DOTECH UIC-DX270 User manual

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Application: Chiller, CDU, Spot Cooler
Compressor Maker: Bitzer, Roltec, Fusheng, Hanbell, Refcomp, Hitachi, Mitubishi, Etc
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DOTECH, INC
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Joongang-ilbo building 6F, Wonsi-dong, Danwon-gu
Ansan-si, Gyeonggi-do, KOREA
Tel : [phone] (Customer Service Center)
Fax : [phone] Homepage : www.dotech21.com
E-mail : [e-mail]
Universal Intelligent Controlle
r
UIC-DX270 for Screw Compresso
r
2006-Apr rev. 1

UIC-DX270 Series User’s Manual Rev 1.0
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※ Certainly read 'warning matter for safety', and please use before using.
Warning matter for safety
This direction is for using the product correctly so that you could be safe from danger or incident.
Please carefully keep this all direction.
zPlease use with being attached to a dual safety device in case of using for controlling instruments which could be
effective to human life or property (ex: controlling atomic energy, medical instruments, cars, trains, flights, burners,
amusement instruments or safety machinery).
zPlease use with panel, there is a possibility getting an electric shock.
zDo not inspect or test with connecting power.
zPlease connect after checking the terminal number when connecting power.
zDo not reorganize except mechanic from DOTECH.
zDo not use outdoor. It would be a cause making the product life shorter.
zWhen connecting wires, please give a good screw on terminal. There is a possibility causing a fire with bad connection.
zPlease use in the proper performance zone. If you don’t, there is a possibility making the product life shorter or, causing a
fire accident.
zDo not use a load which is exceeded proper value of opening and shutting capacity of a relay contact. This will cause bad
insulation, bad contact and bad connection.
zWhen cleaning, water or liquid including oil are prohibited, only clean with soft and dried cloth.
zDo not use in the place where there is inflammability gas, explosiveness gas, moisture, a direct ray of light, radiation,
vibration and a shock.
zPlease prevent from getting a dirt or leftover wire inside of this product.
zWhen connecting a sensor, please connect correctly after checking the polarity.
Some of the setting, size etc. on this manual could be changed without an advance notice.

UIC-DX270 Series User’s Manual Rev 1.0
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Warranty Information
This is the warranty below for customer who has a license or product from DOTEC.
The condition of warranty
The warranty period for DOTECH products is a year so that it is provided support of the product during the
warranty period.
『DOTECH does not have a responsibility for problems of product under the circumstance below.
In the case of using without concerning the proper form mentioned on the manual.
In the case of problems caused from both external artificial and environmental factors.
Please contact DOTECH in advance if there is any problem of product caused during the warranty period.
If the problem of product is informed from customer in the warranty period, it will be checked up in the customer area or
sent to DOTECH to check and conduct repair of exchange services directly. If the product is over the warranty period or
that is on the condition that it is not mentioned on manual, customer would be suggested to pay the cost of repair, exchange
and delivery.
On the condition that suggestions for ‘Warranty Condition Performance’ below are not against the law, DOTECH is not
responsible for any compensation and guarantee caused by losses or damages by business interruption, loss, return.
Warranty Condition Performance
DOTECH is not responsible for any loss, damages, expenses insisted by customer, delegate, contractor except for customer
claims caused by the condition of warranty above.
The condition of warranty mentioned above is the exclusive customer’s right. DOTECH refuses any conditions of
warranty for special purpose except for the condition of warranty.
Warranty Condition Performance does not apply any trouble caused by not following exact direction. It is responsibility for
customer to decide usage or product.
All the conditions of warranty are actually applied and Nobody has authority to modify or extend.
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UIC-DX270 Series User’s Manual Rev 1.0
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I N D E X
1. OUTLINE .................................................................................................................................................................. 8
1) SPECIAL MERITS................................................................................................................................................................9
1-1) Countermeasure of the Noise ....................................................................................... 9
1-2) RISC TYPE MICOM .................................................................................................... 9
1-3) Black box built-in: Operation recording system built-in ......................................................... 9
1-4) Display of operating state ........................................................................................... 9
1-5) Adoption Wide LCD Graphic ( Wide Temperature Range Type : -20 ~ +70℃ ).............................. 9
1-6) Miniaturization, Slimmerlization .................................................................................... 9
1-7) Expandability ........................................................................................................... 9
2) BASIC FEATURES .............................................................................................................................................................10
2-1) General feature .......................................................................................................10
2-2) CPU and LCD .........................................................................................................10
2-3) Digital input/output ..................................................................................................10
2-4) Analog input/output .................................................................................................10
2-5) Communication feature .............................................................................................10
2-6) Installation features ..................................................................................................10
2. INPUT/OUTPUT FEATURE .................................................................................................................... 11
1) DIGITAL INPUT SIGNAL .................................................................................................................................................11
2) DIGITAL OUTPUT SIGNAL .............................................................................................................................................12
3) ANALOG INPUT SIGNAL................................................................................................................................................13
4) ANALOG OUTPUT SIGNAL (OPTIONAL FUNCTION) ..............................................................................................14
5) COMMUNICATION SIGNAL (OPTIONAL FUNCTION) ............................................................................................15
5-1) SYSTEM BUS ..........................................................................................................15
5-2) LOCAL BUS ............................................................................................................15
6) CONTROL POWER INPUT..............................................................................................................................................16
3. COMPOSITION ................................................................................................................................................ 17
1) OPERATION AND DISPLAY ...........................................................................................................................................17
1-1) General composition ................................................................................................17
1-2) Operation .............................................................................................................17
1-3) Setting up program .................................................................................................17
2) OUTLINE DRAWING AND PROCESSING....................................................................................................................18
3) DISPLAY OF OPERATING STATE...................................................................................................................................19
4) FUNCTION OF AN OPERATION BUTTON ..................................................................................................................19
5) STATE DISPLAY LAMP ....................................................................................................................................................19

UIC-DX270 Series User’s Manual Rev 1.0
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6) SYMBOL EXPLANATION................................................................................................................................................21
6-1) Equipment state display ............................................................................................21
6-2) Digital input signal symbol ........................................................................................22
6-3) Digital output signal symbol ......................................................................................22
4. MENU COMPOSITION ............................................................................................................................... 23
1) OPERATION AND DISPLAY ...........................................................................................................................................23
2) MENU STRUCTURE .........................................................................................................................................................24
3) MENU ACCESS LEVEL .....................................................................................................................................................25
4) RUN INFORMATION.......................................................................................................................................................26
5) OPERATION.......................................................................................................................................................................26
6) SCHEDULE OPERATION .................................................................................................................................................27
7) TRIP LOG ...........................................................................................................................................................................28
8) TRIP AND ALARM...........................................................................................................................................................29
8-1) Trip alarm message ...............................................................................................30
9) EXTENT OPERATING SET...............................................................................................................................................32
10) CONFIGURE ....................................................................................................................................................................33
11) CALIBRATION.................................................................................................................................................................34
12) TEST MODE ....................................................................................................................................................................35
13) FACTORY SET .................................................................................................................................................................36
14) SYSTEM DATE/TIME .....................................................................................................................................................37
5. INSTALLATION PROCESS .................................................................................................................... 38
1) INSTALLATION PLACE....................................................................................................................................................38
2) INSTALLATION PROCESS...............................................................................................................................................38
3) BE WARNING MATTERS ACID CONNECTION WITH LINES...................................................................................38
6. ELECTRIC DRAWING ................................................................................................................................ 39
7. SENSOR DATA ............................................................................................................................................... 40
1) TEMPERATURE SENSOR DATA .....................................................................................................................................40

UIC-DX270 Series User’s Manual Rev 1.0
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※ Please check the product to the model ordering before usage.
Model Suffix Code Description
DX270 - - - UIC for Screw Compressor (Chiller, CDU)
Type
- 0 0 None
- 1 0
Analog Output 3 Channel
(Temperature Retransmission)
- 0 1 With Communication RS-485 Mod-Bus
Language
- - - Korean
- E - English
- C - Chinese
zElements
DX270body ---- 1
DX270 only connector (4mm nut 4 included)
DX270-00 : (3P-1, 4P-1, 5P-4, 6P-2) ---- 1set
DX270-01 : (3P-2, 4P-1, 5P-4, 6P-2) ---- 1set
DX270-10 : (3P-1, 4P-1, 5P-4, 6P-3) ---- 1set
DX270-11 : (3P-2, 4P-1, 5P-4, 6P-3) ---- 1set
DX270 exclusive trans (P/N:24069001) ---- 1 (separately purchase)
Temperature sensor (DPR-TH2-06D100L) : Discharge gas temperature (separately purchase)
Temperature sensor for DX270 (DPR-TH1-06D100L) : Exit temperature (separately purchase)
Freezing exclusive use pressure sensor (-1 ~ 9 bar) (separately purchase)
Freezing exclusive use pressure sensor (0 ~ 30 bar) (separately purchase)

UIC-DX270 Series User’s Manual Rev 1.0
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※ Product Reference
DX200 : 1 C/S Screw Chiller / Controlling CPU
DX220 : 1~2 C/S Screw Chiller / Controlling CPU
DX240 : 1~4 C/S Screw Chiller / Controlling CPU
DX260 : Multi Compressor Controller / Be control possibility with a unit number.
DX270 : 1 C/S Screw Chiller / CDU control (Controlling steps)
DX230 : 1~2 C/S Round-trip/ Screw Chiller / Controlling CPU
DX230H : 1~2 C/S Round-trip / Controlling scroll hit pump
DX100 : Controlling Air handling unit
DX140 : Controlling stable temperature and humidity

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UIC-DX270 Series User’s Manual Rev 1.0
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1) SPECIAL MERITS
UIC-DX270 supports a Korean display and trip alarm personal history for integrated controls and management of a
screw freezer, and be electronic control unit this only an excellent screw freezer having been equipped with stability.
Were adopting a digital algorithm process method by microprocessor of highly efficient RISC type, and a unification
did modular a display control module, and ensured a mounting space and stability. Delivery calls immediately a driving
situation to users to a display, and can provide convenience such as operation and maintenance etc.
1-1) Countermeasure of the Noise
A piece regarding noise measures will be the urea which is essential as controllers for industry. The digital
input/output signal the noise measures that isolation, an external signal does not flow into into boards are all
prepared. And the acid hardware watch dog timer which is restored automatically like CPU by noises dislikes 32msec,
and be operating to CPU of a board, A brown-out function becomes an innards, and be monitoring the control power
in the CPU inside by real time.
1-2) RISC TYPE MICOM
The assembly instruction code of CPU conducts 7.3738M instruction per second, controlling logic writing on CPU
spends about 1[msec] per cycle. Thus, it is less possibility to make trouble and much detailed to control than normal
controller.
1-3) Black box built-in: Operation recording system built-in
DX - 270 can save up to 160 events of trip warning background so that it is great to analyze trouble maintain the
product. Additionally, users can know the state of operation on the spot easily during trip.
1-4) Display of operating state
Have driving state of an air compressor and a function marking delay time and atmosphere time, and DX 270 series
can try to know at first sight driving state of a compressor.
1-5) Adoption Wide LCD Graphic ( Wide Temperature Range Type : -20 ~ +70℃ )
The display of UIC-DX270 an equipment user adopted large graphical LCD so that operation and recognition were
easily possible. ( English, Korean, Chinese ) Display of UIC-DX-270
1-6) Miniaturization, Slimmerlization
Main control wealth and display addition unification is favorable to a space security.
1-7) Expandability
RS485 port assistance, Modbus RTU standard protocol assistance, MMI Software and automatic interface assistance.

UIC-DX270 Series User’s Manual Rev 1.0
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2) BASIC FEATURES
2-1) General feature
Power Conditions
Input power AC24V 50/60Hz, DC24V
Output power 20VA(Maximum)
2-2) CPU and LCD
CPU, LCD
C P U ATmega 128, 16MHz
L C D 240 X 128 pixel, LED Backlight
2-3) Digital input/output
Digital Input
Input Method Opto-Isolation
Number of Input 10 (5 X 2 Common)
Signal Power AC24V or DC24V
Digital Output
Output Method Relay contact
Number of Output 12, (4 X 3 Common)
Relay Contact 250V, 10A (NAIS JQ1P Series)
2-4) Analog input/output
Analog Input
Temperature Sensor NTC 3
0~1VDC, 4~20Madc 2 (sensor power 24V )
Declination Revision Software
Analog Output
Number of Channel 3 channel
Output Method 4~20mA
Setting Form software
2-5) Communication feature
Communication
Communication Method RS485(half-duplex), 2 Channel
Communication Speed 4800, 9600, 19200, 38400 BPS
Parity None, Data 8bit, Stop 1bit
Communication Distance 1.2Km (maximum)
Suggested Cable BELDEN 9841(2) or 8761
2-6) Installation features
Field Conditions
Install Place Indoor
Operation Temperature -10 ~ 60 ℃
Storage Temperature -30 ~ 80 ℃
Operation Humidity Non-humidity 5~95%