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User Manual - Metrix Electronics Ltd

1. OUtPUt CG gt Outmod z gt Parameter 7 i SS E oi unit II OUt Lo I 7 TZ i i bei ForP OUtHi I F i Fe mUL I E Lor 1 7 i bei div ll pi Hir len i 7 i ZErot len I lt AL II t option le mEASt il ec FiLtEr vALUE Let Parameter diti T SE edition droP l M See next page 36 User manual RATEMETER STI N1 18 See previous page 4 4 ec _V mm EE briGHt BR SE I Se edition Elm SS Parameter kt HOLd z modE Hame edition F r WS PEA II D lt timE I fe Hdis I m Hr ll D Hr2 II EE ey HOut option S amp BI SECU gt SEtcod i Acc ri i I lt Acc r2 te e gt Add Parameter BE E F edition A el bAud S H mw mbAccE Il t mbtimE II me _V e Parameter t Edit t edition le_ rESP 7 4 digit special password entering Esc 2 dEFS S gt EO BS SEt ES Default settings 7 ESC restoring E V le SErv _ Parameter Ss edition
2. 37 User manual RATEMETER STI N118 8 EXAMPLES OF MUL AND DIV PARAMETERS CALCULATION 1 Let s assume that user wants to multiply rotational speed by 12 34 Then parameters mUL and div should be set mUL 1234 div 100 2 Let s assume that user wants to divide rotational speed by 5 678 Then parameters mUL and div should be set mUL 1000 div 5678 3 Let s assume that user wants to display linear speed of moved material Measurement wheel radius is 5 cm To determine parameters mUL and div a circumference of measurement wheel must be calculated it means linear distance equals to single revolution circumference 2 x 3 14 x 5 cm 31 40 cm 0 314 m To obtain linear speed multiply rotational speed by determined coefficient mUL 314 div 1000 After storing these parameters device displays linear speed of material movement expressed in m s m min or m h depend on unit parameter with precision selected by PrEc parameter 4 Let s assume that user wants to know how much time is required for backing a bun at current speed of production line While backing the bun is moving on the production line through the oven Input data number of pulses per 1 meter 10 pulses the way of bread while backing 12 33m User have to set following parameters e inPUt gt F or
3. ZE USE 0 5 0 0 1 0 0 2 0 00 3 0 000 4 0 0000 5 0 0000 jaw f Yee O82 gehen Trein 2 rev bouts isa Yes 0 999999 Value gis interpreted as 1 000 000 1h Yes 0 999999 Value i interpreted as 1 000 000 ZEro t parameter in inPUt menu expressed in tenth of 18h Yes 0 399 seconds 40 User manual RATEMETER STI N118 Register Write Range Register description 19h Yes 0 199 mEAS t parameter in inPUt menu expressed in tenth of seconds 1Ah Yes 0 199 VALUE parameter in FiLtEr menu measurement filtering rate 1Bh Yes 0 1999 droP parameter in FiLtEr menu expressed in tenth of percent 20h Yes 0 199 Device address 21h No 205Ch Device identification code ID bAud parameter in rS 485 menu baud rate 22h Yes 0 7 0 1200 baud 1 2400 baud 2 4800 baud 3 9600 baud 4 19200 baud 5 38400 baud 6 57600 baud 7 115200 baud 23h5 Ves 0 1 mbAccE parameter in rS 485 menu permission to write registers via RS 485 interface 0 write denied 1 write allowed Parameters of SECU menu binary format 0 oF F 1 on 24h vy EE EEESN bit 0 Acc r1 parameter bit 1 Acc r2 parameter rESP parameter in rS 485 menu additional response delay 25h Yes 0 5 0 no additional delay 1 10c op
4. 20c 50c Tab 7 2 Settings of rESP parameter 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 35 User manual RATEMETER STI N118 7 4 MENU STRUCTURE gt Measurement mode Press and hold at least 2 seconds y esc 0___ 4 digit user password entering if it is different from 0000 g AB z rELAy1 CG gt SEP LE Parameter ry A Ss edition D tej GI B HEEN SEtP2 A gt Options similar rELAy2 Le x D to rELAy1 menu i HYSt II E modE len ton j toFF I bei unit l lt ALArmS IIl gt FrEq 2 Parameter T 4 Ss edition PULSEn At SER ee ee oe E E E E 7 PrEC ll
5. rELPri1 and his value will be displayed on the display in alternating mode If or v will be pressed in 5 sec again the next threshold will be displayed else the device comes back to the measurement mode If a free access is enabled see description of SECU menu user can change the value of particular threshold pressing button ENTER see PARAMETERS EDITION If particular parameter has been changed and confirmed in quick view mode its GD new value is displayed in alternating mode with parameter name by few seconds Confirmed changes may be checked or user can switch viewed parameter pressing 4 or v button 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 menu SECU 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 AY Pay attention when device parameters are being changed If it is possible turn off controlled installation machine 24 User manual RATEMETER STI N118 Functions
6. voltage output enabled with 2 10V mode 5 voltage output controlled via RS 485 interface Ath A2h Yes 0 999999 OUt LO parameter in OUtPUt menu no decimal point included A3h aghe Yes 0 999999 OUt HI parameter in OUtPUt menu no decimal point included Yes A5h 0 999 Lo r parameter in OUtPUt menu for active current output and active voltage output expressed in 0 1 Yes 0 299 Lo r parameter in OUtPUt menu for passive current output expressed in 0 1 Yes 0 199 Hi r parameter in OUtPUt menu for active and passive current output expressed in 0 1 A6h Yes 0 99 Hi r parameter in OUtPUt menu for active voltage output expressed in 0 1 Yes AL parameter in OUtPUt menu active current output value on critical exception 0 no change 1 22 1 mA 2 3 4 mA 3 0 mA ATh Yes AL parameter in OUtPUt menu passive current output value on critical exception 0 no change 1 22 1 mA 2 3 4 mA Yes AL parameter in OUtPUt menu active voltage output value on critical exception 0 no change 1 11 V 2 5 5 3 1 2 V 4 06V 5 0V AUN it is recommended to read these registers simultaneously in 2 registers frames If single registers are read data le because of changes of read value between successive registers readings
7. 03h No 0 FFh 20h device waits for first pulse A0h alarm state allowable frequency range is exceeded 04h Yes 0 5 PrEc parameter in inPUt menu The same as 12h register State of the relays and alarm LED binary format 1 on O off 00000000 000e00ba 05h Yes 0 31 a relay R1 b relay R2 e alarm state indicator 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 active current output expressed in 1 256 mA units it Yes 0h 1800h means that high byte express integer part and low byte fractional part of desired output current State of passive current output expressed in 1 256 mA units it 06h Yes 2CCh 1800h means that high byte express integer part and low byte fractional part of desired output current State of active voltage output expressed in 1 512 V units it means Yes Oh 1600h that high byte express integer part and low byte fractional part of desired output voltage 07h 08h No 0 999999 Peak drop value no decimal point FrEq parameter in inPUt menu input filter 10h Yes 0 11 0 10Hz 1 15Hz 2 20Hz 3 30Hz 4 40Hz 5 50Hz 6 100Hz 7 300Hz 8 1kHz 9 3kHz 10 10kHz 11 50kHz 11h Yes 0 19999 PULSEn parameter in inPUt menu Value 0 is interpreted as 1 PrEc parameter in inPUt menu
8. 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 SEt P and SEt P2 thresholds modbuS the relay is controlled via RS 485 interface independently on the input signal 27 User manual RATEMETER STI N118 t on t OFF 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 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 tu
9. these registers are active only if device is equipped with current or voltage output after writing 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 errors are possib 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 example message no 5 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 43 User manual RATEMETER STI N118 10 3 EXAMPLES OF QUERY ANSWER FRAMES Examples apply for device with address 1 All values are represent hexadecimal Field description ADDR FUNC REG HL COUNT HL BYTE C DATA H L CRC LH Device address on modbus network Function code Starting address address of first register to read write Hi and Lo byte No of registers to read write Hi and Lo byte Data byte count in answer frame Data byte Hi and Lo byte CRC error check Hi and Lo byte 1 Read of the displaye
10. 12 R1 Passive isolated option current ouput 4 20m RS 485 pulse input Pe AA EE S E Uo 24V 5 10 Imax 100 mA on version Power supply depending Figure 4 7 Terminals description relay and passive current outputs R1 ACTIVE option voltage output RS 485 m input option EES 8 AE 24V 5 10 Imax 100 mA depending on version Power SE Figure 4 8 Terminals description relay and active voltage outputs User manual RATEMETER STI N118 OC1 Umax 30V DC Imax 30mA Pmax 100mW ACTIVE z OC1 current output RS 485 input option option EES 8 d M SE 24V 5 10 Imax 100 mA depending on version Power el Figure 4 9 Terminals description OC type and active current outputs Passive isolated OC1 CT RS 485 ge input option eption EES S E Uo 24V 5 10 Imax 100 mA depending on version Power supply Figure 4 10 Terminals description OC type and passive current outputs 13 User manual RATEMETER STI N118 OC1 Umax 30V DC i Imax 30mA Pmax 100mW ACTIVE oc1 voltage output RS 485 4 input option option EES d Roma 24V 5 10 Imax 100 mA depending on version gt a 2 53 no a o z o a Depending on version 85 230 260V AC DC 50 60 Hz or 19 24 50V DC and 16 24 35V AC N L Figure 4 12 Connection of power
11. P PEriod e inPUt gt PULSen 10 pulses e inPUt gt div 37 because we want to N 12 33 be an integer value e inPU gt mUL N Since now the time required for backing a bun at current speed of production line is shown on the display in units selected by inPUf gt unit parameter 38 User manual RATEMETER STI N118 9 OUTPUT VALUE CALCULATION Lets assume that we have active current output and its parameters are OUtmod 4 20 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 31 lout 17 5 10 0 20 0 10 0 x 16 MA 4 mA 0 75 16 4 16 mA Calculated l does not exceed the output working range 3 8 21 mA b D 20 5 According to formula from page 31 lout 20 5 10 0 20 0 10 0 x 16 mA 4 mA 1 05 16 4 20 08 mA Calculated l does not exceed the output working range 3 8 21 mA c D 30 0 According to formula from page 31 lout 30 0 10 0 20 0 10 0 x 16 MA 4 mA 2 16 4 36 mA Calculated Lu exceeds the output working range 3 8 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 m
12. 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 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 measurement or control signals are longer than 30m or go outside of the building then additional safety circuits are required 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 f
13. monopolar fuse it must be mounted on the phase cable L 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 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 User manual RATEMETER STI N118 AY 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
14. 16 according to PN EN 61010 1 installation category II pollution degree 2 voltage in relation to ground 300V AC insulation 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 RATEMETER STI N118 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 AY 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 da
15. 27 modE Operation mode of relay Big 27 ton Turn on delay of relay 0 0 sec 28 toFF Turn off delay of relay 0 0 sec 28 unit Unit of t on toFF parameters of relay SEC 28 ALArmS Reaction for critical situation of relay oFF 28 Configuration of measurement input inPUt menu FrEq Maximum permitted frequency 300 Hz 28 PULSEn Input pulse divider 1 29 PrEc Measurement result displaying precision 0 0 29 unit Rotational speed unit min 29 F orP Kind of value visible on the display FrEq 29 mUL multiplier 1 30 div divider 1 30 ZEro t Maximum delay between successive revolutions 1 0 sec 30 mEASt Measurement window width 0 5 sec 30 Configuration of displayed value filtering FiLtEr menu VALUE Filtering ratio 0 30 droP Measurement value change switching off the filter 20 0 30 46 User manual RATEMETER STI N118 Parameter Description Default value User s value pac Current output configuration OUtPUt menu Outmod Current output mode 4 20 mA 31 OUt Lo Display value for 4 mA current output 0 0 31 Out Hi Display value for 20 mA current output 100 0 31 Lor Extension of the bottom of the nominal output 5 0 32 range Hir Extension of the top of the nominal output range 5 0 32 AL Current output value on critical exception 22 1 mA 32 Display parameters b
16. A 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 does not exceed 16 registers for single frame GD The device interprets the broadcast messages but then do not sends the answers 39 User manual RATEMETER STI N118 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 02h No 0 999999 Measurement value no decimal point The status of the current measurement 0 data valid
17. Assisting the automation rz simex industry since 1986 User manual RATEMETER STI N118 e Firmware v 6 00 or higher e Input type pulse e Rotational linear speed control JENTER RESET CE Read the user s manual carefully before starting to use the unit or software Producer reserves the right to implement changes without prior notice 2014 12 30 STI N118_INSSXEN_v 2 06 002 User manual RATEMETER STI N118 CONTENTS 4 5 Z Z 4 2 AGSSEMBIN it 4 3 CONNECTION METHOD zismeg te eesto deine ea alee tesa ase Gianna liwia 8 4 4 MAINTENANCE eeben eebe ege SE MZ 5 FRONT PANEL DESCRIPTION 18 6 PRINCIPLE OF OPERATION 19 6 1 MEASUREMENT MODE 19 6 2 DETECTION OF THE PEAK VALUE 6 3 CONTROL OF THE RELAY OUTPUTS SE 6 3 1 One threshold MOJE se issseccicicscnscaersstearesccesicavecnscaenditanddsvecsacisecsssnecsiteqdsanessaceqtssbecsiteadtipeoneds 22 6 3 2 Two thresholds MOJE zasada NE A EA dO A iarra Eaa 23 7 DEVICE PROGRAMMING 24 7 1 PROGRAMMING MENU sa Z2 PARAMETERS EDITION occ ooo add zd ere 25 7 2 1 Numeric parameters digit change model 25 7 2 2 Numeric parameters slide change mode SE 7 2 3 Switch parameters LIST type 26 73 MENU DESCRIP HON ergeet 26 T31 TELAYT EE 26 7 3 2 inPUt menu 28 7 3 3 FiLtEr menu 30 7 3 4 OutPUt menu 7 3 5 briGHt parameter Be 7 3 6 HOL
18. LED indicators only In such case LEDs indicates exceeding of particular thresholds first threshold of the relay range 0 999999 Threshold is the medium value of relay hysteresis second threshold of the relay range 0 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 HYSt or SEt P2 HYSt does not exceed the measure range Additionally in two threshold mode 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
19. St sets a hysteresis of the relay Figure 6 4 a The relay can change his state only when input value exceeds over or under border value and ta ts tc to times Figure 6 4 are bigger than the time defined by parameters ton 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 4 a b c 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 t on see points BON DON Figure 6 4 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 BOFF DOFF Figure 6 4 a d e 22 User manual RATEMETER STI N118 If ta ts Je 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 4 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 contained in zon
20. UNC REG H L COUNT H L CRC LH 00 06 00 22 00 04 29 D2 DATA H 0 DATA L 4 new baud rate 19200 baud E 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 CH C7 DATA H L written value 10h 16 out of allowable range 0 5 Device response with exception code 03h ADDR FUNC ERR CRC L H 01 86 03 09 C1 D There is no full implementation of the Modbus Protocol in the device The functions presented above are available only 45 User manual RATEMETER STI N118 11 DEFAULT AND USER S SETTINGS LIST Parameter Description Default value User s value pania Parameters of relay R1 operation rELAy1 menu SEt P Relay first threshold 20 0 27 SEt P2 Relay second threshold 30 0 27 HYSt Hysteresis of relay 0 0 27 modE Operation mode of relay Big 27 ton Turn on delay of relay 0 0 sec 28 toFF Turn off delay of relay 0 0 sec 28 unit Unit of t on toFF parameters of relay SEC 28 ALArmS Reaction for critical situation of relay oFF 28 Parameters of relay R2 operation rELAy2 menu SEt P Relay first threshold 40 0 27 SEt P2 Relay second threshold 50 0 27 HYSt Hysteresis of relay 0 0
21. abilized Relay output 0 1 or 2 NO 1A 250V AC cos 1 OC type output 0 1 or 2 30mA 30VDC 100mW Active current output optional for one relay or one OC type output version only Load resistance max range max 0 24 mA 700 Q Passive isolated current output optional for one relay or one OC type output version only Supply voltage Load resistance max range max 2 8 24 mA Us 9 5 36V Us 9 5V 24mA kQ User manual RATEMETER STI N118 Active voltage output optional for one relay or one OC type output version only Load resistance min range max 0 11V 2000 Q Display range Communication interface Baud rate Display Data memory Protection level Housing type Housing material Housing dimensions without glands with glands Operating temperature Storage temperature Humidity Altitude Screws tightening max torque Max connection leads cross section Safety requirements EMC 0 999999 plus decimal point RS 485 8N1 and 8N2 Modbus RTU not separated 1200 bit s 115200 bit s LED 6 digit 13mm height red non volatile memory EEPROM type IP 67 wall mounted ABS fibreglass 110 x 80 x67 mm 110 x 105 x 67 mm 0 C do 50 C or 20 C to 50 C 10 C do 70 C or 20 C to 70 C 5 to 90 no condensation up to 2000 meters above sea level 0 5 Nm 3 mm for connectors 1 6 or 2 mm for connectors 7
22. cancel the changes press ESC button shortly after SEt is displayed After that device returns to the menu 25 User manual RATEMETER STI N118 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 causes 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 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 SEt 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 i
23. ccessible 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 5 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 thresholds 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 Some of the parameters can be accessed without menu entering quick view mode After pressing or v button name of the threshold e g
24. ce has 5 buttons being used for main presets programming To get high protection level the keyboard is mounted under transparent cover To allow user to change presets without opening the cover an IR sensor is mounted Remote controller contains basic functions to handle menu of the device Note that remote controller is not a part of the STI N118 set it is an additional equipment Additional features e settable width of measurement window from 0 1 to 39 9 seconds possible direct access to relays thresholds values e additional multiply and division coefficients for result scaling User manual RATEMETER STI N118 3 TECHNICAL DATA Power supply voltage depending on version External fuse required Power consumption 85 230 260V AC DC 50 60 Hz separated or 19 24 50V DC and 16 24 35V AC separated T type max 2 A max 5 VA 85 260V AC DC max 5 VA Q 16V 35V AC max DW 19V 50V DC Pulse input Input levels low level high level Frequency measurement accuracy Rotational speed precision Rotational speed unit Time between following pulses fully Isolated with denouncing filter and pulse width control max input frequency 50 0 kHz OV 1V 10V 30V about 12 mA 24V 0 02 full temperature range Selected from range 0 0 00000 rev min rev sec or rev hour settable from 0 1 to 39 9 sec Sensor power supply output 24V 5 10 max 100 mA st
25. d menu 38 7 3 7 SECH menu 38 7 3 8 rS 485 menu 34 7 3 9 Edit t parameter re 7 3 10 dEFS parameter rs fs TBD ee 38 f 4 MENU STRUGTURE EE 36 8 EXAMPLES OF MUL AND DIV PARAMETERS CALCULATION 1 1 38 9 OUTPUT VALUE CALCULATION sssccssessssssessssenssssesssssessesssssnsceees seg 10 THE MODBUS PROTOCOL HANDLING s1scssssccsssscssesscsssscsssssssesssssnscsnnenssesessnessssssssenansssonsasenensesenes 10 1 LIST OF EE 40 10 2 TRANSMISSION ERRORS DESCRIPTION 10 3 EXAMPLES OF QUERY ANSWER FRAMES 44 11 DEFAULT AND USER S SETTINGS LIST sssccssssccsssccssssccsssscsssscssssscssssecssssssssnsssnsssssssssssssssssssneenesenss 46 User manual RATEMETER STI N118 Explanation of symbols used in the manual This symbol denotes especially important guidelines concerning the installation and operation of the device Not complying with the guidelines denoted by this symbol 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 AY The manufacturer is not responsible for any damages caused by inappropriate installation not maintaining the proper environmental conditions and using the unit contrary to i
26. d output value Out AL exceeds defined range then analogue output generates signal equal to upper or lower border of the defined range These parameters defines the percentage extension of nominal analogue range with 0 1 resolution Parameter Lo r defines lower border of the range due to formula Qutni A A x Lo r where A lower signal value range limit This parameter can be set from O to 99 9 for active current output and active voltage output or from O to 29 9 for passive current output Parameter Hi r defines higher border of the range due to formula Qutna B B x Hi r where B higher signal value range limit This parameter can be set from 0 to 19 9 for active and passive current output or from O to 9 9 for active voltage output In example on page 39 of the DISPLAY VALUES CALCULATION paragraph the procedure of the analogue outputs determining is presented in details this parameter determines the behaviour of analogue output if any critical situation occurs According to version of the device this parameter can be set For active current output noCH 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 For passive current output noCH current will not change 22 1 current will be set to 22 1 mA 3 4 current will be set to 3 4 mA For act
27. d value measurement and status the device address 01h ADDR FUNC REG HL COUNT HL CRC LH 01 03 00 01 00 03 54 OB The answer ADDR FUNC BYTEC DATA H1 L1 DATA H2 L2 DATA H3 L3 CRCL H 01 03 06 00 01 86 AO 00 00 2A B4 DATA H1 L1 reg 01h 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 can be read from reg 04h PrEc parameter a Decimal point position is not included in measurement value reg 01h and 02h 2 Read of device ID code ADDR FUNC REG HI COUNT HL CRC LH 01 03 00 21 00 01 D4 00 The answer ADDR FUNC BYTEC DATA H L CRC LH 01 03 02 20 5C Al BD DATA identification code 205Ch 44 User manual RATEMETER STI N118 3 Change of the device address from 1 to 2 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 LH 01 06 00 20 00 02 09 C1 4 Change of baud rate of all devices connected to the net BROADCAST message ADDR F
28. e of the input signal 21 User manual RATEMETER STI N118 6 3 1 One threshold mode Figure 6 4 presents the principle of relay outputs operation for one threshold mode and an example values of other parameters displayed value A t t t signal t SEt P parameter gt gt re j a gt expected signal value a zone A d i bil A Lt f HYSt parameter zone B GE e allowed signal i EM A Da deviation b relay state 4 We modE on Na NEA Li mi ton 0 1 1 closed A WW Na toFF 0 i rit l open I LE WEEK BREE time c relay state 4 gei I KA H i i l modE oFF NE PT 1 dE ton 0 a Lech toFF 0 i ii gt i a zb pet time relay state 4 KS e i o d madE nf ei moe ton gt 0 ee E t oFF gt 0 open I I i I BE lt gt lt gt time e relay state A Lo R d modE oFF rt closed a ton gt om i K Ke m PEL l f ioi Stag i i time wt OFF ton EA 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 to time periods while input signal is in zone A or zone B Figure 6 4 Principle of LED relay output operation for one threshold mode Parameter SEt P sets a threshold of the relay and parameter HY
29. e A Figure 6 4 a The parameter AL 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 3 2 Two thresholds mode displayed value A phe ra gt a gt zone B i f H E SEt P or SEt P2 SEt2 Eu parameter zone B b relay state modE in ton 0 t oFF 0 c relay state modE out ton 0 t oFF 0 relay state d modE in ton gt 0 t oFF gt 0 relay state A ton parameter e modE out ton gt 0 t oFF gt 0 I er x t oFF parameter t on parameter t oFF parameter Description A B C D E points where measured signal exceeds border values expected value allowed deviation Bon Borr Con Corr Eon Eorr relays state changes moments for t on gt 0 t OFF gt 0 ta te te to te time periods while input signal is in zone A or zone B Figure 6 5 Principle of LED relay output operation for two thresholds mode 23 User manual RATEMETER STI N118 Figure 6 5 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 a
30. f the input signal can be set to values norm peaks peak and next drop of the input signal of value equal at least PEA inv drops drop and next peak of the input signal of value equal at least PEA PEA minimal detected signal change classified as peak or drop see Figure 6 1 timE maximum time of displaying of the peak drop value can be set from 0 0 to 19 9 sec with 0 1 sec resolution If HdiS HOLD then setting parameter timE 0 0 causes holding peak value until ESC button is pressed If HdiS rEAL then value timE 0 0 means no holding HdiS type of displayed values rEAL current value is displayed HOLd peak drop value is displayed H r1 H r2 relay LED outputs R1 R2 operation mode rEAL relay LED operates depend on the current value HOLd relay LED operates depend on the peak drop value HOUt current output operation mode rEAL current output operates depend on the current value HOLd current output operates depend on the peak drop value 7 3 7 SECU menu This menu contains presets connected with availability of other parameters SEtcod user password 4 digits number If this parameter is set at value 0000 user password is turned off 33 User manual RATEMETER STI N118 If the user do not remember his password the access to the
31. h 0 20 mA mode 4 20 current output enabled with 4 20 mA mode modb current output controlled via RS 485 interface For passive current output OFF current output disabled 4 20 current output enabled with 4 20 mA mode modb current output controlled via RS 485 interface For active voltage output OFF voltage output disabled 0 5 voltage output enabled with 0 5V mode 1 5 voltage output enabled with 1 5V mode 0 10 voltage output enabled with 0 10V mode 2 10 voltage output enabled with 2 10 V mode modb voltage output controlled via RS 485 interface OU this parameter determines the input value for which the output signal is minimal depend of output mode Omod OUT this parameter determines the input value for which the output signal is maximal depend of output mode Omod The analogue output value is calculated due to formula given below W OUtL t x B A A t roum roun 7749 where W displayed value Out analogue output value B higher range limit 20mA 5V 10V A lower range limit OmA 4mA OV 1V 2v OutL parameter can be greater than OutH In this case the conversion characteristic is reversed it means that if input value raises the output value falls 31 User manual RATEMETER STI N118 Lo r Hi r this parameters define the output value range If calculate
32. ile time per one revolution is displayed parameter F or P PEriod f input frequency equals 0 then message StoP is displayed e If value of period is too high to be fitted on 6 digits message OvLd Overload is displayed instead of the result e f input frequency is different than O but value of period is too small to be fitted on 6 digits message UnLd Underload is displayed instead of the result D If input frequency is in the permitted range but calculated value can not be fitted In the measurement mode user can check main thresholds values After pressing or v button name of the threshold e g rELPr1 and his value will be displayed on the display in alternating mode If or v will be pressed in 5 sec again the next threshold will be displayed else the device comes back to the measurement mode If a free access is enabled see description of SECu menu user can change the value of particular threshold pressing button ENTER see PARAMETERS EDITION 19 User manual RATEMETER STI N118 Input type range of displaying values characteristic of conversion decimal point position and measure filtering ratio are user configurable parameters All accessible parameters can be changed by entering the menu see DEVICE PROGRAMMING Use the local keyboard or the remote controller to do it Note all parameters can be remote changed via RS 485 interface Configurati
33. ilter 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 RATEMETER STI NI 18 Connections of power supply voltage and measurement signals are executed using the clamping connections on the back of the unit s housing a b ABP 5mm max 1 6 mm Figure 4 2 Recommended dimensions of cable stripping a for big connectors 1 to 6 b for small connectors 7 to 16 Figure 4 3 Method of connecting cables to the clamping connectors 4 All connections must be made while power supply is disconnected R1 option MS RS 485 w input AM src POREOLULELEEU 2 RANA 24V 5 10 Imax 100 mA depending on version Power SEN Figure 4 4 Terminals description relay outputs 10 User manual RATEMETER STI N118 OC1 OC2 Umax 30V DC Imax 30mA Pmax 100mW OCH oc2 RS 485 m input option option EES o c S gt BS 24V 5 10 Imax 100 mA on version Power depending Figure 4 5 Terminals description OC type outputs R1 option SE current ouipu RS 485 input Gel A EES 8 d S E 24V 5 10 Imax 100 mA depending on version Power sA Figure 4 6 Terminals description relay and active current outputs 11 User manual RATEMETER STI N118
34. ive voltage output noCH voltage will not change 11 0 voltage will be set to 11 V 5 5 voltage will be set to 5 5 V 1 2 voltage will be set to 1 2 V 0 6 voltage will be set to 0 6 V 0 0 voltage will be set to 0 V When the critical situation goes the output signal will be set to value calculated due to formulas given above 32 If parameter OUtmod is set to oFF 4 20 0 20 0 5 1 5 0 10 or 2 10 the critical situation means that permissible 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 User manual RATEMETER STI N118 Before turning off the device it is recommended to first disable the current output s power supply and then the device itself If the current output is supplied while the device itself is turned off the output current will be about 27 5 mA 7 3 5 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 6 HOLd menu This menu contains parameters connected with peak detection function See also full description of the peak detection function in paragraph DETECTION OF THE PEAK VALUES modE the type of detected changes o
35. l is realized via relay outputs Front panel LEDs named R indicates the state of particular relay output If device is not equipped with one or more relay outputs menus refer to this relays D are available but apply to LED indicators only In such case LEDs indicates exceeding of particular thresholds Modes of the control can be changed depend on the values of parameters SEt P SEt P2 HYSt modE t on 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 2 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 3 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 HYSt parameter Figure 6 2 One threshold control of the relay LED outputs state of relay LED SEt P or SEt P2 SEt2 parameter vi Ar w ST measure HYS parameter Figure 6 3 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 detection is activ
36. lue 1 peaks or drops values H r1 parameter in HOLd menu the control mode of relay R1 74h Yes 0 1 and LED R1 l 0 control depends on current measurement values 1 control depends on peaks or drops values H r2 parameter in HOLd menu the control mode of relay R2 75h Yes 0 1 and LED R2 l 0 control depends on current measurement values 1 control depends on peaks or drops values HOut parameter in HOLd menu 2 78h Yes 0 1 0_ EAL mode 1 HOLd mode 88h Yes 0 1 F or p parameter in InPUt menu kind of value visible on the display 0 frequency 1 period AOh Yes 0 3 OUtmod parameter in OUtPUt menu active current output mode 0 current output disabled 1 current output enabled with 4 20mA mode 2 current output enabled with 0 20mA mode 3 current output controlled via RS 485 interface 42 User manual RATEMETER STI N118 Register Write Range Register description Yes OUtmod parameter in OUtPUt menu passive current output mode 0 current output disabled 1 current output enabled with 4 20mA mode 2 current output controlled via RS 485 interface Yes OUtmod parameter in OUtPUt menu active voltege output mode 0 voltage output disabled 1 voltage output enabled with 0 5V mode 2 voltage output enabled with 1 5V mode 3 voltage output enabled with 0 10V mode 4
37. mage Any transportation damage must be immediately reported to the carrier Also write down the unit serial number on the housing and report the damage to the manufacturer Attached with the unit please find user s manual warranty 4 2 ASSEMBLY AY Disconnect the power supply prior to starting assembly Check the connections are wired correctly prior to switching the unit on dimensions of the device and distances between holes The back side of the device has four mounting holes This part of the case should be mounted to a wall by screws i To install device on the wall a pinholes should be made Figure 4 1 presents User manual RATEMETER STI N118 Le 110 mm gt 67 mm p 90 mm gt ej E E Ei E 3 8 oh R sk SSE s Figure 4 1 Device and assembly dimensions 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
38. menu no decimal point included 41 User manual RATEMETER STI N118 Register Write Range Register description 42h ER 0 99999 HySt parameter in rELAy2 menu no decimal point included 43h Yes modE parameter in rELAy2 menu 44h Yes 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 rELAy2 menu expressed in tenth of seconds or tenth of minutes depend on unit parameter 47h Yes 0 1 unit parameter 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 8 R bo z nti 0 999999 SEt P2 parameter in rELAy2 menu no decimal point included 4Ah Yes 70h Yes 0 1 modE parameter in HOLd menu type of detected changes 0 peaks 1 drops 74h Yes 0 999999 PEA parameter in HOLd menu minimum detectable change no decimal point included 72h Yes 0 199 timE parameter in HOLd menu maximum peaks or drops display time expressed in seconds HdiS parameter in HOLd menu the type of values displayed on 73h Yes 0 1 the display 0 current measurement va
39. 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 GD 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 Acc r1 Acc r2 this option permits user on or prohibits oOFF to modify the thresholds of the relays LEDs R1 R2 without knowledge about user password 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 O to 199 If the value O is set then device responds to frames with address 255 FFh pAud this parameter determines RS 485 interface baud rate It can be set to one of 8 possible values 1200 2400 4800 9600 19200 38400 57600 115200 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 b
40. n Tab 7 1 Minimum permitted duration time of Low and High states are related to every value of FrEq parameter If particular state is shorter than showed in Tab 7 1 it is interpreted as disturbance and ignored User manual RATEMETER STI N118 Parameter Minimum duration Permitted duty cycle FrEq Hz of low and high states for max frequency 10 5 ms 5 95 15 3 4 ms 5 95 20 2 5 ms 5 95 30 1 7 ms 5 95 40 1 3 ms 5 95 50 1 ms 5 95 100 500 us 5 95 300 167 us 5 95 1 000 50 us 5 95 3 000 33 us 10 90 10 000 33 us 33 66 50 000 not controlled not controlled Tab 7 1 Allowable settings of FrEq parameter and related with them minimum durations of logical states PULSen input divider can be set in range 1 to 19 999 This parameter defines the number of pulses per single revolution Value 0 is interpreted by firmware as 1 pulse rev D This parameter must be set correctly to let device works properly PrEc precision of result displaying There are available settings from 0 precision of 1 unit to 0 00000 precision with 5 digits after decimal point unit The unit of rotational speed used for recalculation of current measurement can be set to SEC result expressed in revolutions second min result expressed in revolutions minute hour result expre
41. 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 if the name of some sub menu is displayed enter this sub menu name of the first parameter or next level sub menu is displayed s 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 GW After about 1 min since last use of the buttons device exits the menu mode and returns to the measurement mode only if no parameters are in editing mode 7 2 PARAMETERS EDITION To start edition of any parameter user should select name of desired one using v 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
42. on of the device via menu or RS 485 interface does not stop measures 6 2 DETECTION OF THE PEAK VALUES The STI N118 controller is equipped with peaks detection function It can detect a peaks of the input signal and display their values Presets connected with this function are placed in HOLd menu see description of HOLd menu The detection of the peak can be done if the measured signal raises and drops of value at least equal to parameter PEA Detected peaks are displayed during the time defined by parameter timE If a new peak will be detected while one is displayed this new peak will be displayed and display time counter will be cleared Figure 6 1 If no peaks are detected while time timE elapses device starts to show the current value of input signal again If HdiS HOLD then setting parameter timE 0 0 causes holding peak value until ESC button is pressed If HdiS rEAL then value timE 0 0 means no holding Displaying peak value is signalized by flashing most right decimal point The relays LEDs and the analogue output can be controlled depend on the current value of input signal or the peak value see HOLd menu a measure timE timE real measurement result display value Figure 6 1 Process of peaks detection 20 User manual RATEMETER STI N118 6 3 CONTROL OF THE RELAY OUTPUTS The control of the object measured signa
43. riGHt Display brightness bri6 33 Configuration of peaks detection function HOLd menu modE Kind of detected changes norm 33 PEA Minimum detected change 0 0 33 timE Maximum time of peak displaying 0 0 sec 33 H diS The type of displayed value fEAL 33 Hr Source of relay R1 and LED R1 control fEAL 33 H r2 Source of relay R2 and LED R2 control fEAL 33 HOut Source of current output control rEAL 33 Settings of access to the configuration parameters SECU menu Acc r1 Permission to changes of relay R1 threshold an 34 without of the user password knowledge Acc 12 Permission to changes of relay R2 threshold iy 34 without of the user password knowledge RS 485 interface configuration menu rS 485 Addr Device address 0 34 bAud Baud rate 9600 b sec 34 mbAccE Permission to changes of configuration registers yon 34 mbtimE Maximum delay between received messages 0 34 rESP Additional delay of answer transmission Std 35 Configuration of numerical parameters edition Edit t Numerical parameters edit mode dig 35 47 fg simex SIMEX Sp z 0 0 ul Wielopole 11 80 556 Gda sk Poland tel 48 58 762 07 77 fax 48 58 762 07 70 http www simex pl e mail infoQsimex pl
44. rn 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 If time when the input signal exceeds some border value is shorter than t on or t OFF time the relay do not change his state see paragraph CONTROL OF THE RELAY OUTPUTS unit unit of time for t on and 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 in or Out the critical situation means that permissible input frequency 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 7 3 2 inPUt menu This menu contains options of pulse input configuration FrEq 28 maximum permitted frequency of pulses delivered to the input This parameter is expressed in Hz And can be set to one of all values showed i
45. s and functions of push buttons Symbol used in the manual ESC MENU MENU Functions s Enter to main menu press and hold by at least 2 sec Exit the current level and Enter to previous menu or measure mode e Cancel the changes made in parameter being edited Symbol used in the manual ENTER Functions e Start to edit the parameter Enter to the sub menu e Confirmation of changes made in parameter being edited Symbol used in the manual 4 v Functions e Change of the present menu e Modification of the parameter value Change of the display mode ENTER 18 User manual RATEMETER STI N118 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 In the measurement mode the device shows current measurement value rotational speed or time per one revolution it depends on E or P parameter with resolution defined by PrEc parameter max 5 digits after decimal point Pulses delivered to the input Figure 4 14 are converted in manner described below If duration of LOW or HIGH state is lower than time defined by parameter FrEq see Tab 7 2 on page 35 pulses are interpreted as disturbances and ignored e If duration of both states is in the defined range but their frequency is lower than value of FrEq parameter the device goes to alarm
46. s 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 WEI 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 Error and unit returns to measurement mode o Independently in user manual letter m is used to make it more readable a 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 26 User manual RATEMETER STI N1 18 SEt P SEt P2 HYSt 9 modE d e The relay outputs and LEDs named R can be controlled depend on both the current value and the peak value when peak detection is active of the input signal e If device is not equipped with one or more relay outputs menus refer to this relays are available but apply to
47. sive shocks vibrations dust humidity corrosive gasses and oils Do not use the unit in areas where there is risk of explosions Do not use the unit in areas with significant temperature variations exposure to condensation or ice 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 The main purpose of STI N118 tachometer is measuring of the rotational speed in range 1 5 to 50 000 r min The device can be used as frequency meter as well Main feature of the tachometer is high precision of measurement 0 02 in full temperature range User can set input divider in range 1 to 19 999 and additional scale coefficients The device can be equipped with two relay or OC type outputs Optionally STI N118 with one relay or OC type output can be equipped with active current output passive isolated current output or active voltage output These outputs can be controlled depend on momentary value of rotational speed Device STI N118 is equipped with RS 485 Modbus RTU communication interface and sensor supply output The meter can be ordered in two power supply versions The devi
48. ssed in revolutions hour F or P kind of value shown on the display Freq frequency rotational speed PEriod period time per one revolution 29 User manual RATEMETER STI N118 mUL multiplication coefficient The value by which current measurement result is multiply to recalculate it to desired unit e g linear speed can be set in range 0 to 999 999 value 0 is interpreted as 1 000 000 div divide coefficient The value by which current measurement result is divided to recalculate it to desired unit e g linear speed can be set in range 0 to 999 999 value 0 is interpreted as 1 000 000 Parameters mul and div can be used to rescale of measurement value setting proper values recalculation of rotational speed to linear speed can be done automatically ZEro t maximum delay time of successive revolution This parameter is defined with 0 1 second precision in range 0 39 9 If delay between successive revolutions are longer than defined value device displays 0 instead of current measurement If parameter ZEro t is set to value lower than parameter mEAS t the mEAS t value is used as maximum delay to next revolution time Expression successive revolution means the number of input pulses equals to value of parameter PULSen mEAS t minimum measurement window width The measurement window means the time period after which co
49. state relays and analogue output if mounted are switched to their alarm states defined by their ALArmS parameters In this state message Hi is displayed instead of measurement value s In other cases during frequency and duration of the signal are in permitted ranges pulses are delivered to internal frequency divider The divider see description of parameter PULSen should be set to value equal the number of pulses per revolution in such case one pulse goes out of the divider every revolution and it allows to minimize errors caused by roughness of measurement element e g rack if inductive detector is used The frequency after the divider is recalculated according to selected by user measurement unit parameter unit and can be expressed by rev sec rev min or rev h Final value is obtained by multiplication the measurement result by parameter mul and division by parameter div Parameters mul and div allow to free scaling of the measurement and obtain automatic recalculation of rotational speed to linear speed see example on page 38 Obtained result is displayed during measurement mode and is the base of relays and analogue output states calculation and is accessible via RS 485 interface with MODBUS protocol on 6 digits message OvLd is displayed instead of the result modify parameters unit PrEc mul and div to fit the result on 6 digits Wh
50. supply and relays Contacts of relay outputs are not equipped with spark suppressors While use AN 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 14 User manual RATEMETER STI N1 18 a b N Figure 4 13 Examples of suppression circuit connection a to relay terminals b to the inductive load Construction of pulse input allows connecting of inductive or optical sensor with common earth Figure 4 14a or common plus Figure 4 14b without additional intermediary circuits sensor with NPN or PNP type output Uo PNP type NPN type sensor sensor Figure 4 14 An example of sensor connection a with common earth b with common plus 15 User manual RATEMETER STI N118 Logic controller LED 10 mA 2k2 voltage input 24 V Figure 4 15 Example of OC type outputs connection ACTIVE Current output HD Logic controller Current input 0 20 mA Figure 4 16 Example of active current outputs connection for device with ac
51. tion 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 a priGHt parameter display brightness RM yes URE 1 the lowest brightness 8 the highest brightness gt Edit parameter numerical parameters edit mode SIE Yes SC 0 dig mode 1 SLid mode 30h Yes e 5 dg 5 sa E 31h Yes 0 999999 SEt P parameter in rELAy1 menu no decimal point included SCH ves 0 99999 HySt parameter in rELAy1 menu no decimal point included 33h Yes modE parameter in rELAy1 menu 34h Yes 0 5 0 noACt mode 1 on mode 2 oFF mode 3 in mode 4 out mode 5 modbuS mode 35h Yes 0 999 ton 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 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 Yes 0 2 ALArmS parameter in rELAy1 menu 0 no changes 1 on 2 off 39h Yes Ion inti 0 999999 SEt P2 parameter in rELAy1 menu no decimal point included 3Ah Yes a E 0 999999 SEt P parameter in rELAy2
52. tive current output only PASSIVE Uo Current output Logic controller Isolation loss Current input 4 20mA Figure 4 17 Example of passive current outputs connection for device with passive current output only 16 User manual RATEMETER STI N1 18 ACTIVE voltage output HD Logic controller voltage input 0 10V Figure 4 18 Example of active voltage outputs connection for device with active voltage output only 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 AY Using any other agents can cause permanent damage to the housing V Product marked with this symbol should not be placed in municipal waste Please f X check local regulations for disposal and electronic products 17 User manual RATEMETER STI NI 18 5 FRONT PANEL DESCRIPTION alarm LED indicator AL Thresholds exceeding X LED indicators R infrared receiver display programming pushbuttons Symbol
53. 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 only 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 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 is pressed shortly and button v is still pressed decreasing slow down for a moment only if 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
54. ts assignment 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 If the device is equipped with PE connector it should be connected to PE wire Otherwise PE wire should be connected to GND connector 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 unit malfunction 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 connected equipment must meet the appropriate standards and regulations concerning safety and be equipped with adequate overvoltage and interference filters Do not attempt to disassemble repair or modify the unit yourself The unit has no user serviceable parts Defective units must be disconnected and submitted for repairs at an authorized service centre User manual RATEMETER STI N118 Do not use the unit in areas threatened with exces
55. unted pulses are recalculated and displayed and it is similar to refresh rate This parameter can be set with 0 1 sec resolution in range 0 19 9 sec If time delays between successive pulses are longer than mEAS t time then GW measurement window width is automatically fitted to input frequency 7 3 3 FiLtEr menu This menu contains parameters referred to additional data result filtration VALUE this parameter sets filtration rate It can be set to values from 0 no filtration to 5 strongest filtration time window about 3 5 sec droP this parameter defines minimum percentage change of measured value which turns off temporally data filtration Value of this parameter can be changed in range 0 199 9 Main purpose of this parameter is acceleration of displaying data changes when sudden changes of instantaneous measurements value occur while parameter VALUE is set to high values 30 User manual RATEMETER STI N1 18 7 3 4 OutPUt menu This menu contains parameters of analogue output control Menu is available if the device is equipped witch analogue output Analogue output can be controlled depend on both present measured value and peak value if peak detection is enabled Omod analogue output mode Depending on version of the device there are following options For active current output OFF current output disabled 0 20 current output enabled wit
56. y mbAccE parameter see 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 0 to 99 seconds The value 0 means that the time will be not controlled 34 User manual RATEMETER STI N118 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 quick as possible no additional delay 10c 20c 50c 100c 200c answer delayed of 10 20 50 100 of 200 chars respectively where one character time depends on selected baud rate Unfortunately for some third party RS converters rESP should be adjusted In the most cases parameter rESP should be set to Std no additional delay experimentally Table 7 2 contains most frequently used values bAud parameter 38400 57600 115200 rESP parameter 10c

User Manual - Metrix Electronics Ltd

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