Information subject to change
97-8004167 07-14-17
7224 & 7226 OPERATOR’S MANUAL –
SECTION 6
32
on how to clear fault conditions and restore ampli-
fier operation.
If the amplifier reporting the fault condition has
been configured for startup in Stop mode, pressing
the Reset button will place the amplifier in Stand
-
by/Stop mode. Press the Enable button to return
the amplifier system to Run mode.
Main Status Indicators for Multi-amplifier
Systems
The Main Status indicators on each amplifier in
a multi-amp system are used to determine the
operational status of the amplifier. When evaluated
along with the statuses of other amplifiers in the
system, the Main Status indicators can be used
to determine the system status and the action
required to return the system to Run mode. See
Figure 6.15
.
Fault Status Indicators for Multi-Amp
Systems
The four Fault Status indicators located on each
amplifier’s front panel are used to monitor the
internal conditions of the amplifier and will illumi
-
Figure 6.15 – Main Status Indicators for Multi-Amplifier Systems
Indicator is lit
Indicator is not lit
Indicator may be lit
Main Status
of One or
More Amps in
the System
Main Status of
Other Amps in
the System
State of Operation
Action Needed to Return to
Run Mode
Run
Ready
Standby
Stop
Run
Ready
Standby
Stop
Run mode:
All of the amplifiers in the
system are in Run mode. The amplifiers’
high-voltage transformers are energized
and the system will amplify the input
signal.
N/A
Run
Ready
Standby
Stop
Run
Ready
Standby
Stop
Remote Standby Condition:
All of
the amplifiers in the system are being
held in Standby mode by an external
condition. In Remote Standby mode, the
amplifiers’ low-voltage transformers are
energized but the high-voltage trans
-
formers are not.
If the amplifiers remain in Remote
Standby mode, the system is being
held in Standby by remote control
through the SIM Interlock I/O connec
-
tor. Open the Enable/Standby switch
to clear this remote Standby condition
and return the system to Run mode.
See the
“Applications”
section of this
manual for more information on remote
amplifier operation.
Run
Ready
Standby
Stop
Run
Ready
Standby
Stop
System Not Ready:
If one or more
of the amplifiers has no LEDs lit, the
amplifier has no power or has not been
turned on, and the other amplifiers in the
system will be held in Standby mode.
In Standby mode, the amplifier’s low-
voltage transformer is energized but the
high-voltage transformers are not.
Make sure all amplifiers have AC
power and have been turned on. When
all amplifiers attain Standby status, all
amplifiers in the system will simultane
-
ously be placed in Run mode.
Run
Ready
Standby
Stop
Run
Ready
Standby
Stop
Stop mode:
When the Stop button on
any amplifier in the system is pressed,
that amplifier will enter Stop mode and
all other amplifiers will enter Remote
Standby mode. The system may also
enter Stop mode after powering up if
one or more amplifiers in the system
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 system from Stop mode,
press the Enable button on the ampli-
fier displaying the Stop mode status.
