All Leds Are Off At Controller - ABB IRC5 Operating Manual

3 Troubleshooting by fault symptoms

3.4 All LEDs are off at controller

3.4 All LEDs are off at controller
Description
No LEDs at all are lit in the controller.
Consequences
The system cannot be operated or started at all.
Possible causes
The symptom can be caused by (the causes are listed in order of probability):
en1000000051
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• The system is not supplied with power.
• The main transformer is not connected for the correct mains voltage.
• Circuit breaker F6 (if used) is malfunctioning or open for any other reason.
• Contactor K41 is malfunctioning or open for any other reason.
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Operating manual - Troubleshooting IRC5
3HAC020738-001 Revision: AA