Emerson EC3-D72 Instruction Sheet

2
PREPARATION FOR START-UP
• Vacuumtheentirerefrigerationcircuit.
WARNING: Electrical Control Valves EX4...EX6 are delivered at half open
position. Do not charge system before closure of valve.
• Applysupplyvoltage24VtoEC3whilethecoolingdemanddigitalinput
is 0V (open). The valve will be driven to close position.
• Afterclosureofvalve,starttochargethesystemwithrefrigerant.
POSSIBILITIES OF CONNECTING EC3-D72 TO A NETWORK OR PC
ATCP/IPControllerReadmeleisavailableonthewww.emersonclimate.
eu website to provide detailed information about TCP/IP Ethernet connec-
tivity.Pleaserefertothisleifyouneedinformationbeyondthecontents
of this instruction sheet.
1) Connect the EC3-D72 using the optional ECC-N30 cable assembly or
astandardCAT5networkcablewithRJ45plugsassemblytoanetwork
or router that enables the controller to receive a dynamic TCP/IP ad-
dress or
2) Connect the EC3-D72 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modiedtobecompatiblewiththedefault
addressofthecontroller.RefertotheTCP/IPController-Readmele
for more details.
SETTING AND VISUALIZING DATA: WEBPAGES (RECOMMENDED METHOD)
Important: Make sure that cooling demand input is 0V (open). Turn the
power supply ON.
Fourparametersi.e.refrigeranttype(u0),pressuresensortype(uP),
valve type (ut) and control mode can be set only when cooling demand
digital input is open (0V) and the power supply is ON (24V). This feature is
for added safety to prevent accidental damage of compressors and other
systemcomponents.Allotherparameterscanbemodiedatanytime.
The EC3-D72 has a TCP/IP Ethernet communication interface enabling
the controller to be directly connected to a network or a PC via the stan-
dard Ethernet port. The EC3-D72 controller has embedded WebPages to
enable the user to visualise the parameter lists using real text labels.
To view WebPages on the PC, a standard WebBrowser like Internet Ex-
plorer®orMozillaFirefoxandJREJavaRuntimeEnvironmentisneeded.
JREcanbedownloadedatnochargefromthewww.java.comwebsite.
Open the Internet browser program on the computer and, if EC3-D72 is
connected directly to PC with a crossover cable enter the default TCP/
IP address of the controller (192.168.1.101) into the address line, or the
dynamicaddressfromtheDHCPserverfromnetwork/Router.Refertothe
TCP/IPController-Readmeleifaspecicportisrequired.
It is possible to identify the dynamic TCP/IP address assigned by DHCP of
theRouterornetwork,refertotheTCP/IPController-Readmele.
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”conguration.Refertothe
TCP/IPController-Readmele.
System Digital 0-10V Input from
Operating Condition Inputs Third Party Controller
Comp. 1 & “Cooling demand” ECV remains closed irrespective
Comp.2 in open (0V) of voltage input value
stop mode “Comp 2 Running”
open (0V)
Comp. 1 in run “Cooling demand” ECV active
& Comp. 2 closed (24V) / Input =0V: digital valve capacity at
in stop mode “Comp 2 Running” 10% default capacity.
open (0V) When the digital comp. is in by-pass
the ECV will: Close when capacity is <70%
Be inhibited when the capacity is >70%
Comp. 1 “Cooling demand” ECV active
& Comp. 2 closed (24V) / The ECV will always modulate even
in run mode “Comp 2 Running” when the digital compressor is in
closed (24V) by-pass mode.
Comp. 1 in stop “Cooling demand” ECV remains closed irrespective of
& Comp. 2 open (0V) / voltage input value.
in run mode starts “Comp 2 Running”
closed (24V)
Digital comp. should always be regarded as base load; compressor 1
Digital input status is dependent to operation of compressor/0-10V input
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modiedontheDisplayconguration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denedintheparameterlistbelow.
Aftertheparametershavebeenmodied,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 us-
ing 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.
Superheat, evaporating pressure, coil-out temperature and evaporating
temperatureareavailableona10minutesrollingchart.RefertotheTCP/
IPController-Readmeleforacompletedescriptionofthefeaturesavail-
able for the TCP/IP series of controllers.
ALTERNATIVE PROCEDURE FOR PARAMETER MODIFICATION USING ECD-002
Note: Some of the functions/parameters (manual control and TCP/IP
conguration)cannotbemodiedwhenusingECD-002comparingtoa
set-up by PC via TCP/IP. Warning: All alarms are disabled during manual
control. We do not recommend unattended operation of system during
manual control.
Theparameterscanbeaccessedviathe4-buttonkeypad.Thecongu-
ration parameters are protected by a numerical password. The default
password is “12”.Toselecttheparameterconguration:
• PressthePRG button for more than 5 seconds
 Aashing0isdisplayed
• Pressoruntilthepasswordisdisplayed(default12).
If the password was changed, select the new password
• PressSELtoconrmpassword
• Pressortoshowthecodeoftheparameterthathastobechanged;
• PressSEL to display the selected parameter value;
• Pressortoincreaseordecreasethevalue;
• PressSELtotemporarilyconrmthenewvalueanddisplayitscode;
Repeattheprocedurefromthebeginning"press or to show..."
To exit and save the new settings:
Press PRGtoconrmthenewvaluesandexittheparameters
 modicationprocedure.
To exit without modifying any parameters:
Do not press any button for at least 60 seconds (TIME OUT).
ECD-002 DISPLAY/KEYPAD UNIT (LEDs and Button Functions)

Emerson EC3-D72 Specifications

General

Brand	Emerson
Model	EC3-D72
Category	Controller
Language	English