XJK-LG10D simple controller for refrigerated air dryer

Function:

Set

3 buttons

Display

3 bit 0.56 inch LEDs and 5 pcs of LED lights to show work status and alarm information.

Control

Control the work of compressor, detect and display temperature/pressure.

Control the work of drain valve based on preset value.

Control the work of motor fan condenser based on condenser pressure

Alarm

2 alarm signal input, contains overload and low pressure alarm.

6 alarm code can be displayed via LEDs

Drain control

Turn on the drain valve 2 ways, manual or auto.

Protect

Before turn on the compressor, the time of lock time is taken.

Off the compressor when there has alarm (overload, high pressure, low pressure, pressure sensor has fault)

Mounting

Panel mounting, size:3.4’’ wide by 4.76’’ tall

Technical parameter:

Rating voltage

AC 220V

Display

3 bit LED display temperature

Temperature accuracy

±1°C

Temperature detect range

-9 ~ 80°C

Temperature sensor

NTC 103AT

Pressure accuracy

±5 Psi

Pressure detect range

0 ~ 35 bar

Pressure signal

4 ~20 mA

Output

3 channels of relay (N.O), one for compressor, another for drain valve, the other for motor fan condenser

Connection

Supply a removable connector to connect

Function of button:

NO.

Button

Definition

1

(Add)

1. press to display pressure/ temperature value.
2. in set mode, press to add value
3. press and hold over 5 seconds to release alarm signal

2

(Minus)

1. in lock protect / waiting state, press to open drain valve by manual
2. in set mode, press to minus value

3

ON/OFF

1.  in standby state, press to turn on compressor.

2.  in running state, press and hold over 5 seconds to enter into set mode

3.  in set mode, press to choose the next parameter

4.  in set mode, press and hold over 5 seconds to save changed value and exit set mode

5.  in running state, press to turn off compressor.

1

Low temperature of evaporator

-9 ~ 20

°C

0

2

Max discharge pressure

250 ~ 400

Psi

375

3

Pressure to turn on the motor condenser

250 ~ 400

Psi

300

4

Pressure to turn off the motor condenser

250 ~ 400

Psi

200

5

Delay time to turn on auto drain

1 ~ 10

S

1

6

Compensation of temperature

-9 ~ 9

°C

0

7

Drain valve on time

1 ~ 10

S

2

8

Drain valve off time

1 ~ 10

S

8

9

Lock time

1 ~ 5

min

3

Alarm information:

Alarm code

Phenomenon

E1

Compressor overload signal is input, compressor stop work.

E2

Pressure of condenser too high ( pressure value > preset of 'Max discharge pressure'), compressor stop work.

E3

Temperature of evaporator too low(temperature value < preset of 'low temp. of evaporator'), LED displays alarm code, compressor not stop work. 

E4

Low pressure signal (pressure switch) is input, compressor stop work.

E5

Pressure sensor has fault ( no pressure signal input), compressor stop work.

E6

Temperature sensor has fault (temperature signal is disconnected or short connect with GND) , compressor not stop work.