RN20/VL2 A/S Wodschow & Co. OPERATING INSTRUCTIONS
Contents
1. RNANA A AR A niles tun 15 GENERAL In case of complaints please contact your supplier We offer a guarantee period of two years from the date of invoice The guarantee does not cover faults resulting from faulty operation overloading and lacking observance of directions of maintenance It should be checked that all loose parts are delivered with the mixer such as bowl tools and intermediate pieces To the attachment drive should only be connected attach ments produced by A S WODSCHOW amp CO SAFETY The constant noise level of the workplace of the operator is lower than 70 dB A The mixer is designed for manufacture of products which do not during processing cause reactions or emit substances which may be detrimental to the user Putting your fingers in the bowl while the mixer is running may cause injuries INSTALLATION OF NEW MIXER Installation and securing If the mixer is placed on a table it must always be bolted into the table top The bolts fixing the mixer on the pal let can be used for this no nuts are needed as there are threads in the bottom plate of the mixer see page 6 If the mixer is placed ona bench stand it can be placed direct on the floor Foundation bolts in the floor are recommended Intermediate pieces can be inserted under the mixer s feet if the floor is not completely even Connection to power Before the mixer is con2. y a oJU 00 91 INZE P6L 0TNU tu 39 oo lu J9 g y msow L 2 i dd 4AQGJOW Ul YIJIMSOUMSY Ba YIJNMSOULSY Himoa 4 d i aBueio pk 20 LL V6L OTNU yno Ajayes H yoelq y ZO A V6L OCNY aniq yoelq y used LO IN9L H6L OZTNU MPK i mol aA mo a 0 431 W972 V6L OCNY jusel6 p juselb U BIE aeq e JOJON SYM 7 Ki E una umolq LO A31 INGL Y6L 0TNU LO A31 INGZ P6L OZNY PUS lt OW Bi A34 3 pusou Be 2ss 00 Add W6Z Y6L OZNY eee 00 IN6L V6L OTNU hen 5 00 284 INGE Y6L 0ZNU HEETE s57 9 9 s57 mojjeA 7 LT I YUM BPUM TT opm aniq Z aniq Z Dom y eq pal pal 15 ELECTRICAL DIAGRAMMES n i 2 E S 5 o amp 2 S gt a 2 On N mr N c p Q E o 5 a al a gt r NA g 9 g 3 S
3. o 2 S 3 O S a D gt m T a a Sage 3 mm 22 0 SS 82 yoeig So 3 5 v 5 a J2 2359 vo 32 3 3 8 eng ng gt gt m oo oO oa N N aA SEO NO la ig yoerlg 5 5 z gt 9 F 3 EN 2 3 2 D gt 2 gt dr 2 umolg umolg o gt UMOJ UMOJ FEET S g 8 9 36 pay E N N NO poy Ped 26ue10 26ue10 26ue1Q0 aBuelo 555 8 ont On 8 a x v o S 5 B gt ao f 5 5 2 ON 5 c z 5 2 a L 3 9 a oj S a x The mixer is to be connected to power via a plug The plug must be dimensioned for min 16 A pi 230 400V IP44 ont an When connecting c S o 5 L of 5 a L 5 3 9 a SO gt S a x 1 phase with O earth use 3 pole plug 2 phases earth use 3 pole plug 3 phases earth use 4 pole plug 3 phases with 0 earth use 5 pole plug Control panel 16
4. pushing II or by opening the safety guard The mixer is restarted by pushing II Varimixer BEAR The mixer is connected to power and is ready for start flashing of the green diode at will show that It is possible to set a start speed by pushing one of the fixed speeds or gt before is pushed When is pushed the mixer will start in minimum speed Operating time is stated by pushing 2 or 5 A program is run by first pushing and thereafter the wanted number e g 4 for program No 1 Varimixer BEAR Il has been pushed yellow diode at p is flashing The mixer is started by pushing II The timer will start again and the speed is running up to the chosen speed If is pushed the timer is reset and the mixer will not start but is ready for start green diode at will flash see picture 2 OPERATION OF THE MIXER Time up Text field timer Time down Pause REMIX function Speed down Start Stop Speed up Before starting the mixer Mount the required tool in the bayonet shaft Place the bowl in the bowl arms and raise it to its working position by means of the handle for bowl lift Close the safety guard The mixer is ready for start Start the mixer Push to start the mixer Push to increase the speed Push to reduce the speed Or push 41 2 3 or 4 to choose one of the fixed speeds The speed indicator below the fields 1 to 4 shows the mixing speed of the tool Four fi
5. screws 10 The toothed belt is exchanged in the following way a Remove the lid of the mixer 1 and the plastic cover 2 b Loosen the four nuts 12 holding the motor base 13 By pushing the base towards the front of the mixer the belt is slackened and can be lifted off the motor pulley 14 and the planetary head pulley 15 c The new toothed belt is mounted by pushing it downwards over the two pulleys d The toothed belt is tightened by pushing the motor base towards the back of the mixer Use a big screwdriver or the like to hold the base in its place while the nuts are mounted and tightened 14 The pulleys are taken off in the following way a Remove the lid of the mixer 1 the plastic cover 2 and the toothed belt 11 b Screw the pointed screws 16 out of the pulley The pulley can now be lifted off the locking ring c The locking rings are loosened from the shafts by screwing one of the pointed screws approx one turn down in the middle centre hole The locking ring can be removed 2 The motor be taken out the following way a The power must be switched off or the connecting cable dismantled from the power supply b Take off the lid of the mixer 1 the plastic cover 2 the toothed belt 11 and the motor pulley 14 d Remove the four nuts 12 and cut the strip holding the cable bundle on the back of the motor base The mo tor base 13 with motor 17 can now be lifted out ab
6. OPERATING INSTRUCTIONS RN20 VL2 A S Wodschow amp Co Industrisvinget 6 Phone 45 43 44 22 88 DK 2605 Br ndby Telefax 45 43 43 12 80 www bearvarimixer com Denmark info wodschow dk CONTENTS GENERALS 2 SV EE EE NE ee Nr 2 INSTALLATION OF NEW MIXER eaunnnnnunnnnnnnnnnnnnnnunnnnnnnnnnunnnnunnnnnnnnnnunnnnunnnnnnnnnnnnnnnnnnnnnunnnnunnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 2 VL2 CONTROL PANEL SURVEY OF VARIOUS OPERATING SITUATIONS unannunnnnnnnnnnunnnnnnnnnnunnnnnnnnnnnnnnnunnnnnnnnnnunnnnnnnnnnnnnnnunan 3 OPERATION OF THE MIXER hamna riage veacuavies ovine unwiteuvcreuveresncigebvnsenwvied 4 THE REMIX FUNCTION ba dude k dd bud 5 CHANGE OF FIXED SPEEDS auuunnnnnnnunnnnnnnunnnnnnnunnnnnnnnnnnnnnnnnunnnnnnnnnnnnnnunnnnnnnnnnnnnnnnnnennnnnnnennnnnnunnnnnnnuunnnnnnunnnnnnnunnnnnnnunen 5 RESET OF TIMER a a A E A E 5 Wee 5 PROCEDURE IN CASE OF OVERLOADS uunnnnnnunnnnnnnnunnnnnnnunnnnnnnnnnnnnnnnnennnnnnunnnnnnnnnnnnnnnunnnnnnnnnnennnnnnunnnnnnnunnnnnnnunnnnnnnununennnn 5 RECOMMENDED MAXIMUM SPEEDS uannunnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunn
7. bjects as e g the edge of the bowl This will make the life of the tool shorter due to increasing deformity For production of mashed potatoes the special wing whip should be used not the standard whip CLEANING The mixer should be cleaned daily or after use The mixer should be cleaned with a soft cloth and clean water Sulpho nated soaps should be used with caution as they destroy the mixer s lubricants A Never use high pressure cleaning for the mixer Bowls and tools of aluminium must not be washed with strong alkaline detergents pH not bigger than 9 0 The soap suppliers can recommend the correct type of soap MAINTENANCE AND LUBRICATION When the mixer is delivered it has been greased for life and will need no further lubrication If the planetary head is repaired the toothed wheel and the toothed wheel rim shall be greased with Castrol Molub Alloy 936SF Heavy or Castrol Grippa 355 the needle bearings of the planetary head must not be greased with this type of grease If the mixer is provided with attachment drive the gear for attachment drive must be greased with ESSO Fibrax EP 370 Do not use any another type of grease than the one stated here TTACHMENT DRIVE The mixer can be equipped with attachment drive for mounting of extra accessories such as meat mincer or vegetable cutter For further information regarding mounting and use of extra accessories please see the ma
8. g the front edge slightly with a plastic hammer turning the planetary head 180 and hitting again slightly on the front edge f If only the bottom part of the planetary head is to be repaired follow the instructions from to e Hereafter the planetary head can be disassembled by taking out the 3 bolts 34 g By loosening and removing the 4 bolts 35 the planetary head can be lowered Mounting of the planetary head to be in reverse order 13 Micro switch for bowl lift can be exchanged in the following way a b c d Take off the lid of the mixer 1 and the plastic cover 2 Remove the base for motor 13 with the motor 17 Access is now free to the bowl lift micro 35 which can be exchanged by removing the two wires and loosening the screws 36 The new micro switch is mounted by following the instructions in reverse order No adjustment is needed 39 Micro switch for safety guard can be exchanged in the following way a b c d Remove the lid of the mixer 1 and the operating panel 7 Screw out the pointed screw 37 and the cam disc 38 can be removed The fitting with micro switch 39 can now be remo ved and the micro can be exchanged by removing the screws 40 It might be necessary to loosen the screws 41 before the fitting can be taken out The new micro switch is to be screwed on to the fitting and the fitting to be placed in the machine It is
9. he bowl Activate the emergency stop and release it again Use lower speed on start up again If the error code has not disappeared the frequency converter is defective See Service instructions page 10 for access to the frequency converter Too high temperature in motor Switch off the mixer and let it cool down Reduce the quantity of ingredients in the bowl Use lower speed on start up again Errors that do not cause an error code in the display The mixer does not start when is pushed but the timer is counting as normal There is no error code in the display Solution The frequency converter is defective and must be exchanged See Service Instructions page 10 for access to the frequency converter The mixer does not start when is pushed There is no error code in the display Solution The mixer is totally dead no light in the control panel Solution Activate emergency stop and release it again Now two different codes should be shown in the display The first code is a small square in top of the first cipher of the display followed by a version code this is the software ver sion of the control panel The next code is a small square in bottom of the first cipher of the display followed by a version code this is the software version of the frequency converter If no codes are shown or if only the first code is shown the error can derive from either a defective communication cable between the control
10. important that the two screws 41 are adjusted so that the fitting is horizontal 14 CABLING DIAGRAM dojs 104 2 dojs 10 2 Z 5 25 ane yoelq y f ft ft f y elq y n q anid 3 E ang ang aniq e 22 eg ang 2 H H anig Z ang z 4921 YORIG on yoelq H H yoeiq 1 00 431 IN8E Y6L OTNU doys 10 2 ZO 1 NS VEL OCNY paenb Ajayes 2 abuelO ji Jenb Ajajye 104 5 H pai p jeJES 9 Ajayes H
11. mands are stored and when a recipe is finished and is pushed it is possible to store the entire recipe under a program number e There are four program numbers program cannot be deleted but can be replaced programs are not deleted in case of no power How to store a program First push e Run the entire recipe including pauses and changes of speed e Push e Store the program as program No 1 by pushing both and 4 continuously until the total length of the program is shown in the timer field The timer field will thereafter flash P1 three times How to run a program e First a short push on and then on 4 Now P1 appears in the timer field and immediately thereafter the total length of the program will be shown The program is run by pushing e If the speed or the time is changed or 1 is pushed when running a program the program will be left and the mixer must be run manually e Itis possible to open the safety guard while running a program When the safety guard is closed the program can be resumed by pushing AP e Ifthe program is containing a pause the mixer will stop and at the same time an acoustic signal is heard When the operator wants to restart the mixer push II and the program will be resumed CHANGE OF FIXED SPEEDS For the fields 2 and 3 itis possible to change the speed for future mixing jobs Push or to adjust the speed up or do
12. nected to power it should be checked that the voltage and frequency printed on the machine label is correct in relation to the place of installation The machine label is placed at the top right side of the mixer The mixer must be connected No earth If not it will cause missing function of EMC filter as well as risk of damaging the frequency converter The mixer must only be connected to single phase power with earth e Atwo pin plug with earth is to be used Alternatively two conductors and earth from a 3 phase power supply The mixer must be protected by a differential switch The mixer is protected by a 10A fuse The fuse is built into the frequency converter which is placed in the bot tom of the mixer VL2 CONTROL PANEL SURVEY OF VARIOUS OPERATING SITUATIONS The following pictures show various operating situations and corresponding explanation Varimixer BEAR Emergency stop is activated there is no light in the display If the red diode at is flashing the mixer has stopped because the safety circuit has been interrupted either because the bowl arms have been lowered or the safety guard has been opened DU A s 1 Varier The mixer is running and a speed has been chosen four diodes on the speed indicator are alight The speed can be changed by pushing one of the buttons for the four fixed speeds or or gt The mixer can be stopped without reset of the timer by
13. nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnunnnnnnnunnnnnnnunnnnnnnnnunennnn 5 CONSTRUCTION OF THE MIXER aannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnunnnnnnnnnnunnnnunnnnnunnnnunnnnnnnnnnunnnnunnnnnunnnnnnnnnunnnnnunnnnunnnnnnnnnnne 6 THE MAXIMUM CAPACITY OF THE MIXER uunnnnnnnunnnnnnnunnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnunnnnnnnunnnnnnnunnnnnnnunnnnnnnunnnnnnnnnnnnnnnnnunen 6 CORRECT USE OF TOOLS EE ME ME ke ER 7 7 MAINTENANCE AND LUBRICATION annununnnnnnuunnnnnnnunnnnnnnunnnnnnnnunnnnnnnunnnnnnnunnnnnnnunnnnnnnunnnnnnnnnnnnnnnnnunnnnnnnunnnnnnnunnnnnnnununennnn 7 ATTACHMENT DRIVE 7 RECOMMENDED MAX SPEEDS FOR ATTACHMENT DRIVE uvnnnnnnunnnnnnnunnnnnnnunnnnnnnunnnnnnnnnnnnnnnnnunnnnnnnuennnnnnuennnnnnunnnnnnnunnnnnnnnn 7 DIMENSION SKETCHES Sesectavectesedt 7 VL 2 CONTROL ERROR CODES AND POSSIBLE SOLUTIONS anunsnnunnnnunnnnnunnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnnnnnnnnnunnnnnnnnnnunan 8 TEST PROGRAMS AE 9 SERVICE INSTRUCTIONS fississusssvusscnunssaseiuanvesstenubssedusevedssevuuaaveiuneniaseulushwenssdeuianyobuvanuavensuseweaseduusvavebasenuavantivauenteebais 10 CABLING DIAGRAM sai uincdssclaavcassacesssieacadsntasistastwastdvescsinddeasudanducaavwutbauedebidusuasetasdcbasswanadssbavanuavunatiaevsdcnnidesniaarpas 14 ELECTRICAL AANA ANNAN
14. nual following the accessory The mixer must be disconnected while the ac cessory is mounted in the attachment drive RECOMMENDED MAX SPEEDS FOR ATTACHMENT DRIVE Recommended max speeds for attachment drive fac tory setting DIMENSION SKETCHES Dimension sketch for RN20 on floor stand Dimension sketch for RN20 table model VL 2 CONTROL ERROR CODES AND POSSIBLE SOLUTIONS Error codes and possible solutions The VL2 control will in case of certain errors show an error code in the display ERR I Solution ERR Solution ERRI Solution ERRY Solution ERRS Solution Too high temperature in the frequency converter Switch off the mixer and let it cool down Wrong voltage of power supply Compare the voltage indicated on the machine label with the power supply The motor has been constantly overloaded for a long period of time The load has been between 100 150 of maximum load The overload is typically found in case of mixing whipping tasks with constant load Switch off the mixer and reduce the quantity of ingredients in the bowl Use lower speed on start up again The motor has been overloaded for a short period of time the load has exceeded 150 of maximum load The overload is typically found in case of kneading tasks with variable load Switch off the mixer and reduce the quantity of ingredients in t
15. ortant that the order is kept The cipher 1 is shown in the display until the safety guard is opened Open and close the safety guard The display shall now change to 2 If the display does not change to 2 the micro switch at the safety guard is defective Raise and lower the bowl again The display shall now show 3 If the display does not change to 3 the micro switch at the bowl lift is defective Conclude the test by pushing emergency stop and release it again The display shall now show version codes for control panel and frequency converter resp as earlier mentioned under VL2 control error codes and possible solutions error ERRS 10 SERVICE INSTRUCTIONS Before a possible repair or adjustment the power must be switched off by dismantling the connection cable from the power supply Cable bundle stuck to motor 12 18 base with strips Lf ON Dy Cable bundle 11 The lid of the mixer shall be removed and the plastic cover 2 shall be loosened by removing the 2 screws 3 The control panel is removed by first removing the plastic ring 7 and the finger screw on the attachment drive and then loosening the 2 screws 5 The attachment drive is taken out by removing the finger screw and removing the plastic ring 7 the control panel 4 and the 4 bolts 8 The display print is removed by removing the 2
16. ove the mixer e Motor base and motor can be separated by removing the four screws 18 The legs of the mixer are taken off by removing the screws 20 The frequency converter is taken out in the following way a Remove the lid of the mixer 1 b Cutthe strips holding the cable bundle to the motor base 13 c Remove the screw 22 in the bottom of the mixer d The frequency converter including the mounting plate 23 can now be tilted lifted out of the bottom of the mixer e Dismantle all plugs for the frequency converter f The cover box 24 above the frequency converter 21 can be removed by loosening the screws 25 26 The fuse is exchanged by taking out the frequency converter including mounting plate 23 and then removing the cover box 24 27 The bottom plate is taken off by removing the legs of the mixer 19 and the 2 nuts 28 12 29 The planetary head is taken off in the following way a Take off the lid of the mixer 1 control panel 4 attachment drive 6 and toothed belt 11 b Take out the screws 30 c The plastic ring 31 can be taken off by hitting it slightly against the front edge and thereafter pressing a screw driver in between the plastic ring and the metal plate at the top of the plastic ring d Take off the rubber packing 32 e The stainless steel head cap 33 can now be taken off by hittin
17. panel and the frequency converter or a defective frequency converter Check the connection to power supply if connection and power supply are OK the error is either a defective communication cable between the control panel and the frequency converter or a defective fuse in the frequency converter See Service Instructions page 10 for access to the frequency converter TEST PROGRAMS To enter the test mode of the mixer do as follows Raise the bowl and close the safety guard push emergency stop Hold and and release the emergency stop at the same time Now go through four test programs Test program 1 Test of fields OBS The fields must be activated in the following order aly aly Briefly push the following fields Il ee a 4 3 2 1 amp gt The mixer will now automatically run the next three test programs Test program 2 Test of light diodes For the first 20 seconds the cipher 2 will flash in the display the remix memory will be erased Then the light diodes in the speed indicator will light up one by one while the other light diodes of the control panel are on Test program 3 Test of current measurement circuit in the frequency converter The motor starts and runs for approx 20 seconds After the 20 seconds a text is shown in the display this text will vary and can only be used for testing the function Test program 4 Test of micro switches in safety circuit OBS It is imp
18. wn If required to store the adjusted speed push 2 or 3 until two beeps are heard and the diodes of the speed indicator are flash ing The adjusted speed has now been stored in the memory To return to the factory settings for button 2 and 3 push 4 and 4 simultaneously until a beep is heard RESET OF TIMER The timer can be reset by simultaneously pushing ve and 342 If the timer is reset while the mixer is running the mixer will stop 1 vay OVERLOAD Do not overload the mixer Sticky and heavy doughs may reduce the capacity of the bowl by 75 The capacity is further reduced if the speed of the mixing tool is increased beyond the re commended values or if a wrong mixing tool is used Large lumps of fat or cooled ingredients must be cut into small parts before they are placed Nr the bowl Overload over a long period will cause that the thermal overload relay will switch off the mixer Follow the de scription under Procedure in case of overload PROCEDURE IN CASE OF OVERLOAD Push emergency stop Release emergency stop Start the mixer by pushing RECOMMENDED MAXIMUM SPEEDS Recommended maximum speeds factory setting CONSTRUCTION OF THE MIXER Attachment drive Emergency stop O Machine label Arrow indicating the i rotation direction of the planetary head Toothed belt Planetar
19. xed speeds For quick choice of speed use the fields 1 to 4 Field 4 corresponds lowest speed aprox 98 RPM Field 2 corresponds aprox 172 RPM Field 38 corresponds aprox 267 RPM Field 4 corresponds maximum speed aprox 365 RPM Fixed speeds Speed indicator Emergency stop Is activated by pushing red button is deactivated by turning red button counter clockwise It is possible to change the fixed speeds see the paragraph Change of fixed speeds Indication of operation time Before starting the mixer an operation time for the mixer can be chosen by pushing LG or BOG The operating time will be shown in minutes and seconds in the timer field between 3 and 34 The maximum operating time is 60 minutes Inspection of the ingredients during operation If itis wished to stop the mixer without reducing operation time and speed push 8 The mixer will reduce speed and then stop the operation time will also stop It is now possible to open the safety guard to check the ingredients Close the safety guard and push 9 and the mixer will start and will increase the speed to the speed chosen before pushing The operating time will also be continued If the bowl is lowered while the mixer is stopped the operating time is reset and must be pushed to restart the mixer THe Remix FUNCTION The special Remix function is a shortcut to programming of recipes While the mixer is operated all com
20. y head Motor Bayonet socket Bowl lift Bottom plate Bowl lift arms Screws for fixing on table Nut retaining the bottom plate THE MAXIMUM CAPACITY OF THE MIXER RN20 VL2 AR Absorption Ratio AR Dough with AR 60 10 kgs Liquid in of solids a given AR AR 50 6 kgs q Example A basic recipe contains 1 kg of solids and 0 4 kg of AR 40 4 5 kgs liquid This givesAR 24kas x100 40 1 kgs RN20 VL2 If for instance it is required to use the maximum capacity of the mixer the calculated AR 40 is used for determining the Egg white amount of solids and liquid in the dough 1L 30 eggs If a 20 L mixer is used and a dough with AR 40 is to be Whipped cream Mayonnaise kneaded the maximum capacity is 4 5 kgs Now the weight Other tL oil of solids in this dough is calculated products Mashed potatoes 10 kgs Solids Max capacity x100 _ 4 5 kgs x 100 35 kgs ee AR 100 40 100 Dough 50 Weight of liquid 4 5kgs 3 2kgs 1 3 kgs 2L 9L 9L CORRECT USE OF TOOLS Recommended applications for tools Cream Cake dough Bread dough Egg whites Butter cream Dark bread Mayonnaise Waffle dough and the like and the like Minced meat and the like Whips should not be struck against hard o
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