USER S OPERATING MANUAL FOR PID DIGITAL TEMPERATURE CONTROLLER

Transcription

1 USER S OPERATING MANUAL FOR PID DIGITAL TEMPERATURE ONTROLLER (Mdels: AI 7 / 78 / 77 / 7 / 76) (8 X 8) (8 X 6) (7 X 7) (6 X 8) (6 X 6) EIFIATIONS : -. TYPE : - Digit 7 segment LED (RED) Mdel n. Display height STATUS LED S. INPUT Sensr input Range Sensr Type Fe-K(J) T/ r-al(k) T/ Pt- (RTD) Pt- (RTD.) : OP : Main ntrl Output : Alarm Status : J/K/Pt- : Refer belw Table. Range Reslutin Sampling Time : msec. Reslutin : J fr T : Built in autmatic LW fr Pt- : Built in upt 8E max. Digital Filter : t Sec.. RELAY OUTPUT ntact type ntact Rating Life expectancy Islatin. SSR DRIVE OUTPUT Drive apacity Islatin : N/O, M, N/ : VA r VD : >,, peratins : Inherent : ma. : Nn-Islated.. FUNTION Output : Main ntrl utput Output : Prgrammable ) Auxiliary cntrl ) Alarm ntrl Actin : ON-OFF/T.P (Select) ntrl Mde : Heat/l (Select) mpliance : ENVIRONMENTAL Operating Range Strage Humidity 7. POWER Supply Vltage nsumptin 8. PHYSIAL Husing Mdel n. Weight (gms.) AI-7 AI-78 AI-77 AI-7 AI ~ 76 - ~ - ~ -. ~.. : ~, ~% Rh : 8% Rh (Nn-cndensing) : ~7VA, /6Hz. : W Maximum. Accuracy ± ±. : ABS Plastic AI-7 AI-78 AI-77 AI-7 AI-76 } SAFETY INSTRUTION : This cntrller is meant fr temperature cntrl applicatins. It is imprtant t read the manual prir t installing r cmmissining f cntrller. All safety related instructin appearing in this manual must be fllwed t ensure safety f the perating persnnel as well as the instrument. GENERAL The cntrller must be cnfigured crrectly fr intended peratin. Incrrect cnfiguratin culd result in damage t the equipment r the prcess under cntrl r it may lead persnnel injury. The cntrller is generally part f cntrl panel and in such a case the terminals shuld nt remain accessible t the user after installatin. MEHANIAL The ntrller in its installed state must nt cme in clse prximity t any crrsive/cmbustible gases, caustic vaprs, ils, steam r any ther prcess by-prducts. The ntrller in its installed state shuld nt be expsed t carbn dust, salt air, direct sunlight r radiant heat. Ambient temperature and relative humidity surrunding the cntrller must nt exceed the maximum specified limit fr prper peratin f the cntrller. The cntrller in its installed state must be prtected against excessive electrstatic r electrmagnetic interferences. Ventilatin hles prvided n the chassis f the instrument are meant fr thermal dissipatin hence shuld nt be bstructed in the panel. ELETRIAL The cntrller must be wired as per wiring diagram & it must cmply with lcal electrical regulatin. are must be taken nt t cnnect A supplies t lw vltage sensr input. ircuit breaker r mains s/w with fuse (7V/A) must be installed between pwer supply and supply terminals t prtect the cntrller frm any pssible damage due t high vltage surges f extended duratin. ircuit breaker and apprpriate fuses must be used fr driving high vltage lads t prtect the cntrller frm any pssible damage due t shrt circuit n lads. T minimize pickup f electrical nise, the wiring fr lw vltage D and sensr input must be ruted away frm high current pwer cables. Where it is impractical t d this, use shielded grund at bth ends. The cntrller shuld nt be wired t a -Phase supply with unearthed star cnnectin. Under fault cnditin such supply culd rise abve 6 VA which will damage the cntrller. The Electrical nise generated by switching inductive lads might create mmentary Fluctuatin in display, alarm latch up, data lss r permanent damage t the instrument. T reduce this use snubber circuit acrss the lad. It is essential t install a ver Temp. Prtectin device t avid any failure f heating system. Apart frm spiling the prduct, this culd damage the prcess being cntrlled. Dcument Name : OIM AI-7X (Ver.) Page f 6

2 AUTION: T prevent the risk f electrical shck, switch ff the pwer befre making/remving any cnnectin r remving the cntrller frm its enclsure. MEHANIAL INSTALLATION The label n the cntrller identifies the serial number, wiring cnnectins and batch number. OVER ALL DIMENSIONS & PANEL UT OUT (IN MM) MODEL:-AI-7/77/7 TABLE : A MODEL : AI - 78 A B D H E E PANEL UTOUT G PANEL UTOUT F F Mdel Dim AI-7 8 AI-77 7 AI-7 6 AI-78 8 AI-76 6 A B D E F G H B MODEL : AI - 76 D H G INSTALLATION GUIDELINES A B D H E PANEL UTOUT G F. Prepare the cut-ut with prper dimensin as shwn in figure.. Remve clamp frm cntrller. Push the cntrller thrugh panel cut-ut and secure the cntrller in its place by tightening the side clamp. ELETRIAL INSTALLATION The electrical cnnectin diagram is shwn n the cntrller enclsure as shwn belw L NNO M N 6 NO M N L N NO M N NO M N L N NO M N NO M N 6 L NNO M N NO M N AI - 7 AI - 77 AI - 7 AI - 76/78 FRONT PANEL LAYOUT OP AI-7 OP AI-77 OP AI-7 OP AI-76 AI - 7 RE 6 AI - 77 RE 6 AI - 7 RE 6 RE 6 AI - 76 NO. NAME FUNTION OP AI - 78 RE 6 AI-78 OP Glws when OP is ON & flashes when delay time (dly) is in peratin (if selected LED mde is ON-OFF). Glws when is ON & flashes when alarm cnditin persists even after LED acknwledged. r delay time (dly) is in peratin(if selected mde is ON-OFF). It will display Measured value f selected input r Errr massages. (Main set pint) / (Aux/Alarm) set value in run mde. Parameters Value/cde in prgram mde. Fr prgramming. T access ntrl mde. T access nfiguratin mde alng with UP key. T scrll the parameter & t stre its KEY value. T increase/alter parameter value in prgram mde. T Enter in UP cnfiguratin mde (with key). T acknwledge Alarm. T enter in KEY tune mde (with DOWN Key). DOWN KEY T decrease / alter parameter value in prgram mde. T enter in tune mde (with UP Key). Dcument Name : OIM AI-7X (Ver.) Page f 6

3 POWER UP: At pwer n, fllwing sequence will be prmpted n the display fr sec. till it reaches t Hme display mde. PROGRAMMING ONTROL POINT POINT MODEL VERSION HOME USER LIST : T access the user list Press & Release key nce. (All fllwing selected parameter s cde shwn in shaded will be displayed fr sec. fllwed by their values / ptins). RANGE DESRIPTION LL ~ HL User can change the value using UP/ DOWN keys. Hlding the key will change the value at a faster rate. Press key t stre the desired value and mve n t the next parameter. This parameter will be prmpted if Output is cnfigured as... LL ~ HL Either abslute auxiliary cntrl r as an alarm (High/Lw) mde. - t Either deviatin auxiliary cntrl r as a deviatin alarm mde. t As a band alarm. ONTROL LIST : T enter in this mde press & DOWN key simultaneusly fr sec. User can then set the cntrl parameters. (All fllwing selected parameter s cde shwn in shaded will be displayed fr sec. fllwed by their values / ptins) RANGE DESRIPTION LOK ODE ~ Set this parameter t (Default LOK ODE) t access ntrl List. User has a chice t set different Lck de via USER LOK ODE in nfig. List. Prprtinal Band Integral Time Derivative Time ycle Time OUTPUT POWER LIMIT TUNE OFF ntrl Hysterisis Delay Hysterisis Delay. t. t Sec. t Sec.. t. Sec.. % TO. % % t % t t Sec. t t Sec. This parameter will be prmpted nly if selected cntrl actin is PID. It sets bandwidth ver which the utput pwer is adjusted depending upn the errr (SV-). The value f this parameter is autmatically set by Aut tune functin. This parameter will be prmpted nly if selected cntrl actin is PID. It sets the time taken by PID algrithm t remve steady state errr. Value f this parameter is autmatically set by Aut Tune functin. If set t, this functin will be disabled. This parameter will be prmpted nly if selected cntrl actin is PID. It defines hw strngly the ntrller will react t the rate f change f. Value f this parameter is autmatically set by Aut Tune functin. If set t, this functin will be disabled. This parameter will be prmpted nly if selected cntrl actin is PID. User can set this value based n prcess being cntrlled & type f Output being selected. Fr Relay O/P, cycle time shuld be mre sec & fr SSR O/P, cycle time shuld be less than sec. This parameter will be prmpted nly if selected cntrl actin is PID. This parameter will decide the maximum utput pwer in % applied t the lad This parameter will be prmpted nly if selected cntrl actin is PID. This parameter allws the User t carry ut Aut Tuning functin belw the set pint. (If Tune ffset is % tuning will be carried ut at % f the set pint and if % tuning will be carried ut at % f the set pint.) This parameter will be prmpted nly if selected cntrl actin is ON-OFF. It sets the dead band between ON & OFF switching f the Output. Larger value f hysterisis minimize the number f ON-OFF peratin f lad. This increases life f actuatrs like cntactrs but als prduces large errrs (between & SV). This parameter will be prmpted nly if selected cntrl actin is ON-OFF. It sets the main utput restart time where O/P nce turned OFF will turn ON nly after restart time, regardless difference between & in Heat r l mde. If set t '', O/P will be switched withut delay. Als, Delay will be applicable in case f every pwer ON. This parameter will be prmpted nly it selected cntrl mde fr utput is auxiliary cntrl r an alarm. The value f this parameter sets the dead band between n and ff switching f utput lad. This parameter will be prmpted nly if utput is cnfigured as an Auxiliary cntrl utput. In this mde, O/P nce turned OFF will restart nly after set time regardless f the difference between and. Time delay is settable up t secnds. If time delay is set t, there is n delay between utput switching.. Sec. Sec. 6. Sec. %. %. Sec. Sec. Dcument Name : OIM AI-7X (Ver.) Page f 6

4 ONFIGURATION LIST : () T enter in this mde, Press and hld & UP key simultaneusly fr sec. () Press UP r DOWN key t scrll between parameter ptins. () Press key t stre the current parameter & mve n t the next parameter. (All fllwing selected parameter s cde shwn in shaded will be displayed fr sec. fllwed by their values / ptins). DESRIPTION LOK ODE Set this parameter t (Default LOK ODE) t access nfig. List. User has a chice t set different Lck de between t via USER LOK ODE in nfig. List. This parameter value is set accrding t the type f sensr (Thermcuple r RTD input) cnnected t the cntrller's input terminals. INPUT TYPE Sensr Type Fe-k(J) T/ r-al(k) T/ Pt-(RTD) Range ~ 76 - ~ - ~ Reslutin Accuracy } ± J Pt-(RTD.) -. ~.. ±. LOWER LIMIT HIGHER LIMIT PROESS VALUE OFF INPUT FILTER Sets the minimum limit fr set pint adjustment. It can be set frm minimum specified range f selected sensr t HL value. Sets the maximum limit fr set pint adjustment. It can be set frm LL value t maximum specified range f selected sensr. Functin f this parameter is t add/subtract a cnstant value t the measured t btain final fr cntrl applicatins. This parameter value can be altered : (i) T cmpensate fr knwn thermal gradient. (ii)t match the display values with anther recrder r indicatr measuring the same. The cntrller is equipped with an adaptive digital filter which is used t filter ut any extraneus pulses n the. The filtered Value is used fr all dependent functins. If the signal is fluctuating due t nise, increase the filter time cnstant value.. ONTROL MODE FOR OUTPUT User can select between ON-OFF r T.P actin algrithm t be adpted fr utput. T.P ONTROL LOGI FOR OP Oversht ntrl pint RAMP RATE This parameter will be prmpted nly if selected cntrl mde is ON-OFF. User can select heating lgic in which OP will remain ON till <. ( increases when utput is ON.) This parameter will appear nly if selected cntrl mde is ON-OFF. User can select cling lgic in which OP will remain ON till >. ( decreases when utput is ON.) This parameter will be prmpted nly if selected cntrl actin is PID. Setting this parameter n higher side will prprtinally slws dwn the rate f rise f t minimize versht (this may cause delay t reach ). Disabling r Setting this parameter n lwer side will prprtinally increase the rate f rise f ( which may cause versht). Disable this ptin if delay is nt required t reach. (This may cause versht w.r.t. ) User can set the desired RAMP rate in USER list. The RATE parameter will nt be prmpted in USER list. HEAT % DSBL OUTPUT FUNTION This parameter allws the User t select utput as an Auxiliary cntrl. Fr ptins refer Table. This parameter allws the User t select utput as an Alarm cntrl. Fr ptins refer Table. AUX. ONTROL Dcument Name : OIM AI-7X (Ver.) Page f 6

5 POINT USER LOK ODE DESRIPTION This parameter allws the user t edit parameter in the USER list. Setting this parameter t ENBL will allw the user t view as well edit the parameter in USER list. This parameter allws the user t edit parameter in the USER list. Setting this parameter t DSBL will nt allw the user t view as well edit the parameter in USER list. Default USER LOK ODE is t access ntrl & nfiguratin List. User has a chice t set its wn USER LOK ODE between t, this is t prevent unauthrized access f ntrl & nfiguratin List. DSBL TABLE : Belw listed ptins will appear nly if is selected as an Auxiliary cntrl mde. (All fllwing selected parameter s cde shwn in shaded will be displayed fr sec. fllwed by their values / ptins) OUTPUT MODE OUTPUT LOGI DESRIPTION This parameter will be prmpted nly if OUTPUT is selected as an Auxiliary cntrl utput. In this mde, User can set value independently. The instrument wrks as -Set pint ntrller. This parameter will be prmpted nly if OUTPUT is selected as an Auxiliary cntrl utput. In this mde, User can set value which is always related t. User can set value with the deviatin f ± w.r.t. User can select heating lgic in which will remain ON till <. ( increases when utput is ON.) User can select cling lgic in which will remain OFF till <. ( decreases when utput is ON.) Abs Heat TABLE : Belw listed parameters will appear nly if OUTPUT is selected as mde. In mde, ntrller cntinuusly cmpares with either (fr Deviatin r Band alarm) r an independent (fr prcess high and prcess lw Alarm). Alarm will ccur when falls utside the set Alarm limits. Als, will energize r de-energize under Alarm cnditin as per the Alarm lgic(al.lg) selected. HYS in ntrl list decides when t switch OFF the Alarm. Instrument supprts fur types f Alarm as described belw : - (All fllwing selected parameter s cde shwn in shaded will be displayed fr sec. fllwed by their values / ptins) DESRIPTION Lw Alarm : activates when <. OUTPUT- ON OUTPUT- OFF OUTPUT- OFF OUTPUT- ON High Alarm : activates when >. TYPE OUTPUT- OFF OUTPUT- ON OUTPUT- ON OUTPUT- OFF Deviatin Alarm : activates when exceeds ± set deviatin value. OUTPUT OFF OUTPUT ON OUTPUT ON OUTPUT OFF Band Alarm : activates when falls utside the band w.r.t. in either directin. OUTPUT ON OUTPUT OFF OUTPUT ON OUTPUT OFF OUTPUT ON OUTPUT OFF DEVIATION Dcument Name : OIM AI-7X (Ver.) Page f 6

6 LOGI DESRIPTION If this parameter is set as Direct, Relay/SSR energizes under Alarm cnditin & remains De-energized therwise. Direct setting is generally used fr Audi/Visual Alarm Output. If this parameter is set as Reverse, Relay/SSR De-energizes under Alarm cnditin & remains energized therwise. Reverse setting is generally used fr tripping the prcess under Alarm cnditin. DIRET INHIBIT This parameter can be used t inhibit (suppress) the Alarm activatin upn pwer-up cnditins by setting the parameter value t YES. Frm Pwer-up, the Alarm system remains disabled until is fund with in the limits. If Alarm activatin is desired even under Pwer-up cnditin, Set this parameter valuet NO. NO Once Alarm is activated, user has fllwing three ptins t de-activate it. When falls within the prgrammed limits, Alarm will be de-activated autmatically. AK. Once Alarm is activated, it remains activated until manually acknwledged by UP key. AUTO Once Alarm is activated, it can be de-activated either by pressing UP key r when falls within the alarm limits. AUTO TUNING MODE : Tenterinthismde,Press&hldUP&DOWNkeytgetherfrminimumsec. (All fllwing selected parameter s cde shwn in shaded will be displayed fr sec. fllwed by their values / ptins) DESRIPTION Aut tuning mde This functin will be executed nly if selected cntrl actin is PID. Aut-tuning functin is enabled by setting this parameter t YES. The decimal f LSB flashes till Aut tuning functin is in prgress. During Aut-tuning, ntrller learns the prcess characteristics by itself & calculates required P, I & D values. User can cancel r abrt this feature by setting this parameter t NO. NO USER GUIDE : ON-OFF ATION: In this mde, Output (Relay/SSR) remains ON till actual temperature reaches t the set pint value. On reaching, Output turns OFF & remains OFF till actual temperature drps dwn (in Heat Lgic) r raises (in l Lgic) equal t hysterisis set by user. (As shwn in Fig.. &.). TEMP ( ) HYSTRISIS AMB O/P ON OFF ON OFF ON HEAT LOGI/ON-OFF TIME TEMP ( ) AMB O/P HYSTERISIS ON OFF ON OFF ON O/P OOL LOGI / ON OFF TIME Fig:. Fig:. AUTO TUNING MODE : In this mde, ntrller learns the prcess characteristics by itself and calculates the required P, I & D values. It can be perfrmed at any time after pwer ON but, it is best t start it when the prcess is at Ambient temperature in rder t minimize versht & undersht. Aut tuning is applied in case : () Initial set up fr a new prcess. () Substantial change in frm previus aut tuning value. () ntrl accuracy is nt satisfactry. If the cntrl perfrmance by using aut-tuning is still unsatisfactry, User can apply further adjustments f P, I&D values as shwn in table. Table: Adjust Prprtinal Band Integral Time Derivative Time Symptm Slw Respnse Over Sht r Oscillatins Slw Respnse Instability r Oscillatin Slw Respnse r Oscillatin High Over Sht Slutin Decrease PB Increase PB Decrease Int Increase Int Decrease Dt Increase Dt ABBREVIATION :.A. J M LW : ntrl Actin : ld junctin cmpensatin : mmn terminal f relay : Lead wire (Length) cmpensatin N : Nrmally lse terminal f Relay NO : Nrmally Open terminal f Relay OP : Output : Output SSR T.P. T/ : Set Pint Value (Set temp.) : Slid State Relay : Time Prprtinal : Thermcuple Mfgd by : Innvative Instruments Dealer :- 8, New Snal Link Service Ind. Est. n., Link Rad, Malad (W), Mumbai - 6. Tel: -666/7. Fax: sales@innvativeinstrument.cm ; Website: innvativeinstrument.cm 6 Dcument Name : OIM AI-7X (Ver.) Page 6 f 6