Group 30: Fault Functions - ABB ACS550 User Manual

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Group 30: FAULT FUNCTIONS

This group defines situations that the drive should recognize as potential faults and
defines how the drive should respond if the fault is detected.
Code Description
3001 AI<MIN FUNCTION
Defines the drive response if the analog input (
• 3021 1
AI FAULT LIMIT
0 = – No response.
NOT SEL
1 = – Displays a fault (7,
FAULT
2 = 7 – Displays an alarm (2006,
CONST SP
3 = – Displays an alarm (2006,
LAST SPEED
This value is the average speed over the last 10 seconds.
WARNING! If you select
analog input signal is lost.
3002 PANEL COMM ERR
Defines the drive response to a control panel communication error.
1 = – Displays a fault (10,
FAULT
2 = 7 – Displays an alarm (2008,
CONST SP
3 = – Displays an alarm (2008,
LAST SPEED
the average speed over the last 10 seconds.
WARNING! If you select
control panel communication is lost.
3003 EXTERNAL FAULT 1
Defines the External Fault 1 signal input and the drive response to an external fault.
0 = – External fault signal is not used.
NOT SEL
1 = 1 – Defines digital input
DI
• Activating the digital input indicates a fault. The drive displays a fault (14,
stop.
2...6 = 2... 6 – Defines digital input
DI DI
• See 1 above.
DI
-1 = 1( ) – Defines an inverted digital input
DI INV
• De-activating the digital input indicates a fault. The drive displays a fault (14,
stop.
-2...-6 = 2( )...
DI INV DI
• See 1( ) above.
DI INV
3004 EXTERNAL FAULT 2
Defines the External Fault 2 signal input and the drive response to an external fault.
• See parameter 3003 above.
3005 MOT THERM PROT
Defines the drive response to motor overheating.
0 = – No response and/or motor thermal protection not set up.
NOT SEL
1 = – When the calculated motor temperature exceeds 90 °C, displays an alarm (2010,
FAULT
the calculated motor temperature exceeds 110 °C, displays a fault (9,
2 = – When the calculated motor temperature exceeds 90 °C, displays an alarm (2010,
ALARM
3006 MOT THERM TIME
Sets the motor thermal time constant for the motor temperature
model.
• This is the time required for the motor to reach 63% of the final
temperature with steady load.
• For thermal protection according to UL requirements for NEMA
class motors, use the rule of thumb:
35 times t6, where t6 (in seconds) is specified by the motor
manufacturer as the time that the motor can safely operate at six
times its rated current.
• The thermal time for a Class 10 trip curve is 350 s, for a Class
20 trip curve 700 s, and for a Class 30 trip curve 1050 s.
Parameters
AI
and 3022 2
AI FAULT LIMIT
1 or 8,
AI LOSS AI
1
AI
1
AI LOSS
7 or
CONST SP
) and the drive coasts to stop.
PANEL LOSS
PANEL LOSS
PANEL LOSS
7 or
CONST SP
1 as the external fault input.
DI
2... 6 as the external fault input.
DI DI
6( ) – Defines an inverted digital input
INV
MOTOR THERM TIME
) signal drops below the fault limits and
set the fault limits
2 ) and the drive coasts to stop.
LOSS
or 2007, 2 ) and sets speed using 1208
LOSS AI LOSS
or 2007, 2 ) and sets speed using the last operating level.
AI LOSS
, make sure that continued operation is safe when the
LAST SPEED
) and sets speed using 1208
) and sets speed using the last operating level. This value is
, make sure that continued operation is safe when the
LAST SPEED
1 as the external fault input.
DI
2... 6 as the external fault input.
DI DI
MOT OVERTEMP
Motor load
Temp. rise
equals
ACS550 User's Manual
is used in reference chain.
AI
CONST SPEED
7.
CONST SPEED
1) and the drive coasts to
EXT FAULT
1) and the drive coasts to
EXT FAULT
MOTOR TEMP
) and the drive coasts to stop.
MOTOR TEMP
100%
63%
P 3006
7.
). When
).
t
t