Emerson EC3-X32 - User Manual

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Operating instruction

EC3-X32 Superheat Controller with TCP/IP

communication capability

Emerson Climate Technologies GmbH www.emersonclimate.eu

Am Borsigturm 31 I 13507 Berlin I Germany Date: 03.04.2017 EC3-X32_OI_ML_R13_865008.docx

General information:

EC3-X32 is the superheat controller with TCP/IP connection for stepper motor driven

EMERSON Electrical Control Valves EX4...EX8 and FX5…FX9.

Safety instructions:

• Read operating instructions thoroughly. Failure to comply can result in device

failure, system damage or personal injury.

• According to EN 13313 it is intended for use by persons having the

appropriate knowledge and skill.

• Do not exceed the specified maximum ratings for pressure, temperature,

voltage and current.

• Before installation or service disconnect all voltages from system and device.

• Do not operate system before all cable connections are completed.

• Entire electrical connections have to comply with local regulations.

Note: The EC3-X32 series contains a VRLA battery = valve regulated rechargeable

lead-acid battery. The battery must NOT be disposed of with other commercial waste.

Instead, it is the user’s responsibility to pass it to a designated collection point for the

safe recycling of batteries (harmonized directive 2012/19/EU). For further

information contact your local environmental recycling center.

Mounting position:

The EC3-X32 is designed to be mounted onto a standard DIN rail. Mounting

position: on vertical walls, with stepper motor connector on top side only.

Mounting of ECD-002:

• ECD-002 can be installed at any time also during operation.

• ECD-002 can be mounted in panels with 71x29

mm cutout.

• Push controller into panel cut-out.(1)

• Make sure that mounting lugs are flush with

outside of controller housing

• Insert Allen key into front panel holes and turn

clockwise. Mounting lugs will turn and gradually

move towards panel (2)

•

Turn Allen key until mounting lug barely touches

panel. Then move other mounting lug to the same

position (3)

• Tighten both sides very carefully until keypad is

secured. Do not over tighten as mounting lugs

will break easily.

Electrical Installation:

• Refer to the electrical wiring diagram for electrical connections.

• Do not apply voltage to the controller before completion of wiring.

• Ground the metal housing with a 6.3 mm spade connector.

• Keep controller and sensor wiring well separated from mains wiring. Minimum

recommended distance 30 mm.

• Use a class II category transformer for 24VAC power supply. Do not ground the

24VAC lines. We recommend using individual transformers for EC3 controller(s)

and for 3

party controllers to avoid possible interference or grounding problems

in the power supply. Connecting any EC3 inputs to mains voltage will permanently

damage the EC3.

• The use of the relay is essential to protect the system in case of power failure if the

communications interface or the ECD-002 are not utilized.

• If the output relay is not utilized, the user must ensure appropriate safety pre-

cautions are in place to protect the system against damage caused by a power

failure.

• In order to provide system protection in the event of power loss, it is recommended

to change the battery annually.

Digital input status is dependent to operation of compressor/thermostat

Commander

Operating condition

Digital input (I)

Compressor

Compressor starts

Closed / 24 V (Start)

Compressor stops

Open / 0 V (Stop)

Thermostat

Demand (compressor must be ON)

Closed / 24 V (Start)

No demand

Open / 0 V (Stop)

Wiring:

A: White wire B: Black wire C: Blue wire D: Brown wire

E: M12 Plug cable assembly EXV-Mxx for connection to EX4…EX8 and

FX5…FX9.

G: Remote control panel, system controller.

H: Alarm relay, dry contact. Relay coil is not energized at alarm or power off.

I: Digital input (0V/open = Stop; 24V/closed = Start)

J: Transformer Class II, 24VAC secondary / 25VA

K: Third party controller (can use the analog output signal from EC3)

O: Pump down relay, dry contact. Relay is energized during normal operation.

Preparation for Start-up:

• Vacuum the entire refrigeration system.

• Note: EMERSON Electrical Control Valves EX4…EX8 and FX5…FX9 are

delivered at half open position. Do not charge system before closure of valve.

• Apply supply voltage 24V to EC3 while the digital input is 0V (open). The valve

will be driven to close position.

• After closure of valve, start to charge the system with refrigerant.

• Start the system and check the superheat and operating conditions.

Main Page

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Summary

General Information and Safety

General Information

EC3-X32 is a superheat controller with TCP/IP for stepper motor driven EMERSON Electrical Control Valves.

Safety Instructions

Read instructions thoroughly. Comply with local regulations. Do not exceed maximum ratings.

Mounting Position and ECD-002 Mounting

EC3-X32 mounts on DIN rail vertically. ECD-002 mounts in panels with 71x29 mm cutout.

Electrical Installation Notes

Refer to wiring diagram. Ground metal housing. Separate controller wiring from mains wiring.

Preparation for Start-up

Vacuum system. Apply 24V to EC3 with digital input at 0V to close valve before charging.

Parameter Modification and Special Functions

Procedure for Parameter Modification

Access parameters via keypad, protected by password. Modify values using arrow keys and SEL.

Special Functions

Activate special functions like reset to factory settings or display TCP/IP address.

Connectivity and Data Visualization

Connecting to Network or PC

Connect via ECC-Nxx or CAT5 cable to network/router or PC using crossover cable.

Setting and Visualizing Data via WebPages

Access WebPages via browser for parameter lists and live graphical data.

Error Handling and Troubleshooting

Error;Alarm Handling

Details on alarm codes, related parameters, relay action, valve status, and required actions.

Checking System Operating Conditions

Use keypad/display for temporary value display. Notes on alarm conditions.

Service and Troubleshooting Guide

Troubleshooting symptoms, causes, and actions for superheat, valve operation, and synchronization.

Technical Data and Dimensions

Technical Data Specifications

Details power supply, consumption, connections, inputs, outputs, and operating ranges.

Device Dimensions

Provides physical dimensions for the EC3-X32 controller and the ECD-002 display unit.