Figure 3-11 Hvps Front Panel Leds When Subthreshold Arcing Is Occurring; Figure 3-12 Hvps Front Panel Leds When A Latched Output Arcing Fault Has Occurred - ferrotec Temescal CV-12SLX User Manual

3.7 Responding to Fault Conditions

Figure 3-11 HVPS Front Panel LEDs when Subthreshold Arcing is Occurring

If arcing surpasses either a frequency or a time-duration threshold, a latching OUTPUT
ARCING fault will occur. (These threshold values are detailed in Figure 5-6.) The OUTPUT
ARCING and POWER SUPPLY FAULT LEDs will then light red, while the HV OUT OF
REGULATION LED will turn green and the ART/OUT OF REGULATION LED will no longer
flash. In addition, the HV ON LED is extinguished, as the fault condition causes the HV to be
switched off. This latched-fault state is illustrated in Figure 3-12.

Figure 3-12 HVPS Front Panel LEDs when a Latched OUTPUT ARCING Fault Has Occurred

If the OUTPUT ARCING fault occurred solely because intermittent arcing passed one of the
threshold conditions, the HV should come back on as soon as the RESET and HV ON signals are
supplied. Out-of-regulation faults arising as a result of other conditions will likely require
troubleshooting. To address such cases, see Ishikawa Diagram #11 and Table 5-16.
CV-12SLX User Manual 3-12
Section 3: Power Supply Operation
0101-8292-0, Rev. C