Quick setup and connection of thermostats REX-C100, REX-C400, REX-C700, REX-C900. Overview of characteristics and use of the temperature controller REX C100 Rex c100 reset

choopokapra 26-09-2015 20:46

Good day to everyone who has looked into this topic! who has dealt with such a thermostat “Double digital PID temperature controller REX-C100” How it works, the pros and cons of this device. Is it possible to set it to a temperature of 1300C? Who took it where?

YUZON 27-09-2015 11:56

I can’t say anything about this regulator, but theirs (similar in appearance)
approximately the same characteristics (I use "Delta" - it is very similar, China, it is also in Africa - China, mainly - only the labels change)
The temperature is adjusted by the type of thermocouple
functionality for simple operations is quite enough
come on, smoke here
http://www.chipmaker.ru/topic/126050/

Dinamic_kr 27-09-2015 16:02

Previously, rexes came with a set upper limit of 400 degrees, but this parameter can be changed in the settings. Recently they began to be released with a set upper limit of 1200. At least a couple of weeks ago they sent me one.

ynhuk 27-09-2015 16:25

Take a temodat, like the one you have; it works like a second thermocouple.

choopokapra 27-09-2015 17:52

quote: Originally posted by YUZON:

come on, smoke here
http://www.chipmaker.ru/topic/126050/

thank you - I read it, I’ve already ordered it, I’ll test it when it arrives

choopokapra 27-09-2015 17:53

quote: Originally posted by ynhuk:
Take a temodat, like the one you have; it works like a second thermocouple.

chyuck 27-09-2015 18:07

quote: Originally posted by choopokapra:

choopokapra

Then exit the menu.

I'll give you a ton of settings, I haven't figured out half of them myself. When heating, if the temperature goes beyond the set one, then do auto-tuning, first menu, AGU parameter. he will adjust the parameters P, I, d himself, but for me he adjusts the temperature normally.

choopokapra 27-09-2015 18:19

quote: Originally posted by chyuck:

There are 2 menus, the first is the set 4sec button, and the second is set and “left”. To exit these menus, you press the same button as you entered. Navigate through the menu using the set button.
Go to the first menu and don’t change anything (there are all sorts of alarms there, etc.), scroll through the set button until LCK is displayed at the end and set it to 1000 - this is like permission to enter the second menu. (for some reason these values ​​are different in the descriptions) Then exit this menu as you entered.
Go to the second menu and make sure that SL 1 is 0000 (this is the type of thermocouple, for us it is type K) Next, go through the menu and set the parameters parameters SLL - 0 and SLH -1300 (this is the most important feature - these are the temperature limits, set which ones you need, the default is 400.
Then exit the menu.
Then close the thermocouple and controller input contacts for 5 seconds. should show the ambient temperature.
I'll give you a ton of settings, I haven't figured out half of them myself. When heating, if the temperature goes beyond the set one, then do auto-tuning, first menu, AGU parameter. he will adjust the parameters P, I, d himself, but for me he adjusts the temperature normally.

thank you, your information will be useful to me

Connection

To connect you will need:

1) Solid state relay (SSR-xxDA, in our example SSR-25DA);

2) Temperature sensor (thermocouple type K);

3) Connecting wires;

5) AC 220V network.

All connections are made according to the diagram shown on the thermostat:

Let's connect the temperature sensor, observing the polarity:

The negative connects to connector No. 9

Plus connects to connector No. 10

Let's connect the control output of the REX-C100 thermostat to the SSR-25DA solid-state relay:

Using a connecting wire, observing the polarity, we connect the control connectors of the solid-state relay and the control connectors on the thermostat.

Connector No. 4 – plus,

connector No. 5 – minus.

The load in our case is powered by 220V, just like the thermostat.

We connect the load through the relay; to do this, we connect one wire from the load to the switched output of the relay. We connect the second wire to connector No. 1 of the thermostat:

IMPORTANT: Before connecting 220V, make sure there is no voltage. Then connect the 220V power supply and the second relay output:

The thermostat power supply is connected to connectors No. 1, No. 2.

The second output from the relay to connector No. 2 of the thermostat.

This completes the connection.

Settings

Setpoint temperature.

The upper display - PV shows the current temperature,

The lower display – SV shows the setpoint temperature (the temperature that needs to be maintained)

Setpoint temperature setting:

1) Press the SET button, the SV display will begin to flicker, highlighting only the digit being changed.

2) Use the “up”, “down”, “left” buttons to change the value.

Setting the temperature sensor type.

To set the temperature sensor type:

2) Set the value COD=0000;

3) Press the SET button 1 time;

4) The SL parameter will be set to 1

5) Change the value of SL – 1 in accordance with the table and the type of sensor being connected:

If you need to set the limits of the regulation setpoint range (or change the default setting). For example, you control an electric boiler and you need to limit the control range from 20 to 90 degrees, so as not to defrost or overheat the heating system by mistake. It is necessary to establish regulation limits. Setting the upper limit of the setpoint temperature.

To set the setpoint temperature upper limit:

1) Hold down the SET and “left” buttons simultaneously for 3-5 seconds until you get to the COD menu;

2) Set the value COD=0001

3) Press the SET button 1 time

4) Select item SLH and set the required temperature

To install the lower aisle, you must perform similar steps for the SLL parameter.

Enable auto-tuning of PID parameters. IMPORTANT: before turning on the auto-tuning mode, the thermostat must be connected to the controlled object. Auto-tuning measures the parameters of the object and automatically adjusts the control coefficients.

To enable auto-tuning you need to:

1) Press the SET button for 3-5 seconds

2) Going to the menu, press the SET button, select ARU

3) Set the value ARU=1

4) Press the SET button for 3-5 seconds to save the parameters

5) The AT indicator will start flashing - the thermostat is in auto-tuning mode

6) When auto-tuning is completed, the AT indicator will go out.

The auto-tuning time depends on the inertia of the controlled object and the heater power. The thermostat will perform 3-5 heating cycles, after which auto-tuning will be completed.

The setup is complete, the basic parameters for work have been set.

You can watch the video in more detail:

PID controller REX-C100 - Single-channel PID controller with auto-tuning function, used to accurately set and maintain temperature within specified limits
The REX-C100 thermostat is designed to control the heating process and provides fast and accurate temperature control. The PID controller is widely used in smokehouses, heating, incubators, yogurt makers, reactors and other devices that require maintaining precise temperatures.

REX-C100 PID Controller Features:
supply voltage: 80 .. 260 V
power consumption:< 10 Вт
SSR output
ALARM output: 3A 250V
indicator type: LED
reading accuracy: ± 0.5% (depending on sensor accuracy)
Sensor polling period: 0.5 s
integration time (I): 0 .. 3600 sec
differentiation time (D): 0 .. 3600 sec
number of reprogramming cycles: 100000
retention of settings after power failure: 100 years
body material: plastic
body color: black
sensor cable length: 100 cm
sensor diameter: 4.5 mm
internal cable insulation: fiberglass
operating temperature: 0 .. 50 °C
operating humidity: 30 .. 85%
factory settings: thermocouple type K; temperature range 0 - + 400 °C
dimensions: 48.5 x 48.5 x 111 mm
weight: 170 g

Temperature setting: Press the button SET and buttons UP or DOWN select the desired response temperature. Press the button again SET to complete the settings.

Enabling Alarm mode: SET(5 sec.), activates mode settings Alarm. The PID controller display will show Al1. By pressing a button SVv or SVn adjust the relay response temperature in alarm mode. Long press the button SET save and exit the mode. LED lights up Alm1.

Disabling auto-adjustment: Long press the button SET(5 sec.), activates the additional mode. settings. Press the SET button until the mode appears on the screen Aru. The default value in this mode is 0000 , this means that PID regulation is enabled. Button SVv(Arrow up) set the value to 0001 , this means that PID control is disabled. Long press the button SET save and exit this mode. The LED should turn on AT.

Alarm Settings: Simultaneously press and hold (5 sec.) the buttons SET And SVl(arrow to the left). Let's go to a new menu mode. When installing SL4=11, a SL7=00 the relay is activated when the set temperature is reached. Press the buttons again SET And SVl to save settings and exit the menu.

Supported types of thermops used
type K (TXA) (chromel-alumel, sensitivity 41 µV/°C) 0 .. +999°C

Video review of REX C100

The REX C100 controller is a special device for controlling the heating process, providing accurate, efficient temperature control.

Description of operation and application of the thermal controller

The temperature, pressure, flow and liquid level parameters are displayed and controlled by the REX C100 thermostat.

Its main functions are diagnostics and automatic control.

The device is reliable, easy to use, understandable and effective, like a thermostat.

The controller is often used in any industrial sector, agriculture, various household appliances, equipment, in most machines for separating display modules, for self-assembly of stations, for example, a soldering station, for incubators, muffle furnaces, gas forges.

In other words, it can be used in any device with heating elements, for example, in the process of soldering, distillation, rectification.

The selection of the Rex model is made according to a special encoding. Any controller model has a common code and its own designations.

For example, the REX model is C100-2344-56-78. The numbers indicate the following:

1. Standard size.
2. Type of control (reverse or direct).
3. Entry type.
4. Range code.
5. Heat.
6. Cooling.
7. First alarm.
8. Second alarm.

The installation kit includes the REX C100 thermal controller itself, a K-type thermocouple (XA), a 25A or 40A solid-state relay, and a user manual.

An important condition for choosing a controller model is the presence of a direct output to the SSR solid-state relay without additional power supplies. The connection is made using a thermocouple.

The thermocouple is designed for temperatures up to 400°C. Its length is about 95 cm. The connecting thread is metric with a diameter of 6 mm.

What does PID controller mean?

PID controller REX C100 is a proportional-integral-differentiating temperature meter, i.e. reverse controlled device. PID parameters are used in automatic control systems to generate the main signal, which is determined by 3 terms:

1. Proportional. This term is responsible for the present, reacts to an error occurring at the current moment in time.
2. Integral. The term is used to correct static errors. It is responsible for the past, accumulates previous errors, and removes high-frequency noise.
3. Differential. This term is intended to counteract deviations from the target value that are predicted in the future and reacts to the trend of the error.

Programming PID controllers is used due to the impossibility of maintaining a constant temperature regime by conventional means or manually.

How to connect a thermostat?

In reviews and comments to articles on technical forums, questions are often asked about how to properly connect it and how to configure the controller after purchase. It's not as difficult as it seems.

On the side of the thermostat there is a terminal connection diagram. Each terminal has its own number.

Next to each number there are “+” or “-” signs, to which all wires must be connected, observing the polarity.

The connection must be made as follows:

1. Take a cord with a plug, connect it to terminals numbered 1 and 2 (AC 220V) on the controller. The supply voltage is variable, so the position of the wires can be any.
2. Now we will connect the control contacts to the solid-state relay. These are terminals numbered 3 and 4. Polarity must be observed here. Otherwise, the device may burn out when turned on. So, after connecting to the relay, the green wire indicates “+” and the white wire “-”.
3. For the regulator, respectively, terminal 4 is “+”, and “-” is terminal 5. In other words, the green wire is connected to terminal 4, and the white wire is connected to 5.
4. Now the thermocouple is connected: red contact is terminal 10, blue contact is terminal 9.

If you get it wrong, the REX C100 PID controller will show a negative temperature on the display.

The circuit is assembled, you can start checking and connecting to the network.

Red numbers on the upper display show the current temperature of the thermocouple (PV), green numbers show the setting (SV). In the installation - the temperature that must be maintained. In this case, if the red value is lower than green, the controller sends a signal to the relay, which is indicated by the indicator of the relay itself.

When the temperature parameter on the thermocouple is adjusted to a green value or higher, the control signal should disappear, and when the temperature drops below the set value, the indicator should again signal that the control mode has been established. Moreover, if there is a large difference between the actual temperature and the setting, the control signal will not be intermittent, but constant (the blinking indicator will change to glow).

Device setup

You need to configure the regulator for thermocouple readings as follows:

1. Long press the SET button to go to the corresponding menu.
2. Next, use the same button to select LCE. Its value should be 1000. If necessary, it can be set using the UP, DOWN and LEFT buttons.
3. Press the SET button briefly to save the settings, and press the SET button for a long time to exit the menu.

Now you need to configure the type of thermocouple used for the REX C100 and the temperature scale. To do this you need to do the following:

1. Simultaneously and continuously press the SET and LEFT buttons to go to the corresponding menu.
2. Use the SET button to select the SL 1 parameter. This programmable parameter is responsible for setting the type of thermocouple to be connected:
   • a zero value corresponds to type K;
   • a value of 1 corresponds to type J;
   • with a value of 10 - type R;
   • with a value of 11 - type S;
   • with a value of 100 - type B;
   • with a value of 101 - type E;
   • with a value of 110 - type N;
   • with a value of 111 - type T.
3. Set the value to 0000.
4. Press the SET button to save the value and move to the next menu item SL 2. The last digit in the designation indicates the temperature measurement scale: 0 if the temperature is measured in Celsius, and 1 if the temperature is measured in Fahrenheit.
5. Set to 0 to measure temperature in Celsius.
6. Press SET to save changes.
7. Press the SET and LEFT buttons to exit the menu.

In the REX C100, setting the display of tenths on the indicator is important. You can set not only an integer, even temperature, for example, 80°C, but also a decimal one: 80.1°C; 80.3°C; 80.9°C. It is important to know that the dual controller supports decimals.

Therefore, you need to be extremely careful and careful when setting values ​​and watch how you set the point.

This digital device is not difficult to purchase and acquire; the main thing is to connect and configure it correctly for high-quality work.

Well, it’s time to look at this controller in more detail, as well as adapt and customize it to your needs!

On the face of the face there are two lines of seven-segment LED indicators. The top “PV” line is red; in operating mode it shows the current temperature. In setup mode, menu items.
The bottom line “SV” is green, in operating mode it displays the set temperature that the PID controller strives for. In setup mode, displays the set temperature or set readings for menu items.
The “SET” button, when pressed once, is used to enter the temperature setting mode, when held for more than 2 seconds to go to the user submenu. When held together with the “left” button, to enter the “engineering” menu, where more fine-tuning of the controller is made.
Using the “left” button we move through the digits of the set values, and the “up” and “down” buttons respectively increase or decrease the set values.
On the left there is a row of signed LED indicators, which mainly duplicate the controller output and some used functions, such as PID auto-tuning.

Technical specifications, instructions

And now the REX-C100 itself.
To get started, instructions in Russian. I didn’t find it specifically for the REX-C100, only for the REX series. But as I understand it, they basically only differ in appearance, type and number of outputs. The settings are the same.

Controller specifications:

Dimensions: 48 x 48 x 110 (mm) ± 0.2 mm
Accuracy: ±0.5% of full scale ±1 digit
resolution: 14 bit
control mode: discrete proportional integral-derivative (PID)
polling period: 0.5 s
indicator type: LED
integration time (I): 0 ~ 3600 sec
differentiation time (D): 0 ~ 3600 sec
supply voltage: 85-264 V
power consumption: less than 10W
PID output: relay 3 A 250 V
ALARM output: relay 3 A 250 V
Ambient temperature: 0~50°C, humidity 30~85%, no corrosive gases
factory settings: thermocouple type K; temperature range 0 - + 400 °C
reprogramming cycles: 100000
retention of settings after power failure: 10 years
weight: 170 g

Types of thermocouples used (selected by programming): (K, J, R, S, B, E, N, T, C, Pt, U, L)

type K (TXA) (chromel-alumel, sensitivity 41 µV/°C) 0 - +1370 °C
type J (TZhKn) (iron-constantan) 0 - +120 °C
type R (Pt13Ro-Ro, sensitivity 10 µV/°C) 0 - +1769 °C
type S (TPP, Pt10Ro-Pt, sensitivity 10 µV/°C) 0 - +1769 °C
type B (TPR, Pt30Ro-Pt6Ro, sensitivity 10 µV/°C) 0 - +1820 °C
type E (TCKn, chromel-constantan, sensitivity 68 µV/°C) 0 - +1000 °C
type N (TNN, nichrosil-nisil) 0 - +1300 °C
type T (copper-constantan) -199.9 - +400 °C
type C (ТВР, W5Re-W26Re) 0 - +2320 °C
type Pt 0 - +1390 °C
type U -199.9 - +600 °C
type L (THK, chromel-copel) 0 - +800 °C

We connect the components according to the sticker - you should get something similar:

Now that the connection is complete, let's move on to configuration.

Setting up the REX-C100 thermostat:

The thermostat display shows:

PV – Current temperature value;

SV – Temperature set value

Below me and navigation buttons

Initial setup.

Setpoint Temperature (SV) Setting Mode

From the normal SV/PV display mode, press SET to make the SV display flicker, then press the key< для определения разряда, который будет установлен, затем нажмите клавишу (^) или (v) для установки нужной температуры, далее нажмите клавишу SET снова для возврата в нормальный режим.

Setting parameters

To set alarm parameters, auto-tuning, constants, etc. from normal display mode, press the SET key for three seconds, PV will show the parameter symbol, and SV will show its value, then press the SET key to set the parameter values ​​according to the table:

Setting functions

With the device turned on, find the LOCK parameter in the parameter setting mode and set it to 1000, then press the SET key to confirm, then press both the SET and< одновременно на 3 сек, дисплей PV отобразит «Cod». При «Cod»=»0000», нажимайте клавишу SET для циклической прокрутки следующих параметров на дисплеях PV и SV:

Download instructions in Russian - PID rex-c100

Complete set Thermoregulator, thermocouple, solid. relay + radiator http://ali.pub/2ery0f

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