Vertex Standard 7122B, 7133B 3.0 OPERATION

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3.0 OPERATION

The front panel controls of the 7122B/7133B ACU are shown in the following table.

7122B/7133B ACU CONTROLS AND INDICATORS

CONTROL OR INDICATOR FUNCTION

POWER ON/OFF Switch Provides power for the ACU.

AZIMUTH, POLARIZATION, and

ELEVATION Indicator

7-segment displays indicate the azimuth,

polarization, and elevation angle of the antenna.

LIMITS AZ CW/CCW, POL CW/CCW,

and EL UP/EL DOWN Indicators

LEDs illuminate if the respective limit switch is

activated.

EMERGENCY Indicator LED illuminates if the Emergency Stop Switch is

activated.

AZ CW/CCW Switch Momentary switch provides jog control of the

antenna azimuth drive motor.

POL CW/CCW Switch Momentary switch provides jog control of the

polarization drive motor (feed tube rotation).

EL UP/DOWN Switch Momentary switch provides jog control of the

antenna elevation drive motor.

The 7122B/7133B OU is a self-contained motor drive unit that can operate the

antenna drive motor without using the 7122B/7133B ACU. However, the

7122B/7133B OU has no display to show the antenna position.