ABB DriveIT ACH550-01 User Manual page 148

Communication fault functions
Code Description
3018 COMM FAULT FUNC
Defines the drive response if the fieldbus communication is lost.
0 =
NOT SEL
1 = – Displays a fault (
FAULT
stop.
2 =
CONST SP
using 1208
3 =
LAST SPEED
using the last operating level. This value is the average speed over
the last 10 seconds.
Caution: If you select const speed 7, or last speed, make sure that
continued operation is safe when fieldbus communication is lost.
3019 COMM FAULT TIME
Sets the communication fault time used with 3018
• Brief interruptions in the fieldbus communication are not treated as
faults if they are less than the
PID control setpoint source selection
Code Description
4010 SET POINT SEL
Defines the reference signal source for the PID controller.
• Parameter has no significance when the PID regulator is by-
passed (see 8121
8 = comm – Fieldbus provides reference.
9 =
COMM
combination as the reference source. See Analog Input Reference
Correction below.
10 =
COMM
combination as the reference source. See Analog Input Reference
Correction below.
144
– No response.
IO COMM ERROR
7 – Displays a warning (
7.
CONST SPEED
– Displays a warning (
REG BYPASS CTRL
+ 1 – Defines a fieldbus and analog input 1 (
AI
* 1 – Defines a fieldbus and analog input 1 (
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ACH550 User's Manual
Range
0...3
) and the drive coasts to
IO COMM ERROR
IO COMM ERROR
0...60.0 s
COMM FAULT FUNC
value.
COMM FAULT TIME
Range
0...19
).
Serial communications
) and sets speed
) and sets speed
.
1)
AI
1)
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