97-8004167 07-14-17
Information subject to change
13
7224 & 7226 OPERATOR’S MANUAL –
SECTION 4
Figure 4.3 – Push Buttons
Enable, Stop and Reset Buttons
The following details the results when each of the
three Push Buttons are pressed on the amplifier
front panel. See
Figure 4.3
for Push Button loca-
tions.
Enable –
When the amplifier is in Standby/Stop
mode, pressing the Enable button will release the
amplifier from Standby and place the amplifier in
Run mode. Pressing the Enable button will also re
-
lease the amplifier from some Standby conditions.
Stop –
Pressing the Stop button will place the
amplifier in Standby/Stop mode (both Standby and
Stop LEDs will be lit).
Reset –
When the amplifier has been placed
in Standby/Fault mode due to a fault condition,
pressing the Reset button will return the amplifier
to Run mode if the condition causing the fault con
-
dition has been cleared and the amplifier has been
configured for startup in Run mode. If the ampli
-
Figure 4.4 – Indicators
fier has been configured for startup in Stop mode,
pressing the Reset button will place the amplifier
in Standby/Stop mode. Press the Enable button to
return the amplifier to Run mode.
Figure 4.5 – Main Status Indicators
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 trans
-
formers 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
Remote Standby mode:
Standby mode indi-
cates that the amplifier 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 ampli
-
fier will enter Remote Standby mode briefly after
powering up, and then will move automatically into
Run mode. In Remote Standby mode, the ampli-
fier’s low-voltage transformer is energized but the
high-voltage transformers are not.
If the amplifier remains in Remote Standby
mode, it 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
amplifier to Run mode. See the
“Applications”
section of this manual for more information on
remote amplifier operation.
Run
Ready
Standby
Stop
Standby/Stop mode:
When the Stop button on
the amplifier front panel is pressed, the amplifier
will enter Standby/Stop mode. The amplifier may
also enter Standby/Stop mode after powering up
if the amplifier is configured to enter Stop mode
on startup. In StandbyStop mode, the amplifier’s
low-voltage transformer is energized but the high-
voltage transformers are not.
To release the amplifier from Standby/Stop
mode, press the Enable button.
