AR 10052381, Operating And Service Manual

Page: 34 / 60

Model 125W1000A
12 Rev A
2.4.9 Fault Screen
The Fault screen will appear anytime that a fault condition is met. The name of the fault is shown toward the
center of the screen. With the Local/Remote switch set to either LOCAL or REMOTE positions, a Reset button
will appear allowing local resetting of the fault condition. Faults can also be reset remotely. If the fault reset
is successful, the screen will return to the Main Menu or Remote screen depending on the Keylock switch
position.
2.5 CONTROL STATES
This section defines the various control software states required for this amplifier. An example of typical
control states is shown below. In the subsections below, define any special responsibilities of the control
system.
One example would be to state that when transitioning from the RF ON state to the POWER OFF state, care
must be taken to remove the bias voltage from the power modules before disabling the main power supplies.
Below is a state diagram for the Power and RF states of the amplifier. This diagram should be used to
understand the major states that the amplifier can be in.
Power Off
RF Off
Power On
Power On
RF Off
Power On
RF On
RF On
Power Off RF Off
Power Off