a.i.tek转速表及转速传感器工作原理m_tachtrol3

4!#(42/,¸4!",% /& #/.4%.43&/2%7/2$).42/$5#4)/.-!4(%-!4)#!, &5.#4)/.33INGLE #HANNEL /PERATION$UAL #HANNEL /PERATION"I $LRECTLONAL /PERATION/540543 4(%/29 /& /0%2!4)/.(/7 4/ /0%2!4% 4(% 4!#(42/,¸ 4!#(/-%4%2 &).$).' 4(% 3#!,).' &!#4/23&INDING THE 3CALING &ACTOR &OR #OMMON !PPLICATIONS3INGLE #HANNEL AND "I $LRECTLONAL$UAL #HANNEL&INDING 4HE 3CALING &ACTOR &OR /THER !PPLICATIONS 3%,%#4).' 4(% -!4(%-!4)#!, &5.#4)/.3$%&).).' 4(% "%(!6)/2 /& 4(% /540543$ISPLAY!UTORANGLNG!NALOG /UTPUT:ERO 3CALE&ULL3COLE3ETPOLNTS3ETPOINT 4YPES3ETPOINT "EHAVIOR,ATCHLNG !UTO 2ESET3AMPLE 3ET 5PS3INGLE #HANNEL /PERATIONS$UAL #HANNEL /PERATION%.4%2).' 4(% #/.34!.43#ONTROL &EATURES4URNING /N 4HE 0OWER%NTERING 4HE 3CALING &ACTORS%NTERING 4HE &UNCTION #ONSTANT%NTERING #ONSTANTS 7HICH $EFINE /UTPUT "EHAVIOR$ISPLAY /UTPUT!NALOG /UTPUT3ETPOINT /UTPUT3ETPOINT /UTPUT34/2).' 4(% #/.34!.433%,%#4).' 4(% ).054 /04)/.3(/7 4/ ).34!,, 4(% 4!#(42/,¸ 4!#(/-%4%2 -/5.4).' 4(% ).3425-%.40!.%, -/5.4).' $)-%.3)/.3(/7 4/ ).34!,, 4(% 30%%$ 3%.3/2 3 -/5.4).' 4(% 30%%$ 3%.3/2 33%44).' 4(% #,%!2!.#%490)#!, 7)2).' #/..%#4)/.3 &/2 !) 4%+ 3%.3/23 0ASSIVE 3ENSORS!CTIVE 3ENSORS") $IRECTLONAL 3ENSORS!00%.$)8 4)-% -/$% /0%2!4)/.30%#)&)#!4)/.3).34!,,!4)/. !.$ 7)2).' 02!#4)#%3&/2 %,%#42/.)# ).3425-%.4!4)/. #/.42/,7!22!.49&/2%7/2$4HE FOLLOWING MANUAL IS WRITTEN FOR USERS OF THE 4!#(42/,¸ TACHOMETER MANUFACTURED BY !) 4EK)NSTRUMENTS 4HE MANUAL PROVIDES EASY TO FOLLOW STEP BY STEP INSTRUCTIONS FOR SETTING UP AND INSTALLINGTHE INSTRUMENT 3OME KNOWLEDGE OF ALGEBRA IS HELPFUL BUT NOT NECESSARY).42/$5#4)/.4HE 4!#(42/,¸ TACHOMETER IS AN APPLICATIONS ORIENTED SINGLE OR DUAL CHANNEL COMPUTING TACHOMETER WHICH USES THE PERIOD MODE OF FREQUENCY MEASUREMENT TIME PER EVENT5SED AS A SINGLE CHANNEL TACHOMETER THE 4!#(42/,¸ TACHOMETER MEASURES THE RATE OF INDUSTRIAL EVENTS SUCH AS THE RATE AT WHICH LIQUID IS PASSING THROUGH A PUMP OR THE RATE AT WHICH BOTTLES AREPASSING ALONG A CONVEYOR BELT 4HE TACHOMETER DISPLAYS THESE RATES IN ENGINEERING UNITS SUCH AS &03FEET PER SECOND '0( GALLONS PER HOUR 20- REVOLUTIONS PER MINUTE AND OTHER RATES5SED AS A DUAL CHANNEL TACHOMETER THE 4!#(42/,¸ TACHOMETER CAN READ TWO UNRELATED SPEEDSOR CAN COMPUTE SIX MATHEMATICAL FUNCTIONS FROM THE INPUT SIGNAL FREQUENCIES OF TWO RELATED SPEEDS)N ADDITION THE 4!#(42/,¸ TACHOMETER MAY BE USED AS A BI DIRECTIONAL TACHOMETER TO MEASURESPEED WITH DIRECTION INDICATION FROM AN !) 4EK BI DIRECTIONAL SENSOR-!4(%-!4)#!, &5.#4)/.33INGLE #HANNEL /PERATION 5SED AS A SINGLE CHANNEL INSTRUMENT THE 4!#(42/,¸ TACHOMETER CAN COMPUTE 3PEED ! OR 3PEED "$UAL #HANNEL /PERATION 5SED AS A DUAL CHANNEL INSTRUMENT THE 4!#(42/,¸ TACHOMETER CAN COMPUTE UNRELATED 3PEED ! AND 3PEED " 7HEN 3PEED !AND 3PEED " ARE RELATED THE 4!#(42/,¸ CAN COMPUTE THE FOLLOWING MATHEMATICAL FUNCTIONS! " $IFFERENCE ! "X 3LIP!! " 2ATIO" ! )NVERSE 2ATIO " !X %LONGATION!! " !VERAGE"I $IRECTIONAL /PERATION 5SED AS A BI DIRECTIONAL INSTRUMENT THE 4!#(42/,¸ TACHOMETER CAN COMPUTE ! ! OPPOSITE DIRECTION.OTE ,IKE MOST CONVENTIONAL TACHOMETERS THE 4!#(42/,¸ TACHOMETER COMESFROM THE FACTORY READY TO READ 20- FROM A SINGLE PULSE PER REVOLUTION GEAR /540543!NY OF THE MATHEMATICAL FUNCTIONS MAY BE ASSIGNED INDEPENDENTLY TOs!N , % $ $ISPLAY WHICH UPDATES EVERY SECONDSs!N OPTIONAL OUTPUT A CURRENT SOURCE EITHER TO M! OR TO M!s OR OPTIONAL 2ELAY 3ETPOINTS FORM # CONTACTS WHLCH CAN BE USED TO TRLGGER EXTERNALEVENTS SUCH AS ALARMS !LL FORMS OF RELAY LOGIC CAN BE SELECTED AND ADJUSTED )N THE FIELD4(%/29 /& /0%2!4)/.3PEED SENSORS TRANSDUCERS SUCH AS !) 4EK SERIES ( OR "( ARE PLACED NEAR FERROUS METAL TAR GETS SUCH AS GEARS 4HE SENSORS GENERATE REPEATING ELECTRICAL PULSES INPUT SIGNAL FREQUENCIES WHOSEREPETITION RATES ARE PROPORTIONAL TO THE RATES OF THE EVENT 4HE 4!#(42/,¸TACHOMETER MEASURES THESE RATES IN THE NUMBER OF PULSES PER SECOND 4HE TACHOMETER S MICROCOMPUTER ALLOWS YOU TO SCALE THE INPUT SIGNAL FREQUENCIES TO APPROPRIATE DISPLAY VALUES SELECT AND ROUTE THE MATHEMATICAL FUNCTIONS TO THE OUTPUTS AND DEFINE THE BEHAVIOR OF EACH OUTPUT &IGURE ILLUSTRATES THE FLOW OF DATA IN THE 4!#(42/,¸ TACHOMETER&IGURE $ATA &LOW $IAGRAMC5 - ADDITIONAL SCALING FACTORC12-DIGIT 1DECIMAL LOCATIONC6-ZERO SCALE C7-FULL SCALE C12-DIGIT 50-20 / 4-20 mAC8-SETPOINT C10-DIGITS 1 & 2% HYSTERESIS C12-DIGIT 2RELAY LOGICC9-SETPOINT C10-DIGITS 3 & 4% HYSTERESIS C12-DIGIT 3RELAY LOGICFUNC. K1 S.P .= DEVIATION FUNC. K2 S.P .= DEVIATION C12-DIGIT 4SER. OUTPUT INFODIGIT 1FUNCTION C11DIGIT 20=OFF 1 = A2 = B3 = A-B4 = +/- A5 = A/B6 = B/A7 = (A+B) / 2DIGIT 38 = (A+B) / Ax100DIGIT 49 = (B-A) / Ax100C1X C2&!&"C3X C4ANALOGDISPLAYSET-POINT 1SET-POINT 2SERIAL OUTPUTA RESULTB RESULT/NCE YOU HAVE SELECTED A FUNCTION FOR AND DETERMINED THE BEHAVIOR OF EACH OUTPUT YOU SET UPTHE INSTRUMENT BY ENTERING TWELVE DIGIT SIGNED NUMBERS CALLED CONSTANTS ON THE THUMBWHEELAND PUSHBUTTON SWITCHES ON THE CONTROL PANEL LOCATED BEHIND THE $OOR 4HESE CONSTANTS ARE HELD INTHE 4!#(42/,¸ TACHOMETER S ELECTRICALLY ALTERABLE READ ONLY MEMORY %!2/- AND CAN BE INDIVIDUALLY DISPLAYED AND ALTERED BY A METHOD SIMILAR TO THE SETTING OF A DIGITAL WATCH 9OU THEN MOUNTTHE INSTRUMENT INSTALL THE SPEED SENSOR S CONNECT THE SENSOR S AND THE POWER WIRING AND YOU AREREADY TO OPERATE 4HE FOLLOWING CHART DESCRIBES THE PURPOSE OF EACH CONSTANT # THRU # AND LISTS THE STANDARD CONSTANTS WHICH ARE PRESET IN THE INSTRUMENT#ONSTANT0URPOSE3TD #ONSTANTS# AND # SCALE NORMALIZE THE INPUT SIGNALFREQUENCY FROM CHANNEL !# AND # SCALE NORMALIZE THE INPUT SIGNALFREQUENCY FROM CHANNEL "# PROVIDES AN ADDITIONAL METHOD OF SCALING 7HEN # ISSET TO STANDARD CONSTANT $ISPLAY SHOWS THE COMPUTEDFUNCTION OF CHANNEL ! OR CHANNEL " (OWEVER # CANBE ALTERED TO CONVERT ONE ENGINEERING UNIT TO ANOTHERFOR $ISPLAY PURPOSES ONLY &OR EXAMPLE # CAN BE USEDTO CONFIGURE THE INSTRUMENT SO THAT 20- IS BEING COMPUTED AND &03 )S BEING DISPLAYED 4HIS )S )LLUSTRATED BY THEFOLLOWING EQUATION!RPM X # $FPMWHERE ! SCALED )NPUT SIGNAL FREQUENCY$ DISPLAY VALUE# SETS THE !NALOG /UTPUT :ERO 3CALE BY DETERMINING ATWHICH VALUE OF THE ANALOG FUNCTION # THE ANALOGOUTPUT DELIVERS OR M! TO THE LOAD# SETS THE !NALOG /UTPUT &ULL 3CALE BY DETERMINING ATWHICH VALUE OF THE ANALOG FUNCTION # THE ANALOGOUTPUT DELIVERS M! TO THE LOAD.OTE 9OU CAN MAKE THE :ERO 3CALE LARGER THAN THE &ULL 3CALE TO COMPUTE )NVERSE FUNCTIONS# DETERMINES AT WHICH VALUE OF THE SELECTED FUNCTION #SETPOINT ONE RELAY + CHANGES TO THE ALARM STATE# DETERMINES AT WHICH VALUE OF THE SELECTED FUNCTION #SETPOINT TWO RELAY + CHANGES TO THE ALARM STATE# DETERMINES THE INDEPENDENT RESET POINT FOR BOTH RELAYS(YSTERESIS4HE (YSTERESIS DEAD BAND MAY BE SPECIFIED IN#ONSTANT STEPS FROM TO OF THE SETPOINT VALUE#30 30# DETERMINES WHICH FUNCTIONS ARE SENT TO THE FOUR OUTPUTS&UNCTION4HE CALCULATED VALUES OF ! AND " SUCH AS DIFFERENCE#ONSTANT RATIO AND AVERAGE MAY BE ASSIGNED INDEPENDENTLYTO ANY OF THE FOUR OUTPUTS#$ISPLAY &UNCTION!NALOG &UNCTION3ETPOINT ) &UNCTION3ETPOINT &UNCTION.OTE !NY UNUSED OUTPUTS SHOULD BE SET TO ZERO /&& FOR FASTER RESPONSE# DETERMINES THE SPECIFIC PROPERTIES OF THE FOUR OUTPUTS/UTPUT SUCH AS ANALOG ZERO SCALE CURRENT REPORTING METHOD#ONSTANT DISPLAY DECIMAL LOCATION AUTORANGING AND RELAY LOGIC#$ECIMAL ,OCATION3ETPOINT 2ELAY ,OGIC3ETPOINT 2ELAY ,OGIC3ERIAL /UTPUT 3PECIAL /PTION!NALOG /UTPUT(/7 4/ /0%2!4% 4(% 4!#(42/,¸ 4!#(/-%4%24HIS SECTION PROVIDES YOU WITH INSTRUCTIONS FOR&INDING THE 3CALING &ACTORS3ELECTING THE -ATHEMATICAL &UNCTIONS$EFINING THE "EHAVIOR OF THE /UTPUTS%NTERING THE #ONSTANTS3TORING THE #ONSTANTS3ELECTING THE )NPUT /PTIONS&).$).' 4(% 3#!,).' &!#4/23 # 4(25 #)F YOU ARE USING THE 4!#(42/,¸ TACHOMETER AS A SINGLE CHANNEL )NSTRUMENT TO MEASURE 20-AND ARE USING A TOOTH GEAR SKIP THIS SECTION AND PROCEED TO SECTION 3ELECTING 4HE-ATHEMATICAL &UNCTIONS&INDING THE 3CALING &ACTOR FOR #OMMON !PPLICATIONS4HIS SECTION PROVIDES YOU WITH FORMULAS AND EXAMPLES FOR FINDING THE SCALING FACTOR FORREVOLUTIONS PER MINUTE 20- GALLONS PER MINUTE '0- FEET PER MINUTE &0- )NCHESPER MINUTE )0- YARDS PER MINUTE 90- )NCHES PER SECOND )03 AND FEET PER SECOND&03 &OR OTHER APPLICATIONS SEE 3ECTION "3INGLE #HANNEL AND ") $IRECTIONAL! &IND THE NUMBER OF PULSES PER REVOLUTION PPR PRODUCED BY THE GEAR OR TARGET BEING MONITORED BY THE SPEED SENSOR" #ALCULATE THE SCALING FACTOR BY APPLYING THE NUMBER OF PPR TO THE APPROPRIATE FORMULA FOR THE ENGINEERING UNITS YOU ARE DISPLAYING&OR20-THE FORMULA FOR FINDING THE SCALING FACTOR )S002 3CALING &ACTOR3UPPOSE YOU HAVE A PPR GEAR 4HE FORMULA READS3CALING &ACTOR&OR'0-THE FORMULA FOR FINDING THE SCALING FACTOR IS00' 3CALING &ACTORWHERE 00' 0ULSES 0ER 'ALLON3UPPOSE YOU HAVE A GEAR OPERATING AT 00' 4HE FORMULA READS3CALING &ACTOR&OR&0-THE FORMULA FOR FINDING THE SCALING FACTOR )SX P X $002 3CALING &ACTOR3UPPOSE YOU ARE MONITORING THE SPEED OF A MOVING CONVEYOR BELT 4O CALCULATE THE SCALING FACTOR YOU WOULD NEED TO KNOW THE DIAMETER )N FEET OF THE ROLLER TO WHICH THE GEAR IS ATTACHED AND THE THICKNESS OF THE BELT MULTIPLIED BY )F THE DIAMETER OF THE ROLLER IS FT )NCHES AND THE THICKNESS OF THE BELT )S INCH X AND THE GEAR IS PPR THEN THE FORMULA READS3EALING &ACTOR X XP ALWAYS9OU CAN IMPROVE THE ACCURACY OF THE SCALING FACTOR BY MANIPULATING THE FRACTION IN A WAY THAT USES THE FULL DIGITS THAT CAN BE ENTERED ON THE $ISPLAY )N THIS EXAMPLE THE TWO DIGIT SCALING FACTORS ARE USED TO SCALE THE CHANNEL WITH DIGITS OF ACCURACYX ÷&OR)0- 90- )03 AND&03THE FORMULAS FOR FINDING THE SCALING FACTOR ARE)0- X P X $v 3& 90- X P X $ 3&002 002 X)03 P X $v 3& &03 P X $ 3&002 0027HERE$ DIAMETER IN FEET$v DIAMETER IN INCHES3& SCALING FACTOR.OTE )N SOME APPLICATIONS THE SHAFT S SPEED YOU WANT TO READ MAY NOT BE ACCESSIBLE 9OU MAY NEED TO MOUNT THE GEAR AND SENSOR ON A SHAFT WHOSE SPEED IS PROPORTIONAL TO BUT NOT THE SAME AS THE ONE YOU WANT TO READ )N SUCH CASES YOU WILL NEED TO DETERMINE THE RATIO OF SPEEDS &OR EXAMPLE IF THE SHAFT TO WHICH YOU HAVE MOUNTED THE GEAR AND SENSOR MAKES THREE ROTATIONS FOR EVERY SINGLE ROTATION OF THE SHAFT YOU WANT TO READ THEN YOU MUST DIVIDE THE SCALING FACTOR BY$UAL #HANNEL! &IND THE NUMBER OF PULSES PER REVOLUTION 002 PRODUCED BY THE GEARS OR TARGETS BEING MONITORED BY THE SPEED SENSORS" #ALCULATE THE SCALING FACTORS BY APPLYING THE NUMBER OF 002 S TO THE APPROPRIATE FOR MULA FOR THE ENGINEERING UNITS YOU ARE DISPLAYING&OR 20- THE FORMULA FOR FINDING THE SCALING FACTOR IS002 3CALING &ACTOR3UPPOSE YOU ARE USING #HANNEL ! TO MEASURE 20- FROM A TOOTH GEAR AND #HANNEL" TO MEASURE 20- FROM A TOOTH GEAR 4HE FORMULAS READ#HANNEL ! 3CALING &ACTOR#HANNEL ! 3CALING &ACTOR4HE FORMULAS FOR '0- &0- )0- )03 AND &03 ARE GIVEN IN THE PREVIOUS SECTION FOR SINGLECHANNEL INSTRUMENTS 0LEASE BE SURE TO READ THE NOTE AT THE END OF THAT SECTION/THER !PPLICATIONS FOR 3CALING TO /THER %NGINEERING 5NITS4HE GENERAL FORMULA IS$)30,!9 6!,5%3#!,).'&!#4/2 ).0543)'.!,&2%15%.#94O SOLVE THIS PROBLEM0ICK A DISPLAY VALUE WITHIN THE RANGE OF YOUR OPERATION#ALCULATE THE )NPUT SIGNAL FREQUENCY PRODUCED BY THE SPEED SENSOR AT THE DISPLAY VALUE YOU VE PICKED&REQUENCY IS SIMPLY THE NUMBER OF ELECTRICAL hPULSESv PRODUCED BY THE SENSOR IN ONE SECOND!LL !) 4EK SENSORS PRODUCE PULSE EACH TIME A GEAR OR TARGET TOOTH PASSES IN FRONT OF THE SENSOR 9OU WIL) NEED TO CALCULATE HOW MANY PULSES PER SECOND ARE CREATED BY THE SENSOR WHENYOUR MACHINERY IS OPERATING AT THE DISPLAY VALUE YOU VE PICKED$IVIDE THE DISPLAY VALUE BY THE INPUT SIGNAL FREQUENCY3%,%#4).' 4(% -!4(%-!4)#!, &5.#4)/.3 #3ELECT THE MATHEMATICAL FUNCTIONS FROM THE MENU BELOW 9OU SELECT AND ROUTE A MATHEMATICAL FUNCTION TO AN OUTPUT BY PLACING THE NUMBER TO THE LEFT OF THE FUNCTION IN A DIGIT OF THE &UNCTION #ONSTANT # &OR A COMPLETE EXPLANATION OF HOW TO ENTER THE FUNCTIONS SEE 3ECTION-%.5&UNCTION # /&& ! " ! " ¼! ! " " ! ! "! "X!" !X!4HE MATHEMATICAL FUNCTIONS WHICH CAN BE COMPUTED IN EACH MODE OF OPERATION ARE LISTED IN 3ECTION.OTE ! " CAN BE COMPUTED BY USING A NEGATIVE SCALING FACTOR FOR THE " CHANNEL.OTE 7ITH BI DIRECTIONAL OPERATION WHEN A BIDIRECTIONAL SENSOR IS CONNECTED TO THE INSTRU MENT 3PEED ! CAN BE COMPUTED FROM ONE FREQUENCY INPUT 44, INPUT ! AND DIRECTION CAN BE COMPUTED FROM 44, INPUT " (IGH 6 INDICATES A POSITIVE DIRECTION /NLY SINGLE SPEED FUNCTIONS 3PEED ! ARE USEFUL WHEN CONNECTED IN THIS OPERATION MODE )N ADDITION CHANNEL " CAN BE CONNECTED TO ANY TYPE OF LIMIT SWITCHES WHEN USING &UNCTION ¼! .OTE 7ITH DUAL CHANNEL OPERATION WHEN RATIO AND ELONGATION FUNCTIONS ARE SELECTED&UNCTIONS AND THE RATIO OF ZERO OVER ZERO BY DEFINITION IS UNITY$%&).).' 4(% "%(!6)/2 /& 4(% /540543$ISPLAY9OU CAN PROGRAM THE $ISPLAY TO SHOW THE COMPUTED FUNCTION OF CHANNEL ! AND OR CHANNEL " AND YOU CAN CONFIGURE THE INSTRUMENT TO COMPUTE IN ONE UNIT OF MEASUREMENT AND TO DISPLAY ANOTHER BY ALTERING CONSTANT # 3EE PAGE !UTORANGING!UTORANGING REFERS TO THE MOVEMENT OF THE DECIMAL AMONG THE DIGITS ON THE $ISPLAY 9OU CAN LIMIT THE MOVEMENT OF THE DECIMAL POINT AND THEREBY DETERMINE THE SMALLEST VALUE THE $ISPLAY WILL SHOW !NALOG /UTPUT :ERO 3CALE9OU CAN DETERMINE AT WHICH VALUE OF THE ANALOG FUNCTION THE ANALOG OUTPUT DELIVERS OR MILLLAMPS TO THE LOAD7Distributed By Inc,Airpax(800) 576 -6308/airpax&ULL 3CALE9OU CAN DETERMINE AT WHICH VALUE OF THE ANALOG FUNCTION THE ANALOG OUTPUT DELIVERS MILLLAMPS TO THE LOAD.OTE 4HE M! CAN BE CONVERTED TO A TO VDC OR TO VDC SIGNAL BY PLACING A RESISTOR ACROSS THE INPUT OF THE RECEIVING INSTRUMENT WHOSE PARALLEL COMBINATION WITH THE INPUT RESIST ANCE OF THE RECEIVER IS OHMS OR OHMS RESPECTIVELY 3ETPOINTS2ELAY SETPOLNTS ARE USED TO TRIGGER EVENTS )N SOME APPLICATIONS THEY ARE USED TO TRIGGER THE ADDING OF INGREDIENTS AT SPECIFIED STAGES OF A PROCESS )N OTHER APPLICATIONS THEY ARE USED TO TRIGGER ALARM CONDITIONS &OR )NSTANCE THEY ARE USED TO TRIGGER AN ALARM CONDITION WHEN THE SPEED OF A MACHINE DROPS BELOW OR RISES ABOVE ITS NORMAL RANGE OF OPERATION 4HE FOLLOWING DIS CUSSION WILL FOCUS ON THE LATTER TYPE OF APPLICATION 3ETPOINT 4YPES4HERE ARE TWO TYPES OF SETPOINTS UNDERSPEED AND OVERSPEED 5NDERSPEED RELAYS TRIGGER EVENTS WHEN FREQUENCY DROPS BELOW THE SETPOLNT&)'52% 5.$%230%%$ 3%40/).4/VERSPEED RELAYS TRIGGER EVENTS WHEN THE FREQUENCY RISES ABOVE THE SETPOLNT&)'52% /6%230%%$ 3%40/).43ETPOINT "EHAVIOR2ELAY SETPOINTS MAY BE CONFIGURED TO EITHER ENERGIZE OR DE ENERGIZE ABOVE AND BELOW THE SET POINT VALUE 4HUS FOR EACH RELAY SETPOINT YOU MUST DECIDE WHAT TYPE YOU WANT AND HOW YOU WANT THE RELAY TO BEHAVE /VERSPEED RELAYS WHICH ENERGIZE ABOVE THE SETPOINT AND UNDER SPEED RELAYS WHICH ENERGIZE BELOW THE SETPOINT ARE CALLED .ON &AILSAFE /VESPEED RELAYS WHICH DE ENERGIZE ABOVE THE SETPOINT AND UNDERSPEED RELAYS WHICH DE ENERGIZE BELOW THE SETPOINT ARE CALLED &AILSAFE &AILSAFE PROVIDES YOU WITH A WARNING IN THE EVENT THAT A POWER FAILURE OCCURS WHICH THE MACHINE IS OPERATING WITHIN THE .ON !LARM 3AFE AREA OF OPERATION8Distributed By Inc,Airpax(800) 576 -6308/airpax,ATCHLNG !UTO 2ESET9OU CAN CONFIGURE THE RELAYS AS EITHER ,ATCHING OR !UTO 2ESET ,ATCHING RELAYS REMAIN IN AN ALARM CONDITION AND MUST BE RESET MANUALLY BY USING THE PUSHBUTTON LOCATED BEHIND THE INSTRUMENT S $ISPLAY DOOR &AILSAFE !UTO 2ESET RELAYS AUTOMATICALLY ENERGIZE WHEN THE MACHINE RETURNS TO ITS .ON !LARM STATE OF OPERATION 9OU CAN PROGRAM THE RELAY TO AUTOMAT ICALLY RESET AT SETPOINT OR YOU CAN PROGRAM IT TO RESET WITH A (YSTERESIS A DEAD BAND 4HAT IS YOU CAN PROGRAM IT TO RESET WITHIN A SPECIFIED RANGE OF THE SETPOINT (YSTERESIS PREVENTS hCHATTERv THE CLICKING ON AND OFF OF THE RELAY AS FREQUENCY HOVERS AROUND THE SETPOINT VALUE (YSTERESIS IS SPECIFIED AS A PERCENTAGE OF THE SETPOINT VALUE 4HE POSITION OF HYSTERESIS ABOVE OR BELOW THE SETPOINT IS DETERMINED BY THE RELAY TYPE /VERSPEED RELAYS HAVE HYSTERESIS BELOW THE SETPOINT 5NDERSPEED RELAYS HAVE HYSTERESIS ABOVE THE SETPOINT &IGURE SHOWS AN OVERSPEED RELAY WITH HYSTERESIS BELOW SETPOLNT,OSS OF INSTRUMENT POWER WILL CAUSE A LATCHING RELAY TO RESET IN THE ABSENCE OF AN ALARM CONDITION&)'52% /6%230%%$ 2%,!9 7)4( (934%2%3)3 "%,/7 3%40/).4&IGURE ILLUSTRATES THE BEHAVIOR OF THE SETPOINT RELAYS&)'52% 3%40/).4 2%,!9 "%(!6)/2%N ENERGIZE20 RESETPOINT ABOVE $% %. DE ENERGIZE(93 HYSTERESISBELOW9Distributed By Inc,Airpax(800) 576 -6308/airpax5SE 4ABLE TO SELECT THE BEHAVIOR AND TYPE OF RELAY SETPOINT 4HE NUMBERS IN THE TABLE DENOTETHE NUMBERS PLACED IN THE SECOND DIGIT OF #ONSTANT #FOR SETPOINT AND THE THIRD DIGIT OF #ONSTANT # FOR SETPOINT3%40/).4 490%4!",% 2%,!9 3%40/).4 "%(!6)/2 !.$ 490%3AMPLE 3ET UPS 3INGLE #HANNEL /PERATION3UPPOSE YOU ARE MEASURING THE RATE AT WHICH PAPER IS PASSING ALONG A BED ROLL THE DIAMETER OF THE ROLLER PLUS TWICE THE THICKNESS OF THE CONVEYOR BELT IS EQUAL TO INCHES 4HE SENSOR IS READ ING FROM A TOOTH GEAR 9OU WANT THE TACHOMETER TO #OMPUTE 3PEED ! IN 20-3& ## 002 # #AND #ARE NOT ADJUSTED# #AND #ARE NOT ADJUSTED3END #OMPUTED &UNCTION 3PEED ! TO !LL /UTPUTS3PEED ! ON &UNCTION #HART #8 X DENOTES UNUSED DIGIT(AVE $ISPLAY 3HOW &0- WITH !UTORANGING TO 4WO $ECIMALS RIGHT ONLY! X #$ISPLAY VALUE 20- X &02 &0-10/VERSPEED HYSTERESIS BELOWSETPOINTDE ENERGIZE ABOVESETPOINTENERGIZE ABOVESETPOINTDE ENERGIZE ABOVESETPOINTENERGIZE ABOVESSETPOINT5NDERSPEED HYSTERESIS ABOVESETPOINT DE ENERGIZE BELOWSETPOINTENERGIZE BELOWSETPOINTDE ENERGIZE BELOWSETPOINTENERGIZE BELOWSETPOINT!UTO 2ESET &AILSAFE !UTO 2ESET .ON &AILSAFE ,ATCHING &AILSAFE ,ATCHING .ON &AILSAFES E T P O I N T B E H A V I O RDistributed By Inc,Airpax(800) 576 -6308/airpax&02 $IAMETER X P X L L IN #ONVERTED TO &EET WHERE &02 FEETPER REVOLUTION # # 8(AVE THE !NALOG /UTPUT $RIVE AN !UXILIARY M! METER WITH A RANGE OF TO L///RPMM! M!RPM RPM# # # 8'O TO AN !LARM #ONDITION WHEN THE SPEED DROPS BELOW RPM AND AUTOMATICALLY COME OUT OF !LARM WHEN IT RETURNS TO RPM 5NDERSPEED &AILSAFE'O TO AN !LARM CONDITION WHEN THE SPEED RISES ABOVE L///RPM AND AUTOMATICALLY COME OUT OF !LARM WHEN IT RETURNS TO RPM /VERSPEED &AILSAFE# # # 8 # 8AUTORANGING TO TWO DECIMALS RIGHT ONLY UNDERSPEED FAILSAFE OVERSPEED FAILSAFEANALOG OUTPUT IS M!$UAL #HANNEL /PERATION3UPPOSE YOU ARE USING THE TACHOMETER AS AN ELONGATION MONITOR IN A PAPER MILL %LONGATION IS THE CHANGE IN LENGTH OF THE PAPER AT THE OUTGOING ROLLER 4HE DIAMETER OF THE ROLLER PLUS TWICE THE THICK NESS OF THE BELT AT EACH END OF THE PROCESS IS INCHES 4HE SENSORS ARE READING FROM TOOTH GEARS11Distributed By Inc,Airpax(800) 576 -6308/airpax4HE SHAFT DRIVING THE INCOMING ROLLER IS TURNING AT RPM AND THE SHAFT DRIVING THE OUTGOING ROLLER IS TURNING AT RPM 9OU WANT THE TACHOMETER TO#OMPUTE 3PEED ! )NCOMING ROLLER AND 3PEED " OUT GOING ROLLER IN &0-3& FPM X P X $ X X002 # # # #3END THE PERCENTAGE OF ELONGATION TO $ISPLAY RATIO TO 3ETPOINTS ) AND AND 3PEED " ONLY TO !NALOG /UTPUT# X(AVE $ISPLAY SHOW &0- WITH AUTORANGING FIXED TO ONE DECIMAL PLACE# #(AVE THE !NALOG /UTPUT DRIVE AN AUXILIARY M! RECORDED WHICH HAS A RANGE OF TO FPMM! M!FPM# ##BLANK5SE THE SETPOINTS FOR WEB BREAK DETECTION WITH 3ETPOINT GOING TO ALARM IF THE RATIO IS LESS THAN AND 3ETPOINT GOING TO ALARM IF THE RATIO IS LESS THAN 2ELAYS ARE LATCHING# ## X NO HYSTERESIS # XAUTORANGING FIXED TO ONE DECIMAL PLACE LATCHING RELAY LATCHING RELAYANALOG OUTPUT IS M!12Distributed By Inc,Airpax(800) 576 -6308/airpax%.4%2).' 4(% #/.34!.434HE #ONTROL 0ANEL )S LOCATED BEHIND THE DOOR OF THE $ISPLAY 4O GAIN ACCESS TO THE PANEL SLIDE THE LATCH ON THE $ISPLAY DOOR TO THE LEFT#ONTROL &EATURES#ONSTANT 4HUMBWHEEL #47 7HEN THE #47 IS SET TO h v THE INSTRUMENT RUNS AT ITS CONFIGURED MODE 7HEN IT IS SET TO A NUMBER OTHER THAN h v THE INSTRUMENT STOPS OPERATING AS A RATE MONITOR ALL OUT PUTS FREEZE AT THEIR CURRENT VALUES AND THE $ISPLAY SHOWS THE CONSTANT SELECTED BY THE #47 &OREXAMPLE TO LOOK AT THE VALUE FOR SETPOINT ONE SET #47 TO #ONSTANT #WILL APPEAR ON THE $ISPLAY )N LIKE MANNER ALL CONSTANTS MAY BE VIEWED !FTER REVIEWING THE CONSTANTS RETURN #47 AND $47 TO ZERO 4HE $ISPLAY WILL SHOW 0Bv 4HIS MEANS hPUSH THE BUTTON 0B v "Y PUSHING THE BUTTON YOU INSTRUCT THE INSTRUMENT TO RETURN TO NORMAL OPERATION$IGIT 4HUMBWHEEL $47 4HE CONSTANT BEING DISPLAYED CAN BE ALTERED BY USING THE $47 AND THE 0B 7HEN THE $47 IS SET TO h/v PUSHING AND HOLDING THE 0B LOCATES THE DECIMAL 7HEN THE $47 IS SET TO A $ISPLAY DIGIT PUSHING AND HOLDING THE 0B CHANGES THE NUMBER IN THE DIGIT0USH "UTTON 0B 44, -!' $IPSWITCHES &OUR POSSIBLE SETTINGS PROGRAM THE INSTRUMENT FOR THE TYPE OF SENSOR BEING USED! / &ULL 3CALE 2 IS FACTORY SET AND NORMALLY WILL NOT REQUIRE CALIBRATION )T MAY BE ADJUSTED BY INPUTTING SIGNALS TO THE INSTRUMENT THAT FORCE THE OUTPUT BEYOND THE ANALOG OUTPUT FULL SCALE AND BY ADJUSTING 2 TO MILLLAMPS USING AN ACCURATE CURRENT METER$ISPLAY 4HE $ISPLAY HAS DIGITS 4HE DIGIT TO THE FAR LEFT IS REFERRED TO AS A DIGIT BECAUSE ONLY A BLANK ZERO OR A ONE CAN BE ENTERED ON IT !NY TWO CHANNEL CALCULATION MAY RESULT IN A NEGATIVE QUANTITY !NY VALUE TOO LARGE FOR THE $ISPLAY WILL CAUSE THE $ISPLAY TO FLASH ITS LARGEST VALUE13&5.#4)/. ).$)#!4/23$)30,!9$)')4 4(5-"7(%%,#/.34!.4 4(5-"7(%%,44, -!' $)037)4#(! / &5,, 3#!,% 2 053( "544/. 0B!"Distributed By Inc,Airpax(800) 576 -6308/airpax!LTERNATE $ISPLAY -ODE 7HILE IN THE RUN MODE #47 AND $47 YOU MAY USE THE $47 TO VLEW QUAN TITIES ! AND " 4O VIEW ! SET $47 TO 4O VIEW " SET $47 TO 4O VIEW THE QUANTITY ORIGINALLY SELECTED FOR THE $ISPLAY SET $47 TO ZERO 4HIS DOES NOT AFFECT THE OPERATION OF THE INSTRUMENT 4HE VALUES DISPLAYED UNDER ! AND " USING THIS FEATURE WILL ALWAYS BE FULL AUTORANGING REGARDLESS OF THE SETTING OF DIGIT OF THE CONSTANT # &UNCTION )NDICATORS4HESE INDICATOR LAMPS SHOW THE CHANNEL DISPLAYED4URNING /N 4HE 0OWER0LACE THE TACHOMETER ON THE FLAT SURFACE!TTACH THE !# POWER CORD TO REAR TERMINAL LEAD AND0LUG THE UNIT INTO AN !# OUTLET%NTERING 4HE 3CALING &ACTORS &OR &REQUENCY ! AND " #THRU #.OTE )F YOU HAVE A TOOTH GEAR THEN FREQUENCY IS EQUAL TO 20- AND THE CONSTANTS ARE EQUAL TO THESTANDARD CONSTANT 5SE TWO DIGIT NUMBERS IN THE FORM OF A FRACTION TO ENTER EACH OF THE SCALING FACTORS &OR &REQUENCY ! ENTER THE NUMERATOR IN # AND THE DENOMINATOR IN #&OR &REQUENCY " ENTER THENUMERATOR IN # AND THE DENOMINATOR IN #)F YOU ARE USING THE 4!#(42/,¸TACHOMETER AS A SINGLECHANNEL INSTRUMENT DO NOT ADJUST THE SETTINGS FOR # AND # 3!-0,% 3#!,).' &!#4/2## 4O ENTER #4URN #47 TO$47 IS ALREADY SET AT 0USH AND HOLD THE 0B UNTIL THE DECIMAL DISAPPEARS 4URN $47 TO 0USH AND HOLD 0B UNTIL APPEARS ON $ISPLAY $IGIT 4URN $47 TO 0USH AND HOLD 0B UNTIL APPEARS ON $ISPLAY $IGIT 4URN $47 TO 0USH AND HOLD 0B UNTIL APPEARS ON $ISPLAY $IGIT 4URN $47 TO 0USH AND HOLD 0B UNTIL APPEARS ON $ISPLAY $IGIT 4URN $47 TO 0USH AND HOLD 0B UNTIL A APPEARS ON $ISPLAY $IGIT14Distributed By Inc,Airpax(800) 576 -6308/airpax4O ENTER #4URN #47 TO AND THEN USE $47 AND 0B TO ENTER THE DECIMAL AND THE NUMBER FOR EACHDIGIT IN THE SAME MANNER AS YOU DID FOR #%NTERING 4HE &UNCTION #ONSTANT #4URN #47 TO4URN $47 TO AND ENTER THE NUMBER OF THE FUNCTION YOU HAVE SELECTED TO SEND TO $ISPLAYBY PUSHING AND HOLDING THE 0B UNTIL THE NUMBER APPEARS IN THE FIRST $ISPLAY DIGIT 4URN $47 TO AND ENTER THE NUMBER OF THE FUNCTION YOU HAVE SELECTED TO SEND TO ANALOG OUTPUT BY PUSHING AND HOLDING THE 0B UNTIL THE NUMBER APPEARS IN THE SECOND $ISPLAY DIGIT 4URN $47 TO ENTER THE NUMBER OF THE FUNCTION YOU HAVE SELECTED TO SEND TO SETPOINT BY PUSHING AND HOLDING THE 0B UNTIL THE NUMBER APPEARS IN THE THIRD $ISPLAY DIGIT 4URN $47 TO ENTER THE NUMBER OF THE FUNCTION YOU HAVE SELECTED TO SEND TO SETPOINT BY PUSHING AND HOLDING THE 0B UNTIL THE NUMBER APPEARS IN THE FOURTH $ISPLAY DIGIT3ELECT THE NUMBER OF THE FUNCTION FROM THE TABLE ON THE LEFT FOR EACH OUTPUT.OTE 3ET ANY UNUSED OUTPUT TO h v OFF FOR FASTER RESPONSE%NTERING 4HE #ONSTANTS 7HICH $EFINE 4HE "EHAVIOR /F 4HE /UTPUTS #$ISPLAY /UTPUT#ONSTANT ! 4URN #47 TO" %NTER THE CONSTANT BY USING THE $47 AND 0B IN THE SAME MANNER AS YOU DID FOR #THRU # !UTORANGING ! 4URN #47 TO " 4URN $47 TO15#Distributed By Inc,Airpax(800) 576 -6308/airpax# 5SE CHART BELOW TO SELECT THE LOCATION OF THE DECIMAL$ 0USH AND HOLD 0B UNTIL THE NUMBER FROM THE CHART APPEARS IN THE FIRST $ISPLAY DIGIT$%#)-!, ,/#!4/2 )3.O DECIMAL &IXED !UTO 2ANGE $ECIMALRIGHT ONLY#!NALOG /UTPUT:ERO 3CALE #ONSTANT ! 4URN #47 TO" %NTER THE CONSTANT BY USING $47 AND 0B IN THE SAME MANNER AS YOU DID FOR #THRU #&ULL 3CALE #ONSTANT ! 4URN #47 TO" %NTER CONSTANT BY USING THE $47 AND 0B IN THE SAME MANNER AS YOU DID FOR # THRU #:ERO 3CALE #URRENT ! 4URN #47 TO " 4URN $47 TO# 3ELECT THE ZERO SCALE CURRENT FROM CHART OR MA$ 0USH AND HOLD 0B UNTIL THE NUMBER REPRESENTING THE ZERO YOU VE SELECTED APPEARS IN THE FIFTH $ISPLAY DIGIT!.!,/' /54054 )3 MA BLANK#/2 MA3ETPOINT /UTPUT3ETPOINT #ONSTANT ! 4URN #47 TO" %NTER CONSTANT BY USING $47 AND 0B IN THE SAME MANNER AS YOU DID FOR #THRU #(YSTERESIS &OR 3ETPOINT ! 4URN #47 TO" %NTER THE VALUE OF THE HYSTERESIS GIVEN IN PERCENTS AS A TWO DIGIT NUMBER I E AS16Distributed By Inc,Airpax(800) 576 -6308/airpax# 4URN $47 TO 0USH AND HOLD 0B UNTIL THE VALUE OF THE FLRST DIGIT APPEARS IN THE FIRST $ISPLAY DIGIT$ 4URN $47 TO 0USH AND HOLD 0B UNTIL THE VALUE OF THE SECOND DIGIT APPEARS IN THESECOND $ISPLAY DIGIT#30L2ELAY ,OGIC ! 4URN #47 TO" 4URN $47 TO# 3ELECT THE 2ELAY ,OGIC FROM THE CHART BELOW$ 0USH AND HOLD THE 0B UNTIL THE NUMBER REPRESENTING THE LOGIC YOU VE SELECTED APPEARSIN THE SECOND $ISPLAY DIGIT3ETPOINT /UTPUT3ETPOINT #ONSTANT! 4URN #47 TO" ENTER THE CONSTANT USING THE $47 AND 0B IN THE SAME MANNER AS YOU DID FOR #THRU #(YSTERESIS FOR 3ETPOINT! 4URN #47 TO" %NTER THE VALUE OF THE HYSTERESIS GIVEN IN PERCENT AS A TWO DIGIT NUMBER# 4URN $47 TO 0USH AND HOLD 0B UNTIL THE VALUE OF THE FIRST DIGIT APPEARS IN THE THIRD$ISPLAY DIGIT$ 4URN $47 TO 0USH AND HOLD 0B UNTIL THE VALUE OF THE SECOND DIGIT APPEARS IN THE FOURTH$ISPLAY DIGIT#30 17Distributed By Inc,Airpax (800) 576 -6308/airpax。