KA BAND OUTDOOR TWT AMPLIFIER
During a Fault event
High Voltage is off. Heater Reduce is on after one minute of Fault state. RF Inhibit is on.
Since all faults are ignored during Fault, a hard fault (such as a stuck Interlocks Open) will be seen
three times as the unit cycles between Fault and another operational state. This guarantees that a
hard fault will ultimately latch the unit into Fault. If a recycle decision is made, the unit remains in
the Fault state for, an additional 0.5 second before cycling back to the original state.
If the unit enters Fault from HTD, the HTD countdown will continue.
While the unit is in the Fault state, the Fault LED flashes. Once the unit leaves the Fault state, the
Fault LED is OFF.
If the unit is latched into the Fault state, the Fault LED flashes. To exit the latched Fault state, the
user must clear the fault cause, then toggle the RESET switch. The amplifier returns to Standby.
5.6.7.2 Meter log
A meter log is available to the user via either the remote panel or the CPI supplied remote
software. Refer to either chapter 3 (Figure 3-5) or to Appendix B for more information on how to
access the log.
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OC
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