AE Techron 7548, Руководство оператора

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Information subject to change
97-7796264_09-04-2020
7548/7794/7796/7796HC OPERATOR’S MANUAL – SECTION 3
16
playing the Fault status. Refer to the chart below to
determine the fault condition being indicated and
Figure 3.6 – Fault Status Indicators for Multi-Amplifier Systems
Indicator is lit Indicator is not lit Indicator may be lit
One or More Amps in System Main Status
Indicators of
Other Amps
in System State of Operation
Action Needed to Clear
Fault Condition and Re-
turn to Run Mode
Main Status
Indicators
Fault Status
Reported on
LCD Display
Run
Ready
Standby
Stop
WARNING!
OUTPUT DE
-
VICE FAULT
Run
Ready
Standby
Stop
Output Device Fault sta-
tus: This indicates that an Out -
put Fault condition has occurred
in the amplifier displaying the
Fault status, and the system has
been placed in Standby mode.
The Fault indicator will light
under two conditions: 1) High-
frequency oscillation is causing
high shoot-through current; or 2)
An output transistor has shorted,
causing the output fault condi -
tion.
This fault condition cannot be
cleared using the front-panel
Reset button. See the
Trouble-
shooting
section for more
information on diagnosing and
clearing this fault condition.
Run
Ready
Standby
Stop
WARNING!
OVERLOAD
Run
Ready
Standby
Stop
Overload status: This
indicates that the output of the
system could not follow the input
signal due to voltage or current
limits. Under normal operation
with the factory-default settings,
an Overload condition will not
place the system in Standby
mode. If the system has been
configured to be forced to Stand -
by on Overload, the system
will be placed in Standby mode
when the Fault indicator lights.
To remedy the Overload fault
during operation, turn down the
level of the input signal until
the Overload indicator turns
off. To clear an Overload fault
condition when the amplifier is
forced to Standby, turn down
the level of the input signal,
then push the Reset button on
the amplifier(s) displaying the
Overload status.
Run
Ready
Standby
Stop
WARNING!
OVERTEMP
Run
Ready
Standby
Stop
Overtemp status: Each am-
plifier in the system monitors the
temperature inside the high-volt -
age transformers, low-voltage
transformer and in the output
stage heat sinks. The Overtemp
indicator will light and the system
will be placed in Standby mode
when the temperature sensors
detect a condition that would
damage the amplifier system. If
the Overtemp pulse is extremely
short, as in the case of defective
wiring or switches, the Fault LED
may be lit too briefly to observe.
To reset after an Overtemp
fault has occurred, make sure
the amplifier fans in all ampli -
fiers are running, and then
remove the input signal from
the system. Allow the fans to
run for about 5 minutes until the
system automatically returns
to Run mode. Please see the
Troubleshooting section for
information on correcting the
cause of an Overtemp fault
condition.
the action required to clear the fault condition and
return the system to Run mode.