Freestanding; Power Wiring; Control Wiring; Fluorescent Wiring - Leviton DMX-512 Installation And Operating Manual

Leviton MDS Dimmer Cabinets with Luma-Net Control

Freestanding

Freestanding floor units are 90 inches tall by 20 inches deep overall, with the
width determined by the number of cabinet sections necessary to suit a particular
job requirement. Generally both freestanding and flush-mounted cabinets are
designed for side or bottom feed. Top feed cabinets are available on request.

Power Wiring

The cabinet includes:
• Main lugs for phases A, B, and C (or A and B in the case of a single-phase
cabinet)
• A load terminal block to land all the dimmer output load wiring. Where a single
dimmer feeds multiple load circuits output load wiring lands on the associated
branch circuit breaker terminals.
• A multi-terminal neutral block
• A single ground terminal
An optional multiple-terminal ground bus is available; call the factory and ask for
part number HDW-32096-00. The main lugs are sized for every dimmer to be
loaded to maximum capacity. You may elect to size the feed to the actual
connected load on the cabinet.

Control Wiring

Typically the left portion of the dimmer cabinet is reserved for control wiring.
Refer to the installation diagrams that are shipped with the dimmer cabinet.
Terminate all control wiring to the terminal blocks provided. Use a small 1/8-in.
flat screwdriver on these terminals.

Fluorescent Wiring

Some fluorescent dimmer ballasts use three power wires; a neutral, a switched
hot, and a line voltage control wire.
Some fluorescent dimmer ballasts require only two power wires; one hot circuit
wire that is both dimmed and switched, and one neutral wire.
Some dimmer ballasts require line and neutral plus two low voltage control wires.
Make sure the dimmer ballasts on this project are correctly wired prior to turn on.
Incorrect wiring of these ballasts to dimmers can damage the ballasts.

Turn On

Prior to turn on, verify the following:
• Main feed wiring
• Load wiring
• Remote control wiring
• Configuration of each module with the type of load connected and any ballast
control wiring
Installation and Operating Guide
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