Alarm Codes, Neuron ID / Service PIN, Messages

EC2-311 Display Case and Coldroom Controller

Operating Instructions

Formula for Mean Factors A0, r8, r9 Temperature calculation by the following formula:

Temperature = Airin * (1 - Mean Factor / 100) + Airout * Mean Factor / 100

Examples:
Mean factor = 0	,		Temperature = Air in
Mean factor = 100,		Temperature = Air out
Mean factor = 50		,	Temperature = Average between Air-in and Air-out

Alarm Codes

E0 Coil in sensor alarm

E1 Coil out sensor alarm

E2 Air-in sensor alarm This Alarm Code is inhibited if no air-in sensor used (A0, r8 and r9 = 100)

E3 Air-out sensor alarm This Alarm Code is inhibited if no air-out sensor used (A0, r8 and r9 = 0) and fin sensor installed (d2 = 1)

E4 Fin sensor alarm This Alarm Code is inhibited if no fin sensor used (d2 = 0) Explanations for E0 … E4 Alarms: No sensor connected, or the sensor and/or the sensor cable is broken or short-circuited.

Er Data error display - out of range

Data send to the display is out of range.

AH High temperature alarm

AL Low temperature alarm

AE Thermostat emergency operation

Air sensor failure, system is in continuous cooling mode

AF Valve Status

Valve closed due to compressor safety loop active

Ao Superheat, emergency operation

Sensor(s) failure

Ar No refrigerant flow detected

No refrigerant flow was detected

Au Valve open 100% for more than 10 minutes

dt Forced defrost termination (time or temperature) Ft Forced fan startup (time or temperature)

Visualising Data: LON Monitoring Server

The EC2-311has a LON communication interface enabling the controller to be directly connected to a Monitoring Server. It can be connected by using the optional cable assembly to a LON network (ECC-014, order nr. 804 381, with RJ45 to open, cable length 3m).

Neuron ID / Service PIN:

The service pin is available on the display. It is used to identify the controller in a

LON network. Press the button for app. 1 second to send the Neuron ID. The LED in the left upper corner will indicate the transmission of the Neuron ID.

The default settings may be modified remotely from the Monitoring Server via the LON network. Consult the Monitoring Server user manual for more information.

It is also possible to display live graphical data on the server or to log data containing the control temperature at defined intervals.

Messages

---No data to display

The display will show an “---” at node start up and when no data is send to the display.

In Reset to default values activated

The display will show an “In” when the factory default configuration data set is initialized.

Id Wink request received

The display will show a flashing “Id” when the wink request was received. The flashing “Id” will be shown on the display until the service button will be pressed, or a 30 min delay timer will expire or a second wink request is received.

OF Node is offline

The node is offline and no application is running. This is the result of a network management command and will happen for example during node installation.

dS Defrost standby dP Pump down dF Defrost cycle

ddDefrost drain delay

dI Defrost injection delay du Defrost start-up delay Cn Cleaning

CL Alarms are cleared

Emerson Electric GmbH & Co OHG is not to be held responsible for erroneous literature regarding capacities, dimensions, applications, etc. stated herein. Products, specifications and data in this literature are subject to change without notice. The information given herein is based on technical data and tests which EMERSON believes to be reliable and which are in compliance with technical

knowledge of today. It is intended only for use by persons having the appropriate technical knowledge and skills, at their own discretion and risk. Since conditions of use are outside of EMERSON’s control we cannot assume any liability for results obtained or damages occurred due to improper application.

This document replaces all former versions

Emerson Electric GmbH & Co OHG - Postfach 1251 - Heerstraße 111 - D-71332 Waiblingen -		Germany	- Phone .49-(0)7151-509-0 - Fax .49-(0)7151-509-200
	www.emersonclimate.eu
EC2-311_65081_EN_R08.doc	Replacement for Rev.:06	4 / 4	PCN: 864 911 20.03.2008

EC2-311 specifications

The Emerson EC2-311 is a sophisticated control solution designed for industrial automation and process management. Renowned for its reliability and performance, this controller is an ideal choice for various applications, including manufacturing, energy, and transportation. One of the EC2-311’s primary features is its advanced processing capabilities. Equipped with a powerful CPU, it offers rapid data processing and response times, which are crucial for maintaining operational efficiency in dynamic industrial environments.

A key technology integrated into the EC2-311 is its embedded communication protocols. It supports multiple communication standards, including MODBUS, Ethernet/IP, and OPC UA, providing seamless integration with various devices and systems. This versatility not only enhances connectivity but also allows plant operators to monitor and control processes from remote locations, which is vital in today's global industrial landscape.

The EC2-311 also boasts an intuitive user interface. Its graphical user interface (GUI) facilitates easy navigation and real-time monitoring of system parameters. Users can customize dashboards to display critical data, making it easier to analyze trends and make informed decisions quickly. This feature enhances usability and reduces training time for personnel.

In terms of safety and reliability, the EC2-311 is built to withstand harsh industrial conditions. It is designed with robust housing and components that protect against environmental factors such as dust, moisture, and temperature variations. Additionally, it incorporates built-in fail-safes and redundancy features that ensure continuous operation, minimizing downtime and enhancing overall system reliability.

Another notable characteristic is its scalability. The EC2-311 can easily adapt to changes in production requirements, making it suitable for both small-scale operations and large manufacturing facilities. As businesses grow, the controller can be upgraded or expanded to accommodate more complex processes without requiring a complete system overhaul.

In summary, the Emerson EC2-311 stands out for its advanced processing capabilities, flexible communication options, user-friendly interface, durability, and scalability. With these features, it is well-equipped to meet the demands of modern industrial operations, ensuring efficiency, safety, and reliability in every application.