Legrand ezDALI Relay Module Installation guide

Brand: Legrand

Model: ezDALI Relay Module

Type: Installation guide

Legrand ezDALI Relay Module is a digital control device for non-DALI loads. It supports dual voltage operation (120/277 VAC), can handle up to 20 A of load, and draws only 7 mA from the DALI bus. The module is compatible with DALI ballast commands and features a zero-crossing circuitry that increases the relay's life by reducing inrush current. It is UL listed for plenum operation and may also be wired as a Class 2 device.

Installation Instructions

Inc.

DRM

ezDALI Relay Module

Installation and Setup

The Relay Module (DRM) is one component of an

ezDALI System. It provides isolated high-power

(20 A, 120/277 VAC) switching capability for non-

DALI ON/OFF loads. It is packaged in a standard

covered pull box (approximate dimensions are

4.8 x 4.8 x 2.3 inches / 122 x 122 x 58 mm).

A complete ezDALI system includes the following:

1. Group Controller (DLC) or Group & Scene

Controller (DLCSS)

2. Power Supply (DPS series)

3. Lighting fixtures equipped with DALI ballasts

Optional components in the system are:

4. Remote Scene Switch (DSS4) for use with

Group & Scene Controller (DLCSS)

5. Relay Module (DRM) to control non-DALI fixtures

6. Occupancy Sensor(s)

Operation

Once the Relay Module is installed in the ezDALI

system per the instructions on the reverse side of this

sheet, it is addressed and controlled as if it were a

DALI ballast.

To illustrate, assume the Relay Module is controlling a

group of wall wash fixtures in a conference room with

a Group & Scene Controller. The wall wash fixtures

have standard electric ballasts. The other fixtures are

linear fluorescents with DALI dimming ballasts. The

objective is to control the fluorescents independently of

the wall wash fixtures to create lighting scenes for

meetings, AV presentations and whiteboard discussions.

The first step would be to create two control groups:

Group A for the non-dimmed wall wash fixtures and

Group B for the fluorescents. Refer to “Create Groups”

in the Group & Scene Controller instructions. Press

and release the SELECT button until the wall wash

fixtures turn on. Pressing and holding the Group A

button on the Group & Scene Controller links the

Relay Module to that Group button. Follow the same

process to link the fluorescent fixtures to the Group B

button on the Group & Scene Controller.

The second step would be to use the two Group buttons

to create the desired lighting scenes. In each scene,

the Relay Module would either be ON or OFF.

Features

• Digital control of non-DALI loads

• Dual voltage 120/277 VAC operation

• Zero Crossing Circuitry protects relay from inrush

current and increases life

• Compatible with DALI ballast commands

• UL listed for plenum operation

•May also be wired as a Class 2 device

Ratings

•Power Input: 120 or 277 VAC, 60 Hz, 0.1 A

• Load Rating: 20 A Ballast or Tungsten, 1 HP Motor

• Current Draw: 7 mA from DALI bus

• UL and CUL Listed — 916 Energy Management

Equipment

Before proceeding, read the instructions on the

reverse side of this sheet. If you have any questions,

call our Service Team at: 888-852-2778.

Panel Division 888-852-2778

Figure 1 – Typical System Wiring

Fixtures with DALI Ballasts

Fixtures without DALI Ballasts

Power

hot, neutral

and ground

Relay

Module

(DRM)

DALI Data Bus

minimum 18/2, no ground, stranded or solid copper, 600 volt insulation

(DALI and power may be combined into a 5-wire cable)

Junction Box

Group & Scene Controller

(DLCSS4-x)

Power

Supply

(DPS150-x)

Class 2

18/2

NOT TO SCALE.

FOR ILLUSTATION PURPOSES ONLY.

INDRM 071504

DRM ezDALI Relay Module — Installation and Setup

WARNING – The Relay Module is

intended for use only with other DALI

ballasts and controls. Install in

accordance with the National Electrical

Code and all applicable state and

local codes.

Installation

Refer to Figures 1 and 2

1 Remove the cover and install the

desired number of knock-out bushings

in the high-voltage compartment.

2 Wire the black and white leads to 120

VAC (277 VAC) incoming power hot

and neutral, respectively.

3 Wire the two red leads as you would a

standard wall switch by attaching one

to the hot wire and the other to the

switched load.

4 Wire the two orange leads to the DALI

bus. Do not connect orange wires to

line voltage. Doing so will damage

the Relay Module and may present

a safety hazard. Do not run DALI

wires unprotected.

5 Verify the proper connection of all

wiring, dress the cables appropriately

and replace the cover.

Figure 2 – DRM Wiring: Class 1 Installation (left) and

Class 2 Wiring Option (right)

POWER (BLK/WHT)

DALI (ORG/ORG)

LOAD (RED/RED)

HIGH-VOLTAGE

COMPARTMENT

DALI WIRES KEPT

ON LOW-VOLTAGE

SIDE OF BARRIER

Legrand ezDALI Relay Module Installation guide

Legrand ezDALI Relay Module Installation guide

Legrand ezDALI Relay Module Installation guide

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