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196
ACS550 User’s Manual
Embedded fieldbus
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.
Drive parameter
Value
Description
Modbus
protocol
reference
ABB
DRV
DCU
PROFILE
4010
SET
POINT
SEL
(Set 1)
8 (
COMM
VALUE
1)
9 (
COMM
+
AI
1)
10 (
COMM
*
AI
1)
Setpoint is input reference 2
(+/-/* AI1)
40003
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.
Содержание ACS550 Series
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