MCM 400 User`s Manual - KEM Küppers Elektromechanik GmbH
Contents
1. P 1 0 to P 1 3 are always available sscan sener P 1 3 limit alarm counter POI _ process parameter on rr nN Limit mode 0 no limits 2 FERNS p lt enter gt 8 e Seu Parameters P 1 1 to P 1 9 not available y P 1 4 batch limit A Prog __ process parameter lt gt 3 ve nee lt enter gt Limit mode 1 batch limits P 1 5 batch limit B prog a process parameter P 1 4 to P 1 5 available P 1 6 to en F ane P 1 E not available P 1 6 flow max A _ lt prog gt process parameter seca F center Limit mode 2 flow limits P 1 7 flow min A prog __y process parameter P 1 6 to P 1 E available sSCan lt enter gt P 1 8 flow max B _ lt prog __y process parameter J Limit mode 3 flow limits min max lt scan gt eoa OOo M P 1 6 P1 9 to P 1 E available P 1 9 flow min B lt o gt e process parameter lt gt Span F lt enter gt lt prog gt P 1 E switch hysteresis process parameter lt scan gt lt scan gt L key Parameter level 2 lt enter gt SO m measuring mode linearisation Parameter level 2 Programming 10 linearisation points from the calibration OP0000 frequency 01 Semer l diagram entering frequency and error option OE 0 0 error 01 lt enter gt i 1P0000 frequency 02 lt enter gt2. 19 Notes on Installation Connect metal housing with PE 0 4 20 mA 1000 Ohm current output Frequency input description 12V 50mA external pickup supply GND external pickup supply fin channel A measurement Control inputs description reset counter vs GND hold vs GND limit start delay vs GND Current output description n c I current output 0 4 to 20mA I current output 0 4 to 20mA Built in devices have to be installed in a metal housing connected with protected earth Observe a low impedance connection of PE and a measurement of the PE resistor according to VDE 0701 Also observe a sufficient shielding for the employed cabinet Keep distance Keep current carrying cables at least 30cm away from the MCM 400 Only shall indicated terminals and contacts be used for power supply Keep mobiles ISM units or switching inductivities like engines or solenoid valves at least 2 metres away from the digital measuring and control electronics Avoid sources of electrostatic charges in the closer environment of the MCM 400 Operators should also consider appropriate clothing and wear of shoes with discharging ability Avoid parallel arrangement of current carrying cables MCM 400 User s Manual Technical Data Data Flow Chart contact B fn 08 E 2 pickup supply 12 V 06 2 Y common lt GND 07 5 L contact A
3. 1E 0 0 error 02 lt enter gt Parameter level 3 lt enter gt Scaling the analogue output option EER Parameter level 3 lt enter gt measuring mode analogue ouput 8P0000 frequency 09 lt enter gt 8E 0 0 error 09 lt enter gt ji 9P0000 frequency 10 lt enter gt 9E 0 0 error 10 P 3 0 analogue offset 4mA _ lt prog __ process parameter ina p see P 3 1 full scale 20mA lt prog gt process parameter ia F lt enter gt P 3 2 response time f i lt pro9 gt a process parameter a d lt enter gt lt scan gt 12 KEM Programmimg Summary Table of Parameters The table below shows all parameters with their adjustable range and the respective defaults A detailed description can be found on the following pages Parameter Description Range Default PE 0 _ Parameter level 0 Operational data P 0 0 20000 pulses P01 2 nin P02 00 00 2 digit P 0 3 f cut cut off frequency 0 4 100 0Hz 5 0Hz Pod 1000 kan P 0 6 notinuse o o A P0 7 0 af Pos 0 off PE 1 __ Parameterlevell Limits Cd P 1 0 Limit mode O off 0 off 1 batch limit 2 flow limit 3 flow limit min max Pa oom P16 100 00 Termin P17 10 00 Termin PL8 100 00 Termin P9 10 00 r min PE 2 Parameter level 2 Linearisation o O linea
4. Frequency output f 1 1 This output provides the input frequency galvanically free via open collector and allows for further evaluation of the unprocessed frequency by additional units Using external resistor networks levels of all kinds may be realised MCM 400 Frequency Ouput 1 1 Frequency Input of External Unit F a S f1 1 level g H U oemat ic L M extemal k 04 N M external Limit outputs The output of both limits A and B is an operational relay contact at terminals 1 and 3 respectively as well as terminal 2 common The mode of operation is programmable Limit Outputs MCM 400 A B external wiring m 12V intern E Aye KA Ta Ps bi e _ Analogue output 0 4 20mA The optional analogue output is freely scaleable assignment of real time values of the frequency measuring input MCM 400 Current Outputs 0 4 to 20 mA current meter o R lt 1 kOhm GND internal 3 galvanically free MCM 400 User s Manual Programme Scheme shift Gl key General Meas mode processing of In the measuring mode the MCM will check several in and outputs lt Prog gt lt Enter gt 3 seconds keys key combinations and the software runs through the lt Enter gt respective routines Ja Programming mode Programming
5. O a o 09 reset A 07 GND f 1 1 collector 05 TE 22 3 11 limit wait Os 5 07 GND f1 1 emitter 04 g 10 hold oO Be gt i PE 52 2 Fy 19 H T 5 lt 50 B 83 265 V AC 24V DC 50 115 51 Drawing Panel Mounting mm For dimensioning panel board cut out Le 144 00 z 135 80 t gt t mus aee op ry T I 7 a wE i I n i i i O O i elo is Dig lt n sty Ao tae oY Kok ie Rk Ke Koken te ROOK ASIA SEES AES ASA ELITA AEN i a 3 i l Aj 3 l k l i j panel board cut out l I 136mm x 66mm i l p I i I I i A NSS ee E EE N creed a ei es ety ern wi Y i Pn Ea 8 50 la 7 S Please consider bending radius of cable for installation Avoid parallel cable runs of power and measuring lines 6 KEM Drawing Wall Mounting mm a 165 yY a 97 a 90 45 gt iv rs T o N of ji y T Avoid parallel cable runs of power and measuring lines Ordering Information MCM 400 xxx x xXx X X XX MCM 400 User s Manual Software code 00 99 standard software not used Linearisation 1 with linearisation 0 without Linearisation Analogue output A with analogue output 0 without analogue output Housing S panel mounted W wall mounted Supply voltage 024 24VDC controlled 230 115 265 V 50 60 Hz
6. This parameter prevents the limits from reacting too early e g when starting up a system The allowable adjustment ranges from 507msec to 3042msec and can be selected in steps of 507msec The adjusted delay time applies for both limits and is to be activated via the external contact control input limit wait With active wait time the limits are put in a neutral state until the response time has passed Preset 507 1014 1521 2028 iat 3042 Unit msec msec msec msec msec Operation g g g f WH in Limit alarm counter This parameter can be used to ignore sporadically appearing limit alarms by programming a minimum number of alarms necessary to activate the limits You may adjust this parameter in a range of 0 to 20 alarms When 0 is programmed the limits will be activated withou delay MCM 400 User s Manual 19 P 1 4 P 1 5 P 1 6 P 1 7 P 1 8 P 1 9 P 1 E Programming Batch Limit A limit mode 1 Enter the standardised count on which the switch output A is to be activated the MCM takes over the unit in accordance with the flow rate unit adjustment You may enter values with max 2 decimal digits Batch Limit B limit mode 1 Enter the standardised count on which the switch output A is to be activated the MCM takes over the unit in accordance with the flow rate unit adjustment You may enter values with max 2 decimal digits Flow Max A limit mode 2 and 3 If the flow rate exceeds
7. To start programming simultaneously press PROG and ENTER for approx 3 seconds 2 Beasige The current display is faded out and all outputs take a p r g neutral status The display shows the first a programming level P00 The further process is Selecting display totals real time value described on the following pages lt Reset gt key 4 Display selection Ja r eg es lt lt ow reset Yes v Press display to select the indication of totals or the real time value Reset of the Totaliser When the total reset via keyboard is programmed the totaliser can be reset via res batch to 000000 in the Reset totalizer measuring mode lt Prog 3 seconds keys gt lt Shift gt Yes v Analogue out check This functions is used to check the performance of the analogue output 4 presets of current values can be sent to the analogue output via the keyboard Analogue test mode lt Enter gt Display Messages The following messages may appear in the display during the measuring mode or after programming Message E 00 E 01 E 02 E 03 E 04 E 20 E 21 E 30 E 50 10 Description erase of EEPROM data memory parameter error in EEPROM gt proceed with ENTER exceeding display value cannot be indicated with 6 digits n c setting defaults to MPU RAM copying data to MPU RAM calculating operational parameters writing data in E
8. resolution 12 bit Power supply 24VDC 230VAC 115VAC Wall mounting housing IP 54 Special features of the MCM 400 are excellent readability of measuring and operation values fast response time high accuracy as well as simple and safe programming of all parameters Typical applications can be found in the monitoring of real time values or control of batch processes Technical Data housing protection cccee front IP50 DIN 40050 option S IP54 DIN 40050 option W rear IP30 as per DIN 40050 option S IP54 DIN 40050 option W CONNECTIONS 0 cseeeseeeneeeeeeeeeeene eee power supply screw terminals 0 14 up to 1 5mm in and outputs screw terminals 0 14 up to 1 5mm housing dimensions option S DIN panel mounted 144 x 72mm depth 83mm housing dimensions option W wall mounted w 165mm h 155mm d 94mm with 4 cable sleeves PG13 5 wire size 5 to 12mm permissible ambient temperature 0 up to 45 C weight ieren see Ge approx 500g supply voltage ccccesseeeeseeeeees 24VDC 115VAC 230VAC 50 Hz power consumption 5VA pickup supply cccecceeeseeeeeees 12VDC 50 mA frequency imputs cceeeeeeees measuring accuracy 0 02 response time 2 20ms current switch level NAMUR DIN 19234 voltage switch level Ul lt 6V Uh gt 9V Umax 30V frequency measuring range 0 4Hz up to 10kHz with ton off gt 40 Us control inputs cee eee reset hold limit wai
9. P 0 6 not in use P 0 7 Linearisation on off page 18 P 0 8 Reset via key page 18 Completion of a parameter level page 18 Parameter level 1 page 19 Programming the switch outputs P 1 0 Limit mode page 19 P 1 1 Flashing display with active limits page 19 P 1 2 Limit delay time page 19 P 1 3 Limit alarm counter page 19 P 1 4 Batch limit A page 20 P 1 5 Batch limit B page 20 P 1 6 Flow max A page 20 P 1 7 Flow min A page 20 P 1 8 Flow max B page 20 P 1 9 Flow min B page 20 P 1 E Hysteresis page 20 Parameter level 2 page 21 Linearisation points Parameter level 3 page 22 Programming the analogue output P 3 0 Analogue offset page 22 P 3 1 Analogue full scale page 22 P 3 2 Response time of the analogue output page 22 Analogue Out Check page 22 Start up page 22 Features and Application The MCM 400 is a microprocessor based readout and evaluation unit for measuring values available as a frequency In addition to a 6 digit LED display 7 segments digit height 20mm the MCM has a frequency measuring channel 0 4Hz 10kHz and two relay switch outputs Frontsided LED s inform the operator on the status of the switch output and the operation mode of the display Three control inputs serve processing Operation and parameter settings are effected via foil touch keyboard Options 10 point linearisation of the frequency measuring input Analogue output galvanically free 0 4 20mA
10. parameter P te time and so on A detailed lt Enter gt description can be found on the P 0 1 Flow dimension unit S adjust parameter following pages aa lt Enter gt P 0 2 Flow decimal point 222 _ adjust parameter P 0 4 density is only available when a mass related unit was ial lt Enter gt lt Prog gt programmed see P 0 1 P 0 3 Cut off frequency gt adjust parameter A GJ lt Enter gt y lt Prog gt P 0 4 Density meas medium adjust parameter H lt Enter gt P 0 5 Gate time lt Pro9 gt A adjust parameter m p lt En e P 0 6 Gate memory lt Prog gt _y adjust parameter GJ p lt En r P 0 7 Linearisation on off Ps adjust parameter al p lt En i P 0 8 Key Reset on off _ lt Prog y adjust parameter aa MCM 400 User s Manual Programming Summary Parameter level 1 Parameter level 1 lt enter gt gt limits measuring mode z 2 Programming the two limits of the MCM rja Adjusting operation mode of the switch P 1 0 limit mode lt pro9 gt al process parameter contacts limit values and hysteresis for the e o e switch processes lt enter gt P 1 1 flashing display lt pro9 gt al process parameter lt scan gt ee 7 The limits are programmable in accordance P 1 2 limit delay time bres __ process parameter with the limit mode
11. the value programmed here the switch output A will be activated the MCM takes over the unit in accordance with the flow rate unit adjustment The number of decimal digits corresponds to the flow decimal point adjustment P 0 2 Flow DP Save your adjustment with ENTER Flow Min A limit mode 2 If the flow rate bypasses the value programmed here the switch output A will be activated the MCM takes over the unit in accordance with the flow rate unit adjustment The number of decimal digits corresponds to the flow decimal point adjustment P 0 2 Flow DP Save your adjustment with ENTER Flow Max B limit mode 2 If the flow rate exceeds the value programmed here the switch output B will be activated the MCM takes over the unit in accordance with the flow rate unit adjustment The number of decimal digits corresponds to the flow decimal point adjustment P 0 2 Flow DP Save your adjustment with ENTER Flow Min B limit mode 2 and 3 If the flow rate bypasses the value programmed here the switch output B will be activated the MCM takes over the unit in accordance with the flow rate unit adjustment The number of decimal digits corresponds to the flow decimal point adjustment P 0 2 Flow DP Save your adjustment with ENTER Hysteresis for limit mode 2 or 3 The hysteresis of both switch outputs A and B is to be entered as percentage of the limit When the output is active the limit has to exceeded or bypassed by this perce
12. with two decimal digits Select preset 2 for flow rate unit P 0 1 and 00 00 for decimal point P 0 2 16 KEM P 0 3 P 0 4 P 0 5 P 0 6 Programming Cut off frequency When the flow rate bypasses the minimum flow range of the flow meter the output frequency will be outside the linear range of the meter The frequency corresponding to al the minimum flow range see calibration record is called cut off frequency The analogue output display and limits will not work below this frequency The analogue output takes its offset value the real time values are display 0000 and the limits are out of operation 7 2mA The decimal point position for the cut off frequency is fixed to 000 0Hz Press L to programme the value for each digit Press EJ to move and ENTER to save AmA f HD Density specific gravity of the measuring medium In case a mass related unit was selected for the flow rate P 0 1 you may enter the density of the measuring medium in kg m and the MCM will calculate the measuring values considering the K factor and density The decimal point may be moved via the PROG key Please note when a volumetric unit e g ltr min was selected for the flow rate the MCM will skip the density programming Gate time The parameters gate time and gate memory enable you to adapt the temporary transmission behaviour between frequency and analogue output to your requirements After the gate time ha
13. AC Technical Data Inputs and Outputs Frequency input The versatile frequency input stage of the MCM 400 allows to operate sensors with NAMUR output or any output in compliance with the level limits cf technical data The pickups may be powered via terminal 6 with a voltage of 12V max 50mA MCM 400 Frequency Input NAMUR 19234 8V Rel PA PE i e I x m e gt Fin Od ov Control inputs These inputs have identical input wirings reset hold and limit wait Control Inputs MCM 400 Digital Outputs Siemens Simatic 7 Control input reset Gb te a So z This input serves to reset the standardised totaliser of the MCM 400 to 0000 Control input hold The optional analogue output will hold its current value as long as this connection is active Moreover the totaliser of the MCM will hold its current count Pere eee nen Control input limit wait delay time Using this input you may delay the response of the limits A and B by an adjustable time interval see parameter P 1 2 This is useful in order to prevent the evaluation of a start up period of the system In case this input is not connected the limits will respond as soon as the programmed values e W Hilt are reached 8 KEM Technical Data
14. ENTER The display shows the current parameter no F 0 8 ay to go through the parameters again ENTER to quit After pressing ENTER MCM goes back to parameter level ay to select the next parameter level ENTER to quit programming All data will be saved and the MCM will automatically go into the measuring mode 18 KEM P 1 0 P 1 1 P 1 2 P 1 3 Programming Parameter Level 1 Programming the Switch Outputs Limit mode The two switch outputs may be related to the totals batch limit or real time values flow limit a Active limits are indicated by the two left hand front LED s You may select the desired mode via the a key Limits off both switch outputs A and B are off Batch limit The switch outputs A and B will be activated on reaching counts as adjusted for parameter 3 or P 7 4 respectively Flow range limit The switch outputs A and B will monitor the real time value within a programmable range adjustable with parameters P 1 6 P 1 5 and P 1 8 P 1 1 Flow limit min max Switch output A monitors the max value programmed under P 1 6 Switch output B monitors the min value programmed under P 1 9 flow limit min max J Limit mode 0 1l flow range limit a o a Operation Flashing display with active limits In addition to have active limits indicated by the front LED s you may also adjust the display to flash on reach of the limits A or B Operation Limit wait time delay time
15. EPROM programming not allowed KEM Programming Summary y Programming Mode pla lt Enter gt 4 lt Enter gt H v lt Enter gt Parameter Level 0 lt Prog gt First parameter P 0 0 lt Prog gt Last parameter P 0 X Operating Data PE 0 lt Prog gt for programming lt gt lt Prog gt for programming le lt Enter gt lt Enter gt W Enter gt Parameter Level 1 lt Prog gt First parameter P 1 0 a Last parameter P 1 X Limits PE 1 lt Prog gt for programming lt Prog gt for programming la lt Enter gt lt Enter gt AA o O Enter gt Parameter Level 2 lt Prog gt First parameter P 2 0 a Last parameter P 2 X PE 2 lt Prog gt for programming lt Prog gt for programming la lt Enter gt lt lt Enter gt aa y Enter gt Parameter Level 3 lt Prog gt First parameter P 3 0 WO Last parameter P 3 X PE 3 lt Prog gt for programming P i lt Prog gt for programming aa calcluating operational aie oer PROM Measuring Mode message E 21 Parameter Level PE 0 lt Enter gt Parameter level PE O Measuring Mode X Operating Data Basic adjustments for the flow le meter and measuring mode like decimal point flow unit gate P 0 0 K factor flow meter 92 gt adjust
16. MCM 400 User s Manual As of version ELO4 99 l K ppers Elektromechanik GmbH Quality system certified to DIN EN ISO 9001 KEM Contents Features and Application page 4 Options page 4 Technical Data page 3 Layout of terminals connections page 5 Notes on installation page 5 Data flow chart page 6 Dimensional drawings page 6 7 Ordering Information page 7 In and outputs page 8 Frequency input page 8 Control inputs page 8 Frequency output FEL page 9 Limit outputs page 9 Analogue output 0 4 20 mA page 9 Programme Scheme page 10 General page 10 Parameter setting page 10 Display selection page 10 Totaliser reset page 10 Analogue out check page 10 Display messages page 10 Programming Summary page 11 Parameter level 0 page 11 Parameter level 1 page 12 Parameter level 2 page 12 Parameter level 3 page 12 Table of parameters page 13 Invalid programming page 13 Restoring defaults page 13 Start Up page 14 Measuring Mode page 14 Real time value page 14 Totals page 14 Limit status page 14 MCM 400 User s Manual Programming page 15 Entering numerical parameters page 15 Selecting from presets page 15 Parameter level 0 page 16 Adjusting operational parameters P 0 0 K factor of the flow meter page 16 P 0 1 Flow rate unit page 16 P 0 2 Decimal point page 16 P 0 3 Cut off frequency page 17 P 0 4 Density page 17 P 0 5 Gate time page 17
17. if the key reset was allowed during programming P 0 8 1 ON Alternatively the totaliser may be reset via the control input reset terminal 9 Limit Status The status of the limit switch contacts is indicated by two LED s located on the left hand frontside With active limits the related LED will turn on i e the limit switch contact is closed A further possibility to indicate active limits is the flashing of the display by adjusting parameter P 1 1 accordingly 14 KEM Programming Start the programming mode To start the parameter programming simultaneously press PROG and ENTER for approx 3 seconds The measuring mode will be interrupted and all outputs take a neutral status The first parameter level PE appears in the display PE O 0 PE3 PE means parameter level 0 to 3 number the levels available depending on options included ENTER to return to measuring mode cf programming scheme page 10 ia to go through the parameters PROG to select the first parameter of the present level P 0 0 0 P 0 8 P means parameter The first number indicates the parameter level while the second number refers to the parameter itself ENTER to return to the parameter level cf programming scheme page 10 WH to go through the parameters PROG to programme a parameter After pressing PROG the display will show the current value of the selected parameter It may be adjusted by entering either numericals or selecting fro
18. m presets Entering numerical parameters When a numerical parameter appears in the display the up right hand digit will flash asking you to enter a value B to select the decimal position The present position is flashing a to enter a value Each pressing will increase the value by 1 0 9 B to select the next decimal position ENTER to save parameter Afterwards the parameter number will appear in the display again i to select the next parameter followed by PROG to programme the parameter ENTER to quit Selecting from presets For some parameters there are only presets to select from The parameters concerned and their respective presets are shown in the table below to go through the presets ENTER to save Prog Code Parameter function Description Presets Range PoI 0 15 oe tables page 19 P 0 5 507 3042 ms adjustable in steps of 507 ms P 1 0 Limit Mode 0 limits off 1 batch limits feed 2 flow limits 3 flow limits min max P 1 2 104 3120 ms adjustable in steps of 104 ms offset analogue output P 3 0 offset analogue output 0 0mA l 4mA P 3 2 response time analogue output 0 fast 1 slow MCM 400 User s Manual 15 P 0 0 P 0 1 P 0 2 Programming Parameter Level 0 Adjusting Operational Parameters K factor of the flow meter Each flow meter is supplied with a calibration record indicating the mean K factor This factor defines the no of pulses per volume unit litres over the entire measuri
19. ments for gate time P 0 5 Save with enter ENTER Analogue Out Check i Starting the Test Programme Simultaneously press PROG and GI for approx 3sec The MCM 400 will leave the measuring mode and run the test programme to check the analogue output This process is indicated by both LED s on the right hand frontside which will take turns flashing Meas mode keys lt Prog gt lt Shift gt approx 3se The output may be checked with respect to performance and linearity 4 fixed output values are available Press U to select the Yes presets Wee j lt Enter gt lt _ 0 0 Pressing ENTER will stop the test programme and re start the lt Scan gt measuring mode jt lt Enter gt 4 _ 40 lt Scan gt PLEASE NOTE lt Enter gt lt 12 0 During the test mode the limit are neutral Incoming measuring signals pickup frequencies are not processed lt Scan gt lt Enter gt lt __ 13 5 v lt Scan gt Subject to change without notice Zi Rev 001 10 06 22 KEM
20. ncy display for programming the next frequency This process will repeat until a frequency has been programmed as 0 or when 10 linearisation points have been completed last linearisation point no is 9 After saving the last error the MCM goes back to the parameter level error Calibration Diagram Figures for frequencies and errors can be taken from the table of the calibration record mean K factor MCM 400 User s Manual 21 P 3 0 P 3 1 P 3 2 Programming Parameter Level 3 Programming the Analogue Output With the optional analogue output the MCM 400 may generate a potential free current signal of 0 4 to 20 mA which is in proportion with the real time value 3 parameters have to be adjusted Analogue offset You may select between an absolute offset of OmA or a shifted offset of 4mA Save with ENTER Preset Operation Analogue full scale Enter the real time value which shall correspond to 20mA unit in accordance with adjustment for P 0 1 In order to reach a max accuracy you may move the decimal point via the PROG key to the desired digit independent of the programmed decimal point P 0 2 Save with ENTER Response time of the analogue output The FAU can convert the measuring frequency into an analogue signal Preset Response time frequency slow The calmed frequency is calculated in accordance Operation based on the incoming frequency fast or based on the calmed with the adjust
21. nd front The LEDs may be marked using the stickers supplied with the MCM The way of indication decimal point flow rate unit etc depends on the adjustments in parameter level 0 Real time Value The current real time value of the frequency input is indicated in accordance with the adjusted flow rate unit and decimal point The calculation is based on the currently measured frequency and the K factor of the flow meter The calculation is upgraded every 0 5sec corresponding to approx 2Hz The internal upgrading and the resultant response time of the analogue output and the limits depends on the parameters gate time P 0 5 Totals The MCM 400 is equipped with a totaliser batch counter which will add the pulses of the flow meter standardised in a technical unit P 0 1 Flow rate unit The totaliser allows for detection of total flow rates over a long period The decimal point position depends on the flow rate unit The MCM will automatically display as many digits as possible EXAMPLE Flow rate unit m3 h the consumption is displayed with 3 digits in m 12 345m3 If the measuring value exceeds the display range it will be assigned accordingly e g 1234 567m3 will be display as 1234 56m In case the measuring value is too high to be displayed by fading out digits it will be displayed using exponential notation e g 1234567 89m will be displayed 1 23E06 In the measuring mode the totaliser may be reset via the RES BATCH key
22. ng range of the flow meter The linearity error of the mean K factor over the entire measuring range is also shown in the calibration record In addition to the mean K factor and error the calibration record does also include K factors and errors at certain flow rates With constant flow rates you may reach a higher accuracy by selecting the K factor which is the closest to the flow rate in your application EXAMPLE mean K factor as per calibration record 5432 64 pulses Itr Enter the number for each position via the O and EJ key The decimal point may be moved via the PROG key Press ENTER to save Flow rate unit Select the unit in which the flow rate shall be indicated Your selection will also apply for the limits and analogue output The unit itself does not appear in the display EXAMPLE Flow rate unit 2 ltr min real time values are indicated in ltr min analogue full scale value and limits correspond to ltr min or litres batch totals are indicated in litres Preset 0 1 2 3 4 5 6 7 8 Dni wall Operation H H A H H H A H Preset 9 10 ll 12 13 14 15 am rah io Nah Operation g g g g WH WH i Flow decimal point Applies for the real time values The adjustment of the decimal point determines the number of decimal digits For totals the MCM will calculate the best decimal point position in accordance with the measured value Operation ay ay g EXAMPLE The flow rate is to be indicated in ltr min
23. ntage before the output takes a neutral status again The percentage may be entered as accurate as 0 1 20 KEM Programming Parameter Level 2 Linearisation The mean K factor of the flow meter defines a pulse rate per volume unit which contains an error over the complete measuring range The linearisation allows to compensate for this error by entering 10 linearisation points over the measuring range i e 10 frequencies with their respective errors This will enable you to reduce the measuring error to the repeatability which is usually 0 1 for KEM flow meters Having selected parameter level 2 press PROG to start programming the first frequency Linearisation point no Enter 4 digits in Hz t Frequency code The programming starts off with the first frequency 0 You may enter the frequency figures using the O and B key Frequencies are to be entered as integer numbers in Hz The figures can be found in the calibration record of the flow meter On completion of this parameter you are requested to enter the respective linearity error The display shows the following Enter 2 digits in Linearisation point no one decimal digit Error code Sign of the linearity error The linearisation point no is automatically maintained Use PROG to select the sign of the error either or Enter the linearity error with one decimal digit in 1 10 via and B On completion the MCM will automatically go back to the freque
24. risation O onz D0 up t0 29 5 0 PE 3 Parameter level 3 Analogue output Z Z O P30 0 mA T 4mA OE oma P31 1000 Termin P 3 2 Response time 0 fast 1 slow 1 slow Invalid programming When entering invalid values or values which are not included in the respective range the last value will re appear in the display after pressing ENTER and you may repeat programming Restoring defaults Simultaneously press PROG ENTER and BJ Connect power supply When the message E 09 appears in the display all defaults are restored as listed in the above table MCM 400 User s Manual 13 Start Up After powering up the MCM 400 will show the software version ELUY SS All outputs are in a neutral status operational contacts of the limit relays are open analogue output at OmA The MCM is reading the parameters in the EEPROM which is indicated by the following message cu Afterwards all operational parameters are calculated mr Mo a Finally the MCM will automatically go into the measuring mode The display will show the current value in accordance with the selected display mode Measuring Mode The measuring mode allows for indicating either real time values or totals Please note in the measuring mode the keys take the functions as labelled on top of them i e the PROG key changes to DISPLAY key Press DISPLAY to select the desired display mode Your selection is indicated by two LED s located on the right ha
25. s passed the MCM calculates an average frequency for the measuring interval thereby calming signal fluctuations Periodic disturbances e g pressure fluctuations will be included in the displayed values if the gate time is too short You may avoid this by choosing an appropriate interval EXAMPLE flow variations with a period of 0 5 seconds require a gate time of 2 0 5 seconds You may select intervals from 507msec to 3549msec in steps of 507 msec via the a key Save your selection with ENTER Preset 507 1014 1521 2028 2535 3042 Unit msec Operation g g H WH WH in not in use MCM 400 User s Manual 17 P 0 7 P 0 8 Programming Linearisation on off This parameter can be used to either activate or deactivate the 10 point linearisation of the MCM 400 for real time values and the analogue output With active linearisation the MCM will correct the measuring frequency according to the programmed error and frequency figures The programming of these figures is performed in parameter level 2 see page 19 Preset 1 Status on Operation g g Key reset of the totaliser In addition to resetting totals via the control input reset the totaliser can also be reset via the key RES BATCH The key reset will be available if this parameter is set to 1 Please note the reset function via key is only available for totals Status Operation Completion of a parameter level After adjusting the last parameter save with
26. t delay time active at Ul lt 3 V tmin 50ms vs GND analogue output 00 eeeeeeteeeteees galvanically separated resolution 12bit response time 2 20ms current 0 4 to 20mA load 1 000Q linearity 0 05 of full scale temperature drift 0 05 per 10K residual ripple 0 05 of full scale switch OUtPUtS 00 0 ccc eeeeeees 2 potential free relay contacts programmable contact load 30 V 50mA low inductive switch hysteresis adjustable from 0 to 9 9 of measuring value frequency outputs 1 1 galvanically free open collector 30V 50mA displaya cso sisteatesheedett aes etsy 6 digits bright shining red LED display digit height 20mm programmable flashing for limits indicators eena ete dae roa TRENS 2 LEDs for limit status lefthand front flow rate unit eessseeeeessseeerssseereee stickers are supplied for the righthand LEDs to indicate the programmed flow rate unit data MEMOTY marenn EEPROM for at least 10 years 4 KEM Layout of Terminals Connections Technical Data Supply no description no 50 L supply voltage 6 51 N supply voltage 7 52 PE protected earth 8 Limits no description no 1 operational contact A 9 2 Common operational contact A and B 10 3 operational contact A 1l fout 1 1 no description no 4 f 1 1 frequency output emitter 17 5 f 1 1 frequency output collector 18 83 265 V AC 50 60 Hz 24 V DC 15 supply U N PE ae 50 51 52 dF He LARI
Download Pdf Manuals
Related Search