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ACS550 User’s Manual
203
Diagnostics
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
.
17
UNDERLOAD
Motor load is lower than expected. Check for and correct:
• Disconnected load.
• Parameters 3013
UNDERLOAD
FUNCTION
…3015
UNDERLOAD
CURVE
.
18
THERM
FAIL
Internal fault. The thermistor measuring the internal temperature of the
drive is open or shorted. Contact your local ABB sales representative.
19
OPEX
LINK
Internal fault. A communication-related problem has been detected on the
fiber optic link between the OITF and OINT boards. Contact your local ABB
sales representative.
20
OPEX
PWR
Internal fault. Low voltage condition detected on OINT power supply.
Contact your local ABB sales representative.
21
CURR
MEAS
Internal
fault.
Current measurement is out of range. Contact your local ABB
sales representative.
22
SUPPLY
PHASE
Ripple voltage in the DC link is too high. Check for and correct:
• Missing mains phase.
• Blown fuse.
23
If this error code appears, refer to the appropriate accessory manual.
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
R
ESERVED
Not used.
26
DRIVE
ID
Internal fault. Configuration Block Drive ID is not valid. Contact your local
ABB sales representative.
27
CONFIG
FILE
Internal configuration file has an error. Contact your local ABB sales
representative.
28
SERIAL
1
ERR
Fieldbus communication has timed out. Check for and correct:
• Fault setup (3018
COMM
FAULT
FUNC
and 3019
COMM
FAULT
TIME
).
• Communication settings (Group 51 or 53 as appropriate).
• Poor connections and/or noise on line.
29
EFB
CONFIG
FILE
Error in reading the configuration file for the embedded fieldbus.
30
FORCE
TRIP
Fault trip forced by the fieldbus. See the fieldbus User’s Manual.
Fault
Code
Fault Name In
Panel
Description and Recommended Corrective Action