ETC UFD User Manual

ETC Installation Guide

120VAC model

shown

Unison Foundry™ Phase-Adaptive Dimmer

Overview

The Unison Foundry Phase-Adaptive Dimmer provides control for 120V and
277V line voltage loads that require forward-phase or reverse-phase
dimming, up to 600 watts.

The Phase-Adaptive Dimmer can be wired to individual fixtures or used for
zone control, and automatically provides reverse-phase or forward-phase
dimming based on the connected load type.

Control connected loads from any DMX control device. Configure the Phase­Adaptive Dimmer either remotely via RDM (using a tool like ETC Net3
Concert) or locally on the controller. See

Dimmer

on

page 6

.

Configure the Phase-Adaptive

Specifications

Ambient Environment

For indoor use only. Rated for plenum use.

• 32°F to 104°F (0°C to 40°C) operating temperatures in 5–95% non­condensing humidity.

Corporate Headquarters  Middleton, Wisconsin, USA  Tel [phone]
Service (Americas)  [e-mail]
London, UK  Tel [phone]  Service: (UK) [e-mail]
Rome, IT  Tel [phone] Service: (UK) [e-mail]
Holzkirchen, DE  Tel [phone]  Service: (DE) [e-mail]
Hong Kong  Tel [phone]  Service: (Asia) [e-mail]
Web: etcconnect.com 
specifications subject to change. 
7179M2100  Rev B  Released 2017-12

© 2017 Electronic Theatre Controls, Inc. 

ETC intends this document to be provided in its entirety.

Product information and

ETC Installation Guide

Phase-Adaptive Dimmer

Electrical Specification

Two models are available:

• 120VAC, +/- 10% at 47–63Hz, maximum load 600W

• 277VAC, +/- 10% at 47–63Hz, maximum load 600W

Supported load types

• Tungsten

• 2-wire Fluorescent

•LED

• Electronic low voltage transformer

• Magnetic low voltage transformers (120V only, 300W maximum load).
Transformers should be correctly loaded to their rated current.

CAUTION:

ETC does not support the use of the Phase-Adaptive
Dimmer with magnetic loads at 277V.

Connecting underloaded magnetic transformers at 120V
to the Phase-Adaptive Dimmer may result in damage to
the Phase-Adaptive Dimmer. This damage is not covered
under warranty.

Compliance

• UL and cUL listed

• Conforms to UL 916 (Energy Management Equipment) and UL 2043
(Plenum rated)

Phase-Adaptive Dimmer Page 2 of 16 ETC

ETC Installation Guide

Phase-Adaptive Dimmer

Prepare for Installation

The Phase-Adaptive Dimmer is designed for mounting directly to an electrical
junction box or panel (provided by others) at the electrical lighting load,
upstream of the load in the circuit.

Note:

If your installation requires Class 2 wiring to be installed
in separate conduit, a voltage barrier installation box is
available from ETC. Order ETC part number 7187A1000.

DMX Control Wiring

The Phase-Adaptive Dimmer connects to a DMX512-A source (provided by
others) for control.

DMX wiring runs can be daisy chains of up to 32 devices with no Y’s or loops.
Each DMX daisy chain must be terminated for proper control performance
(see

Terminate DMX

ETC recommends using Belden 9729 (or approved equivalent) Class 2 wire.
Belden 1583A or equivalent Cat5, Cat5e, or Cat 6 UTP wire is also acceptable
when properly shielded or installed in grounded metal conduit and connected
using the Cat5 IDC termination kit (ETC part number 4100A1013). This
termination kit is not provided with the Phase-Adaptive Dimmer.

A voltage barrier installation box (part number 7187A1000) is available for
installations where DMX control wiring is installed in grounded metal
conduit. Contact ETC to purchase termination kits or voltage barrier
installation boxes if required.

The total combined length of a DMX wire run (using Belden 9729 or
equivalent) may not exceed 1,000 ft (300 m).

Note:

on

page 5

).

All control wiring should be installed and terminated by
a qualified installer and should follow standard wiring
installation practices.

Leave approximately 10 in (255 mm) of wiring available
for connection and to allow slack for future service

.

needs

Note:

Phase-Adaptive Dimmer Page 3 of 16 ETC

For more information on DMX control wiring
requirements, see these and other Support Articles at
etcconnect.com:

• etcconnect.com/Support/Articles/DMX-512-Info.aspx

• etcconnect.com/Support/Articles/DMX-Over-Cat5.aspx

ETC Installation Guide

Phase-Adaptive Dimmer

Installation

Installation should follow all local codes and standard electrical practices.
Ensure that the junction box is clean and free of obstructions and that all
wiring is installed correctly.

WARNING:

WARNING:

1: Locate the circuit breaker panel and turn off the power to the lighting

circuit.

2: To gain access to the line voltage wiring, remove the cover plate and

other hardware from the junction box at the load.

3: Mount the Phase-Adaptive Dimmer to the exterior of the junction box

or panel using the 1/2” threaded nipple. Use the provided 1/2”
conduit locknut to secure the Phase-Adaptive Dimmer to the junction
box or panel.

Note:

Risk of electric shock! This device utilizes high voltage
and should only be installed by a qualified installer or
electrician. Follow all local codes for installation. Before
terminating the AC power wiring verify that the main
breaker is in the off position and follow the proper
lockout/tag out procedures per NFPA Standard 70E.

For indoor use only! Must install to an electrical
junction box or wire way.

Follow all local code requirements for terminating wire.

• Notice that the harness wires on the controller are
pre-stripped for your installation convenience.

• Use appropriately sized wire nuts (not provided) to
secure each termination.

Phase-Adaptive Dimmer Page 4 of 16 ETC

ETC Installation Guide

Wire jumper

Phase-Adaptive Dimmer

Connect DMX

1: Pull wiring to the junction box.
2: Terminate the DMX cable by following the steps in the termination kit

supplied with the unit.

Terminate DMX

Terminate the last device in the DMX data run for proper control
performance. To terminate the DMX data run at the Phase-Adaptive Dimmer,
connect the last two pins on the termination connector with a wire jumper
(not included) as shown below.

Note:

Because resistance is built into the Phase-Adaptive
Dimmer, no additional resistor is required to terminate
the last device in the DMX data run.

Phase-Adaptive Dimmer Page 5 of 16 ETC