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Manual dryer controller HW100 SW100 MR100

1. 10 seconds 16 Drum run time If the machine is equipped with a reversible drum motor and program parameter 13 is set to reversing this parameter is the time the drum runs in one direction After running for the time defined in parameter 16 the drum will stop for the time defined in parameter 15 and then start again in the other direction If no reversible drum is installed or the drum direction is not set to reverse this parameter will not be visible 19 Anti crease funct This parameter indicates if the anti crease function is enabled in this program If a program is finished the drum will always stop for 2 minutes If anti crease is enabled after these 2 minutes the drum will start to run again This will continue until the door is opened During anti crease the blower will not be on This means that if the drum motor is connected together with the blower motor the anti crease function cannot work 22 Max temp rise The maximum temperature rise rate in degrees per minute during a drying cycle During drying the controller will adjust the temperature control function so that the temperature will not rise more than Manual M720 Dryer controller Page 28 of 42 HW 1 00 SW 1 00 Manual revision 1 00 this adjusted maximum If this value is set to 0 no maximum rise is active and the controller will try to reach goal temperature is soon as possible 23 Max temp fall The maximum temperature fall rate in degrees per minute during
2. If so the cycle is started and step 3 is activated see chapter 5 3 If one of the inputs is not in the correct state the lower line in the display will show an alarm text and the numeric display above the graphical display will start blinking with the alarm number A full explanation of the available alarms and their cause can be found in the chapter 7 5 3 Program running In this step the program cycle is running A program cycle can be a drying step a cool down step or both When running the 2 line in the overview screen will show the current status see chapter 4 In case an alarm occurs the machine will be stopped by the controller and the program cycle will be paused The same will happen if the STOP button is pushed When cause of the alarm has been corrected the alarm can be reset with the START button After that Waiting for cycle restart will be displayed The same will happen if the STOP button is pushed once If the message Waiting for cycle restart is displayed the cycle can be restarted with the START button and the pause situation is cancelled If in this case the STOP button is pushed the complete program will be cancelled and the step described in chapter 5 1 is activated When the drying step and the cool down step are finished the step described in chapter 5 4 is activated 5 4 Program completed This step is activated when a program cycle is finished When the program cycle is completed the b
3. all battery backed up memory will be lost The battery capacity is enough to retain all data for 1 year Replacing the battery should be done every year If the battery has been empty the controller will show alarm 19 when starting up see also chapter 7 This means that if alarm 19 is shown on the display the battery is empty already If the battery is empty the following data will be lost Counters per program chapter 6 3 1 Counters per day chapter 6 3 2 Counters in total chapter 6 3 3 Time and date chapter 6 6 1 Setting of time and date is especially important for the counters per day chapter 6 3 2 and the alarm history chapter 6 7 Last used program After starting up with an empty battery the controller will always start up in program 1 Cycle step If the machine was running in a drying cycle or cool down cycle and the controller is switched off the controller will start up again at the same moment in the cycle This cannot be done anymore in case the battery is empty and the controller will start up at the beginning of a new cycle Delayed start If a delayed start was adjusted and the controller has been switched off the time until the delayed start is stored Delayed start will be lost when the battery is empty Manual M720 Dryer controller Page 13 of 42 HW 1 00 SW 1 00 Manual revision 1 00 3 Display and buttons on the controller The layout of the control panel is 10 9 8 7 In the
4. the enter button must be pushed to confirm the choice This is the same in case a parameter value is adjusted When a new value is entered this value has to be confirmed with the enter button otherwise the change in value will not be stored The clear button is used to cancel an entered value For example when a new parameter value has been entered but the value is not ok this value has to be cancelled If the ENTER button is pushed in combination with the SHIFT button the old parameter value is restored 10 Shift button This button has to be used to access the secondary function of a button When a button is pushed without the shift button it will have its normal function indicated in white on the button If a button is pushed in combination with the shift button the button will have its secondary function indicated on the button with the same colour as the shift button To use the secondary function of a button first push the shift button then push the button itself while holding the shift button Release the button and after that release the shift button again 11 Numeric keypad These buttons can be used to enter a numeric value For example in the program selection screen a program number can be entered with these buttons Entering a new parameter value and entering a password can also be done with these buttons The numeric keypad buttons are also used in case of editing the name of a program In this case they are used to enter
5. 00 4 Overview screen During normal operation the display will show the overview screen In this screen the currently selected program number and name is displayed in the upper line The lower line is used to display the current state of the machine In case an alarm is active the alarm text will be shown on the lower display If the machine is running the lower line is used to display temperatures and time left to finish cycle Before starting the machine the overview screen may look like 1 Program name Ready to start The screen indicates that program number 1 is selected and that the machine is ready to start If the start button is pushed the software will check if all inputs are in the right state If all inputs are ok the cycle is started and the message ready to start will be replaced by the current status of the drying program The machine will start a drying cycle according to the adjustments made in program 1 If a cycle is running the lower line can display 2 different lines 24 75 C Drying or C 30m 140m Which line is displayed depends on the setting in machine parameter 7 see chapter Machine parameters This parameter is used to adjust if the status line should only indicate the temperature only the times or if the status line should toggle between temperature and time 4 1 Status line with temperature As explained above the status line with temperature may look like 24 75 C Drying Th
6. 4 is or has been in the off state This means one of the overload protections is activated 003 Error frequency inverter The input for the error of the frequency inverter input 11 is or has been in the off state This means that one of the frequency inverter s gives an error signal 006 Gas heater alarm The input for the error of the gas heater input 14 is or has been in the off state for minimum 3 seconds This means the gas heater gives an error signal 007 Fire suppression The input for fire suppression input 15 is or has been in the off state This means the fire suppression contact is activated 008 Overheating switch The input for the overheating switches input 9 is or has been in the off state while the heater was switched on This means that one of the overheating switch es is activated 010 Rotation sensor time out While the drum was running the rotation sensor didn t go from the on to the off state for a too long time This can mean the drum is jammed or the drum motor isn t working properly 011 No air pressure The input for the air pressure switch input 8 is or has been in the off state This means the air pressure isn t sufficient 012 Lint filter door opened The input to detect if the lint filter door or drawer is closed input 2 is or has been in the off state This means that the lint filter door or drawer has been opened Manual M720 Dryer controller
7. 5 Pin 6 Input 6 Pin 7 Input 7 Pin 8 Input 8 Pin 9 Common for inputs 1 until 8 OVDC or 24VAC neutral Address Every extension board connected to a controller must have a unique address This address may vary between 1 and 8 The address can be set up with the dipswitches on the extension board Switch 1 Switch 2 Switch 3 Switch 4 Address OFF OFF OFF OFF 1 ON OFF OFF OFF 2 OFF ON OFF OFF 3 ON ON OFF OFF 4 OFF OFF ON OFF 5 ON OFF ON OFF 6 OFF ON ON OFF 7 ON ON ON OFF 8 Manual M720 Dryer controller Page 9 of 42 HW 1 00 SW 1 00 Manual revision 1 00 2 3 I O signals from and to the dryer By default the inputs and outputs on the dryer controller board have a fixed assignment Depending on the type of the machine the assignment of the inputs and outputs on the extension boards may vary In this chapter the assignments and purpose of the inputs and outputs on the CPU board are described 2 3 1 Input signals on the CPU board As described in chapter 2 1 the dryer CPU board has 16 digital inputs available to connect signals needed to control the dryer In the input list below will be referred to message numbers when an input is not in the right state The list of messages with corresponding numbers can be found in chapter 7 Input 1 Door closed This input should be on when the door is closed A program can only be started in case the door is closed When a drying cycle or cool down cycle is busy and the do
8. Changing the value must be confirmed by pressing the enter button The upper line will show the number and name of the parameter followed by the value P On the lower line the maximum and minimum limit will be displayed The V icon indicates if it is possible to still move up or down in the list and the icon is displayed to indicated if it is possible to increase or decrease selected value If the shift button is used in combination with the arrow buttons the controller will move to the first or last item in the list If the shift button is used in combination with the plus and minus buttons the value will be increased and decreased in larger steps The following program parameters are available 01 Drying method As standard the controller is installed with 1 temperature sensor In this case only the parameter Time is available in the drying method setting of the program menu If the machine is equipped with a second temperature sensor or with an infrared sensor an additional parameter Temp is available for controlling how drying is handled If this parameter is set to Time the program will do drying purely based on time which means a drying step will always last just as long as the adjusted drying time see program parameter 6 If this parameter is set to Temp the drying step will last until the controller has detected the batch is dry After that the defined drying time is started If no 2 temperature sensor and n
9. ad nennen enne enne 3 6 9 Controller information saie a aas Ra en cte case ARASA E AT S R A esta Rue 3 TYAS ME 3 8 Default settings and default programs ssssssssssesee eene eene nennen ener nnns 3 8 1 Default program settings and default programs seem 3 8 2 Default machine parameter settings sssssseeeeeee nemen 3 9 Setting up a new controller tenerent nennen nette A dern aa hne tnra 3 Manual M720 Dryer controller Page 4 of 42 HW 1 00 SW 1 00 Manual revision 1 00 1 General description of the controller The M720 is a user configurable microprocessor controller used to control drying machines Because of the versatility of the software it can be used in almost any type of dryer without the need to modify the software The controller has the following features 192 x 32 pixels display fully graphically controlled 3 large 7 segment displays to indicate estimated time left and alarms 20 buttons with cap sense technology These buttons work with capacitive measurement without any moving parts so increasing reliability 50 different drying programs each with an own name of up to 32 characters to indicate the type of program 16 digital optically isolated inputs 24VAC or 24VDC 8 digital relay outputs up to 250VAC 8A 2 probes for temperature measurement 1 analogue output for controlling the drum speed in cases where a frequency inverter is used Up to 8 ext
10. characters see chapter 6 4 2 12 Temporary temperature set point change When a drying or cool down cycle is active the default set point temperature as adjusted is set at the moment the drying or cool down cycle starts Sometimes it is necessary to manually adjust the temperature to a higher or lower set point This can be done with these buttons in combination with the SHIFT button see item 10 If the SHIFT button see item 10 is pushed in combination with the INCREASE TEMPERATURE button the current temperature set point will be increased by 5 degrees Fahrenheit or 2 8 degrees Celsius If the SHIFT button see item 10 is pushed in combination with the DECREASE TEMPERATURE button the current temperature set point will be decreased by 5 degrees Fahrenheit or 2 8 degrees Celsius The controller uses Fahrenheit units internally but the interface units are configurable as either Fahrenheit or Celsius When the interface temperature units is set to Fahrenheit increments of 5 degrees increase or decrease will be displayed When the interface temperature units is set to Celsius the display will sometimes show an increment of 2 degrees and sometimes an increment of 3 degrees This is because 5 degrees Fahrenheit is equal to 2 8 degrees Celsius but DOES NOT influence the actual increment which is always 5 degrees Fahrenheit Please note that these changes in set point are temporary They do not change the adjusted value in the active program This
11. installation there is no need to change the values unless there are changes to the physical installation In the edit machine configuration screen a parameter can be selected with the arrow buttons up and down A value can be changed with the plus and minus buttons or with the numeric buttons Changing the value must be confirmed with the enter button The upper line will show the number and name of the parameter followed by the value ae On the lower line the maximum and minimum limit will be displayed With the V icon is indicated if it is possible to still move up or down in the list with the icon is indicated if it is possible to increase or decrease the value If the shift button is used in combination with the arrow buttons the controller will move to the first or last item in the list If the shift button is used in combination with the plus and minus buttons the value will be increased and decreased in larger steps The following configuration parameters are available 01 Startup logo nr When the controller starts up a start up logo will be displayed for 5 seconds Depending on manufacturer and distributor it can be useful to change the start up logo If the value of this parameter is 0 no start up logo will be displayed 04 2nd temp sensor This parameter indicates if a 2m temperature sensor is connected This means that an extra temperature sensor is mounted at the air inlet of the machine 05 Infrar
12. means that in the next program cycle the settings adjusted in the program cycle will be used again Also if a temporary change is made in the drying cycle of the program this doesn t influence the cool down temperature setting adjusted 13 Temporary time change When a drying or cool down cycle is active the adjusted drying or cool down time is set at the moment the drying or cool down cycle starts Sometimes it is necessary to manually adjust the time to a higher or lower value This can be done with these buttons in combination with the SHIFT button see item 10 If the SHIFT button see item 10 is pushed in combination with the INCREASE CYCLE TIME button the current time remaining in the drying or cool down cycle will be increased by 5 minutes If the SHIFT button see item 10 is pushed in combination with the DECREASE CYCLE TIME button the current time remaining in the drying or cool down cycle will be decreased by 5 minutes Manual M720 Dryer controller Page 17 of 42 HW 1 00 SW 1 00 Manual revision 1 00 Please note that these changes in time are temporary They do not change the adjusted value in the active program This means that in the next program cycle the settings adjusted in the program cycle will be used again Also if a temporary change is made in the drying cycle of the program this doesn t influence the cool down time setting adjusted Manual M720 Dryer controller Page 18 of 42 HW 1 00 SW 1 00 Manual revision 1
13. picture above buttons button groups and the displays are indicated with a number The following list describes the function of the displays and buttons 1 Numeric display A large display which can be read from longer distance Is used to display current alarm number and estimated cycle time remaining See chapter 4 3 2 Graphical display The display which is used to display detailed messages displaying parameter values counters etc Manual M720 Dryer controller Page 14 of 42 HW 1 00 SW 1 00 Manual revision 1 00 3 1 Buttons Item number in picture I Far e i s e 7 Ms mi 12 12 13 13 Normal function Start Stop Shift Enter Select program Home Arrow up move to previous item Arrow down move to next item Plus increase single step Minus decrease single step Number one alphanumeric special chars Number four alphanumeric Number two alphanumeric Number five alohanumeric 3 2 Display symbols Icon oo P P wor Description Temperature symbol Dry time and cool down time Arrow keys limitation Plus and minus keys limitations ABO e Key pad icons Manual M720 Dryer controller HW 1 00 SW 1 00 Manual revision 1 00 Shift function Clear Single cycle Setup Move to first item in parameter list Move to last item in parameter list Plus increase multiple steps Minus decrease multiple steps Increase temperature set
14. point Decrease temperature set point Increase cycle time Decrease cycle time Page 15 of 42 3 Home and setup button This button can be used in any screen to return to the overview screen In case the overview screen is active and this button is pushed in combination with the SHIFT button see item 10 the main menu is activated The main menu gives access to controller functions like reading and resetting counters adjusting parameters and doing test programs See chapter 6 for an explanation of the possibilities in the main menu 4 Select program button If this button is pushed in the main screen another drying program can be selected see chapter 5 1 1 In case the overview screen is active and this button is pushed in combination with the SHIFT button see item 10 a single cycle program can be entered see chapter 5 1 2 Note A pre defined drying program or a single cycle program can only be chosen if there is no active drying cycle a cool down cycle or when a program is finished but there is still a batch inside the machine In practice this means that this button only works if the machine is in the ready to start state 5 Start button This button is used to re start the machine and to reset alarm messages In case an alarm is active and the cause of the alarm has been solved the alarm can be reset by pushing this button To start the machine after selecting a program see chapter 5 2 or to restart the machine aft
15. recalculated with regard to the adjusted drum speed For example if the time out value is 10 and the adjusted drum speed is 50 the internally calculated time out value will be 20 seconds If no rotation sensor is defined in the machine configuration this parameter will not be visible 27 Jog drum speed If jog buttons and a drum with frequency inverter have been defined in the machine parameters see chapter 6 8 this parameter is used to adjust the drum speed in case jogging is active The value is a percentage of the maximum speed For example if 30 is adjusted the speed of the drum motor in case of jogging will be 30 of the maximum If no jog buttons or no drum with frequency inverter is adjusted this parameter will not be visible 30 Heater reset time Some types of heater require a reset signal before they will restart after a fault alarm When a program is started the output for resetting the heater will be activated output 1 as standard This parameter is the number of seconds the output will be on when starting a program The value used will depend on the type of heater refer to the heater s instructions for this 31 Blower clean time When a program is started the output for an optional clean signal like an air blast for the blower will be activated output 3 This parameter is the number of seconds the output will be on when starting a program 32 Blower WYE del If the machine is equipped with a star delta s
16. the start button is pushed the program cycle will resume The machine is ready to start If the start button is pushed the program cycle will begin Program cycle running Page 21 of 42 5 Basic operation and functioning The basic operation of the machine consists of the following steps 1 Selection of a drying program 2 Starting the cycle 3 Program running 4 Program completed During every one of these steps actions can or have to be done by the user This chapter describes which actions are possible and how to do the actions 5 1 Selection of a drying program Before a drying program is started the user must make sure that the correct drying program is selected The drying program is displayed in the upper line of the overview screen see also chapter 4 If the correct program is not selected for example a drying program for towels is selected but the current machine load is a batch of sheets the user must select another program If the correct program has been selected step 2 can be done see chapter 5 2 For choosing a program there are 2 possibilities If a pre defined program can be used chapter 5 1 1 is applicable It is also possible to manually configure a single cycle program This can be used in cases where there is no suitable pre defined program for example if a batch is already partially dry or in case of special material which is not normally done with this machine In case a single cycle pro
17. to Yes the jog buttons should be connected to inputs 12 and 13 Jog buttons allow the user to jog the drum motor when the machine is in a stop situation the emergency stop is not active and the door is closed If the drum motor is controlled by a frequency inverter a separate motor jog speed can be defined with machine parameter 2T 26 EDG replacement If the controller has to replace an existing machine with an EDG controller this parameter has to be set to Yes If set to Yes the machine will perform other checks on the filter door drawer open input and the overload input This has to be done so the controller can be replaced by just using the existing connectors without the need of changing the wiring of the switches Setting this parameter to Yes does also overrule the function of the inputs 8 9 10 and 15 air pressure switch overheating contact emergency stop safety switches and fire suppression input This means that if an EDG controller is replaced with an M720 controller in an existing machine this parameter has to be set to Yes and these inputs will not be monitored Please note that if an EDG controller has to be replaced by an M720 dryer controller the temperature sensor should also be replaced 6 9 Controller information The Controller information screen shows the current hardware and software version and the serial number of the controller This information can for example be used to check if the correct
18. 0 Dryer controller Page 39 of 42 HW 1 00 SW 1 00 Manual revision 1 00 8 Default settings and default programs When the M720 controller is delivered or when factory settings are recalled see chapter 6 6 3 default programs and default machine parameters will be available 8 1 Default program settings and default programs Because the used language can vary no default program names are set except for program 50 which will be called Single cycle All programs are set to the following default values 01 Drying method 02 Material type 06 Drying time 07 Dry temperature 10 Cooldown time 11 Cooldown temp 13 Drum direction 14 Drum speed 15 Drum stop time 16 Drum run time 19 Anti crease funct 22 Max temp rise 23 Max temp fall TIME 2222 Unknown 40m 167 F 75 C 10m 95 F 35 C YES 0 m 0 m In the default programs some parameter values are set to a different value to provide different programs to start with The following default programs are available Program O1 dg 0 100109 oo Manual M720 Dryer controller HW 1 00 SW 1 00 Manual revision 1 00 Drying time Drying temperature 167 F 75 C 140 F 60 C 113 F 45 C 140 F 60 C 122 F 50 C 113 F 45 C 104 F 40 C 104 F 40 C 194 F 90 C 140 F 60 C Page 40 of 42 8 2 Default machine parameter settings The default machine parameter settings are 01 Tmp in Fahrenh
19. 25 opo e EO pote E Ebr tee beo Gags td e bg uci bu e abd d 3 6 3 4 Non resettable counters iiiseeiiiseeiiiteee tiit EAEE aane hh dde LERNTEN RARA ANTERA 3 6 4 Edit parameter Menuet itp eee tede adt taba aa Gat ue an ee tla cu a Eon ab 3 6 4 1 Edit program parameters S aene a e EAEE AEREE Ea aa andan dd had aa naa 3 6 4 2 Edit program name eon e hn Ede ert tu ob it ted n bd e E odd 3 6 4 3 Edt machine parameters ss 2 s eto dede t et oett E Led d E Fold ad 3 6 5 Test program menus todas beet en ale ade teg lat atc abi ue as dates sla Lat aeo Fal dea 3 6 5 1 View status of Inputs nen t ho lt ede tp t abt M d b old d 3 6 5 2 View status of OUfpUts omn een bod edo ert e ob ein d E odd 3 6 5 3 Testoutputs manually 2 e t o oet e e M d b old ad 3 6 5 4 Check power supply voltage sssssesesee eene een nennen enne nnns 3 6 6 System setup menUu nin eec edet ndr e RaRa AARS R Aar erai dulce HORE tenda ede a nd due 3 6 61 Agjust date amp time ioter nice eden iat ad eT a eee dE Lr da eek dede db uei 3 6 6 2 Change lariguage dee dette het eoe eae ee aae Reda hn An To ud EE ue 3 6 6 3 Restore factory settings nemen PaA AaS hiara 3 6 6 4 Reset maintenance request sssssssssssssseeeeeeeenn eene nennen errem nnne 3 6 7 Alarm HISTORY erect mi eati ccd sents et eh cnet vetet eden cete A rena A este Ruhe 3 6 8 Edit machine configurations ss aa esdi iaie nee E Ra eaS aA
20. Ir ERR REDE DEDERE ATEM RR LEREE ER 3 A OVEIVIOW SOOO sidi oia NINE 3 4 1 Status line with temperature sseeeeessiieeeeeeeeeneeee entente entren en nrne nne tenen ennt nnn nnns 3 4 2 Status liniewitlitiries eni ce cia coer t t It etre e ed I haven oi d ede eS 3 4 3 Nu merlic display i 3 i ep er ED ed ep D Pu I 3 2 45 EEDAN IONS 2571205 Eh Ere erm ute n e cin dtd 3 5 Basic operation and functioning sse nennen nennen nennen nennen nennen nnns 3 5 1 Selection of a drying program essai anarie a aN AEA ener ener enne 3 5 1 1 Selecting an adjusted program ssssssssssese eene eene eene nennen nnns 3 5 1 2 Entering a single cycle program sessseeeeeneeenm nemen enne 3 5 2 Starting Rx 3 5 3 Program rurnining 2 eerte hee ai vices enr deve legen trae dde eade tnra d eh d dd head t 3 5 4 Program combpleted terere ertet d eiit dne Hle e otra ede vidas datnr Poe rh dated t 3 RUE m 3 6 1 Entering a password encender reed eite ene Hl e eek cera ede vidas E rh e danh n 3 6 2 Delayed start nie ceder ede ege ede dere A rh de doa rae e aed tru ee ada hee te 3 6 3 Counter Menu e 3 6 3 1 Counters per program cito eie eee tide Eee t ende End n d ined a d 3 6 3 2 Gounters per day iet ini Ee E eed eres d t gat edo tt Ma e bust d 3 6 3 3 Counters irictotal
21. MOBICS Mobics B V Lauwersmeer 9c 5347 JR Oss The Netherlands T 31 0 412 69 12 90 www mobics nl F 31 0 412 69 12 92 User Manual Dryer Controller M 20 Hardware version 1 00 Software version 1 00 Preliminary version Manual M720 Dryer controller Page 1 of 42 HW 1 00 SW 1 00 Manual revision 1 00 Document history Preliminary version Created in April 2009 Manual M720 Dryer controller Page 2 of 42 HW 1 00 SW 1 00 Manual revision 1 00 This page intentionally left blank Manual M720 Dryer controller Page 3 of 42 HW 1 00 SW 1 00 Manual revision 1 00 Table of contents Document history 2 i248 er ott re t eed aise et ut das 2 1 General description of the controller ene eene enne 3 2 Connecting the controller and the extension boards sse emen 3 2 1 Dryer controller M20 5 1 rotae eterne htec Eee te eee AAA 3 2 2 Extension board type M701 orerar ae eera a a e a a ea e aeaa 3 2 3 I O signals from and to the dryer nennen nennt nennen 3 2 3 1 Input signals on the CPU board erreiaren eene nennen nnnm enne nnns 3 2 3 2 Output signals on the CPU Doadores ane E EE EEE TE nnne 3 2 4 Replacing the battery iiir oer ce tte ri tp ice d o i t dr 3 3 Display and buttons on the controller sssssseseeeeeenenn enm nemen 3 SA BUttors a cione tit em tt dato e rent obti aot eI tee te 3 3 2 Bisplay Symbols 25 5 a trace ee DEDE Red RR IER RID REDE Ee OMA
22. Page 37 of 42 HW 1 00 SW 1 00 Manual revision 1 00 013 Door opened The input to detect if the door is closed input 1 has been in the off state while it should be in the on state The controller checks if the door is closed when a program is started and when a program is running If in this case the door is opened this message will be displayed 014 Air flow sensor error The input which monitors air flow input 3 is not detecting the expected signal When the machine is started the input should be in the off state After the blower is started the input should change to the on state in the time defined in machine parameter 33 If the input is in the on state when starting up or does not go to the on state in time then no air flow is detected As this situation can be dangerous the machine is stopped Please note that if a dryer is stopped and then restarted quickly this message can appear without Because of the inertia of the blower motor air will still be flowing and the switch will stay in the on state for a short time after the blower motor has been stopped If the machine is started again in during this period this message will also be given Also please note that if the lint filter door or drawer is opened when a program is running the air flow will change which can also cause the switch to open In this case an additional air flow sensor error will be given 16 Temperature sensor 1
23. W 1 00 Manual revision 1 00 automatically compensated by the software If the drum is running and the rotation sensor hasn t been detected properly for too long message 10 is displayed Please note that the rotation sensor can only be a sensor of the 24VDC type If a 24VAC type is used this will not work and rotation alarms will be displayed continuously Input 8 Air pressure switch This input is used to connect an air pressure switch to detect if enough air pressure is available for the machine to be able to operate The controller will continuously check input 8 If enough air pressure is present the input should be on If the input is in the off state this means not enough air pressure is present and the machine is not allowed to run In this case message 11 is displayed If no air pressure switch is connected this input should be connected to 24V so it is always in the on state Input 9 Overheating input This input is used to connect an overheating switch Usually the overheating switch is wired into the output circuit which goes to the heater This is done for safety so the heater can never be on in case the overheating switch is active If the overheating switch is connected to input 9 as well the heater output is fed back to the overheating input through the overheating switch which can be seen in the wiring example below Overheat Heater Overheating Heater Input output switch valve If no overheat input i
24. a cool down cycle During cool down the controller will adjust the temperature control function so that the temperature will not fall more than this adjusted maximum If this value is set to 0 no maximum fall is active and the controller will try to reach goal temperature is soon as possible 6 4 2 Edit program name A program name can be defined for each program This name can describe for example the type of material the program has been set up for The maximum length of a program name is 32 characters and the maximum number of pixels is 170 If program names are edited in the controller only western European characters can be used When the item Edit program name is chosen and the current program name has characters which are not in the range of western European characters these characters will be replaced by a When the screen is activated the cursor will be on the first character The cursor can be moved with the ARROW UP and ARROW DOWN buttons Changing the character where the cursor is on can be done with the numeric keypad in more or less the same way sms messages are created on cell phones The list with characters per button is Button number Character sequence rete O O OO N O On B oo Po 6 4 3 Edit machine parameters The machine parameter list is a list with parameters which can be adjusted to set up general parameters in the machine Th
25. ameter can be used to set the drum direction Left Only turn left output 5 drum will never stop Right Only turn right output 6 drum will never stop Rev Toggle between left output 5 and right output 6 runtime and stop time adjustable with program parameters 15 and 16 If no reversible drum is configured this parameter will not be visible 14 Drum speed If the machine is equipped with a drum with frequency inverter see chapter 6 8 machine configuration this parameter can be used to adjust the drum speed during drying cool down and anti crease The value of this parameter is a percentage of the maximum speed So if this parameter is set to 50 the drum will run at half the maximum speed When no drum with frequency inverter is installed this parameter will not be visible 15 Drum stop time If the machine is equipped with a reversible drum motor and program parameter 13 is set to reversing this parameter allows the time the drum will stop when switching direction to be defined So after running for the time defined in parameter 16 the drum will stop for the time defined in parameter 15 and then start again in the other direction If no reversible drum is installed or the drum direction is not set to reverse this parameter will not be visible Note This value is an additional value to the minimum stop time which is 4 seconds So for example if this parameter is set to a value of 6 the stop time will be 6 4
26. and an alarm message is displayed see chapter 7 Alarms When Check power supply voltage is chosen in the Test program menu the screen will show the current power supply voltage In case of an AC power supply the voltage is rectified which means that the displayed voltage is higher than the AC voltage supplied to the controller This factor is around 1 4 So if the power supply is 24VAC voltage this screen will show approx 1 4 24 33 6 Volts If DC power is supplied to the controller this doesn t have to be rectified which means that the value in the display is more or less the same value as really supplied to the controller 6 6 System setup menu The System setup menu is a menu with items which are not directly related to the control functions of the machine itself but define the complete installation and user interface The available items are used to set up some extra features of the controller 6 6 1 Adjust date amp time Password level 1 is required to be able to adjust current date and current time When the item Adjust date amp time is chosen from the System setup menu the screen will show the current date amp time in the display with the cursor blinking on the first edit field the day field in the date The current date can only be viewed and edited in a DD MM YYYY format The displayed time is in HH MM format The adjusted date and time are internally used in the controller to create a
27. and outputs All print boards have to be connected to a power supply and to the inputs and outputs through the available connectors This chapter describes the location and the purpose of each available connector on the print boards 2 1 Dryer controller M720 The dryer controller is build up from 2 print boards a processor board and a front print board The processor board has number M721A and the front print board with the buttons and the displays has number M721B All the connections on the dryer controller are on the backside on the processor board The connectors are used for different purposes Battery 1 I J7 J l JA H 9 1 X J8 o U J9 mi 9 JT1 J10 J7 Inputs 1 until 8 Pin 1 Input 1 Pin 2 Input 2 Pin 3 Input 3 Pin 4 Input 4 Pin 5 Input 5 Pin 6 Input 6 Pin 7 Input 7 Pin 8 Input 8 Pin 9 Common for inputs 1 until 8 OVDC or 24VAC neutral Manual M720 Dryer controller Page 6 of 42 HW 1 00 SW 1 00 Manual revision 1 00 J8 Power supply 21 24 VAC VDC Pin 1 Pin 2 24VDC 24VAC OVDC 24VAC Neutral J9 Inputs 9 until 16 Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Input 9 Input 10 Input 11 Input 12 Input 13 Input 14 Input 15 Input 16 Common for inputs 9 until 16 OVDC or 24VAC neutral J10 Relay outputs 1 until 8 Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 Pin 12 Commo
28. d an extension board can be selected with the ARROW UP and or ARROW DOWN button If no extension boards are connected the arrow buttons will not be visible Module number 1 is the extension board with address number 1 module 2 is the extension board with address 2 and so on See chapter 2 2 for an explanation of how to set up an address of an extension board After selecting a module number an input number can be chosen with the PLUS and MINUS buttons The dryer controller itself has 16 inputs extension boards each have 8 inputs If module number 0 is selected the input number can vary between 1 and 16 If an extension board module number 1 to 8 is selected the input number can vary between 1 and 8 On the lower line of the display the current status of the input is shown If an input receives a 24V signal the status of the input will be ON and if no signal is received on the input the status of the input will be OFF The following example will explain how to test the door closed input The input for door closed is input 1 on the dryer controller To check the status of this input first select module number 0 with the ARROW UP and or ARROW DOWN button Module number 0 means viewing the inputs on the dryer controller itself After that select channel number 1 with the PLUS and or MINUS buttons Channel number 1 means input 1 If the module number is set to 0 and the channel number is set to 1 the input status of the door closed
29. e Manual M720 Dryer controller Page 33 of 42 HW 1 00 SW 1 00 Manual revision 1 00 start up logo or an empty screen will be shown for around 4 seconds If during this time the SHIFT button and the ENTER button are held simultaneously the screen to change the language will be activated as well so another language can be selected 6 6 3 Restore factory settings Restoring factory settings should normally not be necessary because all parameters are stored in non volatile memory which does not need a battery to retain its data But in some cases it can be useful to be able to go completely back to factory settings If the item Restore factory settings is chosen from the System setup menu and the password level is sufficient the screen for restoring factory settings will be displayed If the password level is too low the password screen will be activated A password level 2 is necessary to get access to the factory settings screen If the screen for restoring factory settings is displayed the factory settings can be restored by pushing the SHIFT button and NUMERIC 9 button at the same time When factory settings are restored the overview screen will be activated again Because restoring the factory settings is a time consuming process the normal program cycle can be halted for a while During the time needed to restore all factory settings the beeper will sound continuously Please note that restoring factory settings w
30. e Counter menu the item Counters per day is chosen the counters of the current day will be displayed On the 1 line the date can be seen in DD MM YYYY format With the PLUS and MINUS buttons the counters of the next and previous day can be viewed With the ARROW UP and ARROW DOWN buttons one can scroll through the available counters per day In this case there are 2 different counters Number of batches The number of batches processed this day Running minutes The number of minutes a program cycle has been active this day It is not possible to reset the day counters This is also not necessary since a new counter record will start from 0 automatically every day To be able to use the information of the counters per day it is important to ensure date and time are adjusted correctly See chapter 6 6 1 6 3 3 Counters in total With the counter set Counters in total the user can see how many batches and how many hours the machine has run in total so not depending on the day or the program Selecting the item Counters in total from the counter menu will display the total counters With the ARROW UP and ARROW DOWN buttons one can scroll through the available total counters In this case there are 2 different counters Number of batches The number of batches processed in total since the last reset Running hours The number of hours the machine has been running since the last reset Resetting the total counters can be done by p
31. e E symbol means that heating is active The machine is warming up to reach or maintain the adjusted temperature If the software temperature controller decides that heating should be off the symbol will disappear and the f symbol will be replaced by a B symbol indicating that the heater output is off If the heater output is on the yellow LED will also be on see chapter 4 4 The 24 75 C string indicates the current temperature and goal temperature In this example the current temperature is 24 C and the goal temperature is 75 C In this example the temperature is displayed in degrees Celsius It s also possible to use Fahrenheit units This is adjustable with machine parameter 1 see chapter Machine parameters The last text in the line indicates which step in the drying cycle is active In this example the drying step is active When the drying step is completed the dryer will switch to cool down mode and the text Drying will be replaced by Cooling down Manual M720 Dryer controller Page 19 of 42 HW 1 00 SW 1 00 Manual revision 1 00 4 2 Status line with times As explained the status line with times may look like this D 30m 4om The symbol indicates that the drying step is active The estimated remaining time for drying is 30 minutes If the cool down step is active the e symbol will be replaced by the e symbol The D symbol is a symbol for the total time remaining The total time remaining
32. e used in combination with the SHIFT button see item 10 If the arrow buttons are used in combination with this button the item will move to the first or last item instead of moving to the next or previous item 8 Plus and minus buttons These buttons can be used to increase or decrease an adjustable value like a parameter If the buttons can be used in a screen this will be indicated with an icon If a value is in the screen and it s possible to use both the plus and minus buttons the icon will be displayed If it is only possible to use the plus button for example when a value has reached the maximum allowed limit the icon will be displayed If it is only possible to use the minus button for example when a value has reached the minimum allowed limit the icon will be displayed In many cases these buttons can also be used in combination with the SHIFT button see item 10 If the plus and minus buttons are used in combination with this button a value will increase or decrease with a higher value instead of 1 Manual M720 Dryer controller Page 16 of 42 HW 1 00 SW 1 00 Manual revision 1 00 9 Enter and clear button Pushing this button without the SHIFT button see item 10 means Enter If the button is pushed in combination with the SHIFT button see item 10 is has a Clear function The enter button is used to confirm a choice or an adjustment For example if another program is selected from the list
33. ean filter The dryer controller will monitor input 16 to check if the filter needs to be cleaned see chapter 2 3 1 input 16 If the controller detects that the filter needs to be cleaned this message will be displayed This message is automatically removed when the filter is clean again or when the machine is stopped 31 Delayed start in Delayed start has been adjusted and the timer for the delayed start is counting down to 0 At the moment the counter reaches 0 the machine will automatically start see chapter 6 2 34 Maintenance request The maintenance request counter is 0 and the machine needs maintenance The number of batches which can be done between 2 maintenance requests is adjustable with machine parameter 5 Resetting the maintenance request can be done via the System Setup menu see chapter 6 6 4 Manual M720 Dryer controller Page 38 of 42 HW 1 00 SW 1 00 Manual revision 1 00 36 Waiting for cycle restart While a program was running the machine was stopped either by an alarm or by pushing the stop button If the start button is pushed the machine will continue its cycle If the stop button is pushed the program cycle will be stopped 37 Program finished A program is finished If the door is opened the machine will finish and start from the beginning again 38 Ready to start The machine is ready to start a new program If the start button is pushed and all inputs are okay a program cycle will start Manual M72
34. ed RS485 port to communicate with a PC for downloading translations and monitoring Every controller in a network must have a unique station number This parameter is used to set the station number of this controller 12 RS485 baudrate The controller is equipped with a so called RS485 port to communicate with a PC for downloading translations and monitoring This parameter is used to adjust the communication speed of the RS485 port Value 0 115 200bps Value 1 38 400bps Value 2 9 600bps Every controller in a network must be adjusted to the same communication speed In cases where long cables are used to connect controllers to the network or in case of difficulties with communication between PC and controller often a lower communication speed is necessary When this parameter is changed the controller must be restarted 16 Cnt reset no pass If this parameter is set to yes the counters per program see chapter 6 3 1 can be reset without a password If this parameter is set to no password level 1 1234 is needed to be able to reset the counters per program Manual M720 Dryer controller Page 30 of 42 HW 1 00 SW 1 00 Manual revision 1 00 20 Use coin box If a coin box is configured in the machine configuration see chapter 6 8 this parameter is used to adjust if the coin box should be used value Yes or should not be used value No If no coin box is defined in the machine configuration this parameter will
35. ed sensor This parameter indicates if an infrared sensor is available to measure the linen temperature 07 Reversable drum This parameter indicates if the drum can turn left and right with a reverse relay If this parameter is set to yes output 5 and 6 are used for the motor direction and in the program parameters parameters 13 15 and 16 are used to adjust the motor direction motor run time and motor stop time 08 Drum with freq inv This parameter indicates if the drum motor is controlled with a frequency inverter If so the drum speed can be controlled by connecting the analogue output of the controller to the analogue input of the inverter With program parameter 14 the drum speed can be adjusted per program 11 Use material para This parameter indicates if the material parameter per program has to be used Is not implemented in the current revision of the controller so always set this parameter to No 12 Status output func This parameter sets the function of the status output output number 2 which can be used to give a signal to an external system or for example to connect an alarm light Value 0 Output on when a drying cycle or cool down cycle is busy In this case the output will be switched on when a drying cycle starts and will switch off when the program is finished This means that the output will always be on even if the machine is stopped by an alarm or by the user until a program is completed Manual M720 D
36. eeper will sound for the time defined in machine parameter 6 see chapter 6 4 3 This beeper sound will restart every 2 minutes After finishing a program the machine will either stop or the anti crease cycle will start if this is selected The anti crease function can be enabled or disabled in the program parameters see chapter 6 4 1 If anti crease is enabled the machine will be stopped for 2 minutes after finishing a program cycle After 2 minutes anti crease starts This means that the drum direction and speed as defined in the program will be used and the blower will be off Note Because the blower output is off during anti crease operation the anti crease function will not work if the blower and the drum motor are both connected to output 7 during installation of the controller If a cycle is completed the dryer will stay in this step audible signal and or anti crease operation until the door is opened When the door is opened the controller assumes the dryer will be emptied and will go back to the ready to start state as described in chapter 5 1 Manual M720 Dryer controller Page 23 of 42 HW 1 00 SW 1 00 Manual revision 1 00 6 Menu structure If a parameter setting needs to be changed a counter needs to be read or reset or test programs need to be run these items can all be accessed via the main menu The main menu can be accessed by pushing the set up button in the main screen The set up button is the SHIFT butto
37. eit NO 05 Maintenance cycl 0 06 Finished beeptim 5s 07 Overview status 0 11 RS485 stationnr 1 12 RS485 baudrate 0 16 Cnt reset no pass YES 20 Use coin box NO 21 Coin box 1 time Om 22 Coin box 2 time Om 26 Rotation time out 10s 27 Jog drum speed 25 96 30 Heater reset time 3s 31 Blower clean time 5s 32 Blower WYE del 10s 33 Del check airflow 10s Manual M720 Dryer controller HW 1 00 SW 1 00 Manual revision 1 00 Page 41 of 42 9 Setting up a new controller Controllers are delivered with battery but in most cases the battery will not be placed into the holder This is done to save battery energy when the controller is kept on stock Because the dryer was shipped without a battery installed the battery backed up memory will be gone This means that the program counters counters per day and the total counters will be 0 Also the time and date settings will be lost and set to a default value Set the date and time to the correct value as described in chapter 6 6 1 All machine configurations will be at the default value when the dryer is shipped So the machine configurations also have to be set according to the type of dryer and the available options The controller will start up in the default language which is English If necessary the desired interface language can be changed as described in chapter 6 6 2 Manual M720 Dryer controller Page 42 of 42 HW 1 00 SW 1 00 Manual revision 1 00
38. en and empty This indicates that the drying and cool down has been done and that the batch is ready to be taken out of the dryer When the machine is not drying or has finished a program and no alarms are active the numeric display will only show Manual M720 Dryer controller Page 20 of 42 HW 1 00 SW 1 00 Manual revision 1 00 4 4 LED functions The controller has 3 LED s in total one yellow one next to the numeric display a red one in the stop button and a green one in the start button The yellow LED indicates the status of the heating output If the LED is on the heater is output is on and when it is off the heater output is also off The red and green LED s are used to indicate the current machine status The LED function table for the red and green LED is Red LED Green LED On Blinking Blinking Blinking On Off Off Blinking Off On Manual M720 Dryer controller HW 1 00 SW 1 00 Manual revision 1 00 Meaning A warning or alarm is active The upper numeric display will toggle between and the alarm number See chapter 7 for the available alarms A program cycle is finished and the controller is waiting for the batch to be taken out of the machine The upper numeric display will toggle between and empty The stop button was pushed during a running cycle If the stop button is pushed again the cycle will be cancelled and the machine will return to the ready to use state If
39. ence that the status of the output is controlled with the ENTER button If the right output is selected by setting the right module and channel number the output will be in the OFF state initially When the ENTER button is pushed the output will be switched on and the state will change to ON The output will stay in the Manual M720 Dryer controller Page 32 of 42 HW 1 00 SW 1 00 Manual revision 1 00 ON state as long as the ENTER button is pushed and will return to the off state when the enter button is released The following example explains how to test the blower output The blower output is output number 7 on the dryer controller If necessary select module number 0 with the ARROW UP and or ARROW DOWN button Module number 0 means testing the outputs on the dryer controller itself After that select channel number 7 with the PLUS and or MINUS buttons Channel number 7 means output 7 If the module number is set to 0 and the channel number is set to 7 the blower output is selected If the ENTER button is not pushed the output status will be OFF If the ENTER button is pushed the controller will switch on the relay at output 7 and the state will go to ON 6 5 4 Check power supply voltage The dryer controller has an on board facility to monitor the voltage supplied to the controller If the power supply voltage drops below the low voltage limit or rises above the high voltage limit all outputs will be switched off
40. ension boards each with 8 inputs and outputs can be used to extend the number of inputs and outputs if required Power supply 24VAC or 24VDC RS485 communication port for communication with PC for up and downloading parameters translations character sets etc Power supply monitoring In case the power supply drops below or rises above a certain limit the controller will switch off all outputs and give an alarm message Full worldwide character set including Chinese Japanese Thai Russian Arabic and Greek characters Possibility to store up to 50 different languages No parameter settings will be lost in case of power supply failure or an empty battery Self configurable start up logo which can be used to customize the controller Possibility to edit and add languages with the use of free software Extended test programs which allow the user to monitor and control each input output individually Counters per program total counters and counters per day The production data of the last 50 days is stored Alarm history which records the last 50 alarms and messages since the last start up Manual M720 Dryer controller Page 5 of 42 HW 1 00 SW 1 00 Manual revision 1 00 2 Connecting the controller and the extension boards A dryer controller set always comprises a dryer controller CPU board with inputs and outputs on board Optionally the controller can be expanded with extension boards to increase the number of available inputs
41. er a temporary stop see chapter 5 3 this button also has to be used 6 Stop button This button is used to stop a program cycle In case the machine is running a cycle and this button is pushed once the dryer will stop and the message Waiting for cycle restart will be displayed If the start button is pushed in this situation see item 5 the cycle will restart If the stop button is pushed once again the current program cycle will be interrupted and the machine will go back to the ready to start situation again and a complete new program cycle can be started The stop button is also used to silence the beeper in case of an alarm At the moment an alarm is activated the beeper will start beeping every second To silence the beeper while working on the machine to solve the cause of the alarm push the stop button once 7 Arrow buttons These buttons can be used to scroll through a list of for example menu items If the buttons can be used in a screen this will be indicated with an icon If a list is in the screen and it s possible to both FS move up and down in the list the V icon will be displayed If it is only possible to use the down button for example when the current item is the first item in the list the V icon will be displayed If it is only possible to use the up button for example when the current item is the last item in the list the icon will be displayed In many cases these buttons can also b
42. error The cable of temperature sensor 1 is broken or there is a short circuit The controller detects that the sensor is not properly connected 17 Temperature sensor 2 error The cable of temperature sensor 2 is broken or there is a short circuit The controller detects that the sensor is not properly connected 18 Error power supply The 24V power supply is too low below 20 Volts or too high above 40 Volts Because this can cause damage to the controller it has switched all outputs off The actual power supply voltage can be checked at any time from the test program menu see chapter 6 5 4 19 Battery empty When starting up the controller checks if the battery backed up memory is still ok If not this message will be displayed This message will only be displayed after start up The battery capacity is enough for 1 year so it is strongly recommended to replace the battery every year see chapter 2 4 The START button must be pushed to reset the message 20 Microprocessor restarted The dryer controller is able to monitor its power supply If the power supply voltage is too low or too high alarm 18 will be displayed If the power supply voltage is too low for the controller to be able to operate the microprocessor will reset itself This can happen in case of a sudden brief voltage drop If this happens the microprocessor will memorize this and the next time the controller starts up alarm 20 will be shown on the display 25 Cl
43. ese parameters are used for all programs Because they are valid for all programs machine parameters are only accessible via the level 2 password In the edit machine parameters screen parameters can be selected with the arrow buttons up and down A value can be changed with the plus and minus buttons or with the numeric buttons Changing the value must be confirmed with the enter button The upper line will show the number and name of the parameter followed by the value P On the lower line the maximum and minimum limit will be displayed If the V icon is shown it is possible to move up or down in the list if the icon is shown it is possible to increase or decrease the value If the shift button is used in combination with the arrow buttons the controller will move to the first or last item in the list If the shift button is used in combination with the plus and minus buttons the value will be increased or decreased in larger steps The following machine parameters are available Manual M720 Dryer controller Page 29 of 42 HW 1 00 SW 1 00 Manual revision 1 00 01 Tmp in fahrenheit Put this parameter to yes if all temperature settings and displays should be displayed in Fahrenheit units instead of Celsius If this parameter is no all temperature settings and displays will be displayed in Celsius units Note This value only changes the units used for displaying temperature values Internally the contro
44. eters Edit program name Test outputs manually Adjust date amp time Level 2 9999 Reset counters in total Edit machine parameters Change language Restore factory settings Manual M720 Dryer controller Page 24 of 42 HW 1 00 SW 1 00 Manual revision 1 00 Level 3 1658 Edit machine configuration If a password is entered it will remain valid for 10 minutes If no action which requires a password is undertaken for 10 minutes the password level will be reset to 0 A special password 1111 is available for resetting the maintenance request see chapter 6 6 4 6 2 Delayed start In the M720 controller it is possible to define a delayed start If this menu item is chosen the screen for entering the start delay will be displayed In this screen the number of hours and minutes delay can be entered Changing values can be done with the NUMERIC keys and with the PLUS and MINUS buttons Changing the cursor to another edit field can be done with the ARROW UP and or ARROW DOWN buttons Confirming a value must be done with the ENTER button If the ENTER button is pushed when the cursor is on the minute field the delayed start will be activated and the overview screen will be activated again If both the number of hours and the number of minutes are set to 0 the delayed start timer will be preset to 30 seconds which is the minimum time for a delayed start The maximum time adjustable for a delayed start is 11 hours and 59 minutes In the o
45. gram is necessary go to chapter 5 1 2 5 1 1 Selecting an adjusted program From the overview screen the user can go to the program selection screen by pushing the SELECT PROGRAM button or by pushing one of the numeric buttons 1 to 9 In this screen a pre defined program can be selected with the numeric buttons 0 to 9 or with the ARROW UP and the ARROW DOWN buttons The currently selected program number together with the program name is displayed in the lower line of the display If the arrow buttons are used in combination with the SHIFT button the selected program will be increased or decreased by 10 When the correct program has been selected this has to be confirmed by pressing the ENTER button When this button is pushed the selected program will be activated and the overview screen is displayed again When this has been done the cycle can be started go to chapter 5 2 It is also possible to use the START button If this button is used the current selected drying program will be chosen the drying program will be started immediately and the main screen is activated again This means that cycle start as described in chapter 5 2 is executed immediately If no alarms are active go to chapter 5 3 5 1 2 Entering a single cycle program As explained in chapter 5 1 it is also possible to enter a single cycle program This is used in special circumstances like partially dried batches and special materials If the SELECT PROGRAM butto
46. ill restore the factory settings of all drying programs and the settings of the machine parameters These parameters are set as described in chapter 8 Restoring factory settings does not change the configuration parameters They will not be influenced by this operation 6 6 4 Reset maintenance request With machine parameter number 5 see chapter 6 4 3 it is possible to set a maintenance request count For example if machine parameter 5 is set to 500 and 500 batches are done the display will show Maintenance request before the machine can be started for a new program cycle see also chapter 7 Alarms This Maintenance request will be active until the message is reset via the System setup menu item Reset maintenance request If this item is selected a special password must be entered see chapter 6 1 For resetting the maintenance request the password is 1111 The remaining number of batches until the next maintenance request message is displayed can be seen in the non resettable counter set see chapter 6 3 4 6 7 Alarm history The alarm history list can be viewed by selecting Alarm history in the main menu The alarm history is a list with the last 50 alarms warnings and messages which have occurred The alarm history list will be reset each time the controller restarts In the alarm history screen the upper line displays which record number is currently displayed Scrolling through the list of records is d
47. input is shown If the door is closed the status of the input should be ON If the door is opened the status of the input should change to OFF 6 5 2 View status of outputs The View status of outputs screen can be used to check if the controller board is activating an output Viewing the status of an output can be done while the machine is running Selecting a module number and channel number is done in the same way as in the View status of inputs screen see chapter 6 5 1 The main difference between viewing the status of the inputs and viewing the status of the outputs is the number of available outputs on the dryer controller itself The dryer controller has 8 relay outputs and 1 digital outputs This means that if module number 0 is selected the channel number can be varied between 1 and 9 6 5 3 Test outputs manually As the name already says this test program can be used to manually activate an output Because the user takes over control of all available outputs password level 1 is necessary to be able to run this test program Also if a program cycle is active this cycle will be stopped to prevent the dryer from restarting automatically if the user quits this test program Selecting a module and channel is done in the same way as selecting an output in the View status of outputs screen see chapter 6 5 2 and chapter 6 5 1 The screen will look the same as the View status of outputs screen with the differ
48. is the estimated remaining drying time plus the estimated remaining cool down time In this example the total estimated time left is 40 minutes From this we can also derive that the estimated remaining cool down time is 10 minutes Because the estimated remaining drying time is 30 minutes and the estimated remaining total time is 40 minutes the estimated remaining cool down time is 40 30 10 minutes 4 3 Numeric display Just above the graphical display there are three 7 segment displays are placed These 7 segment displays can only be used to display numbers and some simplified symbols The 7 segment displays will be referred to as the numeric display The numeric display is larger than the graphical display which means that it can be read from further away It is used to indicate the current alarm number the estimated total cycle time left and to notify the user that a program is finished and that the batch is ready to be taken out If an alarm is active the numeric display will toggle between and the current alarm number In this case the lower line of the graphical display will show the alarm text corresponding with the alarm number For a full explanation of all available alarms see chapter Alarm and status messages If a drying or cool down cycle is running the numeric display will show the estimated time left for the cycle in minutes In case the program has finished the numeric display will toggle betwe
49. ller always works with Fahrenheit units 05 Maintenance cycle Use this parameter for setting the number of batches until a maintenance request is done If for example the value of this parameter is 500 then as soon as 500 batches have been done the controller will show the message Maintenance request when the machine is in rest The maintenance counter can be reset again in the System Setup menu item Reset maintenance request see chapter 6 6 4 The number of batches which still can be done until a maintenance request is displayed can be read in the non resettable counters screen see chapter 6 3 4 If this parameter is set to 0 the maintenance request option is disabled and no maintenance request will be displayed 06 Finished beeptim When a program is finished the controller will activate the beeper This parameter is the time the beeper will beep when a cycle is finished This time is repeated every 2 minutes until the door has been opened 07 Overview status This parameter is used to control the 2 line in the display in the overview screen when the machine is running Value 0 Toggle between current time left see value 1 and current temperatures and step see value 2 Value 1 Only show current temperature temperature set point and current step Value 2 Only show time left in current step and total time left until program is finished 11 RS485 Stationnr The controller is equipped with a so call
50. n alarm history list with start times and active times see chapter 6 7 and for the counters per day At the moment a new day begins according to the date and time adjusted in this controller a new counter record for the new day will be created see chapter 6 3 2 To adjust the value of the field where the cursor is use the numeric buttons and or the PLUS and MINUS buttons Confirm the new value with the ENTER button The cursor can be moved to the next or previous edit field with the ARROW DOWN and ARROW UP button 6 6 2 Change language Password level 2 is required to change the language of the controller display When Change language is chosen from the System setup menu the first line will tell the user to select a language from the list The 2 line shows the name of the current language like for example English Now a language can be selected with the ARROW UP and ARROW DOWN buttons When the right language is selected this choice can be confirmed with the ENTER button Because the M720 controller has a full world wide character set it is possible that the controller is set to a language which can not be read and or understood This can also happen if the language is accidentally changed to another language If this happens it would be difficult to go through the available menus and find the Change language item again Therefore a work around is available When switching the controller off and on again th
51. n for jogging in the right direction Manual M720 Dryer controller Page 11 of 42 HW 1 00 SW 1 00 Manual revision 1 00 Input 14 Gas alarm input If the machine is equipped with gas heating this input can be used to connect the alarm contact of the gas heater The input is checked continuously and if the input is in the on state the dryer is stopped and message 6 is displayed If the gas alarm input is not used this input should not be connected so it is always in the off state Input 15 Input fire suppression This input can be used to connect a fire suppression contact The controller continuously checks this input and if the input is in the off state the dryer is stopped and message 7 is displayed If the fire suppression in put is not used this input has to be connected to 24V so it is always in the on state Input 16 Clean filter warning This input can be used to connect a sail switch which can detect if the filter has to be cleaned The input will be checked when the heater and the blower motor are on If both outputs are on no overheating is active and input 16 is in the on state for 2 seconds the message Clean lint filter will be displayed If this input isn t used then it doesn t have to be connected 2 3 2 Output signals on the CPU board As described in chapter 2 1 the dryer CPU board has 8 digital relay outputs available to connect signals needed to control the dryer Output 1 Heater u
52. n for output 1 Output 1 Output 2 Output 3 Output 4 Common for output 2 3 4 7 and 8 Output 5 Common for output 5 and 6 Output 6 Output 7 Output 8 normally open contact Output 8 normally closed contact J11 Analogue I O and digital output Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 NTC sensor 1 wire 1 NTC sensor 1 wire 2 NTC sensor 2 wire 1 NTC sensor 2 wire 2 Analogue out ground Analogue out 0 10VDC GND 24VDC Digital output 24VDC not potential free max 20mA Manual M720 Dryer controller HW 1 00 SW 1 00 Manual revision 1 00 Page 7 of 42 2 2 Extension board type M701 SSSA EEE SAN S Bj ETE A khare a a 8e a6 io p Ep ip p tg LL SL T4444 114410 1 12 J3 J1 Power supply connection 1 Pin 1 24VDC 24VAC Pin 2 OVDC 24VAC Neutral J3 Relay outputs 1 until 8 Pin 1 Common for outputs 1 2 3 and 4 Pin 2 Common for outputs 1 2 3 and 4 Pin 3 Output 1 Pin 4 Output 2 Pin 5 Output 3 Pin 6 Output 4 Pin 7 Common for outputs 5 and 6 Pin 8 Output 5 Pin 9 Output 6 Pin 10 Common for outputs 7 and 8 Pin 11 Output 7 Pin 12 Output 8 Manual M720 Dryer controller HW 1 00 SW 1 00 Manual revision 1 00 Address Page 8 of 42 J5 Power supply connection 2 Pin 1 24VDC 24VAC Pin 2 OVDC 24VAC Neutral J10 Inputs 1 until 8 Pin 1 Input 1 Pin 2 Input 2 Pin 3 Input 3 Pin 4 Input 4 Pin 5 Input
53. n in combination with the HOME button Press the SHIFT and HOME button combination and the main menu will be displayed Items can be selected from the menu by using the ARROW UP and or ARROW DOWN button Confirming the choice of an item is done by pressing the ENTER button Some items give direct access to functions some items will open another menu The menu tree is as follows MAIN MENU gt DELAYED START gt COUNTER MENU gt COUNTERS PER PROGRAM gt COUNTERS PER DAY gt COUNTERS IN TOTAL gt NON RESETTABLE COUNTERS gt EDIT PARAMETER MENU gt EDIT PROGRAM PARAMETERS gt EDIT PROGRAM NAME gt EDIT MACHINE PARAMETERS gt TEST PROGRAM MENU gt VIEW STATUS OF INPUTS gt VIEW STATUS OF OUTPUTS gt TEST OUTPUTS MANUALLY gt CHECK POWER SUPPLY VOLTAGE gt SYSTEM SETUP MENU gt ADJUST DATE amp TIME gt CHANGE LANGUAGE gt RESTORE FACTORY SETTINGS gt RESET MAINTENANCE REQUEST gt ALARM HISTORY gt EDIT MACHINE CONFIGURATION gt CONTROLLER INFORMATION 6 1 Entering a password For gaining access to some of the menu items mentioned above a password is necessary The controller will not ask for a password unless it is needed to approve access to a menu item If an item is password protected the password screen will be activated and the controller will prompt to enter a password Passwords are available in different levels Level 1 1234 Reset counters per program Edit program param
54. n is used in combination with the SHIFT button the screen for entering a single cycle is displayed In the single cycle screen a self chosen drying time and temperature can be entered By default the values are as defined in program 50 and these values can then be adjusted by the user The screen will start up with the edit field on the drying time If necessary change the drying time value with the PLUS or MINUS buttons or with the NUMERIC buttons and confirm with the ENTER button When the ENTER button is pushed the cursor will move to the drying temperature Change the value if necessary in the same way and confirm with the ENTER button When the ENTER button is pushed Manual M720 Dryer controller Page 22 of 42 HW 1 00 SW 1 00 Manual revision 1 00 while the cursor is on the drying temperature the overview screen is activated again and the cycle is ready to be activated see chapter 5 2 In the screen for entering a single cycle drying time and temperature the cursor can be moved to the next or previous edit field with the ARROW UP and ARROW DOWN buttons When a single cycle program is finished the controller will automatically switch back to the pre defined program which was last used before the single cycle was started 5 2 Starting the cycle After the correct program has been selected a program cycle can be started with the START button If this button is pushed the software will check if all inputs are in the correct state
55. nit reset This output can be used to connect a signal to reset the heater installation Every time a new drying program is started this output will be activated for the time adjusted in machine parameter 30 see chapter Machine parameters Output 2 Status output This output is used to indicate the current status of the machine How the output is controlled is adjustable with configuration parameter 12 see chapter Configuration parameters It can be used to indicate a drying cycle is busy to indicate a cycle has been finished or to indicate an alarm is active A combination of these states is also possible Output 3 Blower cleaning signal This output is activated every time the start button is pushed If the start button is pushed the output is activated for the time adjusted in machine parameter 31 see chapter Machine parameters Usually this output is connected to an air blast signal to clean the blower Output 4 Blower WYE switch In large machines with large blower motors a WYE switch may be used to decrease the start up current used by the blower motor When the blower motor has to start up this output will be activated for the time adjusted in machine parameter 32 see chapter Machine parameters So use this output to switch the star delta switch Output 5 Drum motor direction left If the dryer has a reversible drum this is the output for letting the drum run in the left direction If the dryer d
56. not be visible This function is not implemented in the current version so this parameter should always have a value No 21 Coin box 1 time If a coin box is defined in the machine configuration see chapter 6 8 this parameter is used to adjust the number of minutes credit if a coin of type 1 has been deposited If no coin box is defined in the machine configuration this parameter will not be visible This function is not implemented in the current version so this parameter should always have a value of 0 22 Coin box 2 time If a coin box is defined in the machine configuration see chapter 6 8 this parameter is used to adjust the number of minutes credit if a coin of type 2 has been deposited If no coin box is defined in the machine configuration this parameter will not be visible This function is not implemented in the current version so this parameter should always have a value of 0 26 Rotation time out If a rotation sensor is defined in the machine configuration see chapter 6 8 this parameter is the time the drum is allowed to turn without a signal from the rotation sensor For example if the value of this parameter is 10 and the drum has been turning for 10 seconds without a signal from of the rotation sensor the machine will stop and display an alarm The value of this parameter is based on when the drum is running at full speed If the machine is equipped with a frequency inverter the time out value is automatically
57. o infrared sensor are installed see chapter 6 8 this parameter will not be visible and drying will always be purely time based 02 Material type This parameter can be used for purposes of defining drying programs per material type If the use of this parameter is enabled in the machine configuration see chapter 6 8 this parameter can be used to preset a drying program as a material for example cotton polyester or wool If this option is configured the machine will use pre defined automatic settings for the drying and cool down cycle If the use of this parameter is disabled it will not be visible in the menu 06 Drying time The time the drying step is activated see also parameter 1 Manual M720 Dryer controller Page 27 of 42 HW 1 00 SW 1 00 Manual revision 1 00 07 Drying temperature The target temperature for drying during the drying step If the drying time is set to 0 parameter 6 this parameter will not be visible 10 Cooldown time The maximum time the cool down step may last If the adjusted cool down temperature parameter 11 is not reached within this time the program will finish anyway 11 Cooldown temperature The target temperature in the cool down step If this temperature is reached in the cool down step the program will finish 13 Drum direction The direction of the drum during drying cool down and anti crease If a reversible drum is configured in the machine configuration see chapter 6 8 this par
58. one with the ARROW UP and ARROW DOWN buttons The maximum number of items saved is 50 The time the alarm started is shown on the right side of the upper line The lower line shows the alarm number and alarm text see chapter 7 for a complete list of all available alarms warnings and other messages The number of minutes the alarm has been active is displayed on the right side of the lower line The maximum value is 240 When an alarm is active for longer that 240 minutes or 4 hours the controller will stop counting The minimum time is 1 minute If an alarm is active for less than 1 minute the number of minutes will be set to 1 anyway If the alarm is still active a will be shown instead of a value In order for the alarm history list work properly it is important that the controller date and time are set to the correct values Chapter 6 6 1 describes how to the correct date and time Manual M720 Dryer controller Page 34 of 42 HW 1 00 SW 1 00 Manual revision 1 00 6 8 Edit machine configuration The machine configuration is a list of parameters which can be adjusted to set up the available options of the machine Because these parameters influence the way the machine works and because setting the wrong values can cause a complete machine stop these parameters are only accessible with the highest password level Usually these parameters are adjusted once after installing the machine If the configuration has been set up properly during
59. or is opened the cycle will stop and message 13 will be displayed If a cycle is finished after drying and cooling down and the door is opened the controller will be ready for a new cycle Input 2 Filter door open This input should be on if the filter door or drawer is closed If the filter door or drawer is opened message 12 will be displayed If the dryer was in a drying cool down or anti crease cycle this cycle will be stopped After closing the filter door or drawer again the cycle may be restarted with the start button on the panel Input 3 Air flow switch To detect if the blower creates a sufficient air flow an air flow switch is available This air flow switch should be in the off position when the dryer blower is off When the blower starts the air flow switch should go to the on position after the blower has created sufficient air flow At the moment the dryer is started the control checks if the air flow switch is in the off position If not message 14 will be displayed After the blower has been started the air flow switch must go to the on position within an adjustable delay machine parameter 33 see chapter Machine parameters If the air flow switch isn t in the on position in time the dryer will be stopped again and message 14 will be displayed Because of fan inertia the air flow switch will not be in the off position directly after the output for the blower is stopped This means that if
60. re are parameters which can be adjusted specifically for a program so a program can be set up to process a specific material These parameters are the so called program parameters The machine parameters are general parameters which are always used regardless of the active program Configuration parameters are parameters which describe the options in the machine and are typically set by the manufacturer Program parameters and machine parameters can be accessed via the Edit parameter menu item in the main menu Configuration parameters can be accessed via the separate item Edit configuration parameters in the main menu The Edit parameter menu is also used to change the name of a program If in the main menu the item Edit parameter menu is selected this menu will be activated In this menu an item can be selected with the ARROW UP and or ARROW DOWN button Confirming the choice of an item must be done by pressing the ENTER button 6 4 1 Edit program parameters The program parameter list is a list of parameters which can be adjusted to set up a specific program The parameters in this list are only used in the current program To edit program parameters password level 1 1234 is required In the edit program parameters screen another parameter can be selected with the arrow buttons up and down A value can be changed with the plus and minus buttons or with the numeric buttons
61. rum has only one direction this is also the output for letting the drum run although the motor can also be connected together with the blower to output 6 in this case The presence or absence of a reversible drum can be indicated with configuration parameter 7 see chapter Configuration parameters Output 6 Drum motor direction right If the dryer has a reversible drum this is the output for letting the drum run in the right direction The presence of a reversible drum can be indicated with configuration parameter 7 see chapter Configuration parameters Output 7 Blower The output of the blower motor This output will be continuously on when a drying or cool down cycle is busy and the dryer is running This output can also be used to connect the drum movement in case the drum isn t reversible Manual M720 Dryer controller Page 12 of 42 HW 1 00 SW 1 00 Manual revision 1 00 Output 8 Heating The output for heating If the machine is running a temperature control function will decide if heating is necessary depending on the adjusted goal temperature and the current temperature s If heating is necessary the output will be on otherwise it will be off 2 4 Replacing the battery In chapter 2 1 a picture can be seen where the location of the battery is indicated The battery is a CR2016 type 3 Volt Replacing the battery should be done with the power switched on If power is switched off and the battery is taken out
62. ryer controller Page 35 of 42 HW 1 00 SW 1 00 Manual revision 1 00 Value 1 Output on when a program is finished If a program has been finished the output will be switched on and will stay on until the door is opened or until the program cycle is stopped by pushing the stop button twice Value 2 Output on when the machine is stopped because of an alarm while a drying cycle or cool down cycle was active Value 3 Output on when a program is finished see value 1 or when an alarm is active during a program cycle see value 2 16 Coin box present This parameter indicates if the machine is equipped with a coin box If so machine parameters 20 21 and 22 can be adjusted to set up the machine for working with a coin box This function is not implemented in the current revision of the controller so always set this parameter to No 17 Rotation sensor This parameter indicates if the machine is equipped with a rotation sensor If so the rotation sensor should be connected to input 7 Please note that the rotation sensor must be a 24VDC sensor as the use of 24VAC sensors is not possible If this parameter is set to Yes the machine will monitor the sensor when the drum is running If the drum is running and the rotation sensor has not been detected for a given time interval see 6 4 3 item 26 the machine will be stopped and an alarm will be displayed 20 Jog buttons This parameter indicates the presence of jog buttons If set
63. s connected this input should be connected to 24V so it is always in the on state Input 10 Emergency stop and safety switches If an emergency stop switch and other safety switches are separately connected to the controller input 10 should be used for this purpose The controller will continuously check input 10 and if the input is in the off state message 1 will be displayed If the emergency stop switch and other safety switches are not separately connected this input should be connected to 24V so it is always in the on state Input 11 Error frequency inverter This input is used in case the drum motor is controlled by a frequency inverter see chapter Configuration parameters parameter number 8 The controller will start to check the input about 3 seconds after the drum motor is started If the drum motor has been running for 3 seconds and this input is in the off state message 3 will be displayed If the inverter error contact is not used this input should be connected to 24V so it is always in the on state Input 12 Jog left button This input is used to connect a jog button Use configuration parameter 20 to indicate the presence of jog buttons Jogging of the drum can be done in case the machine isn t running the door is closed and the emergency stop isn t active When input 12 is in the on state the output for drum left direction will be activated Input 13 Jog right button See input 12 but the
64. the counters of the current active program will be displayed On the 1 line the number and name of the program can be seen The 2 line has the name of the counter followed by the value of the counter With the PLUS and MINUS buttons the counters of the next and previous program can be viewed Scrolling through the available counters per program is done with the ARROW UP and ARROW DOWN buttons There are 2 different counters Number of batches The number of batches processed in this program since the last reset Running minutes The number of minutes a program cycle has been active using this program since the last reset Manual M720 Dryer controller Page 25 of 42 HW 1 00 SW 1 00 Manual revision 1 00 Resetting the counters of a program can be done by pushing the CLEAR button SHIFT button and ENTER button Depending on the adjustment in machine parameter 16 the controller may ask for a password Password level 1 is necessary to be able to reset the counters of a program If the clear button is pushed and the password level is sufficient all counters of this program will be set to 0 6 3 2 Counters per day With the counter set Counters per day the user can read how many batches and how many operating minutes have been done on a certain day The controller saves the production data of the last 50 days the machine has been used After 50 days the oldest record will be deleted and replaced by a record of the current date If in th
65. the stop button is pushed and the start button is pushed directly after that message 14 can be displayed because the air flow switch hasn t reached the off position yet Input 4 Input overload This input should be used to connect all available motor overload protectors The protectors should be connected in series so that the input is on when no overload protection is active The controller continuously checks this input and if the input is off message 2 is displayed Input 5 Input coin box 1 Not implemented yet Is reserved for future purposes to receive a signal that a coin of type 1 has been deposited Input 6 Input coin box 2 Not implemented yet Is reserved for future purposes to receive a signal that a coin of type 2 has been deposited Input 7 Rotation sensor This input is used to connect a drum rotation sensor If the presence of a rotation sensor is configured see chapter Configuration parameters parameter number 17 the controller checks this input when the drum is running This means that if the drum is running the rotation sensor input should go from the off to the on state on a regular basis The maximum time it may take for the rotation sensor to be detected is adjustable with machine parameter 26 see chapter Machine parameters If the drum speed is controlled by inverter and the analogue output of the controller the time out duration is Manual M720 Dryer controller Page 10 of 42 HW 1 00 S
66. ushing the CLEAR button SHIFT button and ENTER button Password level 2 is necessary to be able to reset the total counters If the clear button is pushed and the password level is not sufficient the controller will first ask for a password If the password level is sufficient all total counters will be set to O 6 3 4 Non resettable counters With the counter set Non resettable counters the user can see how many batches and running hours the controller has done since it was fabricated Also the maintenance request counter can be viewed in this list see machine parameter 5 and chapter 6 6 4 With the ARROW UP and ARROW DOWN buttons one can scroll through the available counters In this case there are 3 different counters Number of batches The number of batches processed in total since fabrication Running hours The number of hours the machine has been running since fabrication Maintenance cycles The number of batches still to do until a maintenance request will be done see also machine parameter 5 and chapter 6 6 4 Manual M720 Dryer controller Page 26 of 42 HW 1 00 SW 1 00 Manual revision 1 00 As the name suggests non resettable counters cannot be reset Also they are saved in EEPROM memory and not in battery backed up memory This means that unlike the other 3 counter sets these counters will not be lost in case the battery is empty or removed 6 4 Edit parameter menu The controller has 3 sets of parameters The
67. version of the manual is being used as a reference This information must also be provided with each support request Manual M720 Dryer controller Page 36 of 42 HW 1 00 SW 1 00 Manual revision 1 00 7 Alarms If the machine detects an alarm or a warning a message will be displayed on the 2 ine of the overview screen In some cases the numeric display above the graphical display will also blink with the alarm number Alarms can be reset with the start button Only one alarm is reset at a time so if multiple alarms are activethe start button must be pushed once for each alarm The alarms are the messages with number 1 to 20 Warnings can also be reset with the start button but will also automatically reset if the cause is solved The warnings are the messages with number 21 until 30 Status messages often do not require action If a status message requires action this is described in the explanation of the message The status messages are the messages with number 31 until 40 All alarms warnings and messages which occurred can be checked in the alarm history screen see chapter 6 7 The following alarms warnings and messages can be displayed 001 Emergency stop The input for the emergency stop and or safety switches input 10 is or has been in the off state This means the emergency stop has been pushed or one of the safety switches has been activated 002 Overload protection The input for the overload contacts input
68. verview screen the message delayed start in will be displayed followed by the time until the machine will start in HH MM SS format The dryer will count down until the delayed start time displayed is 0 and then it will start the selected program For safety reasons the beeper will sound 5 seconds before the machine starts If delayed start is activated and a program cycle is started manually the delayed start will be cancelled Cancelling the delayed start can also be done with the STOP button 6 3 Counter menu If the item Counter menu is chosen from the main menu the screen with the counter menu will be displayed In this menu an item can be selected with the ARROW UP and or ARROW DOWN button Confirming the choice of an item must done with the ENTER button The M720 dryer controller has 4 sets of counters The first set is called Counters per program Every drying program has its own counters The second and third set are for a counter set per day Counters per day and counter set with totals of all programs and all days Counters in total The fourth set is a non resettable counter set used to read counters processed since the controller was fabricated 6 3 1 Counters per program With the counter set Counters per program the user can read how many batches and how many operating minutes have been done in a certain program If the item Counters per program is chosen from the counter menu
69. witch to start the blower motor this parameter is the delay for switching the blower star delta switch from on to off after restarting the blower For more details see chapter 2 3 2 output 4 33 Del check airflow When a program is started the controller will check if the airflow switch input 3 is in the off position After that the blower will be started After starting the blowers the airflow switch should go to the on position within a given period otherwise an alarm will be displayed This parameter is the delay interval between the moment the blower starts and the moment the airflow switch should be in the on position Manual M720 Dryer controller Page 31 of 42 HW 1 00 SW 1 00 Manual revision 1 00 6 5 Test program menu To be able to track malfunctions and to check correct functioning of all inputs and outputs the M720 controller is equipped with various test functions These test functions can help service staff to find malfunctioning inputs or outputs faster If the item Test program menu is selected from the main menu this menu will be activated In this menu an item can be selected with the ARROW UP and or ARROW DOWN button Confirming the choice of an item must done with the ENTER button 6 5 1 View status of inputs In this screen all available inputs can be monitored When the screen is activated the module number will be set to 0 Module 0 is the controller itself If extension boards are connecte

Manual dryer controller HW100 SW100 MR100

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