Troubleshooting Units; Troubleshooting Leds In The Controller - ABB OmniCore V250XT Type B Product Manual

7 Troubleshooting

7.3.1 Troubleshooting LEDs in the controller

7.3 Troubleshooting units

7.3.1 Troubleshooting LEDs in the controller
Description
The controller features a number of indication LEDs, which provide important
information for troubleshooting purposes. If no LEDs light up at all when switching
the system on, troubleshoot as detailed in this section.
All LEDs on the respective units, and their significance, are described in the
following sections.
Units with LEDs in the controller
Drive unit
Additional drive unit
Power unit
Scalable I/O
3G Connected Services gateway
4G Connected Services gateway
Ethernet switch
Main computer
Power supply
368
Troubleshooting the drive unit on page 370
Troubleshooting the additional drive unit on page 376
Troubleshooting the power unit on page 383
Troubleshooting fieldbuses and I/O on page 396
Troubleshooting the 3G Connected Services gateway
on page 397
Troubleshooting the 4G Connected Services gateway
on page 403
Troubleshooting the Ethernet switch (DSQC1035) on
page 414
Troubleshooting the main computer on page 416
Troubleshooting the power supply, ODVA on page 422
and Troubleshooting the process power supply on
page 421
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Product manual - OmniCore V250XT Type B
3HAC087112-001 Revision: A