Page 1 Measuring - Controlling - Regulating All from the same source welba.de Universal tank control WTS-300 Firmware V2.0 Installation and operating instructions for plant engineering companies, installers and service engineers Programmable via configuration software WELBA „KONSOFT" WTS-300 G1 Page 1 105204 WTS-300 V2.0 - 11.01.2019...
Page 2: Table Of Contents
Page 53 Tank monitor: Display fault memory Page 53 Listing fault codes and their description Page 54 7.5.1 Critical tank monitor alarms (red) Page 54 7.5.2 Informative tank monitor alarms (green) Page 55 Page 2 105204 WTS-300 V2.0 - 11.01.2019...
Page 3 Circuit diagram is stored in the control box Publisher: WELBA GmbH Tel: +49 (0)2638 / 9320-0 Electronic Control Engineering Fax: +49 (0)2638 / 9320-20 Gewerbepark Siebenmorgen 6 E-mail: info@welba.de D-53547 Breitscheid Internet: www.welba.de Page 3 105204 WTS-300 V2.0 - 11.01.2019...
Page 4: Introduction
1.1 Information about this operating instructions These operating instructions are intended for the use by plant engineers, installers or service technicians of the WTS-300 universal tank control. This manual contains all necessary suggestions, Information, recommendations and advice for the safe and proper installation and commissioning of the tank control.
Page 5: Limitation Of Liability
! Technical modifications ! Use of unapproved spare parts (e.g. batteries) Otherwise, our general terms and conditions as well as the terms of delivery of WELBA GmbH and the legal regulations valid at the time of conclusion of the contract are ap- plicable.
Page 6: Device Description
NOTE: The KONSOFT PC-Software has been thoroughly tested and has proven itself hundreds of times in customer use. Despite all care, we point out that the use of the free PC-Software is at your own risk. WELBA does not accept any liability for damages or loss of data resulting from the installation or use of the Software.
Page 7: Items Supplied
1. Introduction 1.5 Items supplied Controller WTS-300 Holder Rubber seal Sensor Fixing screws 1.6 Dimensions °C Robot Stop Valve open Mode RESET Robot STOP Page 7 105204 WTS-300 V2.0 - 11.01.2019...
Page 8: Technical Data
Protection class II, Overvoltage category III, pollution degree I Environment specifications: - Operation temperature 0° .. +50°C - Storage temperature -20° .. +70°C - max. humidity 75% (no dew) Technical data subject to change Page 8 105204 WTS-300 V2.0 - 11.01.2019...
Page 9: Sensor Dimensions And Technical Data Sensor
2 metres Protection type IP 65 Order no. TF1A-2 Sensors other than our standard type are available on request (different bush form or cable length). Some of the options are shown here. Page 9 105204 WTS-300 V2.0 - 11.01.2019...
Page 10: Safety
In preparing the operating instructions for the end user, especially the chapter on “Safety”, account must be taken of local regulations. The parameter settings of the WTS-300 as supplied do not correspond to the intended use. This can lead to undefined behaviour by individual components when the system is commissioned.
Page 11 The device must not be used if the housing or connection terminals are damaged. No fluids must penetrate the housing. The universal tank control may not be exported to the USA without the manufacturer's express permission. Page 11 105204 WTS-300 V2.0 - 11.01.2019...
Page 12: Intended Use
Please read carefully before installation and before any work on or with the regulator. Universal tank controllers WTS-300 are designed to control heating systems, conden- sing units, alarms, fans, etc. in milk cooling tanks as well as to monitor milk quality.
Page 13: Wiring, Screening, Earthing
EMC. Important note concerning the external fuse ! The transformer, which is installed in the WTS-300, has a two-chamber safety wind- ing, which is only short-circuit-proof due to the built-in thermal protection. If the tem- perature exceeds 145 ° C, there is a risk of damage!
Page 14: Installation
3.2 Unpacking and storage If the packaging is damaged or something is missing, do not fit the temperature controller. In this case please contact Welba. If you keep the temperature controller for a period before using it, store it in a clean dry place at a temperure of between -20°C and +70°C.
Page 15: Fitting The Sensor
(not even within the switchbox). Temperature range sensor cable -10°C .. +70°C The WTS-300 has been designed for connection to various types of sensor (see technical data). It can function properly only if one of those sensor types is installed and the parameters are correctly set.
Page 16: Electrical Connection
! Close the switchbox and turn on the mains voltage. ! Switch on the controller and set the parameters (possibly using the optional WELBA-KONSOFT configuration software). ! Plug the pre-cabled plug-in terminals of the components into the controller. ! Close the switchbox.
Page 17: Wiring
, Contactors are to be fitted with an RC protective circuit. , Connection of the digital inputs: Only the output signal of the control provided at terminal 38 must be connected to the digital inputs (via potential-free switching contacts)! Page 17 105204 WTS-300 V2.0 - 11.01.2019...
Page 18: Connection Diagram
Digital inputs GND * = capacitively decoupled from GND If the tank housing is to be used as one of the two level poles, this pole must be connected to GND*. Connection Page 18 pressure sensor 105204 WTS-300 V2.0 - 11.01.2019...
Page 19: Wiring The Digital Inputs
Digital inputs 4.6 Connection robot If the WTS-300 and the robot have a separate power supply, the robot can still be stopped (by corresponding connection) in the event of power failure. Robot requires an active signal to stop (high-active)
Page 20: Operation
5. Operation 5.1 Function overview The WTS-300 is a universal tank control unit which combines all the basic functions in one device: - milk cooling control - comprehensive cleaning control - an extended robot interface - an extended tank monitor All basic functions can be selected and operated from the working level.
Page 21 (heater, pump, detergent injection) can be set separately. The automatic switchover from acidic to alkaline detergent is also adjustable. The WTS-300 controls the different processes and times fully automatically. Following a power failure the control unit will restart in the mode it was in before.
Page 22 5. Operation Page 22 105204 WTS-300 V2.0 - 11.01.2019...
Page 23: The Configuration Software Konsoft
Despite all care, we point out that the use of the free PC-Software is at your own risk. WELBA does not accept any liability for damages or loss of data resulting from the installation or use of the Software.
Page 24: Guideline For The Initial Installation / Parameterization
Assign occurrences to the various alarms in the F-parameters (alarm horn, LED-display, SMS-message, etc.) Step 8 Adjust cooling and cleaning parameter. See sections 8.2 to 8.5 Step 9 Test cleaning sequence on proper function. See section 6.3.1. Page 24 105204 WTS-300 V2.0 - 11.01.2019...
Page 25 See section 5.4. Note: For data evaluation, the Software Konsoft uses the entered date of the WTS-300. If date and time are not entered correctly, the evaluation is also incorrect! Now the control unit's parameters must be properly set in line with the features of your system.
Page 26: Setting The Date And Time
Use the arrow keys to set the correct day. Then set the hour and minute displays in the same way. When finished press the SET button. Robot Setting is completed, and the actual time is displayed. STOP Page 26 105204 WTS-300 V2.0 - 11.01.2019...
Page 27: Operation In Levels
Here an individual behaviour can be assigned for each fault. Configuration - (A parameter) Determination / Parameterisation of the hardware configuration I / O test parameters - (o parameter) Is intended for commissioning the control system. Page 27 105204 WTS-300 V2.0 - 11.01.2019...
Page 28: Operation Of Working Level
, Start cooling mode , Start continuous stirring , Start cleaning mode , Robot operation , Milk removal via the butterfly valve , Observe tank monitor °C Robot Stop Valve open Mode RESET Robot STOP Page 28 105204 WTS-300 V2.0 - 11.01.2019...
Page 29: Button Functions
5. Operation 5.6.1 Button functions „OFF“ button To change to a different mode, always first press the “OFF” button. active modes are closed down when the OFF button is pressed. Switch control unit to STAND-BY Close down cleaning mode or continuous stirring mode prematurely Acknowledge error Change to programming mode (hold down button for 3 seconds) „SET“...
Page 30: Meaning Of The Leds
The control is in error mode and must be acknowledged with the "OFF" button. LED “END OF CLEANING / TANK EMPTY” permanent Cleaning successfully finished - tank is ready for further filling. Page 30 105204 WTS-300 V2.0 - 11.01.2019...
Page 31 LED (red) "DON‘T ADD MILK !” flashing critical alarm is on. permanent critical alarm is on - has already been acknowledged everything ok - milk can be loaded. Page 31 105204 WTS-300 V2.0 - 11.01.2019...
Page 32: Operation Modes
There are various cooling start delay options. See section 9.4 After the start of the cooling mode , The COOLING mode LED is lit The robot is enabled (LED off). Robot Stop The butterfly valve is closed (LED off). Valve open Page 32 105204 WTS-300 V2.0 - 11.01.2019...
Page 33 Press the “AGITATOR” button: (from OFF mode) If parameter [c25] is set higher than '0', when the button is pressed the agitator runs for the set number of minutes. Press “OFF” button: Switches off continuous stirring mode prematurely. Page 33 105204 WTS-300 V2.0 - 11.01.2019...
Page 34 Robot Stop started / stopped. Valve open Hold down the ROBOT STOP button for approx. 3 seconds: robot operation is either enabled or stopped (Toggle function) The current switching status is indicated by LED. Page 34 105204 WTS-300 V2.0 - 11.01.2019...
Page 35 LED shows red: DO NOT LOAD MILK! The fault is indicated in the display. RESET A detailed description of the tank monitor function may be found in section 7.1 of these operating instructions. Page 35 105204 WTS-300 V2.0 - 11.01.2019...
Page 36: Cleaning
Metering pump Metering pump valve valve for alcaline for acid detergent detergent Agitator Pump Drain valve Cleaning method for milk cooling tanks, where alkaline and acidic detergents are sup- plied by separate dosing pumps. Page 36 105204 WTS-300 V2.0 - 11.01.2019...
Page 37: Displacement Cleaning With Feed Container, Dosing Pumps In Circulation Line
Level 2 Pump Level 1 Feed container Drain valve Cleaning method for milk cooling tanks, where water and detergent are dosed level- controlled in a feed container, before pumped out for tank cleaning. Page 37 105204 WTS-300 V2.0 - 11.01.2019...
Page 38: Cleaning Programme Diagram
For the first parameter of each cleaning stage the following can be parameterised: Water intake by level Adjustment of dosing times for detergents Heat-up time (variable - until the set temperature is reached) Page 38 105204 WTS-300 V2.0 - 11.01.2019...
Page 39 - ALC - alkaline detergent is dosed - ACI - acid detergent is dosed Here you can select whether the detergent is to be dosed in programme step D1 or D2 or in the feed container. Parameter [r20] Page 39 105204 WTS-300 V2.0 - 11.01.2019...
Page 40: Explanation And Programming Of The Cleaning Process
In case of green Agitator and pump start to run. n13 have to be parameterized on „0“ Another option is to select an 'additional water intake time' using [n13]. Page 40 105204 WTS-300 V2.0 - 11.01.2019...
Page 41 Agitator and pump start to run. Water circulates in the tank. parameterized on „0“ Another option is to select an 'additional water intake time' using [n33]. * (D1 or D2 in cleaning programme diagram) Page 41 105204 WTS-300 V2.0 - 11.01.2019...
Page 42 An additional time can be defined in parameter [n45], in which the drain valve opens (agitator and cleaning pump continue to run) Agitator and pump switch off. Drain valve opens for the pre-set time [n46]. See also [n45]. Page 42 105204 WTS-300 V2.0 - 11.01.2019...
Page 43 If, in the event of intake by level, the level is not reached after a pre-set time [r32], the cleaning cycle is interrupted. See section 7.5.3 - F44 Page 43 105204 WTS-300 V2.0 - 11.01.2019...
Page 44 An additional time can be defined in parameter [n75], in which the drain valve opens (agitator and cleaning pump continue to run) Agitator and pump switch off. Drain valve opens for the pre-set time [n76]. See also [n75]. Page 44 105204 WTS-300 V2.0 - 11.01.2019...
Page 45 , An abort criterion was met (e.g. predetermined time for reaching the level exceeded) If cleaning has been completed without errors, the control unit switches to "OFF mode" or "cooling mode" depending on the parameter setting. Page 45 105204 WTS-300 V2.0 - 11.01.2019...
Page 46: Service Functions For Testing The Cleaning Cycle
! By repeatedly pressing the CLEANING button, the cycle can now be progressed step by step. Can be terminated via OFF button at any time, with drain phase. programme step Tank monitoring function and alarms are deactivated !!!!! Page 46 105204 WTS-300 V2.0 - 11.01.2019...
Page 47 6. Cleaning Page 47 105204 WTS-300 V2.0 - 11.01.2019...
Page 48: Tank Monitor And General Fault Handling
"A" parameters (see section 8.10) must be assigned to a relay or the SMS function must be activated. The tank monitor of the WTS-300 has the following alarm types: Critical tank monitor alarms (red LED + fault code in the display) During cooling: - min.
Page 49 If several alarms are present, the reset button must be pressed several times. See section 7.3 (Turns off when cleaning cycle runs for at least 10 minutes ...) Is displayed as a blinking display code only. System alarm Page 49 105204 WTS-300 V2.0 - 11.01.2019...
Page 50: Tank Monitor: Milk Removal Yes Or No
No alarm = off ! The driver goes to the WTS-300 and checks the tank monitor. If the green LED is on, milk may be drawn off. ! Once the milk has been taken, the driver starts the cleaning process.
Page 51 Green = off critical alarm = on The driver goes to the WTS-300 and checks the tank monitor. The red LED is lit or flashing, an error code blinks in the display and, depending on the circumstances, a horn may sound.
Page 52 Green = off critical + informative alarm = on The driver goes to the WTS-300 and checks the tank monitor. Green and red LEDs are flashing, an error code blinks in the display and, depending on the circumstances, a horn may sound The driver informs the farmer ->...
Page 53: Tank Monitor: Handling Multiple Faults
If no button is pressed for 3 seconds, the display switches back to the time. It is only when the cleaning cycle is active for at least 10 minutes that the tank monitor resets all critical alarms. Page 53 105204 WTS-300 V2.0 - 11.01.2019...
Page 54: Listing Fault Codes And Their Description
Minimum acting time = [H31] F15 Agitator fault in cooling mode (milk not stirred) Alarm functions only if optional “Welba agitator monitor” is installed and parameters set [A71]. Alarm occurs after the cooling mode is started, if a backpressure by the milk has not been detected on the stirrer within the time [H40].
Page 55: Informative Tank Monitor Alarms (Green)
F39 Battery voltage too low The alarm can function only if the optional power pack is installed. The alarm is triggered if the battery charge is no longer sufficient. See also section 9.21 Page 55 105204 WTS-300 V2.0 - 11.01.2019...
Page 56: System Alarms Cleaning
- the red LED “FAULT” then flashes, with error code F42 During washing the thermal contact of the washing pump has triggered (if parameter set in [r12]. Possible cause of fault: - Cleaning pump overheated. Page 56 105204 WTS-300 V2.0 - 11.01.2019...
Page 57 - washing completed - the red LED “FAULT” flashes During washing the heater's dry-running protection has triggered (if set in [r39]). Possible cause of fault: - manual butterfly valve on tank outlet closed. Page 57 105204 WTS-300 V2.0 - 11.01.2019...
Page 58: System Alarms Cooling
- Compressor overheated / faulty F54 Monitoring stirring unit (directly) Alarm is only possible, if the "WELBA stirring unit monitoring" is installed and parameterized [A71] and activated in parameter [P24]! Alarm occurs if the stirring unit monitoring detects one of the following stirring unit errors: - no stirring unit activity, although stirrer was switched on.
Page 59: System Alarms External Sensors
- only for module 003: Phase error, or - only for module 003: phase twisted when connected See also section 9.22 F61 Error GSM-SMS-Modul - no communication with GSM-SMS-Modul 7.5.6 Test alarm F99 Test alarm (see section 9.18) Page 59 105204 WTS-300 V2.0 - 11.01.2019...
Page 60: Setting Of Parameters
8. Setting of parameters 8.1 Change and save parameter values The WTS-300 is configured in 10 different parameter levels. To change parameters in one of the lower levels, enter the corresponding 'level code' CODE Working level for normal daily operation...
Page 61 Return without saving the values: Press the OFF button - or If no button is pressed for 60 seconds: The controller automatically returns to the OFF mode. All changes are lost. Page 61 105204 WTS-300 V2.0 - 11.01.2019...
Page 62: Level "General Cooling Parameters
1 second during a cooling pause. Duration of 'intermediate stirring LONG' 0 .. 999 min. Period in minutes during which the agitator operates if the UP arrow button is pressed for approx. 3 seconds during a cooling pause. Page 62 105204 WTS-300 V2.0 - 11.01.2019...
Page 63 A correction can be applied to the value measured by the sensor. Then applies it cumulatively throughout the entire measurement range. Software version Installed software version The software version installed is shown to help service technicians. Page 63 105204 WTS-300 V2.0 - 11.01.2019...
Page 64: Level "Extended Cooling Parameters
/ long toggling by button Automatic start to continuous stirring 0 .. 1 when cooling mode ends see section 9.10.1 deactivated activated Monitoring agitator directly [F54] 0 .. 1 see section 7.5.4 deactivated activated Page 64 105204 WTS-300 V2.0 - 11.01.2019...
Page 65 Level sensor “tank full” – no signal = alarm In case of activated litre recording [A54]: Achievement of litres [P43] entered, triggers alarm. Maximum filling quantity in litre input in hectolitres (=100 l) 0...500 (is equivalent to 0 to 50.000 litres) Page 65 105204 WTS-300 V2.0 - 11.01.2019...
Page 66 Error message if no milk feed is detected for 0 .. 300 min. X minutes from the last stop of the compressor (a switchover to the regular cooling mode does not take place) Page 66 105204 WTS-300 V2.0 - 11.01.2019...
Page 67 The LED compressor is flashing during the pause time. Thermal protection monitoring compressor 0 .. 2 deactivated high-activated (error "F53" when open) low-active (error „F53" when closed) INFORMATION: Pay attention to the function assignment [A21 - A28] Page 67 105204 WTS-300 V2.0 - 11.01.2019...
Page 68 Pressure trigger limit (pressure too low) 1 .. 99,9 % P87 Monitoring delay after start compressor 10 .. 999 sec. P88 Switch off time compressor in case of too 1 .. 15 min. low pressure Page 68 105204 WTS-300 V2.0 - 11.01.2019...
Page 69: Level "General Cleaning Parameters
0 .. 999 sec. Additional water intake time + circulation 0 .. 999 sec. Main circulation time 0 .. 999 sec. Rinse out time 0 .. 999 sec. Drain time 0 .. 999 sec. Page 69 105204 WTS-300 V2.0 - 11.01.2019...
Page 70 Running times cleaning stage 9 (rinse out) - hidden, if [r49] = 0 Water intake time 0 .. 999 sec. Rinse out time with water intake 0 .. 999 sec. Drain time 0 .. 999 sec. Page 70 105204 WTS-300 V2.0 - 11.01.2019...
Page 71 2 [n54] (hidden if r35 = 0 / 1) n111 Post-heating temp. during circulation 0 .. 99,9 °C 40,0 in cleaning stage disinfection [n74] (hidden if r35 = 0 / 1 / 2) Page 71 105204 WTS-300 V2.0 - 11.01.2019...
Page 72: Level "Extended Cleaning Parameters
1: currentless open Switching mode drain valve 2 (Default 0) 0: normally closed 1: currentless open Settings to start cleaning (see section 9.3.1) Cleaning enable via digital input (Default 0) 0: deactivated 1: activated Page 72 105204 WTS-300 V2.0 - 11.01.2019...
Page 73 Switch off the heater after x seconds without pressure Over temperature protection heater (Fault F49) (Default 0) To protect the heater (open in the event of a fault) 0: No protective contact 1: Protective contact active Page 73 105204 WTS-300 V2.0 - 11.01.2019...
Page 74 1 .. 2 additionally be assigned to one of the relays in the A Drain valve select. clean. stage 9: Rinse out 1 .. 2 parameters. 1: Drain valve 1 2: Drain valve 2 Page 74 105204 WTS-300 V2.0 - 11.01.2019...
Page 75 Number of cleaning cycles with step function (Default 0) Range: 0 .. 3 Display during cleaning (Default 0) 0: Display of programme step 1: Display of temperature 2: Display changes between step and temperature Page 75 105204 WTS-300 V2.0 - 11.01.2019...
Page 76 8. Setting of parameters Page 76 105204 WTS-300 V2.0 - 11.01.2019...
Page 77: Level "Service Parameters
- - - Displays the maximum temperature during the last cleaning cycle..battery voltage 0,0V ... 12,0V - - - Display the current battery voltage (Only if optional power pack is installed) Page 77 105204 WTS-300 V2.0 - 11.01.2019...
Page 78: Level "General Tank Monitor Parameters
2 = low aktiv Detergent monitoring acid by float switch 0 .. 2 0 = deactivated 1 = high aktiv 2 = low aktiv Max. temperature difference monitoring sensor 1,0 .. 5,0 during cooling mode Page 78 105204 WTS-300 V2.0 - 11.01.2019...
Page 79 A 4-digit password (not 0000) has to be entered in parameter [h98]. For the activation of the password protection the password in param- eter [h99] has to be repeated exactly. After the level code is re-entered the password query takes place. Page 79 105204 WTS-300 V2.0 - 11.01.2019...
Page 80: Level "Extended Tank Monitor Parameters
H40 Agitator fault in cooling mode - no stirring of milk 0 = deac. 0 .. 999 min. H41 Timeout "No agitator" 0 = deactivated 0 .. 999 min. H42 Min. run time agitator [to H41] 0 .. 500 sec. Page 80 105204 WTS-300 V2.0 - 11.01.2019...
Page 81 For this purpose, a 4-digit password (not 0000) must be entered in parameter [H98]. In order to activate the password protection, the password in parameter [H99] must be repeated exactly. If the level code is entered again, the password is requested afterwards. Page 81 105204 WTS-300 V2.0 - 11.01.2019...
Page 82: Level "Alarm - Event Assignment
Alarm effect In this level, each fault message F1 to F61 is assigned the effect of this alarm. See the table below. WTS-300 system alarms (only display) Informativ tank monitor alarms (green LED) Critical tank monitor alarms (red LED) Page 82...
Page 83 1 .. 13 F58 ... sensor range exceeded 1 .. 13 F60 Communication external sensors 1 .. 13 F61 Communication GSM-Modul 1 .. 13 F99 ... Test alarms (see section 9.18) 1 .. 13 Page 83 105204 WTS-300 V2.0 - 11.01.2019...
Page 84 This configuration is very important and should be the first step when setting the pa- rameters for a system. The WTS-300 supports a large number of different system configurations (with or without robot operation), milk tanks with more than one compressor, different outlet valves etc.).
Page 85 0 .. 20 assignment relay K8 0 .. 20 assignment relay K9 0 .. 20 A10 assignment relay K10 0 .. 20 assignment relay K11 0 .. 20 A12 assignment relay K12 0 .. 20 Page 85 105204 WTS-300 V2.0 - 11.01.2019...
Page 86 A41 Robot stop signal configuration (see section 4.6) 0: closing contact, robot stopped when closed 1: closing contact, robot stopped when open 2: opening contact, robot stopped when closed 3: opening contact, robot stopped when open Page 86 105204 WTS-300 V2.0 - 11.01.2019...
Page 87 Scaling determination of litres via pressure sensor Range Default (Measuring range of the pressure sensors 0 up to 1000 mBar) A60 Litre per cm filling height 0…100,0 ltr. 50,0 A61 Offset in litre 0…1000 ltr. Page 87 105204 WTS-300 V2.0 - 11.01.2019...
Page 88 0: deactivated 5: Clear bands (after deleting of the bands, the number of agitators must be readjusted) Agitator monitoring module ESVAW-001-A Switching on of the agitator by a WTS-300 relay 1: one agitator 2: two agitators 3: without function 4: without function...
Page 89 A96 Device address 1 .. 8 Language setting Range Default A98 Language setting for Konsoft monitor 0 .. 1 0: german 1: english Factory reset Range Default A99 Factory reset 0 .. 999 Page 89 105204 WTS-300 V2.0 - 11.01.2019...
Page 90: Level „I-/O- Test Parameters
0 .. 1 Test relay 9 0 .. 1 o.10 Test relay 10 0 .. 1 o.11 Test relay 11 0 .. 1 o.12 Test relay 12 0 .. 1 0: Off 1: On Page 90 105204 WTS-300 V2.0 - 11.01.2019...
Page 91 ESVAW 002 or 003 o.71 agitator 1 in watt o.72 agitator 2 in watt Display of the Software version adaptor o.98 Display of the Software version adaptor Page 91 105204 WTS-300 V2.0 - 11.01.2019...
Page 92: Other Information
A12]. Only then can the valve be opened or closed manually via the “Butterfly valve” button. Convenience function (only with pneumatic butterfly valve) Significance: if the COOLING button is pressed in OFF mode, the pneumatic butterfly valve is automatically closed. Page 92 105204 WTS-300 V2.0 - 11.01.2019...
Page 93: Safety Switch For Manual Butterfly Valve
- the COOLING button is pressed while the valve is open. Valve open - the WASHING button is pressed while the valve is closed. If the butterfly valve is closed in washing mode, the cycle is interrupted, provided [r10=2] is configured. Page 93 105204 WTS-300 V2.0 - 11.01.2019...
Page 94: Robot Control
9. Other Information 9.3 Robot control The WTS-300 offers two possibilities of controlling a connected robot: - via the button “Robot Stop” - via the signal “Cleaning active” For both functions, the appropriate parameter settings must be done beforehand. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Signal “Robot-Stop”...
Page 95: Cleaning Release By Robot
The WTS-300 can be configured in such a way that washing is not started directly by pushing the button, but in addition a robot release signal is needed.
Page 96: Different Variants For Cooling Start Delay
A new manual activation of the cooling start delay can be triggered only by a long pressing of the button “COOLING”. To cover all the different system configurations possible, the WTS-300 offers a range of variants for cooling start delay.
Page 97 If the compressor is switched off, it cannot start again until at least the quantity of milk set in parameter [P53] has been added. Page 97 105204 WTS-300 V2.0 - 11.01.2019...
Page 98: Compressor Switch-On Delay / Pre-Agitating
9. Other Information 9.5 Compressor switch-on delay / pre-agitating (Only useful when using a robot) If the milk cooling tank is filled by a robot, filling from below takes place via the tank outlet. For some tank types, the temperature sensor is positioned very close to the tank outlet.
Page 99: Function Second Temperature Sensor
When using a robot, it is possible to start the cooling mode automatically after a successful cleaning. If cleaning is not successful, the control remains in cleaning mode and manual acknowledgement is necessary. Page 99 105204 WTS-300 V2.0 - 11.01.2019...
Page 100: Heating Control
Main rinse 1 Intermediate rinse 1 Heater The WTS-300 distinguishes between two heating phases: - Heating-up phase - programme step "H“ - Further heating phase - during the main circulation (n34 or n54 and n74). During the heating-up phase, the water is heated to the temperature set (the display shows the temperature measured by sensor 1 instead of the programme stage).
Page 101: Air In The Cleaning Pump -> Automatic Venting
(rinsing cycles 0 and 9) select settings 3 and 4. During automatic venting with pressure switch evaluation, parameters [r11] and [r38] do not come into play. The digital input in parameter [A25] (5=Pressure switch water "Default setting") is used directly for evaluation. Page 101 105204 WTS-300 V2.0 - 11.01.2019...
Page 102: Level Control Setting
Fine adjustment in the extended washing parameters (Only for the service technician) The level input sensitivity can be further adjusted manually using parameters [r30] for level 1 and [r31] for level 2. Page 102 105204 WTS-300 V2.0 - 11.01.2019...
Page 103: Detergent Injection Position
, [r45 = 1] - per cleaning cycle 1 alkaline wash / 1 acidic wash , [r45 = 0] - an acidic clean follows after x alkaline cleaning cycles. Set “x” in [r21]. Look also section 6.2 Page 103 105204 WTS-300 V2.0 - 11.01.2019...
Page 104: Setting Of A Break In The Cleaning Programme
Trigger test errors from the OFF mode by pressing buttons OFF and SET simulta- neously for four seconds Check if the required reaction has taken place Reset the error triggered with the reset button RESET Page 104 105204 WTS-300 V2.0 - 11.01.2019...
Page 105: Activation Delay Tank Monitor
Activation Delay is activated by the start of the WTS-300 and suppresses all errors from F1 to F38 for a pre-set time (with the exception of F30). After expiration of the set time, the tank monitor is set to the basic condition and then activated.
Page 106: Procedure Following Power Failure
If in cooling mode a power outage lasts longer than the time set in [H20], fault code (F6) flashes, followed by an alarm “DO NOT LOAD”. Installation: Only the suitable original WELBA-power pack may be connected. ! Connect the power pack to terminals 21 + 22 (observe polarity) WELBA...
Page 107: Agitator Monitoring Module (Optional)
The module has to be configurated in parameter [A71] For the correct installation please pay attention to the supplied documentation of the respective module. Page 107 105204 WTS-300 V2.0 - 11.01.2019...
Page 108: Tank Overflow Protection
(see section 9.26) Either a pressure sensor for the filling level or the cooling agent can be connected to the analogue input of the WTS-300. See graphic. When using the pressure sensor „filling level“, it has to be set as follows:...
Page 109: Tanks With Various Cooling Levels
9.26 Anti-freezing protection by means of low pressure monitoring It is possible to set up a “freeze protection” with the WTS-300. For this purpose a pres- sure sensor for the low pressure monitoring of the compressor is connected at the analogue input and the control is appropriately parameterized.
Page 110: General Measures When Using Electronic Control Systems
(contactors, motors, solenoid valves, etc.) unsatisfactory routing of wires, too small cross-sections loose contacts rhythmically changing power stages (power converters) power breakers high-frequency generators Page 110 105204 WTS-300 V2.0 - 11.01.2019...
Page 111 RC combination even when the switching contact is open. This current may be enough to mean that a downstream contactor is not de-energised and a closed protective contact does not reopen. Page 111 105204 WTS-300 V2.0 - 11.01.2019...
Page 112 The suggestions made represent only a few of the possible ways of protecting a microprocessor-controlled regulator system from interference. The suggested measures have the advantage that they will increase the lifetime of the devices as lower induction voltages (reduced spark formation) will also reduce contact burn. Page 112 105204 WTS-300 V2.0 - 11.01.2019...

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Wts-300 g1

WELBA WTS-300 Installation And Operating Instructions Manual

1 Introduction

2 Safety

3 Installation

4 Electrical Connection

5 Operation

6 Cleaning

7 Tank Monitor and General Fault Handling

8 Setting of Parameters

9 Other Information

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