258 ACS550-02/U2 User’s Manual
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
section Complete parameter descriptions on page 128.
Scaling
To scale the drive parameter values see the following sections, as appropriate:
• Actual Value scaling on page 269 (ABB Drives profile technical data)
• Actual Value scaling on page 271 (Generic profile technical data).
Drive parameter Value Setting
Protocol
reference
4010
SET POINT SEL (Set 1) 8 (COMM VALUE 1)
9 (COMM+AI1)
10 (COMM
*
AI1)
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 SP7)
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 OUTPUT FREQ
0104 CURRENT
0105 TORQUE
0106 POWER
0107 DC BUS VOLTAGE
0109 OUTPUT VOLTAGE
0301 FB CMD WORD 1 – bit 0 (STOP)
0301
FB CMD WORD 1 – bit 2 (REV)
0118
DI 1-3 STATUS – bit 0 (DI3)
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