Three More Module Configurations; Dnd20/126-1; Xdnd20/126-1; F20-120U/136-1 - Leviton DMX-512 Installation And Operating Manual

Leviton MDS Dimmer Cabinets with Luma-Net Control

Three More Module Configurations

DND20/126-1

This is a non-dim module used where there is a requirement to provide a 20-amp
circuit from the dimmer cabinet to a load that is never dimmed. This module fits
into one of the dimmer slots containing two 20-amp contactors used to turn on
and off their connected loads.

XDND20/126-1

This is also a non-dim contactor only module. It operates exactly like the unit
above except the contactor is a normally closed type. This unit is used in an
emergency section of a dimmer cabinet. When the normal power to this unit fails
the contactors fall closed, causing the emergency lights to come on to full
brightness and remain so until normal power returns to the dimmer cabinet.

F20-120U/136-1

This is a "Universal" fluorescent dimmer for solid state high-frequency ballasts. It
is designed to operate the fluorescent dimmers using two low-voltage control
wires and 0 VDC to +10 VDC control. It will also operate the line voltage dimming
type dimmer ballast like the Advance Mark X ballasts. It is also designed to dim a
series of dimmer ballasts called HiLume and EcoDim made by the Lutron company
that control differently than other dimmer ballasts on the market. The F20-120U/
136-1 dimmer module can drive these ballasts. It has two output terminals. One
provides the 120 V line voltage and is switched On or Off. The other output
terminal provides a symmetrical phase-controlled dimmer output with a low end
limit as required to drive these ballasts to different light outputs. The F20-277U/
136-1 is also available, which is the same dimmer designed to operate 277 VAC
ballasts of the same types named above.
Checking the Module Programming in a Dimmer
Cabinet
To determine how the modules are programmed in the dimmer cabinet, check the
module programming:
Make sure the unit is turned on and in normal operation.
1
Press the UP
2
The LCD display shows MENU SETUP, with MENU flashing.
Press the UP
3
The LCD display shows MENU MODULE STATUS.
Press the SELECT button.
4
The LCD display shows how the first half of the first dual dimmer is
programmed.
Installation and Operating Guide
button located under the LCD display.
button a second time.
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