97-7796264_09-04-2020
Information subject to change
13
7548/7794/7796/7796HC OPERATOR’S MANUAL – SECTION 3
3.1.2 Multi-Function LCD Display
The multi-function LCD display provides vari
-
ous displays of peak and RMS values for voltage
and current measured directly from the amplifier
output. The amplifier’s model name is displayed on
the model display screen in the display rotation.
If the amplifier experiences a fault condition, the
LCD display will automatically change to display
details of the fault condition and prescribed correc-
tive actions.
On startup, the LCD Display will provide readings
for all four measurements: Volts peak, Volts RMS,
Current peak, and Current RMS. Use the Naviga
-
tion buttons to scoll to other available displays,
such as model name, peak voltage and peak
current display, RMS voltage and RMS current
display, or other combinations.
3.1.3 Navigation Buttons
The Navigation buttons provide four arrow keys to
allow navigation through the different displays on
the LCD display screen.
Figure 3.2 – Front Panel Indicators
NOTE: The Enter button has been provided for
future expansion and has no function at this time.
3.2 Front-Panel Indicators
This section provides an overview of Front-Panel indi-
cators found on the 7548/7794/7796/7796HC ampli
-
fier. Please refer to
Figure 3.2
for item locations.
3.2.1 Main Status Indicators
Four Main Status indicators are located on the
amplifier’s front-panel. These LEDs monitor the
internal conditions of the amplifier and indicate
the current state of operation. The chart in
Figure
Figure 3.3 – Main Status Indicators for Stand-Alone Amplifiers
Indicator is lit
Indicator is not lit
Indicator may be lit
Main Status
Indicators
State of Operation
Action Needed to Return to Run
Mode
Run
Ready
Standby
Stop
Run mode:
The amplifier’s high-voltage transformers
are energized and the unit will amplify the input signal.
Run mode is initiated by: (1) the Enable push button, or
(2) when the amplifier powers up in Run mode (factory
default). See the “
Advanced Configuration”
section for
more information.
N/A
Run
Ready
Standby
Stop
Standby mode:
Standby mode indicates that the am-
plifier is functioning properly and all Fault Status modes
are clear, but it is being held in Standby by an external
condition. As configured from the factory (Run mode on
startup), the amplifier will enter Standby mode briefly
after powering up, and then will move automatically into
Run mode. In Standby mode, the amplifier’s low-voltage
transformer is energized but the high-voltage transformers
are not.
If the amplifier remains in Standby mode,
it is being held in Standby by remote con
-
trol through the SIM Interlock I/O connec
-
tor. Open the Enable/Standby switch to
clear this remote Standby condition and
return the amplifier to Run mode. See the
“Applications”
section of this manual
for more information on remote amplifier
operation.
Run
Ready
Standby
Stop
Stop mode:
When the Stop button on the amplifier front
panel is pressed, the amplifier will enter Stop mode. The
amplifier may also enter Stop mode after powering up if
the amplifier is configured to enter Stop mode on startup.
In Stop mode, the amplifier’s low-voltage transformer is
energized but the high-voltage transformers are not.
To release the amplifier from Stop mode,
press the Enable button.
Summary of Contents for 7548
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