ACQ550-U1 User’s Manual 255
Diagnostics
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: EXT COMM MODULE or Group 53:
EFB PROTOCOL as appropriate).
• Poor connections and/or noise on line.
29
EFB CON 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.
31 EFB 1 Fault code reserved for the embedded fieldbus (EFB) protocol application.
The meaning is protocol dependent.
32 EFB 2
33
EFB 3
34 MOTOR PHASE Fault in the motor circuit. One of the motor phases is lost. Check for and
correct:
• Motor fault.
• Motor cable fault.
• Thermal relay fault (if used).
• Internal fault.
35
OUTP WIRING Possible power wiring error detected. When the drive is not running it
monitors for an improper connection between the drive input power and the
drive output. Check for and correct:
• Proper input wiring – line voltage is NOT connected to drive output.
• The fault can be erroneously declared if the input power is a delta
grounded system and motor cable capacitance is large. This fault can be
disabled using parameter 3023 WIRING FAULT.
36 INCOMPATIBLE
SW
The drive cannot use the software.
• Internal fault.
• The loaded software is not compatible with the drive.
• Call support representative.
37
CB OVERTEMP Drive control board is overheated. The fault trip limit is 88 °C. Check for and
correct:
• Excessive ambient temperature.
• Fan failure.
• Obstructions in the air flow.
38
USER LOAD
CURVE
Condition defined by parameter 3701 USER LOAD C MODE has been valid
longer than the time defined by 3703
USER LOAD C TIME.
101…
199
SYSTEM ERROR Error internal to the drive. Contact your local ABB representative and report
the error number.
201…
299
SYSTEM ERROR Error in the system. Contact your local ABB representative and report the
error number.
-
UNKNOWN
DRIVE TYPE:
ACQ550
SUPPORTED
DRIVES: X
Wrong type of panel, i.e. panel that supports drive X but not the ACQ550,
has been connected to the ACQ550.
Fault
code
Fault name in
panel
Description and recommended corrective action