Print Date 08/04/14 Page 29 of 34 S79005-00MA-05
SECTION THREE : OPERATION
Once installed and set up as described in Section Two, manual operation is limited to the two switches
on the E2026 Drive Changeover/Output Monitor Unit. Various forms of automatic control can be
provided using the E2023 Controller Unit. This unit also provides comprehensive monitoring of power,
current and temperature levels etc. as well as being the ‘gateway’ for various extended and remote
control and monitoring options.
3.1 CONTROLS AND DISPLAYS
The controls and displays available for each module or unit and their functions are as follows :
3.1.1 E2021 Amplifier Module
Marked Type Function
LOCK Opto Switch To mute/demute and mechanically retain the module.
Down position to demute and secure module.
Up position to mute and enable module’s removal.
FWD LED Display Red indicates forward power fail (module output power more than
approximately 6dB below that required).
Amber indicates forward power muted.
Green indicates normal operation.
REV LED Display Red indicates reverse power to module in excess of approximately
30W (i.e. 10dB return loss relative to maximum module output).
Green indicates normal operation
.
TEMP LED Display Red indicates module heatsink temperature greater than
approximately 85 deg.C.
Green indicates normal operation
CURRENT LED Display Red indicates module current (to Amplifier Pallet) in excess of
approximately 11A.
Green indicates normal operation.
CPU LED Display Red indicates module CPU (microcontroller) failure, other LED
displays will automatically be turned off.
Green indicates normal CPU operation.
3.1.2 E2088 Power Supply Unit
Marked Type Function
DC
LED Display
Green indicates that the supply output is above approximately 40V dc
DC
LED Display
Red indicates that the supply output is below approximately 40V dc
AC
LED Display
Green indicates that the input is above approximately 85V rms ac.
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