ABB ACS550 Series, User Manual

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228 ACS550 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 98 .
Scaling
To scale the drive parameter values see the following sections, as appropriate:
• Actual Value scaling on page 239 ( ABB Drives profile technical data )
• Actual Value scaling on page 241 ( 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
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)