Air Handling Unit

Controller

MEX-210A Manual

(주) 엠에스티

198-6, Angok-ro, Bucheon-si, Gyeonggi-do, Republic of Korea

Tel. 032-343-2577~8 / Fax. 032-343-2579 / Mail. mst2577@hanmail.net

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◆ Table ◆

□  Introduction

1-1  Basic Specifications	2

1-2  Product Features	3

1-3  Input/Output Specifications	4

□ Outside View and Display

2-1  Outside View	6

2-2  Dimension	7

2-3  Display	7

□  Menu Composition

3-1  Menu Structure	8

3-2  Menu Approach Level	9

3-3  Menu Composition Method	10

3-4  Basic Operation setting	13

3-5  Reserved Operation Setting	14

3-6  Alarm Setting	14

3-7  Extended Operation setting	15

3-8  Device Environment Setting	16

3-9  Error Correction Setting	17

3-10 Device Test Mode	17

3-11 Shipping Environment Setting	18

3-12 Enterprise Information	18

□  Operation State

19

□  Alram Check

5-1  Alarm History	19

5-2  Alarm Type	20

□  Check for Problems

21

□  Connection Diagram

22

□  Application Fields

23

□ Introduction

MEX210 is based on micro-processor and a device that control the air-conditioner and the air handling unit stably and effectively. This device alarms and stores the alarm history when an alarm is occurred and makes easy to maintain and analyze cause of faulty. With a large LCD and touch many information are displayed on a screen, and so a user can see the information at a glance. Also It is easy to manipulate and set using structured menu.

1-1 Basic Specifications

(1) Powers

Input Voltage	DC 24V / 0.6A AC 24V / 0.6A
Contact Capacity	SSR Output 3A
Voltage Withstand	1500V 3min.

(Warning) You must use only the TR or the SMPS supplied from our company. We have no responsibility when you use others.

(2) CPU and LCD

CPU	ATmega2560, 7.3728MHz
LCD	240x128 DOTS, 5 inch, TOUCHfunction

(3). Digital Input/Output

Digital Input	10 EA
Digital Output	12 EA

(4) Analog Input

Analog Input	4~20mA 3EA (AI1:Temperature, AI2:humidity)
	NTC (10K@25'C) 3EA (NTC1:Temperature)

(5) Analog Output

Analog Output	4~20mA 3EA (AO1:Cooling Proportion, AO2:Heating Proportion, AO3: Humidity Proportion)

(6) Communication

Communication method	RS485, ModBus RTU Protocol support
Communication spec.	8Bits Data, No Parity Bit, 1 Stop Bit 4800, 9600, 19200, 38400 BPS

(7) Temperature

Operation Temp. Range	5.0 ~ 85.0℃
Setting Temp. Range	5.0 ~ 50.0℃
Deviation Temp. Range	0.1 ~ 10.0℃

(8) Humidity

Operation Humidity Range	20.0 ~ 80.0%
Setting Humidity Range	20.0 ~ 80.0%
Response Humidity Range	0.1 ~ 10.0%

(9) STEP

Cooling STEP	1~2 STEP, Capable of Cooling Proportion
Heating STEP	1~4 STEP, Capable of heating Proportion
Humidification STEP	1~2 STEP, Capable of Humidification Proportion
Dehumidification STEP	1~2 STEP, Capable of Dehumidification Proportion

1-2  Product Features

(1) Large Graphic LCD and Touch Function

With a large LCD and touch many information are displayed on a screen and user oriented interface

is offered to easy manipulation and awareness.

(2) Balancing Operation Function

The Life is long because the air conditioner, the heater, and the humidifier is operated in turn

to equally control the running of each STEP.

(3) COMPRESSOR Protection Function

Prevents compressor from damage by suppressing compressor trembling and frequent running.

(4) COMP. Switchover

when an alarm is occurred using COMP 2STEP, an other COMP is operated automatically.

(5) Centralized Monitoring Control Function(option)

MICROPROCESSOR CONTROLLER has built-in RS485 communication port and is connected to RMU.

So all functions are performed in RMU.

(6) Alarm History Memory

Alarm history function can store 98 alarms and device maintenance and fault analysis is easily done.

(7) Setting Protection Function

Device's setting values remain after power failure

(8) Air Blower Delay Time

The FAN delay function is worked to release latent heat and prevent inner side from condensation

water when device is OFF.

(9) Miniaturization and Slim

It have a good space availability owing to union type of control board and LCD.

(10) Reserved Operation Function

User can operate and stop the device. Therefore it can be operated economically.

(11) Clocking Function

A RTC is built-in, the current time is displayed, alarm/release time can be stored, and

reservation operation/stop function can be carried out.

(12) Locking Function

An operator and administrator can have their password and the change of the value important to

operation setting value can be controlled.

(13) Various Digital Input/Output Port and Analog Input/Output

There are ten digital inputs and twelve digital outputs. In addition, three analog inputs and three

4~20mA outputs can be used.

(14) Control Component selection

Current temperature/humidity can be calculated by selecting one among sensor, 4~20mA of AI or NTC.

1-3 Input/Output Specifications

(1) Digital input signal

Name	Function	Active State
1	compressor1 alarm signal(C1A)	fault (open)
2	compressor2 alarm signal(C2A)	fault (open)
3	redundant
4	water leakage alarm signal(LEAK)	fault (closed)
5	Air Blower alarm signal(FA)	fault (open)
6	heater alarm signal(HEATER)	fault (open)
7	humidification alarm signal(HUMI)	fault (open)
8	remote control signal(REMOTE)	run (open)
9	water level-MID	sensed (closed)
10	water level-LOW	sensed (closed)

[Chart.1]

(2) Digital output signal

Name	Function	Active State
A	Air Blower(FAN)	ON
B	sol valve1(CS1)	ON
C	compressor1(C1)	ON
D	sol valve2(CS2)	ON
E	compressor2(C2)	ON
F	heater1(RH1)	ON
G	heater2(RH2)	ON
H	heater3(RH3)	ON
I	heater4(RH4)	ON
J	humidification기1(HH1)	ON
K	humidification기2(HH2)/water supply(WS)	ON
L	drainage(DR)	ON

[Chart.2]

(3) RS-485 communication

NO.	Function	Target
1	local communication	temperature/humidity sensor
2	system communication	central monitor unit(RMU)

[Chart.3]

(4) Analog input signal

NO.	Function	Type
1	temperature(-50 ~ 99.9℃)	4~20mA
2	humidity(0~99.9%)	4~20mA
3	redundant	4~20mA
4	temperature(5.0 ～ 85.0℃)	NTC (10K@25'C)
5	redundant	NTC
6	redundant	NTC

[Chart.4]

(5) Analog output signal

NO.	Function	Type
1	cooling proportion output	4~20mA
2	heating proportion output	4~20mA
3	humidification proportion output	4~20mA

[Chart.5]

□ Outside view and Display

2-1 Outside view

[Figure.1]  Outside view

●  operation/stop : Use when operate or stop device.

●  mode  : Use when select menu or operate at lock mode.

●  up     : Use when increase menu value or enter the menu after menu selection.

●  down  : Use when decrease menu value or operate/stop immediately during

operation delay or stop delay.

● LED         : Flashes during operation and blinks when an alarm is occurred.

2-2 Dimension

[Figure.2] Dimension

2-3 Display

[Figure.3] Display

□ Menu Composition

3-1 Menu Structures

1. basic operation setting			2. reservation operation setting			3. alarm setting			4. extended operation setting
1. setting temperature 2. setting humidity 3. cooling deviation 4. heating deviation 5. dehumidification heating deviation 6. humidification deviation 7. dehumidification deviation 8. operation delay 9. stop delay 10. back light			Mon.:operation time -stop time Mon.:operation time -stop time Tue.:operation time -stop time Wed.:operation time -stop time Thu.:operation time -stop time Fri.:operation time -stop time Sat.:operation time -stop time			1. flow detection delay 2. high temp. alarm 3. low temp. alarm 4. high humidity alarm 5. low humidity alarm			1. operation mode setting 2. control component selection 3. cooling setting (1). operation delay (2). stop delay (3). alarm delay (4). reactivation delay 4. humidification setting (1). drainage interval (2). drainage time 5. no humidification during cooling 6. power recovery function 7. system address setting 8. system communication rate 9. local address setting 10. local communication rate
5. device environment setting			6. error correction setting			7. device test mode			8. Shipping Environment setting
1. cooling step 2. heating step 3. humidification step 4. dehumidification step 5. output port change			1.temperature calibration 2. humidity calibration 3. time setting 4. touch calibration			1. digital output 2. digital input 3. proportion output 4. proportion input			1. test mode 2. alarm history delete 3. operation history delete 4. cooling proportion 4mA 5. cooling proportion 20mA 6. heating proportion 4mA 7. heating proportion 20mA 8. humidification proportion 4mA 9. humidification proportion 20mA

[Chart.6]

3-2 Menu Approach Level

approach level	USER 1 (CODE = 8)	SERVICE 1 (CODE = 13)	SERVICE 2 (CODE = 803)	SERVICE 3 (CODE = 1308)
menu able to approach	basic environment setting error correction setting	basic environment setting reservation operation setting alarm environment setting extended operation setting device environment setting error correction setting device test mode	basic environment setting reservation operation setting alarm environment setting extended operation setting device environment setting error correction setting device test mode	basic environment setting reservation operation setting alarm environment setting extended operation setting device environment setting error correction setting device test mode Shipping Environment setting
hold time	1 min.	10 min.	30 min.	1 hour

[Chart.7]

1. In main screen of Figure.5  touches "setting" and Approach Code Input is displayed similar to Figure.4. (when you enter the menu again after selecting menu by input approach code, you don't needed to enter the approach code input)

2. Touch TENKEY, input approach code, then  approach code input is completed.

3. If you want to change approach level or to operate in lock mode before hold time, press the mode button for three seconds.

4. Device environment setting, device test mode, and Shipping Environment setting can be done during stop.

5. In lock mode Icon is display on LCD

[Figure.4] Approach code input display

3-3 Menu Composition Method

	Touches "SET UP" in main screen of Figure.5.
[Figure.5] Main Screen
	(way1). Touch or and select a screen where needed item is. (way2). Press mode button and select needed item.
[Figure.6] Setting
	(way1). Touch needed item and touches in the bottom of screen. (way2). Touch needed item two times. (way3). Press mode button , select needed item, press , then you can go to the menu in next step.
[Figure.7] Setting
	1. Touch item what you want to change. 2. Use TENKEY to select needed setting value. 3. Touch TENKEY then setting is completed. The Setting range is displayed under TENKEY. Alarm is ringing and basic mode is displayed in the screen if the setting range is out of scope.
[Figure.8] Device environment

* Touch  then  you can go to menu step.

* The setting is ended when you do not press "touch" for one minute.

Power Recovery function setting

	1. Touch ON/OFF to select ON/OFF. 2. Touch then setting is completed.
[Figure.9] Extended operation

Output modification setting

	1. USE/NO USE to select USE/NO USE. 2. Touch the first number and select the RELAY number what you want to change using , . 3. Touch the second number and select the RELAY number what you want to change using , . 4. Touch then setting is completed.
[Figure.10] Output modification

reservation operation을 setting

	1. Touch hour or minute what you want to change. 2. Select needed setting value using TENKEY. 3. Touch in TENKEY then setting is completed. 4. You can set reservation time by doing the above process from 1 to 3 repeatedly.
[Figure.11] Reservation operation setting

Clock setting

	1. Select Year/Month/Date/Day/Hour/Minute/Second value select. 2. Touch / / / / / / in the right side of screen and then setting is completed.
[Figure.12] Clock setting

Touch Calibration

	(way1). Touch “4> touch calibration” and touch . (way2). Touch “4> touch calibration” two times. (way3). Press mode button and select “5> touch calibration” and press button you can go to STOP 1 as displayed in Figure.14.
[Figure.13] Error correction
	Touch exactly the center of icon "+" with sharp pen like stylus in Figure.14 and you can go to STEP 2 as displayed in Figure.15
[Figure.14] Touch calibration STEP1

	When you touch “+” Icon then you can go to STEP 3 as displayed in Figure.16.
[Figure.15] Touch calibration STEP 2
	Touch "+" Icon in Figure.16 then touch screen calibration is completed as displayed in Figure.17.
[Figure.16] Touch calibration STEP 3
[Figure.17] Touch calibration completion

3-4 Basic Operation Setting

NO.	ITEM	RANGE	Basic Value	STEP	Unit	VIEW	ACCESS
1	setting temperature	5.0~50.0	24.0	0.1	temperature('c)	USER1	USER1
2	setting humidity	20~80	45.0	1	humidity(%)	USER1	USER1
3	cooling deviation	0.1~10.0	1.0	0.1	temperature('c)	SVC1	SVC1
4	heating deviation	0.1~10.0	1.0	0.1	temperature('c)	SVC1	SVC1
5	dehumidification heating deviation	0.1~10.0	1.0	0.1	temperature('c)	SVC1	SVC1
6	humidification deviation	1.0~10.0	3.0	0.1	humidity(%)	SVC1	SVC1
7	dehumidification deviation	1.0~10.0	3.0	0.1	humidity(%)	SVC1	SVC1
8	operation delay	1~180	3	1	second	USER1	USER1
9	stop delay	1~180	3	1	second	USER1	USER1
10	back light mode	0~60 (Zero is always ON state)	0	1	minute	USER1	USER1

[Chart.8]

1. setting temperature : set reference temperature for cooling/heating operation.

2. setting humidity : set reference humidity for humidification/dehumidification operation.

3. cooling deviation : set start of cooling operation and deviation between COMP1 and COMP2.

Interior temperature >= setting temperature+(cooling deviation×1) ; COMP1 step operation

Interior temperature >= setting temperature+(cooling deviation×2) ; COMP2 step operation

4. heating deviation : set start of heating operation and deviation between heater 1, 2, 3, and 4.

Interior temperature <= setting temperature-(heating deviation×1) ;heating 1 step operation

Interior temperature <= setting temperature-(heating deviation×2) ;heating 2 step operation

Interior temperature <= setting temperature-(heating deviation×3) ;heating 3 step operation

Interior temperature <= setting temperature-(heating deviation×4) ;heating 4 step operation

5. dehumidification heating deviation : set start of heating operation during dehumidification operation

and deviation between heater 1, 2, 3, and 4.

Heater is operated by not heating deviation but dehumidification heating deviation when

dehumidification device is operating.

Interior temperature <= setting temperature-(dehumidification heating deviation×1) ;heating 1 step

operation

Interior temperature <= setting temperature-(dehumidification heating deviation×2) ;heating 2 step

operation

Interior temperature <= setting temperature-(dehumidification heating deviation×3) ;heating 3 step

operation

Interior temperature <= setting temperature-(dehumidification heating deviation×4) ;heating 4 step

operation

6. humidification deviation : set start of humidification operation and deviation between humidification 1

and 2.

Interior humidity <= setting humidity-(humidification deviation×1) ;humidification 1 step operation

Interior humidity <= setting humidity-(humidification deviation×2) ;humidification 2 step operation

7. dehumidification deviation : set start of the dehumidification operation and  deviation between

COMP 1 step and COMP 2 step

Interior humidity >= setting humidity+(dehumidification deviation×1) ;COMP 1step operation

Interior humidity >= setting humidity+(dehumidification deviation×2) ;COMP 2step operation

8. operation delay : set delay time to prevent several devices operated simultaneously when operation

is started.

9. stop delay : set delay time to release holding heating when you stop device.

10. back light mode : set time duration from back light ON to back light-out. Zero means back light

is always on.

3-5 Reservation Operation Setting

ITEM	start time ~ stop time
SUN	09:00 ~ 18:00
MON	08:20 ~ 21:45
TUE	09:00 ~ 14:00
WED	08:00 ~ 21:00
THU	09:00 ~ 09:00
FRI	09:00 ~ 18:00
SAT	07:30 ~ 18:00

[Chart.9]

1. Operated at start time and be stopped at stop time.(It is applied only when reservation operation

mode is set.)

2. If you don't operate at a certain day, set the operation time and the stop time to be equal.

3. It is not operated when operation time is stop time.

4. You can start/stop the operation by pressing operation/stop buttons during reservation operation.

5. It is not operated by pressing operation/stop buttons after operation time.

3-6 Alarm Setting

NO.	ITEM	RANGE	Basic Value	STEP	Unit	VIEW	ACCESS
1	flow detection delay	1~180	60	1	초	SVC1	SVC1
2	high temp. alarm	0:ban,0.1~99.9	40.0	0.1	temperature('c)	SVC1	SVC1
3	low temp. alarm	0:ban,0.1~99.9	10.0	0.1	temperature('c)	SVC1	SVC1
4	high humidity alarm	0:ban,0.1~99.9	80.0	0.1	humidity(%)	SVC1	SVC1
5	low humidity alarm	0:ban,0.1~99.9	10.0	0.1	humidity(%)	SVC1	SVC1

[Chart.10]

1. flow detection delay time : Air Blower alarm detection is started from flow detection time after FAN is         operated. (Zero means always detection)

2. high temp. setting : set the temperature in which high temperature alarm is occurred. Zero means no

ringing of alarm.

3. low temp. setting : set the temperature in which low temperature alarm is occurred. Zero means no

ringing of alarm.

4. high humidity setting : set humidity in which high temperature alarm is occurred. Zero means no

ringing of alarm.

5. high humidity setting : set humidity in which low temperature alarm is occurred. Zero means no

ringing of alarm.

3-7 Extended Operation Setting

NO.	ITEM	RANGE	Basic Value	STEP	Unit	VIEW	ACCESS
1	operation mode setting	1:local/remote 2:reservation	local/remote			SVC1	SVC1
2	control component selection	1:sensor 2:AI 3:NTC	sensor			SVC1	SVC2
3	cooling setting (1). operation delay (2). stop delay (3). alarm delay (4). reactivation delay	1~180 1~180 1~180 1~180	5 30 60 60	1 1 1 1	sec. sec. sec. sec.	SVC1	SVC2
4	humidification setting (1). drainage interval (2). drainage time	0~48 1~10	20 3	1 1	hour min.	SVC1	SVC2
5	No humidification during cooling	1:ON 0:OFF	OFF			SVC1	SVC2
6	power recovery function setting	1:ON 0:OFF	ON			SVC1	SVC2
7	system address setting	1~128	1			SVC1	SVC2
8	system communication rate	1:4800 2:9600 3:19200 4:38400	9600		BPS	SVC1	SVC1
9	local address setting	1~128	1			SVC1	SVC2
10	local communication rate	1:4800 2:9600 3:19200 4:38400	9600		BPS	SVC1	SVC1

[Chart.11]

1. operation mode setting

(1) local/remote : Device is operated/stoped by operation/stop buttons and  remote operation/stop

control signal input.

(2) reservation : Device is operated/stoped by reserved operation/stop time. “Reservation“ Icon is

displayed in LCD.

2. control component selection

(1) sensor : Receives current temperature/humidity value from sensor.

(2) AI : Temperature is calculated using AI1(analog input1) 4~20mA and humidity is calculated

using AI2(analog input2) 4~20mA. Touch temperature range setting icon in Figure.16

then  screen is displayed like Figure.16 and you can set the maximum and minimum value

of AI temperature. AI humidity limit is from zero to 99.9%.

(3) NTC : Temperature is calculated using NTC and humidity is calculated using AI2(analog input2)

4~20mA.

[Figure.18] control component selection	[Figure.19] AI temperature limit value setting

3. cooling setting

(1) operation delay : set delay time from solenoid valve ON to COMP. ON starting air conditioner

operation.

(2) stop delay : set delay time from solenoid valve OFF to COMP. OFF when stop air conditioner

operation.

(3) alarm delay : set delay time from cooling alarm input to cooling alarm ringing.

(4) reactivation delay : After reactivation time elapsed and air conditioner is OFF, reactivation can be

started.

4. humidification setting

(1) drainage interval : set drainage interval which decides when the drainage will be performed,

whenever humidification device is operated.

(2) drainage time : set drainage time which decides how long does drainage will be done during

humidification device operation, when drainage interval is prepared.

5. NO humidification during cooling  : set whether prohibit humidification or not during cooling.

6. power recovery function setting : set whether recover to operation/ stop state prior to power failure

or not when performs power recovery.

7. system address setting : set ID used for system RS485 communication.

8. system communication rate : set system communication rate.

9. local address setting : set ID used for local RS485 communication.

10. local communication rate : set local communication rate.

3-8 Device Environment Setting

NO.	ITEM	RANGE	Basic Value	STEP	Unit	VIEW	ACCESS
1	cooling step	0:stop 1~2:1~2 STEP 3:proportion	2 STEP			SVC1	SVC2
2	heating step	0:stop 1~4:1~4 STEP 5:proportion	4 STEP			SVC1	SVC2
3	humidification step	0:stop 1~2:1~2 STEP 3:proportion	2 STEP			SVC1	SVC2
4	dehumidification step	0:stop 1~2:1~2 STEP 3:proportion	2 STEP			SVC1	SVC2
5	output modification	use/no use modification RELAY <->modification RELAY	no use 1 <-> 1			SVC1	SVC2

[Chart.12]

1. cooling step : set step in which air conditioner is operated.

2. heating step : set step in which heater is operated.

3. humidification step : set step in which humidification is operated.

4. dehumidification step : set step in which dehumidification is operated.

5. output modification : Change output port with an other to easy A/S when output port is out of order.

3-9 Error Correction Setting

NO.	ITEM	RANGE	Basic Value	STEP	Unit	VIEW	ACCESS
1	temperature calibration	-20.0~20.0	0.0	0.1	temperature('c)	USER1	USER1
2	humidity calibration	-20.0~20.0	0.0	0.1	humidity(%)	USER1	USER1
3	time setting					USER1	USER1
4	touch calibration					USER1	USER1

[Chart.13]

1. temperature calibration : set value to correct deviation in temperature value that is read from

temperature/humidity.

2. humidity calibration : set value to correct deviation in humidity value that is read from

temperature/humidity.

3. Clock setting : set current time.

4. touch calibration : You can correct the coordinates (x,y) value of touch screen when touch does not

work well.

3-10 Device Test Mode

Mode used to monitor generally for easy A/S during the test operation of device and must to be used by a well-skilled person.

NO.	ITEM	RANGE	Basic Value	STEP	Unit	VIEW	ACCESS
1	digital output					SVC1	SVC1
2	digital input					SVC1	SVC1
3	proportion output					SVC1	SVC1
4	proportion input					SVC1	SVC1

[Chart.14]

1. digital output : You can test twelve digital output and touches A to L for their output to be

ON/OFF.

2. digital input : You can test ten digital input and  current 1 to 10 inputs are displayed as

OPEN/CLOSE state.

3. proportion output : Use TENKEY to select a value between 0% and 100% and touch  of TENKEY.

Then 4~20mA for each percentage value is output from three analog output stage.

4. proportion input : ADC values of analog input signal(AI1~AI3) are displayed.

* Device test can be performed during device stop.

[Figure.20] digital output	[Figure.21] digital input	[Figure.22] proportion output

3-11 Shipping Environment Setting

Mode set for release and must be used by only well-skilled engineer for this device.

Contact us to modify this mode because it is intended only to enhance accuracy of product.

NO.	ITEM	RANGE	Basic Value	STEP	Unit	VIEW	ACCESS
1	test mode	1:ON 0:OFF	OFF			SVC3	SVC3
2	alarm history delete	1:YES 0:NO	NO			SVC3	SVC3
3	operation history delete	1:YES 0:NO	NO			SVC3	SVC3
4	cooling proportion 4mA	8000~65535	12950			SVC3	SVC3
5	cooling proportion 20mA	8000~65535	64850			SVC3	SVC3
6	heating proportion 4mA	8000~65535	12950			SVC3	SVC3
7	heating proportion 20mA	8000~65535	64850			SVC3	SVC3
8	humidification proportion 4mA	8000~65535	12950			SVC3	SVC3
9	humidification proportion 20mA	8000~65535	64850			SVC3	SVC3

[Chart.15]

1. test mode : Make all RELAY and operation LED to be ON.

2. alarm history delete : Initialize alarm history.

3. operation history delete : Initialize pump and total operation time of cooler.

4. cooling proportion 4mA: set PWM value that generates the 4mA output of cooling proportion.

5. cooling proportion 20mA: set PWM value that generates the 20mA output of cooling proportion.

6. heating proportion 4mA: set PWM value that generates the 4mA output of heating proportion.

7. heating proportion 20mA: set PWM value that generates the 20mA output of heating proportion.

8. humidification proportion 4mA: set PWM value that generates the 4mA output of humidification

proportion.

9. humidification proportion 20mA: set PWM value that generates the 20mA output of humidification

proportion.

* Shipping Environment setting can be performed during device stop.

3-12 Enterprise Information

Enterprise information is displayed pressing briefly mode button  in the main screen of Figure.5.

Then  pressing briefly mode button  or touching  you can go to the main screen.

[Figure.23] Enterprise information

□ Operation state

The operation time of Air Blower and Cooling/Heater are displayed by accumulated sum. So we can

easily forecast the time for change and check of consumables and do maintenance.

Touch "RUN STATE" in the main screen , then  the operation time of Air Blower and

Cooling/Heater are displayed like Figure.26.

Touch  or a key and a touch does not press for one minute, reading of operation state is ended.

[Figure.26] Operation state

□ Alarm Reading

5-1 Alarm History

NO.	alarm content	alarm/release	date	time
1	alarm content #1	alarm/release	Month/Day	hour:min.
2	alarm content #2	alarm/release	Month/Day	hour:min.
3	alarm content #3	alarm/release	Month/Day	hour:min.
4	alarm content #4	alarm/release	Month/Day	hour:min.
| |	| |	| |	| |	| |
98	alarm content #98	alarm/release	Month/Day	hour:min.

[Chart.16]

1. The occurrence/release date and alarm content are stored when an alarm is occurred/released.

2. Ninety eight content can be stored in maximum and the first alarm is deleted history and a new one is stored after ninety eight.

3. If alarm is occurred, warning sound is ringing, the operation LED blinks, and  icon is displayed. Press the key, then warning sound is stopped.

5. The compressor1 and compressor2 alarm must be manually released after removal of alarm cause, then  other alarms become automatically released.

6. Touch "ALARM" in the main screen , then  alarm history is displayed like Figure.27.

7. Releasing manually compressor1 and compressor2 alarm, you must delete source of alarm and touch "RELEASE" in the alarm history screen of Figure.27 , then  it is displayed like Figure.28. Touch  and touch ,then  the alarm is released.

8. Remove all sources of alarms to delete alarm history, touch "ALL DELETE" in alarm screen of Figure.27, and it is displayed like Figure.29. Touch  and touch ,then all alarm history is deleted.

[Figure.27] alarm history	[Figure.28] alarm release	[Figure.29] alarm delete all

5-2 Alarm Type

NO	alarm content	detection/release condition
1	compressor1	detect condition : digital input 1 is OFF release condition : digital input 1 is ON
2	compressor2	detection condition : digital input 2 is OFF release condition : digital input 2 is ON
3	water leakage	detection condition : digital input 4 is OFF release condition : digital input 4 is ON
4	air blower	detection condition : digital input 5 is OFF release condition : digital input 5 is ON.
5	heater	detection condition : digital input 6 is OFF release condition : digital input 6 is ON
6	humidifier	detection condition : digital input 7 is OFF release condition : digital input 7 is ON
7	sensor	detection condition : sensor is faulty (open/short) release condition : sensor is normal
8	high temperature	detection condition : Interior temperature > high temp. alarm release condition : Interior temperature <= high temp. alarm
9	low temperature	detection condition : Interior temperature < low temp. alarm release condition : Interior temperature >= low temp. alarm
10	high humidity	detection condition : Interior humidity > high humidity alarm release condition : Interior humidity <= high humidity alarm
11	low humidity	detection condition : Interior humidity < low humidity alarm release condition : Interior humidity >= low humidity alarm
12	water level	detection condition : water level-bottom input is detected, but water level-mid input is not detected. release condition : water level input is normal

[Chart.17]

□ Check for Problems

NO	symptoms	check procedure	actions
1	no power supply or no running	check the 24V input check CONTROLLER FUSE	check power supply change FUSE
2	no start after operation/stop button press	check if remote stop is set. check if operation mode is reserved	check ON/OFF of digital input(8). check reservation operation/stop time.
3	sensor alarm	check control component selection in menu and check connection of sensor, AI, or NTC. check if local communication rate of extended operation setting is set to 9600BPS, when control component is sensor.	check control component or check connection of sensor, AI, or NTC. set local communication rate of extended operation to 9600BPS.
4	output port is faulty	test ON/OFF of output port in device test mode.	change the faulty output port to port not used through output modification menu. (see Page.10)
5	output from non-correct port	check setting value in output modification menu. (see Page.10)	set output modification correctly in output modification menu. (see Page.10)
6	touch does not work well		correct touch by using touch calibration menu. (see Page.11)
7	compressor alarm can't be released	check ON/OFF of digital input 1 and 2, alarm input of compressor1 and 2	delete the source of compressor alarm.
8	you can' do menu setting	check approach level and check operation state. (can't set device environment setting, device test mode, and Shipping Environment setting during operation)	change approach level. change state to stop in device environment setting, device test mode, and Shipping Environment setting
9	proportion output 4~20mA is not accurate.	check if the reference 4mA and 20mA of each proportion output is set correctly in Shipping Environment setting.	set correctly the reference 4mA and 20mA of each proportion output in Shipping Environment setting.
10	humidification is not running in humidification condition	check if humidification prohibit during cooling is ON in extended operation setting	set humidification prohibit during cooling to ON in extended operation setting

[Chart.18]

□ Connection Diagram

□ Application Fields

1. Heat‧Humidity CONTROLLER (for Air Handling Unit)

2. Temperature CONTROLLER (for Cooler‧heater)

3. F‧F‧U CONTROLLER

4. Dry Cooler  CONTROLLER

5. Cpu Chiller CONTROLLER

6. Mushroom Cultivation CONTROLLER ( Dry/Wet Bulb method)

7. Low Temperature Depot CONTROLLER

8. Mushroom Cultivation CONTROLLER

9. Thermostat  CONTROLLER

10. Cooler CONTROLLER (Premium, Standard)

11. Air Handling Unit Remote Management System

12. Mushroom Cultivation remote Management System

13. F‧F‧U Remote Management System (Group control, Individual control)

※ It is possible to control temperature, humidity, pressure, carbon dioxide, and oxygen

together.

Product not included in existing item can be developed based on order specification.