USER MANUAL DIN Rail Mounting Temperature - E
Contents
1. TITLE RFS User Manual 170 IU0 RFS 001 USER MANUAL RFS DIN Rail Mounting Temperature Controller ERO Electronic division of Eurotherm s r l Via Enrico Mattei 21 1 28100 Novara ITALY Tel 39 0321 481111 Fax 39 0321 481112 e ERO ELECTRONIC Page GB 2 51 TITLE RFS User Manual 170 IU0 RFS 00E Page GB 3 51 TITLE RFS User Manual 170 IU0 RFS O0E Index MOUNTING REQUIREMENTS aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaanaaanannnnnnannanannnnnnnnnnnnnnnnaaaanannnnnannnn DUTENE DIMENSION S S E CONNEC TON DIAGRAMS dass ectnctnanchusiarsesysersuiuumaesyeinchuamcha valentin l E FRSC SO OFIERA E RE E E E E E EEE EREE EERE PUNG HONAC Yaongea aa E A E A A E A E E E E SPECIAL FUNCTIONS DURING OPERATIVE MODE aaaiiiaaiiaaaaaaaaaaaaaaaas naaaaaanaaananaaaaanaaannna GENERAL NOTES ON THE MODBUS RTU PROTOCOL ccccceceeeeeeeeeeeeneeeeeeeeeeteeseeneeeeees TRANSMISSION FORMA TN sa citsgceataatncantenad eauann tana dda nasaiegaduananndgadcnncnastennddenansigadsananndgacansaaaetnsataneacdniadaanaa COMMUNICATION PROCEDURE assess RRR R FUNCTION CODE 1 AND 2 BITS READING aa2iiaaaaaaaaaaaaaaaaas nnnannnanananananaananuaanaaaanaananaaananaaaaa FUNCTION CODE 3 AND 4 WORDS READING iiiiaaaaaaaaaaaaaaaaaa aaaaaananannnaanananaaannaaaaaaannaannaaaaaa FUNCTION CODE 5 SINGLE BIT WRITING usi seanutoonsmtdsnmusmarmundise FUNCTION CODE 6 SINGLE WORD WRITING aiiaaaaa2. This process is repeated until eight shifts have been performed After the last shift the next byte is exclusive ORed with the register s current value and the process repeats for eight more shifts as described above The final contents of the register after all the characters of the message have been applied is the CRC 16 value A procedure for generating a CRC 16 is 1 Load a 16 bit register CRC 16 register with FFFFh all 1 s 2 Exclusive OR the first byte of the message with the low byte of the CRC 16 register Put the result in the CRC 16 register 3 Shift the CRC 16 register one bit to the right toward the LSB zero filling the MSB Extract and examine the LSB 4 lf the LSB was 0 Repeat Step 3 another shift If the LSB was 1 Exclusive OR the CRC 16 register with the polynomial value A001h 1010 0000 0000 0001b 5 Repeat Steps 3 and 4 until 8 shifts have been performed When this is done a complete byte will have been processed 6 Repeat Steps 2 through 5 for the next byte of the message Continue doing this until all bytes have been processed 7 The final contents of the CRC 16 register is the CRC 16 value When the CRC 16 16 bytes is transmitted in the message the low byte will be transmitted first followed by the high byte Page GB 17 51 TITLE RFS User Manual 170 IU0 RFS O0E An example of a C language function performing CRC generation is shown below Cre LG calculate the
3. E 1 Auxiliary set point 1401 Target set point in engineering units re a L 1402 Working set point in engineering units oo fo L 1403 Main set point in engineering units r re nf t i 1404 Volatile set point in engineering units pire ren gaw cae _ 0 Range 0 Main set point 1405 Auxiliary set point in engineering units SP L Limit OC OC TB1 Note Available only if selectable SP H Limit LFEILF TB2 1406 Set point high limit in engineering units sa nf st T _ Par 1407 Set point low limit in engineering units rd va re i V _ s 1 100 Rate of change for positive set point 32767 OC OC variation 7FFFh LFILF ey gradient in engineering units per minute for step change 1 100 Rate of change for negative set point 39767 OC OC variation 7FFFh LFILFE es gradient in engineering units per minute for step change Page GB 38 51 TITLE RFS User Manual 170 IU0 RFS O0E Modbus Address Default DESCRIPTION Value Operative set point alignment at start up Range 0 The operative set point will be aligned to the set point selected by digital input or by the serial link 1 The operative set point will be aligned to the actual measured value and then it will reach the selected set point with the programmed ramp Address 1408 1409 NOTE if the instrument detect an out of range or an error condition on the measured value it will operate as described for 1410
4. REMOVING CIPI Ala alg Page GB 4 51 170 IU0 RFS 00E Fig 1 B OUTLINE DIMENSIONS 117 101 22 5 Jezxaaan 8 5 131 120 ZN ShRQBQqGen Foe Fig 2 OUTLINE DIMENSIONS CONNECTION DIAGRAMS eo Fig 3 TERMINAL BLOCK TITLE RFS User Manual MEASURING INPUTS NOTE Any external component like zener barriers etc connected between sensor and input terminals may cause errors in measurement due to excessive and or not balanced line resistance or possible leakage currents TC INPUT Shield Fig 4 THERMOCOUPLE INPUT WIRING NOTE 1 Don t run input wires together with power cables 2 For TC wiring use proper compensating cable preferable shielded 3 When a shielded cable is used it should be connected at one point only RTD INPUT Fig 5 RID INPUT WIRING NOTE Page GB 5 51 170 IU0 RFS O0E 1 Don t run input wires together with power cables 2 Pay attention to the line resistance a high line resistance higher than 20 Q wire may cause measurement errors 3 If shielded cable is used it should be grounded at one point only 4 The resistance of the 3 wires must be the same LINEAR INPUT Fig 6 B 60mV INPUT WIRING NOTE 1 Don t run input wires together with power cables 2 When shielded cable is used it should be grounded at one side only to avoid ground loop currents 3 For mV input pay attention to the line resistan
5. FIRMWARE DEVICE CLASS Availability Always Value 413 for RFS FIRMWARE DEVICE LETTER Availability FIRMWARE REVISION Availability Always Value Nr of firmware revision Manufactured trade mark 50 32h Device identification code Note Number of software revision x 100 identification code 54 36h Serial firmware identification code Availability Always Value 0 TITLE RFS User Manual Modbus Address 901 903 904 DESCRIPTION OUT 1 Leakage current measure value in Ampere Same as address 1201 OUT 1 Load current measure value in Ampere Same as address 1203 OUT 2 value in Same as address 1501 OUT 1 value in Same as address 1500 STATUS Page GB 29 51 170 IU0 RFS O0E OPERATIVE GROUP 900 Note On this group are repeated some information present in other groups The purpose of this is to have these information at consecutive address This solution allows to maximize the data transfer rates between the RFS and the host supervisory system D15 OUT 1 Leakage current measure updating See address 1202 0 Measure updated 1 Measure not updated bD14 0 D13 Status alarm 3 D12 Status alarm 2 D11 Status alarm 1 D10 Status CT alarm Reserved 0 No alarm 1 Alarm 0 No alarm 1 Alarm 0 No alarm 1 Alarm 0 No alarm 1 Alarm D 9 OUT 1 Load current measure updating See address 1204 0 Measure updated 1 Measu
6. Verify that there are no loose terminals 5 Before re power the instrument be sure that it is perfectly dry 6 Turn the instrument ON
7. alarm Operative mode High or low programmable Threshold programmable in engineering unit within the input span Hysteresis programmable from 0 1 to 10 0 of the input span 1104 1103 Page GB 54 51 170 IU0 RFS O0E Band alarm Operative mode Inside or outside programmable Threshold programmable from 0 to 500 units Hysteresis programmable from 0 1 to 10 0 of the input span Deviation alarm Operative mode High or low programmable Threshold programmable from 500 to 500 units Hysteresis programmable from 0 1 to 10 0 of the input span Communication interface Type RS 485 opto isolated Protocol Modbus RTU device acts as slave Baud rate 600 1200 2400 4800 9600 or 19200 baud Data format 8 bit without parity 8 bit even parity or 8 bit odd parity Slave number up to 120 RFS unit could be connected to the same RS 485 network without using repeaters MAINTENANCE 1 REMOVE POWER FROM THE POWER SUPPLY TERMINALS AND FROM RELAY OUTPUT TERMINALS 2 Using a vacuum cleaner or a compressed air jet max 3 kg cm2 remove all deposit of dust and dirt which may be present on the louvers and on the internal circuits trying to be careful for not damage the electronic components 3 To clean external plastic or rubber parts use only a cloth moistened with Ethyl Alcohol pure or denatured C2H5OH Isopropyl Alcohol pure or denatured CH3 2CHOH or Water H20 4
8. of protection scheme is available for this communication parameter you can operate device in two different way 11 1 Make use of the CPI adapter The instrument automatically recognizes the 10 Address space CPI adapter and it will use the following communication parameter set The whole variables are addressable as Address 255 word as well as bit the user may choose the Baud rate 19200 better way according to the condition Bite format 8 bit without parity Although we suggest to manage analog NOTE this is a fixed parameters set and variables as words and boolean variables as it is not configurable bits below is described the behavior to access analog variables example alarm 11 2 At power up the instrument will start threshold as bits and boolean variables using the same communication example alarm status as words parameter set used in presence of the Reading analog variables as bits if the CPI adapter variable is not relevant in the actual device If the instrument receives a correct configuration word value 8000h or if the Modbus request within the first 3 value is zero the bit is reset otherwise the seconds it will continue to operate bit is set with the same communication Writing analog variables as bits the reset parameters bit means 0000h the set bit means If during the 3 seconds time out the 0001h instrument doesn t receive a correct Reading boolean variables as words a request it will set
9. of slave at address 1 1h with value 240 FOh Main set point in Setpoint group Error check CRC 16 high byte Error check CRC 16 high byte Page GB 22 51 TITLE RFS User Manual 170 IU0 RFS O0E Function code 8 Diagnostic By using this command the master unit can check the communication system to Slaves Reply from slave to master Range Slave address 1 255 Function code 08 Sub function high byte Sub function low byte The Sub function code will not be processed by Slave any code is accept The Sub function code and data passed in the request is returned looped back in the slave replay The entire replay message is identical to the request Example Request from master to slave AAh 5 Data Data o ooo OSA Error check CRC 16 low byte Error check CRC 16 high byte Page GB 23 51 TITLE RFS User Manual 170 IU0 RFS O0E Function code 15 Multiple bits writing This function code is used by master unit to set reset a consecutive group of bits Max 24 Error check CRC 16 high byte To use the address 0 see note 1 Broadcast address in the Notes section The desired status of each bit is packed in the Data field 1 ON 0 OFF The status imposed for read only bits will be ignored The command will be processed starting from the first bit and it will be executed or not executed depending on the actual device status At the first error
10. the controller checks the write data to be within the allowable limits for example the main set point must be inside the set point low and high limits 7 Configuration mode Configuration mode is intended to set up the device then the controller doesn t work In configuration mode the master can read and write the whole parameters In configuration mode unlike the operative mode the device returns always a value for each parameters even for the meaningless one this is intended to clone exactly the unit Moreover no check is done by the device receiving parameters it s under the responsibility of the master to send a valid set of parameters If the master fails to follow the above rule it will be impossible to switch the controller in operative mode until the whole set of parameters will be valid 8 Read write access permissions The access permissions are stated for each parameter in the description tables by means of two columns named read and write according the following meaning O access allowed in operative mode C access allowed in configuration mode L access allowed in calibration mode F access allowed in factory test mode Page GB 26 51 TITLE RFS User Manual 170 1U0 RFS 00E 9 Software key for lock unlock control 11 Communication parameters at start parameters up When it is desired to regain the control of an Due to the lack of frontal panel no one instrument with an unknown set
11. 0 Set point selection source Range 0 Set point selected by digital input 1 Set point selected by serial link address 1412 Set point selected by serial link Range 0 Main set point 1 Auxiliary set point Delta applied to the Main set point in engineering units This value will be algebraically added to the main set point address 1403 and then limited Delta applied to the volatile set point in engineering units This value will be algebraically added to main set point address 1404 and then limited Delta applied to the Auxiliary set point in engineering units This value will be algebraically added to auxiliary set point address 1405 and then limited Page GB 39 51 TITLE RFS User Manual 170 IU0 RFS O0E Notes about set point management NOTE 1 In order to make clear the result of different set of the various parameter we have added the following diagram Main SP 1403 Main volatile SP 1404 Ramp up TSP 1408 Working Target set set point point 1401 Ramp down 1402 1409 Auxiliary SP 1405 SP selection by serial link 1412 SP selection source 1411 Digital input 1301 NOTE the main SP 1403 is a value memorized in EEPROM while the main volatile SP 1404 is a value memorized in RAM For this reason when you make a profile setting the set point value by serial link e g with a Supervisory system it is advisable to us
12. 0 200 0 400 0 C 10 RTD Pt100 200 800 C 11 Linear 0 60 mV 12 Linear 12 60 mv 1102 13 Linear O 20 mA 4 20 mA oe al i i k ceo l Mw Page GB 33 51 TITLE RFS User Manual 170 IU0 RFS O0E DESCRIPTION Default 2000 4000 for linear Initial scale value Range limits 2000 4000 for linear B 1104 Full scale value Range aac see limits H for Tc Rtd Decimal point position PV Process variable Range 0 No decimal figure 1 One decimal figure 2 Two decimal figures 3 Three decimal figures Note The write command is enabled only for linear input a Offset adjustment in engineering units 1106 Note Not available for linear ranges Note The minimum input span Full scale value Initial scale value in absolute value must be greater than 100 digits for linear input ranges 300 C 550 F for Tc input ranges 100 C 200 F for Rtd input ranges Page GB 34 51 TITLE RFS User Manual 170 IU0 RFS O0E CURRENT TRANSFORMER INPUT AND ALARM GROUP 1200 sv i ii Address E Value C CT alarm status Load and Leakage alarms a 1209 0 No alarm 1 Alarm Note Available only when the option is Eo OUT 1 Leakage current measured value ooo fo Jal 7 1201 Ampere CT Note Available only when the option is programmed OUT 1 Leakage current measure updating flag Range 0 Measure updated 1 Measure not updated
13. 1 240 TB2 240 O O O O O O FF FF T8 58 58 58 58 58 58 ololo m as efefe je 2 S s sjorn C LF C LF C LF C LF C LF C LF C LF M C TB1 60 1509 Derivative time in seconds 0 600 bes LF TB2 60 OC OC TB1 15 1510 Out 1 Cycle time in seconds 1 200 Bebe TB2 15 Relative cooling gain OC fam TB1 100 1511 20 100 2 EGIN Note Available only for HC control 2110 OC LF TB2 100 Dead band overlap between H C outputs in of the proportional band Notes OC OC la 1 Available only for HC control 20 50 IL F LF 2 A negative value produces an dead band while a positive value produces an overlap 1513 Out 2 Cycle time in seconds 1 200 OC OC TB1 10 Note Available only for HC control LFILF TB2 10 Page GB 41 51 TITLE RFS User Manual 170 IU0 RFS O0E Default Value TB1 100 DESCRIPTION 0 100 for Honly OC OC 100 100 LFILF for H C Time duration of the output power limiter soft Start in minutes OC Hots Note The value 32767 7FFFh means that the limiting hee LF X action is always on Control output max rate of rise in percent of the 1516 Output per second 1 25 OC Note The value 32767 7FFFh means that no ramp LF L limitation is imposed Out 1 action Range pole 0 Direct 1 Reverse Control action type 151g Range 0 The process is controlled by PID actions 1 The process is controlled by PI actions
14. 1202 Notes 1 Available only when the option is programmed 2 If the OFF period is lower than 150 ms the instrument is not able to perform this measure This flag shows the status of the measure OUT 1 Load current measured value in 1203 Ampere CT Note Available only when the option is programmed OUT 1 Load current measure updating flag Range 0 Measure updated 1 Measure not updated 1204 Notes 1 Available only when the option is programmed 2 If the ON period is lower than 150 ms the instrument is not able to perform this measure This flag shows the status of the measure Threshold for alarm on Leakage current 1205 in Ampere O H scale OG Fis gor hs Ej Ej Note Available only when the option is programmed Threshold for alarm on Load current in E 1206 Ampere 0 H Scale 7 ea E js Note Available only when the option is programmed 7 Active period of the load for the current transformer Range 4207 0 Option not provided OC C 1 The load is energized when Out1 is LFILF active Relay ON or SSR 1 2 The load is energized when Out1 is not active Relay OFF or SSR 0 mA 3S on te i J ee Es l 5 Page GB 35 51 TITLE RFS User Manual 170 IU0 RFS O0E Default DESCRIPTION Value CT Alarm reset type Range 0 Automatic reset 1 Manual reset Note Available only when the option is programmed CT Alarm action Range O Direct action relay energized in ala
15. 1619 ee to enable the soft start output power L Scale asia Thresh in engineering units H Scale Inhibit reset band extension A positive value increases the high limit of the 1520 Anti reset wind up over set point A negative value decreases the low limit of the Anti reset wind up under set Device status at instrument start up Range 0 t starts always in auto mode 1 It starts in the same way it was left prior to the power shut down If in manual mode the power output is set to 0 1521 2 t starts in the same way it was left prior to the power shut down If in manual mode the power output will be equal to the last value used left prior to the power shut down 3 It starts always in manual mode with power output set to 0 Output high limiter in TB1 7FFFh TB2 7FFFh TB1 7FFFh TB2 7FFFh 30 30 in of the FF FF 9 SS e O FO FO O B TI O TI O proportional LF LF band OC C TB1 2 LF LFE TB2 2 on te i J ee Es l 5 Page GB 42 51 TITLE RFS User Manual 170 IU0 RFS O0E DESCRIPTION Default Value A Condition for output safety value Range 0 No safety value Standard setting 1 Safety value applied when over range or under range condition is detected 2 Safety value applied when over range condition is detected 3 Safety value applied when under range condition is detected Output safety value in When the controller detects an ou
16. 800 cccscssescscssesssessesssecsessuessesssessessuessessvessessesssessesssessessteneeseees ALARM 3 OUTPUT 4 GROUP 4 000 css cestescesccascocassdetcededdsnesntdasisosdtanceattsiondedd Geated ssacoenddaneesttes DIGITAL OUTPUTS GROUP 2000 c sssssecsesssessecssessesssesscssvesecsevessessesssessesssessnsstessessessnestesseeeeee COMMUNICATION GROUP 2100 scssscssesssessesssecsesssecsesssessessvessessessuessesssessessssssessessseseeesteseeseees GENERAL SPECIFICATIONS csseccsesssessecosessecsesssecsesssecscssuessessssssessesssessesssessesssssessessseseessseneeseees MAINTENANCE ssccessssessecsesssecovsssecsesssecsecsuesscssvessecsssuecsesssessessussuessussuessessuessesstessesstsssesseesnecesen SF Romezcreonic TITLE RFS User Manual MOUNTING REQUIREMENTS select a mounting location having the following characteristics 1 it should be easy accessible 2 there is no vibrations or impact 3 there are no corrosive gases Sulphuric gas ammonia etc 4 there are no water or other fluid i e condense 5 the ambient temperature is in accordance with the operative temperature of the instrument from 0 to 50 C 6 the relative humidity is in accordance with the instrument specifications 20 to 85 non condensing The instrument can be mounted on OMEGA DIN rail in accordance with EN 50 022 35 x 7 5 mm or 35 x 15 mm regulations For outline dimensions refer to Fig 2 MOUNTING Fig 1 4
17. C im OC LF Alarm 2 hysteresis Range from 0 1 to 10 0 of the range selected with 1103 and 1104 parameters or 1 LSD Note Available only if AL2 is configured Out 3 function Range 0 Output not used for alarm 2 1 Output used as alarm 2 output Process alarm 2 Output used as alarm 2 output C Band alarm LF 3 Output used as alarm 2 output Deviation alarm Note Alarm 2 and CT alarm outputs are in OR condition Alarm 2 operating mode V Range 0 High alarm outside for band alarm C 1 Low alarm inside for band LF alarm Note Available only if AL2 is configured Alarm 2 reset type Range 0 Automatic reset C 1 Manual reset LF Note Available only if AL2 is configured TITLE RFS User Manual Modbus Address DESCRIPTION Alarm 2 action Range 0 Direct action relay energized in alarm condition 1 Reverse action relay de energized in alarm condition Note This configuration is the same of that at address 1209 Available only if AL2 is configured Alarm 2 stand by mask function Range 0 No standby function 1 Standby function Notes 1 Available only if AL2 is configured 2 Ifthe alarm is programmed as band or deviation alarm this function masks the alarm condition after a set point change or at the instrument start up until the process variable reaches the alarm threshold plus or minus hysteresis If the alarm is programmed as a process alarm this f
18. E COMMUNICATION GROUP 2100 W Modbus J DESCRIPTION I Address T E Serial link device address Default Value Note When you set a new value it will become operative after an instrument resets or removing the CPI If you made a request before the reset 2100 the device will reply the new value but it continue to use the old one Keep attention to the data set because at the instrument start up if incompatible data are found the serial line will be set with fixed parameters Address 255 Baud rate 19200 Byte format 8 bits without parity E C Baud rate for serial link Range O 600 Baud 1 1200 Baud 2 2400 Baud 3 4800 Baud am 4 9600 Baud 5 19200 Baud Note See note on Serial link device address parameter Byte format for serial link Range 0 8 bits even parity 1 8 bits odd parity 2102 2 8 bits without parity Note See note on Serial link device address parameter TITLE RFS User Manual GENERAL SPECIFICATIONS Case Polycarbonate dark grey color self extinguishing degree V2 according to UL 746C Protection IP20 Terminals 23 screw terminals screw M3 for cables from 0 25 to 2 5 mm2 or from AWG 22 to AWG 14 with connections diagram Dimensions DIN 43700 120 x 101 x 22 5 mm Weight of the RFS 140 g of the common I O unit 110 g Power supply 24 V AC DC 10 of the nominal value Power consumption 6 VA max 4 W Sampling time 250 ms for linea
19. a ramp with two different programmable rate of change ramp up and ramp down Slope value 1 100 eng unit min or step Set points limiter programmable Page GB 53 51 170 IU0 RFS O0E CONTROL ACTIONS Control action PID SMART Type One heating or cooling or two heating and cooling control outputs Proportional Band Pb Range from 1 0 to 100 0 of the input span for process with one control output from 1 5 to 100 0 of the input span for process with two control outputs When Pb 0 the control action becomes ON OFF Hysteresis for ON OFF control action from 0 1 to 10 0 of the input span Integral time Ti from 1s to 20 min or excluded Derivative time Td from 0s to 10 min If zero value is selected the derivative action is excluded Integral pre load from 0 to 100 for one control output from 100 cooling to 100 heating for two control outputs SMART enabling disabling Auto Manual mode selectable Manual Auto transfer bumpless method type OUTPUTS Control output updating time 250 ms when a linear input is selected 500 ms when a TC or RTD input is selected Action direct reverse programmable Output status indication four indicators OUT 1 2 3 and 4 are lit when the respective outputs are in ON condition Output level limiter For one control medium from 0 to 100 For two control mediums from 100 to 100 Cycle times For out 1 it is programmab
20. aaaaaaaaaaaaa aaaaaans nnnnaanananaannnnaananannanananaaaa PUNGTION CODE DIAGNOS TG asosan ninssdtas a s Sjannaaan sunn E FUNC HION CODE 15 MULTIPLE BINS WRITING sioonsababostusdl iusatkaltsi bgsbargalnsskatkbsri ERROR REPRE Y ARR DEVICE IDENTIFICATION GROUP 117 cccsssssessesseessecsvessecsvessesesssessessseseesssessesstessessessessessseeeeee OPERATIVE GROUP 900 ccccssssescsessseseccsvessessusssessesssecsesssessessvessessscssessesssessessssssessessnessesatenseseees DEVICE MANAGEMENT GROUP 1000 ssscsesseecsessessecsvessessvessessesssessesesessesstessesstessesetesseeeeee PROCESS VARIABLE INPUT GROUP 1100 ssscsscsessecssesssesseessessesssesersssessesssessesstesseseteseeeeeee CURRENT TRANSFORMER INPUT AND ALARM GROUP 1200 sc sssssseseessesseessessessesseseeeeees DIGITAL INPUT GROUP 1300 ss sesssesssecsesssessecsuecsessvesscssvessessvessessesssessesesessesssesstssesstsetesseeseee SETPOINT GROUP 1400 cccsescccscsssecsesssecsesssecsessvecscssvsssessssssessussuecsesssessessuessecsvessesssssesseesneceesen CONTROL OUTPUT 1 GROUP 1500 scsceccsessesssesssessessuessessvessessesssessesssessesesessessesssessessteneeseees SMART GROUP 1600 scsssccsesssessesssecsesssecsessuecscssvecsessusssessusssecsussuecsesssessessuessessuesacsssssersesaneceesen ALARM 1 OUTPUT 2 GROUP 1700 cccssssescsessesssessesssecsesssessesssessesssessesssessessesssessesstessessesseseees ALARM 2 OUTPUT 3 GROUP 1
21. action relay energized in alarm condition 1 Reverse action relay de energized in alarm condition Note Available only if AL3 is configured Alarm 3 stand by mask function Range 0 No standby function 1 Standby function Notes 1 Available only if ALS is configured 2 Ifthe alarm is programmed as band or deviation alarm this function masks the alarm condition after a set point change or at the instrument start up until the process variable reaches the alarm threshold plus or minus hysteresis If the alarm is programmed as a process alarm this function masks the alarm condition at instrument start up until process variable reaches the alarm threshold plus or minus hysteresis Page GB 49 51 170 IU0 RFS O0E E C Default Value GD ERO ELECT Page GB 50 51 TITLE RFS User Manual 170 IU0 RFS O0E DIGITAL OUTPUTS GROUP 2000 Modbus Address DESCRIPTION i Output 1 status Range 0 Output not energized 1 Output energized Output 2 status Range 0 Output not energized 1 Output energized OC OC Note LFILF Writing to this parameter is allowed in operative mode only if the output is not driven by an internal function like alarm 2002 Output 3 status OC OC Range and note see Status of output 2 LFILF 2003 Output 4 status OC OC Range and note see Status of output 2 LFILF on te i J ee El l R Page GB 51 51 TITLE RFS User Manual 170 IU0 RFS O0
22. ation capacity and cable requirements Availability of the not used I O by serial link All RFS I O may be read directly over the Modbus communication interface by the host supervisory system Additionally the communication host may write to RFS outputs that are not assigned as alarm or output functions This facility expands available PLC and host supervisory system I O simplifies machine troubleshooting and provides the possibility to perform remote diagnostics OFD function Output failure detection optional Using the CT input the output failure detection function monitors the current in the load driven by the output 1 Load and actuator protection is provided in the following way During the ON period of the output the instrument measures the current through the load and it generates an alarm condition if this current is lower than a pre programmed threshold 1206 A low current shows a partial or total break down of the load or actuator SSR During the OFF period of the output the instrument measures the leakage current through the load and it generates an alarm condition when this current is higher than a pre programmed threshold value 1205 A high leakage current shows a short circuit of the actuator TITLE RFS User Manual Soft start function This function allows to gradually warm up the machine during start up in order to delete thermal strength and to protect the raw material Pa
23. ce a high line resistance may cause measurement errors 4 The input impedance is equal to lt 5 Q for 20 mA input gt 1 MQ for 60 mV input TITLE RFS User Manual LOGIC INPUT Safety note 1 Do not run logic input wiring together with power cables 2 Use an external dry contact capable of switching 5 mA 7 5 V DC 3 The instrument needs 100 ms to recognize a contact status variation 4 The logic inputs is isolated by the measuring input NG 6 gt MM Fig 7 LOGIC INPUT WIRING This logic input can be programmed in order to perform the following functions a to switch from main set point to auxiliary set point and viceversa logic Input op set point open main SP close auxiliary SP SP2 b to hold the set point ramp execution logic input Ramp open RUN close HOLD CURRENT TRANSFORMER INPUT Current transformer Load Fig 8 CURRENT TRANSFORMER INPUT WIRING Note 1 The input impedance is equal to 12 Q 2 The maximum input current is equal to 50 mA rms 50 60 Hz Page GB 6 51 170 IU0 RFS O0E RELAY OUTPUTS OUT 1 Oo r Z O O O OUT 2 S gt O gt R o Z O OUT 3 al s E o m j O Fig 9 RELAY OUTPUTS WIRING The contact rating of the OUT 1 2 and 3 is 3A 250V AC on resistive load The number of operations is 3 x 10 at specified rating NOTES 1 To avoid electrical shock connect power line a
24. crc_16 error check field input parameters buffer string to calculate CRC length bytes number of the string This function returns the CRC value ee ad nae a ae TO ev Oe E EO ee ee eee x unsigned int crc_16 unsigned char buffer unsigned int length unsigned int i J temp_bit temp_int crc crc OXxFFFF for i OF 1 lt length ats temp_int unsigned char buffer t cre temp_int for y 0 J 5838 JTE I temp_bit cre amp 0x0001 Cre gt gt 13 if temp_bit crc 0xA001 j Feturn Cre Page GB 18 51 TITLE RFS User Manual 170 IU0 RFS O0E Function code 1 and 2 Bits reading These function codes are used by the master unit to request the value of a consecutive group of bits max 24 which are representing the status of the slave unit Request from master to slave Reply from slave to master Range Range Slave address 1 255 1 Slave address 1 255 Function code 01 02 1 Function code 01 02 Bit starting address high byte 1 Byte counter n 1 1 1 1 1 Number of bits high byte Error check CRC 16 low byte Number of bits low byte Error check CRC 16 high byte Error check CRC 16 low byte Error check CRC 16 high byte 1 QU T lt D HM O1 o1 Bit starting address low byte 1 Data it Hm o1 The Data field indicates the bits requested the bit with lower address is in the bit O of the first byte the next is in the bit 1 and
25. d words in the following format high byte of the first word low byte of the first word high byte of the second word and so on The Data field contains 8000h for not implemented addresses or for information not relevant in the actual device configuration Example Ask to slave at address 1 1h the value of 3 3h words starting from word 1100 44Ch Process variable input group Request from master to slave Range Slave address Function code Word starting address high byte Word starting address low byte Number of words high byte Number of words low byte Error check CRC 16 low byte Error check CRC 16 high byte The 6 bytes in Data field 00h 1Dh 00h 1Dh 00h 03h are 3 words whose meaning is Word 1100 value 29 1Dh Input variable without filter 29 C Word 1101 value 29 1Dh Filtered input variable 29 C Word 1102 value 3 3h Input type and range value for main input Tc J 100 1000 C Page GB 20 51 TITLE RFS User Manual 170 IU0 RFS O0E Function code 5 Single bit writing By using this command the master unit can change the state of one bit of the slave unit __ Command from master to slave Reply fromslavetomaster_ _ po Rane Byte Rane Byte Slave address 0 255 1 Slaveaddress 1 255 1 Function code 05 1 Function code 05 1 Bit address high byte 1 Bit address high byte 1 _Bit address low byte 1 Bit address low b
26. e remote master unit The serial interface of these instruments is based on High input impedance transceivers this solution allows you to connect up to 120 devices based on the same transceiver type with one remote master unit e ERO ELECTRONIC Page GB 8 51 TITLE RFS User Manual 170 IU0 RFS 00E TITLE RFS User Manual POWER LINE WIRING POWER LINE 24 V A C DC Fig 18 POWER LINE WIRING NOTES 1 Before connecting the instrument to the power line make sure that line voltage corresponds to the description on the identification label 2 Use copper conductors only 3 Don t run input wires together with power cables 4 The power supply input is NOT fuse protected Please provide it externally For one unit only the fuse must be rated as follows When fuse is damaged it is advisable to verify the power supply circuit so that it is necessary to send back the instrument to your supplier 5 The maximum power consumption is equal to 6 VA 4 W maximum Page GB 9 51 170 IU0 RFS O0E ACCESSORIES BUS cable It is possible to use a screw connector instead of the flat cable allowing the normal wiring of a single controller This flat cable allows the simultaneous connection of the power supply the serial interface the common alarm output out 4 and the common logic input of up to 12 instruments plus one Common 1 O unit or up to 13 instruments NOTE 1 the logic inputs of
27. e the main volatile SP instead of the main SP the EEPROM has a limited number of write actions allowed while the RAM has no limit Selected SP indicator 1400 Ramp hold OFF NOTE 2 Parameters 1413 1414 and 1415 allow you to increase or decrease a set point without Knowing the current set point value This solution allows you to modify of the same quantity the set point Main set point volatile set point or auxiliary set point respectively of different instruments at the same time Page GB 40 51 CONTROL OUTPUT 1 GROUP 1500 Modbus Address DESCRIPTION of TITLE RFS User Manual 170 IU0 RFS 00E 1500 OUT 1 value in 0 100 0 1501 OUT 2 value in 0 100 ry 32767 1502 Pid out value obs EJ Auto manual function Range OC OC 1903 0 Auto LF LFE 1 Manual Enable disable control output Range roua 0 Control enabled 1 Control disabled 10 1000 for H only 1505 Proportional band in of the input span 1 o iy ne 0 for ON OFF D Default Value OC LF Hysteresis for ON OFF control mode in of the input span OC ive Note Available only when Proportional band is set to ae LF zero Integral time in seconds 1507 Note 1 1200 The value 32767 7FFFh means that the integral action is excluded Integral pre load in of the output span he se 1508 Default value for Heating action 30 a po Default value for Heating cooling action 0 for H C TB
28. each instrument can be driven by its own connector terminals 6 and 7 without affecting the working of the other elements by the common logic input terminals 24 and 25 present on the common 1 O unit In this case all instruments connected with the BUS cable will detect the same logic input condition 2 The local logic input terminals 6 and 7 and the common logic input terminals 24 and 25 are in OR condition BUS cable Fig 14 BUS CABLE The connector used is a MOLEX Europe with 16 circuits Part number 39512163 pe 22 a 4 27 6 06 iP og It 239 pire 1020 me 142 1 00 6 00 330 1236 TITLE RFS User Manual Fig 15 CONNECTOR 8 x 2 FOR BUS CABLE COMMON I O UNIT This unit can perform 3 different functions 1 Itis the relay output of all the common alarm connected by the BUS cable 2 It performs the connection of the common logic input of all the units connected by the BUS cable 3 It is the natural connection of the power supply and of the serial link for all the units connected by the BUS cable J2 oo EEHEHE y Fig 16 COMMON I O UNIT TERMINAL BLOCK For serial interface and power supply connection see fig 12 and 13 and relative notes Common logic input Safety note 1 Do not run logic input wiring together with power cables 2 Use an external dry contact capable of switching 100 mA 7 5 V DC minimum 3 The i
29. form the process control and the alarms functions During configuration it is possible to read and write all the parameters of the instrument The instrument configuration can be made by RS 485 or by a specific tool named CPI NOTE the standard RS 485 and the CPI are mutually exclusive and the CPI have the priority with respect of the RS 485 The CPI is shipped with a special software aimed to made the configuration procedure very easy The CPI and the RFS configuration program are described in a specific manual In the chapter RFS Modbus protocol you will find all the information related with the various parameters when it can be write or read limits and so on The operative mode During operative mode the instrument performs the process control and the alarms management and all the other special functions SMART soft start etc During Operative mode it is possible to read and write a subset of parameters SPECIAL FUNCTIONS DURING OPERATIVE MODE Follows a list of the special functions perform by this instrument It aims to help you during configuration and operative mode in order to obtain the best performance from this instrument NOTE in the following descriptions two square brackets are used to define the Modbus address of a parameter Page GB 12 51 170 IU0 RFS O0E Indicators 1 Lit when OUT 1 is ON 2 Lit when OUT 2 is ON 3 Lit when OUT 3 is ON 4 Lit when OUT 4 is ON PV FAIL Lit when a fail
30. found the command will be aborted and the slave will answer with an error Example Send to slave at address 2 2h the following set of 2 bits Bit 2002 7D2h status O bit 0 Status of output 3 output not energized Bit 2003 7D3h status 1 bit 1 Status of output 4 output energized Filler 0 bit 2 Filler 0 bit 3 Filler 0 bit 4 Filler 0 bit 5 Filler 0 bit 6 Filler 0 bit 7 NOTE 1 byte with 2 bits and 6 filler bits must be sent Page GB 24 51 TITLE RFS User Manual 170 IU0 RFS O0E Function code 16 Multiple words writing This function code is used by the master unit to write a consecutive group of words The master unit can change a maximum of 20 words at a time Command from master to slave Range Byte Slave address 0 255 Function code 16 Word starting address high byte Word starting address low byte Number of words high byte Number of words low byte Byte counter n Data Error check CRC 16 low byte Error check CRC 16 high byte Reply from slave to master Range Slave address 1 255 Function code 16 Word starting address high byte Word starting address low byte Number of words high byte Number of words low byte Error check CRC 16 low byte Error check CRC 16 high byte h h h h h h uh nk To use the address 0 see note 1 Broadcast address in the Notes section The data imposed for read only w
31. ge GB 14 51 170 IU0 RFS O0E The energy applied is restricted by 1514 fora programmable time 1515 Page GB 15 51 TITLE RFS User Manual 170 IU0 RFS O0E GENERAL NOTES ON THE MODBUS RTU PROTOCOL This half duplex protocol accepts one master and one or more slaves The physical interface should be of the RS 485 type A single multidrop link can take up to 120 devices having the same High input impedance as the transceiver used The computer must be programmed to serve as a master controlling which slave has access to the link All other slaves are in waiting state Each slave has a unique address ranging from 1 to 254 Address 0 is a broadcast one When the master sends a message with address 0 all slaves receive it and no one replies NOTE The numerical value present in this text are expressed as binary value if they are followed by b decimal value if they are not followed by any letter hexadecimal value if they are followed by h TRANSMISSION FORMAT The protocol uses the RTU Remote terminal unit mode of transmission RTU is a binary method with byte format composed as follows 1 start bit 8 data bit 1 parity bit optional 1 stop bit The communication speed is selectable among 600 1200 2400 4800 9600 and 19200 baud NOTE If CPI Configuration Port Interface is used the transmission format is fixed 19200 8 bits No parity and the address is fixed at 255 The broadcast address 0 i
32. ink will change immediately but the new values will become operative only when the instrument comes back to the operative mode Manual reset of the alarm conditions Range 0 No operation 1 Alarm Reset Data Management in Operative Mode Range 0 Only valid data are transmitted 1 All the data are transmitted on te i J ee El l R Page GB 32 51 TITLE RFS User Manual 170 IU0 RFS O0E PROCESS VARIABLE INPUT GROUP 1100 W Modb R Default veda DESCRIPTION 1 D Address Value T E Measured value without filter in engineering units Notes When an measure error is detected the Data field contains one of these error codes 1100 30004 7534h Under range 30005 7535h Over range or input open 30014 753Eh Error on reference junction temperature lt 25 C or gt 75 C 30050 7562h Error on internal auto zero Filtered measured value in engineering units 1101 Note see Measured value without filter Input type and range value for main input 14 Linear 15 reserved 16 reserved 17 reserved 18 reserved 19 Tc 20 Tc 150 1830 F 21 Tc 150 2500 F 22 TC 150 2550 F 23s TC 24 Tc 25 RTD Pt100 26 RTD Pt100 Range 0 Tc L 0 400 0 C 1 Te L 0 900 C 2 Tc J 100 0 400 0 C 3 Te J 100 1000 C 4 Tc K 100 0 400 0 C 5 Tc K 100 1370 C 6 Tc N 100 1400 C 7 Tc R 8 Tc S 9 RTD Pt10
33. input resistance is less than 12 Q Tempe Eng rature Type STD aes Range drift PPM O O O O RTD poo PN s70 TITLE RFS User Manual C LINEAR INPUTS Read out programmable from 2000 to 4000 Decimal point programmable in any position Burn out the instrument shows the burn out condition as an underrange condition for 4 20 mA 0 60 mV and 12 60 mV input types Input Temperature Sensor Type impedance drift ppm C of full span Current 20 mA 1o 4 20 mA 060mV gt IMQ Volt 300 12 60 mV gt 1MQ om D LOGIC INPUT The instrument is equipped with one programmable input from contact voltage free NOTES 1 Use an external dry contact capable of switching 5 mA 7 5 V DC 2 The instrument needs 100 ms to recognize a contact status variation 3 The logic input is isolated by the measuring input C CURRENT TRANSFORMER INPUT Input current 50 mA rms 50 60 Hz Read out selectable between 10 and 100 A Resolution 0 1 A for 20 A range 1 A for all the other ranges Active period for relay output NO or NC programmable for SSR drive output logic level 1 or 0 programmable Minimum time duration of the active period 50 ms SET POINTS This instrument allows to use 2 set points main SP and auxiliary SP SP2 Set point transfer The transfer between one set point to another or between two different set point values may be realized by a step transfer or by
34. king set point in engineering units fof fai Same as address 1402 oog Main set point in engineering units kok e EER Same as address 1403 SPH LEILF 900 Auxiliary set point in engineering units ae CE Same as address 1405 SPH LF LF 949 Target set point in engineering units fof fai Same as address 1401 911 Main volatile set point in engineering units Sa lofofeyy Same as address 1404 SP H oe al i i k ceo l Mw Page GB 31 51 TITLE RFS User Manual 170 IU0 RFS O0E Modbus Address 1000 1001 1002 1003 1004 DEVICE MANAGEMENT GROUP 1000 DESCRIPTION Device mode Range 0 Operative mode 1 Configuration mode 2 Calibration mode 3 reserved Note When operative mode is set a Parameter Check Operation is automatically performed If an error is found the device answers with error code 10 and doesnt enable the new status Otherwise the device stops any other address test answers immediately resets and restarts in operative mode The set in Calibration mode is allowed only from configuration mode Execute the PCO Parameter Check Operation It returns O if no error was found otherwise it returns the Modbus address of the first wrong parameter Load default parameter values Range 0 No operation 1 Load default European table TB1 2 Load default American table TB2 Note Using this command the parameters related with the serial l
35. le from 1 to 200 s For out 2 it is programmable from 1 to 200 s Relative cooling gain programmable from 0 20 to 1 00 Overlap dead band programmable from 20 to 50 of the proportional band TITLE RFS User Manual OUTPUT 1 Function programmable as heating or cooling output Type a Relay output with SPST contact contact rating 3A 250 V AC on resistive load b Logic voltage for SSR drive Logic status 1 24 V 20 1 mA 14 V 20 20 mA Logic status 0 lt 0 5 V OUTPUT 2 Function programmable as contro output cooling Alarm 1 output Type a Relay output with SPST contact contact rating 3A 250 V AC on resistive load b Logic voltage for SSR drive Logic status 1 24 V 20 1 mA 14 V 20 20 mA Logic status 0 lt 0 5 V OUTPUT 3 Function Alarm 2 output Type relay with SPDT contact Contact rated 3 A at 250 V AC on resistive load OUTPUT 4 Output type open collector optically isolated with respect to the other circuits Rating max 10 mA at 48 V ALARMS Actions Direct or reverse acting Alarm functions each alarm can be configured as process alarm band alarm or deviation alarm Alarm reset automatic or manual reset programmable on each alarm Stand by mask alarm each alarm can be configured with or without stand by mask function This function allows to delete false indication at instrument start up and or after a set point change Process
36. nstrument needs 100 ms to recognize a contact status variation 4 The logic input is isolated by the measuring input Fig 17 COMMON LOGIC INPUT WIRING Page GB 10 51 170 IU0 RFS O0E DIN DIN DIN DIN COMMON NMI NIZ i 1 O UNIT a OR r 6 l 6 6 74 Een ial ae 2 7 1 N F 25 Te id EN 1 H F l _RES__ _RES__ RES _RES__ L DIN DIN DIN DN COMMON Sof Mia MAI NZ I O UNIT I INI AN It ZNI AN Jas p16 a 16 6 bl 15 Pl l I N L ia ae 8 23 an J H l i J 2 r TT RFS RFS RFS RFS Fig 18 B Common logic input CLOSE NOTE As shown in Fig 18 the logic input of a group of RFS can be driven singularly using terminals 6 and 7 of the specific instrument or collectively using terminals 24 and 25 of the Common 1 O unit This logic input can be programmed in order to perform the following functions a to switch from main set point to auxiliary set point and viceversa logic input selected set point open main SP close auxiliary SP SP2 b to hold the set point ramp execution logic input Ramp open RUN close HOLD TITLE RFS User Manual Common alarm output NC C Ll Fig 19 COMMON ALARM OUTPUT WIRING Out 4 From bus connector OFF ON Sig eX l u Nane spe tiicom hs N O COMMON I O UNIT Fig 20 A Relay de energized beacon ON lit OFF ON a ae I oly
37. o N C Out 4 V From bus connector COMMON I O UNIT Fig 20 B Relay energized beacon OFF lit The contact rating of this output is 8A 250V AC on resistive load The number of operations is 3 x 10 at specified rating NOTE Don t run input wires together with power cables The relay contacts are protected by varistor against inductive load with inductive component up to 0 5 A CONNECTOR KIT The unit can be supplied with or without the connector kit The quantity of each connector is related with the specific options selected Fig 21 2 wires connector Page GB 11 51 170 IU0 RFS O0E Phoenix model MSTB 2 5 2 ST 5 08 Fig 22 3 wires connector Phoenix model MSTB 2 5 3 ST 5 08 Sed Fig 23 4 wires connector NOTE this connector is a gold plated connector and it is shipped with the instrument and it is not included in the connector kit Phoenix model MSTB 2 5 4 ST 5 08 Fig 24 5 wires connector Phoenix model MSTB 2 5 5 ST 5 08 Fig 25 8 wires connector Phoenix model MSTB 2 5 8 ST 5 08 TITLE RFS User Manual FUNCTIONALITY Operating modes description The device foresees three different operating modes named Calibration mode Configuration mode Operative mode The calibration mode This operating mode is detailed in a specific manual named RFS Calibration manual The configuration mode During configuration mode the instrument does not per
38. ords will be ignored The command will be processed starting from the first word and it will be executed or not executed depending on the actual device status At the first error found the command will be aborted and the slave will answer with an error The 8000h value present in the data field should be considered as a don t care value this is the value present in the device at this address will not be modified Example Set words 1505 5E1h 1506 5E2h 1507 5ESh of slave at address 10 Ah with 40 28h don t care 8000h and 300 12Ch values Proportional band Hysteresis and Integral time in Control group Reply from slave to master Range Slave address Function code Word starting address high byte Word starting address low byte Number of words high byte Number of words low byte Error check CRC 16 low byte Error check CRC 16 high byte oe al i i k ceo l Mw TITLE RFS User Manual NOTES 1 Broadcast address When using the writing codes 5 6 15 and 16 the slave address 0 is permitted in this case all the slaves connected accept the command but do not give any reply 2 Words format Every time the information transfer is performed by using 2 bytes 1 word of 16 bits the first byte transmitted is the most significant one For the negative numbers the two complement format is used 3 Reply time The slave will start to send a reply from 2 m
39. r inputs 500 ms for TC and RTD inputs Accuracy 0 2 f s v 1 digit 25 C ambient temperature Common mode rejection gt 120 dB 50 60 Hz Normal mode rejection gt 60 dB 50 60 Hz Electromagnetic compatibility and safety requirements This instrument is marked CE Therefore it is conforming to council directives 89 336 EEC and to council directives 73 23 EEC and 93 68 EEC reference harmonized standard EN 61010 1 Installation category over voltage category CAT Il 50V Pollution degree 2 Operative temperature from 0 to 50 C 32 to 122 F Storage temperature 20 to 70 C 4 to 158 F Humidity from 20 to 85 RH non condensing Operating altitude up to 2000mt INPUTS A THERMOCOUPLE Type L J K N R S T C F selectable External resistance 100 max Burn out It is shown as an overrange standard or an underrange condition selectable by cut and short TC sensor current 150 nA Cold junction automatic compensation from 0 to 50 Cold junction accuracy 0 1 C C Input impedance gt 1 MQ Page GB 52 51 170 IU0 RFS O0E Tempe rature drift 400 0 1 IEC 584 1 B RTD Resistance Temperature Detector Type Pt 100 3 wires connection Line resistance automatic compensation up to 20 Q wire with not measurable error Engineering units C or F programmable RTD sensor current 130 uA Burnout up scale NOTE a special test is provided to signal OVERRANGE when
40. re not updated 8 0 7 Status of Out 4 6 Status of Out 3 5 Status of Out 2 4 Status of Out 1 2 Auto Manual D D D D D D D D D 0 SMART Enable or Reserved 0 Out not energized 1 Out energized 0 Out not energized 1 Out energized 0 Out not energized 1 Out energized 0 Out not energized 1 Out energized 3 Digital input status 0 Contact open 1 Contact closed O0 Auto 1 Manual 1 control output Enabled or disabled 0 Enabled 1 Disabled Disable 0 Disabled 1 Enabled Page GB 30 51 TITLE RFS User Manual 170 IU0 RFS O0E W Modbus H Default Address DESCRIPTION I D Value T E E C Filtered Input variable in engineering units Notes When a measure error is detected the Data field contains one of these error codes 905 30004 7534h Under range 30005 7535h Over range or open input 30014 753Eh Error on reference junction temperature lt 25 C or gt 75 C 30050 7562h Error on internal auto zero Same as address 1101 Input variable without filter in engineering units Notes When a measure error is detected the Data field contains one of these error codes 30004 7534h Under range 30005 7535h Over range or open input 30014 753Eh Error on reference junction temperature lt 25 C or gt 75 C 30050 7562h Error on internal auto zero Same as address 1100 997 Wor
41. rm condition 1 Reverse action relay de energized in alarm condition Note Available only when the option is programmed This configuration is the same made by address 1806 CT range in Ampere It is the nominal primary current of the current OC 10 100 transformer used LF Note Available only when the option is programmed Number of decimal figures for the CT measurement The resolution of the CT measurement is as follow 0 1 A for CT range lower than 20 A OC 1 A for CT range higher than 20 A LF So that When 1210 parameter is lower than 20 A the 1211 parameter will be equal to 1 When 1210 parameter is higher than 20 A the 1211 parameter will be equal to 0 Note CT alarm and Alarm 2 are in OR condition driving the output 3 mos Page GB 36 51 TITLE RFS User Manual 170 IU0 RFS O0E W Default 24 Value T E E C Digital input status Range OC 0 Input not active contact open LF 1 Input active contact closed DIGITAL INPUT GROUP 1300 Modbus laos DESCRIPTION Digital input function Range 0 Option not used 1 Digital input used for main set point auxiliary set point selection Input active means Auxiliary set point 2 Digital input used to hold the set point ramp execution Input active means ramp hold Page GB 37 51 TITLE RFS User Manual 170 IU0 RFS O0E SETPOINT GROUP 1400 W Modbus R Default DESCRIPTION l Address T vue
42. s to 700 ms after the end of the request detected by counting the received bytes 4 Decimal digits The decimal point that may be present in the value is ignored Example The value 204 6 is transmitted as 2046 O7FEh The value 12 50 is transmitted as 1250 FB1Eh The number of decimal digits if significant is stated for each parameter see the DEC column in the parameters tables some parameters have a variable number of decimal digits according to the configuration as described below PV number of decimal digits apply on process variable 1105 CT number of decimal digits apply on current transformer read out 1211 OP number of decimal digits apply on output power 1524 5 Local remote status In this controller unlike other Ero Electronic devices the Local remote status setting isn t required This means that the master unit can modify any parameters without set any local remote status bit moreover no 3 seconds timeout will be applied Page GB 25 51 170 IU0 RFS O0E 6 Operative mode Operative mode indicates the normal functioning status of the device controller In operative mode the master can read the whole parameters the device returns 8000h for the meaningless one for example the threshold of a not configured alarm The write operation is allowed only fora restricted number of parameters for example isn t permitted to change the input configuration In operative mode
43. s configured Alarm 1 reset type Range 0 Automatic reset 1 Manual reset Note OC V LF 1 OC C LPE OC C LFILF OC C LFEILF Available only if AL1 is configured Default Value TITLE RFS User Manual Modbus Address DESCRIPTION Alarm 1 action Range 0 Direct action relay energized in alarm condition 1 Reverse action relay de energized in alarm condition Note Available only if AL1 is configured Alarm 1 stand by mask function Range 0 No standby function 1 Standby function Notes 1 Available only if AL1 is configured 2 Ifthe alarm is programmed as band or deviation alarm this function masks the alarm condition after a set point change or at the instrument start up until the process variable reaches the alarm threshold plus or minus hysteresis If the alarm is programmed as a process alarm this function masks the alarm condition at instrument start up until process variable reaches the alarm threshold plus or minus hysteresis Page GB 45 51 170 IU0 RFS O0E E C Default Value Page GB 46 51 TITLE RFS User Manual 170 IU0 RFS O0E ALARM 2 OUTPUT 3 GROUP 1800 Default Value DESCRIPTION oO mo Alarm 2 status Range 0 No alarm 1 Alarm Note Available only if AL2 is configured Alarm 2 threshold for process alarm 0 500 for band alarm 500 500 for deviation alarm Note Available only if AL2 is configured O
44. s not admitted COMMUNICATION PROCEDURE The communication can be initiated only by the master unit the slave units can transmit only after a query has been received from the master The general format for the transmission from master to slave is the following Slave address The slave detects the start of a query frame when the delay time between two characters is greater than 3 5 T U Time Unit Time necessary to transmit one character Page GB 16 51 TITLE RFS User Manual 170 IU0 RFS O0E ERROR CHECK CRC 16 Cyclical Redundancy Check The CRC 16 value is calculated by the transmitting device This value is appended to the message The receiving device recalculates a CRC 16 and compares the calculated value to the received value The two values must be equal The CRC 16 is started by first pre loading a 16 bit register to all 1 s Then a process begins of applying successive the bytes of the message to the current contents of the register Only the eight bits of data in each character are used for generating the CRC 16 Start and stop bits and the parity bit if one is used do not apply to the CRC 16 During generation of the CRC 16 each byte is exclusive ORed with the register contents Then the result is shifted to the right with a zero filled into the most significant bit MSB position If the LSB was a 1 the register is then exclusive ORed with a preset fixed value If the LSB was a 0 no exclusive OR takes place
45. so on The eventual don t care bits necessary to complete the last byte are equal to 0 Example Ask to slave at address 3 Sh the status of 4 4h bits starting from bit 2000 7DOh Digital Outputs group Request from master to slave Range Slave address Function code Bit starting address high byte Bit starting address low byte Number of bits high byte Number of bits low byte Error check CRC 16 low byte Error check CRC 16 high byte The byte in Data field QAnh 000001010b means Bit 2000 status 0 Status of output 1 output not energized Bit 2001 status 1 Status of output 2 output energized Bit 2002 status 0 Status of output 3 output not energized Bit 2003 status 1 Status of output 4 output energized Don t care 0 Don t care 0 Don t care 0 Don t care 0 Page GB 19 51 TITLE RFS User Manual 170 IU0 RFS O0E Function code 3 and 4 Words reading These function codes are used by the master unit to read a consecutive group of words 16 bit which contain the value of the variable of the slave unit The master can require a maximum of 20 words at a time Reply from slave to master Range Slave address 1 255 Function code 03 04 Byte counter n Data Error check CRC 16 low byte QU T lt D Number of word low byte Error check CRC 16 high byte Error check CRC 16 low byte Error check CRC 16 high byte D The Data field contains the requeste
46. t range condition for H only Note Available only if used 100 100 for H C Number of decimal figures of parameters with DEC attribute set in OP NOTE the parameters 1514 and 1515 allow to set the soft start function At power up the instrument limits the power output using 1514 for a programmed time set by 1515 This function allows to gradually warm up the machine during start up in order to delete thermal strength and to protect the raw material Page GB 43 51 TITLE RFS User Manual 170 IU0 RFS O0E Default D Value E C SMART GROUP 1600 DESCRIPTION Tune status Range 0 No tune 1 Tune Adaptive status Range 0 No adaptive Smart enable disable Range 0 Disable 1 Enable Note Reading this bit is logical or between Tune and Adaptive status OC OC LF LFE OC LF OC LF o Relative cooling gain calculated by the smart algorithm Range 0 Smart does not calculate R C G 1 Smart calculates R C G Note Available only for HC control Type of cooling media Range 0 Air is used as cooling media 1 Oil is used as cooling media 2 Direct water is used as cooling media Changing 1604 the instrument forces the cycle time and relative cooling gain parameter to the default value related with the chosen cooling media When 1604 Alr Cy2 10s and rC 1 00 1604 OIL Cy2 4sandrC 0 80 1604 H20 Cy2 2 and rC 0 40 Note Available onl
47. t the end of the wiring procedure 2 For power connections use No 16 AWG or larger wires rated for at last 75 C 3 Use copper conductors only 4 Don t run input wires together with power cables All relay contacts are protected by varistor against inductive load with inductive component up to 0 5 A The following recommendations avoid serious problems which may occur when using relay output for driving inductive loads TITLE RFS User Manual INDUCTIVE LOADS High voltage transients may occur switching inductive loads Through the internal contacts these transients may introduce disturbances which can affect the performance of the instrument For all the outputs the internal protection varistor assures a correct protection up to 0 5 A of inductive component The same problem may occur when a switch is used in series with the internal contacts as shown in Fig 10 2 power ch C R line load Fig 10 EXTERNAL SWITCH IN SERIES WITH THE INTERNAL CONTACT In this case it is recommended to install an additional RC network across the external contact as show in Fig 10 The value of capacitor C and resistor R are shown in the following table LOAD C R P OPERATING MA uF Q W VOLTAGE lt 40 mA 10 047 100 1 2 260 V AC lt 150 mA 0 1 22 2 260 V AC lt 0 5 A 0 33 47 2 260 V AC The cable involved in relay output wiring must be as far away as possible from input or comm
48. ual mode the power output OUT1 OUT2 is set to 0 SMART function It is used to automatically optimize the control action When the SMART function is enabled it is possible to read but not to write the control parameters Pb Ti Td TITLE RFS User Manual Disabling the SMART function the instrument maintains the actual set of control parameters and it enables parameter modification NOTES When ON OFF control is programmed Pb 0 the SMART function is disabled Synchronous pre heating This function eliminates differential heating during machine start up due to differing heating rates of individual heaters This function operate as follows At instrument start up all controllers use the first measured value as initial set point and than they start a ramp from this set point to the final set point previously programmed All common alarms are set as band alarms and are connected with the common logic input In this way if the measure of one loop goes out of the tracking band the common alarm will close the common logic input and the ramp execution of all the loops will be hold The ramp execution will restart when all measures come back in the tracking band In order to obtain this function set the instruments as follows 1 The alarm 3 is a band alarm 1903 2 1904 0 1905 0 1906 0 and 1907 0 2 The operative set point at start up must be set equal to aligned to the meas
49. unction masks the alarm condition at instrument start up until process variable reaches the alarm threshold plus or minus hysteresis Page GB 47 51 170 IU0 RFS O0E E C Default Value Page GB 48 51 TITLE RFS User Manual 170 IU0 RFS O0E ALARM 3 OUTPUT 4 GROUP 1900 DESCRIPTION Om oOo Alarm 3 status Range 0 No alarm 1 Alarm Note Available only if AL3 is configured Alarm 3 threshold for Process alarm 0 500 for Band alarm 500 500 for deviation alarm OC Note LF Available only if AL3 is configured OC im OC LF Alarm 3 hysteresis Range from 0 1 to 10 0 of the range selected with 1103 and 1104 parameters or 1 LSD Note Available only if AL3 is configured Out 4 function Physically available only through bus connector J2 Range 0 Output not used for alarm 3 1 Output used as alarm 3 output Process alarm 2 Output used as alarm 3 output Band alarm 3 Output used as alarm 3 output Deviation alarm Alarm 3 operating mode Range 0 High alarm outside for band alarm 1 Low alarm inside for band alarm Note OC V LF 1 OC C LFILF OC C LFEILF Available only if AL3 is configured Alarm 3 reset type Range 0 Automatic reset 1 Manual reset Note OC C LFEILF Available only if AL3 is configured Default Value TITLE RFS User Manual Modbus Address DESCRIPTION Alarm 3 action Range 0 Direct
50. unication cables VOLTAGE OUTPUTS FOR SSR DRIVE SOLID STATE RELAY Fig 11 SSR DRIVE OUTPUT WIRING It is a time proportioning output Logic level 0 Vout lt 0 5 V DC Logic level 1 14 V 20 20 mA 24 V 20 1 MA Page GB 7 51 170 1U0 RFS 00E Maximum current 20 mA NOTE This output is not isolated A double or reinforced isolation between instrument output and power supply must be assured by the external solid state relay SERIAL INTERFACE RS 485 interface allows you to connect slave AJA 2 B B E C C Common a M devices with one remote master unit Fig 12 RS 485 WIRING NOTES 1 The RFS is equipped with an RS 485 driver with an input impedance fore time higher than a standard one For this reason it is possible to connect 120 RFS units to the same master instead of 30 1 The cable length must not exceed 1 5 km at 19200 BAUD 2 This serial interface is isolated 3 The following report describes the signal sense of the voltage appearing across the interconnection cable as defined by EIA for RS 485 a The A terminal of the generator shall be negative with respect to the B terminal for a binary 1 MARK or OFF state b The A terminal of the generator shall be positive with respect to the B terminal for a binary 0 SPACE or ON 4 The EIA standard establishes that by RS 485 interface it is possible to connect up to 30 devices with on
51. up the reset variable is reported as 0000h a set communication interface with the one is reported as 0001h parameter values previously Writing boolean variables as words send programmed 0000h to reset the variable send a value different from 0000h and 8000h to set the variable Ga monn Page GB 27 51 TITLE RFS User Manual 170 IU0 RFS O0E ERROR REPLY If the error check is wrong or the function code is not implemented or a buffer overflow has been received the slave does not send any reply to the master If other errors are detected in the request or command frame or the slave cannot reply with the requested values or it cannot accept the requested sets because it is in error condition the slave replies by forcing at 1 the bit 7 of the received Function code byte followed by an error code Error reply from slave to master RANGE BYTE Slave address 1 Function code 80h 1 Error code 1 Error check CRC 16 low byte 1 Error check CRC 16 high byte 1 List of error codes ERROR CODE DESCRIPTION 2 Illegal data address 3 Illegal data value 9 Illegal number of data required 10 The parameter indicated cannot be modified or command cannot be executed Error 2 is issued only when the whole addresses involved in a read or write operation are not implemented on the device Page GB 28 51 TITLE RFS User Manual 170 IU0 RFS O0E Modbus Address 120 DEVICE IDENTIFICATION GROUP 117
52. ure is detected on the measuring input COM Lit during transmission SYS Flashing during operative mode Lit during configuration and calibration mode D IN lit when the logic input is closed Enable disable the control output When the instrument is in operative mode it is possible to disable the control outputs 1504 In this open loop mode the device will function as an indicator the instrument will perform the measure but all control outputs will be forced to 0 When the control outputs are disabled the alarms are also in no alarm condition If a power down occurs when the control output is disabled at instrument power up the control output will be automatically disabled When the control is restored the instrument operates as in presence of a power up and the alarm mask function if configured will be activated MANUAL function The MANUAL mode function 1503 allows to set directly the power output of the instrument The transfer from AUTO to MANUAL and viceversa is bumpless this function is not provided if integral action is excluded If transfer from AUTO to MANUAL is performed during the first part of SMART algorithm TUNE when returning in AUTO the device will be forced automatically in the second part of the SMART algorithm ADAPTIVE At power up the device will be in the AUTO mode or as it was left prior to power shut down depending on 1521 configuration selection Note When start up occurs in Man
53. ured value 1410 1 3 The logic input is used for ramp hold 1301 2 4 The rate of change for positive set point variation 1408 and the rate of change for negative set point variation 1409 must be set between 1 and 100 digit per minute according with the desired rate of change 5 The common alarm output is connected with the common logic input Sequential address Modbus for frequently accessed parameter To maximize the data transfer rates between the RFS and the host supervisory system important operating parameters are grouped with sequential address see operative group 900 To further increase data transfer efficiency all digital status information are transferred as one data word The system enables the RFS to communicate relevant parameter information with a single data request not a series of separate address operations Page GB 13 51 170 IU0 RFS O0E Energy management at start up When you turn ON a multi loops machine where all loops have the soft start function at power up the ON and OFF period of the control output of all loops will be more or less synchronous This fact produces high current peaks These instruments will use their Modbus address all addresses are different in order to displace the ON and OFF period of the control output s This facility significantly reduces maximum machine start up current requirements and offers potential savings in electrical install
54. y for HC control 1605 Max value of proportional band calculated by the Min yd smart algorithm 1000 Min value of proportional band calculated by the 10 OC Max value LF LF smart algorithm DOE 15 OC Max value L F V F Note Not available for HC control 1608 Min value of integral time calculated by the 1 12 OC C smart algorithm in seconds LFILF r TB1 300 1 TB2 300 H Min value of proportional band calculated by the smart algorithm Note Available only for HC control TB1 TB2 on Page GB 44 51 TITLE RFS User Manual 170 IU0 RFS O0E ALARM 1 OUTPUT 2 GROUP 1700 DESCRIPTION Om oOo Alarm 1 status Range 0 No alarm 1 Alarm Note Available only if AL1 is configured Alarm 1 threshold for Process alarm 0 500 Note for Band alarm Available only if AL1 is configured 500 500 OC LF OC im OC LF for deviation alarm Alarm 1 hysteresis Range from 0 1 to 10 0 of the range selected with 1103 and 1104 parameters or 1 LSD Note Available only if AL1 is configured Out 2 function Range 0 Output not used 1 Output used as alarm 1 output Process alarm 2 Output used as alarm 1 output Band alarm 3 Output used as alarm 1 output Deviation alarm 4 Output used as cooling output Alarm 1 operating mode Range 0 High alarm outside for band alarm 1 Low alarm inside for band alarm Note Available only if AL1 i
55. yte 1 Data o 2 ata 2 Error check CRC 16 low byte 1 Error check CRC 16 low byte 1 Error check CRC 16 high byte 1 Error check CRC 16 high byte 1 To use the address 0 see note 1 Broadcast address in the Notes section Data field Oh to reset the bit FFOOh to set the bit Example Set bit 1003 SEBh of slave at address 35 23h Manual reset of an alarm condition in Device management group Bit address low byte h Error check CRC 16 low byte Error check CRC 16 high byte Page GB 21 51 TITLE RFS User Manual 170 IU0 RFS O0E Function code 6 Single word writing By using this command the master unit can change the value of one word 16 bit of the slave unit Command from master to slave Range Slave address 0 255 Function code 06 Word address high byte Word address low byte Reply from slave to master Range te Slave address 1 255 Function code 06 Word address high byte Word address low byte Data Error check CRC 16 low byte Error check CRC 16 high byte Data Error check CRC 16 low byte Error check CRC 16 high byte To use the address 0 see note 1 Broadcast address in the Notes section The 8000h value present in the Data field should be considered as a don t care value that is the value present in the device at this address will not be modified Example Set word 1403 57Bh
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