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Skov DOL 834 Technical Manual

Climate controller
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DOL 834
Climate Controller
Technical Manual
English For other language variants of this document we refer to:
Español Para otras variantes del idioma de este documento, visite:
Français Pour les versions dans d'autres langues de ce document veuillez consulter:
http://docs.skov.com/1256
614091 • 2022-04-01
Software version 7.6

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  • Page 1 DOL 834 Climate Controller Technical Manual English For other language variants of this document we refer to: Español Para otras variantes del idioma de este documento, visite: Français Pour les versions dans d'autres langues de ce document veuillez consulter: http://docs.skov.com/1256 614091 •...
  • 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 834 1 Product description ............................ 7 2 Work routine .............................. 9 3 Installation guide............................ 10 Selecting components...................... 10 Slave relays .......................... 10 Setup of operation form ...................... 10 View week number........................ 11 Select type of Unit of measurements.................. 11 Connecting components......................
  • Page 5 DOL 834 5.2.2.2 Testing auxiliary sensor ...................... 27 Testing network connection .................... 27 6 Service................................ 28 Settings.............................  28 6.1.1 Climate............................ 28 6.1.1.1 Setting of exhaustion (MultiStep) .................... 28 6.1.1.2 Fan settings .......................... 28 6.1.1.3 Stepless to step .........................  29 6.1.1.4 Setting outside temperature limit ....................
  • Page 6 DOL 834 8.1.2 Table relating to DOL 12 temperature sensor control.............. 53 9 Technical data ..............................  54 Dimensioned sketch ........................  55 10 Functionality .............................. 56 Technical Manual...

  • Page 7: Product Description

    1 Product description DOL 834 is a house controller developed for insect farming systems with a focus on the soldier fly and meal- worms. It is thus intended for breeding and growth of larvae and pupae, but can be adapted to most types of in- sect farming systems.
  • Page 8 DOL 834 Fly houses Air inlet for recirculation DOL 834 CE Air inlet DOL 834 insect Air outlet DOL 834 insect Figure 2: Ventilation components in an insect house with fly cages. In fly houses, the focus is on good air quality. Here the flies hatch, after which they mate and lay eggs in fly cages over a period of 10-14 days.

  • Page 9: Work Routine

    DOL 834 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 10: Installation Guide

    DOL 834 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 11: View Week Number

    DOL 834 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 12: The Menu Show Connection

    DOL 834 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 13: Climate

    DOL 834 3.7 Climate 3.7.1 Air inlets The house controller includes different types of air intake: Air inlet in the roof which regulates via a flap, a fan and a recirculation fan. Roof inlet E.g. wall inlets regulated by a winch motor.

  • Page 14: Dynamic Multistep

    DOL 834 3.7.2.3 Dynamic MultiStep See section Setting of Exhaustion (MultiStep) for a general description of MultiStep. Dynamic MultiStep makes it possible to reduce power consumption for the fans in the MultiStep system. This is achieved by the fans' ability to run at two speeds (Low and High) and by letting them run as long as possible at low speed.
  • Page 15 DOL 834 The livestock house's ventilation system 1 stepless unit 2 MultiStep units Ventilation sequence From low to high regulation Method of Operation Flap in stepless unit: The stepless ventilation sequence is achieved by opening and closing the flap. Fan in stepless unit: The stepless fan runs as long as possible at low speed.

  • Page 16: Dynamic Air

    1-16 air outlet 1-3 sensors Technically, one sensor is sufficient for 6 air outlets, but SKOV A/S usually recommends that a Dynamic Air sensor is installed in every other stepless exhaust unit in order to ensure optimum regulation conditions. The cli- mate controller regulates stepless air outlet without sensors based on a calculated output.

  • Page 17: Parking Of Fans

    DOL 834 To ensure that the chimney can provide the necessary air output, the climate controller will increase the flap opening by 2% pr. minute (in relation to the stepless curve), if the fan has been running at maximum speed for more than 1 minute.

  • Page 18: Heating

    DOL 834 3.7.4 Heating Room heating can be regulated as common or individual heating, depending on the number of temperature sen- sors (not for Heat controlled by own sensor Common regulation: A sensor combination with a common setpoint for all room heaters Individual regulation: A sensor combination for each room heater.

  • Page 19: Setting Of Side Cooling

    DOL 834 3.7.7 Setting of side cooling If there are more cooling pumps, they can be set to running either sequentially or in Cooling mode parallel. Side cooling relay ratio Side cooling features up to three relays. The percentage share between cooling relays that are controlled sequentially.

  • Page 20: Calibration

    DOL 834 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 21: Calibration Of Co2 Sensor (Installed As Co2 Sensor)

    DOL 834 System type Minimum value (Pa) Maximum value (Pa) Negative pressure Positive pressure - 50 Bio filter Table 2: Recommended values Select the menu Technical | Calibration | Climate | Pressure sensor Setting the minimum and maximum values must only be done when setting up the sensor.

  • Page 22: Calibration Of Co2 Sensor (Installed As Auxiliary Sensor)

    DOL 834 Note: Calibration should only be carried out only by staff trained by SKOV. 4.2.3 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 23: Testing

    DOL 834 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 24: Testing Climate Functions

    DOL 834 Select the function to be tested and test the components one at a time. A colored bar at the top of the page indicates that a component is set for manual mode. After testing the components, you must set the function back to automatic control, so that the house controller continues to operate as before.

  • Page 25: Stepless Fans

    DOL 834 The testing of fans for Dynamic MultiStep is done in the same way as described for Stepless fans. See section Stepless fans [} 25]. 5.2.1.3 Stepless fans Testing setting and placement of stepless fans The test is to show if the connected stepless fans are set correctly, i.e. if they can run at minimum and maxi- mum speeds, and whether they are placed correctly.

  • Page 26: Testing Relay Functions

    DOL 834 Then select and activate Climate | Outlets| MultiStep | MultiStep 1 Manual mode Activate MultiStep 1 Check that the swivel shutter in the chimney opens completely. When the shutter is approx 15 % open, the MultiStep 1 fan must start at full speed.

  • Page 27: Testing Management Functions

    DOL 834 Activate the emergency air inlet. Check that the emergency air inlet opens completely. 5.2.2 Testing management functions 5.2.2.1 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 28: Service

    DOL 834 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 29: Stepless To Step

    DOL 834 This will ensure that the operating time is distributed evenly between the fans. This will prevent some fans from wearing out while others rust. Rotate timer Setting for the time, after which the house controller switches to the next MultiStep with the same output.

  • Page 30: Setting Of Heating

    Netmask and gateway must only be set when selecting Static IP. The house controller is set to Static IP by default. SKOV A/S recommends that you follow a standard network setup (also see FarmOn- line Explorer Technical manual). Technical Manual...

  • Page 31: Utc Time

    DOL 834 House 2 House 1 6.1.3 UTC time The controller uses two different time settings. A local time which the user can set in the menu Manage- and the so-called UTC (Coordinate Universal Time) which is the in- ment | House data | Adjust date and time ternal time in the controller used, for example, for time-stamping alarms.

  • Page 32: Backup Of Historical Data

    DOL 834 It is possible to save and load a backup of the current settings and page views. This can be done either on the house controller's internal CPU module, SD card or USB stick. If settings are to be copied to other house controllers, use an SD card or a USB stick.

  • Page 33: Imx Based Cpu Module (2 Lan Ports)

    DOL 834 6.3.1.1 IMX based CPU module (2 LAN ports) It is possible to save setting and pages, for example, before making changes. If you want to undo the changes, you can load the save settings and pages and thereby cancel the changes.
  • Page 34 Format SD card Format USB stick See the status of the SD card or USB stick. SD card status USB stick status SKOV A/S recommends that you always save the setup on a USB stick before updating a program. Technical Manual...

  • Page 35: Software Update

    DOL 834 6.4 Software update Important information Loading a new program usually takes up to two minutes. During the update, the power supply must not be interrupted and the USB stick must not be removed before the software update has completely finished, i.e. before the graphic user interface is accessible and usable again.

  • Page 36: Check After Software Update

    DOL 834 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 37: 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 38 DOL 834 Ventilation Temperature Figure 7: 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 8: Control is too fast. The ventilation level changes too much and does not correct the temperature fluctuations.

  • Page 39: P-Band Adjustment

    DOL 834 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 40: Cycle Time

    DOL 834 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 41: Heating

    DOL 834 This function activates the ventilation briefly, thereby sending a stronger air jet through the livestock house. It ensures a thorough replacement of air inside the livestock house. Cycle time Side ventilation Cycle time. The total running time for steps, which modulate (ON + OFF-time) or at Cycle time.

  • Page 42: Floor Heating

    DOL 834 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 43: Humidity

    DOL 834 The proportional band according to which cooling is controlled. P band Reaction timer of the cooling. Integration time Short time: Immediate reaction. Long time: Slow reaction. 6.5.5 Humidity 6.5.5.1 Humidity control At Temperature reduction. Maximum temperature reduction Setting the maximum reduction from temperature setpoint when humidity ventilation is used.

  • Page 44: Humidity Control At Adaptive Ventilation Mode

    DOL 834 6.5.5.1.1 Humidity control at adaptive ventilation mode At humidity control according to the principle Control mode Humidity ventilation Select Adaptive - self learning for the humidity control to automatically adapt to the conditions in the house in question.

  • Page 45: Humidification

    DOL 834 Reaction to too high humidity. Integration time (short) Long time = slow heat supply. Short time = fast heat supply. Reaction to too low humidity. Integration time (long) Long time = slow heat supply. Short time = fast heat supply.

  • Page 46: Adjustment Of Pressure

    DOL 834 Humidification Start Start Stop Fans Humidification with synchronization Humidification with synchronization and stop simultaneously with fans Figure 15: Synchronization of humidification/side cooling and fans Opt to start humidification/side cooling and fans simultaneously in houses where there can be problems getting the additional humidity to distribute evenly, or where humidification/side cooling is run frequently.

  • Page 47: Setting Change Between Roof And Side Ventilation

    DOL 834 For each curve point, the corresponding values are shown. Press the buttons Previous curve point Next curve point access all curve points. Select a value and press for access to change it. Press the button to see the previous and next curve View curve point during the setup.

  • Page 48: Synchronization Of Room Heating And Air Inlets

    DOL 834 6.6.4 Synchronization of room heating and air inlets The function is designed for cold areas, where ventilation is done with and is used with relay Minimum air inlet controlled heat such as gas cannons. Select this function to switch off room heating when the inlets are open.

  • Page 49: Curve For Recirculation Unit

    DOL 834 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 50 DOL 834 The controller deletes all settings and restores the factory settings. It also deletes all Factory reset data that has been saved in connection with the management program (the house must be set up again in the program’s configurator).

  • Page 51: General

    DOL 834 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 Type Software version Serial no.

  • Page 52: Troubleshooting Instructions

    DOL 834 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 53 DOL 834 8.1.2 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 3.55...
  • Page 54 DOL 834 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 Output Max. power consumption Main module Configurable main module. Number 0-10 V: -11 inputs and 2 outputs – or - 9 inputs and 4 outputs –...
  • Page 55 DOL 834 Mechanical Cable knock-out punches 30 x M25 For metrical cable glands Shipment Dimensions (H x W x D) 381 x 568 x 170 Dimensions crated H x W x 421 x 608 x 230 Weight 7800 Shipping weight 9200 9.1 Dimensioned sketch...
  • Page 56 DOL 834 10 Functionality DOL 834 DOL 834 CE Insect climate Central exhaust insect climate System software Ventilation and temperature Inside temperature sensor Outside temperature sensor 1 (DOL 12) Dynamic Air MultiStep Adaptive ventilation PID control (or P-band) Minimum ventilation in m...
  • Page 57 DOL 834 DOL 834 DOL 834 CE Insect climate Central exhaust insect climate History curves on an hourly basis In-between function (soaking/washing/drying/disinfection) Ventilation boost User defined page views Safety Three password levels Comprehensive alarm functions Operation and alarm logs Energy consumption monitoring...
  • Page 60 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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