Carel EVD4 User manual

EVD4
Driver for electronic expansion valve
User manual

User manual

4
We wish to save you time and money!
We can assure you that the thorough reading
of this manual will guarantee correct
installation and safe use of the product
described.
INFORMATION FOR USERS ON THE CORRECT HANDLING OF WASTE ELECTRICAL AND ELECTRONIC
EQUIPMENT (WEEE)
In reference to European Community directive 2002/96/EC issued on 27 January 2003 and the related
national legislation, please note that:
1. WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of
separately;
2. the public or private waste collection systems defined by local legislation must be used. In addition,
the equipment can be returned to the distributor at the end of its working life when buying new
equipment.
3. the equipment may contain hazardous substances: the improper use or incorrect disposal of such
may have negative effects on human health and on the environment;
4. the symbol (crossed-out wheeled bin) shown on the product or on the packaging and on the
instruction sheet indicates that the equipment has been introduced onto the market after 13 August
2005 and that it must be disposed of separately;
5. in the event of illegal disposal of electrical and electronic waste, the penalties are specified by local
waste disposal legislation.
IMPORTANT WARNINGS
CAREL bases the development of its products on several years’ experience in the HVAC field, on
continuous investment in technological innovation of the product, on rigorous quality procedures and
processes with in-circuit and function tests on 100% of its production, on the most innovative production
technologies available on the market. CAREL and its branch offices/affiliates do not guarantee, in any
case, that all the aspects of the product and the software included in the product will respond to the
demands of the final application, even if the product is built according to state-of-the-art techniques.
The client (builder, developer or installer of the final equipment) assumes every responsibility and risk
relating to the configuration of the product in order to reach the expected results in relation to the
specific final installation and/or equipment. CAREL in this case, through specific agreements, can
intervene as consultant for the positive result of the final start-up machine/application, but in no case
can it be held responsible for the positive working of the final equipment/apparatus.
The CAREL product is a state-of-the-art product, whose operation is specified in the technical
documentation supplied with the product or can be downloaded, even prior to purchase, from the
website www.carel.com.
Each CAREL product, in relation to its advanced technological level, needs a phase of definition/
configuration / programming / commissioning so that it can function at its best for the specific
application. The lack of such phase of study, as indicated in the manual, can cause the final product to
malfunction of which CAREL can not be held responsible.
Only qualified personnel can install or carry out technical assistance interventions on the product.
The final client must use the product only in the manner described in the documentation related to the
product itself.
Without excluding proper compliance with further warnings present in the manual, it is stressed that in
any case it is necessary, for each Product of CAREL:
• To avoid getting the electrical circuits wet. Rain, humidity and all types of liquids or condensation
contain corrosive mineral substances that can damage the electrical circuits. In any case, the product
should be used and stored in environments that respect the range of temperature and humidity
specified in the manual.
• Do not install the device in a particularly hot environment. Temperatures that are too high can
shorten the duration of the electronic devices, damaging them and distorting or melting the parts in
plastic. In any case, the product should be used and stored in environments that respect the range of
temperature and humidity specified in the manual.
• Do not try to open the device in any way different than that indicated in the manual.
• Do not drop, hit or shake the device, because the internal circuits and mechanisms could suffer
irreparable damage.
• Do not use corrosive chemical products, aggressive solvents or detergents to clean the device.
• Do not use the product in application environments different than those specified in the technical manual.
All the above reported suggestions are valid also for the control, serial unit, programming key or never-
theless for any other accessory in the product portfolio of CAREL. CAREL adopts a policy of continuous
development. Therefore, CAREL reserves the right to carry out modifications and improvements on any
product described in the present document without prior notice. The technical data in the manual can
undergo modifications without obligation to notice. The liability of CAREL in relation to its own product
is regulated by CAREL’s general contract conditions edited on the website www.carel.com and/or by
specific agreements with clients; in particular, within the criteria consented by the applicable norm, in no
way will CAREL, its employees or its branch offices/affiliates be responsible for possible lack of earnings
or sales, loss of data and information, cost of substitute goods or services, damage to things or persons,
work interruptions, or possible direct, indirect, incidental, patrimonial, of coverage, punitive, special or
consequential in any way caused damages, be they contractual, out-of-contract, or due to negligence or
other responsibility originating from the installation, use or inability of use of the product, even if CAREL
or its branch offices/affiliates have been warned of the possibility of damage.

5
Content
1. INTRODUCTION 7
1.1 Codes and accessories..........................................................................................................................7
1.2 Connecting to the main serial port....................................................................................................8
1.3 Operation of the service serial port...................................................................................................8
1.4 Setting the network address................................................................................................................8
2.1 Power supply, sensors, digital I/O .....................................................................................................9
2.2 Main serial port for connection to tLAN/pLAN/RS485 (supervisor / Modbus®).......... 9
2.3 Stepper motorr ......................................................................................................................................9
2. INPUTS AND OUTPUTS 9
2.4 Relay.........................................................................................................................................................10
2.5 Service serial port..................................................................................................................................10
3.1 Application with µC2 and µC2SE (EVD000*40* and EVD000*43*) via tLAN ..........................11
3. EVD4APPLICATIONS: CONNECTIONS, LIST OF PARAMETERS AND OPERATING
MODES 11
3.2 Application with pCO (EVD000*40* and EVD000*43*) via tLAN...................................................14
3.3 Application as positioner (EVD000*40* and EVD000*43*) .......................................................17
3.4 Application with pCO (EVD000041* and EVD000044*) via pLAN .......................................................19
3.5 Application with supervisor (EVD000*42* and EVD000*45*) via RS485................................22
3.6 Application with Modbus®protocoll (EVD0001460) via RS485 ......................................24
4. TECHNICAL AND CONSTRUCTIONAL SPECIFICATIONS 30
5. TROUBLESHOOTING 31
APPENDIX I. INSTALLING AND USING THE EVD4-UI PROGRAM 32
I.I Installation.................................................................................................................................................32
I.II Preparing the connections....................................................................................................................32
I.III Preparing the user interface ...............................................................................................................32
I.IV Saving the data ......................................................................................................................................32
I.V Loading the data.....................................................................................................................................33
I.VI Modifying the parameters...................................................................................................................33
I.VII Configurations available.....................................................................................................................33
APPENDIX II. DESCRIPTION OF THE PARAMETERS 34
APPENDIX III. PARAMETER SETTINGS 40
APPENDIX IV. SUMMARY OF PID CONTROL 41
IV.I Symbols used.........................................................................................................................................41
IV.II Pid control law......................................................................................................................................41
IV.III Proportional action.............................................................................................................................41
IV.IV Integral action......................................................................................................................................42
IV.V Derivative action...................................................................................................................................43

6

7
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
1. INTRODUCTION
EVD4is an evolved PID controller complete with driver for stepper motors specially designed for the ma-
nagement of electronic expansion valves in refrigerant circuits. It features sophisticated control functions
and can be used in many operating configurations in refrigeration and air-conditioning systems, such as:
- PID control of superheat with protection and safety compensation functions;
- PID control on one measurement (pressure or temperature);
- positioner for electronic expansion valves controlled by 4 to 20 mA or 0 to 10 Volt signal.
The device is configured and the address set via serial interface and the user interface software is stored
in non-volatile memory.
1.1 Codes and accessories
Code Description
EVD000040* Controller with tLAN serial already configured for operation with µC2and µC2SE (address 2) universal for EEV1 valves
EVD000041* Controller with RS485 serial already configured for operation with pCO in pLAN (address 30) universal for EEV1 valves
EVD000042* Controller with RS485 serial already configured for operation with supervisor (address 250) universal for EEV1 valves
EVD000043* Controller with tLAN serial already configured for operation with µChiller (address 2) for CAREL valves
EVD000044* Controller with RS485 serial already configured for operation with pCO via pLAN (address 30) for CAREL valves
EVD000045* Controller with RS485 serial already configured for operation with supervisor (address 250) for CAREL valves
EVD00014** EEV valve controller with spade connector(3)
EVD0001460 Controller with RS485 serial already configured for operation with Modbus®
EVD00004*1 Multiple packages of 10 pcs, without connectors
EVBAT00200 Battery charger module and step-up transformer for backup power supply
EVBAT00300 System made up of EVBAT00200 + 12 V 1.2 Ah battery + cable and connectors
EVBATBOX10 Metal battery case
CVSTDUTTL0 USB converter to connect a PC to the service serial port
CVSTD0TTL0 RS232 converter to connect a PC to the service serial port
EVDCAB0500 Package of 14 cables with terminals for MINIFIT connector, length 5 m, cross-section 1 mm2
EVDCON0001 Packaging of connectors for 10 EVD4for multiple packages of 10 pcs
(1): See the table on the corresponding instruction sheet or APPENDIX II “DESCRIPTION OF THE
PARAMETERS”, “valve type” parameter
(2): For the other types of probes, see Chap. 4 “Technical and constructional characteristics”
(3): The EVD00014** series with spade and 4-pin connector on the valve side improves performance in terms of
electromagnetic emissions if used with shielded cable and the shield is connected to the spade.
RT–RT+GNX
NOCOM
GVbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
3 4
1 2
NTC: low temperature
probes
CVSTDUTTL0: converter
E2V*: CAREL electronic expansion
valve
EVDCON0001:
10 connector kits
solenoid
valve
alarm
signal
EVDCON0001:
10 connector kits
personal computer for configuration
0 to 10 V
Probe1
Signal4
SPKT: 0 to 5 V ratiometric
probes
External controller
Probes(2)
Important
Probe3
4 to 20 mA
1
digital input
EVBAT00200
EVBAT00300
battery modules
MC2*: µC2controller
PlantVisor for
configuration
PCO*: programmable controllers
PCO*: programmable controllers
S
pGD
1
userinterface
pGD
1
userinterface
RS485
voltage-free relay output
for utilities up to 230 Vac
NB: DANFOSS, SPORLAN and ALCO
electronic expansion valves can be
connected
EVDCAB0500:
14 pre-crimped cables
EVD4 PC
EVD4service USBadapt er
EEV driv er
4
34
12
Faston connector electronic valve
(Cod. EVD00014**)
EVD****40* and EVD****43*:
tLAN version
EVD****41* and EVD****44*:
pLAN version
EVD****42* and EVD****45*:
RS485 version
EVD***1460:
Modbusversion
pGD
1
userinterface
PCO*: programmable controllers
Modbus
Fig. 1.0

8
pGD
1
userin terface
EV driver
E
2
V
TP
EV dri ver
E2V
TP
Master control
Supervisor (CAREL o Modbus)
Fig. 1.1
Fig. 1.2
Fig. 1.3
pGD
1
userin terface
EV driver
E
2
V
TP
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
1.2 Connecting to the main serial port
EVD4can operate independently (stand alone), connected to a supervisor to control the fundamental
parameters, or connected to the LAN with other CAREL controllers, according to the following diagrams:
1.2.1 TLAN connection with µC2 or µC2 SE or pCO (codes EVD000*40* and EVD000*43*)
Fig. 1.1.
1.2.2 pLAN connection with pCO (codes EVD000*41* and EVD000*44*)
Fig. 1.2.
1.2.3 Stand alone in the RS485 network with CAREL supervisor (codes EVD000*42* and
EVD000*45*) or with Modbus®supervisor (code EVD0001460)
Fig. 1.3.
1.3 Operation of the service serial port
The service serial port (par. 2.5) is used to access all the EVD4 parameters even when the instrument is
already installed and operating; to do this, the special converter is required (CVSTDUTTL0 or CVSTD0TTL0),
plus a PC with USB or RS232 serial port. “APPENDIX I - Installing and using the EVD4-UI program” describes
the installation and operation of the EVD4_UI software that is used to configure the controller.
The converter can power the logical section of the EVD4 (but not the expansion valve), and therefore this
can be configured from the PC without having to connect the instrument to the 24 Vac power supply.
1.4 Setting the network address
The EVD4operating parameters, including the network address, reside on the EEPROM; to modify the va-
lues, access the service serial port using the EVD4-UI software: connect the special converter (CVSTDUTTL0
or CVSTD0TTL0) to the service serial port (Fig. 2.8) and a PC with USB or RS232 serial port, then start the
“EVD4_U Key” connection, as described in “APPENDIX I - Installing and using the EVD4-UI Address” and set
the Net address parameter; in the box at the top right of the interface, the “Network address” item will show
the new value of the address, after having pressed the “READ” button. If not changed by the user, the Net
address parameter will have the following default values:
Net address
EVD000*40* and EVD000*43* 2
EVD000*41* and EVD000*44* 30
EVD000*42* and EVD000*45* 32
EVD0001460 1
Below is a description of the connectors supplied with the EVD000*4*0 or purchased in separately in
the EVDCON0001 kit for EVD000*4*1. The drawings represent the connectors as seen after having been
fitted on the EVD4.
Note: if the address is changed using the pLAN or Modbus®, protocol, the “Network address” item is
updated after switching the device off and on again.

9
MOLEX®MiniFit 538-39-01-2060
43
21
GND
MOLEX®Mini-Fit 538-39-01-2140
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
Fig. 2.1
Fig. 2.4
GNX RT+ RT-
PHOENIX®MC1,5/3-ST-3,81
Fig. 2.3
21
43
MOLEX®MiniFit 538-39-01-2060
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
Below is a description of the connectors supplied with the EVD00004*0 or purchased in separate
packages (EVD400CON0 for the EVD00004*1). The drawings represent the connectors as seen after
having been fitted on the EVD4.
2.1 Power supply, sensors, digital I/O
The main 14-pin MINIFIT®connector is used to connect the main and auxiliary power supply (if the
EVBAT00200/300 module is fitted), as well as the sensors, digital inputs and transistor output.
This connector accepts wires with cross-section up to 1 mm2with MOLEX®5556-T barrel.
A kit of pre-crimped 14 x 1 mm2cables, length 5 m, is available for purchase (EVDCAB0500).
line Function
G, G0 24 Vac power supply
GND Earth for all signals, in electrical contact with GND and the GNX terminal on the main serial
connector
Vbat Emergency power supply generated by the EVBAT00200 module
DI1, DI2 Digital inputs to be activated by voltage-free contact or transistor to GND, 5 V no-load and 5
mA short-circuited
Vr1, Vr2 5 V references used as power supply to the ratiometric probes
S1 Analogue input for ratiometric probe or NTC low temperature probe
S2 Analogue input for ratiometric probe, NTC high temperature probe or Pt1000
S3 Analogue input for ratiometric probe or NTC low temperature probe
S4I Analogue input for 4 to 20 mA signal
S4V Analogue input for 0 to 10 Volt signal
OC Open-collector transistor output, for up to 100 mA
Table 2.1
For the power supply in particular, observe the diagram shown:
2.2 Main serial port for connection to tLAN/pLAN/RS485 (supervisor / Modbus®)
Removable terminal for connection to the MASTER unit (µChiller, pCO) or the supervisor (PlantVisor).
line Function
GNX Signal earth, in electrical contact with GND on the I/O connector
RT+ + signal for the RS485 connection (pLAN, supervisor, Modbus®) or DATA signal for the tLAN
connection
RT– v signal for the RS485 connection (pLAN, supervisor, Modbus®)
Table 2.2
2.3 Stepper motorr
6-pin MINIFIT® connector. Accepts cables up to 1 mm2with MOLEX® 5556-T barrel.
Line Function
GND Earth electrically connected to GND on the I/O connector, and with the earth connector on the
electrical panel
1 + Phase A
2 + Phase B
3 – Phase A
4 – Phase B
Table 2.3
2. INPUTS AND OUTPUTS
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
EVD4
G B- B+
G0 OUT GND
4 A T
power supply module
EVD
12 V
1,2 Ah
0,8 A T
0,8 A T
24 Vac230 Vac
optional backup
EVBAT00200/300
do not connect if EVBAT* is fitted
Fig. 2.2
for code EVD00014**
for code EVD00004**

10
NO COM
relay
PHOENIX®GMSTB 2,5/2 ST
Fig. 2.6
Fig. 2.7
USB
convertitore /
converter
CVSTDUTTL0
A
GNX RT+ RT-
B
Fig. 2.8
Fig. 2.5
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
2.4 Relay
Plug-in terminal
line Function
COM Common
NO Normally open contact, 5 A 250 Vac resistive load; 2 A 250 Vac, inductive load (PF= 0.4)
2.5 Service serial port
Allows access to the functions of the EVD4; via PC. To access this connector:
1) Remove the cover by levering it with a screwdriver on the central notch (Fig. 2.7).
2) Locate the white 4-pin connector and insert the special converter cable (Fig. 2.8).
Connect the USB cable to the PC; if the EVD4is not powered by the 24 Vac line, it will take its power
supply from the serial converter.
Once the supervisor has been connected, start an application with the supervisor protocol at 4800 baud
on network address 1, for example via EVD4_UI (see APPENDIX I).
This serial port can be connected and disconnected without needing to remove the USB cable from
the PC.
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
3
4
1
2
Green
Yellow
Brown
White
Green
Black
Red
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00014**
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
1
2
3
4
Green
Black
Red
White
Green
Yellow
Brown
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00004**

11
Fig. 3.1
GNX RT+ RT-
PHOENIX®MC1,5/3-ST-3,81
USB
convertitore /
converter
CVSTDUTTL0
A
GNX RT+ RT-
B
Fig. 3.2
G
G0
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
EVD4
0,8 A T
24 Vac
µC2
230 Vac
Fig. 3.3
Fig. 3.4
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
Below is a description of the connections, configuration parameters, UI graphics and operating modes
of the six codes available for the EVD4 in the different applications.
3.1 Application with µC2 and µC2SE (EVD000*40* and EVD000*43*) via
tLAN
3.1.1 Connections
Communication: with reference to Fig. 3.1, connect GNX and RT+ to the µC2 unit.
Configuration: the EVD4-UI software is used to access the parameters; connect the converter
(CVSTDUTTL0 or CVSTD0TTL0) to the service serial port (Fig. 3.2).
Power supply: with reference to Fig. 3.3, connect G and G0 to the 24 Vac power supply side; to
connect an auxiliary battery see the EVD4 Instruction Sheet.
Valve: with reference to Fig. 3.4, connect the valve according to the type set for the “Valve
type” parameter.
Probes: Connect the ratiometric pressure sensors and NTC temperature sensors to S1 and
S3 respectively.
For other types of probes or connections, change the value of the “EVD probes
type” parameter and see chap. 4
WARNING: if a EVD4unit is erroneously connected to a controller with a different communication
protocol (e.g. EVD000*40* with pCO via pLAN) and is then connected to a unit with the
same protocol (e.g. EVD000*40* with pCO or µC2via tLAN), the first time that the EVD4 is
connected with the correct protocol it may take a few minutes to recognise the protocol; if
this waiting time seems excessive, disconnect power to the controller and the EVD4
(including any connections via CVSTDUTTL0 or CVSTD0TTL0 converter), and then
reconnect the devices (including any connection via CVSTDUTTL0 or CVSTD0TTL0
converter) and wait a few minutes for the connection to be restored independently. In the
event of connection to µC2, after having reconnected the devices to the power supply,
connect the EVD4to a PC and activate the EVD4_UI using the “EVD4_UI MCH2”
connection, set En. reset to default = 14797, then Reset to default = Yes (the box changes
from green to red).
3. EVD4APPLICATIONS: CONNECTIONS, LIST OF PARAMETERS AND OPERATING MODES
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
NTC -50T105 °C
S3
NTC*WF*
Temp.
GND
ratiometric +
OUT
Vr1
SPKT*R*
Press.
GND
P
S1
Key:
A Service serial port
B Main serial port
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
1
2
3
4
Green
Black
Red
White
Green
Yellow
Brown
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00004**
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
3
4
1
2
Green
Yellow
Brown
White
Green
Black
Red
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00014**

12
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
3.1.2 List of parameters
Below is the list of parameters visible on the EVD4-UI, divided into write and read; the meaning of each
parameter is described in APPENDIX II, while APPENDIX III shows a list of the values of the reference
parameters in relation to certain typical applications.
Key:
= Main parameters required to start operation;
= Secondary parameters required for optimum operation;
—= Advanced parameters.
WRITE
Mode Parameter name Description of the parameter
Mode dependent parameters (Fig. 3.5)
COOL
CH-Superheat set superheat set point in CH mode 
CH-Proportional gain PID proportional factor in CH mode 
CH-Integral time integral time for superheat control in CH mode 
CH-Low Superheat low superheat value in CH mode 
LOP Cool Mode temperature at minimum operating pressure (MOP) in CH mode 
MOP Cool Mode temperature at maximum operating pressure (MOP) in CH mode 
HEAT
HP-Superheat set superheat set point in HP mode 
HP-Proportional gain PID proportional factor in HP mode 
HP-Integral time integral time for superheat control in HP mode 
HP-Low Superheat low superheat value in HP mode 
LOP Heat Mode temperature at minimum operating pressure (LOP) in HP mode 
MOP Heat Mode temperature at maximum operating pressure (MOP) in HP mode 
DEFROST
DF-Superheat set superheat set point in DF mode 
DF-Proportional gain PID proportional factor in DF mode 
DF-Integral time integral time for superheat control in DF mode 
DF-Low Superheat low superheat value in DF mode 
LOP Defr. Mode temperature at minimum operating pressure (LOP) in DF mode 
MOP Defr. Mode temperature at maximum operating pressure (MOP) in DF mode 
COMMON
Circuit/EEV ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed 
Dynamic proportional gain attenuation coefficient with change in capacity —
SHeat dead zone dead zone for PID control —
Derivative time PID derivative time —
Low SHeat int. time integral time for low superheat control —
LOP integral time integral time for low evaporation pressure (LOP) control —
MOP integral time integral time for high evaporation pressure (MOP) control —
Hi TCond. int. time integral time for high condensing pressure control (HiTcond) —
Hi TCond. protection maximum condensing temperature —
Alarms delay Low SH low superheat alarm delay —
Alarms delay LOP low evaporation pressure (LOP) alarm delay —
Alarms delay MOP high evaporation pressure (MOP) alarm delay —
MOP startup delay MOP delay time —
Alarms delay probe error probe error alarm delay —
Global parameters (Fig. 3.5)
MODE READ ONLY, received from µC2 —
REGULATION READ ONLY, received from µC2 —
Refrigerant number indicating the type of refrigerant used l
EVD probes type number indicating the combination of sensors used to calculate the superheat —
Valve type number that defines the type of electronic valve used l
EEV mode man. enable/disable manual valve positioning —
Requested steps required motor position in manual control —
Open relay low SH enable/disable relay opening following low superheat —
Open relay MOP enable/disable relay opening following MOP —
Valve alarm enable/disable valve alarm (valve not closed at shutdown alarm) o
S1 probe limits Min value ‘zero’ scale for pressure sensor on input S1 l
S1 probe limits Max value end scale for pressure sensor on input S1 l
S2-Pt1000 calib. calibration index for PT1000 sensor —
Probes offset S1 correction of the lower limit of S1 —
Probes offset S2 correction of the lower limit of S2 —
Probes offset S3 correction of the lower limit of S3 —
Enable reset to dafault enable restore default parameters —
Reset to default confirm enable default parameters —
Standby steps number of valve standby steps —
Blocked valve check time after which, in certain conditions, the valve is considered as being blocked —
Go ahead enable restart following error —

13
Fig. 3.5
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
READ
Parameter name Description
System measurements (Fig. 3.5)
EEV opening valve opening as a %
EEV position position of the valve in steps
Act. SH set current superheat set point
Superheat superheat value measured
Ev. probe press. evaporation pressure value measured
Ev. probe sat. temp. saturated gas temperature value calculated in the evaporator
Suction temp. compressor suction temperature value measured
Cond. probe press. condensing pressure value measured, from µC2
Cond. probe sat. temp. saturated gas temperature in the condenser
Digital variables (Fig. 9)
µC2off line active when µC2is not connected to EVD4
50% capacity active when the capacity of the circuit is 50%
100% capacity active when the capacity of the circuit is 100%
alarm Low Superheat active in low superheat conditions
alarm MOP timeout active in conditions with excessive evaporation pressure
alarm LOP timeout active in conditions with excessive evaporation pressure
EEV not closed active due to failed valve closing
Low SH status active when in low superheat control status
MOP status active when in maximum evaporation pressure control status
LOP status active when in minimum evaporation pressure control status
High Tc status active when in high condensing temperature control status
alarm Eeprom error active following an EEPROM memory error
alarm probe error active following an error on the signal from the probe
3.1.3 EVD4_UI user interface
The EVD4_UI user interface is based on the CAREL supervisor protocol and is designed for the easy and
intuitive reading or configuration of the control parameters. The program can be started in different
configurations so as to display the set of parameters that is suitable for the type of installation the EVD4is used
in; to do this, make the connection using the name of the required configuration. The interface configuration
for µC2is shown in Fig. 3.5 and is activated by making the “EVD4_UI MCH2” connection.
as described in APPENDIX I “INSTALLING AND USING THE EVD4_UI PROGRAM”.
3.1.4 Start-up
After having connected the EVD4, as described in 3.1.1, connect the service serial port to a PC using the
special converter and configure the values of the parameters and the address using the software described
in 3.1.3 according to the application and/or systems used.
The parameters can be accessed for read and write even if the EVD4 is not powered, as the converter or
the programming key provide the power supply to the driver, excluding the valve.

14
Fig. 3.8
Fig. 3.6
GNX RT+ RT-
PHOENIX®MC1,5/3-ST-3,81
G
G0
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
EVD4
0,8 A T
24 Vac
pCO
230 Vac
Fig. 3.7
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
3.2 Application with pCO (EVD000*40* and EVD000*43*) via tLAN
3.2.1 Connections
Communication: with reference to Fig. 3.6, connect GNX and RT+ to the pCO unit.
Power supply: with reference to Fig. 3.7, connect G and G0 to the 24 Vac power supply side;
Valve: with reference to Fig. 3.8, connect the valve according to the type set for the “Valve
type” parameter.
Probes: Connect the ratiometric pressure sensors and NTC temperature sensors to S1 and S3
respectively.
For other types of probes or connections, change the value of the “EVD probes type”
parameter and see chap. 4
3.2.2 List of parameters
Below is the list of parameters; the meaning of each is detailed in APPENDIX II, while APPENDIX III shows a
list of the values of the reference parameters in relation to the most common applications.
In the standard application, the EVD4 read and write parameters are organised into three groups, accessible
from a pCO terminal: input/output, maintenance and manufacturer
The SYSTEM SET level must be compiled, as this contains the information on what is physically installed
in the system. Selecting the type of driver and enabling any advanced functions will allow access to
specific fields/masks in this or other menus.
The AUTO SETUP level of parameters must also be compiled, and contains fundamental information on
the type of unit.
The ADVANCED SET branch is not required for standard superheat control and is provided for expert
users and/or to implement non-standard functions.
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
NTC -50T105 °C
S3
NTC*WF*
Temp.
GND
ratiometric +
OUT
Vr1
SPKT*R*
Press.
GND
P
S1
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
1
2
3
4
Green
Black
Red
White
Green
Yellow
Brown
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00004**
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
3
4
1
2
Green
Yellow
Brown
White
Green
Black
Red
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00014**

15
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
Key:
= Main parameters required to start operation;
= Secondary parameters required for optimum operation;
—= Advanced parameters.
MANUFACTURER group
SYSTEM SET
Parameter name Description
EVD type model of EVD used, from pCO 
EVD probes type number indicating the combination of sensors used to calculate the superheat 
Valve type number that defines the type of electronic valve used 
Battery presence enable valve not closed error, to be entered if the battery is present 
Refrigerant number indicating the type of refrigerant used 
Custom valve configuration
Minimum steps minimum control steps —
Maximum steps maximum control steps —
Closing steps steps completed in total closing —
Opening extra steps enable extra steps in opening —
Closing extra steps enable extra steps in closing —
Phase current peak current per phase —
Still current current with the motor off —
Steprate motor speed —
Duty cycle motor duty cycle —
EEV stand-by steps number of valve standby steps, see standby steps —
S1 probe limits Min ‘zero’ scale for pressure sensor on input S1 
S1 probe limits Max end scale for pressure sensor on input S1 
S2-Pt1000 calib. calibration index for PT1000 sensor —
Alarms delay
Alarms delay Low SH low superheat alarm delay —
Alarms delay High SH high superheat temperature alarm delay in CH mode —
Alarms delay LOP low evaporation pressure (LOP) alarm delay —
Alarms delay MOP high evaporation pressure (MOP) alarm delay —
Alarms delay probe error probe error alarm delay —
Stand alone enable StandAlone
AUTOSETUP
Parameter name Description
Re-install AUTOSETUP values confirm enable restore parameter default values 
Circuit/EEV ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed 
Compressor or unit macroblock parameter that defines the integral time 
Capacity control macroblock parameter that defines the proportional factor 
Evaporator Type Cool macroblock parameter that defines the integral time 
Heat macroblock parameter that defines the integral time 
Cool Mode temperature at minimum operating pressure (MOP) in CH mode 
Heat Mode temperature at minimum operating pressure (LOP) in HP mode 
Defr. Mode temperature at minimum operating pressure (LOP) in DF mode 
MOP
Cool Mode temperature at maximum operating pressure (MOP) in CH mode 
Standby steps temperature at maximum operating pressure (MOP) in HP mode 
Defr. Mode temperature at maximum operating pressure (MOP) in DF mode 
High SH alarm threshold maximum superheat temperature
ADVANCED SETTINGS – FINE TUNING
Parameter name Description
CH-Circuit/EEV Ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed, in CH mode —
CH-Superheat set superheat set point in CH mode —
cool mode adjust CH-Proportional gain PID proportional factor in CH mode —
CH-Integral time integral time for superheat control in CH mode —
CH-Low Superheat low superheat value in CH mode —
heat mode adjust
HP-Circuit/EEV Ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed, in HP mode —
HP-Superheat set superheat set point in HP mode —
HP-Proportional gain PID proportional factor in HP mode —
HP-Integral time integral time for superheat control in HP mode —
HP-Low Superheat low superheat value in HP mode —
defr. mode adjust
DF-Circuit/EEV Ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed, in DF mode —
DF-Superheat set superheat set point in DF mode —
DF-Proportional gain PID proportional factor in DF mode —
DF-Integral time integral time for superheat control in DF mode —
DF-Low Superheat low superheat value in DF mode —
common list adjust
SHeat dead zone dead zone for PID control —
Derivative time PID derivative time —
Low SHeat int. time integral time for low superheat control —
LOP integral time integral time for low evaporation pressure (LOP) control —
MOP integral time integral time for high evaporation pressure (MOP) control —
MOP startup delay MOP delay time —
Hi TCond. protection maximum condensing temperature —
Hi TCond. int. time integral time for high condensing pressure control (HiTcond) —
Dynamic prop. gain attenuation coefficient with change in capacity —
Blocked valve check time after which, in certain conditions, the valve is considered as being blocked —

16
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
INPUT/OUTPUT group
Parameter name Descriprion
DriverX mode operating mode of the X-th driver, from pCO
EEV mode man. enable/disable manual valve positioning
EEV position calculated electronic expansion valve opening position
Power request cooling capacity, from pCO
RXXX refrigerant configured for the REFRIGERANT parameter
Superheat superheat value measured
Saturated temp. see Ev. probe sat. temp.
Suction temp. compressor suction temperature value measured
Evaporation probe Pressure evaporation pressure value measured
Saturated Temp. saturated gas temperature value calculated in the evaporator
Condensation
probe
Pressure condensing pressure value measured, from pCO
Saturated temp saturated gas temperature value calculated in the condenser, calculated from dry on previous condensing pressure
Aux. probe value measured by the auxiliary probe set for the AUX. PROBE CONFIG. parameter
Act. SH set current superheat set point
EVD version H.W driver hardware version
EVD version S.W software version installed on the driver
MAINTENANCE group
Parameter name Description
Manual mng.
driver ‘X’
EEV Mode electronic expansion valve control mode, read EEV mode man.
Requested steps required motor position in manual control.
EEV position calculated electronic expansion valve opening position
Driver ‘X’ status Go ahead enable restart following error
Probes offset S1 correction of the lower limit of S1
Probes offset S2 correction of the lower limit of S2
Probes offset S3 correction of the lower limit of S3
ADVANCED SETTINGS – SPECIAL TOOLS
Not available
ALARMS (for driver ‘X’)
Parameter name Description
alarm probe error active following an error on the signal from the probe
alarm Eeprom error active following an EEPROM memory error
alarm MOP timeout active in conditions with excessive evaporation pressure
alarm LOP timeout active in conditions with insufficient evaporation pressure
alarm Low Superheat active in low superheat conditions
EEV not closed active due to failed valve closing
driver X high superheat driver X with high superheat
3.2.3 Start-up
After having connected the EVD4, cas described in 3.4.1, configure the parameters listed in 3.4.2 using
the display that manages the pCO, according to the application and/or systems used. For the unit to be
correctly operated, the SYSTEM SET and AUTOSETUP levels need to be compiled.
The SYSTEM SET level must be compiled, as this contains the information on what is physically installed
in the system. Selecting the type of driver and enabling any advanced functions will allow access to
specific fields/masks in this or other menus.
The AUTO SETUP level of parameters must also be compiled, and contains fundamental information on
the type of unit.
The ADVANCED SET branch is not required for standard superheat control and is provided for expert
users and/or to implement non-standard functions.
If some essential fields have not been configured, the alarm message
– DRIVER “x” AUTOSETUP PROCEDURE NOT COMPLETED –
will prevent the unit from being started until the autosetup procedure has been completed.

17
MOLEX®
Mini-Fit 538-39-01-2140
G Vbat DI1 S4V S3 S2 S1
G0 GND
4...20 mA
0...10 V
DI2 S4I Vr1 Vr2 OC
+
Fig. 3.9
USB
convertitore /
converter
CVSTDUTTL0
A
GNX RT+ RT-
B
Fig. 3.10
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
EVD4
0,8 A T
24 Vac
DI 1
230 Vac
Fig. 3.11
Fig. 3.12
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
3.3 Application as positioner (EVD000*40* and EVD000*43*)
The EVD4code EVD000*40* (or EVD000*43*) can be used as a positioner for electronic expansion
valves, proportional to a 4 to 20 mA or 0 to 10 Volt signal from a controller.
3.3.1 Connections
Communication: connect S4I and GND to the controller for 4 to 20 mA signals;
connect S4V and GND to the controller for 0 to 10 Volt signals (Fig. 3.9).
Configuration: connect the converter (CVSTDUTTL0 or CVSTD0TTL0) to the service serial port and to a
PC with USB or RS232 (Fig. 3.10).
Power supply: with reference to Fig. 3.11, connect G and G0 to the 24 Vac power supply side.
Valve: with reference to Fig. 3.12 connect the valve according to the type set for the “Valve
type” parameter.
3.3.2 List of parameters
Below is the list of parameters visible on the EVD4-UI, divided into read and write; the meaning of each
parameter is detailed in APPENDIX II.
Key:
= Main parameters required to start operation;
= Secondary parameters required for optimum operation;
—= Advanced parameters.
WRITE
Parameter name Description
Mode dependent parameters (Fig. 9)
Calibr. S4 gain mA current gain on channel S4
Calibr. S4 offs mA current offset on channel S4
Calibr. S4 gain Volt voltage gain on channel S4
Calibr. S4 offs Volt voltage offset on channel S4
Global parameters (Fig. 9)
Regulation type type of control 
EEV mode man. enable/disable manual valve positioning
Requested steps required motor position in manual control
S4 probe type type of probe on channel S4 
Valve type number that defines the type of electronic valve used 
KEY 1
KEY 12
En. positioner enable positioner function 
READ
System measurements (Fig. 9)
Parameter name Description
EEV opening valve opening as a %
EEV position position of the valve in steps
S4 signal signal on input S4
Digital variables (Fig. 9)
Reset to default confirm enable default parameters
Functional test functional test
Digital input 1 status of digital input 1
Stand alone select stand-alone operation
Key:
A Service serial port
B Main serial port
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
1
2
3
4
Green
Black
Red
White
Green
Yellow
Brown
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00004**
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
3
4
1
2
Green
Yellow
Brown
White
Green
Black
Red
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00014**

18
Fig. 3.13
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
3.3.3 EVD4_UI user interface
The EVD4_UI user interface is based on the CAREL supervisor protocol and is designed for the easy and
intuitive reading or configuration of the control parameters. The program can be started in different
configurations so as to display the set of parameters that is suitable for the type of installation the EVD4; is used
in; to do this, make the connection using the name of the required configuration. The interface configuration
for the ‘positioner’ function is shown in Fig. 3.13 and is activated by making the “EVD4_UI positioner”
connection.
3.3.4 Start-up
After having connected the EVD4as described in 3.3.1, connect the service serial port to a PC using the
converter and configure the values of the parameters listed in 3.3.2 using the software described in 3.3.3
as follows:
- Power up the EVD4from the mains or via converter
- Connect EVD4 to the PC via the converter
- Set “S4 probe type” = 5 (configuration of input S4 as 4 to 20 mA) or 6 (0 to 10 V)
- Close input DI1
- Set “posit. with S4”= 2
- Activate “stand alone”
To calibrate the analogue inputs, proceed as follows:
- Reset the EVD4 by activating the digital variable “Reset to default”
- Within 30 seconds write 19157 to KEY1 (functional test mode)
- Write 1223 to KEY12 (disable exit the functional test by timeout, within 250 seconds)
- Activate the Functional test digital variable; the calibration parameters are now accessible in write mode
- Set the Calibr. S4 gain mA and Calibr. S4 offs mA parameters to zero for 4 to 20 mA operation, or
alternatively Calibr. S4 gain Volt and Calibr. S4 offs Volt for 0 to 10 Volt operation
- Set S4 probe type = 5 (configuration of input S4)
The parameters can be accessed for read and write even if the EVD4is not powered, as the converter or the
programming key provide the power supply to the driver, excluding the valve

19
Fig. 3.14
GNX RT+ RT-
PHOENIX®MC1,5/3-ST-3,81
Fig. 3.16
G
G0
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
EVD4
0,8 A T
24 Vac
pCO
230 Vac
Fig. 3.15
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
3.4 Application with pCO (EVD000041* and EVD000044*) via pLAN
3.4.1 Connections
Communication: connect GNX, RT+ and RT- to the pCO unit (Fig. 3.14).
Power supply: connect G and G0 to the 24 Vac (Fig. 3.15).
Valve: with reference to Fig. 3.16, connect the valve according to the type set for
the “Valve type” parameter;
Probes: Connect the ratiometric pressure sensors and NTC temperature sensors to S1 and S3
respectively.
For other types of probes or connections, change the value of the “EVD probes type”
parameter and see chap. 4
3.4.2 List of parameters
Below is the list of parameters; the meaning of each is detailed in APPENDIX II, while APPENDIX III shows a
list of the values of the reference parameters in relation to the most common applications.
In the standard application, the EVD4 read and write parameters are organised into three groups, accessible
from a pCO terminal: input/output, maintenance and manufacturer
The SYSTEM SET level must be compiled, as this contains the information on what is physically installed
in the system. Selecting the type of driver and enabling any advanced functions will allow access to
specific fields/masks in this or other menus.
The AUTO SETUP level of parameters must also be compiled, and contains fundamental information on
the type of unit.
The ADVANCED SET branch is not required for standard superheat control and is provided for expert
users and/or to implement non-standard functions.
MANUFACTURER group
SYSTEM SET
Key:
= Main parameters required to start operation;
= Secondary parameters required for optimum operation;
—= Advanced parameters.
Parameter name Description
EVD type model of EVD used, from pCO 
EVD probes type number indicating the combination of sensors used to calculate the superheat 
Valve type number that defines the type of electronic valve used 
Battery presence enable valve not closed error, to be entered if the battery is present 
Refrigerant number indicating the type of refrigerant used 
G Vbat DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
NTC -50T105 °C
S3
NTC*WF*
Temp.
GND
ratiometric +
OUT
Vr1
SPKT*R*
Press.
GND
P
S1
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
1
2
3
4
Green
Black
Red
White
Green
Yellow
Brown
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00004**
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
21
43
3
4
1
2
Green
Yellow
Brown
White
Green
Black
Red
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00014**

20
ENGLISH
EVD4+030220227 - rel. 2.1 - 12.06.2008
Custom valve configuration
Minimum steps minimum control steps —
Maximum steps maximum control steps —
Closing steps steps completed in total closing —
Opening extra steps enable extra steps in opening —
Closing extra steps enable extra steps in closing —
Phase current peak current per phase —
Still current current with the motor off —
Steprate motor speed —
Duty cycle motor duty cycle —
EEV stand-by steps number of valve standby steps, see standby steps —
S1 probe limits Min ‘zero’ scale for pressure sensor on input S1 
S1 probe limits Max end scale for pressure sensor on input S1 
S2-Pt1000 calib. calibration index for PT1000 sensor —
Alarms delay
Alarms delay Low SH low superheat alarm delay —
Alarms delay High SH high superheat temperature alarm delay in CH mode —
Alarms delay LOP low evaporation pressure (LOP) alarm delay —
Alarms delay MOP high evaporation pressure (MOP) alarm delay —
Alarms delay probe error probe error alarm delay —
Stand alone enable StandAlone —
AUTOSETUP
Parameter name Description
Re-install AUTOSETUP values confirm enable restore parameter default values 
Circuit/EEV ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed 
Compressor or unit macroblock parameter that defines the integral time 
Capacity control macroblock parameter that defines the proportional factor 
Evaporator Type Cool macroblock parameter that defines the integral time 
Heat macroblock parameter that defines the integral time 
Cool Mode temperature at minimum operating pressure (MOP) in CH mode 
Heat Mode temperature at minimum operating pressure (LOP) in HP mode 
Defr. Mode temperature at minimum operating pressure (LOP) in DF mode 
MOP
Cool Mode temperature at maximum operating pressure (MOP) in CH mode 
Standby steps temperature at maximum operating pressure (MOP) in HP mode 
Defr. Mode temperature at maximum operating pressure (MOP) in DF mode 
High SH alarm threshold maximum superheat temperature —
ADVANCED SETTINGS – FINE TUNING
Parameter name Description
CH-Circuit/EEV Ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed, in CH mode —
CH-Superheat set superheat set point in CH mode —
cool mode adjust CH-Proportional gain PID proportional factor in CH mode —
CH-Integral time integral time for superheat control in CH mode —
CH-Low Superheat low superheat value in CH mode —
heat mode adjust
HP-Circuit/EEV Ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed, in HP mode —
HP-Superheat set superheat set point in HP mode —
HP-Proportional gain PID proportional factor in HP mode —
HP-Integral time integral time for superheat control in HP mode —
HP-Low Superheat low superheat value in HP mode —
defr. mode adjust
DF-Circuit/EEV Ratio percentage of the maximum capacity managed by the valve in the circuit where it is installed, in DF mode —
DF-Superheat set superheat set point in DF mode —
DF-Proportional gain PID proportional factor in DF mode —
DF-Integral time integral time for superheat control in DF mode —
DF-Low Superheat low superheat value in DF mode —
common list adjust
SHeat dead zone dead zone for PID control
Derivative time PID derivative time
Low SHeat int. time integral time for low superheat control
LOP integral time integral time for low evaporation pressure (LOP) control
MOP integral time integral time for high evaporation pressure (MOP) control
MOP startup delay MOP delay time
Hi TCond. protection maximum condensing temperature
Hi TCond. int. time integral time for high condensing pressure control (HiTcond)
Dynamic prop. gain attenuation coefficient with change in capacity
Blocked valve check time after which, in certain conditions, the valve is considered as being blocked
INPUT/OUTPUT group
Parameter name Descriprion
DriverX mode operating mode of the X-th driver, from pCO
EEV mode man. enable/disable manual valve positioning
EEV position calculated electronic expansion valve opening position
Power request cooling capacity, from pCO
RXXX refrigerant configured for the REFRIGERANT parameter
Superheat superheat value measured
Saturated temp. see Ev. probe sat. temp.
Suction temp. compressor suction temperature value measured
Evaporation probe Pressure evaporation pressure value measured
Saturated Temp. saturated gas temperature value calculated in the evaporator
Condensation
probe
Pressure condensing pressure value measured, from pCO
Saturated temp saturated gas temperature value calculated in the condenser, calculated from dry on previous condensing pressure
Aux. probe value measured by the auxiliary probe set for the AUX. PROBE CONFIG. parameter
Act. SH set current superheat set point
EVD version H.W driver hardware version
EVD version S.W software version installed on the driver