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EC3-D72
Operating Instruction
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Operating Instruction
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Emerson EC3-D72 Operating Instruction

Operating instruction
EC3-D7x Digital Superheat Controller
EC3-D72 with TCP/IP communication capability
Emerson Climate Technologies GmbH www.emersonclimate.eu
General information:
EC3-D72 is the superheat controller with TCP/IP connection for stepper motor driven Electrical Control Valves EX4-6 from EMERSON and is optimiz ed to oper ate with the Copeland Digital Scroll series utilizing a 0-10V input from a third-party controller. The controller synchronizes the PWM digital compressor solenoid valve with the superheat controlled by the electrical control valve; EX series. The EC3-D73 has the same functionality but can only be set-up via the ECD-002 display. It has no external communication functi onality.
Safety instruc tions:
• Read operatin g ins tructi ons th orou ghly. Failur e to com ply c an res ult 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 in stallation or service disconnect all voltages from system and device.
• Do not operate system before all cable connections are completed.
• Entire electr i c a l c on n e c t ions have to comply with local regulations. Note: The EC3 -D7x series contains a VRLA battery = valve regulated rechargeable
lead-acid battery. The batte ry m ust NOT be dis posed of w ith othe r comme rcia l was te.
Instead, it is the use r ’s r es ponsi bility t o pass it to a desig na te d col le ctio n po int f or the safe recycling of batteries (harmonized directive 2012/19/EU). For further information contact your local environmental recycling center.
Mounting position:
The EC3-D7x is designed to be mounted onto a standard DIN rail. Mounting position: on vertic al walls, with stepper motor conn ector 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 h ousing
• 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 24 VAC power supply. Do not ground the
24 VAC lines. We recommend using individual transformers for EC3 controller(s) and for 3
rd
party controllers t o avoid poss ible in terference or gr oun ding p roblems in the pow er suppl y. 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/ 0-10V input
System
Operating
condition
Digital Inputs
0-10V input from third party
controller
C1 & C2 in stop mode
“Cooling demand” open (0 V) “Comp 2 Running” open (0 V)
EXV remains cl o sed irrespec tive of voltage input value
C1 in run & C2 in stop mode
“Cooling demand” closed (24
V)
“Comp 2 Running” open (0
V)
EXV active
Input = 0V: dig. valve capacity = 10% default ca pa city. If dig. comp. is in by-pass, EXV will:
- close if capacity is <70%
- be inhibited if capacity is
>70%
C1 &
C2 in run mode
“Cooling demand” closed (24 V) “Comp 2 Running” closed (24
V)
EXV active
EXV always modulates
even when
the dig. compr. is in by-pass mode.
C1 in stop &
C2 starts run
mode
“Cooling demand” open (0 V) “Comp
2 Running” closed (24 V)
EXV remains clo sed irrespec t ive
of voltage input value
Note 1: C1 = Compressor 1, C2 = Compressor 2 Note 2: Digital comp. s ho uld always be regarded as base load compressor 1.
Wiring:
A: White wire B: Black wire C: Blue wire D: Brown wire E: M12 Plug cable assembly EXV-Mxx for connection to EX4-6 F: 24 V Triac output to PWM Digital Scroll valve G: Remote control panel, system controll er. H: Alarm relay, dry contact. Relay coil is not energized at alarm or power off. I: Digital input “Cooling demand” (0 V/open = Stop; 24 V/closed = Start) J: Transformer Class II, 24 VAC secondary / 25 VA K: Third party controller (can use the analog output signal from EC3) L: Pump down relay, dry contact. Relay is energized during normal operation M: Digital input 2: “Comp 2 running”
(0 V/ open = Comp 2 stop; 24 V /closed = Comp. 2 running)
N: Discharge Temp. Sensor C opeland® NTC O: 0-10 V Digital Scroll capacity demand signal from system controller P: ECN-N60 Temperature sens o r
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Operating instruction
EC3-D7x Digital Superheat Controller
EC3-D72 with TCP/IP communication capability
Emerson Climate Technologies GmbH www.emersonclimate.eu
Preparation for Start-up:
• Vacuum the entire refrigeration system.
• Note: EMERSON Electrical Contr ol Valves EX4-6 a re delivered at half open
position. Do not char ge syst em before closure of valve.
• Apply supply voltage 24 V to EC3 while the digital input is 0 V (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.
ECD-002 display /keypad unit: (LEDs and button functions)
Procedure for parameter modification using ECD-002:
• Note: Some of the functions/parameters (manual control and TCP/IP
configuration) cannot be modified 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 configuration
parameters are protected by a numerical password. The default password is “12”. To select the parameter configuration:
• Press the PRG button for more than 5 seconds, a flashing “0” is displayed
• Press or until “12” is displayed (password)
• Press SEL to confirm password
• Press or to show th e code of the parameter that must be changed;
• Press SEL to displa y the selected par ameter value;
• Press or to increa se or decrease the value;
• Press SEL to temporarily confirm 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 confirm the new values and exit
the parameters modification procedure.
• To exit without modifying any parameters: Do not press any button for at least
60 seconds (TIME OUT).
Special Functions :
The Special F un c t ions can be activated by:
• Press and together for more th an 5 seconds, a flashing “0” is displayed.
• Press or until the passw ord is displayed (default = “12”).
If password was changed, select the new password.
• Press SEL to confirm password
A “0” is displayed and the Special Function mode is activated.
• Press or to select the function. The number of special functions is dynamic
and controller dependent. See list below.
0: Reset controller to factory settings (this action is possible only when digital input is 0 V i.e. open). 1: Displays the current TCP/IP address. 2: Assign temporary 192.168.1.101 as TCP/IP address if EC3-D72x has different address.
• Press SEL to activate the func tion without leaving the speci al function mode.
• Press PRG to activate the function and leave the special function mo de.
Main parameters: (must be checked and modified if necessary)
Code Parameter description and choices Min Max
Factory
setting
Field
setting
H5
Password
1
199
12 u0
System refrigerant
0
15 1
0 = R22 1 = R134a 2 = R507 3 = R404A 4 = R407C
5 = R410A 6 = R124 7 = R744 (subcritical applicatio n) 8 = R407A 9 = R407F 10 = R32* 11 = R448 A
12 = R449A 13 = R450A 14 = R513A 15 = R1234ze
uP
Installed pressure sensor type
0
2 0
0 = PT5-07x (for R22 / R134a / R507 / R404A / R407A / R407C /
R407F / R124 / R448 A /R449A / R450A / R513A / R1234ze) 1 = PT5-18x (for R410A/ R32)
2 = PT5-30x (for R410A / R744 / R32)
ut
Installed valve type
1 3 2
1 = EX4 2 = EX5 3 = EX6
uu
Start valve opening (%)
10
100
50
u9
Start opening duration (second)
1
30 5
uL
Low superheat alarm function
0 2 1
0 = disable (for flooded evaporator)
1 = enable aut o reset 2 = enable manual reset
Cut-out at 0.5K (if it maintains 1 min.); Cut-in immediately at 3K
u5
Superheat set-point (K)
If uL enabled (auto or manual)
If uL disabled
3
0.5
30
30
6
6
u2
MOP function
0 1 1
0 = disable 1 = enable
u3
MOP set-point (°C) saturation temper atur e
* * **
**) Factory setting is according to selected refrigerant (u0):
+13°C - R22 +15°C - R134a +7°C - R507 +7°C - R404A +15°C - R407C +15°C - R410A +50°C - R124 -5°C - R744 +10°C - R407A +10°C - R407F +10°C - R32 +12°C - R448A +12°C - R449A +19°C - R450A +13°C - R513A +24°C - R1234ze
*) Min. and Max . setting values are dependent to selected type o f
refrigerant
┌┘
5
Units conversion
0 1 0
0 = °C, K, bar 1 = °F, R, psig (Psig values are divided by 10. Example: Display 12.5 is 125 psig)
┌┘
1
Value to show
0 5 0
0 = Measured superheat (K) 1 = Measured evaporating pressure, (bar);
2 = Valve opening (%) 3 = Measured coil-out temperatur e (°C) 4 = Calculated evaporating temperature (°C) from the pressure
5 = Compressor capacity in %
u4
Superheat control mode
0 1 0
0 = Standard, 1 = Slow,
uH
High superheat alarm function 0 = disable, 1 = enable auto reset
1
uA
High superheat alarm setpoint
16
40
30
ud
High superheat alarm delay, min.
1
15 3
P2
Freeze prot ection cut-out, °C
-40
40 0
P3
Freeze prot ection cut-in, °C
-37
43 3
P4
Freeze protection alarm function
0 = disable, 1 = enable auto-reset,
2 = enable manual reset)
0 2 0
P5
Freeze protection alarm delay, sec.
5
199
30
P6
Pump-down function (0 = disable, 1 = enable auto-reset)
0 1 0
P7
Pump-down cut-out, barg
-0,5
18
0.5 P8
Pump-down time delay, sec.
0
199
30
P9
Low pressure alarm function
(0 = disable, 1 = en able auto-reset,
2 = enable manu al reset)
0 2 0
PA
Low pressure alarm cut-out, barg
-0,8
17,7 0
Pb
Low pressure a larm delay, sec .
5
199 5
Pd
Low pressure alarm cut-in, barg
-0,5
18
0.3 L2
Output logic
0 3 1
0: Alarm = normal, pump down. = normal
1: Alarm = inverse, pump down. = normal 2: Alarm = normal, pump down. = inverse
3: Alarm = inverse, pump down. = in verse
Blinking: valve is closing
ON: valve is fully close
Blinking: valve is opening
ON: valve is fully open
ON: demand
OFF: no demand Blinking: pump
down
ON: alarm OFF: no alarm
Parameters setting/saving
Selecting/confirming
Next param eter/ value (higher)
Next param eter/ value (lower)
Prg&Sel (5 sec)
Manual reset f o r
blinking alarm codes
Operating instruction
EC3-D7x Digital Superheat Controller
EC3-D72 with TCP/IP communication capability
Emerson Climate Technologies GmbH www.emersonclimate.eu
Code Parameter description and choices Min Max
Factory
setting
Field
setting
b1
Battery error management, when battery is defective, see below
0 3 2
value
Alarm
display
Alarm relay
Valve
Reset possibility after
recovery/replacement
0 - - Regulating
-
1 Ab - Regulating
-
2 Ab
Signaling
Fully close
Auto
3 Ab
(blinking)
Signaling
Fully close
Manual
When setting b1 to option 0 or 1, the user must ensure appropriate safety precautions are in pla ce to protect the s yst em against damage caused by a power failure.
/6
Show decimal point; 0=yes, 1 = no
0 1 0 A6
Maximum dis charge temperat ure; °C
100
140
130 A7
Discharge temp. alarm de l ay; sec.
0
199
30
F2
Minimum capacity; %
10
100
10 F3
Maximum capacity; %
10
100
100
F6
Scroll Valve, PWM cycle time; sec.
10
20
20
t3
Monitor discharge temperature sensor 0 = no, 1 = Yes
0 1 0
ru
0-10V input filtering; 0 = off, 1 = on
0 1
*) Notes for R32: R32 is classified as low flammab le refrigeran t in Europe. EC3­D7x is designed under consideration of European safety standards and directives for none flammable refrigeran ts. The u se of EC3-D7x with R32 is for systems/regions which it does not require consideration of additional safety standards as for flammable refrigerant.
After selecting the parameters the EC3-D7x is fully functio nal w itho ut c on ne cte d PC or keypad/display unit ECD-002.
Control (valve) start-up behavior: (Par ameter uu and u9)
EX4/5/6 ≤ 1.5 seconds
Pump down f unction: (if P6=1 and L2=1)
Digital input status
Alarm condition
Pump down relay
24 V (ON)
NO
Activate
0 V (OFF)
NO
Deactivat e when pressure drops below P7 and after elapsed time P8
0 V or 24V
YES
Deactivate
Possibilities of connecting EC3-D72 to a network or PC:
• 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.
• Connect t he E C3-D72 using the optional ECC-Nxx cable assembly or a standard
CAT5 netw or k cabl e with RJ45 pl ugs asse m bly t o a ne tw or k or route r that e na bl e s the controller to receive a dynamic TCP/IP address or
• 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 modified to be compatible with the default address of the controller. Refer to the TCP/IP Controller-Readme file for more details.
Setting and visualizing Data: WebPages (recommended method)
• Make sure that digital 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 digital input is open (0V) while the power supply is O N (24 V). This feature is for added safety to prevent accidental damage of compressors and other system components. All other parameters can be modified at any time.
• The EC3-D72 has a TCP/IP Ethernet communication interface enabling the
controller t o be di rect ly conn ect ed to a net work or a P C via th e stand ard Eth ern et port. The EC3-D72 controller has embedded WebPages to enable the user to visualize the parameter lists using real t ex t labels.
• To view WebPages on the PC, a standard Web Br owser li ke Internet E xplorer ® 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 bro wser prog r a m o n the compute r 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 file if a specific 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 file.
• After a few moments, the default monitoring page should be displayed. If the
browser do es not open the defaul t pag e or display activ e data , the use r sho uld che ck 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 u pon the initi al re quest to a ny of the o ther We bPage s. The factory defaul t settings a re: Username: “EmersonID”, Password: “12”
• The default settings may be modified on the Display configuration page.
• Press the tabs at the top o f the Mon itor ing pa ge w ith a lef t clic k of the mo use butto n
to enter the respective Webp age.
• The param eters will b e visualized 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. Superhea t,
evaporating pressure, coil-out temperature and evaporating temperature are available on a 15 minutes rolli ng chart. Ref er to the TCP/IP C ontroller-Readme file for a comp lete descrip tion of the feat ures availa ble for the TCP/ IP series of controllers.
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Sec.
uu
u9
%
EC3-X3 BA.c dr
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