Table of Contents
Advertisement
Quick Links
Milk temperature regulator
MRF-M2
Installation and operating instructions
for plant engineering companies,
installers and service engineers
Firmware V0.7
106082 – MRF-M2 -E - V0.7 - 23.04.2021
1. Introduction
Measuring - Controlling - Regulating
All from the same source
Programmable via
configuration software
WELBA „KONSOFT"
Page 1
Advertisement
Table of Contents
Related Manuals for WELBA MRF-M2
Summary of Contents for WELBA MRF-M2
- Page 1 Measuring - Controlling - Regulating All from the same source Milk temperature regulator MRF-M2 Installation and operating instructions for plant engineering companies, installers and service engineers Firmware V0.7 Programmable via configuration software WELBA „KONSOFT" 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 1...
-
Page 2: Table Of Contents
5.1.3 Continuous stirring mode ......................17 The configuration software KONSOFT..................18 Operation in levels ........................19 Operation of working level ......................20 5.4.1 Button functions ........................... 20 5.4.2 Meaning of the LED‘s ........................21 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 2... - Page 3 General measures when using electronic control systems ............40 Publisher: Welba GmbH Fon: +49 (0)2638 / 9320-0 Electronic Control Engineering Fax: +49 (0)2638 / 9320-20 Gewerbepark Siebenmorgen 6 info@welba.de D-53547 Breitscheid www.welba.de 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 3...
-
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 MRF-M2 milk temperature regulator. This manual con- tains all necessary suggestions, information, recommendations and advice for the safe and proper installation and commissioning of the milk temperature regulator. -
Page 5: Limitation Of Liability
Technical modifications 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 con- tract are applicable. We reserve the right to make technical changes in the context of improving the prop- erties of use and further developments. -
Page 6: Model / Type Plate
1. Introduction 1.4 Model / type plate These instructions apply to all controllers in the series MRF-M2. The type designation and the exact connection diagram for your controller can be found on the controller as a connection sticker. Example: Controller type designation: 1.5 Items supplied... -
Page 7: Disposal
The use of these cleaners and cleaning methods may lead to damages! 1.8 Dimensions Front panel cutout 87 x 56 mm 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 7... -
Page 8: Technical Data Regulator
- Storage temperature -20° .. +70°C - max. humidity 75% (no dew) Pollution degree Electrically conductive pollution must not enter the housing interior * = freely adjustable Technical data subject to change. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 8... -
Page 9: Sensor Dimensions Und Technical Data Sensor
Measurement range -10 .. 70° C Cable length standard 2 metres In contrast to our standard sensors, we also offer sensors with other sleeve shapes and diameters or other cable lengths. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 9... -
Page 10: Safety
“Safety”, account must be taken of local regulations. IMPORTANT NOTE The parameter settings of the MRF-M2 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: Intended Use
MFR-M2. The regulator is fitted with a resistance temperature sensor. The milk temperature regulator MRF-M2 is not suitable for use in explosive atmos- pheres. Danger of explosion. Use only outside areas subject to explosive atmos- pheres. -
Page 12: Wiring, Screening, Earthing
The connection of external voltages to the digital inputs can lead to the destruc- tion of the control. Caution: All cables to the digital inputs must be shielded and kept as short as possible. EMC. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 12... -
Page 13: Installation
Attach the holding frame in the rear position as shown by the picture. Fasten the housing by using the screws provided. Front panel cut-out 87 x 56 mm 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 13... -
Page 14: Fitting The Sensor
(or if a sensor other than the one supplied is to be fitted), the "actual value correction" parameter must be adjusted accordingly. See section 7.6 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 14... -
Page 15: Electrical Connection
Switch on the regulator and set the parameters (possibly using the optional WELBA-KONSOFT configuration software). Plug the pre-cabled plug-in terminals of the components into the regulator. Close the switchbox. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 15... -
Page 16: Wiring / Circuit Diagram
Contactors are to be fitted with an RC protective circuit. See section 7.10 4.3.1 Wiring the digital input Terminals 8 and 9 may only be connected to a potential-free normally open contact. WARNING ATTENTION: do not apply any external voltage! 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 16... -
Page 17: Operating
OFF button. If [C25] is set to '0', the agitator will run continuously, but can be switched off at any time using the OFF button. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 17... -
Page 18: The Configuration Software Konsoft
NOTICE 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 19: Operation In Levels
5.3 Operation in levels The working level is used for operation and control in everyday operation. The MRF-M2 is parameterized in 4 different parameter levels. The subordinate parameter levels are only entered after entering a code in order to NOTICE avoid inadvertent adjustment of the parameters. -
Page 20: Operation Of Working Level
= press for 3 sec.: " Intermediate stirring LONG ” See also section 7.2 - scroll up the parameter list parameter setting = - increase set value 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 20... -
Page 21: Meaning Of The Led's
Target temperature "T1" is selected LED „T2“ LED permanently on = Target temperature "T2" is selected Target temperature "T2" is selected and switches LED flashes = back to "T1" after time [P81] 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 21... -
Page 22: Explanation Of The Operating Modes
If the milk temperature rises again, and exceeds the selected target temperature by the hysteresis value [c10 or c11], the compressor and agitator are switched on again automatically. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 22... -
Page 23: Continuous Stirring 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. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 23... -
Page 24: Setting Of Parameters
6. Setting of parameters 6. Setting of parameters 6.1 Change and save parameter values The MRF-M2 is configured in 4 different parameter levels. To change parameters in one of the lower levels, enter the corresponding 'level code'. Working level Code 0E5... -
Page 25: Display And Change Parameter Value
The regulator switches to OFF mode. Return without saving the values: NOTICE If no button is pressed for 60 seconds: The regulator automatically returns to the OFF mode. All changes are lost. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 25... -
Page 26: Level "Cooling Parameters 1" (C-Parameter)
‚continuous stirring‘ see section 5.5.3 Setting of maximum continuous stirring period. 0: indefinite stirring (to end, the OFF button must be pressed) 1..999: max. stirring period in minutes 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 26... - Page 27 Button lock 0 .. 1 The adjustment of the target temperatures in the working level can be blocked by setting the but- ton lock. 0: Buttons not locked 1: Buttons locked. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 27...
-
Page 28: Level "Cooling Parameters 2" (P Parameters)
Default Agitator settings Function intermediate stirring 0 .. 2 see also section 7.2 0: deactivated 1: intermediate stirring (short / long) by button 2: manual intermediate stirring ON / OFF 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 28... - Page 29 When a compressor is switched on, feedback is expected at the digi- tal input after 60 seconds at the latest. If this feedback does not come, fault F53 is triggered. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 29...
- Page 30 Monitoring time from the start of cooling 0 .. 600 min. 0: no time limit 1..600: minutes after starting the cooling, the low pressure monitoring switches itself off until the next cooling activation. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 30...
-
Page 31: Level "Hardware Configuration" (A Parameters)
(Switch off the agitator when the lid is on) see section 7.5 PC interface setting RS485 Range Def. A95 Baud setting 1 .. 3 1: 9600 2: 19200 3: 38400 A96 Device address 1 .. 4 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 31... -
Page 32: Level "I / O Test Parameters" (O. Parameters)
Press the SET key again: The display shows the current parame- ter name again. Range Def. o.21 Test digital input 0 .. 1 - - - 0: Input not connected 1: Input wired (bridged) 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 32... -
Page 33: Other Information
Exceeding the measuring range The sensor fitted can only measure temperatures between -20˚ and +70°C. Lid open in cooling mode The lid of the milk cooling vat was opened in cooling mode. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 33... -
Page 34: Function "Intermediate Agitating" In Cooling Mode [P22]
7. Other information 7.2 Function “intermediate agitating” in cooling mode [P22] The MRF-M2 has a function that enables manual ‘intermediate agitating’ in cooling mode during the agitator break. This can be done is different ways. Regardless of the chosen option the corresponding LED always indicates when the agitator is operating. -
Page 35: Compressor Fault Monitoring [P72]
When the compressor is switched on, feedback information is expected at the digital NOTICE input of the controller after 60 seconds at the latest. If this feedback is not received, error "F53" is triggered. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 35... -
Page 36: Milk Cooling Tank Lid Open In Cooling Mode
Hold down the up and down arrow buttons simultaneously: The settings are stored. Proceed with the setting for sensor 2 (if present) in the same way. In this case pa- rameters [c92 and c93] must be set. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 36... -
Page 37: Topic "Protection Against Icing
7. Other information 7.7 Topic “Protection against icing“ The MRF-M2 basically offers three different options for preventing small amounts of milk from freezing in the milk cooling tub: Cooling start delay (see section 7.7.1) Anti-icing protection by means of low pressure monitoring (see section 7.7.2) Anti-icing protection through external compressor shutdown (see section 7.7.2) -
Page 38: Anti-Icing Protection By Switching Off The Compressor With A Robot
Via [P89] can be set whether the low pressure monitoring is to be permanent or temporally limited. NOTICE The advantage of permanent monitoring is that even the loss of cooling agent is detected! 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 38... -
Page 39: Procedure Following Power Failure
SMS, alarm and remote maintenance modem ESGSM for remote configuration and sending of SMS error messages EMAIL, alarm and remote maintenance modem ESIPM for remote configuration and sending of email error messages 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 39... -
Page 40: General Measures When Using Electronic Control Systems
switching off inductive loads (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 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 40... - Page 41 This current may be enough to mean that a downstream contactor is not de-energised and a closed protec- tive contact does not reopen. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 41...
- Page 42 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. 106082 – MRF-M2 -E - V0.7 - 23.04.2021 Page 42...
Need help?
Do you have a question about the MRF-M2 and is the answer not in the manual?
Questions and answers