EC2-391 Display Case and Coldroom Controller

Operating Instructions

GB

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 EC2-391has 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 No. 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

 

 

 

EC2-391_65136_EN_R01.doc

Replacement for 00

4 / 4

PCN: 865 022

21.09.2007

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Emerson EC2-391 user manual Alarm Codes, Visualising Data LON Monitoring Server, Neuron ID / Service PIN, Messages

EC2-391 specifications

The Emerson EC2-391 is a sophisticated and versatile control solution designed to meet the demands of modern automation and process control environments. Boasting a robust architecture, this controller is suitable for various industrial applications, including manufacturing, petrochemicals, and utilities.

One of the main features of the Emerson EC2-391 is its modular design, allowing for easy scalability and flexibility. Users can configure the system according to their specific needs by adding or removing modules. This modularity accommodates a wide range of I/O options, ensuring compatibility with diverse field devices and integration into existing systems.

Another significant characteristic is the controller's high processing power. The EC2-391 utilizes advanced processing technology that enables real-time data handling and fast decision-making. This performance is crucial for systems requiring rapid response times, such as safety-critical operations and complex process environments.

The EC2-391 is equipped with sophisticated communication protocols, such as Modbus, EtherNet/IP, and others, ensuring seamless integration with various networks and devices. This makes it easier to establish connectivity within industrial ecosystems, facilitating data exchange between different systems and improving overall operational efficiency.

In addition to strong communication capabilities, the Emerson EC2-391 features advanced diagnostic functions. These functionalities allow for continuous monitoring of system performance, identifying potential issues before they escalate into failures. Operators benefit from enhanced visibility into their processes, enabling proactive maintenance strategies and reducing downtime.

Another noteworthy technology in the EC2-391 is its user-friendly interface. The controller supports intuitive setup and configuration, which simplifies the deployment process. The interface provides easy access to system parameters, trends, and alerts, aiding operators in effective management and optimization of processes.

Security is a critical focus in modern industrial control systems, and the Emerson EC2-391 incorporates various security features. These include user authentication, encrypted communication, and access control measures that safeguard against unauthorized access and cyber threats.

In summary, the Emerson EC2-391 is an advanced control solution characterized by modularity, high processing power, robust communication capabilities, advanced diagnostics, user-friendly interface, and strong security features. Its ability to adapt to various industrial applications makes it a formidable choice for companies seeking to enhance their automation strategies and improve operational efficiency.