Carel EVD evolution User manual

Integrated Control Solutions & Energy Savings
EVD evolution
NO POWER
& SIGNAL
CABLES
TOGETHER
READ CAREFULLY IN THE TEXT!
User manual
electronic expansion valve driver

3
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“EVD evolution”+0300005EN - rel. 3.1 - 25.07.2011
WARNINGS
CAREL bases the development of its products on decades of experience
in HVAC, on the continuous investments in technological innovations
to products, procedures and strict quality processes with in-circuit and
functional testing on 100% of its products, and on the most innovative
production technology available on the market. CAREL and its subsidiaries
nonetheless cannot guarantee that all the aspects of the product and the
software included with the product respond to the requirements of the nal
application, despite the product being developed according to start-of-the-
art techniques. The customer (manufacturer, developer or installer of the nal
equipment) accepts all liability and risk relating to the conguration of the
product in order to reach the expected results in relation to the specic nal
installation and/or equipment. CAREL may, based on specic agreements, acts
as a consultant for the positive commissioning of the nal unit/application,
however in no case does it accept liability for the correct operation of the nal
equipment/system.
The CAREL product is a state-of-the-art product, whose operation is specied
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 level of technology, requires
setup/conguration/programming/commissioning to be able to operate in
the best possible way for the specic application.The failure to complete such
operations, which are required/indicated in the user manual, may cause the
nal product to malfunction; CAREL accepts no liability in such cases.
Only qualied personnel may install or carry out technical service on the
product.
The customer must only use the product in the manner described in the
documentation relating to the product.
In addition to observing any further warnings described in this manual, the
following warnings must be heeded for all CAREL products:
• prevent the electronic circuits from getting wet. Rain, humidity and all
types of liquids or condensate contain corrosive minerals that may damage
the electronic circuits. In any case, the product should be used or stored
in environments that comply with the temperature and humidity limits
specied in the manual;
• do not install the device in particularly hot environments. Too high
temperatures may reduce the life of electronic devices, damage them and
deform or melt the plastic parts. In any case, the product should be used
or stored in environments that comply with the temperature and humidity
limits specied in the manual;
• do not attempt to open the device in any way other than described in the
manual;
• do not drop, hit or shake the device, as the internal circuits and mechanisms
may be irreparably damaged;
• do not use corrosive chemicals, solvents or aggressive detergents to clean
the device;
• do not use the product for applications other than those specied in the
technical manual.
All of the above suggestions likewise apply to the controllers, serial boards,
programming keys or any other accessory in the CAREL product portfolio.
CAREL adopts a policy of continual development. Consequently, CAREL
reserves the right to make changes and improvements to any product
described in this document without prior warning.
The technical specications shown in the manual may be changed without
prior warning.
The liability of CAREL in relation to its products is specied in the CAREL general
contract conditions, available on the website www.carel.com and/or by
specic agreements with customers; specically, to the extent where allowed
by applicable legislation, in no case will CAREL, its employees or subsidiaries
be liable for any lost earnings or sales, losses of data and information, costs of
replacement goods or services, damage to things or people, downtime or any
direct, indirect, incidental, actual, punitive, exemplary, special or consequential
damage of any kind whatsoever, whether contractual, extra-contractual or
due to negligence, or any other liabilities deriving from the installation, use or
impossibility to use the product, even if CAREL or its subsidiaries are warned
of the possibility of such damage.
DISPOSAL
INFORMATION FOR USERS ON THE CORRECT
HANDLING OF WASTE ELECTRICAL AND ELEC-
TRONIC EQUIPMENT (WEEE)
In reference to European Union 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. thepublicorprivatewastecollectionsystemsdenedbylocallegislationmust
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 eects 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. intheeventofillegaldisposalofelectricaland electronicwaste,thepenalties
are specied by local waste disposal legislation.
Warranty on the materials: 2 years (from the date of production, excluding
consumables).
Approval: the quality and safety of CAREL INDUSTRIES products are
guaranteed by the ISO 9001 certied design and production system, as well
as by the marks (*).
WARNING: separate as much as possible the probe and digital input signal
cables from the cables carrying inductive loads and power cables to avoid
possible electromagnetic disturbance.
Never run power cables (including the electrical panel wiring) and signal
cables in the same conduits.
NO POWER
& SIGNAL
CABLES
TOGETHER
READ CAREFULLY IN THE TEXT!

5
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“EVD evolution”+0300005EN - rel. 3.1 - 25.07.2011
Content
1. INTRODUCTION 7
1.1 Models ............................................................................................................ 7
1.2 Functions and main characteristics............................................................. 7
2. INSTALLATION 9
2.1 DIN rail assembly and dimensions............................................................. 9
2.2 Description of the terminals......................................................................... 9
2.3 Connection diagram - superheat control .................................................. 9
2.4 Installation ...................................................................................................... 10
2.5 Valve operation in parallel and complementary mode........................ 10
2.6 Shared pressure probe................................................................................ 11
2.7 Connecting the USB-tLAN converter........................................................ 11
2.8 Connecting the USB/RS485 converter..................................................... 11
2.9 Upload, Download and Reset parameters (display)............................. 11
2.10 Show electrical connections (display)...................................................... 12
2.11 General connection diagram...................................................................... 12
3. USER INTERFACE 13
3.1 Assembling the display board (accessory).............................................. 13
3.2 Display and keypad...................................................................................... 13
3.3 Display mode (display) ............................................................................... 14
3.4 Programming mode (display).................................................................... 14
4. COMMISSIONING 15
4.1 Commissioning.............................................................................................. 15
4.2 Guided commissioning procedure (display).......................................... 15
4.3 Checks after commissioning........................................................................17
4.4 Other functions...............................................................................................17
5. CONTROL 18
5.1 Main and auxiliary control........................................................................... 18
5.2 Superheat control ......................................................................................... 18
5.3 Adaptive control and autotuning............................................................... 19
5.4 Control with Emerson Climate Digital Scroll™ compressor ...............20
5.5 Control with SIAM ANB scroll compressor.............................................. 21
5.6 Superheat regulation with 2 temperature probes................................. 21
5.7 Advanced regulation ....................................................................................22
5.8 Auxiliary control ............................................................................................24
6. FUNCTIONS 27
6.1 Power supply mode .....................................................................................27
6.2 Network connection.....................................................................................27
6.3 Inputs and outputs .......................................................................................27
6.4 Control status ................................................................................................28
6.5 Advanced control status ..............................................................................30
7. PROTECTORS 32
7.1 Protectors........................................................................................................32
8. PARAMETERS TABLE 35
8.1 Unit of measure.............................................................................................39
8.2 Variables accessible via serial connection ...............................................40
8.3 Variables used based on the type of control......................................... 41
9. ALARMS 42
9.1 Alarms..............................................................................................................42
9.2 Alarm relay configuration............................................................................43
9.3 Probe alarms..................................................................................................43
9.4 Control alarms ...............................................................................................44
9.5 EEV motor alarm...........................................................................................44
9.6 LAN error alarm.............................................................................................45
10. TROUBLESHOOTING 46
11. TECHNICAL SPECIFICATIONS 48
12. APPENDIX: VPM (VISUAL PARAMETER MANAGER) 49
12.1 Installation ....................................................................................................49
12.2 Programming (VPM)....................................................................................49
12.3 Copying the setup .......................................................................................50
12.4 Setting the default parameters...................................................................50
12.5 Updating the driver and display firmware...............................................50

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“EVD evolution”+0300005EN - rel. 3.1 - 25.07.2011
1. INTRODUCTION
EVD evolution is a driver for double pole stepper motors designed
to control the electronic expansion valve in refrigerant circuits. It is
designed for DIN rail assembly and is tted with plug-in screw terminals.
It controls refrigerant superheat and optimises the eciency of the
refrigerant circuit, guaranteeing maximum exibility, being compatible
with various types of refrigerants and valves, in applications with chillers,
air-conditioners and refrigerators, the latter including subcritical and
transcritical CO2systems. It features low superheat, high evaporation
pressure (MOP), low evaporation pressure (LOP) and high condensing
temperature protection, and can manage, as an alternative to superheat
control, special functions such as the hot gas bypass, the evaporator
pressure control (EPR) and control of the valve downstream of the gas
cooler in transcritical CO2circuits.
In the versions for CAREL valves, if integrated with a specic CAREL pCO
controller via LAN, the driver can control one of the following:
• an electronic expansion valve in a refrigerant circuit with Emerson
Climate Technologies Digital Scroll™ compressor;
• an electronic expansion valve in a refrigerant circuit with SIAM ANB
scroll compressor. In this case the compressor must be controlled
by the CAREL Power+ speed drive (with inverter), this in turn
connected to the pCO controller.
The EVD evolution driver can control an electronic expansion valve in
a refrigerant circuit with Digital Scroll compressor, if integrated with a
specic CAREL controller via LAN. In addition, it features adaptive control
that can evaluate the eectiveness of superheat control and if necessary
activate one or more tuning procedures. Together with superheat
control, it can manage an auxiliary control function selected between
condensing temperature protection and “modulating thermostat”. As
regards network connectivity, the driver can be connected to either of
the following:
• a pCO programmable controller to manage the controller via pLAN,
tLAN and RS485/Modbus®;
• a PlantVisorPRO supervisor via RS485/Modbus®. In this case, On/O
control is performed via digital input 1 or 2, if suitably congured. As
well as regulation start/stop, digital inputs 1 and 2 can be congured
for the following:
- valve regulation optimization after defrost;
- discharged battery alarm management;
- valve forced open (at 100%);
- regulation backup;
- regulation security.
The second digital input is available for optimised defrost management.
Another possibility involves operation as a simple positioner with 4 to 20
mA or 0 to 10 Vdc analogue input signal. EVD evolution comes with a LED
board to indicate the operating status, or a graphic display (accessory) that
can be used to perform installation, following a guided commissioning
procedure involving setting just 4 parameters: refrigerant, valve, pressure
probe, type of main control (chiller, showcase, etc.). The procedure can
also be used to check that the probe and valve motor wiring is correct.
Once installation is complete, the display can be removed, as it is not
necessary for the operation of the driver, or alternatively kept in place to
display the signicant system variables, any alarms and when necessary
set the control parameters.The driver can also be setup using a computer
via the service serial port. In this case, the VPM program (Visual Parameter
Manager) needs to be installed, downloadable from http://ksa.carel.com,
and the USB-tLAN converter EVDCNV00E0 connected.
Only on RS485/ Modbus® models can the installation procedure be
managed as described above by computer, using the serial port (see
paragraph 2.8) in place of the service serial port. The “universal” models
can drive all types of valves, while the CAREL models only drive CAREL
valves.
1.1 Models
Code Description
EVD0000E00 EVD evolution universal - tLAN
EVD0000E01 EVD evolution universal - tLAN, multiple pack of 10 pcs (*)
EVD0000E10 EVD evolution universal - pLAN
EVD0000E11 EVD evolution universal - pLAN, multiple pack of 10 pcs (*)
EVD0000E20 EVD evolution universal - RS485/Modbus®
EVD0000E21 EVD evolution universal - RS485/Modbus®, multiple pack of
10 pcs (*)
EVD0000E30 EVD evolution for CAREL valves - tLAN
EVD0000E31 EVD evolution for CAREL valves - tLAN, multiple pack 10
pcs (*)
EVD0000E40 EVD evolution for CAREL valves - pLAN
EVD0000E41 EVD evolution for CAREL valves - pLAN, multiple pack 10
pcs (*)
EVD0000E50 EVD evolution for CAREL valves - RS485/Modbus®
EVD0000E51 EVD evolution for CAREL valves - RS485/Modbus®, multiple
pack 10 pcs
EVD0002E10 EVD evolution universal - pLAN opto-isolated
EVD0002E20 EVD evolution universal - RS485/Modbus®opto-isolated
Tab. 1.a
(*)The codes with multiple packages are sold without connectors,
available separately in code EVDCON0021.
1.2 Functions and main characteristics
In summary:
• electrical connections by plug-in screw terminals;
• serial card incorporated in the driver, based on the model (tLAN, pLAN,
RS485/Modbus®);
• compatibility with various types of valves (“universal”models only) and
refrigerants;
• activation/deactivation of control via digital input 1 or remote control
via pLAN, from pCO programmable controller;
• superheat control with protection functions for low superheat, MOP,
LOP, high condensing temperature;
• adaptive superheat control;
• function to optimise superheat control for air-conditioning units
tted with Emerson Climate Digital Scroll™ compressor. In this case,
EVD Evolution must be connected to a CAREL pCO series controller
running an application program that can manage units with Digital
Scroll compressors. This function is only available on the controllers for
CAREL valves;
• conguration and programming by display (accessory), by computer
using the VPM program or by PlantVisor/PlantVisorPro supervisor and
pCO programmable controller;
• commissioning simplied by display with guided procedure for setting
the parameters and checking the electrical connections;
• multi-language graphic display, with “help” function on various
parameters;
• management of dierent units of measure (metric/imperial);
• parameters protected by password, accessible at a service (installer)
and manufacturer level;
• copy the conguration parameters from one driver to another using
the removable display;
• ratiometric or electronic 4 to 20 mA pressure transducer, the latter can
be shared between up to 5 drivers, useful for multiplexed applications;
• possibility to use S3 and S4 as backup probes in the event of faults on
the main probes S1 and S2;
• 4 to 20 mA or 0 to 10 Vdc input to use the driver as a positioner
controlled by an external signal;
• management of power failures with valve closing (only for drivers with
24 Vac power supply and connected to the EVBAT00400 /EVBAT00500
accessory);
• advanced alarm management.

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“EVD evolution”+0300005EN - rel. 3.1 - 25.07.2011
For software versions higher than 4.0, the following new functions have
been introduced:
• 24 Vac or 24 Vdc power supply, in the latter case without valve closing
in the event of power failures;
• pre-position time settable by parameter;
• use of digital to start/stop control when there is no communication
with the pCO programmable controller;
• possibility to control the electronic expansion valve in a refrigerant
circuit with SIAM ANB scroll compressor, controlled by CAREL Power+
speed drive (with inverter).
Series of accessories for EVDevolution
Display (code EVDIS00**0)
Easily applicable and removable at any time from the front panel of
the driver, during normal operation displays all the signicant system
variables, the status of the relay output and recognises the activation of
the protection functions and alarms. During commissioning, it guides
the installer in setting the parameters required to start the installation
and, once completed, can copy the parameters to other drivers. The
models dier in the rst settable language, the second language for all
models is English. EVDIS00**0 can be used to congure and monitor all
the control parameters, accessible via password at a service (installer) and
manufacturer level.
Fig. 1.a
USB/tLAN converter (code EVDCNV00E0)
The USB-tLAN converter is connected, once the LED board cover has
been removed, to the service serial port underneath. Fitted with cables
and connectors, it can connect EVD evolution directly to a computer,
which, using the VPM program, can congure and program the driver.
VPM can also be used to update the driver and display rmware.
USB/RS485 converter (code CVSTDUMOR0)
The converter is used to connect the conguration computer and the
EVD evolution controllers, for RS485/Modbus® models only.
Fig. 1.b
Battery module (code EVBAT00400)
Important: the EVBAT00400 battery module can only be used with 24
Vac power supply.
The EVBAT00400 module is an electronic device made by CAREL which
guarantees temporary power supply to the EVD0000E* driver (up to
2 drivers can be connected), in the event of a sudden power failure. It
signals the battery discharged or faulty status via an open collector
output, which can be used by the pCO to generate an alarm message
and notify the technical service for preventive maintenance.
Powered by a 12 V lead backup battery, it supplies 12 Vdc to the
controller for the time required to completely close the electronic valve
being controlled, while during normal operation ensures the battery is
correctly recharged. The battery (code EVBAT00500) and the box (code
EVBATBOX*0) can be purchased separately.
EVBAT00400 EVBAT00500
Fig. 1.c
Valve cable E2VCABS*00 (IP67)
Shielded cable with built-in connector for connection to the valve motor.
The connector code E2VCON0000 (IP65) can also be purchased on its
own, to be wired.
Fig. 1.d

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“EVD evolution”+0300005EN - rel. 3.1 - 25.07.2011
2. INSTALLATION
2.1 DIN rail assembly and dimensions
EVD evolution is supplied with screen-printed connectors to simplify
wiring. The shield is connected with a spade terminal.
VBAT
G0
G
EXV connectionPower Suppl
y
Rela
y
NO 1
COM 1
4231
GND V REF S1 S2 S3 S4 DI1 DI2
Analog – Digital Input Network
GND Tx/Rx
EVD evolution
70 60
11045
Fig. 2.a
2.2 Description of the terminals
VBAT
G0
G
EXV connection APower Suppl
y
Rela
y
A
NO A
COM A
4231
GND V REF S1 S2 S3 S4 DI1 DI2
Analog – Digital Input Network
GND Tx/Rx
EVD evolution
aa
b
Fig. 2.b
Terminal Description
G, G0 Power supply
VBAT Emergency power supply
Functional earth
1,3,2,4 Stepper motor power supply
COM1, NO1 Alarm relay
GND Earth for the signals
VREF Power to active probes
S1 Probe 1 (pressure) or 4 to 20 mA external signal
S2 Probe 2 (temperature) or 0 to 10 V external signal
S3 Probe 3 (pressure)
S4 Probe 4 (temperature)
DI1 Digital input 1
DI2 Digital input 2
Terminal for tLAN, pLAN, RS485, Modbus® connection
Terminal for tLAN, pLAN, RS485, Modbus® connection
Terminal for pLAN, RS485, Modbus® connection
aa service serial port (remove the cover to access )
b serial port
Tab. 2.b
2.3 Connection diagram - superheat control
G
G0
G
G0
VBAT
COMA
NOA
1324
NET
OPEN
CLOSE
Tx/RxGND
DI1
S4
S3
S2
S1
GND
DI2 VREF
2 AT
24 Vac
230 Vac
EVDCNV00E0
20VA(*)
shield
EVD4 PC
EVD4ser vice USB adapter
EEVdriver
4
S
4
2
3
CAREL EXV
1
6
7
8 9 10
11
12 13
5
Fig. 2.c
(*) in combination with Alco EX7 or EX8 valves, use a 35 VA transformer
(code TRADRFE240)
Key:
1 green
2 yellow
3brown
4 white
5 personal computer for conguration
6 USB/tLAN converter
7 adapter
8 ratiometric pressure transducer - evaporation pressure
9 NTC suction temperature
10 digital input 1 congured to enable control
11 free contact (up to 230 Vac)
12 solenoid valve
13 alarm signal
Note:
• connect the valve cable shield to the spade connector;
• the use of the driver for the superheat control requires the use of the
evaporation pressure probe S1 and the suction temperature probe
S2, which will be tted after the evaporator, and digital input 1/2 to
enable control. As an alternative to digital input 1/2, control can be
enabled via remote signal (tLAN, pLAN, RS485). For the positioning of
the probes relating to other applications, see the chapter on“Control”;
• inputs S1, S2 are programmable and the connection to the terminals
depends on the setting of the parameters. See the chapters on
“Commissioning”and “Functions”;
• pressure probe S1 in the diagram is ratiometric. See the general
connection diagram for the other electronic probes, 4 to 20 mA or
combined;
• four probes are needed for superheat control with SIAM ANB
compressors, two to measure the superheat and two to measure the
discharge superheat and the discharge temperature. See chap. 5.