Blizzard Enclosure User Manual
page 18
device’s DMX PERSONALITY. The DEC3.2 mode or personality may be configured form the Front
Panel or by using an RDM control. In all configurations, the fixture inside the Tempest enclosure
may also be an RDM enabled device.
Basic Mode
This is the way your DEC3.2 controller will normally ship from the factory. It will
be set up for standalone operation, with settings that will be appropriate for most
installations.
In most cases, Basic Mode will work fine for you. You only need to change it if you
will be using DMX or RDM (and if these terms are not familiar to you, you
probably won’t) or if you have to deal with extreme climate conditions.
You may set temperature and other parameters while using Basic Mode.
Monitor Mode
The enclosure operates independently, and automatically, requiring no user
intervention. Users may set parameters such as temperature and humidity
thresholds, and monitor sensor information and DEC status at the DEC3.2 using
the display, or remotely, using RDM over a DMX512 network. In this mode, the
DEC3.2 does not need to “see” any DMX to operate.
Control Mode
This mode has all of the Monitor Mode features plus control of the Lamp Relay
using a single DMX slot at the address configured as the DEC3.2 DMX start
address.
A DMX slot value (level) > 75% will cause the fixture to be powered and less than
25% will disconnect the power form the fixture. On DMX fail, the Lamp Relay will
default to power the fixture, unless it detects a thermal condition that would
cause it to isolate power from the fixture/projector.
DMX control of the Lamp Relay has the useful attribute of enabling the user to
remotely force a hard reset of the fixture by controlling power to it. This mode is
recommended for show-control applications, where it is desirable to have power
control of the internal fixture and accidental loss of the DMX data is very unlikely
to occur.
To force a hard fixture reset, take the enclosure’s DMX channel to zero (or any
level below 25%), allow time for the fixture’s power supplies to fully discharge,
then restore the enclosure’s DMX channel to full (or a level above 75%).
Service Mode
This mode is intended for test and service use only, giving the user direct control
of the Lamp Relay, fan and heater controls over three DMX slots. Users may NOT
override any of the controls in an unsafe direction – for example, if the DEC3.2
has determined the enclosure is over-temperature and has switched off the power
to the fixture, the Lamp Relay may not be controlled by DMX. In this sense, DMX
