Electronic Expansion Valve Controller

Electronic Expansion Valve Driver

www.dotech21.com

Electronic expansion valve controller EV series®

Effi cient Energy Saving Solutions

Electronic expansion valve controller Bipolar step motor type

EEV series

EEV series

EVC20Electronic expansion valve controller (Bipolar step motor type)Electronic expansion valve controller EVC20 of the newest technology can be used in various ways of refrigeration system. It has embedded a very high speed CPU, step motor driver for bipolar type, 2 PCS of RS 485 communication function and additional remote display. So, EVC20 is second to none in performance and stability. EVC20 is composed of control module, pressure sensor, temperature sensor and electronic expansion valve and it can be used in various compositions such as refrigeration and air condition system, heat pump, chiller and showcase by precise control function.

Main features • Smart-rail mount design• Bipolar-type electronic expansion valve can be apply to• Super heat PID precision control• DBV(Discharge Bypass Valve) method temperature PID precision control• DBV(Discharge Bypass Valve) method pressure PID precision control• set by the user opening ratio control• emergency battery power outages by applying the automatic closure valve• Available in a variety of refrigerant (R22, R134a, R404a, R407c, R410a, R717, R23)• RS485 Communication With support for PC, Heat Pump Controller, DDC, and by connecting up to 128 can monitor ※Effi cient technical support (We manufacture this model by 100% our own technology, so that perfect technical support is available )

EEV which can be compatible with EVC20EVC20 can be compatible almost all electronic expansion valve such as DANFOSS, ALCO, SPORLAN, CAREL (Can apply all bipolar types)

■Basic specifi cationsPower AC24V +10%/-15%, 50/60Hz, 1A (Including power consumption of expansion valve)

Operating features of expansion valve

BIPOLAR STEP MOTOR TYPE, MAX. 700mA

2 Phase Full Step Drive

1/1000 open ratio control accuracy (0.0 ~ 100.0%)

Operating condition Temperature -10~50℃ (No condensation)

Storage condition Temperature -20~60℃, Less than 90%RH

Sensor Pressure sensor DP512-G7 (-0.5~4.5V:5V, -40 to 120℃, -1..15bar)

Temperature sensor DPR-PT1K (PT1000ohm, -100 to 120℃)

■Ordering guide ■Accessories

EVC20-00 Electronic expansion valve controller (Basic model)

EVC20-R4 Extension type for electronic expansion valve controller (Communication, Remote display)

Exclusive power transformer

24069001 (AC220V to AC24V, 1A)

24069002 (AC110V to AC24V, 1A)

Auxiliary power EVBAT-12V (DC12V, 1.2Ah)

Pressure sensor DP512-G7 (-1..10bar or -1..15bar)

Temperature sensor DPR-PT1K-P3D50L*3m

EnergySaving

MAKER DANFOSS ALCO SPORLAN CAREL

MODEL

ETS 12.5ETS 25BETS 50B

ETS 100BETS 250ETS 400

EX4EX5EX6EX7EX8

SEI 0.5~11SER 1.5~20

SEI 30SEI 100SEI 175

E2VE2VP

Technology of ideas

EVC20

■System schematic diagram

■Dimension & display function

Master Run/Stop ControlRS485

Alarm Relay or PumpDown

Condenser

Evaporator

S1

S4

S3

Superheat control

Ev

SH

T

P

reset mv

Optional Display ModuleCPAD-EVC20 (READY)

FX-JView-EVC20

CPAD

BIPOLAR STEP MOTOR TYPE

1 2 3 4 5 6 7 8 9 10 11 12

13 14 15 16 17 18 19 20 21 22 23 24

COMP

5870

103

1 2 3 4 5 6 7 8 9 10 11 12

13 14 15 16 17 18 19 20 21 22 23 24

Super Heat 과열도(SuperHeat)를 표시 할 때,

Pressure 증발기출구 압력을 표시할 때,

Temperature 증발기출구 온도를 표시 할 때,

Open % 팽창밸브의 오픈비율을 표시 할 때,

경보시 점등 (수동복귀형 경보가 발생한 경우에는 점멸)

: 온도를 표시할때, bar : 압력을 표시할때bar

수동개방비율제어시 점멸

Super Heat When displaying superheat

Pressure When displaying pressure of evaporator outlet

Open % When displaying open ration of expansion valve

Temp When displaying temperature of evaporator outlet

bar

: When displaying temperature bar : When displaying pressure

Lighting when warning (Flickering when manual return alarm occurs)

Flickering at manual open ratio control

EEV series

EEV series

Electronic expansion valve controller Unipolar step motor type

EVC10BElectronic expansion valve controller (Unipolar step motor type)EVC10B is an electronic control device which is intended for controlling and managing electronic expansion valve in cooling system. EVC10B is composed of control module, pressure sensor, temperature sensor and electronic expansion valve and it can be used in various compositions such as refrigeration and air condition system, heat pump, chiller and showcase by precise control function.

Main features • Smart-rail mount design• Embedded superheat PID algorithm for precise control • Valve open ration control mode by external signal (4~20mA, 1~5V) input –Driver function• Compulsory valve open ration control mode by RS485 communication function• Open ratio maintenance mode for user’s input • Possible to precise control by hot gas by-pass operation • Dotech’s own quick safe function which is beyond recovery function for low and high degree of superheat.• Various types of refrigerant are available (R22, R134a, R404a, R407c, R410a, R717, R23)※Effi cient technical support (We manufacture this model by 100% our own technology, so that perfect technical support is available )

EEV which can be compatible with EVC10BEVC10B can be compatible with almost all electronic expansion valve such as SAGINOMIYA,FUJIKOKI,SANHUA,JAHWA, DunAn (Can apply all unipolar types)

■Basic specifi cationsPower AC24V +10%/-15%, 50/60Hz, 1A (Including power consumption of expansion valve)

Connection terminal Connector (MAKER : JAPAN SOLDERLESS TERMINALS)

HOUSING : XHP, CONTACTOR : SXH-0011-P0.6)

Operating features of expansion valve

UNIPOLAR STEP MOTOR TYPE, MAX. 700mA

1-2 or 2 Phase Drive, 100 ~ 9000 Pulse, 10~500PPS, 1/1000 CONTROL

1/1000 open ratio control accuracy (0.0 ~ 100.0%)

Operating condition Temperature -10~50℃ (No condensation)

Storage condition Temperature -20~60℃, Less than 90%RH

Sensor Pressure sensor (-0.5~4.5V:5V)

Temperature sensor (NTC5Kohm, -55 to 60℃)

■Ordering guide

EVC10B-00 Basic specifi cations

EVC10B-R4 RS485 Communication model(MODBUS RTU/ASCII)

■Accessories Exclusive power

transformer 240624S2001 (AC220V to AC24V, 1A)

Connection kit

CK3200-2P(For stopping operation , For communication )

CK3200-3P (For alarm output )

Pressure sensor DP512-G7 (-1..10bar or -1..15bar)

Temperature sensor DPR-TH1-ST-XHP

MAKER SANHUA SAGINOMIYA FUJIKOKI JAHWA

MODELDPF(Q)DPF(R)DPF(O)

UKVSKVVKVPKVAKV

CAMEDM

SEVJHEV

EnergySaving

EVC10B

Technology of ideas

■System schematic diagram

■Dimension & display function

Master Run/Stop Control

Condenser

Evaporator

RS485

UNIPOLAR STEP MOTOR TYPE

Alarm Relay or PumpDown

COMP

29

70

110

114

72

72

POWERTX RX

TempOpen %

PressureSuper Heat

Super Heat 과열도(SuperHeat)를 표시 할 때,

Pressure 증발기출구 압력을 표시할 때,

Temp 증발기출구 온도를 표시 할 때,

Open % 팽창밸브의 오픈비율을 표시 할 때,

경보시 점등 (수동복귀형 경보가 발생한 경우에는 점멸)

: 온도를 표시할때, bar : 압력을 표시할때bar

수동개방비율제어시 점멸

ON

12

34

RESET

DIP S/W

Super Heat When displaying superheat

Pressure When displaying pressure of evaporator outlet

Open % When displaying open ration of expansion valve

Temp When displaying temperature of evaporator outlet

bar

: When displaying temperature bar : When displaying pressure

Lighting when warning (Flickering when manual return alarm occurs)

Flickering at manual open ratio control

EEV series

EEV series

Electronic expansion valve driver Unipolar / bipolar step motor type

EVD5Electronic expansion valve driver (Unipolar step motor type)

EVD5 made by DOTECH is an economical and stable driver module for electronic expansion valve, realized various compatibility and precise control.EVD5 can be compatible with almost all electronic expansion valve of unipolar step motor and will provide an optimum effi ciency for user’s system.

EVD7Electronic expansion valve driver (Bipolar step motor type)EVD7 made by DOTECH is an economical and stable driver module for electronic expansion valve, realized various compatibility and precise control. EVD7 can be compatible with almost all electronic expansion valve of bipolar step motor and will provide an optimum effi ciency for user’s system

■Basic specifi cations• Power : AC/DC24V +10%/-15%, 50/60Hz, 1A (In case of AC, use double wiring transformer) • : UNIPOLAR STEP MOTOR TYPE, MAX. 700mA 1-2 or 2 Phase Drive, 100 ~ 9000 Pulse, 10~500PPS,1/1000 CONTROL • Operating condition : Temperature -10~50℃(No condensation)• Storage condition : Temperature -20~60℃, Less than 90%RH

■Basic specifi cations• Power : AC/DC24V +10%/-15%, 50/60Hz, 1A (In case of AC, use double wiring transformer) • : BIPOLAR STEP MOTOR TYPE, MAX. 700mA 2 Phase Full Step Drive, 1/1000 CONTROL

• Operating condition : Temperature -10~50℃(No condensation)• Storage condition : Temperature -20~60℃, Less than 90%RH

EnergySaving

EnergySaving

EEV which can be compatible with EVD5EVD5 can be compatible with almost all electronic expansion valve such as SAGINOMIYA,FUJIKOKI,SANHUA,JAHWA, DunAn (Can apply all unipolar types)

MAKER SANHUA SAGINOMIYA FUJIKOKI JAHWA

MODELDPF(Q)DPF(R )DPF(O)

UKVSKVVKVPKVAKV

CAMEDM

SEVJHEV

EEV which can be compatible with EVD7EVC7 can be compatible almost all electronic expansion valve such as DANFOSS, ALCO, SPORLAN, CAREL (Can apply all bipolar types)

MAKER DANFOSS ALCO SPOLARN CAREL

MODEL

ETS 12.5ETS 25BETS 50B

ETS 100BETS 250ETS 400

EX4EX5EX6EX7EX8

SEI 0.5~11SER 1.5~20

SEI 30SEI 100SEI 175

E2VE2VP

Operating features of expansion valve

Operating features of expansion valve

Technology of ideas

Electronic expansion valve controller PWM (on/off) type

FX32EVON/OFF Electronic expansion valve controller FX32EV made by DOTECH is an unique controller for electronic expansion valve and the very best in simple design and control logic.This control can be compatible with almost all electronic expansion valve of PWM type and support AC100~240V as a power range of valve.In addition, users can use display function because it was specially produced for panel mounted type. PT1000Ω type for temperature was adopted, so it has the advantage in measuring super low temperature to -100℃

■Basic specifi cationsPower AC100 - 240V ~ , 50/60Hz (MAX 4VA)

Control ON/OFF type electronic expansion valve control device of PID control algorithm

Input PT1000Ω temperature sensor 1 point, 4~20mA pressure sensor input 1 point (Built in loop sensor power)

Output SSR output 1 point (expansion valve on/off ), relay output 1 point (alarm port)

Connector Screw Bolt Connector (1.5mm wire is available)

expansion valve ON/OFF electronic expansion valve (AKV-danfoss)

Suitable refrigerant R22, R134a, R404a, R407c, R410a, R717, R23, R507c, R290, R600, R600a, R744, R728

Operating condition Temperature -10~50℃ (No condensation)

Storage condition Temperature -20~60℃, Less than 90%RH

Sensor Temperature sensor DPR-PT1K (PT1000ohm, -100 to 120℃), Pressure sensor (-1~9bar or 0~30bar)

Display range in 0.1℃ unit from -19.9 to 99.9℃ and display 1℃ unit outside those range.

■Ordering guide ■Accessories FX32EV - 00 Basic specifi cations

FX32EV - R4 RS485 Communication model(MODBUS RTU/ASCII)

FX32EV - R2 RS-232 Communication model

FX32EV - A1Pressure transmission output function model or in case of using 4~20mA type electronic expansion valve

Suction pressure sensor

DP506·930A

Measuring range : 930(-1~9bar), 933(0~30bar)Operating condition : -40 ~ 125℃Accuracy : ±0.5% FSIP rating : IP67Signal output : 4~20mA (2 Wire)

Temperature sensor DPR-PT1K-P3D50L*3M

- It is possible to control in 0.1% unit from to 100.0% through PWM (Open ratio control)

- Control cycle can be set from 1 sec. to 60 sec. (control in 10msec. unit)

0 6 12 18 t(sec)

50% 25% 75%

On

PWM (Pulse Width Modulation)

Control cycle : 6 sec.

DP512-G7 (-1~10bar, -1~15bar)Power DC5V±5%Signal output DC 0.5~4.5V(Ratiometric)IP rating IP65Accuracy ±0.25%Ambient temperature -40 to 120℃Measuring range -1 to 10 bar, -1 to 15 bar

DP506.930A Power DC12V~24VSignal output 4~20mA 2WireIP rating IP65Accuracy ±0.25%Ambient temperature -40 to 120℃Measuring range -1 to 9 barWiring 1(+V), 2(out)

■Temperature sensor

■Auxiliary power

DPR-PT02-P3D50LSensor type PT1000 ohmCable 2C X 0.5mmIP rating IP67Accuracy ±0.3℃ at 25℃range -100 ~ 120℃

DPR-TH1-ST-XHPSensor type NTC 5KΩCable 2C X 0.5mmIP rating IP67Accuracy ±0.3℃ at 25℃range -50 ~ 50℃

EVBAT-12VVoltage DC12VCapacity 1.2Ah

High reliability, easy operation, Specialty controller company

6F, JOONGANG-ILBO, 778 Wonsi-Dong, Danwon-Gu, Ansan-Si,Gyeonggi-Do, Korea TEL : +82-31-495-3767 / FAX : +82-31-495-3917http://www.dotech21.com | business@dotech21.com

DOTECH,INC.

24069001AC220V to AC24V, 30VA, 50/60Hz

240624S2001AC220V to AC24V, 1A, 50/60Hz

24069002AC110V to AC24V, 30VA, 50/60Hz

■Exclusive power transformer

DPF(O) .Model 1.3 2.0 2.4 3.2 5.2 6.4 ØValve capacity 1.5 2.5 3 5 8 10 USRTPower DC12V±10%Excitation system 2-2 phase excitation, unipolar driveSuitable Refrigerant R410A, R407C, R22, R134a, R23Ambient temperature -30 to 60℃ (Electrity rate 50%)Fluid temperature -30 to 70℃ (Electrity rate 50%)Humidity Less than 95%RH Total pulse 2000※Valve axis line is vertical in level surface within ±15° , coil up- ward

■Electronic expansion valve

■Pressure sensor

R201203

ACCESSORIES