NEBULA OPERATION 9
LEVELS DISPLAY
The LCD screen may be set to read out a number of operating conditions.
Input DMX levels
The LCD screen displays the latest input DMX levels before modification by any Test, Minimum or Maximum settings etc.
Final Dimmer levels
The LCD screen displays the final control level applied to the chosen dimmer curve for each dimmer. This level shows the
level modified by the following settings: Test, Min, Max, Non-Dim, Off, Proportional, and softstart.
Temperature history
The LCD screen displays the following six readouts taken from a sensor in the exit air flow: the current temperature, the
temperature 30 minutes ago, one hour ago, and two hours ago, the maximum temperature reached over the previous two
hours, and the average temperature over the previous two hours. The timing is started from initial power on. Temperatures are
in degrees Centigrade.
Voltage and Frequency
The LCD screen displays the RMS voltage on Phases A, B, and C, and the frequency in Hertz of each phase. Voltages are
shown to the nearest volt, and frequency to the nearest 0.1 Hz. Each phase voltage may be individually calibrated against a
known accurate RMS voltmeter. Calibration levels are held in Flash memory, and not affected by any reset command.
Fan Status
When set to this mode the LCD screen displays the Cooling Fan level This display also has a fan test-at-full function, and
also shows the current temperature in degrees Centigrade.
Scenes Playback levels
When set to this mode the LCD screen displays the playback levels from Scene, Chases and Shows.
Fan Status
When set to this mode the LCD screen displays the latest commands over the Remote RS-485 line. The first 21 values are
displayed in hexadecimal format. This display is of use in setting up wallplates and installing remote computer control of
Nebula dimmers.
RESETTING NEBULA DEFAULT PARAMETERS
All Nebula parameters may be reset to default values. These default values are described in the next section.
Summary of Contents for NEBULA
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