MNC-0400-001
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REV H
Operation, Rack and Digital HPAs
The front panel 10-key pad and three of the softkeys of the
Set
Max Reflected Power Menu
are active. The front panel 10-key
pad is used to enter the desired maximum reflected power level.
The
Set Max Reflected Power Menu
softkey functions are:
[Softkey 1]—
Cycles one step each time the softkey is pressed.
The step sequence is:
OFF ALARM FAULT OFF etc.
These three states are:
OFF —
Disables the reflected power detection circuit
alarm and faults,
ALARM
— Enables the minimum power detection circuit
alarm. The display will show the Alarm and the buzzer
will sound but High Voltage will NOT be shut off.
FAULT
— Enables the minimum power fault detection
circuit. The display will show Fault; the buzzer will sound
and the High Voltage will shut off.
[Softkey 2]—
Not Used. Numeric value shown on the line to the
left of this softkey is the current minimum power level setting.
[Softkey 3]—
Not Used. (Value you enter for the new value is
displayed to the left of this key.)
Entries are in the units shown on the second line.
Press [Clear] to clear your entry. Press [Enter] to accept your
entry.
[Softkey 4]—
Pressed to return to the
Alarms/Faults Menu
.
Figure 10, Alarms/Faults Setup Submenus
Test Menu
This menu allows you to test four amplifier functions. Refer
to Figure 8 on page 20. All softkeys are active as follows:
[Softkey 1]—
Pressed to test the front panel LEDs.
[Softkey 2]—
Pressed to test the audio alarm
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