Installation, power connection.
Connection and adjustment of sensors.
Connecting and setting actuator actuators.
Connecting to a computer and setting up a connection.
Setting technological parameters.
Commissioning during operation.
The climate controller MR-2560_Z-58 (hereinafter referred to as the device) consists of two elements: from the device board mounted in the rear part of the housing and from the front panel of the device in which the LCD screen and the keypad are mounted.
The electrical rear and front parts of the device are connected with each other by two cables of wires: 4 wires for the screen and 5 wires for the keyboard. Loops on both sides have standard BLS connectors with a pitch of 2.54 mm. The length of loops for monoblock mounting of the device is 20 cm. For separate installation of the rear part and front panel it is necessary to make or order loops of the required length. Separate installation is used when the front panel is mounted on the front door (panel) of the mounting (power) box. Mechanically, the rear and front parts are connected by 4 screws.
On the perimeter of the device board are the terminals for connecting cables coming from all external devices. In the back of the case there are marked holes for the conductors of cables of external devices.
Power supply of all sensors and actuators is carried out directly from the device by the same cable that the information signals are transmitted.
The device from the sensors connected to it collects information about the current state of the climate in the mushroom growing room, climatic parameters, weather conditions (temperature), compares the obtained data with the climate parameters of the specified technologist, calculates the values of the control parameters and gives control signals to the actuators actuators.
The device must be powered from a certified power supply unit with an output voltage of 24 V, a current of 2.5 A with isolation from high-voltage networks.
All connections to the device should be made only when the power of the device is switched off. The first connecting wire in the cable must be GND to safely remove the possible static charge from the connected device.
Installation, power connection.
The device is usually mounted monoblock on the panel inside a steel or plastic mounting (power) box. The drawer dimensions and the location of the device inside should provide access to the inputs to the device for easy connection and cable laying.Fastening the device to the mounting panel is done by four screws or screws through the holes under the front panel of the device. For this, after preliminary marking of the installation site of the device, it is necessary to drill and cut the thread in 4 holes for fastening.
The method of external mounting of the device is solved in the place of installation.
After the device is fixed, all connections are made to the connected devices in the same box: actuator actuator relays, frequency converter, protective devices.
After installing the installation box to the place of operation, the connections to the device are inspected, the connections are correct. The device is turned on to check the correctness of the connections.
When the power of the device is turned off, the cables of temperature sensors, relative air humidity, CO2 concentration in air are made according to the figures or the sensor connection diagrams.
Figure explaining the connection of external devices to the device
Connection and adjustment of sensors.
Temperature sensors.
The climate controller MR-2560_Z-58 has 4 inputs named OW1, OW2, OW3, OW4 for connecting temperature sensor data lines.
Temperature sensors DS18B20 used for temperature measurement by the device can be connected with their signal lines (Sens) all to one of any of the 4 inputs of OW1 or OW2 or OW3 or OW4 in parallel or by connecting sections to different inputs of the device (OW1, OW2, OW3, OW4) In parallel in their sections. Connection of temperature sensors sectionally in some cases allows to reduce the length of cable branches from the main line. The GND terminals of the sensors are connected to the GND terminals of the device, the terminals VCC (+) of the temperature sensors are connected to the terminals + 5V of the device.
Be careful when connecting, because when power is applied to improperly connected temperature sensors they fail.
To connect the temperature sensors it is recommended to use the cable J-Y (ST) Y Lg 2x2x0,8. Two conductors of this cable are used for GND and VCC, and one or two conductors for connecting data lines of temperature sensors.
The total length of the wire of one data line should not exceed 50 meters. If you need to connect sensors at long distances from the device (up to 500 meters), connect the temperature, humidity and CO2 sensors through the switch.
Humidity Sensors Applied with the device in its construction contain two temperature sensors called "dry" and "wet", which are connected in the same way as all other temperature sensors.
In a simple case, the humidity sensor is made up of two temperature sensors, one of which is wrapped around a sensitive element with a cloth, the hanging edge of which, in the form of a wick, is lowered into a container of distilled water.
Relative air humidity is determined by the difference between the temperatures of the "dry" and "wet" sensors and the temperature of the dry sensor. This method of measuring the relative humidity of the air is called psychrometric and allows to measure relative humidity of air with high accuracy, reliability and reliability at high values of 80 ... 100%.
CO2 Concentration Sensor Connect to the terminal group of the device labeled with the inscription |CO2 |.
For connection it is recommended to use the cable J-Y (ST) Y Lg 2x2x0.8 two conductors of which (always two!) Are connected to the GND terminals of the device, one to the terminal + 24V, one to the CO2-A terminal.
Binding of temperature sensors to the installation site.
After the termination of connection to the device of all gauges to check up correctness of connections. Switch on the appliance. Go to window number 15, select the parameter Addr. Sensors, change the value to YES and press the "up" button, window No. 15.1 should open. If in the Sensor index = line the numeric value of the index of the sensor having the highest temperature at the instant of measurement is displayed stably without flashing, and in the row has Tmax = the actual temperature value from this sensor is displayed, then proceed to link the temperature sensors to the locations of their installation. To do this, heat the temperature sensor with your hand or immerse it in hot water so that its temperature is the highest among all the connected sensors (at this time the temperature of the most heated sensor will increase), use the "right" - "left" Press the "down" button for a period of no more than 0.5 seconds, the screen will momentarily display the message activated - the sensor is tied to the selected place. Repeat the procedure for heating and binding to the installation site with each temperature sensor. Pressing the "down" button for more than 3 seconds clears the selected binding location. Exit the window of sensor bindings - press the "up" button. The device displays all installed and attached temperature and humidity sensors on its screen.
Correction of humidity sensor readings.
Since the relative humidity sensor consists of two temperature thermometers with absolute measurement error, in order to increase the accuracy of determining the humidity in the operating range, it is necessary to: immerse the ends of both temperature sensors wrapped with tape with the moisture sensor into the central region of the container (bucket) with constantly stirred water at Temperature 18 degrees C. On the device go to window number 12, select parameter dWL and adjust it so that the displayed relative humidity Gt; 100.0%. & Lt; / RTI & gt; At a temperature of 18 degrees C to adjust the humidity by 1%, you must change the parameter dWL to 0.1. If the displayed humidity is less than 100%, the dWL parameter is increased, if the displayed humidity is greater than 100%, then the dWL parameter is reduced. Exit the editing by pressing the "up" button. If necessary, do the correction again until the accuracy of the reading is at least 0.2%. Important points: the sensors should not touch the capacitance when adjusting, but be in its center; The sensors are wound together to have the same temperature; Water temperature and ambient temperature 18 degrees C; Water constantly mix!
Correction of the CO2 sensor reading.
It is recommended to test the CO2 sensor at least once a year. To do this, compare the readings of the sensor with the readings of the already portable CO2 sensor. First, believe in fresh air, then at a concentration of 1000 ... 1500 ppm. The duration of stabilization of the readings from the sensors during measurements is not less than 20 minutes in a stable measured medium. The readings of the verified and verified sensors must coincide.
If it is necessary to correct the CO2 sensor readings, the values of the Ksco parameters - the CO2 sensor's slope factor and Dr_0 - the CO2 sensor drift in window No. 13 are changed. First, the parameter Ksco = (Ce2-Ce1) / (Cm2-Cm1) is corrected. After adjusting the Ksco parameter, re-calibrate in fresh air and adjust Dr_0 = Ce3 - Cm3 with the new measured values of Ce3 and Cm3 concentrations.
Ce2 - readings of the CO2 sensor on a scale at 1000 ... 1500 ppm;
Ce1 - readings of the CO2 sensor in the open air;
Cm2 - the value of the verified CO2 sensor at 1000 ... 1500 ppm;
Cm1 - readings of the CO2 sensor being checked for fresh air;
Ce3 - readings of the outdoor CO2 sensor after correction of Ksco;
Cm3 - readings of the verified CO2 sensor in fresh air after Ksco adjustment;
After adjusting the parameter Dr_0, check the readings of the verified sensor with the calibrated CO2 sensor verbatim. If necessary, do the correction again until the accuracy of the reading is at least 2%.
Connecting and setting actuator actuators.
The device operates valves and air valves of the air conditioner with a DC 24 V supply voltage controlled by a voltage of 2 ... 10 V, giving a feedback signal about the actual position of the drive in the range 2 ... 10 V (for example Belimo LM24A-SR drives), And a frequency inverter controlled by a voltage of 0 ... 10 V.Connect the drives according to the markings of the terminal groups on the Atm, Rec, Hot, Col, Fre, Wla. To connect the drives it is recommended to use the J-Y (ST) Y Lg 2x2x0.8 cable. Check the correctness of the connections, make insulation and stowage of the drive cables. Turn on the power of the device. Switch the device to manual control, to do this, select Stop in the window №2.
Set the parameters Atm, Rec, Hot, Col, Fre, Wla of window # 4 to 0 (zero) and the parameters F, H, C, W, A in - (minus). Check the rotation of the actuators and their positions: all valves and air valves must be closed, all relays deactivated, the air conditioner fan does not rotate. If necessary, switch the direction of rotation of the drive directly to the drive.
Set alternately the parameters of the Atm, Rec, Hot, Col, Wla drives of window No. 4 to 100, and the parameter Fre to 50 (rotation speed) and set the parameters F, H, C, W, A to + (plus). Check the rotation of the drives and the positions they occupy: the valves and air valves must open completely, all relays turn on, the air conditioner fan rotate at full power.
Connecting to a computer and setting up a connection.
For remote climate control, connect the device to a personal computer with MushRoom installed.For connection use a twisted pair cable F / UTP CAT-5 (e). On the device side, one twisted pair of wires of the communication cable is connected to the clamps A, B of the group of terminals RS485-1. The other side of the cable is connected to the clips A, B respectively of the converter of RS232 / RS485 interfaces or USB / RS485 connected to a personal computer or laptop. The device turns on. The computer turns on, the MushRoom program is launched. In the main window of the program, check the display of all climate parameters and climatic parameters. The data from the device is updated every 6 seconds.
Check the control of the instrument from the program on the computer.
When you connect your computer to the Internet and installed the remote computer management program (for example TeamViewer), check the device control from the smartphone.
Before commissioning, a test run of the device with a full set of equipment connected to it is made. Various technological parameters are set and the execution of tasks by actuators is checked.
Check the serviceability and operation of equipment controlled by the device: pumps, cranes, drives.
Setting technological parameters.
Installation of technological parameters is carried out in window №2.Set the task to maintain the temperature.
Enter the parameter T kom - maintain the temperature of the compost (substrate) or in T woz (T air) - maintain the air temperature and set the temperature.
Set the task to maintain the relative humidity in the mushroom growing chamber.
Enter the parameter Wlaga (Humid) to set the required humidity;
Allow dehumidification: set the Suh parameter to + (plus);
Enable humidification: set the Wlag (Humi) parameter to + (plus). If there is no humidifier, then put - (minus).
Set a task to maintain the concentration of CO2 in the air of the mushroom growing chamber.
Enter the CO2 parameter and set the CO2 concentration.
Set the type of maintaining the CO2 concentration in the Tip parameter:
= (fix) - Accurate maintenance of concentration of СО2;
> (max) - keep the concentration of CO2 maximum;
< (min) - it is permitted to use excessive ventilation for cooling purposes;
- ... The CO2 concentration is not adjustable (it is set when there is no CO2 sensor).
Set the maximum ventilation value when adjusting the CO2 concentration - parameter G_max (usually 100%).
Set the speed of the main fan of the air conditioner.
Enter the parameter Freg to set the minimum frequency - the parameter F_min, the maximum frequency - the parameter F_max,
Set the resolution to change the frequency to increase the cooling - the Cold_F parameter, set the resolution to change the frequency to adjust the vertical air temperature gradient in the mushroom growth chamber - the Temp_F parameter.
To keep the frequency fixed, then set the parameters F_min and F_max equal.
The alarm parameters are in window No. 9.
If necessary, take any parameter of climate or climate equipment under control include the corresponding parameter of window No. 9 and set the value of the permissible deviation of the parameter or its permissible absolute value.
Commissioning during operation.
When changing the autumn-winter or spring-summer season in window No. 5, turn on the heater and turn off the cooler and vice versa, and in window No. 7 turn on / off the heat exchanger protection from defrosting.If necessary, correct:
- Parameters in window No. 10: max_dQ - maximum change in thermal necessity per cycle, max_dS - maximum change in drainage per cycle, max_dG - maximum change in degassing per cycle
- Parameters in window No. 11: K_h - heater efficiency factor, K_c - efficiency factor of the cooler.
Their correction is made when necessary for the first operational activation of the device with the climate system on which it is installed. In the future, with unchanged characteristics of the equipment in the correction do not need. Ie these parameters are determined experimentally under the established climatic equipment. In most cases, the factory settings of the device do not need to be adjusted.
The device does not need maintenance during its entire operation.
Before each new loading of the growth chamber, it is necessary to check the display of the readings from all sensors, the operation of the drives, the integrity of the cable insulation, the absence of kinks and twisting of the compost (substrate) sensor cables, they sometimes damage by negligence when unloading the camera load.