Distech Controls ECx-400 Series Manuel utilisateur

ECx-400 UUKL Extension Modules

Figure1: ECx-400 UUKL model

Product Description

This document describes the hardware installation procedures for the ECx-400 Series I/O Extension Modules.

The Distech Controls ECL-600 and ECB-600 Series controllers product line is designed to control and monitor various HVAC equipment such as roof top

units, large air handling units as well as central plant applications such as chillers and boilers. These controllers are compatible with the I/O Extension

Module product line, which includes the following modules: ECx-400, ECx-410, ECx-420, and ECx-400 UUKL.

This document describes the hardware installation procedures for the ECx-400 UUKL Extension Modules only.

The ECx-400 UUKL I/O Extension module is the only model to be used in the Distech Controls UUKL smoke control system. For detailed

requirements, specifications, and procedures for installing and operating UL 864 Listed equipment, you must refer to the Distech Controls

UUKL Smoke Control System Design Guide (UUKL Design Guide_UG_10_EN). Failure to meet the requirements or follow the procedures in

the Distech Controls UUKL Smoke Control System Design Guide can void the UL 864 Listing for smoke control equipment.

These I/O Extension Modules are all built on a similar platform, but have different numbers of inputs and outputs. Moreover, each individual

model has different amounts of digital and/or universal outputs. For more information on the specific layout and functionality of each I/O

Extension Module, please refer to the ECB-600 datasheets.

General Installation Requirements

For proper installation and subsequent operation of the device, pay special attention to the following recommendations:

£It is recommended that the controller(s) be kept at room temperature for at least 24 hours before installation to allow any condensation that may

have accumulated due to low temperature during shipping/storage to evaporate.

£Upon unpacking, inspect the contents of the carton for shipping damages. Do not install a damaged device.

£The device is designed to operate under environmental conditions that are specified in its datasheet.

£Ensure proper ventilation of the device and avoid areas where corroding, deteriorating or explosive vapors, fumes or gases may be present.

£Allow for proper clearance around the device’s enclosure and wiring terminals to provide easy access for hardware configuration and maintenance.

£When installing in an enclosure, select one that provides sufficient surface area to dissipate any heat generated by the device and by any other de-

vices installed in the enclosure. A metal enclosure is preferred. If necessary, provide active cooling for the enclosure.

£Orient the controller with the ventilation slots and power supply/output terminal block connectors towards the top to permit proper heat dissipation.

£The device’s plastic enclosure has a back plate that is separable from the front plate allowing the back plates (with the connectors) to be shipped di-

rectly to the installation site while all the engineering is done in the office.

£The device’s datasheet specifies the power consumption (amount of heat generated), the operating temperature range, and other environmental

conditions the device is designed to operate under.

£Ensure that all equipment is installed according to local, regional, and national regulations.

£Do not drop the device or subject it to physical shock.

£If the device is used and/or installed in a manner not specified by Distech Controls, the functionality and the protection provided by the device may

be impaired.

Installation Guide

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Any type of modification to any Distech Controls product will void the product’s warranty

Take special care to keep the front and back plate aligned when separating and joining them.

Take reasonable precautions to prevent electrostatic discharge to the device when installing, servicing or during operation. Discharge

accumulated static electricity by touching one’s hand to a well-grounded object before working with the device.

Device Markings (Symbols)

Certain markings (symbols) can be found on the controller and are defined as follows:

Symbol Description

CE marking: the device conforms to the requirements of applicable EC directives.

Products must be disposed of at the end of their useful life according to local regulations.

Read the Hardware Installation Guide for more information.

UL marking: conforms to the requirements of the UL certification.

FCC marking: This device complies with FCC rules part 15, subpart B, class B.

Warning Symbol: Significant information required. Refer to the Hardware Installation Guide.

Alternating Current

Direct Current

General Wiring Recommendations

Risk of Electric Shock: Turn off power before any kind of servicing to avoid electric shock.

£All wiring must comply with electrical wiring diagrams as well as national and local electrical codes.

£To connect the wiring to a device, use the terminal connectors. Use a small flat screwdriver to tighten the terminal connector screws once the wires

have been inserted (strip length: 0.25’’ (6mm), tightening torque 0.5 Nm).

£Comply with all network and power supply guidelines outlined in the Network Guide.

£Always use unshielded cabling with a minimum Category 5 (CAT5) cable for ethernet communications.

£Keep wiring separate according to their function and purpose to avoid any ambient noise transmission to other wires. Use strapping to keep these

wires separated. For example, keep power, hazardous voltage, SELV, PELV, network, and input wiring separate from each other.

£The board connectors accept wires or flat cables ranging from 22 to 14AWG (0.644 to 1.630mm diameter) per pole. However, power cables must be

between 18 and 14AWG (1.024 to 1.630mm diameter).

£Keep all wires away from high speed data transmission cables (for example, Ethernet, etc.).

£Do not connect the universal inputs, analog/digital outputs or common terminals to earth or chassis ground (unless stated otherwise).

£Keep input and output wiring in conduits, trays or close to the building frame if possible.

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I/O Extension Module Dimensions & Components

Figure2: Rear view of large enclosure

Figure3: Side view of large enclosure

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Mounting Instructions

The controller can be mounted on a DIN rail to speed up the installation procedure. They are also equipped with two mounting holes 0.25” x

0.165” (6.35mm x 4.191mm). The I/O Extension module can be mounted in a panel or on a wall by using appropriate screw types (use sheet metal,

thread forming, or self-tapping screws accordingly).

The controller’s mounting orientation must be horizontal with controller’s back attached to a vertical wall surface.

Figure4: Permitted Mounting Positions

DIN Rail-Mounted Installation

1. Ensure the DIN rail is properly mounted on the wall.

2. Simply clip controller onto the DIN rail.

Wall-Mounted Installation

3. Open the enclosure by separating the front and back plate while pressing on the side clips.

4. Use the back plate’s mounting holes to mark the location of any holes that need to be drilled.

5. Drill the holes.

6. Clean the surface and mount the controller using the appropriate screw types.

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Power Wiring

Voltage for UUKL models: 24VAC; ± 15%, Class 2

Voltage for all non-UUKL models: 24VAC/DC; ± 15%, Class 2

This is a Class 2 Product. Use a Class 2 transformer only (rated at 100VA or less at 24VAC) to power the

controller(s).

The Network Guide provides extensive information and requirements for powering a controller. It can be downloaded from our website. For the UUKL ex-

tension module, refer to the Distech Controls UUKL Smoke Control System Design Guide.

It is recommended to wire only one controller per 24VAC transformer.

If only one 24VAC transformer is available, determine the maximum number of controllers that can be supplied using the following method to determine

the required power transformer capacity:

£Add up the maximum power consumption of all controllers including external loads and multiply this sum by 1.3.

£If the resulting number is higher than 100VA, use multiple transformers.

Use an external fuse on the 24VAC side (secondary side) of the transformer, as shown below, to protect all controllers against power line spikes.

Maintain consistent polarity when connecting controllers and devices to the transformer. One terminal on the secondary side of the transformer must be

connected to the building’s ground. All 24V COM terminals of all controllers and peripherals throughout the LAN or the Subnetwork network must be con-

nected to the grounded transformer terminal as shown below. This ensures that the 24V COM terminals of all devices connected to any LAN or Subnet-

work in the building are at the same potential.

A mechanical ground is unacceptable: Do not use a pipe, conduit, or duct work for a ground. The power supply must

have a dedicated ground wire that comes from the main electrical supply panel.

Failure to maintain consistent polarity throughout the entire network will result in a short circuit and/or damage to the

controller!

The COM terminals of the controller are internally wired to the 24V COM terminal of the power supply. Connecting a

peripheral or another controller to the same transformer without maintaining polarity between these devices will

cause a short circuit.

Controller 2 Transformer

Controller 1

24V AC

24V COM

Fuse: 4 A Max.

Fast Acting

24 VAC

Electrical System Ground

- At Transformer Only

24V AC

24V COM

Figure5: Power wiring – AC

Controller 2

Controller 1

24V AC/DC

24V COM

Fuse: 4 A Max.

Fast Acting

Electrical System Ground

- At Power Supply Only

24V AC/DC

24V COM 24 VDC

Figure6: Power wiring – DC (for all non-UUKL model only)

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Input Wiring

Before connecting a sensor to the controller, refer to the installation guide of the equipment manufacturer.

£For a wire length less than 75’ (23m), either a shielded or unshielded 18AWG wire may be used.

£For a wire up to 200’ (61m) long, a shielded 18AWG wire is recommended.

£The shield of the wire should be grounded on the controller side only and shield length should be kept as short as possible.

Input can be connected as follows. Table 1 shows the input designation for the ECx-400 UUKL I/O Extension Module.

Sensor Input Type Input Des-

ignation

Input Connection Diagram

£Dry Contact input.

£Pulsed input

UIx

COM

To Digital

Input

Digital Dry Contact

NO-NC

£RTD input (for example, 1000Ω).

£Thermistor Input (for example, 10kΩ type II and III).

UIx

COM

To Analog-

To-Digital

Converter

RTD/

Thermistor

£Resistive input, (for example, use with 10kΩ and 100kΩ potentiome-

ters).

UIx

COM

To Analog-

To-Digital

Converter

Potentiometer

10kΩ

£0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by the

ECx-400 UUKL internal 15VDC power supply.

UIx

Sensor 0-20mA Controller

0-20mA Input

Equivalent

Circuit

UIx

COM

To Analog-

To-Digital

Converter

249Ω

Jumper

Setting

0-10V

0-20mA

+15VDC

£0 to 20mA input used with a 2-wire, 0 to 20mA sensor powered by an

external 24VDC power supply.

UIx

Sensor

0-20mA Controller

0-20mA Input

Equivalent

Circuit

UIx

COM

To Analog-

To-Digital

Converter

249Ω

Jumper

Setting

0-10V

0-20mA

24VDC

£0 to 20mA input used with a 3-wire, 0 to 20mA sensor powered by an

external 24VAC power supply.

UIx

Common

Sensor 0-20mA Controller

0-20mA Input

Equivalent

Circuit

UIx

COM

To Analog-

To-Digital

Converter

249Ω

Jumper

Setting

0-10V

0-20mA

24VAC

£0 to 20mA input used with a sensor powered by its own power source. UIx

Sensor

0-20mA Controller

0-20mA Input

Equivalent

Circuit

UIx

COM

To Analog-

To-Digital

Converter

249Ω

Jumper

Setting

0-10V

0-20mA

£Voltage input used with a 3-wire 0 to 10VDC or 0 to 5VDC sensor

UIx

Common

0-10V

Sensor

UIx

COM To Analog-

To-Digital

Converter

24VAC

£Voltage input used with a 0 to 10VDC or 0 to 5VDC sensor powered

by its own power source.

UIx

0-10V

Sensor

UIx

COM

To Analog-

To-Digital

Converter

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Sensor Input Type Input Des-

ignation

Input Connection Diagram

£Slow Pulse – Internal supply: 2-wire pulse meter, maximum input fre-

quency of 1Hz (500ms minimum ON/OFF)

£Connect the pulse input according to the figure for a pulse meter that

can pull-down a +5VDC supply with a 10KΩ pull-up resistor (internal

supply type).

UIx

Pulse Meter

Output

Controller

Pulse Input

Equivalent

Circuit

UIx or DIx

COM To Pulse Count

Accumulator

10KΩ

5VDC

Table1: Input Wiring

Output Wiring

Before connecting an output device (actuator, relay, etc.) to the controller, refer to the datasheet and installation

guide of the equipment manufacturer.

£For a wire length less than 75’ (23m) long, either a shielded or unshielded 18AWG wire may be used.

£For a wire length up to 200’ (61m) long, a shielded 18AWG wire is recommended.

£The shield of the wire should be grounded on the controller side and the shield length should be kept as short

as possible.

Table 2 shows the output designation for ECx-400 UUKL I/O Extension Module.

Control Output Type Output

Designation

Output Connection Diagram

£Discrete 0 or 12VDC digital, Pulse, or PWM output controlling a

12VDC relay.

UOx

From

Digital

Output

12VDC Relay

UOx

COM

£Current 0 to 20mA universal output & jumper configuration UOx

0-20mA

Common

From Digital-To-

Analog Output

UOx

COM

JUMPER

SETTING

0-10V

0-20mA

£Linear 0 to 10VDC digital to analog output. UOx

0-10V

Common

From Digital-

To-Analog

Output

UOx

COM

£0 to 10VDC voltage output controlling an analog actuator that is pow-

ered by an external 24VAC power source.

UOx

0-10V

~ or +

From Digital-

To-Analog

Output

UOx

COM

Actuator

or -

24VAC

Table2: Output Wiring

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Subnet-Wiring

The subnet is used to connect a range of Allure Series Communicating Sensors:

£The Allure EC-Smart-Vue sensor is a communicating room temperature sensor with backlit display graphical menus and VAV balancing capabilities.

£The Allure EC-Smart-Comfort and Allure EC-Smart-Air Communicating Sensors are a range of communicating room temperature sensors.

Connect the Allure Series Communicating Sensor to the controller’s Subnet Port with a standard Category 5e Ethernet patch cable fitted with RJ-45 con-

nectors. Refer to the Network Guide for extensive information and requirements for the connection of the Allure Series Communicating Sensor. It con-

tains information about network topology and length, cable type, setting the Subnet ID, etc. It can be downloaded from www.distech-controls.com web-

site. See also the Hardware Installation Guide supplied with Allure Series Communicating Sensor.

If you make your own patch cable, see the Allure Series Communicating Sensor Hardware Installation Guide.

Protect the controller’s connector from being pulled on when a cable to Allure Series Communicating Sensor is

connected. Create a strain-relief by looping the cable and attaching it to a solid object with a nylon tie so that a tug on

the cable will not pull out the connector on the controller.

Communications Wiring

ECx-400 UUKL IO Extension Modules are connected to the SUBNET– and SUBNET+ terminals of the ECB-600 UUKL controller. The Network Guide

provides extensive information and requirements to implement the subnetwork for the ECx-400 UUKL I/O Extension Modules. It contains information

about network length, cable type, controller addressing, etc. See the Hardware Installation Guide supplied with the ECx-400 UUKL I/O Extension Mod-

ule. It can also be downloaded from the www.distech-controls.com website. For the UUKL extension module, refer to the Distech Controls UUKL Smoke

Control System Design Guide.

For optimal performance, use Distech Controls 24 AWG (0.65 mm) stranded, twisted pair shielded cable or refer to the Network Guide for cable specifi-

cation. For the UUKL extension module, refer to the Distech Controls UUKL Smoke Control System Design Guide. The subnetwork communication wire

is polarity sensitive and the only acceptable topology is to daisy-chain the cable from one I/O Extension Module to the next.

As shown below:

£The first and last daisy-chained subnetwork device must have its EOL resistors enabled / in-

stalled. All other devices must have their EOL resistor disabled (default factory setting).

£When the subnetwork data bus is connected to a following device, twist data bus shields to-

gether.

£Isolate all shields with electrical tape so there is no exposed metal that can touch ground or other

conductors.

£The shield of the data bus must be connected to the electrical system ground at only one point –

usually at one end of the bus as shown below.

£The I/O Extension Module and the Allure Series Communicating Sensor share the same subnet-

work.

ECB-600

ECL-600

SUBNET +

SUBNET -

SUBNET +

SUBNET -

ECx-4XX ECx-4XX

SUBNET+

SUBNET -

ECx-4XX Sub-

Network Bus

ECx-4XX Sub-

Network Bus

Shield: Isolate

with electrical

tape

ECx-4XX Sub-Network Bus

Shields: Twist together and

Isolate with electrical tape

Data Bus: Shielded

Twisted Pair Cable

Electrical

System

Ground

Figure7: Subnetwork bus shielding

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About the Subnetwork Bus

The ECB-600 UUKL controllers use the Subnetwork bus to support the ECx-400 UUKL I/O Extension Modules through the controllers Subnet+ and Sub-

net- terminals with 2-wire shielded cable.

The ECB-600 UUKL controllers also use the Subnetwork bus to support one or more Allure Series Communicating Sensor(s) using standard structural

(Cat 5e) cabling.

Subnetwork Bus Total Length

The total maximum length of all Subnetwork buses, including both the length of the Allure Series Communicating Sensor Subnetwork bus and the

ECx-400 Series Subnetwork bus is 300 m (1000 ft). The maximum length of the Allure Series Communicating Sensor Subnetwork bus is 200 m (650 ft).

The maximum length of the ECx-400 Series Subnetwork bus is 300 m (1000 ft).

Sub-Network Bus Total Length: 300 m (1 000 ft) Maximum

Sub-Network Bus: 200 m

(650 ft) Maximum

Allure EC-Smart-Vue

Sub-Network Bus: 300 m

(1 000 ft) Maximum

ECx-400

Typical Compatible

Controller Extension I/O Modules

ECx-400

Sub-Network Bus - Cat 5e Cable

with RJ-45 Connectors

Allure EC-Smart-Vue

Sub-Network Bus

ECx-400

2-Wire Shielded Cable

Figure8: Subnetwork Bus Overview Showing the Allure EC-Smart-Vue Subnetwork Bus and the ECx-400 Series Subnetwork Bus

Subnetwork Bus Topology and EOL Terminations

When ECx-400 Series I/O Extension Modules are installed with an ECB-600 or ECL-600 Series controller, only the EOL terminations of the ECB-600 /

ECL-600 controller and the last I/O Extension Module are set to ON. All other I/O Extension Modules must have their EOL terminations set to OFF.

EOL OFF

EOL ON

EOL OFF

EOL ON

Typical Compatible

Controller

ECx-4xx

I/O Extension Modules

ECx-4xx

Sub-Network Bus 2 - Wire Shielded

For Compatible Controllers:

Sub-Network EOL is set to ON

-Last daisy-chained I/O Extension Module:

EOL Jumper is ON

-All other I/O Extension Modules:

EOL Jumpers are OFF

Figure9: Setting the EOL Terminations on the Subnetwork Bus

When ECx-400 Series I/O Extension Modules are installed with an ECB-600 or ECL-600 Series controller and with Allure Series Communicating Sen-

sors, only the EOL terminations on the last I/O Extension Module and the last Allure Series Communicating Sensor are set to ON. The ECB-600 /

ECL-600 and all other I/O Extension Modules and Allure Series Communicating Sensor s must have their EOL terminations set to OFF.

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EOL OFF

EOL

OFF

EOL ON

Typical Compatible

Controller I/O Extension Modules

ECx-4xx

I/O Extension Modules 2 - Wire Shielded

- Last daisy-chained I/O Extension Module:

EOL Jumper is ON

- All other I/O Extension Modules:

EOL Jumpers are OFF

- Last daisy-chained Communicating Sensor:

EOL Jumper is ON

- All other Communicating Sensors:

EOL Jumpers are OFF

Communicating Sensor Sub-Network Bus

- Cat 5e Cable with RJ-45 Connectors

Figure10: Setting the EOL Terminations on the ECx-400 Series Subnetwork Bus when Allure EC-Smart-Vue Sensors are used

ECx-400 Series devices and Allure EC-Smart-Vue sensors are factory-set with the EOL set to OFF by default.

If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them into the terminal connectors.

For more information and detailed explanations on network topology and wire length restrictions, refer to the Network Guide, which can be downloaded

from our website

www.distech-controls.com

. For the UUKL extension module, refer to the Distech Controls UUKL Smoke Control System Design Guide.

Device Addressing

The Subnet ID Address must be set to one (1) or two (2) by setting the DIP switch located on the faceplate An example of how to set the device’s Subnet

ID Address DIP switch is shown below.

Subnet ID

Figure11: Typical I/O Extension Module DIP Switch Set to 2