Teledyne 6 RU Chassis, Руководство по эксплуатации

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46 202058 REV AA 6 RU SSPA Chassis Operations Manual
2.3.4.3 RF Switch Faults
Determines whether a switch fault should cause a major alarm and attempt to switch,
or simply show an alert on the front panel, the latter case considered a minor alarm.
•
1.Fault
— This is the Major Alarm mode. Summary alarm on fault;
•
2.Alert
— This is the Minor Alarm mode. No summary alarm on fault;
•
3.Switch Mute
— In this mode, when the switch position changes, the
amplifier is momentarily muted during switchover to prevent arcing in the
waveguide;
•
4.Ignore
— This setting ignores any RF Switch faults.
2.3.4.4 Fault Latch
Determines the alarm reporting condition. A latched alarm will remain indicated on the
front panel until the operator clears the alarm by pressing the
Enter
key. Unlatched
alarms will allow the summary alarm indicator to stop displaying the alarm condition if
the circumstance creating the alarm has been cleared or corrected.
2.3.4.5 Forward RF / Automatic Level Control
This menu allows the operator to choose whether to enable or disable a Forward RF
Fault Alarm, or to set Automatic Level Control.
2.3.4.5.1 Disable
This selection disables the Forward RF Fault Alarm function, as well as the Automatic
Level Control function. Selecting this item also unlatches any Forward RF fault condi-
tions.
2.3.4.5.2 Low RF
When this menu item is selected, an alarm is triggered when the RF output power falls
below a threshold value, which is adjustable by the operator (see
Section 2.3.4.5.5
).
The operator may set the fault handling to trigger either a Major Fault (Fault) or Minor
Fault (Alarm).
•
1.Fault
— When selected, a Major Fault condition (Summary Alarm) is
triggered when RF output power falls below the set threshold value;
•
2.Alarm
— When selected, a Minor Fault condition is triggered when RF
output power falls below the set threshold value;
•
3.Back
— This selection displays the menu listed in
Section 2.3.4.5
,