DescriptionName
The status indicator LED can be used to identify the
following status during startup/power on:
• Red, steady: Default when power is available.
• Red, flashing (~1Hz): Power is on, self-test is
ongoing, operating system is loading.
• Green, flashing (~1Hz): Application is loaded
and waiting for communication.
• Green, steady: Unit is operational.
If the LED does not turn steady green after 30-60 sec,
the status indicator LED can be used to identify the
following issues:
• No color: Power to the power unit is missing.
• Red, steady: Internal error.
• Red, flashing (~1Hz): Firmware error or self-test
failure.
• Green, flashing (~1Hz): Communication error
to another module.
• Green, steady: Unit is operational.
Module Status
Required test equipment
Equipment needed for troubleshooting:
NoteEquipment
Multimeter
Insulating gloves
3HAC082020-008Circuit diagram - OmniCore V400XT
Preparations
Action
Check the FlexPendant for errors and warnings.1
Power the controller off. Wait one minute, power the controller on.2
Wait 30-60 seconds after power-on.3
Make sure that the control system power is in run-time mode.
Continues on next page
390 Product manual - OmniCore V400XT
3HAC081697-001 Revision: A
© Copyright 2022-2023 ABB. All rights reserved.
7 Troubleshooting
7.3.6 Troubleshooting the HVLP power unit (DSQC3072)
Continued
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