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ACS550 User’s Manual
187
Fieldbus Adapter
PID Control Setpoint Source
Using the following settings to select the fieldbus as the setpoint source for PID
loops:
Communication Fault
When using fieldbus control, specify the drive’s action if serial communication is lost.
Feedback from the Drive – FBA
Inputs to the controller (drive outputs) have pre-defined meanings established by the
protocol. This feedback does not require drive configuration. The following table lists
a sample of feedback data. For a complete listing, see all parameters listed in
"Complete Parameter Descriptions".
Scaling
To scale the drive parameter values see the "Actual Value Scaling" in the following
sections, as appropriate:
•
"ABB Drives Profile Technical Data"
•
"Generic Profile Technical Data"
Drive Parameter
Value
Setting
Protocol
Reference
4010
SET
POINT
SEL
(Set 1)
8 (
COMM
VALUE
1)
9 (
COMM
+
AI
1)
10 (
COMM
*
AI
1)
Setpoint is input reference 2
(+/-/* AI1)
4110
SET
POINT
SEL
(Set 2)
4210
SET
POINT
SEL
(Ext/Trim)
Drive Parameter
Value
Description
3018
COMM
FAULT
FUNC
0 (
NOT
SEL
)
1 (
FAULT
)
2 (
CONST
SP
7)
3 (
LAST
SPEED
)
Set for appropriate drive
response.
3019
COMM
FAULT
TIME
Set time delay before acting on a communication loss.
Drive Parameter
Protocol Reference
0102
SPEED
0103
FREQ OUTPUT
0104
CURRENT
0105
TORQUE
0106
POWER
0107
DC BUS VOLT
0109
OUTPUT VOLTAGE
0301
FB STATUS WORD – bit 0 (STOP)
0301
FB STATUS WORD – bit 2 (REV)
0118
DI1-3 STATUS – bit 1 (DI3)