Skov DOL 434 LPV Technical Manual
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Skov DOL 434 LPV Technical Manual

Climate controller
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DOL 434 LPV
Climate Controller
Technical Manual
613721 • 2022-03-04
Software version 7.6

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Summary of Contents for Skov DOL 434 LPV

  • Page 1 DOL 434 LPV Climate Controller Technical Manual 613721 • 2022-03-04 Software version 7.6...
  • Page 3 The power supply isolator is not included. Note • All rights belong to SKOV A/S. No part of this manual may be reproduced in any manner whatsoever without the expressed written permission of SKOV A/S in each case.

  • Page 4: Table Of Contents

    DOL 434 LPV 1 Product description............................ 7 2 Work Routine .............................. 8 3 Installation guide ............................ 9 Selecting Components ...................... 9 Slave relays .......................... 9 Setup of operation form ...................... 9 View week number........................ 10 Select type of Unit of measurements.................. 10 Connecting Components ...................... 10 3.6.1...
  • Page 5 DOL 434 LPV 5.1.2 Testing Alarm.......................... 27 5.1.3 Testing emergency opening.......................  27 Testing optional components: Manual control .............. 27 5.2.1 Testing Climate Functions ...................... 28 5.2.1.1 Testing temperature simulation.................... 28 5.2.1.2 Testing Air Intake and Air Outlet .................... 28 5.2.1.3 Stepless fans ..........................
  • Page 6 DOL 434 LPV 6.5.5.2 Humidification .......................... 52 6.5.5.3 Synchronizing with fans ...................... 53 6.5.6 Reduced minimum ventilation.................... 53 6.5.7 CO2 minimum ventilation...................... 54 6.5.8 NH3 ventilation...........................  54 Adjustment of pressure...................... 54 6.6.1 Negative pressure curve ...................... 54 6.6.2 Adjusting negative pressure curve.....................  56 6.6.3...

  • Page 7: Product Description

    DOL 434 LPV 1 Product description DOL 434 is a one-house controller developed especially for livestock houses with LPV ventilation. It meets the requirements for climate control especially in temperate climate. Also the DOL 434 includes functions for water, 24-hour clock and additional sensors.

  • Page 8: Work Routine

    DOL 434 LPV 2 Work Routine This technical manual deals with the installation of the controller and and is aimed primarily at the technicians and electricians who will be mounting, installing and testing the controller. According to current national and in Europe also EU regulations, the installation must be carried out by expert personnel.

  • Page 9: Installation Guide

    DOL 434 LPV 3 Installation guide 3.1 Selecting Components There are two ways to carry out installation of the controller. At the initial installation: Use Installation wizard which will guide you through all the options of the functions. At adaptation of the existing installation: Use the menu...

  • Page 10: View Week Number

    DOL 434 LPV 3.4 View week number View of week number at the top of all pages. View week number 3.5 Select type of Unit of measurements The controller can display the units as both metric and US units. Unit of measurements 3.6 Connecting Components...

  • Page 11: The Menu Show Connection

    DOL 434 LPV 3.6.2 The menu Show Connection When you have selected all the components in the installation menu, the house computer will show you where to connect the individual components. See the menu for where exactly to connect the individual components.

  • Page 12: Shared Equipment

    DOL 434 LPV 3.6.4 Shared equipment Controllers in the same network (see Network settings [} 37]) can share equipment such as outside tempera- ture sensor and outside humidity sensor. The controller where the equipment is physically connected is called the ‘Master’. The other controllers are called ‘Clients’.

  • Page 13: Air Outlet

    DOL 434 LPV 3.7.2 Air outlet 3.7.2.1 Standard settings for stepless fan The house controller has a range of standard settings for a range of different fan types. When you choose to load a standard setting, it is not necessary to carry out further settings for fan.
  • Page 14 DOL 434 LPV 0-10 volt output The 0-10 V output makes it possible to run at low speeds on the fan, and from here to run the fan steplessly up to full speed. Low speed and Full speed When a fan connect to a 0-10 V output has been selected, a voltage value must be set which corresponds to the fan running at low and full speed.
  • Page 15 DOL 434 LPV Stepless unit MultiStep 1 MultiStep 2 Table 1: Examples of outputs Technical Manual...

  • Page 16: Setup Examples

    DOL 434 LPV 3.7.2.3.1 Setup examples Number of chim- High 0 - 28,800 m3/h neys low speed. 7200 15500 Stepless 28,800 m3/h - 62,000 m3/h 7200 15500 high speed. 14400 31000 Fan output is controlled at high speeds by a sig-...

  • Page 17: Setup Of Minimum Ventilation

    DOL 434 LPV The function is available in the LPV and CT variants and for all type of ON/OFF MultiStep. We recommend that you use parking of fans which are not in use as this will enable the ventilation regulation to automatically adapt to the altered ventilation capacity.

  • Page 18: Active Functions In The Event Of Control Failure

    DOL 434 LPV 3.7.6 Active Functions in the Event of Control Failure When installing MultiStep air outlet and side cooling, you must decide how these functions is to react in an emergency situation. MultiStep air outlet Activated: When the control fails, the air outlet is active.

  • Page 19: Control Methods For Stir Fan

    DOL 434 LPV Depending on the type, location and connection method, however, a stir fan can be used for many different pur- poses. A stir fan can be connected with relay, 0-10 V, 0-10 with reverse and with slave relay.

  • Page 20: Light Sensor

    DOL 434 LPV Setting the number of light sensors. Number of light sensors Light control settings Light sensor settings Selecting light sensor type. Main light This is used to name a light source according to function, so that it can be recog- nized in the menus and alarms.

  • Page 21: 24-Hour Clock

    DOL 434 LPV By selecting a relay for a water meter, it is possible to shut off the water in the Water meter settings event of excessive water consumption. The relay cannot be activated in the event of power failure. In this case the water will be switched on.

  • Page 22: Calibration

    DOL 434 LPV 4 Calibration 4.1 Calibration of Air Intake and Air Outlet The controller must be adapted to the winch motor after installation. Winch motors with feedback must be calibrated by a technician, while winch motors without feedback are cali- brated automatically once the technician has set up a time for Air inlet time.

  • Page 23: Calibration Of Pressure Sensor

    DOL 434 LPV Wind direction maximum voltage Wind speed minimum voltage Wind speed maximum voltage Enter a Minimum value as well as a Maximum value to indicate the Wind speed minimum speed area within which the weather station can measure.

  • Page 24: Calibration Of Co2 Sensor (Installed As Co2 Sensor)

    Maximum value 10000 ppm Note: Calibration should only be carried out only by staff trained by SKOV. 4.2.4 Calibration of CO2 sensor (installed as auxiliary sensor) DOL 19 and DOL 119 CO2 sensor should be checked between each batch when the house is in...

  • Page 25: Calibration Of Nh3 Sensor

    0 ppm Maximum value 10000 ppm Note: Calibration should only be carried out only by staff trained by SKOV. 4.2.5 Calibration of NH3 Sensor If DOL 53 does not measure correctly, normal maintenance is carried out (replacement of filter). The sensor must be changed if this does not help.

  • Page 26: Calibrating Light Sensor

    DOL 434 LPV Relay-controlled light Enter the measured lux value for ON. Set each calibration point individually. ON and OFF for relay-controlled light. Points 1-6 for light dimmer (0-10 V controlled). Light dimmer Enter a lux value which corresponds to the measured light level at the given voltage.

  • Page 27: Testing

    DOL 434 LPV 5 Testing After installation of the system a thorough test must be carried out, to ensure that the system works as intended. 5.1 Testing basis components 5.1.1 Testing temperature and air humidity sensors Read the current inside temperature and humidity 1.

  • Page 28: Testing Climate Functions

    DOL 434 LPV The component currently set for manual control are listed in the menu Technical | Manual/Auto | Manual mode The manual control can also be deactivated here. Select the function to be tested and test the components one at a time.

  • Page 29: Stepless Fans

    DOL 434 LPV to 100 %. Side inlet 1 requirement Check that the correct air inlets open completely. to 0 %. Side inlet 1 requirement Check that the correct air inlets close completely. Set the air inlet to the required setting.

  • Page 30: Multistep

    DOL 434 LPV Set the to 0 %. Air outlet fan speed Check that the fan stops completely. If the fans are connected as 3-wire, they should not stop com- pletely, but instead run at minimum speed. Repeat the test for each of the stepless fans.

  • Page 31: Emergency Inlet

    DOL 434 LPV Heating • Check that the unit which you activate in the house controller is the unit intended for the house. Relay heating • Check the direction of rotation of the fan in the heating units. • Check that the heating system can start and stop.

  • Page 32: Testing Water Meter

    DOL 434 LPV Test the relay-controlled light by connecting and disconnecting the relay. Activate and check that the light is on. Deactivate and check that the light is off. Test the light dimmer by increasing and dimming the light inten- sity.

  • Page 33: Testing Management Functions

    DOL 434 LPV 5.2.3 Testing management functions 5.2.3.1 Testing of current sensor This section is only relevant to livestock houses where supply current sensors are installed. The testing must show that the current sensor is connected to the requested fan.

  • Page 34: Service

    DOL 434 LPV 6 Service 6.1 Settings 6.1.1 Climate 6.1.1.1 Setting of exhaustion (MultiStep) MultiStep is a method for controlling one or more exhaust units in steps, so that the exhaust output becomes stepless. The controller controls one or two exhaust units stepless from zero to 100 %, while the rest of the exhaust units are switched on in steps as required.

  • Page 35: Stepless To Step

    DOL 434 LPV Setting makes it possible to stagger the times when the fans start Power up delay across the different houses. E.g. House 1-3: 0 sec. House 4-6: 60 sec. This function makes the controller switch between activating MultiStep with the Rotate same output.

  • Page 36: Setting Of Heating

    DOL 434 LPV °C Limit 21 °C 18 °C Figure 5: Curve for outside temperature limit The Outside temperature limit can be regulated via a curve over two day numbers so that ventilation can be lim- ited when there are small animals in the house. The limit is factory set to 18 °C for both day numbers.

  • Page 37: Network Settings

    DOL 434 LPV 6.1.2 Network settings Controllers may be installed in a network. This way they may share equipment with each other. Sharing requires: • A cabled LAN between the controller providing the shared equipment and the controller also using it.

  • Page 38: Utc Time

    DOL 434 LPV SKOV A/S recommends that you follow a standard network setup (also see FarmOn- line Explorer Technical manual). Note that if the connection between the ‘Master’ and the ‘Client’ controllers is interrupted, the ‘Client’ controller loses information from the shared equipment.

  • Page 39: Backup

    DOL 434 LPV Setting the time from when the controller was operated and until the backlight Backlight timeout dimmes. 6.3 Backup Select the menu Technical | Service | Backup It is possible to save and load a backup of the current settings and page views.

  • Page 40: Sd Card And Usb Stick

    DOL 434 LPV 6.3.2 SD card and USB stick Using an SD card or a USB stick it is possible to backup the controller setup and data including settings, pages, historical data, house name, IP address, calibration values, etc. In order to prevent data loss when replacing a defective house controller or individual hardware parts, it is possi- ble to restore all types of data from the SD card.

  • Page 41: Software Update

    SD card status See the status of the SD card or USB stick. USB stick status SKOV A/S recommends that you always save the setup on a USB stick before updating a program. 6.4 Software update Important information Loading a new program usually takes up to two minutes.

  • Page 42: Preparing For A Software Update

    DOL 434 LPV • Evaluate which climate climate functions are to be run in manual mode during the update, and activate the manual switch for each of them to ensure that these conditions are maintained during the software update. • Remove the power supply (230 V and battery) from the emergency opening, if the air inlet and air outlet should remain closed during updating.

  • Page 43: Check After Software Update

    DOL 434 LPV 3. Insert the USB stick containing the software update in the USB port (C) on the CPU module. In the menu Technical | Service | Install software Select the required software version. The installation process begins. Settings are automatically saved before the update starts and are loaded after the restart.

  • Page 44: Control Parameters

    6.5.1.1 Adaptive control From the factory the controller is set to adaptive control. SKOV recommend the use of adaptive control. Adaptive control is used for, for example, ventilation, tunnel cooling, heating and humidity control (as an alterna- tive to PID control).
  • Page 45 DOL 434 LPV Ventilation Temperature Figure 8: Control is ok. The ventilation adapts to the changes in the inside temperature and returns it to the required level. Temperature Temperature setpoint Ventilation Figure 9: Control is too fast. The ventilation level changes too much and does not correct the temperature fluctuations.

  • Page 46: P-Band Adjustment

    DOL 434 LPV The control follows the settings in a stable manner The control reacts too fast and changes often. The setting can be changed to Slow. The control reacts too slowly and the deviation from the setting becomes too big.
  • Page 47 DOL 434 LPV Short time: Fast regulation. Long time: Calm/slow regulation. PID control Gain at 0-100 % flap opening. Percentage flap per degree deviation from Tempera- Gain@100 ture setpoint. Gain@1 High gain: Large reaction. Low gain: Small reaction. Accept band Maximum acceptable error before the controller calculates a new ventilation re- quirement.

  • Page 48: Ventilation In Relation To The Outdoor Temperature

    DOL 434 LPV 6.5.2.1 Ventilation in relation to the outdoor temperature The winter factor is used to influence the ventilation with changes in the outside Winter factor temperature, before the temperature in the house is affected. Factor 1.0 gives no effect. Factor 0.5 results in half ventilation with a drop in the out- side temperature of 12 °C.

  • Page 49: Comfort

    DOL 434 LPV Exhaustion % Air inlet % Sec. Figure 15: When the ventilation requirement exceeds the capability of the cycle time function, the house controller will again regulate the ventilation in relation to the inside temperature and air humidity. 6.5.2.5 Comfort Comfort ventilation At batch production.

  • Page 50: Cooling

    DOL 434 LPV At heating requirement: The heating relay is ON for minimum this time. Minimum ON time When the heating relay is released, it is OFF for minimum this time. Minimum OFF time At PID regulation P band Working range for 0-10 V heating.

  • Page 51: Humidity Control At Adaptive Ventilation Mode

    DOL 434 LPV : Standard humidity control according to one of the following Use humidity control principles: Humidity ventilation, Temperature reduction or Humidity heat. The re- quired principle is selected in the menu Climate | Humidity | Humidity con- trol mode...

  • Page 52: Humidity Control At Adaptive Heat Mode

    DOL 434 LPV Reaction to too low humidity. Integration time (long) Longer time = slow ventilation build-up. Shorter time = faster ventilation build-up. Differential time for humidity ventilation. Differential factor Short time = modest reaction. Long time = strong reaction.

  • Page 53: Synchronizing With Fans

    DOL 434 LPV Long time: Slow reaction. 6.5.5.3 Synchronizing with fans The function starts humidification/side cooling and fans simultaneously in houses where it may be difficult to dis- tribute the additional humidity evenly, or where humidification/side cooling is run frequently. Here you can choose to start the fans simultaneously with the humidification/side cooling.

  • Page 54: Co2 Minimum Ventilation

    DOL 434 LPV Setting the outside temperature where the minimum ventilation is not further Max. reduction at outside temperature reduced. Outside temperature Minimum ventilation Minimum ventilation Outside temperature range where the minimum ventilation is reduced Outside temperature Figure 17: Reduction of minimum ventilation at low outside temperature The reduction increases linearly (from 0 % at 5 °C, 20 % at -2.5 °C to 40 % at -10 °C).
  • Page 55 DOL 434 LPV Adjust the pressure by making a curve course for the required pressure. Negative pressure (Pa) Nominal output 53,200 m3/h Outlet 25 % 13,300 m3/h Air inlet (flap position) % Figure 18: Adjustment of negative pressure 1: Air inlet (flap position) This negative pressure curve is ideal for a given system, depending on the type of winch motor used.

  • Page 56: Adjusting Negative Pressure Curve

    DOL 434 LPV 6.6.2 Adjusting negative pressure curve The menu Climate | Ventilation | Status shows what the current ventilation mode is. Pressure adjustment is made in the menu Technical | Service| Negative pressure First select the ventilation mode to be adjusted, for example, .

  • Page 57: Using Two Curves For Air Inlets (Side And Tunnel)

    DOL 434 LPV The combined curve values can also be seen in the menu | Technical | Service | Negative pressure | Pressure curve . However, we recommend that you use the other menu where it is also possible to see how the adjustments affect air inlets and outlets.

  • Page 58: Setting Of Minimum Air Inlet

    DOL 434 LPV 6.6.5 Setting of minimum air inlet The function makes it possible to set a required air inlet opening when the controller is run- Minimum air inlet ning minimum ventilation in roof and side mode. When the Cycle Time function is used, it is the position of...

  • Page 59: System

    DOL 434 LPV The air outlet’s flap position and fan voltage % Flap position Fan voltage Output % Fan voltage Vent [%] Output for the stepless fan Output [%] Flap position for air outlet Flap [%] With Dynamic MultiStep, two set-ups must be carried out for the stepless units for low regulation and high regu- lation respectively.

  • Page 60: General

    DOL 434 LPV 7 General 7.1 About SOFTWARE Software version System ID System name Build time CPU MODULE License request code MAC address SDK version Boot loader version MAIN MODULE Type Software version Serial no. Calibrated ADDITIONAL MODULES Modules 1-13...

  • Page 61: Troubleshooting Instructions

    DOL 434 LPV 8 Troubleshooting instructions • Is there 230 V current on terminals A1+ A2 (if not, check installation fuses and fault current relay) • Is the change-over switch of the fan speed controller MAN/AUT set on AUT? • Is the controller set to automatic control? •...

  • Page 62: Temperature Sensor Control Table

    DOL 434 LPV Ping test accepted. Ping test not accepted. 8.2 Temperature Sensor Control Table 8.2.1 Table relating to DOL 114 Temperature Sensor control °C °F °C °F °C °F -40.0 0.00 42.8 4.60 82.4 6.80 -31.0 0.50 44.6 4.70 84.2...
  • Page 63 DOL 434 LPV 8.2.2 Table relating to DOL 12 Temperature Sensor control °C kΩ* °C kΩ* °C kΩ* 82.50 8.08 20.71 5.29 10.72 3.73 76.84 7.96 20.09 5.22 10.45 3.67 70.60 7.83 19.48 5.15 10.19 3.61 63.97 7.68 18.90 5.07 9.94...

  • Page 64: Technical Data

    DOL 434 LPV 9 Technical data Electrical V AC Rated voltage 115*, 200* and 230/240 (*not speed controller) V AC Operating voltage 103.5-264 Frequency 50/60 Effect Max. current consumption Main module Configurable main module. Number 0-10 V: -11 inputs and 2 outputs – or - 9 inputs and 4 outputs –...

  • Page 65: Dimensioned Sketch

    DOL 434 LPV Network interface 2 x 10/100 BASE+TX RJ 45 2 x USB 2.0 A type Accessories Speed control (output) Motor load max. 6.8 A 230-240 V AC/min. 150 W. Environment °C (°F) -10 to +45 (+14 to 113) Operating temperature °C (°F) -25 to +60 (-13 to +140)

  • Page 66: Functionality

    DOL 434 LPV 10 Functionality DOL 434 LPV System software Ventilation mode Ventilation and temperature Outside temperature sensor Inside temperature sensor Air inlet Side inlet Roof inlet Air outlets Side outlet - stepless group Number of flaps in each stepless group...
  • Page 67 DOL 434 LPV DOL 434 LPV System software Intelligent humidity control by outdoor condi- tions Cooling Side cooling Cooling before maximum ventilation Nozzle cleaning (side cooling) Production Water meter Light Light dimmer Light sensor Boost function Light dimmer controlled by light sensor...
  • Page 68 SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev Tel. +45 72 17 55 55 • www.skov.com • E-mail: skov@skov.dk...

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