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
Summary of Contents for ACQ550-U1-011A-6
Page 1: ...ACQ550 User s Manual ACQ550 U1 Drives 1 200 hp ...
Page 4: ......
Page 10: ...10 ACS550 U1 User s Manual Table of contents ...
Page 42: ...42 ACQ550 U1 User s Manual Start up control with I O and ID Run ...
Page 56: ...56 ACQ550 U1 User s Manual Control panel ...
Page 68: ...68 ACQ550 U1 User s Manual Application macros ...
Page 250: ...250 ACQ550 U1 User s Manual Fieldbus adapter ...
Page 266: ...266 ACQ550 U1 User s Manual Maintenance ...
Page 314: ...314 ACQ550 U1 User s Manual Index ...