SignificanceDescription
Shows the status of Ethernet communication between the drive unit and
the power unit.
Ethernet LEDs
Green:
• Off: 10 Mbps data rate is selected.
• On: 100 Mbps data rate is selected.
Yellow:
• Flashing: The two units are communicating on the Ethernet channel.
• Steady: A LAN link is established.
• Off: A LAN link is not established.
The status indicator LED can be used to identify the following status
during startup/power on:
1 Red, steady: Default when power is available.
2 Red, flashing: Power is on, self-test is ongoing, operating system
is loading.
3 Green, flashing: Application is loaded and waiting for communica-
tion.
4 Green, steady: Drive 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 drive unit is missing.
• Red, steady: Internal error.
• Red, flashing: Firmware error or self-test failure.
• Green, flashing: Communication error to another module.
Drive unit status
LED
Product manual - OmniCore C90XT 381
3HAC073706-001 Revision: D
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7 Troubleshooting
7.3.3 Troubleshooting the drive unit
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