ABB ACQ550-x1-06A6-2 - Page 254

254 ACQ550-U1 User’s Manual
Diagnostics
12 MOTOR STALL Motor or process stall. Motor is operating in the stall region. Check for and
correct:
• Excessive load.
• Insufficient motor power.
• Parameters 3010…3012.
13
RESERVED Not used.
14 EXT FAULT 1 Digital input defined to report first external fault is active. See parameter
3003
EXTERNAL FAULT 1.
15
EXT FAULT 2 Digital input defined to report second external fault is active. See parameter
3004
EXTERNAL FAULT 2.
16 EARTH FAULT Possible ground fault detected in the motor or motor cables. The drive
monitors for ground faults while the drive is running and while the drive is
not running. Detection is more sensitive when the drive is not running and
can produce false positives.
Possible corrections:
• Check for/correct faults in the input wiring.
• Verify that motor cable does not exceed maximum specified length.
• A delta grounded input power supply and motor cables with high
capacitance may result in erroneous error reports during non-running
tests. To disable response to fault monitoring when the drive is not
running, use parameter 3023
WIRING FAULT. To disable response to all
ground fault monitoring, use parameter 3017
EARTH FAULT.
Note: Disabling earth fault (ground fault) may void the warranty.
17 OBSOLETE Not used.
18 THERM FAIL Internal fault. The thermistor measuring the internal temperature of the
drive is open or shorted. Contact your local ABB representative.
19
OPEX LINK Internal fault. A communication-related problem has been detected on the
fiber optic link between the control and OINT boards. Contact your local
ABB representative.
20
OPEX PWR Internal fault. Exceptionally low voltage detected on the OINT power supply.
Contact your local ABB representative.
21
CURR MEAS Internal fault. Current measurement is out of range. Contact your local ABB
representative.
22
SUPPLY PHASE Ripple voltage in the DC link is too high. Check for and correct:
• Missing mains phase.
• Blown fuse.
23
OBSOLETE
24 OVERSPEED Motor speed is greater than 120% of the larger (in magnitude) of 2001
MINIMUM SPEED or 2002 MAXIMUM SPEED. Check for and correct:
• Parameter settings for 2001 and 2002.
• Adequacy of motor braking torque.
• Applicability of torque control.
• Brake chopper and resistor.
25
RESERVED Not used.
26
DRIVE ID Internal fault. Configuration Block Drive ID is not valid. Contact your local
ABB representative.
27
CONFIG FILE Internal configuration file has an error. Contact your local ABB
representative.
Fault
code
Fault name in
panel
Description and recommended corrective action