Conotec CNT-WJ24 Instruction Manual

Version 2.0.0(2024.03.22) WWW.CONOTEC.CO.KR
CONOTEC CO., LTD.
DIGITAL TEMPERATURE CONTROLLER
Instruction Manual
CNT-WJ24 , CNT-WJ24-1
• A user manual for this product is posted on the company website.
• Please download the technical document and communications
manual on the company website
01 Safety precautions
Please read the safety precautions carefully for correct
operation of the product.
※ The specifications and dimensions specified in this instruction
manual may be changed without any notice for performance
enhancement.
Warning
!
1. This product was not made as a safe device. Therefore, this
product should be attached with dual safety devices if it is used
for the control purposes (e.g. a device vulnerable to accident and
property damage, etc.).
2. Do not wire, inspect or service this product while the power is
being supplied.
3. You must attach this product to a panel. Otherwise, it may cause
an electric shock.
4. When connecting the power, you must check the terminal number.
5. Do not ever disassemble, process, modify or repair this product.
Caution
!
1. Please make yourself familiar with all the operation instructions,
safety precautions and warnings before using this product.
Comply with related specifications and capacity requirements
2. Do not wire or install this product to any unit with high inductive
load (e.g. motor, solenoid, etc.).
3. Use a shielded cable with a proper length when extending a sensor.
4. Do not use any part that generates an arc when used in the same
power or directly switched in close proximity.
5. Keep the power cable away from a high-voltage cable and do not
install this product in any place that is full of water, oil and dust.
6. Do not install this product in any place that is exposed to direct
sunlight or rain.
7. Do not install this product in any place that is subject to strong
magnetic power, noise, vibration or shock.
8. Keep this product away from any place that generates strong
alkaline or acid substances. Use a separate pipe.
9. Do not sprinkle water onto this product for cleaning when
installing it in the kitchen.
10. Do not install this product in any place where the temperature/
humidity ratings are exceeded
11. The sensor cable should not be cut or cracked..
12. Keep the sensor cable away from a signal cable, a power cable
or a load cable. Use a separate pipe.
13. Keep in mind that the follow-up service will not be available if
this product has been arbitrarily disassembled and modified
14. symbol on the terminal wiring diagram indicates a safety
statement that alerts a warning or caution.
15. Do not use this product near any device generating strong
high-frequency noise (e.g. high-frequency welding machine
high-frequency sewing machine, high-frequency radio,
large-capacity SCR controller, etc.).
16. Using this product in any method other than those specified by
by the manufacturer may lead an injury or a property damage
17. The product is not a toy. Keep it away from children.
18. The product should be installed only by an expert or
a qualified person.
19. The company will not be liable for any damage caused by the
violation of the above warnings and cautions or by a consumer's fault
Danger
!
Caution: Risk of electric shock
!
• Electric shock - Do not touch the AC terminal while the current is flowing.
It may cause an electric shock.
• Please intercept input power surely when input power check
02 Model Types
Temp.Humi
Model Sensor Control Output Power
Range
NTC Relay Contact - 55.0 ℃ ~
AC / DC
CNT-WJ24
(2EA)
10K, + 99.9 ℃
22 ~ 36V
RS485 communication
SHT
Relay Contact 10 % ~ 500mA
CNT-WJ24-1
30 or more
(1EA) 90% Rh
03 Components
DC 24V / RS-485 OUTPUT
HUMI / TEMP
Temperature MADE IN KOREA
Humidity sensor
TIME SET
Night/Day BUZZER KEY
ILLUMINATION
detection sensor
POWER HEAT RAIN
OPEN/CLOSE
4
Output delay time settings
Power,Heater,Non-detection sensor LED
(RED / GREEN / YELLOW)
04 Terminal wiring diagram
[ CNT - WJ24 ]
DC24V / RS485 OPEN/CLOSE Output
DC24V + RS485 + OPEN A
Red White Red White
DC24V - RS485 - OPEN C
Black Green Black Green
[ CNT - WJ24 - 1 ]
DC24V / CLOSE Output
DC24V + CLOSE A
Red White
DC24V - CLOSE C
Black Green
[ CNT - WJ24 ]
DC24V+ (Red/R) OPEN A (Red/R)
RS485+ (White/W) CLOSE A(White/W)
* Input Power and * Open and Close Output *
Communication *
* Open & Close *
* Power & RS485 *
※ A connection sticker is attached to the end of the cable.
Connection to specification. For input power,
it can be used in both AC and DC.
05 Function details
Time Set
※ Set delay time of OPEN/CLOSE output operated according to rain detection
OPEN delay time CLOSE delay time OPEN delay time CLOSE delay time
0 0 SEC 0 SEC 4
1 10 SEC 10 SEC 5
2 30 SEC 10 SEC 6
3 1 MIN 10 SEC 7
Function
Rain detection
Principle of Operation
Output Control
1 If rain is detected on only one side of the sensing plate,
Rain detection
the green LED is lit and the heater on the sensing plate operates
Output Control
2 If rain is detected on at least two sides of the sensing panel,
an amber LED will illuminate and open
If the sensor panel is detected to be dry on at least two sides,
the yellow LED will turn off and close
If rain is not detected on all three sides of the sensing plate and
3
only one or two sides are detected, it is determined that dirt or
foreign substances are stained on the sensing plate and dirt detection occurs.
If dirt or foreign substances appear on the detection panel,
4
or if it is not dried well for a long time, the buzzer will be automatically
returned and the buzzer will disappear.
5 Day/night is judged by day/night detection sensors to prevent dew
Buzzer key
formation on the sensing plate at night by heater heating.
The heater temperature of the sensing plate is automatically
6
controlled according to the operating principles of the room
temperature sensor and the day/night sensor.
7 If you press the buzzer key for more than 3 seconds,
you can switch to the buzzer on/off mode.
(There's a beep sound when changing the mode.)
8 The cause of the alarm is if there is an abnormality in the internal
sensor element or part, or if dirt and foreign substances occur
in the detection panel
If an ER1 error is detected during the communication data,
9
it will be temporarily booted to its initial value and make an A/S request to us.
CLOSE A
Precautions
If there is a foreign object on the sensing panel, the cause of the
1
malfunction is So, please clean it regularly.
CLOSE C
If abnormal substances, including bird droppings, are buried on the
2
detection plate, it may cause corrosion, so wipe it off as soon as possible.
3
Please avoid installing in places with strong lighting, including streetlights.
4 If water enters the product, it may cause failure,
so do not let water enter the product.
The mute function (booster OFF) prevents buzzing when an alarm
5
is raised (see operating principle for the buzzer on/off method)
If the condition LED blinks on the lower plate of the product and the
6
buzzer continues to sound, there is an abnormality in the internal
sensor element or part, so please request an after-sales service to us.
7
Wiring in accordance with the single self-determination line.
[ CNT - WJ24 - 1 ]
06 Communication interface
DC24V+ (Red/R)
* Equipped with bulit in protocols RS485 MODBUS RTU.
* Asynchronous 2-wire half-duplex communication method.
CLOSE A (White/W)
* Communication distance : 1.2Km
* Communication Speed : 1200 / 2400 / 4800 / 9600 / 19200BPS
* Open and Close Output *
* Start Bit : 1Bit, Stop Bit : 1Bit, Parity Bit : None, Data Bit : 8Bit
* Power & Close *
■ Interface
Applicable specification
Max. Number of Connections
Communications method
Communications speed
Communications distance
Communications Protocol
Start Bit, Stop Bit
Parity Bit , Data Bit
[ Func 0x02 : Read Discrete Inputs ]
[ Request ]
Sub start address number of data
products
command high low
address
byte byte
1BYTE 0x02 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE
2 MIN 10 SEC
[ Response ]
0 SEC 30 SEC
Sub
Number
10 SEC 1 MIN
products command Data
of data
address
30 SEC 2 MIN
1BYTE 0x02 1BYTE 1BYTE 1BYTE 1BYTE
[ MAP ]
NO Address Description
Temperature sensor open error
Temperature sensor short error
Humidity sensor open error
100001 0000
Humidity sensor short error
Product Abnormality
Filth Detection
[ Func 0x03 : Read Holding Registers ]
[ Request ]
start address number of data
Sub
products command high low
address byte byte
1BYTE 0x04 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE
[ Response ]
Sub
Byte
products command
high
numbers
address
byte
1BYTE 0x04 1BYTE 1BYTE 1BYTE
[ Func 0x06 : Write Single Register ]
[ Request ]
writing address number of data
Sub
products command high low
address byte byte
1BYTE 0x06 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE
[ Response ]
writing address number of data
Sub
products
command high low
address
byte byte
1BYTE 0x06 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE
[ Func 0x10 : Write Multiple Registers ]
Several items of the setting values can be changed at a time.
When writing multiple registers, if any of the data has errors, all of them will not be written.
Use Func 0x06, as the Func 0x10 command is not available during autotuning.
[ Request ]
Sub writing address number of data
products
command high low
address
byte byte
1BYTE 0x10 1BYTE 1BYTE 1BYTE 1BYTE
[ Response ]
Sub writing address number of data
products
command high low
address
byte byte
1BYTE 0x10 1BYTE 1BYTE 1BYTE 1BYTE
[ MAP ] Func 0x03, 0x06, 0x10
NO Address Description
400001 0000 Temperature1 setting value
400002 0001 Temperature2 setting value
400003 0002 Temperature3 setting value
400004 0003 Temperature4 setting value
400005 0004 Humidity1 setting value
EIA RS485
32units(Address setting can be from 1~99)
2Wired Half-Duplex, Asynchronous
1200/2400/4800/9600/19200bps(Selectable)
Within 1.2Km
Modbus
Fixed 1Bit
Parity Bit : None , Data Bit : Fixed 8Bit
- Simple information, E.G. status,
can be received in the from of bits.
Request 01 02 00 00 00 01 B9 CA
CRC16
high low low high
Response
01 02 01 00 A1 88
byte byte byte byte
0 0 0 0 0 0 0 0
100001
CRC16
(0000)
low high
sensor
byte byte
openend
error
Value at
Range Unit
shipment
bit0 0:No error, 1:open error
bit1 0:No error, 1:short error
bit2 0:No error, 1:open error
bit3 0:No error, 1:short error
bit4 0:No error, 1:Error occurred
0:No error,
bit5
1:the generation of filth
- You can read the settings.
byte numbers =
CRC16
data numbers * 2
high low low high
data numbers = if 23
byte byte byte byte
receive total 23 data,
46 bytes
DATA1 DATA n
CRC16
low high low low high
...
byte byte byte byte byte
1BYTE 1BYTE 1BYTE 1BYTE
- You can change the setting one by one.
Func.06 Write Single
CRC16
Register is written correctly,
high low low high
byte byte byte byte
the contents of Repuest
and Response is same.
CRC16
high low low high
byte byte byte byte
DATA1 DATA n CRC16
Byte
high low low high high low low high high
numbers ...
byte byte byte byte byte byte byte byte byte
1BYTE 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE 1BYTE
data numbers
DATA1
Byte
= byte number * 2
high low low high
numbers
byte byte byte byte
1BYTE 1BYTE 1BYTE
Value at
Range Unit
shipment
-20.0 ~ 80.0℃ ℃ 20.0℃
-20.0 ~ 80.0℃ ℃ 20.0℃
-20.0 ~ 80.0℃ ℃ 20.0℃
-20.0 ~ 80.0℃ ℃ 20.0℃
0.0 ~ 100.0% % 20.0%