constant power to the load. Regulation shall maintain the desired output voltage ±1V
for the entire operating range (90-240V AC) with the exception that the maximum
output will be no greater than the line voltage minus dimmer insulation loss. The
regulation shall compensate for dips and anomalies in the AC waveform on a
dimmer-by-dimmer basis. There shall be no interaction between dimmers in the system
or any other equipment. The output shall be nominally regulated to 120V, but shall be
field adjustable on a dimmer-by-dimmer basis to allow for varying cable length.
(3) The control module shall support a rack filled with different types and sizes of dimmer
modules. The properties of each dimmer shall be configurable, including dimmer
name, output curve, dimmer firing mode, and scale voltage values.
(4) The output curve selections shall include IES Modified Square, Square, Linear,
Modified Linear and a Sensor v2.0 output curve. The control module shall also have
the capability of storing up to three custom curves as well as an adjustable preheat
level, assignable on a per-dimmer basis.
(5) The dimmer firing modes shall include: Normal (Dimmed), Dimmer Doubled, Switched
(unregulated on/off with adjustable on-at level), Fluorescent with adjustable threshold,
and Off.
(6) Dimmers set as Dimmer Doubled shall allow a single dimmer to set two different levels
on one dimmer circuit by splitting the AC power into positive and negative half cycles
with no resultant DC line current.
(7) The control module shall contain diagnostic routines to allow the user to test and
troubleshoot the system. The control module shall also contain a Test/Bypass switch to
turn all dimmers on to full for testing. This switch shall bypass all electronics and shall
force the fan on.
(8) The control module shall be able to record up to 128 presets group-wide. Presets shall
be user programmable by recording a snapshot of current dimmer levels (as set by the
all control sources), by entering dimmer levels on the control module directly, or a
combination of both methods. The system shall have the ability to program and
activate group-wide presets from either the control module, a console or a networked
computer or handheld device. Presets shall be activated in the default fade time of 2
seconds, but shall be have a user-programmable fade time between 0 and 60 minutes.
(9) In the event of data loss each rack shall maintain the last level for a
user-programmable time of zero to five minutes or indefinitely, or may be programmed
to fade out or to play a specific preset. Systems that do not offer this feature shall not
be acceptable.
(10) A system-wide panic circuit shall be provided. Any dimmer in any rack may be
assigned to the panic circuit. The panic may be set as momentary or maintained,
normally open or closed, and shall have an option to force all non-panic dimmers to
zero.
(11) DMX A and B as well as the Ethernet DMX (EDMX) data may be patched using a rack
start address - assigned sequentially from a starting control channel or patched
individually on a per-dimmer basis. Priority may be set per universe for the DMX
inputs, and set per channel by the control source for the EDMX input. Each dimmer
may have up to six network control inputs with either a highest takes precedence or
priority patch. Each dimmer may also then be assigned to one of 4 rooms for additional
specific preset control.
(12) The control module shall provide the ability to set a dimmer, all dimmers or a range of
dimmers to a level.
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