USER MANUAL for flow meter with current input SPP-94. firmware version: 1.04 or higher

Transcription

1 SIMEX USER MANUAL for flow meter wth current nput famly: type: SPP-94 frmware verson: 1.04 or hgher Read the user's manual carefully before startng to use the unt. Producer reserves the rght to mplement changes wthout pror notce V.2.00

2 CONTENTS 1. BASIC REQUIREMENTS AND USER SAFETY GENERAL CHARACTERISTICS TECHNICAL DATA DEVICE INSTALLATION UNPACKING ASSEMBLY CONNECTION METHOD MAINTENANCE FRONT PANEL DRIPTION PRINCIPLE OF OPERATION MEASUREMENT MODE DETECTION OF THE PEAK VALUES CONTROL OF THE RELAY OUTPUTS One threshold mode Two thresholds mode DEVICE PROGRAMMING PROGRAMMING PARAMETERS EDITION Numerc parameters (dgt change mode) Numerc parameters (slde change mode) Swtch parameters ( LIST type) DRIPTION relay1 menu beep menu FLouu menu total menu Int d parameter FLtEr menu OutPUt menu brght parameter HOLd menu SECU menu rs-485 menu Edt t parameter defs parameter SErv menu STRUCTURE OVER-CURRENT PROTECTION DISPLAYED VALUES CALCULATION ADDITIONAL CALCULATIONS (USED CONVERSION CHARACTERISTIC) Lnear characterstc Square characterstc Square root characterstc User defned characterstc EXAMPLES OF CALCULATIONS THE MODBUS PROTOCOL HANDLING LIST OF REGISTERS TRANSMISSION ERRORS DRIPTION EXAMPLES OF QUERY/ANSWER FRAMES DEFAULT AND USER'S SETTINGS LIST

3 Explanaton of symbols used n the manual:! - Ths symbol denotes especally mportant gudelnes concernng the nstallaton and operaton of the devce. Not complyng wth the gudelnes denoted by ths symbol may cause an accdent, damage or equpment destructon. IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS RESPONSIBLE FOR POSSIBLE DAMAGES. - Ths symbol denotes especally mportant characterstcs of the unt. Read any nformaton regardng ths symbol carefully 1. BASIC REQUIREMENTS AND USER SAFETY! - The manufacturer s not responsble for any damages caused by napproprate nstallaton, not mantanng the proper techncal condton and usng the unt aganst ts destnaton. - Installaton should be conducted by qualfed personnel. Durng nstallaton all avalable safety requrements should be consdered. The ftter s responsble for executng the nstallaton accordng to ths manual, local safety and EMC regulatons. - The unt must be properly set-up, accordng to the applcaton. Incorrect confguraton can cause defectve operaton, whch can lead to unt damage or an accdent. - If n the case of a defect of unt operaton there s a rsk of a serous threat to the safety of people or property addtonal, ndependent systems and solutons to prevent such a threat must be used. - The unt uses dangerous voltage that can cause a lethal accdent. The unt must be swtched off and dsconnected from the power supply pror to startng nstallaton of troubleshootng (n the case of malfuncton). - Neghbourng and matng equpment must meet the requrements of approprate standards and regulatons concernng safety and be equpped wth adequate ant-overvoltage and ant-nterference flters. - Do not attempt to dsassemble, repar or modfy the unt yourself. The unt has no user servceable parts. Unts, n whch a defect was stated must be dsconnected and submtted for repars at an authorzed servce centre.! - In order to mnmze fre or electrc shock hazard, the unt must be protected aganst atmospherc precptaton and excessve humdty. - Do not use the unt n areas threatened wth excessve shocks, vbratons, dust, humdty, corrosve gasses and ols. - Do not use the unt n exploson hazard areas. 3

4 !! - Do not use the unt n areas wth sgnfcant temperature varatons, exposed to condensaton or cng. - Do not use the unt n areas exposed to drect sunlght. - Make sure that the ambent temperature (e.g. nsde the control box) does not exceed the recommended values. In such cases forced coolng of the unt must be consdered (e.g. by usng a ventlator). The unt s desgned for operaton n an ndustral envronment and must not be used n a household envronment or smlar. 2. GENERAL CHARACTERISTICS Man task of SPP-94 s measurement of nstantaneous flow (flow rate), and countng of total flow (e.g. passage of flud or gas ), The devce can be used as regulator, to control ndustral process. Measurement of nstantaneous flow can be ndcated n range: 0 to 9999 (plus decmal pont) and can be expressed n combnaton of two cubc measures (Ltre and m 3 ) and three tme measures (second, mnute, hour). Total flow can be ndcated n range from to m 3 wth maxmum resoluton of L. SPP-94 can cooperate wth flow sensors wth current output (0-20mA or 4-20mA). Sensors can be powered from sensor supply output (stablzed, 24VDC +5%, -10% 100mA). The meter s equpped n 2 or 4 relay outputs or Open Collector outputs, whch can be drven due to nstantaneous or total flow. Optonally SPP-94 wth two relays outputs can be equpped wth actve current output. Buld n RS 485 nterface enables access to all nternal regsters, and supports MODBUS RTU communcaton protocol. The controller can be ordered n two power supply versons. Modern desgn guarantees hgh operatonal relablty. Front panel s protected from dust and water spatters. Addtonal features: alarm preset; alarm sgnal s released when measurement exceeds measurement range drect access to relays thresholds settngs, wthout password. 3. TECHNICAL DATA Power supply voltage (dependng on verson) External fuse (requred) Power consumpton Current nput V AC/DC; Hz or V DC; V AC T - type, max. 2 A max V AC/DC max V 35V AC max V 50V DC 0 20 ma, 4 20 ma overload protected, maxmum nput current about 40 ma 4

5 Outputs relay: or OC-type: sensor power supply: actve current: 0, 2 or 4 NO, 1A/250V AC (cos ϕ = 1) 0, 2 or 4 30mA / 30VDC / 100mW 24V +5%, -10% / max. 100 ma, stablzed range max ma, load resstance max.700 Ω (current output s optonal, for two relays verson only) Instantaneous flow range Current measurement accuracy , plus decmal pont ± 0,25% ± one dgt (for 0 20 ma range) Accepted prolonged nput overload: 20% Measurement nput resstance: 50 Ω Instantaneous flow precson Selected from range: Instantaneous flow unt L or m 3 per mn. or sec. or hour Total flow range over 4 x 10 9 m 3 (max. 16 dgts ) Total flow precson Selected from range: Total flow unt L or m 3 Communcaton nterface Baud rate Dsplay Data memory Protecton level Housng type Housng materal Housng dmensons Mountng hole Assembly depth Panel thckness Operatng temperature Storage temperature Humdty Alttude RS 485, 8N1 and 8N2, Modbus RTU, not separated 1200 bt/s bt/s LED, 6 dgt, 13mm heght, red non-volatle memory, EEPROM type IP 65 (from front, after usng waterproof cover) IP 40 (from front) IP 20 (housng and connecton clps) panel NORYL - GFN2S E1 96 x 48 x 100 mm 90.5 x 43 mm 102 mm max. 5 mm 0 C to +50 C -10 C to +70 C 5 to 90% no condensaton up to 2000 meters above sea level Screws tghtenng max. torque 0,5 Nm Max. connecton leads dameter 2,5 mm 2 Safety requrements accordng to: PN-EN nstallaton category: II polluton degree: 2 voltage n relaton to ground: 300V AC 5

6 nsulaton resstance: >20MΩ nsulaton strength between power supply and nput/output termnal: 2300V nsulaton strength between relays termnal: 1350V EMC accordng to: PN-EN 61326! Ths s a class A unt. In housng or a smlar area t can cause rado frequency nterference. In such cases the user can be requested to use approprate preventve measures. 4. DEVICE INSTALLATION The unt has been desgned and manufactured n a way assurng a hgh level of user safety and resstance to nterference occurrng n a typcal ndustral envronment. In order to take full advantage of these characterstcs nstallaton of the unt must be conducted correctly and accordng to the local regulatons.! - Read the basc safety requrements on page 3 pror to startng the nstallaton. - Ensure that the power supply network voltage corresponds to the nomnal voltage stated on the unt s dentfcaton label. - The load must correspond to the requrements lsted n the techncal data. - All nstallaton works must be conducted wth a dsconnected power supply. - Protectng the power supply clamps aganst unauthorzed persons must be taken nto consderaton UNPACKING After removng the unt from the protectve packagng, check for transportaton damage. Any transportaton damage must be mmedately reported to the carrer. Also, wrte down the unt seral number on the housng and report the damage to the manufacturer. Attached wth the unt please fnd: - user s manual, - warranty, - assembly brackets - 2 peces ASSEMBLY 6! - The unt s desgned for mountng ndoor nsde housngs (control panel, swtchboard) assurng approprate protecton aganst electrc mpulse waves. Metal housng must be connected to the groundng n a way complyng wth the governng regulatons. - Dsconnect the power supply pror to startng assembly.

7 16 mm User manual for flow meter wth current nput SPP-94!! - Check the correctness of the performed connectons pror to swtchng the unt on. In order to assembly the unt, a 90,5 x 43 mm mountng hole (Fgure 4.1) must be prepared. The thckness of the materal of whch the panel s made must not exceed 5mm. When preparng the mountng hole take the grooves for catches located on both sdes of the housng nto consderaton (Fgure 4.1). Place the unt n the mountng hole nsertng t from the front sde of the panel, and then fx t usng the brackets (Fgure 4.2). The mnmum dstances between assembly holes axes - due to the thermal and mechancal condtons of operaton - are 115 mm x 67mm (Fgure 4.3). 90,5 mm 8 mm 13 mm 13 mm 8 mm 43 mm 1 mm 1 mm max. 5 mm Fgure 4.1. Mountng hole dmensons 92 mm 8 mm 8,5 mm 12 mm 10 mm Fgure 4.2. Installng of brackets, and dmensons of connectors. 7

8 115 mm 67 mm Fgure 4.3. Mnmum dstances when assembly of a number of unts 4.3. CONNECTION METHOD Cauton! - Installaton should be conducted by qualfed personnel. Durng nstallaton all avalable safety requrements should be consdered. The ftter s responsble for executng the nstallaton accordng to ths manual, local safety and EMC regulatons. - The unt s not equpped wth an nternal fuse or power supply crcut breaker. Because of ths an external tme-delay cut-out fuse wth mnmal possble nomnal current value must be used (recommended bpolar, max. 2A) and a power supply crcut-breaker located near the unt. In the case of usng a monopolar fuse t must be mounted on the phase cable (L). - The power supply network cable dameter must be selected n such a way that n the case of a short crcut of the cable from the sde of the unt the cable shall be protected aganst destructon wth an electrcal nstallaton fuse. - Wrng must meet approprate standards and local regulatons and laws. - In order to secure aganst accdental short crcut the connecton cables must be termnated wth approprate nsulated cable tps. - Tghten the clampng screws. The recommended tghtenng torque s 0.5 Nm. Loose screws can cause fre or defectve operaton. Over tghtenng can lead to damagng the connectons nsde the unts and breakng the thread. - In the case of the unt beng ftted wth separable clamps they should be nserted nto approprate connectors n the unt, even f they are not used for any connectons. - Unused clamps (marked as n.c.) must not be used for connectng any connectng cables (e.g. as brdges), because ths can cause damage to the equpment or electrc shock. 8

9 ! - If the unt s equpped wth housng, covers and sealng packng, protectng aganst water ntruson, pay specal attenton to ther correct tghtenng or clampng. In the case of any doubt consder usng addtonal preventve measures (covers, roofng, seals, etc.). Carelessly executed assembly can ncrease the rsk of electrc shock. - After the nstallaton s completed do not touch the unt s connectons when t s swtched on, because t carres the rsk of electrcal shock. Due to possble sgnfcant nterference n ndustral nstallatons approprate measures assurng correct operaton of the unt must be appled. To avod the unt of mproper ndcatons keep recommendatons lsted below. Avod common (parallel) leadng of sgnal cables and transmsson cables together wth power supply cables and cables controllng nducton loads (e.g. contactors). Such cables should cross at a rght angle. Contactor cols and nducton loads should be equpped wth ant-nterference protecton systems, e.g. RC-type. Use of screened sgnal cables s recommended. Sgnal cable screens should be connected to the earthng only at one of the ends of the screened cable. In the case of magnetcally nduced nterference the use of twsted couples of sgnal cables (so-called sprals ) s recommended. The spral (best f shelded) must be used wth RS-485 seral transmsson connectons. In the case of nterference from the power supply sde the use of approprate antnterference flters s recommended. Bear n mnd that the connecton between the flter and the unt should be as short as possble and the metal housng of the flter must be connected to the earthng wth largest possble surface. The cables connected to the flter output must not run n parallel wth cables wth nterference (e.g. crcuts controllng relays or contactors). Connectons of power supply voltage and measurement sgnals are executed usng the screw connectons on the back of the unt s housng. max. 2 mm 6-7 mm! Fgure 4.4. Method of cable nsulaton replacng and cable termnals All connectons must be made whle power supply s dsconnected! Flow sensor connected to current nput of flow meter should be nstalled 9

10 accordngly to local regulatons, and recommendatons of the producer. Correct nstallaton and applcaton of flow sensor s essental for correct operaton of flow meter type SPP-94. Power supply (dependng on verson) R1 R2 Power +24V +5%, -10% RS Imax = 100mA supply optonal ACTIVE GND DATA+ (dependng on verson) current output + Uo - DATA (optonal) R4 +24V +5%, -10% RS Imax = 100mA GND DATA+ DATA- R3 (optonal) + Uo n.c. n.c. Fgure 4.5. Termnals descrpton (relay outputs, no current output verson) + n.c. GND 0-20mA 4-20mA R1 R2 n.c. n.c n.c. n.c. Fgure 4.6. Termnals descrpton (relay outputs, devce wth current output) + n.c. GND 0-20mA 4-20mA 10

11 Power supply (dependng on verson) OC1 OC2 + - OC3 (optonal) OC1 OC4: Umax = 30V DC, Imax = 30mA, Pmax = 100mW +24V +5%, -10% RS (optonal) Imax = 100mA GND DATA+ OC4 + Uo - DATA n.c. n.c. + n.c. GND 0-20mA 4-20mA Fgure 4.7. Termnals descrpton (OC-type outputs) L N 1 2 FUSE FUSE R1 R2 R R4 3 4 L N Dependng on verson: V AC/DC or V DC; V AC Fgure 4.8. Connecton of power supply and relays! Contacts of relay outputs are not equpped wth spark suppressors. Whle use the relay outputs for swtchng of nductve loads (cols, contactors, power relays, electromagnets, motors etc.) t s requred to use addtonal suppresson crcut (typcally capactor 47nF/ mn. 250VAC n seres wth 100R/5W resstor), connected n parallel to relay termnals or (better) drectly on the load. In consequence of usng the suppresson crcut, the level of generated electromagnetc dsturbances s lower, and the lfe of relay contacts rses. 11

12 a) b) L L !! N N Fgure 4.9. Examples of suppresson crcut connecton: a) to relay termnals; b) to the nductve load OC Logc controller + - voltage nput 24 V Uo OC LED 10 ma R 2k2 Uo Fgure Example of OC-type outputs connecton 12

13 optonal ACTIVE current output Logc controller + current nput 4-20 ma - Fgure Example of current outputs connecton (for devce wth current output only) 4.4. MAINTENANCE The unt does not have any nternal replaceable or adjustable components avalable to the user. Pay attenton to the ambent temperature n the room where the unt s operatng. Excessvely hgh temperatures cause faster ageng of the nternal components and shorten the fault-free tme of unt operaton. In cases where the unt gets drty do not clean wth solvents. For cleanng use warm water wth small amount of detergent or n the case of more sgnfcant contamnaton ethyl or sopropyl alcohol.! Usng any other agents can cause permanent damage to the housng. Product marked wth ths symbol should not be placed n muncpal waste. Please check local regulatons for dsposal and electronc products. 13

14 5. FRONT PANEL DRIPTION Thresholds exceedng LED ndcators (R) R1 R2 R3 R4 Σ total flow mode LED ndcator (Σ) dsplay Σ FL programmng pushbuttons Symbols and functons of push-buttons: Symbol used n the manual: [/] Functons: Enter to man menu ( press and hold by at least 2 sec.) Ext the current level and Enter to prevous menu (or measure mode) Cancel the changes made n parameter beng edted Symbol used n the manual: [] Functons: Start to edt the parameter Enter to the sub-menu, Confrmaton of changes made n parameter beng edted Symbol used n the manual: [^] [v] Functons: Change of the present menu, Modfcaton of the parameter value, Change of the dsplay mode. Σ FL Symbol used n the manual: [Σ/FL] Functons: swtchng of the dsplay between total and nstantaneous measurements 6. PRINCIPLE OF OPERATION After turnng the power supply on, devce ID and software verson are showed on the dsplay, next the controller goes to the measurement mode MEASUREMENT MODE In the measure mode, devce dsplays total flow or nstantaneous flow (equvalent to nput current. Instantaneous flow (flow rate) s dsplayed n unts defned by parameter F unt (L or m 3 ) and Ftunt (mn., sec. or h), wth resoluton defned by Pont (max. 3 dgts after decmal pont). Devce converts measured current to selected unts accordngly to converson 14

15 characterstc selected by user. The measurement range equal to the nomnal range s called: nomnal measurement range, and the measurement range equal to the extended nomnal range s called: permssble measurement range (Fgure 6.1, 6.2). Lo r parameter H r parameter nomnal measurement range 4 ma 20 ma permssble measurement range Fgure 6.1. Defntons of measurement ranges n mode 4 20mA If the result of measurement exceeds the permssble measurement range, warnng -H- or -Lo- s dsplayed rather than nput sgnal, depends on exceeded value (see descrpton of Lo r H r parameters, paragraph FLouu menu). H r parameter nomnal measurement range 0 ma 20 ma permssble measurement range Fgure 6.2. Defntons of measurement ranges n mode 0 20mA If nput current range s strongly overloaded, devce can dsplay mproper results Total flow s dsplayed n unts defned by parameter t unt (L or m 3 ), wth resoluton defned by parameter t PrEc (max 3 dgts after decmal pont). If total flow counter overflows, warnng tot ov s dsplayed alternatvely wth maxmum counter value. Total flow counter can be zeroed usng Clrtot opton of total submenu, or va RS-485 nterface by wrtng of value 0000h to any of total flow counter result regsters. Parameter CutoFF, allows to defne nput current value, below whch total amount of flow s not counted (ncremented). If CutoFF s set to value dfferent than zero and f nput current s lower than ths value, then nstantaneous flow (flow rate) s dsplayed, but TOTAL COUNTER IS NOT INCREMENTED. 15

16 Cutoff Threshold CT s defned by formulas below: " CutoFF" 20mA CT= 100 for 0 20mA output " CutoFF" 16mA CT = 4 ma for 4 20mA output 100 Swtchng between current flow rate and total flow counter can be done by pressng [Σ/FL] button. Knd of dsplayed value s sgnalsed by Σ LED. It lghts, whle total flow s dsplayed. Functons of [^] and [v] buttons depend on knd of presently dsplayed value: If nstantaneous flow (flow rate) s dsplayed ( LED named Σ s off) user can check man thresholds values. After pressng [^] or [v] button, name of the threshold (e.g. relpr1 ) and hs value wll be dsplayed on the dsplay n alternatng mode. If [^] or [v] wll be pressed n 5 sec agan, the next threshold wll be dsplayed, else the devce comes back to the measurement mode. If a free access s enabled (see descrpton of SECu menu), user can change the value of partcular threshold pressng button [] (see: PARAMETERS EDITION). If partcular parameter has been changed and confrmed n quck vew mode, ts new value s dsplayed n alternatng mode wth parameter name by few seconds. Confrmed changes may be checked or user can swtch vewed parameter pressng [^] or [v] button. If total flow counter value s dsplayed ( LED named Σ s on), and ts length exceeds 6 dgts, buttons [^] and [v] enable swtchng between more and less sgnfcant dgts. Postons of currently dsplayed dgts are sgnalzed by flashng decmal ponts (see example below). Example of swtchng between less and more sgnfcant dgts of total flow result. Let, total counter result be equal : whle less sgnfcant 6 dgts are dsplayed, flashng most left decmal pont sgnalzes that result s longer than 6 dgts, to show more sgnfcant dgts press [^], whle medum dgts are dsplayed both most left and most rght decmal ponts are flashng (Fgure 6.3). Most rght decmal pont sgnalzes than result has less sgnfcant dgts to see these dgts press [v] button. Most left decmal pont sgnalzes addtonal more sgnfcant dgts. Press [^] button to see these dgts. whle most sgnfcant dgts are dsplayed, most rght decmal pont s flashng, and sgnalsng that result has less sgnfcant dgts, to see these dgts press [v]. 16

17 [Σ/FL] [Σ/FL] [Σ/FL] to nstantaneous flow dsplay mode to nstantaneous flow dsplay mode to nstantaneous flow dsplay mode Fgure 6.3. Swtchng between dgts (screens) of total flow result. All accessble parameters (e.g. pulse nput settngs, decmal pont poston) can be changed by enterng the menu (see: DEVICE PROGRAMMING). Use the local keyboard or the remote controller to do t. (Note: all parameters can be remote changed va RS-485 nterface). Countng of pulses and controllng or relays s realsed regardless of operaton mode (after enterng to menu mode countng and controllng s contnued n background DETECTION OF THE PEAK VALUES The SPP-94 flow meter s equpped wth peaks detecton functon. It can detect a peaks of the nput sgnal and dsplay ther values. Presets connected wth ths functon are placed n HOLd menu (see descrpton of HOLd menu). The detecton of the peak can be done f the measured sgnal rases and drops of value at least equal to parameter PEA. Detected peaks are dsplayed durng the tme defned by parameter tme. If a new peak wll be detected whle one s dsplayed, ths new peak wll be dsplayed and dsplay tme counter wll be cleared (Fgure 6.4). If no peaks are detected whle tme tme elapses, devce starts to show the current value of nput sgnal agan. The relays/leds and the current output can be controlled depend on the current value of nput sgnal or the peak value (see HOLd menu). 17

18 measure tme tme PEA PEA real measurement result dsplay value tme Fgure 6.4. Process of peaks detecton 6.3. CONTROL OF THE RELAY OUTPUTS The control of the object (measured sgnal) s done due to nstantaneous flow value (current flow rate) or total flow counter value, and s realzed va relay outputs. Front panel LEDs named R ndcates the state of partcular relay output. If devce s not equpped wth one or more relay outputs, menus refer to ths relays are avalable, but apply to LED ndcators only. In such case LEDs ndcates exceedng of partcular thresholds. Modes of the control can be changed depend on the values of parameters value, SEt P, SEt P2, HYSt, mode, t on, t off, unt and ALArmS (avalable n relay1 relay4 menu). If relay s controlled due to total flow counter value ( value = tot ), addtonal parameters are avalable n menu. Parameters t PrEC and t unt defnng the unt and resoluton of dsplayed thresholds and hysteress of selected relay. Depend on mode parameter, relays can be not used or controlled over one or two thresholds values. If one threshold s used (Fgure 6.5) the relay can be turned on ( mode = on ) or off ( mode = off ) when the nput sgnal value s contaned n zone A. If two thresholds are used (Fgure 6.6) the relay wll be turned on when value of nput sgnal s contaned n zone A ( mode = n ) or zone B ( mode = out ) and turned off f the sgnal s contaned n the second one. 18

19 state of relay/led SEt P parameter zone B zone A measure HYSt parameter Fgure 6.5. One threshold control of the relay/led outputs state of relay/led SEt P or SEt P2 parameter zone B zone A zone B HYSt parameter measure Fgure 6.6. Two threshold control of the relay/led outputs The relay outputs and LEDs (named R) can be controlled depend on both - the current value and the peak value (when peak detecton s actve, for flow rate only) of the nput sgnal. 19

20 One threshold mode Fgure 6.7 presents the prncple of relay outputs operaton for one threshold mode, and an example values of other parameters. a) dsplayed value zone A A measured t A t B t C sgnal t D B B OFF B ON SEt P parameter (expected sgnal value) b) c) d) e) zone B relay state (mode = on t on = 0 t off = 0) relay state (mode = off t on = 0 t off = 0) relay state (mode = on t on > 0 t off > 0) relay state (mode = off t on > 0 t off > 0) closed open open closed HYSt parameter (allowed sgnal devaton) Descrpton: A, B, C, D - ponts where measured sgnal exceeds border values (expected value ± allowed devaton) B ON,B OFF,D ON,D OFF - relays state changes moments: (for t on > 0, t off > 0) t A, t B, t C, t D - tme perods whle nput sgnal s n zone A or zone B C t on parameter open t off parameter open closed closed t off parameter D t on parameter D OFF D ON tme tme tme tme tme Fgure 6.7. Prncple of LED/relay output operaton for one threshold mode Parameter SEt P sets a threshold of the relay, and parameter HYSt sets a hysteress of the relay (Fgure 6.7 a). The relay can change hs state only when nput value exceeds (over or under) border value and t A,t B,t C,t D tmes (Fgure 6.7) are bgger than the tme defned by parameters t on, t off and unt. Border values means values equal threshold+hysteress and threshold-hysteress respectvely. If t on and t off parameters are set to 0, then the relay state wll be changed as soon as nput value exceeds any of the border values (see ponts A and C, Fgure 6.7 a, b, c). If values of t on or/and t off are postve, then relay state wll be turned on f the nput value exceeds the border values and stay bgger (or lower) durng at least t on (see ponts B ON, D ON, Fgure 6.7 a, d, e). Smlarly, the relay wll be turned off f tme t off elapse snce the nput sgnal value exceeds any of the border values (see ponts B OFF, D OFF, Fgure 6.7 a, d, e). 20

21 If t A,t B,t C or t D (when nput sgnal stay n zone A or zone B) are lower than parameters t on or t off, the relay wll not change hs state (see ponts A and C, Fgure 6.7 a, d, e). The state of relay output whle the nput value exceeds the border values (ponts A, B, C, D) s descrbed by parameter mode. The relay can be turned on ( mode = on ), or turned off ( mode = off ) when nput sgnal value s contaned n zone A (Fgure 6.7 a). The parameter AL allow user to set the relay output behavour n crtcal stuatons (e.g. Input values exceeds permssble nput range). User can select that the relays wll be turned on, turned off,or not changed n crtcal stuatons. All parameters connected wth relay outputs are descrbed n paragraph relay1 menu Two thresholds mode dsplayed value t A t B t C t D measure zone B C OFF C ON d sgnal C t E HYSt parameter B ON a) zone A A B B OFF D E E OFF SEt P or SEt P2 parameter E ON HYSt parameter zone B b) c) d) e) relay state (mode = n t on = 0 t off = 0) relay state (mode = out t on = 0 t off = 0) relay state (mode = n t on > 0 t off > 0) relay state (mode = out t on > 0 t off > 0) closed open t on parameter t off parameter open closed closed open t off parameter t on parameter closed open t on parameter t off parameter tme tme tme tme tme Descrpton: A, B, C, D, E - ponts where measured sgnal exceeds border values (expected value ± allowed devaton) B ON,B OFF,C ON,C OFF,E ON,E OFF - relays state changes moments: (for t on > 0, t off > 0) t A, t B, t C, t D, t E - tme perods whle nput sgnal s n zone A or zone B Fgure 6.8. Prncple of LED/relay output operaton for two thresholds mode 21

22 Fgure 6.8 presents the prncple of relay outputs operaton for two thresholds mode, and an example values of other parameters. In ths mode parameter SEt P2 s accessble n common wth SEt P2, ths parameter descrbes a second threshold of the relay output. The parameters HYSt, mode, t on, t off, unt and ALArmS are connected wth both SEt P and SEt P2 thresholds. Whle the controllng process, the relay output changes hs state depends of both SEt P and SEt P2 thresholds n smlar way as t was descrbed n one threshold mode. If two threshold mode s used, mode parameter defnes state of the relay output when the nput value occurs n a partcular zone defned by border values of both thresholds. The relay can be turned on f the nput value s contaned n zone A ( mode = n ) or zone B ( mode = out ) and turned off f t s contaned n the second one (Fgure 6.8). The sequence of thresholds SEt P and SEt P2 can be set n any order, due to the control of relay outputs s done depend on dfference between thresholds values (zone A ) and outsde of threshold values (zone B). 7. DEVICE PROGRAMMING The devce menu allow user to set all parameters connected to operaton of measurement nput, control modes, crtcal stuatons behavour, communcaton va RS-485 and access settngs. The meanng of the partcular parameters s descrbed n paragraph DRIPTION. Some of the parameters can be accessed wthout menu enterng (quck vew mode). If current flow s dsplayed ( LED named Σ s off) user can check man thresholds values. After pressng [^] or [v] button, name of the threshold (e.g. relpr1 ) and hs value wll be dsplayed on the dsplay n alternatng mode. If [^] or [v] wll be pressed n 5 sec agan, the next threshold wll be dsplayed, else the devce comes back to the measurement mode. If a free access s enabled (see descrpton of SECU menu), user can change the value of partcular threshold pressng button [] (see: PARAMETERS EDITION). If partcular parameter has been changed and confrmed n quck vew mode, ts new value s dsplayed n alternatng mode wth parameter name by few seconds. Confrmed changes may be checked or user can swtch vewed parameter pressng [^] or [v] button PROGRAMMING To enter man menu (beng n the measurement mode) operator must to press and hold at least 2 sec. [/] button. If the user password s defned (see parameter SEtcod, menu SECU ), operator have to enter correct one before proceedng to menu optons. Enterng of the passwords s smlar to the edton of numerc parameters (see: PARAMETERS EDITION ), however presently edtng dgt s showed only on the dsplay, other dgts are replaced by - sgn. After enterng of last dgt of the password frst menu poston wll be dsplayed (f the password s correct) or warnng Error n other case. 22

23 ! Pay attenton when devce parameters are beng changed. If t s possble, turn off controlled nstallaton (machne). Functons of the buttons whle sub-menu and parameters choce: Selecton of sub-menu or parameter for edtng. Name of selected tem (submenu or parameter) s dsplayed. Operaton of [] button depend on present menu poston: f the name of some sub-menu s dsplayed - enter ths sub-menu; name of the frst parameter (or next level sub-menu) s dsplayed, f the name of some parameter s dsplayed - enter the edton of ths parameter; present value of the parameter s dsplayed, [/] button allow user to ext present menu level and goes to upper level menu (or measurement mode). After about 1 mn. snce last use of the buttons, devce exts the menu mode and returns to the measurement mode (only f no parameters are n edtng mode) PARAMETERS EDITION To start edton of any parameter user should select name of desred one usng [^] [v] buttons and then press [] Numerc parameters (dgt change mode) Numercal parameters are dsplayed as decmal numbers. The mode of ts new value enterng depends on chosen edt method ( see parameter Edt ). In mode by dgt ( Edt = dg ) pressng one of the keys [^] or [v] causes change of current poston (flashng dgt) or the sgn (+/-). Short pressng of the [] button causes change of the poston (dgt). Press [] at least 2 seconds to accept the changes, after that queston SEt? s dsplayed, and user must to confrm (or cancel) the changes. To conform changes (and story t n EEPROM) press [] button shortly after SEt? s dsplayed. To cancel the changes press [] button shortly after SEt? s dsplayed. After that devce returns to the menu Numerc parameters (slde change mode) In slde change mode ( Edt = Sld ), buttons [^] and [v] has dfferent functons. To ncrease edted value press (or press and hold) [^] button only, the ncreasng became quckest as long as button [^] s pressed. To slow down the ncreasng, button [v] can be used. If [v] s pressed shortly (and button [^] s stll pressed), ncreasng slow down for a moment only, f [v] s pressed and held whle button [^] s stll pressed the ncreasng slow down and wll be kept on lower speed. To decrease edted value press (or press and hold ) [v] button only. The decreasng became quckest as long as button [v] s pressed. To slow down the decreasng, button [^] can be used. If [^] s pressed shortly (and button [v] s stll pressed), decreasng slow down for a moment only, f [^] s pressed and held whle button [v] s stll pressed the decreasng slow down and wll be kept on lower speed. 23

24 Press [] at least 2 seconds to accept the changes, after that queston SEt? s dsplayed, and user must to confrm (or cancel) the changes. To conform changes (and story t n EEPROM) press [] button shortly after SEt? s dsplayed. To cancel the changes press [] button shortly after SEt? s dsplayed. After that devce returns to the menu Swtch parameters ( LIST type) Swtch parameters can be descrbed as a sets of values (a lsts) out of whch only one of the optons avalable on the lst can be selected for the gven parameter. Optons of swtchng parameter are selected usng [^], [v] keys. Short pressng of [] causes n dsplayng of the acknowledge queston ( SEt? ). If key [] s pressed agan, the changes are accepted, stored n EEPROM end the edton process fnshed. Pressng the key [] after SEt? causes n cancellng of made changes and returnng to menu. Functons of buttons when edtng numerc and swtchng parameters: Whle edtng numerc parameter: change of current (flashng) dgt slde change of value (acceleraton, deceleraton, drecton change) Whle edtng swtch parameter - selecton of swtch parameter. If numercal parameter s beng edted, a short press of [] button change edted poston. A long press of [] button (at lest 2 sec.) causes of dsplay a SEt? ask, whch allow user to make sure f change of the parameter value s correct. If swtch parameter s beng edted, a short press of [] button causes of dsplay a SEt? ask. When [] button s pressed agan (whle SEt? s dsplayed) the new value of the parameter s stored n EEPROM memory. Pressng ths button operator can cancel the changes done up to now (f they were not approved by [] button after the SEt? ask) and come back to menu 7.3. DRIPTION password checkng. If some password dfferent from 0000 s set, then every enter to man menu follows the enterng of password. If entered password s correct then frst menu poston wll be dsplayed else warnng Error, and unt returns to measurement mode. Due to problem wth drect dsplayng of m letter, t s exchanged wth specal sgn. Independently n user manual letter m s used to make t more readable (example: mode ). 24

25 relay1 menu Ths menu allows to confgure the operaton mode of relays and LEDs marked R (e.g. R1 ). If there are few relay outputs avalable, then every output has ts own confguraton menu (e.g. menu relay2 for relay (LED) R2 ). Prncple of the relays operaton s descrbed n paragraph CONTROL OF THE RELAY OUTPUTS. value The relay outputs and LEDs (named R) can be controlled by due to current flow rate, stored peak value, or total flow counter, If devce s not equpped wth one or more relay outputs, menus refer to ths relays are avalable, but apply to LED ndcators only. In such case LEDs ndcates exceedng of partcular thresholds. - parameter defnng knd of result usng to control state of ths relay. It can be set to one of two values: Flo tot - relay s controlled due to current flow rate value or stored peak of flow rate (see Hold menu), - relay s controlled due to total counter result SEt P SEt P2 HYSt - frst threshold of the relay (range ). Threshold s the medum value of relay hysteress. - second threshold of the relay (range ). Ths threshold s accessble when mode parameter s set to n or out value. Threshold s the medum value of relay hysteress. - hysteress of relay (range ). Full hysteress of the relay s equal to 2x HYSt parameter. The relay state can change when an nput sgnal s out of threshold-hysteress to threshold+hysteress zone. Presented parameters should be set to ensure that SEt P + HYSt, SEt P2 + HYSt, SEt P - HYSt or SEt P2 - HYSt do not exceeds the measure range. Addtonally, n two threshold mode ( mode = n or out ), the hysteress for both thresholds must not cover each other (n other case relay can't change hs state). t PrEc - decmal pont poston (dsplayng precson of the relay thresholds ) when relay s controlled due to total flow counter result. It can be set to: Decmal pont poston s changed by [^], [v] buttons. t unt - the unt of relay thresholds and hysteress when relay s controlled due to total flow counter result. It can be set to: lt. - Ltres m 3 - cubc meters 25

26 Parameters t PrEc and t unt are avalable only f total flow counter s used to control relay output ( value = tot ). When current flow rate s used to control relays, the unt and precson of the thresholds and hysteress are defned by parameters F unt, Ftunt and F PrEc of menu Flouu. mode - relay operaton mode: noact - the relay s not actve (permanent turned off) on - one threshold mode, the relay s turned ON when nput sgnal exceeds SEt P + HYSt value, and s turned off back when the nput sgnal became lower than SEt P - HYSt, off n Out - one threshold mode, the relay s turned OFF when nput sgnal exceeds SEt P + HYSt value, and s turned on back when the nput sgnal became lower than SEt P - HYSt, - two threshold mode, the relay s turned ON when the nput sgnal s bgger than lower threshold + HYSt and lower than bgger threshold - HYSt, and turned off when the nput sgnal s contaned n the second zone. The bgger threshold means bgger one of SEt P and SEt P2 thresholds, the lower threshold means lower one of SEt P and SEt P2 thresholds. - two threshold mode, relay s turned OFF when the nput value s bgger than bgger threshold + HYSt and lower than lower threshold HYSt, and turned on when the nput sgnal s contaned n the second zone. The bgger threshold means bgger one of SEt P and SEt P2 thresholds, the lower threshold means lower one of SEt P and SEt P2 thresholds. modbus - the relay s controlled va RS-485 nterface, ndependently on the nput sgnal. LEDs lght when relays are closed, ndependently of relays' mode. When power supply fal, unt do not store relays state selected by RS-485 nterface. t on - turn on delay tme, the relay s turned on wth delay equal t on f the nput value exceeds approprate border value (defned wth threshold and hysteress), at least t on tme. t on range , defned wth 0.1 sec. resoluton. Unt of ths parameter s set by unt parameter. t off - turn off delay tme, the relay s turned off wth delay equal t off f the nput value exceeds approprate border value (defned wth threshold and hysteress), at least t off tme. t off range , defned wth 0.1 sec. resoluton. Unt of ths parameter s set by unt parameter. 26

27 unt If tme when the nput sgnal exceeds some border value s shorter than t on or t off tme, the relay do not change hs state (see paragraph: CONTROL OF THE RELAY OUTPUTS). - unt of tme for t on t off parameters. Can be set on one of two values: mn SEC - mnutes, - seconds. ALArmS - ths parameter defnes the relay reacton when some crtcal stuatons occurs: nochan on off - relay do not change hs state, - relay wll be turned on, - relay wll be turned off. If parameter mode s set to on, off, n or Out the crtcal stuaton means that permssble nput frequency s exceeded. If parameter mode s set to modbus, the crtcal stuaton means communcaton delay (when no data s receved) longer than mbtme parameter (see descrpton: rs-485 menu) beep menu Ths menu contans optons connected wth acoustc sgnal : "AL "r1 "r2" "r3" "r4" - f ths parameter s set to on, any crtcal stuaton causes by acoustc sgnal - f ths parameter s set to on, actvaton of relay R1 causes by acoustc sgnal - f ths parameter s set to on, actvaton of relay R2 causes by acoustc sgnal - f ths parameter s set to on, actvaton of relay R3 causes by acoustc sgnal - f ths parameter s set to on, actvaton of relay R4 causes by acoustc sgnal Acoustc sgnal (turned on by e.g. relay ) can be turned off by pressng of any button FLouu menu Ths menu presets the measurement nput and allows confguraton of current flow rate dsplayng mode: I type - type of the nput / sensor. Ths parameter can be set to values: 0-20, current nputs of 0 20mA or 4 20mA of measurement range respectvely. Dsplayed values are defned by parameters Lo CAL, H CAL (or by user defned characterstc ponts) and parameter Pont. 27

28 I CHAr - ths opton sets type of the converson characterstc. Ths preset s essental when meter cooperates wth flow sensor, whch changes t's output current accordngly to characterstc other than lnear. It can be set to: LnEAr - lnear Square - square Sqroot - square root When one of those characterstcs s chosen dsplay range s defned by Lo CAL and H CAL. USEr User defned characterstc. Maxmal length 20 ponts. Every pont s defned by user. Addng, Edtng and Deletng of ponts s done by optons AddPnt, EdtPnt, delpnt ( FLouu menu) respectvely. If user defned characterstc s selected, and f number of defned ponts s lower than 2 then warnng Errc s dsplayed n measurement mode. The process of dsplayed result calculaton s descrbed n detals n DISPLAY VALUES CALCULATION paragraph. Pont - decmal pont poston (precson of flow rate dsplayng). It can be set to: Decmal pont poston s changed by [^], [v] buttons. Change of dsplayng precson can requre approprate correcton of relays thresholds and hysteress. These parameters are not updated automatcally, due to settngs of Pont parameter. F unt - the unt of volume (cubc measure) used for flow rate dsplayng. It can be set to: ( lt. - ltres, or m 3 - cubc meters ). Unts expressed by F unt and t unt are conventonal, and can be exchanged to any other par of unts e.g. for powders t can be klogram and tonne. Ftunt - tme unt used for flow rate dsplayng.it can be set to: ( SEC - seconds, mn - mnutes or hour - hours). The unt used to dsplayng the flow rate, depend on parameters F unt and Ftunt smultaneously, for example: L/mn or m 3 /h etc. Lo CAL H CAL These parameters descrbe the values dsplayed for mnmum and maxmum nput current. If nput type s set to 4-20 ma (0-20mA) Lo CAL parameter defnes the value dsplayed when nput current s equal 4 ma (0mA), and H CAL parameter defnes the value dsplayed for 20 ma of nput current. Avalable range for these parameters: If user defned characterstc s selected (parameter I CHAr = USEr ) the parameters Lo CAL and H CAL are not avalable for modfcaton, due to ther values are calculated from defned characterstc.

29 AddPnt - Ths menu allow user to add sngle pont to the user defned characterstc. After selecton of ths opton devce wats for X and Y coordnates of new pont. Modfcaton of the coordnates s done accordngly to numercal parameters edton. Coordnate X defnes the percentage rato of nput current to selected current range. The X range: -99,9 199,9. Coordnate Y defnes dsplayed value for partcular X value. The Y value can be changed n range: , decmal pont poston depend on Pont parameter ( FLouu menu). User can not enter two ponts wth the same value of X coordnate. If user trays to do t, Err warnng s dsplayed. To modfy any defned pont use EdtPnt opton. To dstngush X and Y coordnates, f X coordnate s dsplayed an addtonal decmal pont on utmost rght poston s dsplayed. If user defned characterstc s selected, and f number of defned ponts s lower than 2 then warnng Errc s dsplayed n measurement mode. delpnt - ths opton allows user to delete any of the ponts of the user defned characterstc. After selecton current number of ponts of the user defned characterstc s dsplayed for about approx. 1,5 sec. After that devce wats for selecton of pont beng deleted (by [^], [v] buttons). The short pressng of [] button causes by swtchng between X and Y value of the dsplayed pont. The long press (press and hold at least 2 sec) of [] button causes by dsplayng del? ask. If [] button s pressed agan, current pont s deleted and new updated number of ponts of the user defned characterstc s dsplayed. EdtPnt - ths opton allows user to modfy of partcular pont of the user defned characterstc. After selecton current number of ponts of the user defned characterstc s dsplayed for about approx. 1,5 sec. After that devce wats for selecton of pont beng edted (by [^], [v] buttons). The short pressng of [] button causes by swtchng between X and Y value of the dsplayed pont. The long press (press and hold at least 2 sec) of [] button causes by enterng to edt the selected coordnate of the pont. Modfcaton of the coordnates s done accordngly to numercal parameters edton. AddPnt, delpnt and EdtPnt optons are avalable only f the user defned characterstc s used (t means when parameter I CHAr = USEr ). CutoFF - ths parameter, allows to defne nput current value, below whch total amount of flow s not counted (ncremented), but current flow rate s dsplayed. Parameter Cutoff s expressed as percentage value of nput current nomnal range (0-20mA or 4-20mA), and can be set n range %, If CutoFF s set to value dfferent than zero and f nput current s lower than ths value, then nstantaneous flow (flow rate) s dsplayed, but TOTAL COUNTER IS NOT INCREMENTED. Cutoff Threshold CT s defned by formulas below: 29

30 " CutoFF" 20mA CT= 100 for 0 20mA output " CutoFF" 16mA CT = 4 ma for 4 20mA output 100 Lo r, H r - These parameters defne the expanson of nomnal range n percent. They determne the permssble range of nput currents (Fgure7.1). The permssble range allow user to exceed the nomnal range of nput current. If nput value s contaned n the permssble range a proper result s dsplayed. If nput current exceeds ths range (defned by Lo r and H r ), -Lo- or -H- warnng s dsplayed depend on nput current value. Lo r = 75,0% (3 ma) I mn nomnal measurement range (4-20mA) H r = 5,0 % (1 ma) I max [ ma ] permssble measurement range dsplay message -Lo- measurement result s dsplayed regardless on nomnal range exceedng dsplay message -H- Fgure 7.1 Example of defnton of permssble range of nput currents - Lo r and H r parameters ( 4-20 mode) The Lo r parameter s mportant f nput s set to 4-20 mode only, and determnes lower border of the permssble range. If nput s set to 0-20 mode, lower border of the permssble range s always 0mA. If nput s set to 4-20 mode, the lower border s calculated due to expresson: I mn = 4 ma - 4 ma Lo r %. The Lo r value can be set from 0 to 99.9%. Parameter H r determnes the upper border of the permssble range accordngly to the expresson (for both modes): I max = 20 ma + 20 ma H r %. The value of H r can be set from 0 to 19.9% In example no 1 of the DISPLAY VALUES CALCULATION paragraph the procedure of the permssble nput range determnng s presented n detals. 30

31 If the measurement value do not exceeds permssble measurement range but dsplayed value exceeds range ( ), the warnng -Ov- s dsplayed rather than the calculated result total menu Ths menu allows to confgure total flow counter dsplayng mode. t PrEc - decmal pont poston (precson of total flow counter). It can be set to: Decmal pont poston s changed by [^], [v] buttons. t unt - the unt of volume (cubc measure) used for total flow counter dsplayng. It can be set to: ( lt. - ltres, or m 3 - cubc meters ). Unts expressed by F unt and t unt are conventonal, and can be exchanged to any other par of unts e.g. for powders t can be klogram and tonne. Clrtot - ths opton allows zerong of total flow counter. After selecton of ths opton ask CLEAr? s dsplayed. If user press [] total flow counter s cleared, else acton s cancelled Zerong of total flow counter s possble va RS-485 nterface too. It can be done as wrte of 0000h to any one of regsters referred to total flow counter (09h 0Ch) usng RS 485 nterface. To protect total flow counter of unauthorsed zerong, t s recommended to set password to menu access (see menu SECU ) Int d parameter Ths Parameter defnes type of the value dsplayed after power on the meter. It s possble to set t to: Flo - current flow rate (nstantaneous flow), tot - lowest part of total flow counter (less sgnfcant dgts), tot2 - medum part of total flow counter, tot3 -hghest part of total flow counter (most sgnfcant dgts), If value tot2 or tot3 s selected, meter automatcally swtches dsplay to nonzero part of total counter result. Flashng (or not, f result s shorter than 6 dgts) decmal ponts ndcates whch one part s actually dsplayed FLtEr menu Ths menu contans parameters referred to addtonal data (result) fltraton. value - ths parameter sets fltraton rate. It can be set to values from 0 (no fltraton ) to 5 (strongest fltraton tme wndow about 3.5 sec.). 31