Creston DIN-1DIMU4 User Manual

Crestron DIN-1DIMU4
DIN Rail Universal Dimmer
Operations & Installation Guide

This document was prepared and written by the Technical Documentation department at:

Crestron Electronics, Inc.

15 Volvo Drive

Rockleigh, NJ 07647

1-888-CRESTRON

Regulatory Compliance

This product is Listed to applicable UL Standards and requirements by Underwriters Laboratories Inc.

As of the date of manufacture, the DIN-1DIMU4 has been tested and found to comply with specifications for CE
marking and standards per EMC and Radiocommunications Compliance Labelling.

Federal Communications Commission (FCC) Compliance Statement

This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions:
(1) This device may not cause harmful interference and (2) this device must accept any interference received,
including interference that may cause undesired operation.

CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for compliance
could void the user’s authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:

Reorient or relocate the receiving antenna

Increase the separation between the equipment and receiver

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected

Consult the dealer or an experienced radio/TV technician for help

Industry Canada (IC) Compliance Statement

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

All brand names, product names and trademarks are the property of their respective owners.

©2010 Crestron Electronics, Inc.

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Contents

DIN Rail Universal Dimmer: DIN-1DIMU4 1

Introduction ...............................................................................................................................1

Features and Functions................................................................................................ 1

Applications.................................................................................................................4

Specifications ..............................................................................................................5

Physical Description.................................................................................................... 7

Setup ........................................................................................................................................ 12

Network Wiring......................................................................................................... 12

Identity Code ............................................................................................................. 12

Installation................................................................................................................. 13

Hardware Hookup .....................................................................................................15

Programming Software............................................................................................................17

Earliest Version Software Requirements for the PC .................................................17

Programming with Crestron SystemBuilder.............................................................. 18

Programming with D3 Pro.........................................................................................18

Programming with SIMPL Windows........................................................................ 18

Example Program...................................................................................................... 20

Uploading and Upgrading........................................................................................................ 21

Establishing Communication.....................................................................................21

Programs and Firmware ............................................................................................22

Program Checks ........................................................................................................22

Operation .................................................................................................................................23

Problem Solving ......................................................................................................................26

Troubleshooting......................................................................................................... 26

Check Network Wiring..............................................................................................28

Reference Documents................................................................................................30

Further Inquiries........................................................................................................ 30

Future Updates ..........................................................................................................30

Return and Warranty Policies.................................................................................................. 31

Merchandise Returns / Repair Service ......................................................................31

CRESTRON Limited Warranty.................................................................................31

Operations & Installation Guide – DOC. 6668C Contents • i

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

DIN Rail Universal Dimmer:
DIN-1DIMU4

Introduction

The DIN-1DIMU4 is a four channel universal lighting control module
designed to support dimming of both forward and reverse phase type
loads. A single model supports both 120 and 220-240 Volt electronic and
magnetic low-voltage, incandescent, neon/cold cathode, 2-wire dimmable
fluorescent, and non-dimmable lighting loads up to 5 Amps per channel,
10 Amps total.

Features and Functions

• Four channels of forward or reverse phase dimming

• Auto load detection

• 120 to 240 Volt 50/60 Hz operation

• Selectable non-dim mode

• Extreme stability in noisy environments

• Short circuit and overload protection

• Master air-gap relay

• Override input

®

• Cresnet

communications

• Setup via front panel or software

• Programmable functionality via DIN-AP2

• 12M wide DIN rail mounting

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 1

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Auto Load Detection

Each channel of the DIN-1DIMU4 is capable of auto-detecting the
dimmable load type connected to it and selecting the appropriate
operating mode to control that load. Reverse phase (trailing edge) mode
supports incandescent and electronic low-voltage load types, while
forward phase (leading edge) mode handles magnetic low-voltage, neon,
and other inductive load types. A non-dim mode is also selectable for
switching of non-dimmable lighting fixtures. Any channel may be set for
any mode, allowing one dimmer module to handle any combination of
lighting types on four separately controlled circuits.

Phase-Synchronous Detection Circuitry

Crestron's proprietary zero cross filter technology provides superior
immunity to noise on the power line, reducing lamp flicker and
compensating for fluctuations in line voltage and frequency.

Short Circuit Protection

Built-in over current protection (OCP) prevents failure of the
DIN-1DIMU4 caused by excessive loading or improper wiring of the
outputs.

Master Air-Gap Relay

When all four channels are turned fully off, the internal master relay
automatically opens providing air-gap isolation to allow safe servicing
and changing of light bulbs on all four controlled circuits.

Override Input

An override input is provided to allow an external contact closure to
momentarily override the control system program and set each channel
output to its override preset level. Levels can be adjusted and saved
locally from the front panel, or remotely via software.

2 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

DIN Rail Installation

The DIN-1DIMU4 is designed to snap onto a standard DIN rail for
installation in a wall mount enclosure. Wiring connections are made
using screw terminals positioned along the bottom, clearly accessible
from the front for easy installation and servicing. All setup controls and
indicators are positioned on the center front panel. When installed in an
enclosure utilizing 45 mm cutouts, the DIN-1DIMU4's front panel stays
accessible while the connections are concealed.

Cresnet®

The DIN-1DIMU4 communicates with a DIN-AP2 2-Series Automation
Processor, or other Crestron 2-Series control system, via the Cresnet
control network. A pair of Cresnet ports is provided on the DIN-1DIMU4
allowing for easy daisy-chaining of several DIN Rail Series automation
control modules.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 3

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Applications

The following diagram shows a DIN-1DIMU4 in a typical application.

DIN-1DIMU4 in a Typical Application

4 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Specifications

Specifications for the DIN-1DIMU4 are listed in the following table.

DIN-1DIMU4 Specifications

SPECIFICATION DETAILS

Load Ratings
Dimmer Channels 4
Maximum Per Channel 5 Amps @ 120-240 Volts AC,

50/60 Hz;
600 Watts @ 120 Volts AC,
1150 Watts @ 230 Volts AC,
1200 Watts @ 240 Volts AC

Module Total 10 Amps @ 120-240 Volts AC,

50/60 Hz;
1200 Watts @ 120 Volts AC,
2300 Watts @ 230 Volts AC,
2400 Watts @ 240 Volts AC

Load Types Forward phase (leading edge) or

reverse phase (trailing edge)
electronic low-voltage,
incandescent, neon/cold cathode,
magnetic low-voltage, dimmable
2-wire fluorescent and non-dim

lighting
Input Voltage
Line Power 120-240 Volts AC, 50/60 Hz
Power Requirements
Cresnet Power Usage 0.6 Watts

(0.03 Amps @ 24 Volts DC) when

line power is not available
Default Net ID 86
Minimum 2-Series Control

System Update File

1, 2

Version 4.000.0226 or later

(Continued on following page)

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 5

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

DIN-1DIMU4 Specifications (Continued)

SPECIFICATION DETAILS

Environmental
Temperature 0º to 40º C (32º to 104º F)
Humidity 10% to 90% RH

(non-condensing)
Heat Dissipation 60 BTU/Hr @ 240 Volts with two

channels @ 5A

50 BTU/Hr @ 120 Volts with two

channels @ 5A
Enclosure Aluminum with polycarbonate

label overlay, 35 mm DIN EN

60715 rail mount, DIN 43880 form

factor for enclosures with 45 mm

front panel cutout, occupies 12

DIN module spaces (216 mm)3
Dimensions
Height 95 mm (3.71 in)
Width 216 mm (8.49 in)
Depth 60 mm (2.35 in)
Weight 912 g (32 oz)

1. The latest software versions can be obtained from the Crestron website. Refer to

the NOTE following these footnotes.

2. Crestron 2-Series control systems include the AV2 and PRO2. Consult the latest

Crestron Product Catalog for a complete list of 2-Series control systems.

3. Unit dissipates significant heat when fully loaded and should be mounted in an

enclosure that is sufficiently ventilated to maintain an ambient temperature not
exceeding 40º C (104º F). Maintain 100 mm (4 in) minimum spacing above and
below for proper ventilation and heat dissipation, 150 mm (6 in) spacing
recommended.

NOTE: Crestron software and any files on the website are for authorized
Crestron dealers and Crestron Authorized Independent Programmers
(CAIP) only. New users may be required to register to obtain access to
certain areas of the site (including the FTP site).

6 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Physical Description

This section provides information on the connections, controls and
indicators available on your DIN-1DIMU4.

DIN-1DIMU4 Physical View

DIN-1DIMU4 Overall Dimensions (Front View)

2

90 mm

(3.55 in)

95 mm

(3.71 in)

1

3

5

4

6

216 mm
(8.49 in)

7

8

9

10

11

12

13

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 7

3

14

15 16 17

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

DIN-1DIMU4 Overall Dimensions (Side View)

58 mm

(2.29 in)

60 mm

(2.35 in)

Connectors, Controls & Indicators

# CONNECTORS1,

CONTROLS &

INDICATORS

1 NET ID

DISPLAY and

CONTROL

2 SETUP

(LED and BUTTON)

(Continued on following page)

DESCRIPTION

(2) 7-segment green LED digits
and (2) miniature pushbuttons
for setting Cresnet ID; digits
also display output levels and
protection/error codes

(1) Red LED and (1) recessed
miniature pushbutton for
enabling setup mode and
touch-settable ID

8 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Connectors, Controls & Indicators (Continued)

# CONNECTORS1,

DESCRIPTION

CONTROLS &

INDICATORS

3 OVR

(LED and BUTTON)

4 PWR LED (1) Green LED, normally

(1) Red LED and (1) miniature
pushbutton for enabling
Override mode and saving
override presets;
Maximum wire size: 1.5mm
(16 AWG);
For more information, refer to
“Operation” which starts on
page 23.

indicates AC line power is
connected to either LIVE
terminal, blinks when only
powered by Cresnet

2

5 NET LED (1) Yellow LED, indicates

communication with the control
processor

6 RESET (1) Recessed miniature

pushbutton, resets internal
processor

7 FWD (1 – 4) LED (4) Red LEDs, illuminate when

a corresponding channel is
operating in a forward phase
mode

8 REV (1 – 4) LED (4) Red LEDs, illuminate when

a corresponding channel is
operating in a reverse phase
mode

(Continued on following page)

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 9

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Connectors, Controls & Indicators (Continued)

# CONNECTORS1,

DESCRIPTION

CONTROLS &

INDICATORS

9 AUTO (1 – 4) LED (4) Red LEDs, illuminate when

a corresponding channel is set
to auto-detect the load type

10 NON-DIM (1 – 4) LED (4) Red LEDs, illuminate when

a corresponding channel is
operating in non-dim mode

11 CHANNEL MODE

SELECT

(1 – 4)

12 LOADS (1 – 4)

(LEDs and BUTTONS)

(4) Recessed miniature
pushbuttons, used to select
each channel’s operating
mode;
For more information, refer to
“Operation” which starts on
page 23.

(4) Red LEDs and (4) miniature
pushbuttons for status
indication and local control of
each channel

13 NET

(Continued on following page)

(2) 4-pin 3.5 mm detachable
terminal blocks, paralleled;
Cresnet slave port
Maximum wire size: 1.5 mm2
(16 AWG)
24: Power (24 Volts DC)
Y: Data
Z: Data
G: Ground

10 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Connectors, Controls & Indicators (Continued)

# CONNECTORS1,

CONTROLS &

INDICATORS

14 OVERRIDE

15 LIVE

16 NEUTRAL

DESCRIPTION

(2) 2-pin 3.5mm detachable
terminal blocks, paralleled;
Sensing input for external
low-voltage contact closure;
Activates Override mode when
a closure is present;
Minimum Closure Rating:
10mA (per module) at 24 Volts

(2) Captive screw terminals2,
brown;
Line power input

(5) Captive screw terminals
blue

2

,

17 DIMMED LIVE (1 – 4) (4) Captive screw terminals2,

red;
Dimmer channel outputs 1 – 4

18 GROUND

(5) Captive screw terminals

2

,

green

1. Interface connectors for NET and OVERRIDE ports are provided with the unit.

2

2. Captive screw terminals accept up to 2.5 mm

(12 AWG) wires per terminal.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 11

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Setup

Network Wiring

When wiring the Cresnet network, consider the following:

• Use Crestron Certified Wire.

NOTE: Cresnet HP cannot be used.

• Use Crestron power supplies for Crestron equipment.

• Provide sufficient power to the system.

CAUTION: Insufficient power can lead to unpredictable results
or damage to the equipment. Please use the Crestron Power
Calculator to help calculate how much power is needed for the
system (www.crestron.com/calculators

).

• For networks with 20 or more devices, use a Cresnet Hub/Repeater

(DIN-HUB) to maintain signal quality.

For more details, refer to “Check Network Wiring” on page 28.

Identity Code

The Net ID of the DIN-1DIMU4 has been factory set to 86. The Net IDs
of multiple DIN-1DIMU4 devices in the same system must be unique.
Net IDs are changed on the front panel of the DIN-1DIMU4 or from a
personal computer (PC) via Crestron Toolbox™ (refer to “Establishing
Communication” on page 21).

To set the Net ID using the front panel:

1. Press the SETUP button to enter the Setup mode. The SETUP

LED illuminates.

2. Press the left button under the NET ID display to change the most

significant digit of the Net ID or press the right button under the
NET ID display to change the least significant digit of the Net ID
number.

3. When the desired Net ID is displayed, press the SETUP button to

exit the Setup mode. The SETUP LED extinguishes.

12 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

NOTE: If an invalid Net ID is set (e.g., 00, 02, FF), “Er” will be
displayed on the NET ID display. The DIN-1DIMU4 will revert to
the previously set Net ID.

NOTE: The DIN-1DIMU4 will leave the Setup mode after 10
seconds of inactivity. The DIN-1DIMU4 will revert to the
previously set Net ID.

NOTE: A small label (with numbers and letters) is provided on
the front panel of the DIN-1DIMU4 to document the unit’s Net ID
in the case where power is not available. Apply a mark over the
digits that correspond to the assigned Net ID.

NET ID Label (“3C” Shown)

When setting the Net ID, consider the following:

• The Net ID of each unit must match an ID code specified in the

SIMPL™ Windows program.

• Each network device must have a unique Net ID.

For more details, refer to the Crestron Toolbox help file.

Installation

The DIN-1DIMU4 must be installed by a licensed electrician, in
accordance with all national and local codes.

CAUTION: This equipment is for indoor use only. Mount in a well
ventilated area. The ambient temperature must be 0º to 40º C
(32º to 104º F). The relative humidity must be 10% – 90%
(non-condensing).

NOTE: When installing in an enclosure, high-voltage devices should be
grouped separately from low-voltage devices.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 13

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

The DIN-1DIMU4 is designed for installation on a DIN rail. Refer to the
following diagram when installing.

Installing the DIN-1DIMU4

DIN-1DIMU4

TOP

DIN RAIL
(NOT SUPPLIED)

DIN RAIL RELEASE

1. Use a flat object (e.g., a flat-head screwdriver) to pull the DIN rail

release downward.

2. With the top of the unit tilted toward you, place the DIN-1DIMU4

against the bottom of the DIN rail.

NOTE: When mounting DIN rail products, it may be necessary to
use a flat-head screwdriver to pull the DIN rail release tab while
snapping the device onto the DIN rail.

3. Tilt the top of the DIN-1DIMU4 toward the DIN rail until it is

secure on the top edge of the rail. Push the DIN rail release upward
to lock the DIN-1DIMU4 into place.

To remove the DIN-1DIMU4 from the DIN rail, use a small, flat object
(e.g., a flat-head screwdriver) to pull the DIN rail release downward to
unlock it and tilt the top of the DIN-1DIMU4 away from the DIN rail.

NOTE: Certain third party DIN cabinets provide space for an
informational label between each DIN rail row. Crestron’s Engraver
software (version 4.0 or later) can generate appropriate labels for all
Crestron DIN rail products.

14 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Hardware Hookup

Make the necessary connections as called out in the illustration that
follows this paragraph. Refer to “Network Wiring” on page 12 before
attaching the 4-position terminal block connector. Apply power after all
connections have been made.

WARNING: Prior to connecting the device, turn off power at the circuit
breaker. Failure to do so may result in serious personal injury or damage
to the device. Restore power after all connections have been made.

CAUTION: Connecting this device to the wrong type of load or
short-circuiting the load can cause severe product damage. Each load
should be tested to identify a short circuit condition prior to wiring the
load to the module.

NOTE: Install in accordance with all local and national electric codes.

2

NOTE: High-voltage connections accept 2.5 mm

(12 AWG) wire. Wire
should be stripped to 8 mm (1/3 inch). Tighten terminal blocks to 0.5 Nm
(5 in-lbs).

NOTE: Use copper wire only. For high-voltage connections, use wire
rated for at least 75º C (167º F).

NOTE: The DIN-1DIMU4 power feed must be protected by a 10 A (trip
curve C) breaker or equivalent.

NOTE: The DIN-1DIMU4 outputs must be used for control of
permanently installed lighting loads only.

NOTE: Do not mix magnetic and electronic transformers on the same
dimmer output.

NOTE: Ensure the unit is properly grounded by connecting the chassis
ground lug to an earth ground (building steel).

NOTE: To prevent overheating, do not operate this product in an area
that exceeds the environmental temperature range listed in the table of
specifications.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 15

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

When making connections to the DIN-1DIMU4, use Crestron power
supplies for Crestron equipment.

Hardware Connections for the DIN-1DIMU4

NET:

To Control System and Other

Cresnet Devices

OVERRIDE:

From Device Providing Override Signal &

to Other Devices Receiving Override

Signal

With the circuit breaker turned off, connect the wires to the terminal
blocks per the markings provided on the DIN-1DIMU4.

Load Connection Example for the DIN-1DIMU4

Neutral

Ground

NEUTRAL:

Neutral Connection

from AC Power Line

LIVE:

Line Power Input from AC

Power Line

DIMMED LIVE (1 - 4):

Dimmer Channel

Outputs

Neutral

Line

Line

120/240 Volts from

Breaker

16 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Ground

Ground

120/240 Volts

Load

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Programming Software

Have a question or comment about Crestron software?

Answers to frequently asked questions (FAQs) can be viewed in the
Online Help section of the Crestron website. To post a question or view
questions you have submitted to Crestron’s True Blue Support, log in at

www.crestron.com/support

account.

Earliest Version Software Requirements for the PC

NOTE: Crestron recommends that you use the latest software to take
advantage of the most recently released features. The latest software is
available from the Crestron website.

. First-time users will need to establish a user

Crestron has developed an assortment of Windows-based software tools
to develop a Cresnet system. You can create a program to control the
DIN-1DIMU4 control system using the Crestron programming tools
Crestron SystemBuilder™, D3 Pro
whose focus is on lighting systems may prefer to use the D3 Pro software
since it is designed especially for creating lighting and environmental
system control applications. Customers already familiar with SIMPL
Windows who are including a lighting system as part of an overall
control system project may prefer to continue using SIMPL Windows.
For the minimum recommended software versions, visit the Version
Tracker page of the Crestron website (www.crestron.com/versiontracker

NOTE: When the DIN-1DIMU4 is restarted after the power is lost, the
dimmer will return to the lighting levels that were set prior to restarting.
To have the lighting levels restored to a pre-determined level requires
additional programming. At minimum, a five second delay must be added
into the program before any commands are sent.

®

or SIMPL Windows. Customers

).

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 17

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Programming with Crestron SystemBuilder

Crestron SystemBuilder is the easiest method of programming but does
not offer as much flexibility as SIMPL Windows. For additional details,
download SystemBuilder from the Crestron website and examine the
extensive help file.

Programming with D3 Pro

Crestron’s D3 Pro lighting software provides all the tools necessary to
create a complete Crestron lighting system for residential applications.
The lighting system includes the control system logic program,
touchpanel projects and keypad programming, documentation and real­time lighting adjustment capabilities.

As with all Crestron software, D3 Pro provides extensive right-click and
drag-and-drop functionality in addition to convenient keyboard shortcuts
for frequently used functions and commands.

Configuration
Manager

Programming is organized into six system Views of the lighting system,
each providing a moveable toolbox of devices such as interfaces, fixtures
and control modules. You can add a device to your system simply by
selecting it from one of the toolboxes and dragging it to a room. The
available toolboxes differ depending on the View but all Views include a
"General" toolbox that allows you to add areas and rooms at any time.

Programming with SIMPL Windows

NOTE: While SIMPL Windows can be used to program the
DIN-1DIMU4, it is recommended to use D3 Pro or SystemBuilder for
configuring a system.

SIMPL Windows is Crestron’s premier software for programming
Crestron control systems. It is organized into two separate but equally
important “Managers”.

Configuration Manager is the view where programmers “build” a
Crestron control system by selecting hardware from the Device Library.

1. To incorporate the DIN-1DIMU4 into the system, drag the

DIN-1DIMU4 from the Lighting | Lighting (Din-Rail Series)
folder of the Device Library and drop it in the System Views.

18 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Locating the DIN-1DIMU4 in the Device Library

2. The system tree of the control system displays the device in the

appropriate slot with a default Net ID as shown in the following
illustration.

C2Net Device, Slot 5

3. Additional DIN-1DIMU4 devices are assigned different Net ID

numbers as they are added.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 19

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

4. If necessary, double click a device to open the “Device Settings”

window and change the Net ID, as shown in the following figure.

“Device Settings: Crestron DIN-1DIMU4” Window

Program
Manager

5. The ID code specified in the SIMPL Windows program must

match the Net ID of each unit. Refer to “Identity Code” which
starts on page 12.

Program Manager is the view where programmers “program” a Crestron
control system by assigning signals to symbols.

The symbol can be viewed by double clicking on the icon or dragging it
into Detail View. Each signal in the symbol is described in the SIMPL
Windows help file (F1).

Example Program

An example program for the DIN-1DIMU4 is available from the Crestron
website (www.crestron.com/exampleprograms

).

20 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Uploading and Upgrading

Crestron recommends using the latest programming software and that
each device contains the latest firmware to take advantage of the most
recently released features. However, before attempting to upload or
upgrade it is necessary to establish communication. Once communication
has been established, files (for example, programs or firmware) can be
transferred to the control system (and/or device). Finally, program checks
can be performed (such as changing the device ID or creating an IP table)
to ensure proper functioning.

Establishing Communication

Use Crestron Toolbox for communicating with the DIN-1DIMU4; refer
to the Crestron Toolbox help file for details. There is a single method of
communication: indirect communication.

Indirect Communication

PC Running

Crestron Toolbox

Serial,

Ethernet

or USB

Control System

DIN-1DIMU4

Cresnet

DIN-1DIMU4 connects to control system via Cresnet:

1. Establish communication between the PC and the control system

as described in the latest version of the 2-Series Control Systems
Reference Guide (Doc. 6256), which is available from the Crestron
website (www.crestron.com/manuals

).

2. Use the Address Book in Crestron Toolbox to create an entry for

the DIN-1DIMU4 using the expected communication protocol
(indirect). Select the Cresnet ID of the DIN-1DIMU4 and the
address book entry of the control system that is connected to the
DIN-1DIMU4.

3. Display the DIN-1DIMU4’s “System Info” window (click the

icon); communications are confirmed when the device information
is displayed.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 21

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Programs and Firmware

Program or firmware files may be distributed from programmers to
installers or from Crestron to dealers. Firmware upgrades are available
from the Crestron website as new features are developed after product
releases. One has the option to upload programs via the programming
software or to upload and upgrade via the Crestron Toolbox. For details
on uploading and upgrading, refer to the SIMPL Windows help file or the
Crestron Toolbox help file.

SIMPL
Windows

Firmware

If a SIMPL Windows program is provided, it can be uploaded to the
control system using SIMPL Windows or Crestron Toolbox

Check the Crestron website to find the latest firmware. (New users may
be required to register to obtain access to certain areas of the site,
including the FTP site.)

Upgrade DIN-1DIMU4 firmware via Crestron Toolbox.

1. Establish communication with the DIN-1DIMU4 and display the

“System Info” window.

2. Select Functions | Firmware… to upgrade the DIN-1DIMU4

firmware.

Program Checks

Using Crestron Toolbox, display the network device tree (Tools |
Network Device Tree) to show all network devices connected to the

control system. Right-click on the DIN-1DIMU4 to display actions that
can be performed on the DIN-1DIMU4.

22 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Operation

NET ID

Manual
Control

Override
Mode

Use the NET ID buttons to change the Net ID of the DIN-1DIMU4. For
information on Net ID, refer to “Identity Code” which starts on page 12.

The lighting level of each output can be manually controlled from the
front panel.

To toggle the light between off and 100% (on), tap the appropriate
LOAD button. The corresponding LED illuminates and the output level
is shown on the NET ID display (“oF” for off, “On” for on) for two
seconds after the button is released.

To ramp the lighting level up or down (until it reaches a limit), press and
hold the appropriate LOAD button. To change the ramp direction,
release LOAD button, then press and hold it again. The corresponding
LED illuminates and the output level is shown on the NET ID display
as a percentage (01-99) for two seconds after the button is released.

NOTE: The control system program may change the settings if the
Override mode is not enabled.

The Override mode overrides the control system program and sets all of
the lighting levels to the stored override values. For instructions on
saving override settings, refer to “Save Override Settings” on page 24.

To enable Override mode, press and release the OVR button. The OVR
LED flashes slowly.

NOTE: If the Override mode was enabled from an external device (i.e.

a contact closure is present on the OVERRIDE terminals), the OVR

LED will flash quickly. Pressing the OVR button has no effect.

To disable Override mode, press the OVR button again. The OVR LED
extinguishes and the lights return to the levels set by the control system
program.

NOTE: If override levels have not been saved, the factory default

override level is 100%.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 23

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Save
Override
Settings

Reset

Manual
Operating
Mode
Selection

The lighting level of each output can be saved as an override setting,
which can be automatically recalled when the Override mode is enabled.

NOTE: The control system program has a setting that can prevent

locally saving the override level settings. If this setting is enabled, the

display shows “Er” when trying to save override level settings. For more

information, refer to the SIMPL Windows help file.

To save the current lighting level values as override settings, press and
hold the OVR button for three seconds. The OVR LED blinks to
indicate the new override setting has been stored.

To reboot the DIN-1DIMU4, press the RESET button. The lighting
levels will be set to the levels currently specified by the control system
program. If the control system does not provide any values, the lighting
levels will be set to the previously stored values.

In the event that the DIN-1DIMU4 is to be operated without a

connection to a control system*, the operating mode must be set locally.

The operating mode of the DIN-1DIMU4 is determined by load type

that is connected. The dimmer’s default operating mode is AUTO, an

appropriate mode for various types of dimming operation. The output

mode of the dimmer only needs to be changed when the connected

device is not dimmable or is not being detected properly.

* Once a program has been downloaded to the DIN-1DIMU4, the manual selection

of load types will be restricted. For example, if the program defines a channel as
non-dim, it cannot be set to dim locally. Similarly, if the program defines a
channel as dimmable, it cannot be set to non-dim locally. When assigned as
dimmable in the program, the auto load type is selected by default.

CAUTION: Setting the operating mode incorrectly may cause damage

to the DIN-1DIMU4 or the lighting load.

Once a connection to a control system has been established the SIMPL

windows symbol should define the unit as DIM or NON-DIM. The

operating mode must still be selected locally on the dimmer.

The operating mode is selected locally for each channel using the
recessed Channel Mode Select push buttons. Press the recessed push
button for the appropriate channel until the proper operating mode is
selected. Repeat this process for each channel on the dimmer. Refer to
the table on the following page for information about each operating
mode and the corresponding unit display.

24 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Operating Mode and Unit Display

OPERATING MODE UNIT DISPLAY

FWD – Channel operates as a dimmer

using only forward phase (leading edge)
dimming. The FWD LED will illuminate
when using forward phase dimming.

This mode is most suitable for magnetic
transformers.

REV - Channel operates as a dimmer
using reverse phase (trailing edge)
dimming. The REV LED will illuminate
when using reverse phase dimming.

This mode is most suitable for electronic
transformers, incandescent lamps and the
CLS-EXP Power Extender module (sold
separately).

AUTO – Channel operates as a dimmer
and uses the built-in auto load detection to
determine the most suitable dimming
technology. The AUTO LED will illuminate
along with the REV or FWD LED to
indicate the dimming technology being
used.

• REV LED - lights when dimming
electronic transformers or
incandescent lamps.

• FWD LED - lights when dimming
magnetic transformers.

NON-DIM – Channel operates only as a
switch with no dimming capabilities. The
NON-DIM LED will illuminate when
operating as a switch.

Operating mode should be set to
NON-DIM when controlling non-dimmable
fixtures.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 25

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Problem Solving

Troubleshooting

The following table provides corrective action for possible trouble
situations. If further assistance is required, please contact a Crestron
customer service representative.

DIN-1DIMU4 Troubleshooting

TROUBLE POSSIBLE

CAUSE(S)

Device does not
function.

DIN-1DIMU4 is
not receiving
power from the
AC line or the
Crestron power
supply.

Device is not
receiving power
from a Crestron
power source.

Device is not
receiving
sufficient power.

CORRECTIVE

ACTION

Ensure circuit breaker
is not tripped.

Use a Crestron power
source. Verify
connections.

Use the Crestron
Power Calculator to
help calculate how
much power is
needed for the
system.

Electrostatic
discharge due to
improper
grounding.

PWR LED
blinks.

(Continued on following page)

26 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

DIN-1DIMU4 is
not receiving
power from the
AC line.

Check that all ground
connections have
been made properly.

Ensure circuit breaker
is not tripped.

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

DIN-1DIMU4 Troubleshooting (Continued)

TROUBLE POSSIBLE

CAUSE(S)

LOADS (status)

LED on a
channel is
blinking once
per second.

LOADS (status)
LED on a
channel is
blinking twice per
second.

LOADS (status)
LED on a
channel is
blinking three
times per
second.

Over current
protection has
tripped.

Channel has been
programmed to use
reverse phase
control (REV) but
has detected a
magnetic load
connected.

The channel has
overheated and
shut down to
protect itself.

CORRECTIVE

ACTION

Check wiring on
corresponding output
for a short circuit.
Check total load on
corresponding output
for an overload.

Change programming
to use AUTO or FWD.

Reduce loading on the
channel. Reduce
loading on the module.
Improve enclosure
ventilation to reduce
ambient temperature.

Unit ignores
Cresnet
commands.

LOADS (status)
LED on a
channel is
constantly
blinking fast.
Light connected
to dimmer
intermittently
flashes to full
brightness.

(Continued on following page)

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 27

Unit is in Override
mode.

The Electronic
transformers
connected are not
suitable for
dimming.

Take out of Override
mode by pressing OVR
button or releasing
override contact closure.

Disconnect load to verify
problem disappears.

Replace transformers.

Add a minimum 10W
incandescent lamp in
parallel with
transformers.

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

DIN-1DIMU4 Troubleshooting (Continued)

Use the
Right Wire

TROUBLE POSSIBLE

CAUSE(S)

LOADS (status)

LED on a channel
is constantly
blinking fast.
Light connected
to dimmer stays
on full brightness.

The unit has a
permanent fault.

CORRECTIVE

ACTION

Disconnect load to verify
problem persists.

Leave load
disconnected, or
connect to another
channel

Contact Crestron for
support.

Check Network Wiring

In order to ensure optimum performance over the full range of your
installation topology, Crestron Certified Wire and only Crestron
Certified Wire may be used. Failure to do so may incur additional
charges if support is required to identify performance deficiencies
because of using improper wire.

Calculate
Power

CAUTION: Use only Crestron power supplies for Crestron equipment.
Failure to do so could cause equipment damage or void the Crestron
warranty.

CAUTION: Provide sufficient power to the system. Insufficient power
can lead to unpredictable results or damage to the equipment. Please use
the Crestron Power Calculator to help calculate how much power is
needed for the system (www.crestron.com/calculators

When calculating the length of wire for a particular Cresnet run, the
wire gauge and the Cresnet power usage of each network unit to be
connected must be taken into consideration. Use Crestron Certified Wire
only. If Cresnet units are to be daisy-chained on the run, the Cresnet
power usage of each network unit to be daisy-chained must be added
together to determine the Cresnet power usage of the entire chain. If the
unit is home-run from a Crestron system power supply network port, the
Cresnet power usage of that unit is the Cresnet power usage of the entire
run. The wire gauge and the Cresnet power usage of the run should be
used in the following equation to calculate the cable length value on the
equation’s left side.

).

28 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Cable Length Equation

Strip and Tin
Wire

L = Length of run (or chain) in feet
R = 6 Ohms (Crestron Certified Wire: 18 AWG (0.75 MM ))

or 1.6 Ohms (Cresnet HP: 12 AWG (4 MM ))

P = Cresnet power usage of entire run (or chain)

2

2

L <

Where:

40,000

R x P

Make sure the cable length value is less than the value calculated on the
right side of the equation. For example, a Cresnet run using 0.75 mm

2

(18 AWG) Crestron Certified Wire and drawing 20 watts should not
have a length of run more than 101 meters (333 feet). Cresnet HP cannot
be used.

NOTE: All Crestron certified Cresnet wiring must consist of two
twisted pairs. One twisted pair is the +24V conductor and the GND
conductor and the other twisted pair is the Y conductor and the Z
conductor.

When daisy-chaining Cresnet units, strip the ends of the wires carefully
to avoid nicking the conductors. Twist together the ends of the wires
that share a pin on the network connector and tin the twisted connection.
Apply solder only to the ends of the twisted wires. Avoid tinning too far
up the wires or the end becomes brittle. Insert the tinned connection into
the Cresnet connector and tighten the retaining screw. Repeat the
procedure for the other three conductors.

Add Hubs

Use of a Cresnet Hub/Repeater (DIN-HUB) is advised whenever the
number of Cresnet devices on a network exceeds 20 or when the
combined total length of Cresnet cable exceeds 914 meters (3000 feet).

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 29

DIN Rail Universal Dimmer Crestron DIN-1DIMU4

Reference Documents

The latest version of all documents mentioned within the guide can be
obtained from the Crestron website (www.crestron.com/manuals
link will provide a list of product manuals arranged in alphabetical order
by model number.

List of Related Reference Documents

). This

DOCUMENT TITLE

2-Series Control Systems Reference Guide

Further Inquiries

If you cannot locate specific information or have questions after
reviewing this guide, please take advantage of Crestron's award winning
customer service team by calling Crestron at 1-888-CRESTRON
[1-888-273-7876].

You can also log onto the online help section of the Crestron website
(www.crestron.com/onlinehelp
First-time users will need to establish a user account to fully benefit from
all available features.

) to ask questions about Crestron products.

Future Updates

As Crestron improves functions, adds new features and extends the
capabilities of the DIN-1DIMU4, additional information may be made
available as manual updates. These updates are solely electronic and
serve as intermediary supplements prior to the release of a complete
technical documentation revision.

Check the Crestron website periodically for manual update availability
and its relevance. Updates are identified as an “Addendum” in the
Download column.

30 • DIN Rail Universal Dimmer: DIN-1DIMU4 Operations & Installation Guide – DOC. 6668C

Crestron DIN-1DIMU4 DIN Rail Universal Dimmer

Return and Warranty Policies

Merchandise Returns / Repair Service

1. No merchandise may be returned for credit, exchange or service without prior authorization

from CRESTRON. To obtain warranty service for CRESTRON products, contact an
authorized CRESTRON dealer. Only authorized CRESTRON dealers may contact the factory
and request an RMA (Return Merchandise Authorization) number. Enclose a note specifying
the nature of the problem, name and phone number of contact person, RMA number and
return address.

2. Products may be returned for credit, exchange or service with a CRESTRON Return

Merchandise Authorization (RMA) number. Authorized returns must be shipped freight
prepaid to CRESTRON, 6 Volvo Drive, Rockleigh, N.J. or its authorized subsidiaries, with
RMA number clearly marked on the outside of all cartons. Shipments arriving freight collect
or without an RMA number shall be subject to refusal. CRESTRON reserves the right in its
sole and absolute discretion to charge a 15% restocking fee plus shipping costs on any
products returned with an RMA.

3. Return freight charges following repair of items under warranty shall be paid by CRESTRON,

shipping by standard ground carrier. In the event repairs are found to be non-warranty, return
freight costs shall be paid by the purchaser.

CRESTRON Limited Warranty

CRESTRON ELECTRONICS, Inc. warrants its products to be free from manufacturing defects in materials
and workmanship under normal use for a period of three (3) years from the date of purchase from
CRESTRON, with the following exceptions: disk drives and any other moving or rotating mechanical
parts, pan/tilt heads and power supplies are covered for a period of one (1) year; touchscreen display and
overlay components are covered for 90 days; batteries and incandescent lamps are not covered.

This warranty extends to products purchased directly from CRESTRON or an authorized CRESTRON
dealer. Purchasers should inquire of the dealer regarding the nature and extent of the dealer's warranty, if
any.

CRESTRON shall not be liable to honor the terms of this warranty if the product has been used in any
application other than that for which it was intended or if it has been subjected to misuse, accidental
damage, modification or improper installation procedures. Furthermore, this warranty does not cover any
product that has had the serial number altered, defaced or removed.

This warranty shall be the sole and exclusive remedy to the original purchaser. In no event shall
CRESTRON be liable for incidental or consequential damages of any kind (property or economic damages
inclusive) arising from the sale or use of this equipment. CRESTRON is not liable for any claim made by a
third party or made by the purchaser for a third party.

CRESTRON shall, at its option, repair or replace any product found defective, without charge for parts or
labor. Repaired or replaced equipment and parts supplied under this warranty shall be covered only by the
unexpired portion of the warranty.

Except as expressly set forth in this warranty, CRESTRON makes no other warranties, expressed or
implied, nor authorizes any other party to offer any warranty, including any implied warranties of
merchantability or fitness for a particular purpose. Any implied warranties that may be imposed by law are
limited to the terms of this limited warranty. This warranty statement supersedes all previous warranties.

Trademark Information

All brand names, product names and trademarks are the sole property of their respective owners. Windows is a registered trademark
of Microsoft Corporation. Windows95/98/Me/XP/Vista/7 and WindowsNT/2000 are trademarks of Microsoft Corporation.

Operations & Installation Guide – DOC. 6668C DIN Rail Universal Dimmer: DIN-1DIMU4 • 31

Crestron Electronics, Inc. Operations & Installation Guide – DOC. 6668C

15 Volvo Drive Rockleigh, NJ 07647 (2020750)
Tel: 888.CRESTRON 04.10
Fax: [phone] Specifications subject to
www.crestron.com change without notice.