118165-001 REV. A
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ARG12 = Filament Open. The X-Ray tube filament is open circuit.
(Filament burned out or bad connection).
ARG13 = Filament Over current. The current through the filament
as measured by the filament feedback circuit has exceeded the
maximum allowed current for more than 20 msec.
ARG14 = AC/DC Fault. The line input voltage is low.
ARG15 = Under Time. If not in AEC mode his fault indicates that
the exposure was terminated by the removal of the Exposure
Control signal prior to the expiration of the programmed exposure
time. If AEC mode is active it indicates removal of the exposure
control signal with the AEC signal in the exposure ON state.
ARG16 =Safety interlock fault. An attempt was made to turn on the
X-Ray with the safety interlock open, or the safety interlock opened
during X-Ray On time.
ARG17 = Setup Fault. An attempt was made to turn X-Ray On with
an invalid setup (Arg14 of request status command = 1). The user
must clear the fault and correct the unit setup before an exposure
can be made. See the note after the example.
Example:
<STX><68>,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,<CSUM><ETX>
Note: Operation of the Invalid Setup Status and Fault flags.
This note is an attempt to clarify the operation of the Invalid Setup
Status Flag returned in the Request Status message and the Setup
Fault Flag returned in the Request Faults message. The Invalid
Setup flag does not indicate a fault. In fact it can be expected that
during the process of changing exposure settings using the
“Individual setting” commands (Such as “Set Exposure kV”) you
may temporarily have an illegal setup. When you have finished the
setup however, you should not have an invalid exposure indication.
If you do try turn on the X-Ray with an illegal setup, this does
generate a “Setup Fault”, and this fault must be cleared using the
“Reset Faults” command. The rational for this is that a fault
indicates that something in the exposure did not work as expected.
Since the host expected the X-Ray to go on when commanded, but
the X-Ray will not be allowed to turn on with an illegal setup this is
clearly not what the host expected to happen. The “Setup Fault” will
never happen provided the host does not try to turn the X-Ray on
with illegal exposure settings.