Carel EVD evolution Manuale utente

Integrated Control Solutions & Energy Savings

EVD evolution

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CABLES

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User manual

electronic expansion valve driver

ENG

“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!

ENG

“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

ENG

“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.

ENG

“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.

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

ENG

“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

EXV connectionPower Suppl

Rela

NO 1

COM 1

4231

GND

V REF

DI1

DI2

Analog – Digital Input Network

GND Tx/Rx

EVD evolution

70 60

11045

Fig. 2.a

2.2 Description of the terminals

VBAT

EXV connection APower Suppl

Rela

NO A

COM A

4231

GND

V REF

DI1

DI2

Analog – Digital Input Network

GND Tx/Rx

EVD evolution

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 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

VBAT

COMA

NOA

1324

NET

OPEN

Tx/RxGND

DI1

GND

DI2

VREF

2 AT

24 Vac

230 Vac

EVDCNV00E0

20VA(*)

shield

EVD4

EVD4ser vice USB adapter

EEVdriver

CAREL EXV

8 9 10

12 13

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.

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