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15: Troubleshooting
L1 Controller Error Messages
232
Table 15-2 lists error messages that the L1 controller generates and displays on the L1
display. This display is located on the front of all bricks (except the TP900 and D-brick2
storage modules).
Note: In Table 15-2, a voltage warning occurs when a supplied level of voltage is below
or above the nominal (normal) voltage by 10 percent. A voltage fault occurs when a
supplied level is below or above the nominal voltage by 20 percent.
L1 Controller Messages
Table 15-2
L1 System Controller Message
Internal voltage messages:
ATTN: <power VRM description> high fault limit
reached @ x.xxV
ATTN: <power VRM description> low fault limit
reached @ x.xxV
ATTN: <power VRM description> high warning
limit reached @ x.xxV
ATTN: <power VRM description> low warning
limit reached @ x.xxV
ATTN: <power VRM description> level stabilized
@ x.xxV
Fan messages:
ATTN: FAN <fan description> fault limit
reached @ xx RPM
ATTN: FAN <fan description> warning limit
reached @ xx RPM
Message Meaning and Action Needed
30-second power-off sequence for the brick.
30-second power-off sequence for the brick.
A higher than nominal voltage condition is
detected.
A lower than nominal voltage condition is
detected.
A monitored voltage level has returned to
within acceptable limits.
A fan has failed to spin at its minimum RPM
level even after an attempt by the L1 to increase
its RPM. Check to see if a fan has failed and
replace failed fan. Note: If the ambient air
temperature exceeds the bricks warning limit,
the brick will be shut down.
A fan has failed to spin at its minimum RPM.
The L1 has increased the RPM speed of all fans
in the brick to compensate. Replace the faulty
fan.
007-4653-001
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Table of Contents
Troubleshooting
