Emerson Process Management EC2-352 - Manual (Page 4)

EC2-352_65117_EN_R05.doc Replacement for Rev.:04 4 / 4 PCN : 864 925 16.09.2009
EC2-352 Display Case and Coldroom Controller
Operating Instructions
GB
Formula for Mean Factors A0, r8, r9
Temperature calculation by the following formula:
Temperature = Air
in
* (1 - Mean Factor / 100) + Air
out
* 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 Pressure 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)
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. This function is action only when using SNMP protocol
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
dd Defrost drain delay
dI Defrost injection delay
du Defrost start-up delay
Cn Cleaning
CL
Alarms are cleared
Visualising Data : WebPages
A TCP/IP Controller-Readme file is available on the www.emersonclimate.eu website
to provide detailed information about TCP/IP Ethernet connectivity. Please refer to this
file if you need information beyond the contents of this instruction sheet.
The EC2-352 has a TCP/IP Ethernet communication interface enabling the
controller to be directly connected to a PC or network via the standard Ethernet
port. The EC2-352 controller has embedded WebPages to enable the user to easily
visualise the parameter lists using real text labels.
No special software or hardware is required.
Connect the EC2-352 using the optional ECX-N60 cable assembly to a network or
hub that enables the controller to receive a dynamic TCP/IP address. If a DHCP
server is not available, the controller can be connected to a computer using a
crossover cable plugged directly into the Ethernet port. In this case, the TCP/IP
address of the computer must be manually modified to be compatible with the
default address of the controller. Refer to the TCP/IP Controller-Readme file for
more details.
Open the Internet browser program on the computer and enter the default TCP/IP
address of the controller into the address line of the Internet browser: 192.168.1.101
or the dynamic address from the DHCP server. Refer to the TCP/IP Controller-
Readme file if a specific port is required.
After a few moments, the default monitoring page should be displayed. If the
browser does not open the default page or display active data, the user should check
the Internet browser “Option” configuration. Refer to the TCP/IP Controller-
Readme file.
The Monitoring and Alarm WebPages are read only and therefore it is not
necessary to enter a username or password. A username and password will be
requested upon the initial request to any of the other WebPages. The factory default
settings are:
Username: EmersonID Password: 12
The default settings may be modified in the Display configuration page.
Press the tabs at the top of the Monitoring page with a left click of the mouse button
to enter the respective Webpage.
The parameters will be visualised in real text together with the program code as
defined in the parameter list below.
After the parameters have been modified, the complete list of settings can be saved
to the memory of the computer and used later to upload into another controller.
This can save a considerable amount of time when using multiple controllers and
over a period of time, a library can be created containing the parameter lists for
equipment for different applications.
It is also possible to display live graphical data from the controller. In addition, a
permanent 30 days log file containing the control temperature at 15 minutes
intervals is stored in the non-volatile memory to be later transferred using FTP to
the computer. The log file can be imported into a standard spreadsheet program
such as Excel. Refer to the TCP/IP Controller-Readme file for a complete
description of the features available for the TCP/IP series of controllers.
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