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6 Troubleshooting
6.3.9 Troubleshooting the main computer
Continued
Description
Power status, PC
PWR (green)
Disk status, PC
HDD
Computer status,
PC STAT
(red/green)
Troubleshooting procedure
1
Continues on next page
548
Significance
The power status LED indicates the status of the power supply and the
main computer hardware and firmware.
Normal behavior:
•
Off: During a normal startup the LED is off, until the COM Express
module inside the computer unit is started.
•
On solid: After completion of startup the LED is steady on.
After start-up phase (30-60 seconds):
•
Off: Power input voltage is not in normal range.
Failure during startup (off between blinks). One to four short blinks, one
second off. This is repeated until power off.
•
Internal fail of power, FPGA, and/or the COM Express module.
•
Replace the computer unit.
Power failure during runtime (fast flashing between blinks). One to five
blinks, 20 fast flashing blinks. This is repeated until power off.
•
Temporary voltage drop, cycle the power to the controller.
•
Check the power supply voltage to the computer unit.
•
Replace the computer unit.
The disk status LED indicates access to the main computer persistent
memory.
Normal behavior:
•
No color at power on: R34 FPGA is loaded on the main board.
•
Yellow: Access (read/write) to internal mass memory.
The computer status LED indicates the startup progress of RobotWare
on the main computer.
Normal behavior:
1 Red, solid: Default when turning on the power.
2 Red, flashing: Initial self-test is ongoing and the operating system
is loading.
3 Green, even flashing (~1Hz): The operating system is loaded and
RobotWare is initializing.
4 Green, uneven flashing: The RobotWare system failed to load or
is not installed.
5 Green, solid: The computer is operational and the RobotWare
system is fully loaded.
If the LED does not turn steady green after approximately 5 minutes then
the LED can be used to identify the following issues:
•
No color: The internal power initialization failed. Restart the con-
troller. Replace the main computer if the problem remains.
•
Red, solid: Internal error. Restart the controller. Replace the main
computer if the problem remains.
•
Red, flashing continuously: Failed to load the operating system.
Restart the controller. See
Replace the main computer if the problem remains.
•
Green, even flashing continuously (~1Hz): Failure during start up.
Check error messages on FlexPendant. See
start on page
•
Green, uneven flashing: RobotWare Installation Utilities mode.
Action
If the LEDs do not turn steady after
approximately 5 minutes then re-
start the controller and check the
LEDs again.
© Copyright 2019-2022 ABB. All rights reserved.
Controller fails to start on page
523.
Note
See
LEDs on page
547.
Product manual - OmniCore C30
3HAC060860-001 Revision: P
523.
Controller fails to
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Table of Contents
Troubleshooting
