Group 30 Fault Functions Drive ACS550 ABB

Group 30: FAULT FUNCTIONS ACS550 ABB

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 3001

AI<MIN FUNCTION

Defines the drive response if the analog input (AI) signal drops below the fault limits and AI is used

as the active reference source (Group 11: REFERENCE SELECT)
as the Process or External PID controllers' feedback or setpoint source (Group 40: PROCESS PID SET 1, Group

41: PROCESS PID SET 2 or Group 42: EXT / TRIM PID) and the corresponding PID controller is active.
3021 AI1 FAULT LIMIT and 3022 AI2 FAULT LIMIT set the fault limits.
0 = NOT SEL – No response.
1 = FAULT – Displays a fault (7, AI1 LOSS or 8, AI2 LOSS) and the drive coasts to stop.
2 = CONST SP 7 – Displays an alarm (2006, AI1 LOSS or 2007, AI2 LOSS) and sets speed using 1208 CONST SPEED 7.
3 = LAST SPEED – Displays an alarm (2006, AI1 LOSS or 2007, AI2 LOSS) and sets speed using the last operating level.
This value is the average speed over the last 10 seconds.
WARNING! If you select CONST SP 7 or LAST SPEED, make sure that continued operation is safe when the analog input signal is lost.

Code 3002

PANEL COMM ERR

Defines the drive response to a control panel communication error.
1 = FAULT – Displays a fault (10, PANEL LOSS) and the drive coasts to stop.
2 = CONST SP 7 – Displays an alarm (2008, PANEL LOSS) and sets speed using 1208 CONST SPEED 7.
3 = LAST SPEED – Displays an alarm (2008, PANEL LOSS) and sets speed using the last operating level. This value is
the average speed over the last 10 seconds.
Note: When either of the two external control locations are active, and start, stop and/or direction are through the
control panel – 1001 EXT1 COMMANDS / 1002 EXT2 COMMANDS = 8 (KEYPAD) – the drive follows speed/frequency
reference according to the configuration of the external control locations, instead of the value of the last speed or
parameter 1208 CONST SPEED 7.
WARNING! If you select CONST SP 7 or LAST SPEED, make sure that continued operation is safe when the control panel communication is lost.

Code 3003

EXTERNAL FAULT 1

Defines the External Fault 1 signal input and the drive response to an external fault.
0 = NOT SEL – External fault signal is not used.
1 = DI1 – Defines digital input DI1 as the external fault input.

Activating the digital input indicates a fault. The drive displays a fault (14, EXT FAULT 1) and the drive coasts to stop. 2…6 = DI2…DI6 – Defines digital input DI2…DI6 as the external fault input.
See DI1 above. -1 = DI1(INV) – Defines an inverted digital input DI1 as the external fault input.
De-activating the digital input indicates a fault. The drive displays a fault (14, EXT FAULT 1) and the drive coasts to stop. -2…-6 = DI2(INV)…DI6(INV) – Defines an inverted digital input DI2…DI6 as the external fault input. See DI1(INV) above.

Code 3004

EXTERNAL FAULT 2

Defines the External Fault 2 signal input and the drive response to an external fault.

See parameter 3003 above

Code 3005

MOT THERM PROT

Defines the drive response to motor overheating.
0 = NOT SEL – No response and/or motor thermal protection not set up.
1 = FAULT – When the calculated motor temperature exceeds 90 °C, displays an alarm (2010, MOTOR TEMP). When
the calculated motor temperature exceeds 110 °C, displays a fault (9, MOT OVERTEMP) and the drive coasts to stop.
2 = ALARM – When the calculated motor temperature exceeds 90 °C, displays an alarm (2010, MOTOR TEMP).

Code 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: MOTOR THERM TIME equals 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.

Code 3007

MOT LOAD CURVE

Sets the maximum allowable operating load of the motor.

With the default value 100%, motor overload protection is functioning when the constant current exceeds 127% of the parameter 9906 MOTOR NOM CURR value.
The default overloadability is at the same level as what motor manufacturers typically allow below 30 °C (86 °F) ambient temperature and below 1000 m (3300 ft) altitude. When the ambient temperature exceeds 30 °C (86 °F) or the installation altitude is over 1000 m (3300 ft), decrease the parameter 3007 value according to the motor manufacturer’s recommendation.

Example: If the constant protection level needs to be 115% of

the motor nominal current, set parameter 3007 value to 91%

(= 115/127·100%).

Code 3008

ZERO SPEED LOAD

Sets the maximum allowable current at zero sp

Value is relative to 9906 MOTOR NOM CURR

Code 3009

BREAK POINT FREQ

Sets the break point frequency for the motor load curve

Example: Thermal protection trip times when parameters 3006 MOT THERM TIME, 3007 MOT LOAD CURVE and 3008
ZERO SPEED LOAD have default values

Code 3010

STALL FUNCTION

This parameter defines the operation of the Stall function. This
protection is active if the drive operates in the stall region (see the
figure) for the time defined by 3012 STALL TIME. The “User Limit” is
defined in Group 20: LIMITS by 2017 MAX TORQUE 1, 2018 MAX TORQUE
2, or the limit on the COMM input.
0 = NOT SEL – Stall protection is not used.
1 = FAULT – When the drive operates in the stall region for the time set
by 3012 STALL TIME:

The drive coasts to stop.
A fault indication is displayed. 2 = ALARM – When the drive operates in the stall region for the time set by 3012 STALL TIME:
An alarm indication is displayed.
The alarm disappears when the drive is out of the stall region for half the time set by parameter 3012 STALL TIME.

Code 3011

STALL FREQUENCY

This parameter sets the frequency value for the Stall function. Refer to the figure

Code 3012

STALL TIME

This parameter sets the time value for the Stall function.

Code 3017

EARTH FAULT

Defines the drive response if the drive detects a ground fault in the motor or motor cables. The drive monitors for
ground faults while the drive is running, and while the drive is not running. Also see parameter 3023 WIRING FAULT.
0 = DISABLE – No drive response to ground faults.
Note: Disabling earth fault (ground fault) may void the warranty.
1 = ENABLE – Ground faults display fault 16 (EARTH FAULT), and (if running) the drive coasts to stop.

Code 3018

COMM FAULT FUNC

Defines the drive response if the fieldbus communication is lost.
0 = NOT SEL – No response.
1 = FAULT – Displays a fault (28, SERIAL 1 ERR) and the drive coasts to stop.
2 = CONST SP 7 – Displays an alarm (2005, I/O COMM) and sets speed using 1208 CONST SPEED 7. This “alarm speed” remains active until the fieldbus writes a new reference value.
3 = LAST SPEED – Displays an alarm (2005, I/O COMM) and sets speed using the last operating level. This value is the average speed over the last 10 seconds. This “alarm speed” remains active until the fieldbus writes a new reference value.

WARNING! If you select CONST SP 7, or LAST SPEED, make sure that continued operation is safe when fieldbus communication is lost.

Code 3019

COMM FAULT TIME

Sets the communication fault time used with 3018 COMM FAULT FUNC.

Brief interruptions in the fieldbus communication are not treated as faults if they are less than the COMM FAULT TIME value.

Code 3021

AI1 FAULT LIMIT

Sets a fault level for analog input 1.

See 3001 AI<MIN FUNCTION.

Code 3022

AI2 FAULT LIMIT

Sets a fault level for analog input 2.

See 3001 AI<MIN FUNCTION.

Code 3023

WIRING FAULT

Defines the drive response to cross wiring faults and to ground faults detected when the drive is NOT running. When the drive is not running it monitors for:

Improper connections of input power to the drive output (the drive can display fault 35, OUTPUT WIRING if improper connections are detected).
Ground faults (the drive can display fault 16, EARTH FAULT if a ground fault is detected). Also, see parameter 3017

EARTH FAULT.

0 = DISABLE – No drive response to either of the above monitoring results.
Note: Disabling wiring fault (ground fault) may void the warranty.
1 = ENABLE – The drive displays faults when this monitoring detects problems.

Code 3024

CB TEMP FAULT

Defines the drive response to control board overheating. Not for drives with an OMIO control board.
0 = DISABLE – No response.
1 = ENABLE – Displays fault 37 (CB OVERTEMP) and the drive coasts to stop.