15
0120037-J0 Rev. C
6.8 Troubleshooting Converter Status LEDs
6.8.1 Card Alarms (All 4 LEDs)
LED State
Individual Converter status
Action
Green
Normal operation (Vout > 90%)
None
Yellow
Recoverable:
• Ambient temperature high
Resets automatically when ambient temperature reduces to
approximately 85°C or below.
Blinking yellow
• Input qualify not OK
Output is disabled if input voltage is not within the range of
40-60Vdc.
OFF
Recoverable
• No power
Check input wiring
Non-recoverable:
• Main input fuse cut-off
Potential component failure. Replace with new module.
6.8.2 Individual Channel Alarms
LED State
Individual Converter Status
Action
Green
Normal
None
Blinking Yellow
Recoverable:
• OCP/Overload
Ensure the load is within the rated current.
Recoverable:
• Vout low
Check that output is within the regular range.
Non-recoverable:
• Converter Input Fuse fail
Potential component failure. Replace with new module.
Red
Recoverable:
• OVP
OVP will cause the output to restart every 2 seconds, until the
fault is removed. If the fault persists for 60 seconds, the output
will shut down for 60 seconds and then attempt to restart
every 60 seconds until the fault is cleared.
Non-recoverable:
• Converter Output Fuse fail
Failed fuses are not field replaceable. Replace with new
module.
Blinking Red
Recoverable:
• GFI
The converter attempts to restart every 2 seconds until the
fault is removed. If the fault persists for 60 seconds, the output
will shut down for 30 seconds and attempt to restart every 30
seconds until the fault is cleared.
