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UXA Series Owners Manual
When the protection systems are reducing the level, this is indicated by illuminating the left-hand Amplifier
channel protection indicator. This will also illuminate when the output voltage is ‘clipping’.
This indicator will remain permanently illuminated if the channel has been muted by the protection systems.
The Mute button will also flash. This will usually also be indicated by a warning message on the display.
Some types of protection affect all output channels, so you may see the Amplifier indicator illuminated,
and the Mute button flash, on every channel.
Summary of Protection Indication
The reasons for the protection indicators illuminating are summarised as follows:
Amplifier Indicator
Driver Indicator
Notes
Limiter engaged
Amplifier clipping
Amplifier clip limiting
Amplifier Current limiting
Amplifier VHF limiting
PSU Current limiting
Will show on all output channels
PSU Power limiting
Will show on all output channels
Thermal limiting
Will show on all output channels
Incident Reporting
Fault Relay
Three connections are available via the Phoenix connector for this relay. The schematic representation printed
on the rear panel shows the ‘idle’ state of the relay (when the amplifier is not switched on). When the amplifier is
switched on, the relay will normally energise. When a Fault incident occurs, the relay will be de-energised. This
will allow either a Fault Incident or a loss of power to be seen as a ‘Fault’.
Summary of Contents for UXA4406 series
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