Leprecon VX Dimmer - Manual (Page 3)

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1. General Description
The Leprecon VX Dimmer is designed to meet the demanding requirements of the lighting
industry. Emphasis was placed on designing a system that is flexible, reliable, and serviceable.
The latest digital technology, combined with a modular design, bring a new level of performance
and ease of use to portable and permanent dimming systems.
Because of the many custom features available on VX systems, the features described in this
manual may not cover all available options of the dimmer.
1.1. Standard Features:
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Modular Dimming & Control Electronics
Dimmer and control electronics can be serviced from the front panel, without removing the
dimmer from the rack or enclosure.
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DMX Control Input
Digital control electronics using a patented circuit allows simultaneous DMX-512 and analog
control input, with a highest-takes-precedence logic. Parallel input and output for DMX 512 allows
daisy-chaining racks together in one system. DMX start address switches allow the dimmers to be
assigned to start receiving data at any of the 512 addresses.
"True digital" control electronics provides accurate dimmer output tracking from channel to
channel, eliminating any variance in output levels when multiple dimmer channels are patched
together.
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Analog Control Input
Two 8 pin Jones type male plugs are provided for 0-10 DC analog control. Control cable and pin
connections are compatible with other Leprecon dimmers.
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Channel Breakers
The circuit breakers used in the VX dimmers are fast response magnetic breakers. The quality of
the breaker contributes to the reliable operation of the dimmer pack, even when shorted lamps or
cables are plugged into the dimmer.
The front panel toggle also allows the breaker to be used as a switch for the
dimmer channel.
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Fan Cooling
Two fans are used in the VX dimmer to keep the electronics at a safe operating temperature. The
fans are controlled by a thermostat to keep fan noise to a minimum. When the pack is lightly
loaded, the fans turn at a slower rate, and are accelerated to full speed when the temperature
inside the pack increases.
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Ten Scene Memory
Non-volatile memory in the VX control card retains 10 scenes for backup or use without controller.
Scenes program via front panel controls, and may be set individually at any time.