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Ridder Aqua CX300 User Manual

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SV -
02/03/2020
96010102
User Manual
Aqua CX300

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Summary of Contents for Ridder Aqua CX300

  • Page 1 SV - 02/03/2020 96010102 User Manual Aqua CX300...
  • Page 2 Ridder Growing Solutions B.V. is naturally very interested in your comments and additions. This product is subject to the General Conditions of Ridder Growing Solutions B.V. This document may not be copied or made public by means of printing, photocopying, digital copying or any other process, without the prior written permission of Ridder Growing Solutions B.V.

  • Page 3: Table Of Contents

    Contents 1 Introduction 1.1 Available Aqua CX300 models 1.1.1 Certificates and declarations 1.1.2 Type plates 1.2 How the Aqua CX300 works 1.3 Valve groups and valves 1.4 Irrigation programs 1.5 Start options 1.6 EC and pH control 1.7 Irrigation 1.8 General 1.9 Type of irrigation...
  • Page 4 5.4 pH 5.5 Contact sensors 5.6 General 5.7 Outside conditions 5.8 Start 5.9 Re-start 5.10 Sensor 5.11 Error 5.12 I/O modules...

  • Page 5: Introduction

    Ridder process computers). Available Aqua CX300 models The basic model of the Aqua CX300 can operate up to 32 valves and comes with three user-definable irrigation programs. Valves can be divided into three valve groups. Each program includes the following standard control options: Time start;...

  • Page 6: Certificates And Declarations

    CE Declaration of Conformity CP-PRO Aqua CX300 DC 1.1.2 Type plates Each modular component in the Aqua CX300 system contains a type plate. Each type plate shows the following minimum of information: Figure 1-1 Example of Aqua CX300 type plate No.

  • Page 7: How The Aqua Cx300 Works

    How the Aqua CX300 works The Aqua CX300 is designed to control irrigation and fertilizer application (collectively called 'fertigation'). These processes are controlled based on a number of factors, such the desired EC and pH levels in the irrigation water, and the amount of solar radiation received by the plants.

  • Page 8: Start Options

    EC and pH control The Aqua CX300 can control the EC and pH levels of the irrigation water if equipped with the EC and pH modules. These modules enable you to set the desired EC and pH values (or 'EC and pH setpoints') for each valve group. Fertilizer application can be automatically adjusted to raise or lower the EC value of the irrigation water based on the solar radiation level.

  • Page 9: General

    Aqua CX300 Pre-rinsing or post-rinsing of the crop can be programmed either by the duration that rinsing should last, or by a volume in litres. A time+volume can also be set for both irrigation and rinsing. This means that irrigation or rinsing will stop once the pre-set volume is reached, or sooner if the pre- set time has elapsed.

  • Page 10: Operation

    Aqua CX300 Operation Switching on the controller The main switch (Power ON/OFF) is located on the left side of the computer housing. This switch enables you to turn the mains supply to the controller on and off. When you switch the controller on for the first time, all the settings are configured to the factory defaults.
  • Page 11 Aqua CX300 Character Meaning Start To manually activate a valve group: Press Start (G). Use the arrow keys to select the desired valve group. Press Enter (E). The main data of the irrigation program assigned to the valve group appear on the display.

  • Page 12: Displaying Data And Entering Settings

    Go directly to the main menu. Displaying data and entering settings The Aqua CX300 is equipped with up to 10 irrigation programs, each of which can be configured independently. An irrigation program enables you to set the various control parameters for irrigation. Each valve group is assigned to an irrigation program.

  • Page 13: Alarms

    Aqua CX300 When you have entered the correct values, press E. The new value is stored in the memory. 2.3.3 Alarms If a detectable error situation occurs, an alarm message will be triggered.  A number of alarms will result in the irrigation group being paused.  To acknowledge an alarm, press the <Delete>...

  • Page 14: Settings

    Aqua CX300 Settings Arrangement of settings and readouts Menu Main menu 3.2 Settings 3.3 Programs 3.3.1 P01 - P10 3.3.1.1 - 3.3.1.13 Irrigation EC control EC pre-blending pH control Pre-mix unit Time start Alternative time start Cyclic start Contact start...
  • Page 15 Aqua CX300 Menu Water configuration Communication Synopta settings Registration Modules Measurements Filter flushing Flow rate measurement Assign contact start EC calibration pH calibration Backup settings Assign valves to group 3.3 Setting valves 3.3.3 Assign group to program 3.4 (De)activate valves Display summaries Print summaries 4.2...

  • Page 16: Main Menu Button

    Aqua CX300 Main menu button Settings Assign group to program (De)activate valves Display summaries Control level Access code Settings See: "Settings" below. Assign group to program See: "Assign group to program" on page 62. (De)activate valves See: "(De)activate valves" on page 62.
  • Page 17 Use the arrow keys to move the cursor, and press the 'OK' key to confirm your changes. Assigning valves to two valve groups (Aqua CX300 v.6.0 or higher) As from version 6.0, it is possible to assign valves to two valve groups. You can also set the sequence in which valves open.
  • Page 18 Aqua CX300 The figure below of the Valve settings screen shows that valve 1 has been assigned to valve groups 3 and 4. Sequence number 10 has been set for the first valve group (i.e. valve group 3) and sequence number 20 has been set for the second valve group (i.e.
  • Page 19 Aqua CX300 EXAMPLE Vlv1 Vlv2 Vlv3 Vlv4 Vlv5 Vlv6 Vlv7 Vlv8 First valve group number Second valve group number When Group 3 is activated, valves 1,2,5 and 6 will open to supply water. To set a valve sequence, the ‘Set valve sequence’ function must first be enables on the configuration screen.

  • Page 20: Programs

    Aqua CX300 See also: "(De)activate valves" on page 62. After assigning the desired valves to groups, open the 'Valve Percentage' submenu. Valve percentage (%) The percentage of the 'Irrigation time' or 'Irrigation volume' that the valve should irrigate. Set the irrigation time and irrigation volume for each irrigation program using the 'Irrigation' menu.
  • Page 21 Aqua CX300 Irrigation volume Irrigation time Pre-rinse time Post-rinse time Main pause time Number of valve group rep. Number of valves simultaneously Minimum flow Maximum flow Flow alarm delay Path: Settings>Programs>Program name>Irrigation Irrigation volume 0 - 9999 Litres The volume of irrigation water (in litres) to be supplied by each valve in the valve group.
  • Page 22 Aqua CX300 Number of valves simultaneously 1 - 6 The number of valves that may be active simultaneously. Irrigation will occur in separate blocks based on the number of valves set here. Please bear in mind the maximum capacity of the valve module when entering this setting.
  • Page 23 Aqua CX300 3.3.1.2 EC control Enable EC control Day EC setpoint Night EC setpoint Max. calc. EC setp. /alarm Min. alarm zone of control EC Max. alarm zone of control EC Max. difference of monitor EC Maximum fresh water EC...
  • Page 24 Aqua CX300 Calc. EC value = EC setpoint + Radiation influence + Pre-meas. EC Min. alarm zone of control EC 0 - 9.9 mS/cm The value in mS/cm that the measured control EC must drop below the calculated EC setpoint for an alarm to be triggered.
  • Page 25 Aqua CX300 End of radiation trajectory for EC 0 - 1000 W/m² The radiation level at which the radiation influence on the control EC is at its maximum. Max. radiation influence on EC -9.9 - 9.9 mS/cm The maximum value by which the EC may be lowered (or raised) based on the radiation level.
  • Page 26 Aqua CX300 Maximum control percentage of mixer valve 0 - 100 % 1 -> 99: The percentage of the total cycle time that the mixer valve may be actuated. 100: Maximum control percentage EC has no influence. This setting limits the length of time that the mixer valve will be actuated, so that a delay in the dosing system (e.g.
  • Page 27 Aqua CX300 Monitor the trend of the measured EC (Control EC) in relation to the calculated EC setpoint in the 'Activities' summary. Calibrate the mixer valve as follows: 1. How to set the optimum gain: If differences between the measured EC and calculated EC setpoint are quickly corrected, proceed to step 2.
  • Page 28 Aqua CX300 Figure 3-8 EC integration time 3.3.1.3 EC pre-blending EC pre-blending active EC pre-blending setpoint Minimum alarm zone of EC pre-blending Maximum alarm zone of EC pre-blending Alarm delay for EC pre-blending Response to EC pre-blending alarm Gain Differentiation time Maximum control percentage Path: Settings>Programs>Program name>EC-pre-blending...
  • Page 29 Aqua CX300 Response to EC pre-blending alarm The action that you want the controller to take when an EC or pH alarm is triggered: Pause: Pause irrigation Continue: Continue irrigation with fresh water (without drain water). Gain of EC pre-blending 0 - 1000 The factor that determines how many seconds the mixer valve must be actuated, if a difference arises between the calculated EC setpoint and the measured EC.
  • Page 30 Aqua CX300 Minimum alarm zone of control pH 0 - 9.9 The value (in pH units) that the control pH (as measured by the control sensor) must drop below the calculated pH setpoint for an alarm to be triggered. Maximum alarm zone of control pH 0 - 9.9 The value (in pH units) that the control pH (as measured by the control sensor) must drop below the calculated pH setpoint for an alarm to be triggered.
  • Page 31 Aqua CX300 Moving pH average active Enables you to activate the calculation of a moving average of the pH measurements. Time span of moving pH average The time span over which a moving average of the pH measurements will be calculated.
  • Page 32 Aqua CX300 pH integration time 0 - 1000 sec. 0: The integration time is disabled. 1 -> 100 -> 300: The degree to which the controller will aim to achieve an equilibrium in operating the pH dosage valves. When there is no difference between the measured pH and calculated pH setpoint, the integration time ensures that the correct quantities of acid and lye (alkali) are dosed.
  • Page 33 Aqua CX300 Figure 3-9 pH gain Figure 3-10 pH integration time 3.3.1.5 Pre-mix unit To enable pre-mix unit control, enter the following settings: Set 'Enable EC control' to 'Yes'. Set 'Flow rate meter' to 'Active'. Set 'Pre-mix / empty mixer tank’ (if EC control is active) to 'Active'.
  • Page 34 Aqua CX300 Empty mixer tank Not active: Do not empty mixer tank. Irrigation: Empty mixer tank prior to the next irrigation cycle. Pre-rinse & Irrigation: Empty mixer tank once pre-rinsing or irrigation of the crop is complete. Pre-mix unit Not active: Do not pre-mix unit.
  • Page 35 Aqua CX300 Time start 1 Not active: The time start is disabled. Monday -> Sunday: The day of the week on which a time start will be executed. Every day: The time start will be executed every day. A time start will be executed when the pre-set time is reached.
  • Page 36 Aqua CX300 3.3.1.8 Cyclic start Cyclic start active Period 1: start time Period 1: cycle time Period 1: end time Period 2: start time Period 2: cycle time Period 2: end time Path: Settings>Programs>Program name>Cyclic start Cyclic start active No: Not active.
  • Page 37 Aqua CX300 3.3.1.9 Contact start Contact start active Start time End time Start level for contact start Influence active Cont. value for start influence Cont. value for end influence Max. influence on irrigation cycle Central contact Ignore main pause time Contact start active No: Not active.
  • Page 38 Aqua CX300 No: Not active. Yes: Active. Cont.value for end influence See explanation below. Cont.value for start influence 0 - 100 % The following applies if a low start value and a high end value is set: If the measured value is equal to or lower than the 'Cont. value for start influence', no influence will be applied to the size of the irrigation cycle.
  • Page 39 Aqua CX300 If the measured value is lower than or equal to the pre-set end value, then the maximum influence will be applied. Max. influence on irrigation cycle: -500 - 500 % The maximum influence on the size of the irrigation cycle, resulting from the contact input value (e.g.
  • Page 40 Aqua CX300 End time of radiation start The time after which a radiation start may no longer take place: Real time: fixed point in time. Sunrise: time before (-) or after sunrise. Sunset: time before (-) or after sunset. No start will be executed if 00:00:00 (real time) is set for the end time.
  • Page 41 Aqua CX300 Start time of frost prevention sprinkling The time after which frost prevention sprinkling may start for the first time. Real time: Fixed time point in time. Sunrise: time before (-) or after sunrise. Sunset: time before (-) or after sunset.
  • Page 42 Aqua CX300 Ignore main pause time No: The valve group will only be activated once the main pause time has elapsed. Yes: The valve group will be activated immediately, even if the main pause time has not yet elapsed. If the valve group is already active, the start signal will not be stored.
  • Page 43 Aqua CX300 3.3.1.13 Program characteristics Fogging/roof sprinklers Fogging priority Irrigation based on Set valve sequence External EC/pH control Response to EC/pH alarm Flow rate alarm Response to external contact Stir fertilizer tanks <1 - 8> Irrigation by Open valve delay Auxiliary output Path: Settings>Programs>Program name>Program characteristics...
  • Page 44 Aqua CX300 External EC/pH control No: External EC/pH control will remain enabled during pre-rinsing or post-rinsing of the crop. Yes: External EC/pH control will be disabled during pre-rinsing or post-rinsing of the crop. Flow rate alarm The valve group will be paused if a valve in that group is skipped because the flow rate was too low or too high.

  • Page 45: General

    Aqua CX300 Program output 0 - 10 Enables you to assign a program (auxiliary) output to a program. An output can be assigned to more than one program. However, we do not recommend assigning the same output to an irrigation program and a fogging program, because they may be active simultaneously.
  • Page 46 Aqua CX300 Automatic summer time will take effect at 02:00 on the last Sunday in March. At that time, the sunrise and sunset times will be set forward by one hour. Automatic summer time will end at 03:00 on the last Sunday in September. At that time, the sunrise and sunset times will be set back by one hour.
  • Page 47 Afterwards, switch the system off and back on. Only one module may be assigned an ID at the same time. For a detailed explanation on how to assign an ID to a module, see the Aqua CX300 Installation Manual. Reset overload protection Once the cause of the overload has been removed, reset the overload protection function.
  • Page 48 Aqua CX300 Measurements Name Value Sensor Range Path: Settings>General>I/O>Measurements Name The name of the measurement. Value Measured value. Meaning of the error codes: Unknown: Unknown error. Conv: No conversion defined. Port: No connection defined. ADC: ADC error. Range: Outside of measurement range.
  • Page 49 This time zone is used to calculate at what times sunrise and sunset will occur. Synopta Select whether Synopta is present or not. The Synopta software enables you to operate and display information from the Aqua CX300 using a PC. Yes: Is present. No: Is not present. Alarm test Yes: Generate an alarm message for testing purposes.
  • Page 50 Aqua CX300 If the measurement drops or rises faster than this rate, an alarm will be triggered because the sensor is probably faulty. Radiation measurement Yes: Activate the radiation measurement. Radiation smooth rate The rate at which the measured radiation level will be increased or decreased.
  • Page 51 Aqua CX300 Water configuration Flow rate meter Flow rate factor Central contact Type of central contact Assign valves to 2nd group Assign valve to second group External EC/pH ctrl selection Type of EC control Correction of ctrl EC sensor Alarm delay of ctrl EC sensor...
  • Page 52 Aqua CX300 Flow rate meter present Select the flow rate meter that is present for measuring the volume of water applied per valve and monitoring the flow rate: None: No flow rate meter is present. Water meter: A water meter with pulse contact is present.
  • Page 53 Aqua CX300 Set valve sequence Activate the ability to change the sequence in which the valves will open in a particular valve group. The sequence of the valves is determined by the sequence number entered for each valve. External EC/pH control Select an external EC or pH controller.
  • Page 54 Aqua CX300 Correction of second EC sensor -0.5 - 0.5 mS/cm This correction value will be added to the measured value in order to correct a static deviation. Alarm delay of second EC sensor The length of time that the EC sensor alarm will be delayed.
  • Page 55 Enter value 00:00:00 to disable the alarm. Type of irrigation unit Select the type of irrigation unit present. Type 1: Mixer tank (special) Type 2: Mixer tank (standard) Type 3: Direct injection See the diagrams in "Aqua CX300 Installation Manual".
  • Page 56 Aqua CX300 Filter flushing Select whether an external filter flushing system is present that can be actuated using a contact. No: No filter present. Yes: Filter present. Stirrers in fertilizer tanks present No: No stirrers present. Yes: Stirrers present. Stirring time before start The duration that the fertilizers in the nutrient tanks will be stirred prior to irrigation.
  • Page 57 Aqua CX300 Current system pump Manually select the current system pump. If 'Automatic' is selected, the controller will switch to the other pump at midnight. If desired, you can select a different pump for the remainder of the day. Off delay of pumps The delay time between the end of an irrigation cycle and the deactivation of the system pumps.
  • Page 58 Aqua CX300 Central: Reset the total water consumption of all valve groups. All groups: Reset the registration data of all valve groups. Group 1-3: Reset all registration data of a specific valve group. 3.3.2.2 Filter flushing To enable filter flushing control, enter the following setting: Set 'Flush filter' to 'Yes'.
  • Page 59 Aqua CX300 Time active for start flushing The number of hours that the system pump must be active for filter flushing to start. 3.3.2.3 Flow rate measurement Date Time Path: Settings>General>Flow rate measurement Manual control None: Not active. Start: Start the flow rate measurement.

  • Page 60: Setting Up Valves

    Aqua CX300 Contact start 1, type Contact start 10, type Select the type of contact start to be executed after entering the valve number: Off: Execute a contact start when the contact opens. On: Execute a contact start when the contact closes.
  • Page 61 Aqua CX300 Path: Settings>Valve settings Active No: Not active. Yes: Active. Valve group Nº 0 - 10 Select the valve group to which you want assign the valves. Number of first valve group 0 - 10 The valve group number of the first valve group that the valve has been assigned to.

  • Page 62: Assign Group To Program

    Aqua CX300 Flow rate 0 - 1000 The measured flow rate of the water being supplied to the relevant valve or valve group, expressed in litres per minute. Assign group to program Group 01 Group 10 Path: Assign group to program Select the valve group that you want to assign the valves to.

  • Page 63: Reports

    Aqua CX300 Reports Activities Start conditions by valve group Registration by valve group Registration by valve Alarm messages Fogging Frost prevention sprinkling Weather (Meteo) Astronomical data Water consumption Central Queue Flow measurement results Measurements EC control activities pH control activities...
  • Page 64 Aqua CX300 Meaning Litre (left) The number of litres of water that the valve has supplied since the last start. Litre (right) The number of litres of water that the valve still needs to supply. Measurements Pre-rinse On The crop is being rinsed with fresh water before the application of irrigation and nutrients.

  • Page 65: Start Conditions By Valve Group

    Aqua CX300 A valve group is paused when the upper bar is flashing (Vlv. Time Litre Litre) During the flow measurement, no data is displayed in the left column of the activity summary. This summary appears automatically whenever a valve group is activated.

  • Page 66: Registration Per Valve Group

    Aqua CX300 Repetition 0 & 10 The number of times a start will still be repeated (the number of times executed minus the number of times set). Contact start level 0 & 100 The level that must be measured by the sensor for a contact start to be executed.
  • Page 67 Aqua CX300 Valve group status Idle: Not active. Paused: Valve group is paused. Building pressure: The system is building up pressure in the pipes prior to irrigation. Stirring fertilizer tank: The fertilizer tanks are being stirred prior to irrigation. Filling mixer tank: The mixer tank is being filled if it was emptied at the end of the previous irrigation cycle or phase.

  • Page 68: Registrations Per Valve

    Aqua CX300 Av. control EC/24hr-period 0 - 10 mS/cm The average value of the measurement in question (measured during the previous 24- hour period). Av. Monitor EC/24hr-period 0 - 10 mS/cm The average value of the measurement in question (measured during the previous 24- hour period).

  • Page 69: Alarm Messages

    Aqua CX300 The duration of the irrigation phases and repetitions are totalled during an irrigation cycle. Volume of last irrig. cycle 0 - 100000 Litres The number of litres of water that were applied during the last irrigation cycle. The number of litres applied during the irrigation phases and repetitions are totalled during the irrigation cycle.

  • Page 70: Frost Prevention Sprinkling

    Aqua CX300 If no group is active for fogging purposes, then the fogging program is either finished or not in use at this moment. Frost prevention sprinkling Measured temperature Status Date first start Time first start Time of last stop Number of repetitions Path: Summaries to display>Frost prevention sprinkling...

  • Page 71: Astronomical Data

    Aqua CX300 Radiation Radiation sum of current day Radiation sum of previous day Wind speed (smoothed) Wind speed (peak) Rain detection Outside temperature Outside RH Path: Display summaries>Weather Measured radiation 0 - 1600 W/m² The measured radiation level in W/m² (smoothed).

  • Page 72: Water Consumption

    Aqua CX300 Path: Display summaries>Astronomical data Sunrise The sunrise time. Sunset The sunset time. Time The current time. Date The current date. Summer time (Daylight Saving Time) No: Disable summer time. If summer time is disabled, the controller will set the clock back by one hour and recalculate the sunrise and sunset times.

  • Page 73: Central

    Aqua CX300 Water consumption /week 0 - 100000 Litres The volume of water that the relevant valve group has supplied, since the first day of the current week (i.e. the start of the day on Monday). Water consumption /period 0 - 100000 Litres The number of litres of irrigation water that have been applied since the 'Registration reset time'.

  • Page 74: Ec Control Activities

    Aqua CX300 Flow rate 0 & 1000 The measured flow rate of the water being supplied to the valve or valve group in question, expressed in litres per minute. 4.14 EC control activities Pre-set setpoint Calculated setpoint Pre-blending EC setpoint...

  • Page 75: Ph Control Activities

    Aqua CX300 Control temperature 0 - 30°C The water temperature measured by the control EC sensor. Monitor temperature 0 - 50°C The water temperature measured by the monitor EC sensor. Pre-measurement temperature 0 - 50°C The water temperature measured by the pre-measurement EC sensor.

  • Page 76: System Summary

    Aqua CX300 Ratio of dosage valve 1 Ratio of dosage valve 8 0 - 500 In the case of control using dosage valves: This sets the dosage ratio of the EC valve in relation to the other EC valves. In setting the dosing ratios, it is the relationship between the values that is important, rather than the specific value of each valve.

  • Page 77: Alarms And Notifications

    Aqua CX300 Alarms and notifications If an alarm is triggered, the controller will pause, stop or continue irrigation. This depends on the alarm message that has been triggered. The most recent alarm message will remain on the display. Write down the alarm message if you need to contact your installer.

  • Page 78: External Contact

    Aqua CX300 External contact External contact, valve group deactivated The external contact is transmitting a signal. As a result, the valve group has stopped and the next start will be executed. Check the cause of the external contact. External contact, valve group paused The valve group has been paused, because the external contact has been detected.
  • Page 79 Aqua CX300 Depending on the option selected for 'Response to EC/pH alarm', the program will either be paused or irrigation will continue with fresh water. Check: the measured EC value (control, monitor or pre-blending EC) and compare this value with the calculated EC setpoint.
  • Page 80 Aqua CX300 Difference of monitor EC too great: group continued The difference between the measured control EC and the measured monitor EC is too great ('Maximum difference of monitor EC'). Depending on the option selected for 'Response to EC/pH alarm', the program will either be paused or irrigation will continue with fresh water.
  • Page 81 Aqua CX300 Depending on the option selected for 'Response to EC/pH alarm', the program will either be paused or irrigation will continue with fresh water. Check: the measured EC value (control, monitor or pre-blending EC) and compare this value with the calculated EC setpoint.
  • Page 82 Aqua CX300 Depending on the option selected for 'Response to EC/pH alarm', the program will either be paused or irrigation will continue with fresh water. Check: the measured EC value (control, monitor or pre-blending EC) and compare this value with the calculated EC setpoint.
  • Page 83 Aqua CX300 Depending on the option selected for 'Response to EC/pH alarm', the program will either be paused or irrigation will continue with fresh water. Check: the measured EC value (control, monitor or pre-blending EC) and compare this value with the calculated EC setpoint.
  • Page 84 Aqua CX300 External EC control, group continued External EC control has triggered an alarm. As a result, EC control has stopped and the valve group has continued irrigation with fresh water. Check EC control. Control pH too low, group has been paused The measured pH value (control or monitor pH) is too low.
  • Page 85 Aqua CX300 Check: the measured pH value (control or monitor pH) and compare this value with the calculated pH setpoint. The pre-set pH setpoint whether the 'Maximum pH zone' is set too low. Difference of monitor pH too great: group paused The difference between the measured control pH and the measured monitor pH is too great ('Maximum difference of monitor pH').
  • Page 86 Aqua CX300 the pre-set pH setpoint whether the 'Minimum pH zone' is set too low. Fresh water pH too high, group paused The measured pH value (control or monitor pH) is too high. Depending on the option selected for 'Response to EC/pH alarm', the program will either be paused or irrigation will continue with fresh water.

  • Page 87: Contact Sensors

    Aqua CX300 Alarm of external pH control, group continued External pH control has triggered an alarm. As a result, pH control has stopped and the valve group has continued irrigation with fresh water. Check pH control. Contact sensors Sensor alarm contact 1 Sensor alarm contact 10 The input signal of the contact start has been exceeded.

  • Page 88: Outside Conditions

    Aqua CX300 Outside conditions Frost prevention sprinkling alarm The outside temperature is too low (start frost prevention sprinkling). Outside temperature changing too fast The outside temperature has risen or fallen too quickly in a short period of time. Check if the measurement is accurate. The error may be due to a faulty sensor input or the sensor may have been hit by lightening, for instance.

  • Page 89: Re-Start

    Aqua CX300 Re-start System restart after power failure, settings deleted An internal malfunction or controller power failure has occurred. The active valve groups have been deactivated. The pre-set values have been erased. All settings will need to be re-entered after the controller has restarted automatically.
  • Page 90 Aqua CX300 Check the sensor. Contact your installer. Rain detector sensor alarm The value measured by the sensor is outside the measurement range. Check the sensor. Contact your installer. Wind speed sensor alarm The value measured by the sensor is outside the measurement range.

  • Page 91: Error

    Aqua CX300 Check the sensor. Contact your installer. 5.11 Error Watchdog switched off, remove watchdog jumper Alarm monitoring in the process computer is disabled. Contact your installer. Your installer can remove the watchdog jumper for you, so that alarm monitoring will be enabled again.

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