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SWI-94

1. m Press and hold at least 2 seconds 0 4 digit user password entering if it is different from 0000 Je E ZS ra S Parameter lt Eray zi SEP Lee edit 7 EE edition se ELAy2 _s Options similar EE Beds U y to rELAy1 menu t las GW ei HYSt II Ki z z i bEEPEr AL Parameter cg lt modE R f SS edition 7 Fa ri I bei ton II t i ELI 2 1 LJ toFF II e A i CALibr a gt rESOL _B Po nel unit I A Esc 4 H Sa H rANGE I ALArmS II CtYPE II rLoAd I d S 7 Visible only if C tYPE dAtA ml rout ben Lg S ZEro i Visible only if Iw SS TU oe tYPE rEAL Lei FiLtEr J EG S Baas LB output gt OUtmod res As A ae or BRT A MA A M NO fa N m OUELO 1 y OUtHI II LB button gt bZEro GE Parameter t r 7 S edition le Lor I m btArE I t i a a 7 I Lei Hir I i AM lt bnEtt I AL Ju M 5 optional rron Ee E EE S n 25 H See next page 29 User manual for weight meter SWI 94 See previous page 30 Parameter e SS edition Ga
2. CJ NERELI Figure 4 2 Installing of brackets and dimensions of connectors 115 mm Ea 7 CIE 67 mm Figure 4 3 Minimum distances when assembly of a number of units 4 3 CONNECTION METHOD Caution AN Installation should be conducted by qualified personnel During installation all available safety requirements should be considered The fitter is responsible for executing the installation according to this manual local safety and EMC regulations The unit is not equipped with an internal fuse or power supply circuit breaker Because of this an external time delay cut out fuse with minimal possible nominal current value must be used recommended bipolar max 2A and a power supply circuit breaker located near the unit In the case of using a monopolar fuse it must be mounted on the phase cable L User manual for weight meter SWI 94 N The power supply network cable diameter must be selected in such a way that in the case of a short circuit of the cable from the side of the unit the cable shall be protected against destruction with an electrical installation fuse Wiring must meet appropriate standards and local regulations and laws In order to secure against accidental short circuit the connection cables must be terminated with appropriate insulated cable tips Tighten the clamping screws The recommended tightening torque is 0 5 Nm Loose screws
3. Default settings SEt 4 A M SEtCod N EE S So rS 485 R gt Addr Gi t oi bAud I D mw mbAccE II l z E3 Parameter H be Editt EP eds 5 edition Lo mbtimE 11 t resp u 4 digit special password entering H E SS dEFS CG gt On gt D D L Rees restoring User manual for weight meter SWI 94 8 CURRENT OUTPUT VALUE CALCULATION Let the current output parameters be modE on OUt LO 100 OUt HI 200 Lor 5 0 Hir 5 0 Parameters Lo r and Hi r define working range of current output to 3 8 21 mA Output current will be calculated for three displayed values D a D 17 5 According to formula from page 25 lout 17 5 10 0 20 0 10 0 x 16 mA 4 mA 0 75 16 4 16 mA Calculated l do not exceeds the output working range 3 21 mA b D 20 5 According to formula from page 25 lout 20 5 10 0 20 0 10 0 x 16 mA 4 mA 1 05 16 4 20 08 mA Calculated l do not exceeds the output working range 3 21 mA c D 30 0 According to formula from page 25 lout 30 0 10 0 20 0 10 0 x 16 MA 4 mA 2 16 4 36 mA Calculated l exceeds the output working range 3 21 mA so current output will generate current equal to the upper border of range defined by parameter Lo r i Hi r it means 21 mA 9 S
4. OFF disabled on enabled btArE enable of tare function button T OFF disabled on enabled b nett enable of presentation mode switching gross net button B N J OFF disabled on enabled 7 3 6 briGHt parameter This parameter allows user to set bright of the LED display bright can be set to conventional values from 1 to 8 7 3 7 SEtCod parameter User password 4 digits number If this parameter is set at value 0000 user password is turned off If the user do not remember his password the access to the menu is possible by the one use password To get this password please contact with Marketing Division Single use password can be used only one time after that it is destroyed Entering this password causes in clearing of user password it means sets the user password to 0000 The one use password can be used ONE TIME ONLY it is impossible to use it again The one use password can be restored by Service Division only 26 User manual for weight meter SWI 94 7 3 8 rS 485 menu This menu is connected with RS 485 interface and sets his properties Addr this parameter defines the address of the device accordingly to Modbus protocol It can be set in range from 0 to 199 If the value 0 is set then device responds to frames with address 255 FFh bAud this parameter d
5. modE in or out the hysteresis for both thresholds must not cover each other in other case relay can t change his state relay operation mode noACt the relay is not active permanent turned off on one threshold mode the relay is turned ON when input signal exceeds SEt P HYSt value and is turned off back when the input signal became lower than SEt P HYSt OFF one threshold mode the relay is turned OFF when input signal exceeds SEt P HYSt value and is turned on back when the input signal became lower than SEt P HYSt in two threshold mode the relay is turned ON when the input signal is bigger than lower threshold HYSt and lower than bigger threshold HYSt and turned off when the input signal is contained in the second zone The bigger threshold means bigger one of SEt P and SEt P2 thresholds the lower threshold means lower one of SEt P and SEt P2 thresholds Out two threshold mode relay is turned OFF when the input value is bigger than bigger threshold HYSt and lower than lower threshold HYSt and turned on when the input signal is contained in the second zone The bigger threshold means bigger one of SEt P and SEt P2 thresholds the lower threshold means lower one of SEtP and SEt P2 thresholds modbuS the relay is controlled via RS 485 interface independently on the inp
6. User manual for weight meter SWI 94 1 Read of the displayed value measurement and status the device address 01h ADDR FUNC REG H L COUNT HE CRC LH 01 03 00 01 00 03 54 OB a The answer we assume that the measure result is not out of range ADDR FUNC BYTE C DATA H1 L1 DATA H2 L2 DATA H3 L3 CRC LH 01 03 06 00 00 2A B4 00 01 86 AO DATA H1 L1 reg O1h 1 high word of measurement value DATA H2 L2 reg 02h 86A0h low word of measurement value DATA H3 L3 reg 03h 0 measurement status In this example measurement value is equal 186A0h 100 000 in decimal format Decimal point position is not included in measurement value reg 01h and 02h Decimal point position can be read from reg 04h b The answer if an error occur ADDR FUNC ERROR CRC L H 01 83 40 40 co ERROR error code 40h bottom border of the measurement range is exceeded 2 Read of device ID code ADDR FUNC REG H L COUNT H L CRC L H 01 03 00 21 00 01 D4 00 The answer ADDR FUNC BYTE C DATA H L CRC L H 01 03 02 20 E6 20 OE DATA identification code 20E6h 36 User manual for weight meter SWI 94 3 Change of the device address from 1 to 2
7. this function allows to storing momentary value as zero of recalculation characteristic Storing is done directly after pressing of ENTER button FiLtEr this parameter defines input signal filtration rate It can be changed in range from O lowest filtration to 5 highest filtration Bigger filtration level causes slower changes of measurement results because measurements are realised with longer time interval While fast changes of input signal weight high value of FiLtEr can cause degradation of measurement precision Procedure of theoretical calibration Set parameter C tYPE dAtA Set required measurement displaying resolution rESOL parameter Set proper working range of measurement input rAnGE parameter Set required values of parameters r LoAd and r out Unload scale get weight off from a scale if it was loaded Make zeroing using S Zero function NA PH ME After this procedure device is ready to work Procedure of dead weight calibration Set parameter C tYPE rEAL Set required measurement displaying resolution rESOL parameter Set proper working range of measurement input rAnGE parameter Unload scale get weight off from a scale if it was loaded Make zeroing using S Zero function Load scale with known weight Enter the value of known calibration weight using LoAd function NOAKES After this procedure devi
8. write to reg 20h ADDR FUNC REG H L DATA H L CRC LH 01 06 00 20 00 02 09 C1 DATA H 0 DATA L new device address 2 The answer the same as the message ADDR FUNC REG H L DATA H L CRC L H 01 06 00 20 00 02 09 C1 4 Change of baud rate of all devices connected to the net BROADCAST message ADDR FUNC REG H L COUNT HL CRC LH 00 06 00 22 00 04 29 D2 DATA H 0 DATA L 4 new baud rate 19200 baud Device do not reply to BROADCAST type messages 5 Try to write improper data to register register 04h ADDR FUNC REG H L DATA H L CRC L H 01 06 00 04 00 10 c9 C7 DATA H L written value 10h 16 out of allowable range 0 2 Device response with exception code 03h ADDR FUNC ERR CRC L H 01 86 03 09 C1 ED There is no full implementation of the Modbus Protocol in the device The functions presented above are available only 37 User manual for weight meter SWI 94 11 DEFAULT AND USER S SETTINGS LIST Parameter Description Default value User s value pa Parameters of relay R1 operation rELAy1 menu SEtP Relay first threshold 20 0 21 SEt P2 Relay second threshold 30 0 21 HYSt Hysteresis of relay 0 0 21 modE Operation mode o
9. 5 SIMEX ZMRRETL USER MANUAL for weight meter family SIMPRCT wpe SWI 94 firmware version 2 01 or higher gt 0 lt NET Rie R2 CE Read the user s manual carefully before starting to use the unit Producer reserves the right to implement changes without prior notice 10 11 2009 V 2 01 User manual for weight meter SWI 94 CONTENTS 1 BASIC REQUIREMENTS AND USER SAFETY sssccsssssssssssssssssssssssssssssssssssssssssssssssnssssessesssssnsssesssatessssses 3 2 GENERAL CHARACTERISTICS seo owi baat eege 4 e EE 4 4 DEVICE INSTALLATION 4 3 CONNECTION as OER aiw EA AE EE AE 4 4 MAINTENANCE 5 FRONT PANEL DESCRIPTION 6 PRINCIPLE OF OPERATION 6 1 MEASUREMENT MODE 6 2 CONTROL OF THE RELAY OUTPUTS 6 2 1 One threshold mode 6 2 2 Two thresholds mode RET 7 DEVICE PROGRAMMING 18 7 1 PROGRAMMING MENU 7 2 PARAMETERS EOITION ese ese ese ese ese ee 7 2 1 Numeric parameters digit change model 7 2 2 Numeric parameters slide change mode 7 2 3 Switch parameters LIST type AD 7 3 MENU DESCRIDITION esse ees 20 7 3 1 rELAy1 menu 7 3 2 bEEPEr menu 7 3 3 CALibr menu 7 3 4 OutPUt menu 7 3 5 button menu 7 3 6 briGHt parameter 7 3 7 SEtCod parameter 120 7 3 8 rS 485 men Ar 7 3 9 Edit t parameter 7 3
10. and report the damage to the manufacturer Attached with the unit please find user s manual warranty assembly brackets 2 pieces 4 2 ASSEMBLY A The unit is designed for mounting indoor inside housings control panel switchboard assuring appropriate protection against electric impulse waves Metal housing must be connected to the grounding in a way complying with the governing regulations Disconnect the power supply prior to starting assembly Check the correctness of the performed connections prior to switching the unit on prepared The thickness of the material of which the panel is made must not exceed 5mm When preparing the mounting hole take the grooves for catches located on both sides of the housing into consideration Figure 4 1 Place the unit in the mounting hole inserting it from the front side of the panel and then fix it using the brackets Figure 4 2 The minimum distances between assembly holes axes due to the thermal and mechanical conditions of operation are 115 mm x 67mm Figure 4 3 1 In order to assembly the unit a 90 5 x 43 mm mounting hole Figure 4 1 must be User manual for weight meter SWI 94 a 90 5 mm U 43 mm N sa max 5 mm 1mm gt lt pr N EES SS ss b 92 mm 43 mm 2 max 5 mm Figure 4 1 Mounting hole dimensions a recommended b allowable User manual for weight meter SWI 94
11. can cause fire or defective operation Over tightening can lead to damaging the connections inside the units and breaking the thread In the case of the unit being fitted with separable clamps they should be inserted into appropriate connectors in the unit even if they are not used for any connections Unused clamps marked as n c must not be used for connecting any connecting cables e g as bridges because this can cause damage to the equipment or electric shock If the unit is equipped with housing covers and sealing packing protecting against water intrusion pay special attention to their correct tightening or clamping In the case of any doubt consider using additional preventive measures covers roofing seals etc Carelessly executed assembly can increase the risk of electric shock After the installation is completed do not touch the unit s connections when it is switched on because it carries the risk of electrical shock Due to possible significant interference in industrial installations appropriate measures assuring correct operation of the unit must be applied To avoid the unit of improper indications keep recommendations listed below Avoid common parallel leading of signal cables and transmission cables together with power supply cables and cables controlling induction loads e g contactors Such cables should cross at a right angle Contactor coils and induction loads should be equipped
12. in or Out the critical situation means that nominal input range is exceeded If parameter modE is set to modbuS the critical situation means communication delay when no data is received longer than mbtimE parameter see description rS 485 menu e If option noCHAn is selected for ALArmS parameter behaviour of the relay GD may depend on FiLtEr parameter in some cases If FiLtEr is set to big value and the input signal drops result value of the measure will change slow causes of turning on or off relay due to thresholds values The critical situation is slowly detected so it is impossible to predict the relay state in that situations If parameter AL on the relay will be turned on in the critical situations even if his parameter modE noAC 7 3 2 bEEPEr menu This menu contains options connected with acoustic signal AL if this parameter is set to on any critical situation causes by acoustic signal Tri if this parameter is set to on activation of relay R1 causes by acoustic signal r2 if this parameter is set to on activation of relay R2 causes by acoustic signal Gi Acoustic signal turned on by e g relay can be turned off by pressing of any button 22 User manual for weight meter SWI 94 7 3 3 CALibr menu This menu contains options for measurement input calibration FESOL dis
13. with anti interference protection systems e g RC type _ Use of screened signal cables is recommended Signal cable screens should be connected to the earthing only at one of the ends of the screened cable Inthe case of magnetically induced interference the use of twisted couples of signal cables so called spirals is recommended The spiral best if shielded must be used with RS 485 serial transmission connections Inthe case of interference from the power supply side the use of appropriate anti interference filters is recommended Bear in mind that the connection between the filter and the unit should be as short as possible and the metal housing of the filter must be connected to the earthing with largest possible surface The cables connected to the filter output must not run in parallel with cables with interference e g circuits controlling relays or contactors User manual for weight meter SWI 94 Connections of power supply voltage and measurement signals are executed using the screw connections on the back of the unit s housing Figure 4 4 Method of cable insulation replacing and cable terminals A All connections must be made while power supply is disconnected Notes related to connection of strain bridges N Installation should be made according to local safety and electromagnetic compatibility regulations While installation pay special attention to use of shielded wires proper con
14. 10 dEFS parameter 7 3 11 SErV menu 7 4 MENU STRUCTURE 8 CURRENT OUTPUT VALUE CALCULATION 9 SIGNALISATION OF ERRORS 1 31 10 THE MODBUS PROTOCOL HANDLING we 32 10 1 LIST OF REGISTERS ees esse ese ee ee ee s82 10 2 TRANSMISSION ERRORS DESCRIPTION SD 10 3 EXAMPLES OF QUERY ANSWER FRAMES 35 11 DEFAULT AND USER S SETTINGS LIST ee ese ese ese ese ese ee eek enea ee ee EER az EE EER ee Ee ee KEER KERE Ee Ee ee Ee ANA 38 User manual for weight meter SWI 94 Explanation of symbols used in the manual operation of the device Not complying with the guidelines denoted by this symbol 1 This symbol denotes especially important guidelines concerning the installation and may cause an accident damage or equipment destruction IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS RESPONSIBLE FOR POSSIBLE DAMAGES This symbol denotes especially important characteristics of the unit Read any information regarding this symbol carefully 1 BASIC REQUIREMENTS AND USER SAFETY AM The manufacturer is not responsible for any damages caused by inappropriate installation not maintaining the proper technical condition and using the unit against its destination Installation should be conducted by qualified personnel During installation all available safety requirements should be considered The fitter is responsible for executing the installation according to this ma
15. 200 baud 1 2400 baud 2 4800 baud 3 9600 baud 4 19200 baud 5 38400 baud 6 57600 baud 7 115200 baud 23h5 Yes 0 1 mbAccE parameter in rS 485 menu permission to write registers via RS 485 interface 0 write denied 1 write allowed rESP parameter in rS 485 menu additional response delay 25h Yes 0 5 0 no additional delay 1 10c option 2 20c option 3 50c option 4 100c option 5 200c option mbtimE parameter in rS 485 menu maximum delay between 27h Yes 0 99 received frames 0 no delay checking 1 99 maximum delay expressed in seconds 28h Yes 0 1 AL parameter in DEEP menu 0 off 1 on 29h Yes 0 1 r1 parameter in DEEP menu 0 off 1 on 2Ah Yes 0 1 r2 parameter in DEEP menu 0 off 1 on gt briGHt parameter display brightness MI WE PR 1 the lowest brightness 8 the highest brightness z Edit parameter numerical parameters edit mode 2Fh Yes 0 1 o gier mode 1 SLid mode Parameters of relay R1 operation 30h Yes a np inti 31h Yes 0 999999 SEt P parameter in rELAy1 menu no decimal point included 33 User manual for weight meter SWI 94 Register Write Range Register description 32h Yes 0 99999 HySt parameter in rELAy1 menu no deci
16. E PROGRAMMING Use the local keyboard or the remote controller to do it Note all parameters can be remote changed via RS 485 interface Configuration of the device via menu or RS 485 interface do not stops measures 14 User manual for weight meter SWI 94 6 2 CONTROL OF THE RELAY OUTPUTS The control of the object measured signal is realized via relay outputs Front panel LEDs named R indicates the state of particular relay output Modes of the control can be changed depend on the values of parameters SEt P SEt P2 HYSt modE ton t oFF unit and ALArmS Depend on modE parameter relays can be not used or controlled over one or two thresholds values If one threshold is used Figure 6 1 the relay can be turned on modE on or off modE oFF when the input signal value is contained in zone A If two thresholds are used Figure 6 2 the relay will be turned on when value of input signal is contained in zone A modE in or zone B modE out and turned off if the signal is contained in the second one state of relay LED SEt P parameter gt measure 7 HYSt parameter Figure 6 1 One threshold control of the relay LED outputs state of relay LED PER P or GE P2 a measure HYSt Sw a Figure 6 2 Two threshold control of the relay LED outputs 15 User manual for weight meter S
17. IGNALISATION OF ERRORS Some critical situations are signalised in texts or numbers format like Err NN where NN denotes error number and can be one of values presented below NN Description Meaning 64 Lo Exceeding of measurement range lower border 66 Hi Exceeding of measurement range upper border 68 Short Shortcut on input 70 OPEN Break of input circuit 72 OvEr V Exceeding of input voltage permissible range 73 OvEr C Exceeding of current source maximum load 74 rt Err Converter error 75 no rEF No reference voltage 31 User manual for weight meter SWI 94 10 THE MODBUS PROTOCOL HANDLING Transmission parameters 1 start bit 8 data bits 1 or 2 stop bit 2 bits are send 1 and 2 bits are accepted when receive no parity control Baud rate selectable from 1200 to 115200 bits second Transmission protocol MODBUS RTU compatible The device parameters and display value are available via RS 485 interface as HOLDING type registers numeric values are given in U2 code of Modbus RTU protocol The registers or groups of the registers can be read by 03h function and wrote by 06h single registers or 10h group of the registers accordingly to Modbus RTU specification Maximum group size for 03h and 10h functions can not exceeds 16 registers for single frame Gi The device interprets the broadcast messages but then do not se
18. WI 94 6 2 1 One threshold mode Figure 6 3 presents the principle of relay outputs operation for one threshold mode and an example values of other parameters measured displayed value A t ts D signal SEt P parameter a gt MZ expected signal value a zone A teat 4 E HYS parameter zone B I allowed signal i Na i deviation b relay state GE Poi ae modE on Pa s a ton 0 SES i EEE e NAS t oFF 0 I i i I I E SE EEE FE EET time c relay state 4 a hie i i modE oFF 1 i IKE al i ie l I Boba i closed I ol I ton 0 open I CA m H torso Lien cl iti gt kod SER BE NE DE time d relay state 4 g prg it ar modE on NE NZL AE HEK ton gt 0 m I C A ja OE ol MM oo E 8 Em time relay state A ka Dy ton tOFF lt Bo e modE oFF WE BE gt parameter Parameter Na ton gt 0 BE eer coe toFF gt 0 gt l l BEN I l gt time Dt OFF t on parameter parameter Description A B C D points where measured signal exceeds border values expected value allowed deviation Bon Borr Don Dor relays state changes moments for t on gt 0 t oFF gt 0 ta ts tc tp time periods while input signal is in zone A or zone B Figure 6 3 Principle of LED relay output operation for one threshold mode Parameter SEtP sets a threshold of the relay and pa
19. ained in zone A Figure 6 3 a The parameter ALArmS allow user to set the relay output behaviour in critical situations e g Input values exceeds permissible measurement range User can select that the relays will be turned on turned off or not changed in critical situations All parameters connected with relay outputs are described in paragraph rELAy1 menu 6 2 2 Two thresholds mode displayed value t t t t t 4 bw S e P measure De a zone B A eg vm dsignal KRS p EE AE OE EE HYSt parameter A a i La EE EE Y a ssak SEL P or SEt P2 parameter zone B d i i i i T H j 1 V 1 i E b relay state it SEZ NS E waj time modE in I ha da p SS MI r SL ton 0 closed 1 I m I IL IE toFF 0 TE open Sg m EEE erg i ad time c relay state 4 NE d i wa E SEE modE out it SE e bn pi Fo pod INEO f closed I pot ton 0 hd Sza t oFF 0 4 EE relay state 4 a NE EE Li poka d modE in A SEE Jr 4 r EE ton gt 0 A r closed rr it rob EU eeng open N Nel l eee e relay state ton parameter toFF parameter ton parameter modE out Li SE f i Al ig LJ I Bej I closed E I o ton gt 0 n toFF gt 0 i gt e 3 time t OFF parameter t on parameter t OFF parameter Description A B C D E points where measured signal exceeds border values expect
20. ame of the first parameter or next level sub menu is displayed e if the name of some parameter is displayed enter the edition of this parameter present value of the parameter is displayed ENTER ESC MENU button allow user to exit present menu level and goes to upper MENU level menu or measurement mode 7 2 PARAMETERS EDITION To start edition of any parameter user should select name of desired one using Vv buttons and then press ENTER 7 2 1 Numeric parameters digit change mode Numerical parameters are displayed as decimal numbers The mode of its new value entering depends on chosen edit method see parameter Edit In mode by digit Edit dig pressing one of the keys or v causes change of current position flashing digit or the sign Short pressing of the ENTER button causes change of the position digit Press ENTER at least 2 seconds to accept the changes after that question SEt is displayed and user must to confirm or cancel the changes To conform changes and story it in EEPROM press ENTER button shortly after SEt is displayed To cancel the changes press ESC button shortly after SEt is displayed After that device returns to the menu 7 2 2 Numeric parameters slide change mode In slide change mode Edit Slid buttons and v has different functions To increase edited value press or press and hold button on
21. ce is ready to work 7 3 4 OutPUt menu This menu contains parameters of current output control OUtmod current output mode can be set to values OFF current output disabled 0 20 current output enabled with 0 20 mA mode 4 20 current output enabled with 4 20 mA mode modbuS current output controlled via RS 485 interface OUt LO this parameter determines the input value for which the output current is minimal 0 mA or 4 mA depend of current output mode Outmod 24 User manual for weight meter SWI 94 OUt HI this parameter determines the input value for which the output current is equal 20mA The output current value is calculated due to formulas given below W OUt LO Lou OU HI OUL LO X 16mA 4mA for output range 4 20mA p s__W OUtLO u OUt HI OUt LO X 20mA for output range Oz 20mA where W denotes the displayed value Out LO parameter can be greater than Out HO In this case the conversion characteristic is reversed it means that if input value raises the output current falls Lo r Hr this parameters define the output current range maximum range 0 to 24 mA If calculated output value Lu exceeds defined range then current output generates the current equal to upper or lower border of the defined range The parameters define the percentage extension of nominal current range 4 20 mA with 0 1 resoluti
22. ed value allowed deviation Bon Borr Con Corr Eon Eorr relays state changes moments for t on gt 0 t OFF gt 0 ta ts tc to te time periods while input signal is in zone A or zone B Figure 6 4 Principle of LED relay output operation for two thresholds mode 17 User manual for weight meter SWI 94 Figure 6 4 presents the principle of relay outputs operation for two thresholds mode and an example values of other parameters In this mode parameter SEt P2 is accessible in common with SEt P2 this parameter describes a second threshold of the relay output The parameters HYSt modE t on t oFF unit and ALArmS are connected with both SEt P and SEt P2 thresholds While the controlling process the relay output changes his state depends of both SEt P and SEt P2 thresholds in similar way as it was described in one threshold mode If two threshold mode is used modE parameter defines state of the relay output when the input value occurs in a particular zone defined by border values of both thresholds The relay can be turned on if the input value is contained in zone A modE in or zone B modE out and turned off if it is contained in the second one Figure 6 4 The sequence of thresholds SEt P and SEt P2 can be set in any order due to the control of relay outputs is done depend on difference between t
23. er in rELAy2 menu 0 seconds 1 minutes 48h Yes 0 2 ALArmS parameter in rELAy2 menu 0 no changes 1 on 2 off 49h Yes p inti 0 999999 SEt P2 parameter in rELAy2 menu no decimal point included 4Ah Yes Parameters of current output operation OUtmod parameter in OUtPUt menu current output mode AOh Yes 0 2 0 current output disabled 1 current output enabled with 0 20mA i mode 2 current output enabled with 4 20mA mode 3 current output controlled via RS 485 interface 2 D D TE D 5 2 PaK Yes 0 999999 OUt LO parameter in OUtPUt menu no decimal point included e Yes 0 999999 OUt HI parameter in OUtPUt menu no decimal point included 34 User manual for weight meter SWI 94 Register Write Range Register description A5h Yes 0 499 Lo r parameter in OUtPUt menu expressed in 0 1 A6h Yes 0 99 Hi r parameter in OUtPUt menu expressed in 0 1 A7h Yes 0 3 AL parameter in OUtPUt menu current output value on critical i exception 0 no change 1 22 1 mA 2 3 4 mA 3 0 mA 1 it is recommended to read these registers simultaneously in 2 registers frames If single registers are read data errors are possible because of changes of read value between successive registers readings these registers are active only if device is equipped with active current output after wr
24. etermines RS 485 interface baud rate It can be set to one of 8 possible values 1200 2400 4800 9600 19200 38400 57600 415200 mbAccE this parameter sets the access to the configuration registers of the device Possible values on configuration registers can be set via RS 485 interface OFF configuration registers can not be set via RS 485 interface The access to registers no 04h i 05h cant be denied by mbAccE parameter see a LIST OF REGISTERS mbtimE this parameter defines maximal time sec between following frames received by the device If the delay will be greater than the value of mbtimE parameter the relays and the current output which are controlled via RS 485 interface will set to alert state see OUtPUt menu and rELAy1 menu description Parameter mbtimE can be set to values from O to 99 seconds The value 0 means that the time will be not controlled rESP this parameter defines minimal additional delay between the Modbus message and the answer of the device received and sent via RS 485 interface This additional delay allows the device to work with poor RS converters which do not works properly on baud rates higher than 19200 This parameter can be set to one of values Std answer as duick as possible no additional delay ym 10c 20c answer delayed of 10 20 50 100 of 200 chars respectively whe
25. f relay Big 21 ton Turn on delay of relay 0 0 sec 22 toFF Turn off delay of relay 0 0 sec 22 unit Unit of t on toFF parameters of relay SEC 22 ALArmS Reaction for critical situation of relay OFF 22 Parameters of relay R2 operation rELAy2 menu SEtP Relay first threshold 150 0 21 SEt P2 Relay second threshold 300 0 21 HYSt Hysteresis of relay 0 0 21 modE Operation mode of relay Big 21 ton Turn on delay of relay 0 0 sec 22 toFF Turn off delay of relay 0 0 sec 22 unit Unit of t on toFF parameters of relay SEC 22 ALArmS Reaction for critical situation of relay oFF 22 Activation of acoustic signal bEEPEr menu AL Activation of acoustic signal by critical situation OFF 22 r1 Activation of acoustic signal by relay R1 OFF 22 r2 Activation of acoustic signal by relay R2 OFF 22 Calibration of measurement input CALibr menu rESOL Displaying resolution 0 1 23 rAnGE Measurement range 4 mVIV 23 C tYPE Calibration type dAtA 23 r LoAd Rated Load parameter 100 0 23 r out Rated Output parameter 2 0000 23 LoAd Load value of dead weight calibration 100 0 23 FiLtEr Measurements filtration rate 4 24 Active current output configuration OUtPUt menu OUtmod Current output mode 0 20 mA 24 38 User manual for weight meter SWI 94 Parameter Description Default value User s value gere OUtLO gt EG 0
26. hresholds values zone A and outside of threshold values zone B 7 DEVICE PROGRAMMING The device menu allow user to set all parameters connected to operation of measurement input control modes critical situations behaviour communication via RS 485 and access settings The meaning of the particular parameters is described in paragraph MENU DESCRIPTION 7 1 PROGRAMMING MENU To enter main menu being in the measurement mode operator must to press and hold at least 2 sec ESC MENU button If the user password is defined see parameter SEtCod operator have to enter correct one before proceeding to menu options Entering of the passwords is similar to the edition of numeric parameters see PARAMETERS EDITION however presently editing digit is showed only on the display other digits are replaced by sign After entering of last digit of the password first menu position will be displayed if the password is correct or warning Error in other case Pay attention when device parameters are being changed If it is possible turn off controlled installation machine 18 User manual for weight meter SWI 94 Functions of the buttons while sub menu and parameters choice Selection of sub menu or parameter for editing Name of selected item sub menu or parameter is displayed Operation of ENTER button depend on present menu position e if the name of some sub menu is displayed enter this sub menu n
27. in parameter being edited Symbol used in the manual ENTER Functions e Start to edit the parameter e Enter to the sub menu Confirmation of changes made in parameter being edited Symbol used in the manual v Functions e Change of the present menu e Modification of the parameter value Change of the display mode Symbol used in the manual ESC MENU Functions e Enter to main menu press and hold by at least 2 sec e Exit the current level and Enter to previous menu or measure mode Cancel the changes made in parameter being edited Symbol used in the manual ENTER Functions e Start to edit the parameter e Enter to the sub menu Confirmation of changes made in parameter being edited Symbol used in the manual or T Functions Tare e Change of the present menu e Modification of the parameter value Change of the display mode 13 User manual for weight meter SWI 94 Symbol used in the manual v or B N Functions Switch between gross nett value Change of the present menu e Modification of the parameter value e Change of the display mode Symbol used in the manual gt 0 lt gt 04 Functions zeroing displayed value 6 PRINCIPLE OF OPERATION After turning the power supply on device ID and software version are showed on the display next the controller goes to the measurement mode 6 1 MEASUREMENT MODE While device isi in measurement mode LED d
28. ion 10h Yes 0 11 0 0 01 1 0 02 2 0 05 3 0 1 4 0 2 5 0 5 6 1 7 2 8 5 9 10 10 20 11 50 32 User manual for weight meter SWI 94 Register Write Range Register description 11h No 0 2 Decimal point position set by rESOL parameter in CALibr menu j 0 0 1 0 0 2 0 00 rAnGE parameter in CALibr measurement range FEE Yes 0 1 a m 1 74 mV 13h Ves 0 1 C tYPE parameter in CALibr menu calibration type i 0 theoretical calibration 1 real load calibration 14h Yes 0 999999 r LoAd parameter in CALibr menu expressed in kg 0 1kg or 15h 0 01 kg depending on rESOL parameter in CALibr menu Ze r out parameter in CALibr menu for 2 mV V range expressed in 16h Yes 0 19999 0 0001 mV V r out parameter in CALibr menu for 4 mV V range expressed in 17h Yes 0 39999 0 0001 mV V FiLtEr parameter in CAL br menu 18h Yes 0 5 0 the shortest measurement period 5 the longest measurement period S ZEro function in CALibr menu After writing 0 value current 19h Yes 0 A M measurement value is stored as zero 20h Yes 0 199 Device address 21h No 20E6h Device identification code ID bAud parameter in rS 485 menu baud rate 22h Yes 0 7 0 1
29. isplay shows gross or net weight Net weight presentation mode is signalized by LED marked NET If the weight is constant while 10 successive measurements then it is signalized by LED marked gt lt stable measurement LED diode marked gt 0 lt signalizes that result of measurement is zero Zeroing of the scale is possible by pressing gt 0 lt button but only when current weight do not exceeds 2 of full range and measurement is stable LED gt lt is lighted Pressing of T button causes storing of current value as tare weight after that device goes to displaying net weight Pressing of B N button causes alternative change of presentation mode gross net weight Device recalculates measurement results according to calibration factors entered by a user using CALibr menu Nominal measurement range is 2 mV V or 4 mV V depend on value of rANGE parameter in CALibr menu If the result of measurement exceeds the nominal measurement range a warning Hi or Lo is displayed in place of measurement value depends on exceeded value All other warnings are displayed in numerical or text form see chapter SIGNALISATION OF ERRORS If the measurement value do not exceeds nominal measurement range but displayed value exceeds range 999 9999 the warning OvEr is displayed rather than the calculated result All accessible parameters can be changed by entering the menu see DEVIC
30. iting to register no 20h the device responds witch an old address in the message after writing to register no 22h the device responds with the new baud rate the value of the mbAccE parameter is also connected to write to this register so it is possible to block a writes but impossible to unblock writes via RS 485 interface The unblocking of the writes is possible from menu level only AUN 10 2 TRANSMISSION ERRORS DESCRIPTION If an error occurs while write or read of single register then the device sends an error code according to Modbus RTU specifications Error codes 01h illegal function only functions 03h 06h and 10h are available 02h illegal register address 03h illegal data value 08h no write permission see mbAccE parameter While reading of displayed value registers 01h 04h using function 03h read single register other error codes can occur Meaning of such codes is given in chapter SIGNALISATION OF ERRORS in details 10 3 EXAMPLES OF QUERY ANSWER FRAMES Examples apply for device with address 1 All values are represent hexadecimal Field description ADDR Device address on modbus network FUNC Function code REG H L Starting address address of first register to read write Hi and Lo byte COUNT H L No of registers to read write Hi and Lo byte BYTE C Data byte count in answer frame DATA H L Data byte Hi and Lo byte CRC LH CRC error check Hi and Lo byte 35
31. ler current input 4 20 mA Figure 4 9 Example of current outputs connection 4 4 MAINTENANCE The unit does not have any internal replaceable or adjustable components available to the user Pay attention to the ambient temperature in the room where the unit is operating Excessively high temperatures cause faster ageing of the internal components and shorten the fault free time of unit operation In cases where the unit gets dirty do not clean with solvents For cleaning use warm water with small amount of detergent or in the case of more significant contamination ethyl or isopropyl alcohol A Using any other agents can cause permanent damage to the housing Sa Product marked with this symbol should not be placed in municipal waste Please f X check local regulations for disposal and electronic products v pR 12 User manual for weight meter SWI 94 5 FRONT PANEL DESCRIPTION stable measurement LED indicator gt lt Thresholds exceeding KOR Fa a LED indicators R zero value LED indicator gt 0 lt nett value LED indicator NET _ 2040 206 NET RI RO display 7 EEEEEEI programming SS Si _ pushbuttons ak Symbols and functions of push buttons MENU ENTER Symbol used in the manual ESC MENU Functions Enter to main menu press and hold by at least 2 sec e Exit the current level and Enter to previous menu or measure mode Cancel the changes made
32. ly the increasing became quickest as long as button is pressed To slow down the increasing button v can be used If v is pressed shortly and button is still pressed increasing slow down for a moment only if v is pressed and held while button 4 is still pressed the increasing slow down and will be kept on lower speed To decrease edited value press or press and hold v button only The decreasing became quickest as long as button v is pressed To slow down the decreasing button can be used If 4 is pressed shortly and button v is still pressed decreasing slow down for a moment only if 4 is pressed and held while button v is still pressed the decreasing slow down and will be kept on lower speed Press ENTER at least 2 seconds to accept the changes after that question SEt is displayed and user must to confirm or cancel the changes To conform changes and story it in EEPROM press ENTER button shortly after SEt is displayed To cancel the changes press ESC button shortly after SEt is displayed After that device returns to the menu 19 User manual for weight meter SWI 94 7 2 3 Switch parameters LIST type Switch parameters can be described as a sets of values a lists out of which only one of the options available on the list can be selected for the given parameter Options of switching parameter are selected using v keys Short pressing of ENTER cause
33. mA or 4 mA depend Omod 0 0 24 OUt HI Display value for 20 mA current output 200 0 25 Lor Extension of the bottom of the nominal output range 5 0 25 Hir Extension of the top of the nominal output range 5 0 25 AL Current output value on critical exception 22 1 mA 25 Front panel buttons configuration button menu b ZEro Zeroing button OFF 26 b tArE Tare button OFF 26 b nEtt Gross nett display mode switching button OFF 26 Display parameters briGHt Display brightness bri 6 26 RS 485 interface configuration menu rS 485 Addr Device address 0 27 bAud Baud rate 9600 b sec 27 mbAccE Permission to changes of configuration registers yon 27 mbtimE Maximum delay between received messages 0 27 rESP Additional delay of answer transmission Std 27 Configuration of numerical parameters edition Edit t Numerical parameters edit mode dig 28 39 5 SIMEX SIMEX Sp z o o ul Wielopole 7 PL 80 556 Gda sk Poland tel 48 58 762 07 77 fax 48 58 762 07 70 http www simex com pl e mail info simex com pl
34. mal point included 33h Yes modE parameter in rELAy1 menu 34h Yes 0 5 0 noACt mode 1 on mode 2 oF F mode 3 in mode 4 out mode 5 modbuS mode 35h Vise 0 999 t on parameter in rELAy1 menu expressed in tenth of seconds or tenth of minutes depend on unit parameter 36h Yes 0 999 t OFF parameter in rELAy1 i menu expressed in tenth of seconds or tenth of minutes depend on unit parameter 37h Yes 0 1 unit parameter in rELAy1 menu 0 seconds 1 minutes 38h Ves 0 2 ALArmS parameter in rELAy1 menu 0 no changes 1 on 2 off 39h Yes a int i 0 999999 SEt P2 parameter in rELAy1 menu no decimal point included 3Ah Yes Parameters of relay R2 operation po es 0 999999 SEt P parameter in rELAy2 menu no decimal point included 42h Yes i 4 i A 8 A WE 43h Ves 0 99999 HySt parameter in rELAy2 menu no decimal point included modE parameter in rELAy2 menu 44h Tak 0 5 0 noACt mode 1 on mode 2 OFF mode 3 in mode 4 out mode 5 modbuS mode 45h Yes 0 999 ton parameter in rELAy2 menu expressed in tenth of seconds or tenth of minutes depend on unit parameter 46h Yes 0 999 t OFF parameter in EL ANS menu expressed in tenth of seconds or tenth of minutes depend on unit parameter 47h Ves 0 1 unit paramet
35. nds the answers 10 1 LIST OF REGISTERS Some parameters are located on two registers higher word in first register and lower word in next one After writing of one of them device controls result of their 32 bit value and if it is necessary corrects value of second register automatically If appropriate modification is impossible both registers stay unaffected and device responds with error code 03h see TRANSMISSION ERRORS DESCRIPTION Register Write Range Register description 01h 99999 F 02h No 999999 Measurement value no decimal point 03h No 0h The status of the current measurement 0h data valid other values or error no describe errors see SIGNALISATION OF ERRORS 04h No 0 2 Decimal point position The same as 11h register State of the relays and alarm LED binary format 1 on 0 off 00000000 000000ba 05h Yes 0 3 a relay R1 b relay R2 If written only a b bits are important others are ignored these bits allows user to control the relays via RS 485 interface State of current output expressed in 1 256 mA units it means that 06h Yes Oh 1800h high byte express integer part and low byte fractional part of desired output current 1 yA No A Gross measurement value no decimal point 1 ae No So Nett measurement value no decimal point Parameters of measurement input calibration rESOL parameter in CALibr menu displaying resolut
36. nection of wire shield to SHIELD terminal of meter shielded wires should be mounted as close metal case of the device e g connection box as possible and as far from disturbing wires e g powering motors as possible A Power 24V 5 10 RS 485 supply ACTIVE Imax 100mA GND DATA depending on version current output p Se l DATA oF GA GI BRETT Ri R2 EXC SIGN Figure 4 5 Terminals description 10 User manual for weight meter SWI 94 AN Depending on version 85 230 260V AC DC or L N 79 24 50V DC 16 24 35V AC Figure 4 6 Connection of power supply and relays Contacts of relay outputs are not equipped with spark suppressors While use the relay outputs for switching of inductive loads coils contactors power relays electromagnets motors etc it is required to use additional suppression circuit typically capacitor 47nF min 250VAC in series with 100R 5W resistor connected in parallel to relay terminals or better directly on the load In consequence of using the suppression circuit the level of generated electromagnetic disturbances is lower and the life of relay contacts rises a N Figure 4 7 Examples of suppression circuit connection a to relay terminals b to the inductive load 11 User manual for weight meter SWI 94 load cell transducer SHIELD Rys 4 8 Example of load cell transducer connection ACTIVE Current output Logic control
37. nual local safety and EMC regulations The unit must be properly set up according to the application Incorrect configuration can cause defective operation which can lead to unit damage or an accident If in the case of a defect of unit operation there is a risk of a serious threat to the safety of people or property additional independent systems and solutions to prevent such a threat must be used The unit uses dangerous voltage that can cause a lethal accident The unit must be switched off and disconnected from the power supply prior to starting installation of troubleshooting in the case of malfunction Neighbouring and mating equipment must meet the requirements of appropriate standards and regulations concerning safety and be equipped with adequate anti overvoltage and anti interference filters Do not attempt to disassemble repair or modify the unit yourself The unit has no user serviceable parts Units in which a defect was stated must be disconnected and submitted for repairs at an authorized service centre AN In order to minimize fire or electric shock hazard the unit must be protected against atmospheric precipitation and excessive humidity Do not use the unit in areas threatened with excessive shocks vibrations dust humidity corrosive gasses and oils Do not use the unit in explosion hazard areas User manual for weight meter SWI 94 Do not use the unit in areas with significan
38. on Parameter Lo r defines lower border of the range due to formula Imn 5 4 MA 4 MA x Lo r This parameter can be set from 0 to 99 9 Parameter Hi r defines lower border of the range due to formula Imax 20 mA 20 mA x Hi r This parameter can be set from 0 to 19 9 In example on page 31 of the DISPLAY VALUES CALCULATION paragraph the procedure of the current outputs determining is presented in details AL this parameter determines the behaviour of current output if any critical situation occurs The parameter can be set to one of the values noCHAn current will not change 22 1 current will be set to 22 1 mA 3 4 current will be set to 3 4 mA 0 0 current will be set to 0 mA When the critical situation goes the current will be set to value calculated due to formulas given above If parameter OUtmod is set to on OFF 0 20 or 4 20 the critical situation means that nominal measurement range is exceeded If parameter OUtmod is set to modbuS the critical situation means communication delay when no data is received longer than mbtimE parameter see description rS 485 menu 25 User manual for weight meter SWI 94 7 3 5 button menu This menu allows enabling of functions realised by gt 0 lt T and B N buttons b ZEro enable of zeroing function button gt 0 lt
39. on resistance gt 20MQ insulation strength between power supply and input output terminal 1min 2300v insulation strength between relays terminal 1min 1350V according to PN EN 61326 1 This is a class A unit In housing or a similar area it can cause radio frequency interference In such cases the user can be requested to use appropriate preventive measures User manual for weight meter SWI 94 4 DEVICE INSTALLATION The unit has been designed and manufactured in a way assuring a high level of user safety and resistance to interference occurring in a typical industrial environment In order to take full advantage of these characteristics installation of the unit must be conducted correctly and according to the local regulations A Read the basic safety requirements on page 3 prior to starting the installation Ensure that the power supply network voltage corresponds to the nominal voltage stated on the unit s identification label The load must correspond to the requirements listed in the technical data All installation works must be conducted with a disconnected power supply Protecting the power supply clamps against unauthorized persons must be taken into consideration 4 1 UNPACKING After removing the unit from the protective packaging check for transportation damage Any transportation damage must be immediately reported to the carrier Also write down the unit serial number on the housing
40. play resolution of measurements relays thresholds and calibration values Available values 0 01 0 02 0 05 0 1 0 2 0 5 1 2 5 10 20 50 According to practical application circumstances to get stable measurements it is recommended to set rESOL parameter value according to selected measurement range Set such value of rESOL to ensure that whole number of measurement divisions do not exceed permissible value for theoretical calibration ratio of r LoAd rESOL lt 10000 similarly while dead weight calibration ratio of LoAd rESOL lt 10000 rAnGE measurement input range 2 mV V or 4 mV V Set this range according to parameter Rated Output R O of strain bridge C tYPE calibration type Possible values dAtA theoretical calibration Data Sheet type calibration according to data sheet of load cell transducers strain bridges rEAL dead weight calibration entry of values for certain known loads GD CALibr menu shows option related to selected calibration method only When dead weight calibration is selected then LoAd parameter is visible When theoretical calibration is selected then parameters r LoAd and r out are visible in place of LoAd r LoAd Rated Load calibration parameter This parameter is expressed in kg and can be changed in range from 000000 to 999999 making allowance for rESOL parameter In ca
41. rameter HYSt sets a hysteresis of the relay Figure 6 3 a The relay can change his state only when input value exceeds over or under border value and ta ts Je to times Figure 6 3 are bigger than the time defined by parameters t on t OFF and unit Border values means values equal threshold hysteresis and threshold hysteresis respectively If t on and t oFF parameters are set to 0 then the relay state will be changed as soon as input value exceeds any of the border values see points A and C Figure 6 3 a b If values of t on or and t oFF are positive then relay state will be turned on if the input value exceeds the border values and stay bigger or lower during at least ton see points Bon Don Figure 6 3 a d e Similarly the relay will be turned off if time t OFF elapse since the input signal value exceeds any of the border values see points Borr Dorr Figure 6 3 a d e 16 User manual for weight meter SWI 94 If ta Je te or to when input signal stay in zone A or zone B are lower than parameters t on or t oFF the relay will not change his state see points A and C Figure 6 3 a d e The state of relay output while the input value exceeds the border values points A B C D is described by parameter modE The relay can be turned on modE on or turned off modE oFF when input signal value is cont
42. re SE one character time depends on selected baud rate 200c In the most cases parameter rESP should be set to Std no additional delay Unfortunately for some third party RS converters rESP should be adjusted experimentally Table 7 1 contains most frequently used values 115 2 500 bAud parameter 38 4 57 6 rESP parameter 10c 20c Tab 7 1 Settings of rESP parameter 27 User manual for weight meter SWI 94 7 3 9 Edit t parameter This parameter allows to change the edition mode of numerical parameters dig the change to by digit mode Slid slide change mode 7 3 10 dEFS parameter This setting allows to restore the factory settings of the device To get the access to this option special password is required 5465 next the device displays acknowledge question SEt Press ENTER to acknowledge the restoring of factory settings or ESC to cancel 7 3 11 SErv menu This menu contains the parameters for authorized service only To enter this menu proper service password must be entered Improper settings can causes of damage of the device 28 User manual for weight meter SWI 94 7 4 MENU STRUCTURE r Measurement mode
43. rror and unit returns to measurement mode n Independently in user manual letter m is used to make it more readable Due to problem with direct displaying of m letter it is exchanged with special sign example modE 7 3 1 rELAy1 menu This menu allows to configure the operation mode of relays and LEDs marked R e g R1 If there are few relay outputs available then every output has its own configuration menu e g menu rELAy2 for relay LED R2 Principle of the relays operation is described in paragraph CONTROL OF THE RELAY OUTPUTS 20 User manual for weight meter SWI 94 SE P SEt P2 HYSt d modE _ first threshold of the relay range O 999999 Threshold is the medium value of relay hysteresis second threshold of the relay range O 999999 This threshold is accessible when modE parameter is set to in or out value Threshold is the medium value of relay hysteresis hysteresis of relay range 0 99999 Full hysteresis of the relay is equal to 2x HYSt parameter The relay state can change when an input signal is out of threshold hysteresis to threshold hysteresis zone Presented parameters should be set to ensure that SEt P HYSt SEt P2 HYSt SEt P HYS or SEt P2 HYS do not exceeds the measure range Additionally in two threshold mode
44. s in displaying of the acknowledge question SEt If key ENTER is pressed again the changes are accepted stored in EEPROM end the edition process finished Pressing the key ESC after SEt causes in cancelling of made changes and returning to menu Functions of buttons when editing numeric and switching parameters While editing numeric parameter e change of current flashing digit slide change of value acceleration deceleration direction change While editing switch parameter selection of switch parameter If numerical parameter is being edited a short press of ENTER button change edited position A long press of ENTER button at lest 2 sec causes of display a SE ask which allow user to make sure if change of the parameter value is correct If switch parameter is being edited a short press of ENTER button causes of display a SEt ask When ENTER button is pressed again while SEt is displayed the new value of the parameter is stored in EEPROM memory ENTER Pressing this button operator can cancel the changes done up to now if they MENU were not approved by ENTER button after the SEt ask and come back to menu 7 3 MENU DESCRIPTION M password checking If some password different from 0000 is set then every enter to main menu follows the entering of password If entered password is correct then first menu position will be displayed else warning E
45. se of connection of two three or four transducers parameter r LoAd should be set to arithmetic sum of nominal weights of all the sensors r out Rated Output calibration parameter output value of load cell transducer at nominal load This parameter is expressed in mV V and can be set in range from 0 0000 to 1 9999 when rAnGE 2mV V or from 0 0000 to 3 9999 when rAnGE 4mV V In case of connection of two three or four transducers parameter r out should be set as arithmetic mean of all sensors signals LoAd function allowing dead weight calibration After selection of this function it is necessary to enter some value expressed in kg and confirm entered value by pressing ENTER or press ESC when value needn t to be changed To cancel calibration press ESC after questions rEADY appear Pressing ENTER after rEADY appear causes storing current value of input signal If input signal value exceeds permissible range then calibration fails and message Err is displayed Weight is expressed in kg and can be changed in range from 000000 to 999999 making allowance for rESOL parameter 23 User manual for weight meter SWI 94 Due to measurement precision it is recommended to use weight not less than 2 3 D of full scale weight while dead weight calibration Best results can be obtained after calibration with dead weight equal to maximum expected weight put of the scale S ZEro
46. t temperature variations exposed to condensation or icing Do not use the unit in areas exposed to direct sunlight Make sure that the ambient temperature e g inside the control box does not exceed the recommended values In such cases forced cooling of the unit must be considered e g by using a ventilator The unit is designed for operation in an industrial environment and must not be used in a household environment or similar 2 GENERAL CHARACTERISTICS Weight meter SWI 94 is designed for cooperation with load cells strain gages in application not required to be approved Device is equipped with push buttons allow easy setting of tare and zero and also switching between nett and gross indications Measured weight is displayed on 6 digit readable LED display Two relay outputs allow to use the SWI as controller for simple systems with batching function Build in analogue output and RS 485 interface enable remote controlling of the device by a host system if required The device software allows to use two calibration methods data sheet calibration or dead weight calibration All critical states of the device are signalised by proper error messages 3 TECHNICAL DATA Power supply voltage depending on version External fuse required Power consumption Measurement input Load cells power supply Load cells connections Max display divisions Tare range Display range Outputs relay sensor power supply ac
47. tive current Communication interface 85 230 260V AC DC 50 60 Hz or 19 24 50V DC 16 24 35V AC T type max 2A max 4 5 VA Q 85 260V AC DC max 4 5 VA Q 16V 35V AC max 4 5W 19V 50V DC tensometer programmable sensitivity selectable up to 2 mV V or 4 mV V 4 6 V 10 Imax 60 mA 4 wire technique max 4 load cells 350 Q 10 000 d 100 of selected measurement range 99999 999999 plus decimal point 2x NO 1A 250V AC cos q 1 24V 5 10 max 100 mA stabilized range max 0 4 20 mA load resistance max 700 Q 13 bit resolution RS 485 8N1 and 8N2 Modbus RTU not separated User manual for weight meter SWI 94 Baud rate Display Data memory Protection level Housing type Housing material Housing dimensions Mounting hole Assembly depth Panel thickness Operating temperature Storage temperature Humidity Altitude Screws tightening max torgue Max connection leads diameter Safety requirements EMC 1200 bit s 115200 bit s LED 6 digit 13mm height red non volatile memory EEPROM type IP 65 from front IP 20 housing and connection clips panel NORYL GFN2S E1 96 x 48 x 100 mm 90 5 x43 mm 102 mm max 5 mm 0 C to 50 C 10 C to 70 C 5 to 90 no condensation up to 2000 meters above sea level 0 5 Nm 2 5 mm according to PN EN 61010 1 installation category II pollution degree 2 voltage in relation to ground 300V AC insulati
48. ut signal e LEDs light when relays are closed independently of relays mode e When power supply fail unit do not store relays state selected by RS 485 interface 21 User manual for weight meter SWI 94 t on turn on delay time the relay is turned on with delay equal t on if the input value exceeds appropriate border value defined with threshold and hysteresis at least t on time t on range 0 99 9 defined with 0 1 sec resolution Unit of this parameter is set by unit parameter t OFF turn off delay time the relay is turned off with delay equal t oFF if the input value exceeds appropriate border value defined with threshold and hysteresis at least t OFF time t OFF range 0 99 9 defined with 0 1 sec resolution Unit of this parameter is set by unit parameter t OFF time the relay do not change his state see paragraph CONTROL OF If time when the input signal exceeds some border value is shorter than t on or THE RELAY OUTPUTS unit unit of time for t on i t oFF parameters Can be set on one of two values min minutes SEC seconds ALArmS this parameter defines the relay reaction when some critical situations occurs noCHAn relay do not change his state on relay will be turned on OFF relay will be turned off If parameter modE is set to on OFF

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