101501-695 REV B
18
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4.5.11 Request Faults
Description:
The host requests that the firmware report the fault status. One code is
returned. The fault that is returned is based on priority if more than one
fault is set. The order is shutdown faults, then arc fault, under current,
and preventative maintenance. See Appendix A for fault cause and
effect.
Syntax:
<STX>FLT;<CSUM><CR><LF>
Response:
<STX><ARG>;<CSUM><CR><LF>
Where:
<ARG> 0 = No Fault
1 = Temperature
2 = Arc
3 = High Current
4 = Low Current
5 = Low Voltage
6 = High Voltage
7 = Watchdog
8 = Power
9 = Interlock
11 = Temperature Warning
43 = Preventative Maintenance. Issued if either there are
more than 15,000 hours of high voltage time on the X-
ray tube, or if four years have elapsed since the X-ray
tube was factory installed. This is a non-shutdown fault.
Example:
<STX>6;<CSUM><CR><LF> is a High Voltage fault.