCK 8 (COMM) Source for local lock selection is
the fieldbus.
Does not
apply
40031 bit 14
1607
PARAM SAVE 1 (SAVE) Saves altered parameters to
memory (then value returns to 0).
41607
1608
START ENABLE 17 (COMM) Source for start enable 1 is the
fieldbus Command word.
Does not
apply.
40032 bit 2
1609 START ENABLE 27 (COMM) Source for start enable 2 is the
fieldbus Command word.
40032 bit 3
2013
MIN TORQUE SEL 7 (COMM) Source for minimum torque
selection is the fieldbus.
40031 bit 15
2014
MAX TORQUE SEL 7 (COMM) Source for maximum torque
selection is the fieldbus.
2201 ACC/DEC 1/2 SEL 7 (COMM) Source for ramp pair selection is
the fieldbus.
40031 bit 10
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