ABB IRC5P, Product Manual, Page: 177 / 220

8 Trouble Shooting
Product Manual, Control Cabinet IRC5P 3HNA009834-001 en Rev.06 177
8.3 Fault Symptoms and Malfunctions
8.3.3 Start-Up Failures
Description
This section details possible faults at start-up, and specifies recommended actions
for each case.
Consequences
The system does not start, or starts incorrectly.
Symptoms and Causes
A number of symptoms are possible:
• No LED indicators are lit on the LED indicator panel and on any unit.
• The system software does not load properly.
• The pendant is ‘dead’.
• The pendant starts up, but does not respond to any input.
Recommended Actions,
No LED Indications
Step Action Comment
1 Make sure the main transformer is correctly
connected for the mains voltage levels at hand. How to connect the transformer is found
under
’Mains Power Connection’ on
page 115.
2 Make sure the mains switch is switched on.
3 Make sure the mains power supply to the
system is present and within specified limits. The installation documentation may
provide this as well as other vital
information.
4 Make sure that the supply voltages from the
PDB board are present and within the specified
limits. If required, trouble shoot PDB, described
in
’Trouble Shooting Power Supply, PDB’
on page 193, and associated systems.
For information, see ‘Power Distribution
Board, PDB’ in ‘Unit Description,
IRC5P’.
5 If the system seems to be totally ‘dead’. Proceed as described in section
’Controller Dead’ on page 178.
6 The pendant appears to be ‘dead’. Proceed as described in section
’Pendant Dead’ on page 180.
7 If the pendant starts, but does not seem to
communicate with the controller. Proceed as described in section
’Pendant does not Communicate’ on
page 181.
8 If you encounter problems trying to download
system software, please proceed to the
‘Operators Manual, IRC5P’.