AR 10012342, Operating And Service Manual

Page: 29 / 72

Model 500T8G18
Rev B
15
3.3 FRONT PANEL FEATURES
Refer to Figure 3-3 below.
1
6 7 9 8 12
5
11
10 3
4
2
Figure 3-3. Front Panel Features
Table 3-2. Front Panel Features
Item Title Function
1 MAIN POWER
Switchable 15 A. circuit breaker; connects primary power-to-power supplies (3-
phase shown). Single-phase model uses 30A circuit breaker.
2. OPERATE
Push-button; turns on high voltage and SSA when all faults and heater delay are
cleared.
3. STANDBY Push-button; shuts off SSA and turns off high voltage.
4. ADJUST Rotary knob used as an input device to change values of a variety of parameters.
5. EXIT
Push-button; terminates various menu selection routines and returns to the previous
menu level.
6-9. S1...S4 “Soft Key” push-buttons; various menu selection functions.
10. Display Displays numerous parameter values and fault messages.
11. Keylock Switch
Allows operator to inhibit the TWTA, to enable front panel control, or to enable
computer control.
12. Emergency switch cover
Provides access to emergency bypass switches, which permit manual control of the
amplifier.