ABB ACH550-01 User Manual page 249

Group 30: FAULT FUNCTIONS
This group defines situations that the drive should recognise as
potential faults and how the drive should respond if the fault is
detected.
Code Description
3001 AI<MIN FUNCTION
Defines the drive response if the analogue input (
the fault limits and
• as the active reference source
• as the Process or External PID controllers' feedback or setpoint
source (Group 40: PROCESS PID SET
SET 2 or Group 42: EXT / TRIM
controller is active.
3021 1
AI FAULT LIMIT
0 = – No response.
NOT SEL
1 = – Displays a fault (7,
FAULT
coasts to stop.
2 =
CONST SP
and sets the speed using 1208
3 =
LAST SPEED
and sets the speed using the last operating level. This value is the
average speed over the last 10 seconds.
WARNING! If you select
continued operation is safe when the analogue input signal is lost.
3002 PANEL COMM ERR
Defines the drive response to a control panel (operator keypad)
communication error.
1 = – Displays a fault (10,
FAULT
stop.
2 =
CONST SP
speed using 1208
3 =
LAST SPEED
speed using the last operating level. This value is the average speed
over the last 10 seconds.
WARNING! If you select
continued operation is safe when the control panel communication
is lost.
244
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is used:
AI
(Group 11: REFERENCE
and 3022 2
AI
1
AI
7 – Displays an alarm (2006,
– Displays an alarm (2006,
CONST SP
PANEL LOSS
7 – Displays an alarm (2008,
CONST SPEED
– Displays an alarm (2008,
CONST SP
Parameter listing and descriptions
ACH550-01 User's Manual
Range
0...3
) signal drops below
AI
1, Group 41: PROCESS PID
PID) and the corresponding PID
set the minimum limits.
FAULT LIMIT
or 8, 2
LOSS AI LOSS
1 or 2007,
AI LOSS
7.
CONST SPEED
1 or 2007,
AI LOSS
7 or
LAST SPEED
1...3
) and the drive coasts to
PANEL LOSS
7.
PANEL LOSS
7 or
LAST SPEED
SELECT)
) and the drive
2 )
AI LOSS
2 )
AI LOSS
, make sure that
) and sets the
) and sets the
, make sure that