RESPONDING TO ALARMS VX150 TO VX2 TROUBLESHOOTING MANUAL
PAGE 3.1.16 VERSION 2.0 2023-04-20
Exciter +12V Failure The Exciter PWB +12V Meter measures less
than 6 V for a period of at least 5 seconds.
The Exciter PWB +12V Meter measures
greater than 6 V for at least 5 seconds.
The most likely failure is the connection
between the Exciter PWB and System
Interface PWB or a component failure on
the Exciter PWB or the System Interface
PWB.
Check the connection between the
Exciter PWB and System Interface PWB.
Measure the voltage at TP8 on the
Exciter PWB and TP12 on the System
Interface PWB.
Consider replacement of the Exciter PWB,
System Interface PWB, or the 12V Power
Supply. See
Exciter PWB Replacement
on page 3.1.37 or Power Supply
(+12 V) Replacement on
page 3.1.45.
Exciter Booted The Exciter firmware has loaded successfully
and started running.
This alarm is logged but not displayed as an
active alarm. Should appear in the logs every
time the AC power has been applied/restored
or after a software upgrade.
Cleared on a power cycle or a reboot/software
update.
This alarm should appear in the logs
every time the AC power has been
applied/restored or after a software
upgrade to indicate the Exciter firmware
has loaded successfully and started
running.
Alarm Name Trigger Conditions Clear Conditions Troubleshooting
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