CH SERIES - CoffeeSnobs
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1. ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Device master section Device Function Register Register value CRC address code address 02 06 00 01 00 OF 98 3D The reply tell us that register 1 Set Point has received the value of 15 15 C 16 6 Modbus error codes Commonly the errors that appear during the device access and programming operations are related to the data not valid in the section When a device detects an error of this kind the reply to the master consists of the address of the device the code of the function the error code and the CRC To indicate that the reply is an error notification the bit with greatest weight in the function code is activated to 1 Error code Name Description 01 ILLEGAL FUNCTION Function not valid 02 ILLEGAL DATA Data address field not valid ADDRESS 03 ILLEGAL DATA Data field not valid VALUE 16 7 Communication times From master request to slave answer it s possible set a delay with a range from 0 to 2000 milliseconds this is possible by fM 1 parameter 17 Registers table All the data shared by a module communicating with the Modbus protocol are mapped into tables in which each datum is given an address Each datum can be of two types COIL composed of a single bit in the CH series implementation these bits are logical states REGISTER composed of 2 bytes 16 bit the varia2. 4 V A Y KO cHt02 Push the key lt m Push the key V for 4 pike n 4 n IH ee c U e U Oat OouT1OseR OAL1 Oat2 eo 4 V K co AN For safety any time the user switch from Automatic to Manual regulation automaticly the regulation output will be set to 0 OFF Next by UP DOWN keys will be possible set the desired vaule the output actuation will be immediate without the SET key confirmation Note It s not possible the AUTO MAN switch by M A key if the same function is enabled on digital input function Parameter SLA 0010 on men level 3 Pag 25 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 10 Setting parameter Men Level 1 Setting SP SP2 and the manual output value Level 2 Level 3 gt Level 4 Push GE i For 3 seconds With LCU 1000 push ED E to enter on level 3 a lt UP WA ide i Ee Pag 26 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER gt ee ve gt Level 4 Set fod 0001 and push GED to enter on Level 4 Pag 27 Level 5 Level 6 Setl od 001
3. 44 0x2C Reserved 45 0x2D Cold junction temperature Read only 17 1 Coils table Modbus address Parameter name Range Access type ol 0x00 Over range sensor 0 OK 1 Overrange Read only 1 0x01 Under range sensor 0 OK 1 Underange Read only 2 0x02 ALI Status O OFF 1 ON Read only 3 0x03 AL2 Status O OFF 1 ON Read only 4 0x04 Autotuning status O OFF 1 ON Read Write 5 0x05 Auto Man Status 0 Auto 1 Man Read Write 6 0x06 Direct reverse action 0 Direct 1 Reverse Read Write 7 0x07 Impostazione Unit 0 C 1 F Read Write 8 0X08 Digital input status 0 open contact Read only 1 closed contact 9 0x09 Reserved 10 0x0A Reserved 11 0x0B SET key status 0 Not pressed key Read only 1 Key pressed 12 0x0C lt A M key status 0 Not pressed key Read only 1 Key pressed 13 0x0D DOWN key status 0 Not pressed key Read only 1 Key pressed 14 0x0E UP key status 0 Not pressed key Read only 1 Key pressed 18 Modbus exceptions t s not possible read more than 16 registers time t s not possible read more than 16 coils time If the master ask for an address out of table the slave will reply with the modbus error ILLEGAL DATA ADDRESS If the master ask to write a data out of range the slave will reply with a modbus error ILLEGAL DATA VALUE If the master ask to write a data of a register out of modbus table the slave will reply with a modbus error ILLEGAL DATA VALUE If the instrumen
4. 16 7 Communication time 17 Registers table 17 1 Coils table 18 Modbus exceptions 19 SLx parameters code 20 Technical data Pag 61 pag 28 pag 32 pag 33 pag 33 pag 34 pag 34 pag 35 pag 38 pag 39 pag 40 pag 41 pag 41 pag 42 pag 43 pag 44 pag 44 pag 44 pag 45 pag 45 pag 46 pag 46 pag 46 pag 46 pag 47 pag 48 pag 49 pag 50 pag 50 pag 50 pag 51 pag 52 pag 53 pag 54 pag 54 pag 54 pag 56 pag 56 pag 57 pag 58 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 2009 ITALCOPPIE sensori s r l K B pocorrie I S AN sensor MARK ITALCOPPI E SENSORI s r l Via A Tonani 10 26030 Malagnino Cremona Italy Tel 439 0372 441220 Fax 439 0372 441238 http www italcoppie it email seriech italcoppie it Warranty We warrant that the products will be free from defects in material and workmanship for 2 years The warranty above shall not apply for any failure caused by the use of the product not in line with the instructions reported on this manual Product return the instrument can be returned under warranty only after Italcoppie sensori authorization ITALCOPPIE sensori s r l reserves the right to modify this manual and or product described herein withouth further notice Nothing in this manual nor in any of the data sheets and other supporting documentation shall be interpreted as conveying an express or implied warranty representation or guarantee regarding the suit
5. A H Alarm 2 hysteresis for thermocouple and RTD sensor this value it s always on tenth of degree Hysteresis example over Alarm 1 Al l 50 c RHI 5 0 c 5t 3 001 deviation high SV 100 C 100 C 145 C 150 C PV Pag 33 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 11 4 Alarm suppressing at power on The alarm suppressing at power on function can be enabled by setting the most significant bit of SL4 parameter for Alarm 1 SL4 1xxx and SL5 parameter for alarm 2 SL5 1xxx This function suppress the alarm at the power on instrument alarm often occurs immediatly after power on or set point change Take electrical furnace temperature control heating control as an example the actual temperature is far below target set point at power on If lower alarm is configured then the alarm condition may satisfied at power on but in fact the control system my not have problem If an alarm condition is satisfied again after it is cleared then the alarm function is started up The alarm suppressing will start at the instrument power on and also at any Set point SV changing 11 5 Level 2 parameters description AL i Alarm 1 threshold AL e Alarm 2 threshold For alarms functionality see chapter Alarms description H r U Auto tuning 1 Auto tuning enabled orange AT led blinking 0 Auto tuning disabled orange AT led off The autotuning functionality check the process and automaicly calcul
6. IKD USER S MANUAL PROCESS CONTROLLER C H SERIES ManCH UK Vers 1 3 May 09 ITALC OPPIE SENSORI s r l CH SERIES PROCESS CONTROLLER Pag 2 WARNING If failure or error of this instrument could result in a critical accident of the system install an external protection circuit to prevent such an accident Do not turn on the power supply untill all of the wiring is completed Otherwise electric shock fire or malfunction may result Use this instrument within the scope of specifications Otherwise fire or malfunction my result Do not use this instrument in the place subject to flammable or explosive gas Do not touch high voltage blocks such as power supply terminals etc otherwise electric shock my result Never disassemble repair or modify the instrument This may cause electric shock fire or malfunction Over temperature protection Any control system design should take into account that any part of the system has the potential to fail For temperature control systems continued heating should be considered the most dangerous condition and the machine should be designed to automatically stop heating if unregulated due to the failure of the control unit or for any other reason The following are the most likely causes of unwanted continued heating Controller failure with heating output coinstantly on Disengagement of the temperature sensor from the system A short circuit in the thermocouple wiring A valve or s
7. category Pollution degree I AD converter 14 bit accuracy Sample time 5 time seconds any 250mS Measure accuracy 25 C 0 2 F S for RTD input and Volt mA linear input 2 F S 2 C for thermocouple input automatic cold unction compensation Input Type Range Ref Input Normative impedence K 0 1372 C IEC584 2 2MQ J 0 1200 C IEC584 2 2MQ R 0 1769 C IEC584 2 2MQ S 0 1769 C IEC584 2 2MQ B 0 1820 C IEC584 2 2MQ E 0 1000 C IEC584 2 2MQ N 0 1300 C IEC584 2 2MQ T 0 0 400 0 C IEC584 2 2MQ Pt100 Pt1000 199 9 649 0 C IEC751 1 3KQ Volt 0 5 0 10 V 1MQ mA 0 20 mA 302 Regulation Output Relay SPDT Max Load 54 250Vca 6A 125Vca Logic 15Vcc 0 15Vcc 20 max 35 MA See Note 2 Continuous Resolution 10bit Min load 1KQ Volt Short circuit protection Continuous Resolution 10bit Max load 5009 mA Short circuit protection Servovalve 2 Relay SPST Max Load 3A 250Vca regulation 3A 30Vdc Alarms Relay SPST Max load 3A 250Vca 3A 30Vdc Digital input 2 5Kvolt galv insul Active jumping the terminals 16 17 Pag 58 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Power supply for 24Vcc 10 max 25mA 2 wire transmitter Short circuit protection Serial interface RS485 2 5Kvolt galvanic insulation Max Baud rate 19200bps Max devive on RS485 network 247 Protocol Modbus RTU slave Memory All instrume
8. 1 Enabled Filter enabled MENU LEVEL 5 nnn Access f rom Level 2 set Lock 1 U U U and Lo d 0 U U then push the SET key Pag 30 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Display Description Setting range Default value Poo Output Offset 0 0 100 0 0 0 Add 38 oPL Regulation 0 0 100 0 100 096 Add 39 output power limit Add Serial address 0 Disabled 1 1 255 Baud rate 0 2400bps 1 4800bps 2 bPS 2 9600bps 9600bps 3 19200bps Code Bit Parity Stop bit b F Communication 9 8 None 1 0000 parameters 1 8 odd 1 No parity N 8 1 2 8 Even 1 AT Modbus delay 0 2000ms Ooms LEVEL 6 MENU Access from Level 2 set Lock zi UU U and Lo d U D 1 i then push the SET key Display Description Setting range Default value CPC Second Set sPH sPL 20 C Add 2 Point iz Set point ramp 1 900 minutes 1 minute Add 40 time Note 1 for the software version 1_1 the default sensor is thermocouple K and the set point limit is 1372 C Input probes range Input probe Range Range SPL Range SPH K 0 1372 C 0 C 1372 C J 0 1200 C 0 C 1200 C R 0 1769 C 0 C 1769 C S 0 1769 C 0 C 1769 C B 0 1820 C 400 C 1820 C E 0 1000 C 0 C 1000 C N 0 1300 C 0 C 1300 C T 0 0 400 0 C 0 0 C 400 0 C Pt100 Pt1000 199 9 649 0 C 199
9. 45 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 15 Modbus RTU 15 1 Preliminary notes MODBUS was used primarily in industrial applications thanks to the dominating presence of Modicon in the PLC market which developed the standard for its own equipment When the specifications became public and open the Modbus protocol was adopted in numerous automation applications and subsequently in all sectors For many years it has been a de facto standard and the Modbus protocol can be found on any intelligent equipment IFD Intelligent Field Device programmable controllers NC drivers man machine terminals measurement equipment etc 15 2 Communication model The connection is made over an RS 485 multipoint network typically by means of a twisted two wire cable with shielding The communications technique is of the Master Slave type multipoint half duplex in which only the Master typically a Host PC can initiate communications with a request Query while the Slaves respond with a message Response only to the queries addressed directly to themselves One master can control up to 247 slaves on a single line note that this is a logical limit of the protocol however the physical interface may further limit the number of devices for example the standard RS 485 interface supports a maximum of 31 slaves on a single line If we replace the last device on the line with a bridge or repeater a further 31 sl
10. 9 C 649 0 C 0 4 20mA 1999 1999 1999 u i 1999 u i 0 1 5V 0 2 10V 1999 1999 1999 u i 1999 u i Table C nput accuracy is not guarantee from 0 to 399 C Pag 31 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 11 1 Alarms description The following graphical representations are referred to SL7 parameter xx00 NO NC For more information over SL7 parameter see next chapter SV Set Point value AL Threshold Alarm ALI AL2 PV Process value DEVIATION HIGH code x001 __ ss EN SV SV AL PV DEVIATION LOW code x101 SV AL SV PV DEVIATION HIGH LOW code x010 SV AL SV SV AL PV BAND code x110 s ns SV AL SV SV AL PV PROCESS HIGH code x011 __ i NM SV AL PV PROCESS LOW code x111 on 3 AL SV PV Pag 32 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER The black ON area indicate the relay status alarm ON Relay contact closed 11 2 Alarm trigger 4 5 L I Alarm relay trigger type Example with Alarm 1 as deviation high If SL7 xxx0 so the trigger is NO NC black area ON realy closed contact SV SV AL PV If SL7 xxx1 so the trigger is NC NO black area ON realy closed contact OFF SV SV AL PV 11 3 Alarm Hysteresis On men Level 4 it is possible set the alarms Hysteresis by AH1 and AH2 parameters RH I Alarm 1 hysteresis for thermocouple and RTD sensor this value it s always on tenth of degree
11. 9 3 AUTO MAN and MAN AUTO regulation switch 10 Setting parameter menu flow chart Pag 60 CHSERIES PROC ESS CO NTROLLER pag 2 pag 4 pag 5 pag 5 pag 6 pag 7 pag 7 pag 8 pag 8 pag 9 pag 10 pag 10 pag 11 pag 11 pag 11 pag 13 pag 13 pag 13 pag 14 pag 14 pag 15 pag 15 pag 15 pag 16 pag 16 pag 16 pag 17 pag 17 pag 18 pag 19 pag 20 pag 20 pag 21 pag 22 pag 23 pag 24 pag 25 pag 26 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 11 Programmation parameters table 11 1 Alarms description 11 2 Alarm Trigger 11 3 Alarm Hysteresis 11 4 Alarm suppressing at power on 11 5 Level 2 parameters description 11 6 ON OFF regulation 11 7 Level 3 parameters description 11 8 Level 4 parameters description 11 9 Level 5 parameters decription 11 10 Level 6 parameters description 11 11 Ramp function 12 HW and SW show version 13 Display at error occourrence 14 RS485 serial interface with Modbus rtu protocol comm 14 1 Communication cable layout 14 2 Guide to RS 485 network 14 3 Capacitive load of the line 14 4 Line polarity 15 Modbus RTU 15 1 Preliminary notes 15 2 Communication model 15 3 Transmission 15 4 CRC16 15 4 1 CRC16 Visual Basic example 15 5 CRC16 calculation flow chart 15 6 Message syncronisation 16 Modbus functions 16 1 Read N bit FC 01 o 02 16 2 Read N register FC 03 o 04 16 3 Assigning a bit FC 05 16 4 Assigning a register FC 06 16 6 Modbus error codes
12. device decodes it to determine whether the message is addressed to itself After the last transmitted character an interval of 3 5 characters follows to indicate the end of the current message A new message can start immediately after expiry of this delay The entire message frame must be transmitted continuously If a new message starts before the delay of 3 5 characters has expired the receiver will consider it to be the continuation of the previous message this generates an error since the value of the last field CRC will not be valid for the combined messages START ADDRESS FUNCTION DATA CRC END CHECK T1 T2 T3 T4 1 CHAR 1 CHAR N CHARS 2 CHARS T1 T2 T3 T4 8 bits 8 bits n x 8 bits 16 bits 16 Modbus functions We describe in detail the modbus functions implemented on CH series devices 16 1 Read N Bit function code Olor 02 This function allows the user to obtain the logical values ON OFF of the bits of the addressed device The reply data are packed in bytes in such a way that the first bit requested occupies the bit of least weight of the first data byte The following carry on so that if they are not a number that is a multiple of 8 the last byte is completed with zeros Master device section Device Function Address of Number of bit to CRC address code the first bit be read max 255 01 0 02 1 byte 1 byte MSB LSB MSB LSB MSB LSB Pa
13. instrument before removing the instrument from the shell the operator must discarge himself to ground Pull out the internal assembly please refer to chapter How to pull out the internal assembly 2 Set the jumper for Pt100 or Pt1000 accordling your sensor as following Pag 11 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER PT100 Series CH102 Pag 12 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CO NTROLLER PT1000 Series CH402 ATTENTI ON The jumper factory default setting is Pt100 3 Pull in the insternal assembly and power on the instrument 4 On men level 3 set the parameter SL1 1000 Pt100 Pt1000 Please see instrument programmation chapter for more infromations 4 4 2 Wiring RTD accordling EC751 WHITE 4 5 Linear input signals 4 5 1 0 5 Volt or 1 5V signal input On level 3 menu set SL1 1100 for the 0 5Volt input or SL1 1101 for 1 5Volt input Pag 13 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 4 5 2 0 10 Volt or 2 10V signal input The above adaptor is enclosed with instrument packaging On level 3 men set SL1 1100 for the 0 10Volt input or SL1 1101 for 2 10Volt input 4 5 3 0 20mA or 4 20mA linear input 0 20mA Res 2509 ATTENTION for the 0 4 20mA linear input put between the terminals 11 and 12the 250 Q shunt resistor enclosed on instrument packaging On level 3 menu set SL1 1100 for the 0 20mA i
14. it only one turn just after it touches the panel Insert the L shaped hook of the mounting bracket into the groove then firmly secure it in the groove Fig 3 Make a rectangular square holes corresponding to the number of instruments to be mounted through the panel by reffering to panel cutout dimensiions Insert the instrument into the panel from the panel cutout Insert the mounting bracket into the mounting groove of the instrument Fig 1 Push the mounting bracket into the instrument until the instrument is firmly fixed to the panel Fig 2 3 Instrument unplugging To prevent electric shock or instrument failure only qualified personnel sh Pag 7 ould be allowed to pull the internal assembly ITALC OPPIE SENSORI s r l CH SERIES PROCESS CONTROLLER To prevent electrical shock or instrument failure always turn off the power before pulling out the internal assembly Electrostatic discharges can damage the instrument before removing the instrument from the shell the operator must discarge himself to ground To prevent injury or instrument failure do not touch the insternal printed circuit board 2 3 1 How to pull out the internal assembly Lock upper TS Lock lower em PIN Unlock using such an screwdriver Gently press down on handle for the upper lock and lift up for the lower lock CAUTION Don force to unlock to protect the frame against possible damage Note Recommended tool Minus headed
15. l C H SERIES PRO C ESS CONTROLLER 9 1 Input type and input range display At the power the display instrument will show the input type the range and the measuring unit Example for a controller with the K thermocouple input type and range from 0 to 1372 C Input type PV aP n P iinput abbreviation SV orp C Engineering unit LU unputitype see Table A After 3 sec Input Range Input range high Input range low Table A Disploy P Jc SB ETa Co Pr u Input Thermocouple RTD ype KJ R S B E T N Aigo 020mA Giovi For Pt100 Pt1000 or 0 5V 0 10V selection see chapter Wiring Pag 23 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 9 2 Parameter setting procedure Setting Set Value SV Example following is an example of set value SV to 200 C 350 Step by step 1 Press SET key to enter the SV setting mode The digit wich light brightly is settable 2 Press the lt A M key to shift the digit wich light brightly up to the hundreds digit 3 Press the UP key to set 2 Pressing the UP key increase numerals and pressing the DOWN key decrease numerals 4 After finishing the setting press the SET key All of the set value digits light brightly and as a result the instrument returns to the PS SV display mode Setting parameters other than set value SV L impostazione dei parametri di programmazion
16. request end to slave answer This parameter could be used to syncronize the communication when over network there are different kind of instruments 11 10 Level 6 parameters description 5 P e Second Set point The user can activate this set point by a digital input function see SLA parameter description 5 f Ramp Set point time 1 9999 minuts 11 11 Ramp function The ramp function it s available only from firmware version 1 2 and higher To know wich is the instrument firmware version see chapter HW e SW show version The ramp function allows sudden variations to be reduced in the process in the r face of changes in the setpoint with 5 1 parameter the user can select the ramp slope Example r 15 minuts actual PV value 150 C If the user change the set point to 250 C then the instrument will start a ramp from 150 C the ramp start always from actual PV value to 250 C with a positive gradient of 6 6 C minut 250 150 15 6 6 so at any minuts the set point increase of 6 6 C up to 250 C The ramp will stop after 15 minuts 5 LU b 1xxx Ramp enabled Oxxx Ramp disabled It is possible set two different ramp type one shot and continuous Moreover it S possible define if the ramp have to start at any instrument power on One shot type SLB 1001 In One shot mode the ramp function run only one time when the user change the set point at the end of ramp the parameter SLB 1000 On this situation any
17. screwdriver Recommended head widht 6mm 3 Environmental ratings Operating conditions Temperature 0 50 C Relative humidity non condensing 45 85 FORBI DDEN Conditions Corrosive atmosphere Explosive atmosphere 3 1 Mounting cautions This instrument is intended to be used under the following environmental conditions Overvoltage category II Pollution degree 2 Avoid the following when selecting the mounting location Ambient temperature of less than 0 C or more than 50 C Pag 8 ITALC OPPIE SENSORI s r l CH SERIES PROCESS CONTROLLER Ambient humidity of less than 45 or more than 85 RH Rapid change in ambient temperature wich may cause condensation Corrosive or inflammable gases Direct vibration or shock to the mainframe Water oil chemicals vapor or steam splashes Excessive dust salt or iron particles Excessive induction noise static electricity magnetic fileds or noise Direct airflow from an air conditioner Should be used indoord where the system is not exposed to direct sunlight e Heat to be accumulated radiation heat 4 Wiring Despite the fact that the instrument has been designed to work in an harsh and noisy environmental it is strongly recommended to follow the following suggestions All the wiring must comply with the local regulations x The supply wiring should be routed away from the power cables x Avoid to use electromagnetic contactors power relay
18. section Device Function Number Value of Value of CRC address code of byte first last read register register 1 byte 1 byte 1 byte MSB LSB MSB LSB MSB LSB Pag 51 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Example Read 2 register from the register with address 0 Process value and Set Value of the instrument address 1 Master device section Device Function Address of first Number of CRC address code register register to be read 01 03 00 00 00 02 C4 OB Device master section Device Function Number Value of Value of CRC address code of bytes first last read register register 01 03 04 00 61 00 50 AB D1 The reply tell us that the register 0 and 1 have respectively the hexadecimal value 0x0061 PV 97 C and 0x0050 SV 80 C The maximum number of regester to be read is 16 a request of an higher number than 16 will make a frame error 16 3 Assign a bit Function code 05 This function allows the user to assign the logical values ON OFF of the bits of the addressed device To deactivate the bit 00h should be sent and to activate it Olh or FFh This value must be written in the most significant byte Master device section Device Function code Bit address Bit value CRC address 05 1 byte 1 byte MSB LSB
19. to regulate with right Set Point with reference to above example the autotuning will be made over SP 120 C but at the end of autotuning procedure the regulation will be made automaticly to SP 150 C with new PID calculated parameters P Proportional band on C or F or engineering units Is the action wich the control output varies in proportion to the deviation between the setting vale SV and the processing temperature PV Example 50 C SV 250 C The proportional band could be draw as following Proportional Band U 100 200 C SV 250 C PV the proportional band is narrowed even if the output changes by a slight variation of the processing temperature better control results can be obtained as the offset decreases However if the proportional band is narrowed too much even slight disturbances my cause variation in the processing temperature control action changes to ON OFF action and so hunting phenomenon occurs 11 6 ON OFF regulation If the proportional band 0 then the kind of control is ON OFF When the controller is configured to work in ON OFF mode the output of the controller only takes two values 0 or 100 For example in a temperature control process the output takes the value of 100 when the process is under the setpoint and 0 when the process is above the consignment The following graph shows the saw tooth shape with which the process reacts under this kind of control Pa
20. 0 SetCod 0011 and push GED to and puch ED to enter on Level 5 enter on Level 6 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 11 Programmation parameters table LEVEL 2 MENU Access Push the SET key for 3 seconds Display Description Setting range Default value HL ALI Threshold SPH SPL 10 C Add 5 Al g 2 Threshold sPH SPL 10 C Add 6 TU Auto Tuning 0 Disabled 0 Add 7 1 Enabled Disabled P Proportional 0 ON OFF Regulation 30 C Add 8 Band SPH SPL i Integral Time 0 Integral time exclusion 240 seconds Add 9 1 3600 seconds d Derivative 0 Derivative time exclusion 60 seconds Add 10 time 1 3600 seconds Hr Integral time 10096 No limitation 10096 Add 11 limitation 1 9996 r Cycle time 1 100 seconds 1 sec Logic Out Add 12 20 sec Relay Out d F Offset pv 1999 1999 0 Add 16 L T P Lock Function See Table B Add 17 EF 0 d Lock code See Setting parameter men Add 18 LI VEL 3 MENU Access from Livel 2 set Lock I UU and Lo d U UU U then push SET lt A M keys togheter Display Description Setting Range Default value Input sensor selection 0000 K 0001 0001 Thermocouple j 0010 E See Note 1 0011 N 0100 R Note 0101 S The 0 10V or 2 10V input need the enclosed adaptor 01
21. 0 Read Write 13 0x0D Reserved 14 OxOE Reserved 15 OxOF Reserved 16 0x10 H F Process value offset 1999 1999 Read Write 17 0x11 L E Access reserved levels 0 15 Read Write 18 0x12 g Code reserved levels 0 15 Read Write 19 0x13 i Sensor type selection 0 15 Read Write 20 0x14 Measure unit 0 15 Read Write 21 0x15 L S Reserved 0 15 Read Write 22 0x16 Wd ALI setting 0 15 Read Write 23 0x17 AL2 setting 0 15 Read Write 24 0x18 E Offset and out Action 0 15 Read Write 25 0x19 i AL1 and AL2 Trigger 0 15 Read Write 26 0x1A Auto Man regulation 0 15 Read Write 27 0x1B Reserved 28 0x1C Digital input setting 0 3 Read Write 29 0x1D Ramp set point setting 0 15 Read Write 30 0x1E b p Set point High limit 1998 9999 Read Write 31 0x1F Pi Set point low limit 1998 9999 Read Write 32 0x20 g p Decimal point 0 3 Read Write 33 0x21 H ON OFF Hystersis 0 1000 Read Write 34 0x22 H AL1 Hystersis 0 1000 Read Write 35 0x23 AL2 Hystersis 0 1000 Read Write 36 0x241 AT autotuining SP 0 100 Read Write 37 0x25 F Filter enable 0 1 Read Write 38 0x26 p 0 Output Offset 0 1000 Read Write Pag 55 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 39 0x27 P L Output Limitation 0 1000 Read Write 40 0x28 t r Ramp time 1 900 Read Write 41 0x29 SW Version Read only 42 0x2A HW Version Read only 43 0x2B Reserved
22. 10 B see chapter wiring 0111 T For current input signal 1000 Pt100 Pt1000 Pag 28 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 1001 Cu50 connect the enclosed 50092 shunt resistor see chapter 1010 0 5V wirement 1011 1 5V 1100 0 20mA 1101 4 20mA Add 19 Sie Unit of xxx0 C 0000 C Add 20 Temperature xxx1 F SL J Reserved E x000 Disabled x001 Deviation high x010 Deviation high low 5L u Alarm 1 x011 Process high setting x101 Deviation low 0001 x110 Band Deviation high x111 Process low Without suppressing alarm at the power on Oxxx Without suppressing Add 22 1xxx With suppressing x000 Disabled x001 Deviation high x010 Deviation high low 5L 5 Alarm 2 x011 Process high setting x101 Deviation low 0101 x110 Band Deviation low X111 Process low Without suppressing alarm at the power on Oxxx Without suppressing Add 23 1xxx With suppressing Action and xxx0 Direct action 0101 for instruments SL DB offset xxx1l Reverse action with continuous output selection the XOxx Relay or Logic output last one only for X11x 0 20maA 0 10V output 0001 For instruments Add 24 continuous output X10x 4 20mA 2 10V output with Relay or logic output xxxO Trigger NOF NC ALI Si 7 Alarm relay xxxl Trigger NC NO 0000 trigger type xxox Trigger NOF NC AL
23. 2 ALI Trigger Nof Ne Add 25 xxlx Trigger NCt NO AL2 Trigger Not Nc Power on Oxxx Man out 096 manual out lxxx Last man out set 0110 5 L B Man Power on 0 Regulation xxOx Automatic Reg Regulation Auto Man Selection xx1x Selection Auto Man Serial interface enabled Pag 29 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Serial x0xx Disabled interface x1xx Enabled Add 26 5 L g Reserved Don t change the default value 1111 Digital input 0000 No function 0001 Switch from SLA SP lt gt SP2 0000 0010 Swithc from No function AUTO lt gt MAN Add 28 0011 Keyboard lock SL B Set point lxxx Ramp enabled 0000 i Disabled Add 29 ramp Oxxx Ramp disabled isable LEVEL 4 MENU Access from Level 2 set Lock zi UU and Lod U UU then push the SET key Display Description Setting Range Default value Set Point High See Table C SPH limitsetting High linearization value for 1200 C linear input Volt mA See Note 1 Add 30 Set Point Low See Table C GP limit setting Low linearization value for 0 linear input Volt mA Add 31 d P Decimal point 0 3 0 Add 32 No decimal point On OFF control 0 100 0 o H Hysteresis 1 0 C Add 33 RHI Alarm 1 0 100 0 1 0 C Add 34 Hystersis RH Alarm2 0 100 0 1 0 C Add 35 Hystersis Yo Autotuning 0 100 80 Add 36 Set point Filter 0 Disabled 1 Add 37
24. MSB LSB MSB LSB Device master section Device Function Bit address Bit value CRC address code 05 1 byte 1 byte MSB LSB MSB LSB MSB LSB Example Assign the activation status to the Auto Man of the instrument with address 1 Pag 52 bit with address 5 switch ITALC OPPIE SENSORI s r l Master device section CH SERIES PROC ESS CONTROLLER Device Function Bit address Bit value CRC address code 01 05 00 05 FF 00 9C 3B Device master section Device Function Bit address Bit value CRC address code 01 05 00 05 FF 00 9C 3B The reply indicates that the bit 5 has been activated so the instrument is on manual control 16 4 Assigning a register Function code 06 This function enables the user to modify the content of the parameters of the addressed device Master device section Device Function Register Register value CRC address code address 06 1 byte 1 byte MSB LSB MSB LSB MSB LSB Device master section Device Function Register Register value CRC address code address 06 1 byte 1 byte MSB LSB MSB LSB MSB LSB Example Assign the value 15 000Fh to address register with address 01 Set Point of CH instrumet with address 2 Master device section Device Function Register Register value CRC address code address 02 06 00 01 00 OF 98 3D Pag 53
25. R 4 MOG 8 ALARM 1 3 TXRx BA 9 Mia Liq 4 gt VIMAO TC L Se ena 13 9 A L ae 4 L TXRX Peg E 6 oO E 24Vec ig am YA L 19 ALARM 1 NOG 8 O 9 L 2 o aT O 23 umb TC 112 Q4 Pag 10 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 4 3 Thermocouple input 4 4 Connect the wires with the polarity as shown Use always compensation cable of the correct type for the therocouple used The shield if present must be connected to a proper earth See programmation instrument chapter to understand how to set the right type of thermocouple Resistance termometer input Pt100 EC Pt1000 TEC RTD If a 3 wire system is used use always cables of the same size 1mm min Line 109 lead maximum resistance When using a 2 wires system use always cables of the same size 1 5mm min and put a jumper between terminals 11 and 12 Over terminals 10 11 12 can be plugged either PT100 or Pt1000 resistance termometer The Pt100 Pt1000 selection have to be made by an internal jumper over instrument board and by SL1 parameter setting 4 4 1 Input probe Setting Pt100 or Pt1000 CAUTI ON 1 To prevent electric shock or instrument failure only qualified personnel should be allowed to pull the internal assembly to prevent electrical shock or instrument failure always turn off the power before pulling out the internal assembly Electrostatic discharges can damage the
26. Set point changing don t start any new ramp to start a new ramp the user have to set again SLB 1001 and re change the set point value One shot type with start at the power on off instrument SLB 1100 On this mode one shot start at power on at any instrument power on the ramp start from PV value to SV value with a Ramp time value this functionality is used for a soft start system Continuous type Pag 41 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER SLB 1010 On this mode the ramp will start at any Set point changing Continuous type with start at the power on off instrument On this mode the ramp will start at any Set point changing and at any instrument power on Active Ramp function indication The decimal point blinking on first right SV display means that the ramp is active Switch from SP and SP2 by digital input The ramp start also when the user change the set point SV lt gt SP2 by digital input Ramp amp exceptions If during ramp mode the sensor broke or go on over or under range the ramp stop immmediatly To stop disable the ramp the user have to set SLB 0000 During tuning it s not possible activate a ramp During a ramp it s not possible start the autotuning procedure The ramp can start only if the gradient is lower than 10digits seconds Example ST 1minut 60seconds PV 12 0 C SV 50 0 C The gradient will be SV PV ST 500 120 60 6 3digits second so the ramp CAN s
27. Thanks to this standard the Evo Ser series can be hooked up directly to the majority of commercially available PLC s and SCADA packages with the option to connect these modules together with other devices PLC s operator panels CNC equipment etc over a single network CH series devices are equipped with an RS 485 serial port with 2 wire connection please see relative chapter for wirement The RS485 serial interface is galvanically isolated 2 5KVolt if the master unit is equipped with an RS232 serial interface we recommend using an isolated converter If the master unit is equipped with an RS485 port we recommend using an RS485 galvanic separator 14 1 Communication cable layout To prevent external interference with the serial signal and obtain the highest efficiency between the master and the CH series devices a number of small precautions must be observed The most important and simplest is to physically separate the power and communications cables and route them as far as possible from contactors electromagnets powerful motors etc The type of cable used is essential to the operation of the system as a whole The most important specification is capacitance per metre pF m the lower the capacitance of the cable the longer the line may be In this regard the power cable and generic ducting cables are absolutely to be avoided inasmuch as they have a very high capacitance per metre Furthermore to obtain high resistanc
28. ability of the product for any particular purpose ITALCOPPIE sensori s r l does not assume any liability or obbligation for damages actual or otherwise of any kind arising out of the application use of the products or manuals The product described in this manual are not designed intended or authorized for use as components in systems intended to support sustan life or any other application in wich failure of the product could create a situation where personal injury or death may occur ManCH UK Vers 1 3 May 09 Pag 62
29. alified personnel To prevent hands or metal touching parts that may be electrically live the controllers must be installed in an enclosure and or in a cubicle gt OO ho NI I NI NO 2 1 CH102 dimensions measures on mm 48 100 j CH102 panel cut out measures on mm e Ls LO CN St 458 25 Note The front of the instrument waterproof conforms to 1P65 with the instrument mounted on the control panel In order to assure the waterproof check that there is no dislocation of the packing nor clearance between the instrument and mounting frame with the instrument mounted 0 6 Pag 5 ITALC OPPIE SENSORI s r l CHSERIES PROC ESS CO NTROLLER 2 2 CH402 dimensions measures on mm 48 8 2 100 96 91 8 CH402 panel cut out measures on mm i 92 t 45189 25 Note The front of the instrument waterproof conforms to IP65 with the instrument mounted on the control panel In order to assure the waterproof check that there is no dislocation of the packing nor clearance between the instrument and mounting frame with the instrument mounted Pag 6 110 8 C AE ITALC OPPIE SENSORI s r l CH SERIES PROCESS CONTROLLER 2 3 Mounting procedures 1 2 3 4 2 Fig 1 Fig 2 When mounting the instrument by tightening screw Mounting bracket ine p B Hexagon nut When tightening each screw tighten
30. ate the main P I D paramaters proportional band integral time derivative time to achieve the best regulation without over or undershoot The autotuning can NOT be activated on the following situations The input sensor is under or over range The input sensor is broke The instrument is on Manual regulation The autotuning STOP at the following situations f input sensor broke or go under or over range The user change the regulation from automatic to manual The user change Set point including the situation switch Set Point from digital input The user set the proportional band 0 ON OFF control The autotuning is made by an ON OFF control over a Yo set point defined on a I parameter men Level 4 Pag 34 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER r Al P 100 then the tuning will be made over the same Set point showed on instrument orange display on the other case when Atp lt 100 the tuning Set point will be automaticly calculated with of Atp parameter Example If Set point 150 C and the A r P 80 then the tuning will be made over Set Point 120 C The tuning will check the process by an ON OFF regulation over this step a big dangerous overshoot should be reach so before start the autotuning procedure set the R r P parameter accordly to your system requred At the end of autotuning process the instrument will calculate the main PID parameters and il will start
31. aves can be installed an so on up to the logical limit The Modbus protocol establishes the format of the query which contains the address of the slave being queried a function code for the requested action various fields for exchanging data registries coils etc and a field to check for communications errors CRC The slaves respond with messages which are structured in the same way if a slave is unable to complete the requested action it sends an error code in the response 15 3 Transmission The CH series devices employ the RTU Modbus protocol the serial mode and setup must be the same for all devices on the Modbus network In RTU Remote Terminal Unit mode the messages which are composed of single bytes are sent in the form of two 4 bit hexadecimal characters The advantage of this is that the quality of data exchange is better than that provided by the ASCII mode for a given transmission speed Each communications packet must be transmitted in a continuous cycle Pag 46 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER The format for each RTU mode byte is Coding system 8 binary bits from 00 to FF Two hexadecimal characters are contained in each 8 bit field of the message Each 8 bit character of the message corresponds to one data byte Character format 1 start bit 8 data bits the 1st bit is the least significant no parity bit None 1 stop bit Address Modbus transactions always invo
32. bles and parameters are coded as signed integers notation in complement of 2 without decimal point for example a Process Value displayed as 25 0 is transmitted as 250 Assignment is only possible to the field admitted for each parameter if you attempt to assign a value outside the admitted field the CH series device will return an error message with exception code 3 and will not execute the assignment Assigning word values with functions 06 and 16 is only allowed for addresses in which this is possible parameters marked R W in the table Pag 54 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Modbus Parameter Parameter description Range Access type address symbol O 0x00 PV Process vale Rif Tab C Read only 1 0x01 SV Set Point SPH SPL Read Write 2 0x02 5P 2 Second Set Point SPH SPL Read Write 3 0x03 Regulation output o 0 OpL MAN Read Write Auto Read only 4 0x04 Active Set Point Read only 5 0x05 A i Threshold Alarm 1 1999 1999 Read Write 6 0x06 At g Threshold Alarm 2 1999 1999 Read Write 700x071 Ai U Auto Tuning 0 1 Read Write 8 0x08 P Proportional band 0 1000 Read Write 9 0x09 l Integral time 0 3600 Read Write 10 0x0A Derivative time 0 3600 Read Write 11 0x0B B Integral time limitation 0 100 Read Write 12 0x0C L Cycle time 1 10
33. by SL6 parameter on menu level 3 4 11 Volt continuous output ATTENTION Minimum load 1KQ Max current 10mA Short circuit protection The offset selection 0 or 2 10V have to be made by SL6 parameter on menu level 3 Pag 16 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 4 12 Selection from Volt or mA continuous output CAUTI ON To prevent electric shock or instrument failure only qualified personnel should be allowed to pull the internal assembly to prevent electrical shock or instrument failure always turn off the power before pulling out the internal assembly Electrostatic discharges can damage the instrument before removing the instrument from the shell the operator must discarge himself to ground Pull out the internal assembly please refer to chapter How to pull out the internal assembly 4 12 1 Jumper for Volt continuous output VOLT CONTINUOUS OUTPUT Top view Front view For output offset selection 0 10V or 2 10V set the SL6 parameter on menu Level 3 see chapter Level 3 description parameters Pag 17 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 4 12 2 Jumper for mA continuous output CONTI NUOUS mA OUTPUT Top view Front view For output offset selection 0 20mA or 4 20mA set the SL6 parameter on menu Level 3 see chapter Level 3 description parameters ATTENTION The default fac
34. e deve essere eseguita nella stessa modalit sopra riportata seguendo i passi da 1 a 4 The setting procedure are the same as those of example 2 to 4 in the above Setting set value SV Pressing the SET key after the setting end shifts to the next parameter When no parameter setting is required return the instrument to the PV SV display mode Key operational cautions Even if the displayed value is changed it is not registred To register it press the SET key f the key is not operated for more than 1 minute the present mode return to the PV SV display mode Pag 24 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 9 3 AUTO MAN and MAN AUTO REGULATION SWITCH If SL8 parameter men level 3 is enabled xx1x the instrument can run either on manual mode the user make themself a manual regulation setting the main regulation output or in automatic mode the instrument calculate automaticly the right regulation output to achieve the Setting value The switch form Auto to Man or Man to Auto have to be made as following Switch AUTO Mode A M and M A 4 n 7 Ep is EB AUTO Mode OAT OovriOsER OALt OAL2 OAT CoutiOser OAL1 Oat2 1 Qo am V aD 4 V KO CH102 KO CH102 Push the key V Push the key x for4 AER I n i n BD LL BU oun Pune n D d Changing value Oat Cour Oser Catt Caz by keys
35. e to disturbances the cables must be twisted together and equipped with a metal shield connected to a good ground plant at_one end only with a characteristic impedance of around 120 ohm If these simple precautions are observed the line will operate at its highest possible speed over a distance of up to 1 200 metres The two devices master and last slave at each end of the line must be terminated star type connections are not allowed since each wire would be terminated thus significantly lowering the impedance of the line and blocking communications completely 14 2 Guide to RS 485 network The RS485 serial interface is based on a balanced differential communications line with typical impedance of 120 ohm The maximum cable run is not defined but depends on the speed of communications the signal noise ratio and the quality of the cable used The line is generally guaranteed to operate up to 1 200 m The cable can be unshielded if the run is of a few metres in an electrically only slightly noisy area For distances from 15 to 100 m you can use a shielded Pag 44 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER and twisted cable without special characteristics while for connections over 100 metres we recommend using a category 5 cable The ends of the line must be terminated in parallel with a 120 ohm resistance The shield of the cable must be connected to pin Nr 13 SG on the CH connector and grounded at one end onl
36. ements and EMC The products meet the requirements for the European WEEE Note Information in this user s manual is subject to change without notice No part of this pubblication my be reproduced transmitted transcribed or stored in a retrieval system or translated into any language in any form by any means without the written permission of the Italcoppie sensori s r l Pag 3 ITALC OPPIE SENSORI s r l CH SERIES PROCESS CONTROLLER 1 Ordering code CH Power supply 7 100 240Vac 50 60Hz I 21 48 Vac cc Dimension IN 48x96 1 8DIN Q 48x48 1 16DIN Regulation output ICA Continuous Volt mA LA Logic 15Vcc IRA Relay SPDT NA Control for servovalve Model I Universal input 2 SPST Relay alarms RS485 serial interface digital input 24Vcc power supply for 2 wire transmitters Option XX None Note Universal input Thermocouple Thermoresistence Pt100 Pt1000 Volt linear input 0 1 5 o 0 2 10 with an external adapter mA linear input 0 4 20 with shunt external resistor RS485 serial interface galvanic isolation with Modbus RTU communication Multi function digital input galvanic isolation enabled by an external contact like relay contact switch etc Power supply for 2 wires transmitter 24Vcc max 25mA with short circuit protection Pag 4 ITALC OPPIE SENSORI s r l CH SERIES PROCESS CONTROLLER 2 Installation Installation must only be carried out by qu
37. er on men Level 3 Pag 20 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 8 Front panel description PV Green display Process Value SV Orange display Setting value or Main regulation Output OUT1 Green Led Main regulation Output status AL1 Red Led Alarm 1 status AL2 Red Led Alarm 2 status AT Orange Led autotuning status blinking when active SER Green led serial communicatzion blinking when active RP Decimal point Set point ramp blinking when active Key Store parameter or change mode AIM Key switch Auto Man or shift digit on setting parameter WA Keys changing parameter value Pag 21 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 9 Operating environment Power ON il Show input tyoe and range value L After 4 seconds Show Process value and Set Point ry AU Setting Set Point GE environment S gt asec j Start programmation B S2 C parameters 3 Show Main Output 96 V gt or Set Point value V PIUU output value 100 V Switch Auto Man im ee de x or Man Auto gt 2sec 1 Means manual reg 0 P 4 5 Means automatic reg 45 If any keys are pressed for a time higher 1 minuts the display automaticly will show the process value PV on upper display and the Set point SV on down display Pag 22 ITALC OPPIE SENSORI s r
38. evice as fuse etc in the power supply input or output line if necessary Do not allow metal fragments or lead wire scraps to fall inside this instrument This may cause electric shock fire or malfunction Firmly tighten each terminal screw at the specified torque Otherwise electric shock or fire my result Do not place any obstacle around this instrument in order not to impede radiation of heat And do not close ventilation holes Do not connect wires to unused terminals Please apply appropiate power source to instrument according to rated power show on label over instrument a wrong power supply could damage the instrument and my cause short circuit or burn out Before cleaning the instrument always turn off the power supply Remove stains from this instrument using a soft dry cloth Do not use a volatile solvent such as thinner in order to avoid deformation or decoloration Do not rub not strike the display unit of this instrument with a hard object This controller has been designed with compliance to Regulations on electrical apparatus appliance systems and installations according to the European Community directive 73 23 EEC amended by the European Comunity directive 93 68 EEC and the Regulations on the essential protection requirements in electrical apparatus EN61010 1 93 A2 95 It is important to understand that it s responsibility of the installer to ensure the compliance of the regulations on safety requir
39. g NByte Len Stringa CRC 65535 For i 1 To NByte a Asc Mid Stringa I 1 C I CRC CRC Kor a And amp HFFFF ForN 0To7 If CRC And 1 Then CRC CRC 2 CRC CRC Xor 40961 Else CRC CRC 2 End if Next Next Buffer Right 0000 Hex CRC And amp HFFFF 4 CRC16 Chr amp H Right Buffer 2 Chr amp H Left Buffer 2 End Function Pag 48 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 15 5 CRC16 calculation f low chart Pag 49 HEX FFFF gt CRC 16 CRC 16 XOR byte gt CRC 16 CRCI6 right shift CRC 16 KOR Hex A001 CRC 16 Next Byte message ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 15 6 Message synchronisation The message between the transmitter and receiver is synchronised by inserting a pause between messages of at least 3 5 times the time it takes to transmit a character this pause therefore depends on the baud rate If the receiver does not receive for a period of 3 5 characters it assumes the previous message to be complete and considers the subsequent byte to be the first of a new message and thus an address The network devices constantly monitor the bus including the silent pause The admissible characters transmitted for all fields are 8 bit numbers hence in the range 0 to 255 The first transmitted field is the address of the device When the first field address has been received each
40. g 35 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 150 100 50 4 0 In this control mode the user may programme a hysteresis between the connections and the disconnections 0 H ON OFF Hysteresis men level 4 for thermocouple and RTD sensors this value is on tenth degree SV OH SV PV If the instrument work on manual mode the user can set only 2 values ON permanent output and OFF no output The lower display will show l Integral time 0 3600 seconds Integral action is used to eliminate offset When the integral time is short the returning speed to the setting point is accelerated however the cycle of oscillation is also accelerated and the control becomes unstable It is possible exclude the integral time by setting the value 0 g Derivative time 0 3600 seconds Derivative action is used to restore the change in the processing temperature according to the rate of change It reduces the amplitude of overshoot and undershoot widht If the derivative time is shortened restoring value becomes small and if the derivative time is made longer an excessive returning phenomenon my occur and the control system my be oscilleted Pag 36 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER R f Integral time limitation This parameter can limitate the integral action If 100 NO integral time limitation occour IMPORTANT Generally a proportion must be maintained between integral t
41. g 50 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Device master section Device Function Number First Last CRC address code of bytes data data read byte byte 1 byte 1 byte 1l byte 1 byte 1 byte MSB LSB Example Read 2 bits from the bit with address 2 AL1 and AL2 status of the controller with the address 2 Master device section Device Function Address of Number of bit to CRC address code the first bit be read max 16 02 01 00 02 00 02 1C 38 Device master section Device Function Number of First data byte CRC address code bytes read 02 01 01 11 91 CO The reply tell us that the coil with address 2 is active value 1 so the ALI ON and the coil with address 3 is NOT active value 0 so the AL2 OFF Excluding the first 2 bits the others bit are not importants It is possible read up to 16 bit togheters 16 2 Read N registers function code 03 or 04 This function enables the user to obtain the vaues of the registers of the addressed device These registers store the numerical values of the parameters and variables of the controller Master device section Device Function Address of Number of CRC address code first register register to be read 03 04 max 16 1 byte 1 byte MSB LSB MSB LSB MSB LSB Device master
42. ime Ti and derivative time Td so that Td takes the value of a quarter of the value of Ti In other words Td Ti 4 example Ti 240 Td 60 Therefore the controller output will vary between 0 and 100 as a result of the sum of the Proportional Integral and Derivative actions r 1 Cycle time 1 100 seconds A controller with a modulated output doses the amount of power supplied to the process between 096 and 10096 As a modulated output there might be Output modulated by pulses When it is a question of dosing the power supplied to the process with a device such as a relay or a solid status relay it is achieved by varying a connection time on a fixed cycle which in the controller is configured by this parameter f For example with a 30 second output cycle the power delivered to the process can be dosed between 096 and 10096 in fractions of 0 3 seconds 30 sec 100 See the following table supposing a cycle of 30 seconds To give the the output must and Total cycle process be active for deactivated seconds for 1096 power 3 seconds 27 seconds 3427230 2596 power 7 5 seconds 22 5 seconds 7 5 22 5 30 50 power 15 seconds 15 seconds 15 15 30 80 power 24 seconds 6 seconds 2446 230 10096 power 30 seconds 0 seconds 3040230 there is no disconnection of the output This means that every 30 seconds the controller activates the output but depending o
43. ital input functions selection SLA 0000 No function liked to digital input SLA 0001 Swich from SV and SP2 Contact close the second set point SP2 is active Contact open the main SV is active 0010 Automatic manual regulation switch Contact closed manual regulation with start output 0 Contact open automatic regulation This functionality it s valid only when the parameter SL8 Xx1x SLA 0011 Keyboard lock Contact close keyboard lock Contact open the user can change the parameters by keyboard SLA 5L b Enable Ramp set point SLB 1xxx Set point ramp enabled SLB Oxxx Set point ramp disabled See also Chapter 11 11 11 8 Level 4 parameters description 5PHSPL For thermocouple and RTD input sensor these parameters are the higher SPH and lower SPL set point limitation Pag 39 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER For linear input signal these parameters are either the set point limitation but also the maximum and minimum linearization values For example with 0 10Volt input sensor and SPL 0 SPH 1000 so when the input signal will be 0 over PV display will be show 0 when the input signal will be 5V over PV display will be show 500 when the input signal will be 10V over PV display will be show 1000 d P Decimal point With this parameter the user can select the decimal point position For thermocouple and RTD input sensor the value can change from 0 to 1 fro li
44. lve the master which controls the line and one slave at a time except for broadcast messages but these are not implemented in the Ch series firmware To identify the target of the query the first byte contains the numerical address of the desired slave Each slave has a unique address number which uniquely identifies it Legal addresses run from 1 to 247 while 0 which cannot be assigned to a slave at the head of a message identifies the message as broadcast directed at all slaves at the same time Only messages which do not require a response to complete may be transmitted as broadcast in other words only assignments Function code The second character of the message identifies the function to be executed to which the slave responds with the same code to indicate that the function has been executed The Evo Ser system implements a subset of Modbus functions including Modbus function code Function 01 Read Coil status 02 Read Input Status 03 Read Holding register 04 Read Input register 05 Force single Coil 06 Preset single register 07 Read Status In the CH series devices functions 01 and 02 are operatively identical and interchangeable as are functions 03 and 04 15 4 CRC16 The CRC field is the last in the section and allows the master and the devices to detect transmission errors Occasionally due to electrical noise or interferences of another kind some modification may be caused i
45. mperature measurement see Programmation parameters table 5L 3 Reserved parameter 5L 45L 55 L T Alarms parameters see Alarm description 5L b Direct reverse action selection analog output offset selection see Programmation parameters table SL6 xxx0 t Direct action SL6 xxx1 t Reverse action Reverse action Direct action U 100 U 0 Pag 38 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Ofsset output selection SL6 011x Regulation output 0 20mA 0 10Volt SL6 010x t Regulation output 4 20mA 2 10Volt Type of output read only SL6 x0xx t Regulation output relay or logic 0 15Vcc SL6 x1xx t Regulation output continuous Volt o mA 5L B Manual regulation selection Enable serial interface SL8 Oxxx When the instrument can switch on manual mode the manual output at the power on is always 096 SL8 1xxx When the instrument can switch on manual mode the manual output at the power on is the last manual output set before power off SL8 xxOx The instrument regulation it s only automatic SL8 xx1x The user can select by M A key either regulation manual or automatic On manual mode will be the user to set the right output to achieve the set point For more infromation see Auto Man and Man Auto regulation swicth SL8 xOxx Serial communication disabled SL8 x1xx Serial communication enabled the instrument can be integrate in a modbus network 5 L R Dig
46. n the message while it is being transmitted CRC control of errors ensures that the receiver devices or the master will not perform incorrect actions due to an accidental modification of the message Pag 47 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER The CH controller does NOT send any reply when it detects a CRC error in the section received Stop bits and parity bits are not considered in calculating the CRC Only the data bits The sequence for the CRC calculation is described in the following 1 Load a 16 bit register at 1 s 2 Perform an exclusive OR of the first 8 bits received with the high byte of the register saving the result in the register 3 Move the register one bit to the right 4 a If the displaced bit is a 1 carry out an exclusive OR of the value of 1010 0000 0000 0001 with the content of the register and save it in the register 4 b If the displaced bit is a 0 return to step 3 5 Repeat steps 3 and 4 to 8 bit displacements 6 Carry out an exclusive OR of the following byte of the section with the 16 bit register 7 Repeat steps 3 to 6 until all of the bytes of the section have been processed 8 The content of the 16 bit register is the CRC which is added to the message with the most significant bit first 15 4 1 CRC16 Visual Basic example Function CRC16 Stringa As String As String Dim N As Integer I As Integer NByte As Integer Dim CRC As Long a As Byte Dim Buffer As Strin
47. n the percentage that it should deliver to the process it will take more or less time to carry out the disconnection The cycle time it s a valid parameter only for the relay or logic output for relay output we suggest to set values high than 20 seconds to increase the contact relay life for logic output we suggest to set this parameter 1 seconds to achieve best regulation di F Deviation of the indication with respect to the read value of the variable For instance if the instrument takes a reading of 200 and di F 20 the value of the measurement will be 220 200 20 Pag 37 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER Ir i LL Uv Details of lock levels 0000 No lock 0001 Only SV and alarms can be set 0010 Only setting parameters other than alarms can be set 0011 Only SV can be set 0100 Only setting parameters other than SV can be set 0101 Only alarms can be set 0110 Only setting parameters other than SV ans alarms ca be set 0111 Lock of all parameters 1000 with Cod parameter can enable the access to any programmation parameter level see Programmation parameters table Table B Note also when Lock is gt 0 all parameters can be showed the lock it s relative only to setting values 11 7 Level 3 parameters description P 5 ch Input sensor selection see Programmation parameters table 5 L e Unit of te
48. near input signal the decimal point can be changed from 0 to 3 0 H ON OFF Hysteresis control See ON OFF regulation For thermocouple and RTD input sensor this parameter it s always on tenth degree xxx x AHI AH Threshold alarms hysteresis See Alarms description For thermocouple and RTD input sensor this parameter it s always on tenth degree xxx x r RI P Autotuning Set point 96 See Level 2 parameter description d F Filter Active only when PV value it s near SV value 11 9 Level 5 parameters description Po 6 PID output offset This parameter add a fixed offset to regulation output Any time the user change this parameter have to power off then power on the instrument to see the effect 0 P L Regulation output limitation This parameter clamp the maximum output value either on automatic or manual regulation H d d Modbus serial address Any modbus instrument have to be a different address over network 0 means that the instrument don t communicate Serial communication OFF bP 5 Baud rate bit seconds Any network modbus instrument could have the same baud rate For the possible baud rate see table on Menu level 5 bi Parity bit The user can select from parity bit as none odd even Any network modbus instrument could have to the same parity bit Pag 40 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER i n i Modbus sync time milli Seconds elapsed time from the master
49. nput or SL1 1101 for 4 20mA input Pag 14 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 4 6 4 20mA linear input for 2 wires transmitters 24Vcc 2 wires 4 20mA transmitter On level 3 ment set SL1 1101 for 4 20mA input sensor ATTENTION The power supply for 2 wires transmitter is 24Vcc 15 max 25mA This power supply is short circuit protected 4 7 Relay out put e 4 NO d 5 NC 6 Max 5A 250Vca Note to increase the relay life it s well advised to set the parameter Cycle time higher than 10 seconds If you use a load higher than 5 you must use an external relay 4 8 Servovalve output NO Pry CLOSE 5 VALVE c es 4 p OPEN VALVE c 5 The 2 SPST relay are inter blocked only one relay a time will be active Maximum load for any relay 3A 9250Vac Note The valve control will be available from next firmware version Pag 15 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 4 9 Logic output for static relay Output 15Vcc 20 max 35mA for static relay command Note to have a best regulation it s well advised to set the parameter Cycle time like 1 second The Logic output terminals 5 and 6 is shor circuit protected Note for the hardware version 1 0 the maximum supply current is 12mA 4 10 mA continuous out put Maximum load 500 Q Short circuit protected The offset selection 0 or 4 20mA have to be made
50. nt parameters are stored in a non volatile memory EEprom Control Type P P I P I D ON OFF The user can exclude the derivative and integral action Servovalve control Regulation Heating or Cooling regulation Certification CE Rohs Note 2 on Hardare version 1 0 the maximum supply current is 12mA Pag 59 ITALC OPPIE SENSORI s r l CONTENTS 1 Warning 1 1 Ordering code 2 Installation 2 1 CH102 Dimensions and cut out 2 2 CH402 Dimensions and cut out 2 2 Mounting procedures 2 3 Instrument unplugging 3 Environmental ratings 3 1 Mounting cautions 4 Wiring 4 1 CH102 terminal configuration MODEL S 4 2 CH402 terminal configuration MODEL S 4 3 Thermocouple input 4 4 Resistance termometer input 4 4 1 Input probe setting Pt100 Pt1000 4 4 2 Wiring RTD according I EC751 4 5 Linear input signals 4 5 1 0 1 5Volt signal Input 4 5 2 0 2 10Volt signal Input 4 5 3 0 4 20mA linear Input 4 6 4 20mA linear input for 2 wires transmitters 4 7 Relay output 4 8 Servovalve output 4 9 Logic output for static relay 4 10 mA continuous output 4 11 Volt continuous output 4 12 Selection from Volt or mA continuous output 4 12 1 Jumper for Volt continuous output 4 12 2 Jumper for mA continuous output 5 RS485 serial interface 6 Digital input 7 Connectors 19 to 24 on CH402 8 Front panel description 9 Operating environment 9 1 Input type and input range display 9 2 Parameter setting procedure
51. s and high power motors nearby x Avoid power units nearby especially if controlled in phase angle n Keep the low level sensor input wires away from the power lines and the output cables n If this is not achievable use shielded cables on the sensor input with the shield connected to earth n Make sure that the power supply voltage is the same indicated on the instrument x Switch on the power supply only after that all the electrical connections have been completed xa Conduct instrument power wiring so as not to be influenced by noise from the electric equipment power If the instrument may be affected by external noise a noise filter should be used install the noise filter on the panel wich is always grounded and minimize the wiring distance between the noise filter output side and the instrument power terminals a n accordance with the safety regulations the power supply switch shall bring the identification of the relevant instrument The power supply switch shall be easily accessible from the operator To protect the instrument internal circuits use a 1 Amper 250V fuse Hee u P Ne Pag 9 ITALCOPPIE SENSORI s r l 4 1 CH102 terminal configuration MODEL S CH SERIES PROCESS CONTROLLER coat Power supply n Serena 13 NOG atari 2 i 21 48Vac cc 100 240Vac 9 A i FD SI
52. t is on ON OFF control proportional band 0 a write 0 will set the output disactive OFF a write of a value different from 0 will set the output active ON If the master try to write a only read parameter the salve will reply with a modbus error ILLEGAL DATA ADDRESS Pag 56 ITALC OPPIE SENSORI s r l CH SERIES PROCESS CONTROLLER 19 SLx parameters code On Parameters programmation table the parameters from SL1 to SLB are showed in a binary way The binary code should be showed as follwoing CANAN Example change the input sensor to 1 5 Volt SL1 parameter with modbus address 19 The 1 5Volt code is 1011 see programmation parameter table 11 To change the input sensor as 1 5Volt it should be send the value 11 at the address 19 Example set the action as reverse and the regulation output as 4 20mA SL6 parameter modbus address 24 As show on programmation parameter table the reverse action have the code xxx1 the 4 20mA output have the code x10x the the value to set will be 0101 DECIMAL BINARY Pag 57 ITALC OPPIE SENSORI s r l 20 Technical data CH SERIES PROC ESS CONTROLLER Power supply Switching 100 240Vca 50 60Hz Switching 21 48Vca dc Power 7W 100Vca 10W 240Vca consumation AW 21Vca dc 5W 48Vca dc Operating 0 50 C conditions Relative Humidity 45 85 non condensing Altitude Max 2000m Frontal protection IP65 Overvoltage ll
53. tart Example ST 1minut 60seconds PV 12 0 C SV 74 0 C The gradient will be SV PV ST 740 120 60 10 3digits second so the ramp CAN NOT start 12 HW and SW show version To see the Hardware and software version power on the instrument with DOWN key pressed MI I p Vers Software L P H TH Vers Hardware l L M OAT OOUT OSER CAL1 OAL2 d V IKD Pag 42 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 13 Display at error occurrence Err EEprom failure incorrect set data write ecc Action Please contac your reseller blinking OverRange sensor broke Not wired sensor wrong sensor wirement Measured value PV exceeds the high input display gO 9 9 O range limit blinking Action Chek the sensor wirement check the process temperature and check the sensor with a professional calibrator UnderRange wrong sensor wirement LU LJ LJ U Measured value PV exceed the low input display range limit blinking Azione Chek the sensor wirement check the process temperature and check the sensor with a professional calibrator Pag 43 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 14 RS485 serial interface with MODBUS RTU protocol communication The MODBUS RTU or ASCII protocol is a very popular standard for field bus applications it is ideal for reliably and efficiently handling large data flows with numerous variables
54. tory setting is 4 20 mA ouput only for instrument with continuous output Pag 18 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 5 RS485 serial interface accordly to EIA RS485 standard RS485 7x lJ seriaiend TA txrx a Nstrument 1 Converter PC KO 15 TxRx B fig SerialGnd FP oR Al Instrument 2 2119 TxRx B Max 247 devices ji wA 13 seriaiGna 14 TxRx A Last Instrum TxRx B Close loop Res 1209 Use only twisted shield cable On last instrument network put a 1209 resistor between the RS485 lines A and B terminal 14 and 15 To test the serial interface it s available the CH SET kit code SOFT002 the kint include a RS232 RS485 serial converter and the Windows software Conf CH to see and set all instrument parameters it is possible a free download of Conf CH software from web site www italcoppie it The serial interface is galvanic isolated 2 5Kvolt Pag 19 ITALC OPPIE SENSORI s r l CH SERIES PROC ESS CONTROLLER 6 Digital input DIGITAL DIGITAL INPUT INPUT ml 6l ACTIVE l DISACTIVE ATTENTI ON The digital input is galvanic isolated DON T wire any supply at the terminal 16 and 17 this operation may broke the digital input At the terminal 16 and 17 wire a free power contact like mechanical switch and relay contact For all the digital input functions see SLA paramet
55. witch contact point outside the system is locked to keep the heat switched on In any application where physical injury or destruction of equipment might occur we recommend the installation of independent safety equipment with a separate temperature sensor to disable the hetaing circuit in case of overheating The control alarm signal is not designed to function as a protective measure in case of controller failure o o o o CAUTI ON This is a Class A instrument In a domestic environment this instrument may cause radio interference in wich case the user is required to take adequate measures This instrument is protected from electric shock by reinforced insulation So please arrange reinforced insulation to the wire for input signals against the wire for instrument power supply source of power and load as far as possible ITALC OPPIE SENSORI s r l CH SERIES PROCESS CONTROLLER This instrument is manifacured on the assumption that it is used in the condition of being mounted on the instrumentation panel Therefore take the necessary measures on the equipement side mounted with this instrument so that the operator personnel are not accessible to high voltage blocks in this instrument such as power supply terminals Always observe precautions described in this manual Otherwise serious injury or accident may result Conduct all of the wiring in accordance with the local codes and regulations Install a protection d
56. y if the other end must be grounded to reduce disturbance fit a 10nF capacitor 14 3 Capacitive load of the line With very long cables the capacitance of the cable starts to be the dominant factor in power consumption For this reason it is not usually possible to achieve maximum cable run and highest transmission speed in a single installation The following table is a rough guide to the compromise between distance and speed Baud Rate Total max capacitance of cable pF 2 400 200 000 4 800 100 000 9 600 50 000 19 200 25 000 The capacitance of the cable in pF m can be obtained from the manufacturer and is typically between 50pF m for high quality cables e g category 5 and 100pF m Naturally the resistance and inductance of the cable which may be neglected for short cable runs influence the signal level if the cable run is very long It is hard to give general rules since he minimum section depends on the line termination number of connected devices and spacing between them In case of doubt always choose the larger section cable 14 4 Line polarity As per the RS485 422 standard the line connections are indicated as A and B the line may however be marked differently for example HI LO or It is usually assumed that A B correspond respectively to HI LO or but this is not always the case In case of malfunction try swapping the connections even if everything seems to be OK Pag
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