Diagnostics and maintenance 375
ACH550-01 User's 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 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.
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
fieldbus adapter.
30
FORCE TRIP Fault trip forced by the fieldbus. See the
fieldbus user’s manual.
31
EFB 1 Fault code reserved for the EFB protocol
application. The meaning is protocol
dependent.
32
EFB 2
33
EFB 3
Fault
code
Fault name in
the panel
Description and
recommended corrective action
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