Back-Panel Controls And Connectors - AE Techron 7800 Series Operation Manual

Figure 3.6 – Fault Status Indicators for Multi-Amplifier Systems (continued)
One or More Amps in System Main Status
Fault Status
Main Status Reported on
Indicators LCD Display
Run
WARNING!
Ready
OVERVOLTAGE
Standby
Stop
Fault Status Indicator
The Fault Status indicator is located on the ampli-
fier module's front panel. This LED monitors the
internal conditions of the module and will illuminate
when a fault condition occurs. Depending on the
fault condition, the 7800 system may be placed in
Standby mode when a fault condition occurs. Re-
fer to the chart in Figure 3.5 to determine the fault
condition being indicated and the action required
to clear the fault condition.
In systems with multiple amplifier modules, the
Fault Status indicators on each module are used
to determine the operational status of that module.
When a fault condition occurs on any module in
18
Indicators of
Other Amps
in System State of Operation
Overvoltage status: This
indicates that the AC mains voltage
is more than +10% of nominal.
All amplifiers in the system will be
Run
forced to Standby when an Over-
Ready
voltage condition occurs. When the
Standby
Overvoltage condition is cleared,
Stop
the system will automatically return
to Run mode.
Figure 3.7 – Back Panel Controls and Connectors
Information subject to change
7800 SERIES OPERATION – SECTION 3
the system, the system may be placed in Standby
mode. Typically, the system can be released from
Standby mode by pressing the Reset button on the
amplifier module displaying the Fault status. Refer
to the chart in Figure 3.6 to determine the fault
condition being indicated and the action required
to clear the fault condition and return the system to
a running condition.
3.3 Back-Panel Controls
and Connectors
This section provides an overview of Back-Panel
controls and connectors found on the 7800 series
amplifier modules. Please refer to Figure 3.7 for
visual locations.
Action Needed to Clear
Fault Condition and Re-
turn to Run Mode
To clear an Overvoltage
fault condition, the AC mains
must be brought down to the
nominal value. If the sys-
tem does not return to Run
mode when the Overvoltage
condition has cleared, one or
more amplifiers may require
servicing. Please see the
Troubleshooting section for
more information.
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