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101 Basic applications mitsubishi
Welcomel ' . haslo training books. Ibis programmable conlro a.s on to t J mming sU1 , ls as walln, .r , ,m programmable controllers but U PQ ^ollcations range Itom an interesting To make the book more . | tn)cl j on a nd by application, rea (jer will ::2i::rLe ,. Tre d -— sm programmers aid, the Advanced Manual. Gpodluck with the applicationsllll MITSUBISHI Introductory Guide To Programmable Controllers- , • ' A basic introduclipir to genera 1 programmable controller principles, terminology and usegrThia&bpk is designed as a self teaching aid on the basics of ladder and instruction programming,' It includes 'self test' questions at the end of every chapter (answers providedl) so that the reader may check their level of understanding, There are also comprehensive programming examples for that final challenge. Advanced Manual - • The Advanced Manual is a new concept In learning and reference. This system is actually more like an updatable/upgradable encyclopedia of knowledge tor all users of ihe FX family of programmable controllers. The syslem is designed to provide information to a depilTnever found in any manual while substantiating theory with tested, practical examples. The Advanced Manual - the ultimate in Mftsubishi FX knowledge. Contents 1 21 Of The Best - 21 Inlioducloiy n|)|)llcnlloii3 2 Sequencing A Sequence - 7 examples of program (low contiol 3 Retentive Timers, Initial Controls And Interrupts 12 snap shots o( advanced programming techniques 4 Tones, Speeds, Feeds And Brightness - 13 examples o( what pulse control can yield 5 Data In • Data Out; Bit Devices- 7 diflerenl concepts (or a bit device 6 Data In - Data Out ; Word Devices- 8 examples of what can be achieved with word devices 7 Comparisons And Basic Event Tracking - 8 examples of checking and tracking important data ,0 Maths For Engineers - 8 calculations involving accuracy and decimals 9 Data Manipulation- i 5 examples o( some veiy advanced data handling 10 Double Trouble- 12 programs which are a liltla longer, a lltlle harder 11 Index What and where to lind it i 1 ■ s. , 'V f i : : ■ . I! 1 1 , ' <i i I'' 1 I j I' 111 - axX A small direct circuit used in a door bell application HLI rt'-W ^bt' >'• Pol awpi \ t-'. i. i I 1 1 1 » 1 1 1 1 ' t th L_X,J. SSSbt v v / s- 5d55fx DEVICE PC DEVICE DESCRIPTION PBl XOOO DOOR BELL PUSH BUTTON Bit YOOO DOOR BELL Description; The door bell 'bell', Bt.l, is only rung when the door bell push button, FBI, Is pressed. BLI will only ac- tivate (or the same period o( lima as PB1, In actual (act BL.1 is totally dependent on FBI (or its operation. 'V L- CAuKa CO" 0 A, nUu ^ c Wbt i nhn XOOd' ' ) ti v Vvx r :l i, ir When the float valve gives a signal the tank stops filling. m r. ; ' ' ' > -t ■ VL1 DEVICE PC DEVICE DESCRIPTION I t I xoud IT OAT SFNSOR FOR WAT Fit 1 LVLT. VI 1 VD03 WATER INLET VALVE Description; The natural status for an empty tank is that the float valve, Fit, 'hangs' free and the water supply valve, VLt, is open. This allows water to enter and fill the tank. As the tank becomes progressively fuil the float valve's float is raised. Eventually the float valve reaches a point where it makes a contact and hence passes a signal to X0Q3 in the PC. This then ioyaJidales the normsliy closed contact and prevents the coil Y003 from being driven. This in turn closes the valve on the.water iniel pipe. When Ihe water level lowers the float valve drops and the supply valve is re-opened. VH " ■ W'l ^ VvU-O CC ^rlXr Y o-t. X003 -If— -<Y003 liit 1.3 Combined Inputs To Cause ill® ;#! ; - •' ■ > ; ■■■ e, v^'k ■ Tliis circuit checks lha position ol a product moving along a conveyor bell. ST1 PC PC2 yS -ij ST 1 V- p Description; As the parcel moves down Ihe conveyor II passes Iwo pliolocells, F'C) and PC2. These two photocells are used to check Ihe posilion of Ihe parcel on Ihe line. When signals X002 and X003 are simullaneously received, i.e. both the pliolocells are acllvaled, Ihe operation ol stamping Ihe parcel can be successlully completed, e .g. Y002 is driven moving lite stamps ST I towards Ihe parcel. Note: The release and reset ol Ihe stamping operation Is not detailed here, _ w Vuo Tt .i(| \ DEVICE PCI PC DEVICE X002 DEscniprion POSITIOMIMQ PHOIOCELL 1 PC2 sft X003 POSITIONING PHOTOCELL 2 Y002 STAMP ACTUATOR v) < V.V Xdibz -If- X003 -<YM2> f This circuit checks to see if the bottle is upright, IS not then it is rejected from the conveyor belt. PC2 PCI ■ . ! v; pv m wm iS m ■ v.T; Site DEVICE PC DEVICE description PCI X004 PHOTOCELL SENSING THE BOTTOM OF THE BOTTLE PC 2 RMt xons YOOl PHOTOCELL SENSING 11 IF top OF Tl IF DOTI1 E REJECT RAM )escription; lS ,he bottles move down the conveyor they are ensed by two photocells, PC1 and PC2. These are irranged so that they check that the bonle .s upnghk nputs X004 and X005 are received from the iholocells. H a bottle is In any other P os,,l ° n than jpright, then photocell PC2 will not give input X005. [his means the reject ram RM1 is activated, becaus he program allows output Y001 be d . r ' v ® n di n f h U g <004 is ON and because input X005 rormally closed contact allows the output Y001 to be jriven. (Tjec^- ^ X004 X005- —11 H- -cyooiy Traffic control signals at a ticket baffler. M,:J V/i il, • If.'. »- i ■ i GO LPl 1-P3 IP4 r PX ,Vf ► . Descrlpllon; This program demonstrates an easy method ol inter- locking the outputs ol a program. This is a quick method to ensure a (actor ol safety. Where the'out- come requires a high level of safety, mechanical and/or physical interlocks should also be used. To the operation of this program; A car approaches the ticket barrier and triggers a proximity switch, PX1/2 depending on the direction 61 travel. When PX1 or 2 are triggered Inputs X001 and X002 are received by the PC. Each Input trigger^ an output, either Y001 or Y002. j J The driven output then sets the tralfic lights to allow tfie car to proceed, I.e. one lamp IndicKMes GO while a second driven from the same output signals STOP. If there are two cars simultaneously trying to use the barrier, the Interlock will ensure only ONE will pass through at any one time. This is achieved by the proximity switch triggered first 'blocking' the output driven by the second proximity switch. Quite simply the program restricts the action to "either/OR", but never bolhl DEVICE PC DEVICE DEScniPnoN PXt X001 CAR COMING INTO THE CAR PARK PX2 X002 CAR LEAVING THE CAR PARK LPl YOOI GO - ENTERING CAR LP2 STOP ■ LEAVING CAR LP3 Y002 STOP ■ ENTERING CAR IP4 GO ■ LEAVING CAR '' 1 i I (nil-,.1 '••itpn 1 i. f U" l(> . ■ n 1 !. ■ 1 l 'w ' fid') hi11 ' nl ben ii i XOfljt Y002 nv nl' ,f|u lit/ (.If? ■ J I, ,,(• i i 1 1 I xoo'2 YOOi "-{il 1 , nhijf i ■ T. - ft ■ 1 1 r-TTTrr: T" ! " iuu a n: . 1 ^ I tl a. It A e h w iii 11 ,b>u/ fl' V at/O^Tcn \ v C- 1L inir i \ <1 Mv IxA , I U ■ dvtr 0) s To Joy A Motor During maintenance, motors are positioned to allow easy access etc. The following is an example of a fine position jog control. PB1 ' F'B2- .7 nwDj r .• iy Mr • -v. - MTR1 < ■ :>> ■ \i1e tWifehU aj j VA DEVICE PC DEVICE DESCRIPTION PBl XOOS JOG MOTOR - REVERSE PB2 XOOS JOG MOTOR - FORWARD MTHI Y003 POWER MOTOR • REVERSE VOO-l POWER MOTOR FORWARD Description; ,j 1 In this case the motor to be worked on is attached to a conveyor belt. It may be required that a certain position needs to be reached to allow the removal and replacement of the belt. To position the belt correctly a fine control over the motor is required. Push buttons PB 1 (X00,5) and PB2 (X006) allow the motor to be momentarily rotated in either a reverse (Y003) or forward (Y004) motion. This is achieved by taking the push button inputs and 'pulsing'the selected output to drive the motor., ru i Using the pulse function ensures that the output is only : driven once for each press of the push button. It also means that the length of time the push button is activated has no relationship to how long the motor Is driven. By using the PIS version of the pulse instruction the drive outputs are energized immediately the push buttons input is registered. xoos X006 XOOS -if- PLS V003 xoos -H- PIS YOO-t - i! I CM .1 ^ 0 I con A common salely practice among control systarh ehglnaiariiJls to build In safety (oatures which necessitate "> the operator to be posillooed well clear o( any conlrollecl machinery. Orte o( the easiest ways to achieve this is to lorce tlie operator to perform some controlled actlbn at a remote location. Ua J> i , Ach ^I 'ALv 1 h te ; c'nc \ r V ' 't» \ ^. CONTROllEO MACHINE pn* i ^ iiif . / f'Bl I H 5 M m . ' WS v. V . , I tidH-l L i crCCenR, f *4 i) nffetti r;^ ^ r * ■ \ -f ,i ( ; w. .« ■ <. 4 Description; !:i I ' I he safety system detailed on this sheet Is knovytl by many pneumatic engineers as a "dead man's" handle. I his is a very simple yet . very eltecliva method ol control. (tie 'handle' Is used as the means of Initialing and operating the cQntrolled machine. Two push bullons are used to construct a "dead man's handle". Both ol the buttons must be pressed at the same time. The luillons are positioned in such a way as to prevent this being achieved by the use of only one hand. This Is usually achieved by placing the buttons directly op- posed on the ends of the control panel. The distance between the buttons is kept around 300 trim (12 -w incites). To prevent the operator from laniparing with the buttons, or rrgging some method by which (lie bullons can be operated by one hand, each butldn Is ;t . rgaessed below a metal cowling.(A)(lU, , W The linal effect is that the operalon.is-located In a^ position where there Is no danger. Bolh of the operators hands are 'occupied 1 conlrolllnfl the push bullons. The hands are protected by Ilia metal cowh over the push bullons and there is no easy way to modify the arrangemeril (or those special cuslomiza-! tions that operators are inclined to add. . : 1 Ctogtam 'METHOD 1' • Is a simple two bullons to acliyale, bul program 'METHOD 2' takes this one slapi lurther and requires thai the buttons are simultaneous- ly pressed. DEVICE PC DEVICE de'scription PBt XOIO LEFT HAND PUSH BUTTON PB2 XOI1 BIGHT HAND PUSH BUTTON Y005 DESIRED EFFECT MO 10 .MOIt CONTROL DEVICES FOR SIMULTANEOUS PUSH BUTTON OPERATION M T f.l/lt UMf nr.) ',n . I i)0 l' f 1 • H kiib xoti Dl. H i i . METHODi XOtO Hf— xott .1 111 PIS MOtol 1 ' 1 PLS MOM | MOID Hotl pi A I'll UTM')v { ■ t 1 . i ,|v V l ''" ■ (U 'I vlil) Vt (u!; ] \ Vbi ;Ktti pv "x et (\ \ [...]... ALT instmction toggles the status of the associated-flag,-in this case M101 Hence, pressing PB 1 once would turn Ml 01 ON undptossing PB1 u second time will turn it OFF again By using this feature normally open and closed contacts of the flag associated with the ALT instruction allow thefchoice between two 'modes' In this case when M101 is ON the fan acts in an extraction mode; because Y002 is driven,... between two 'modes' In this case when M101 is ON the fan acts in an extraction mode; because Y002 is driven, and when Ml01 is OFF the fan acts in a circulation mode; Y003 is ON, Ml 00 -IIM101 _J|_ MIOt -II— PLS M100 M101 -- I 18 €dited uuith the demo version Infix Pro PDF €ditor To remove this notice, visit: uuuuuu.iceni.com/unlock.htm VII The liming of an event can bo conlrolled from one Input,... Initialization On Power UpI ^' ^ ^■ " " ; ' >,;i • ' ■ 1 ■ r ■ i :■" In many cases a macliiiie or device will lequlra some kind 01 (otm o( Initial parameters in order that II can , enler even a very basic stale o( readiness To enter this data by hand every time would be tedious and full of r' n& "possible errors 1 ha special (lag M0002 can help In the creation ol an automatic Initialization program . Advanced Manual. Gpodluck with the applicationsllll MITSUBISHI Introductory Guide To Programmable Controllers- , • ' A basic introduclipir to genera 1 programmable . terminology and usegrThia&bpk is designed as a self teaching aid on the basics of ladder and instruction programming,' It includes 'self test' . 8 examples of what can be achieved with word devices 7 Comparisons And Basic Event Tracking - 8 examples of checking and tracking important data