ABB ACH550-01 User Manual page 364

Fault Fault name in
code the panel
12
MOTOR STALL
13
RESERVED
14
EXT FAULT
15
EXT FAULT
16
EARTH FAULT
17
UNDERLOAD
18
THERM FAIL
19
OPEX LINK
20
OPEX PWR
352
recommended corrective action
Motor or process stall. Motor is operating in
the stall region. Check for and correct:
• excessive load
• insufficient motor power
• parameters 3010...3012.
Not used.
1 Digital input defined to report the first
external fault is active. See parameter 3003
EXTERNAL FAULT
2 Digital input defined to report the second
external fault is active. See parameter 3004
EXTERNAL FAULT
The load on the input power system is out of
balance.
• Check for/correct faults in the motor or
motor cable.
• Verify that motor cable does not exceed
max. specified length.
Motor load is lower than expected. Check for
and correct:
• disconnected load
• parameters 3013
3015
UNDERLOAD CURVE
Internal fault. The thermistor measuring the
internal temperature of the drive is open or
shorted. Contact your local ABB
representative.
Internal fault. A communication-related
problem has been detected between the
control and main circuit boards. Contact your
local ABB representative.
Internal fault. Low voltage condition detected
on the main circuit board. Contact your local
ABB representative.
ACH550 User's Manual
Description and
1.
2.
UNDERLOAD FUNCTION
.
Diagnostics and maintenance
...