SCD
Contents
1. 200 500 C 328 932 F 200 850 C 328 1562 F 100 1800 C 212 3272 F 0 1700 C 32 3092 F 0 1700 C 32 3092 F 200 1300 C 328 2372 F 0 600 C 32 1112 F Thermocouple T type 200 400 C 328 752 F Thermocouple J type 100 1200 C 148 2192 F Thermocouple K type 0 200 1300 C 328 2372 F Note 1 An internal precision resistor for the current input is built in please refer to item 12 How To Set Up Current Input Note 2 Factory setting PT100 input It is adjustable for linear input and feedback ranges The default range of input feedbadk is 999 9 999 For example when a 0 20mA analog input is selected as the input temperature sensor type 999 indicates OMA and 9 999 indicates 20mA If the user changes the input range to 0 2 000 0 indicates OmA and 2 000 indicates 20mA One display scale equals to 0 01mA 6 OUTPUT FUNCTION Output control for SCD is selective Control output heating cooling Alarm output or Retransmission output Thermocouple U type Thermocouple L type Thermocouple B type Thermocouple S type Thermocouple R type Thermocouple N type Thermocouple E type NM WROD N Oo oO Control Output Temperature can individually be controlled by two groups of outputs cooling forward or Pare reverse When Dual Loop output control is used two output controls shall be cra bt for cooling laaa or heating T If two con2. LYE wn SCD1000 2000 Temperature Controller Instruction Sheet Thank you very much for choosing Love Controls SCD Series Temperature Controller Please read this instruction sheet before using your SCD series to ensure proper operation and please keep this instruction sheet i for quick reference a1 PRECAUTIONS A DANGER ELECTRIC SHOCK A SCD1000 is an OPEN TYPE Process Control Equipment and SCD2000 is an OPEN TYPE Process Control Accessory These devices are microprocessor based temperature regulating controllers which may be provided with normally closed and or open contacts They are intended for installation completely within an overall panel or process control enclosure and are used in heating or cooling applications Please Install within a separate UL Listed enclosure only keep the enclosure away from airbome dust or high humidity and prevent electric shock or sudden shock Also it is equipped with protective methods such as some special tool or key to open the enclosure so as to avoid the hazard to users or any damage to the controller Prevent dust or metallic debris from falling into the controller that will cause malfunction Do NOT modify or disassemble the controller Do NOT connect the controller to No Used terminal Do not install and or use the controller in places of a dust or corrosive gases and liquid b high humidity and high radiation c vibration and shock d high voltage and high frequency Switch of t
3. Sensor Type and Temperature Range for detail 0 PID 1 ON OFF 2 manual tuning 3 PID program control 0 99 0 0 5 sec 0 99 0 0 5 sec it will be invalid when both groups are control output at the same time 1 9 999 unit 0 1 degree analog input 1EU 0 9 999 0 9 999 0 1 000 unit 0 1 0 1 000 unit 0 1 1 9 999 unit 0 01 999 9 999 unit 0 1 degree or 1EU 0 9 999 unit 0 1 degree or 1EU 0 9 999 unit 0 1 degree or 1EU Unit 0 1 write is valid only under manual control mode Unit 0 1 write is valid only under manual control mode 1 scale 2 8 u A 1 3mV 1 scale 2 8 u A 1 3mV 999 999 unit 0 1 degree or 1EU Please see the contents of the Alarm Outputs for detail Please see the contents of the Alarm Outputs for detail Auto setting ban of communication 0 auto setting of communication 1 Please see the contents of the Alarm Outputs for detail Please see the contents of the Alarm Outputs for detail Please see the contents of the Alarm Outputs for detail Please see the contents of the Alarm Outputs for Address 102AH 102CH 102EH 102FH 1030H 1032H 1033H 1034H 1035H 1037H 1038H 1040H 1043H 1050H 1053H 1060H 1063H 1068H 1069H 106AH 106BH 106CH 106DH 106EH 106FH 1070H 1071H 1072H 1073H 1074H 1075H 1076H 2000H 203FH 2080H 20BFH Setting 1000 O90 000
4. display AT bit 6 and Run bit 0 will combine into binary code E PASSWORD PROTECTION The default of password will not function After you write the 4 byte password into a specific communication address the password function will be enabled There are three levels of password protection 1 Level 1 only LED status settings and input values can be read via communication Changes cannot be made 2 Level 2 only LED status settings and input value can be read via communication Settings can be changed 3 Level 3 all the settings can be read via communication Settings and AT adjustment can be changed 4 No password function Once the password is set 106EH 1070H the controller will enter level 1 To enter other levels enter the corresponding passwords in 106BH 106DH see Address and content of Data Register After the power is switched off it will return to level one If you wish to disable the password protection clear all password settings To enable the password protection write in corresponding passwords 106EH 1070H when the password status is disabled To disable password levels specific function address 106EH 1070H shall be written into the intended password settings The password status can be read from 106EH 1070H Statuses of each bit are shown in the table below Bit bO b1 b2 b3 b4 b5 b6 Status Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Unlock locked locked locked Bit 0 refers t
5. reach temperature X after the period of execution time T If the set point is the same as the result of the previous setting it is called Soak program control If not it is called Ramp program control Therefore PID program control is also called Ramp Soak program control The default of step No 0 in this controller is Soak program control The controller will control the temperature PV and reach the set point X and keep the temperature at set point X The period of execution time is time T provided by step No 0 Link Pattern Parameter For example when Bi is set as 2 it indicates that pattern No 2 will be the next to be executed after the execution of pattern No O If itis set to E the program will stop after the current pattern has been executed and the temperature will keep at the set point for the last step Cycle Parameter Additional execution cycle number For example when is set as 2 pattern No 4 should be executed twice Including the original one time of execution the total execution will be three times Actual Step Parameter Number of steps being executed per pattern can be set as 0 7 For example when EEE is set as 2 pattern No 7 will not execute other steps but step 0 to step2 Execution When is set as EEA the program will start to execute in order from step 0 of start pattern When ES is set as EE the program will stop and the control output will be disabled When EA is set as GEG the program will sto
6. 0 O O oO Content Read Write status Setting of positive negative proportional output LED status Software version Start pattern number Remaining time of read execution Remaining time of reading execution step Step number of reading current execution step Executing number of reading current pattern Upper limit of proportional output Lower limit of proportional output Actual step number setting inside the correspond pattern Cycle number of repeating executing pattern 0 7 Link pattern number setting of the current pattern Control execution Stop setting Output 1 control selection Output2 control selection Dismiss level 1 Read write allowed Dismiss level 2 Use level 3 Dismiss level 3 Use level 2 Dismiss level 1 Set password Dismiss level 2 Set password Dismiss level 3 Set password Read Write communication address Read Write communication format Baud rate setting of communication Data length setting of communication Parity bit setting Stop bit setting Pattern 0 7 to set target temperature Pattern 0 2000H 2007H Pattern 0 7 to set execution time Pattern 0 2080H 2087H Explanation detail b1 ALM2 b2 C b3 F b4 ALM1 b5 O2 b6 01 b7 AT 0 positive 1 negative b0 RUN b1 ERR b2 O2 b3 O1 b4 RX b5 TX b6 AT V1 00 indicates 0x100 0 7 Unit second Unit minute 0 7 0 7 0 100 max analog output is upper limit unit 0 1 0 100 max analog o
7. Read Instruction Starting word Machine address 1 Machine address 0 Instruction 1 Instruction 0 To read data Staring word address To read data length Word length word bit LRC1 check LRC 0 check Ending word 1 Ending word 0 LRC Check To Read Response To Write Instruction To Write Response Message Message me Starting word Starting word Starting word ae Machine salle Machine rae Machine ler oe address 1 0 0 address 1 0 0 address 1 0 0 qo Machine yy Machine yy Machine oy address 0 address 0 address 0 0 Instructioni 0 Instruction 0 Instruction1 0 To sInstructionO 3 1 InstructionO 6 5 InstructionO 6 5 T 0 Response data 0 0 gt O 1 0 8 length byte 4 2 Towritedata 0 8 Towritedata 8 Oo T 0 1 address o TT address 0 T 0 Data content of 1 7 0 T O 0 1000H 081xH PF 0 F 0 F o 0 4 1 Towritedata 3 FP To write data 3 F o o 0 content E 0 content E 0 i 6g Data content of 0 3 o 3 0 1001H E D 0 LRC1 F EB LRC1 FP E A D 0 LRC 0 D F LRC 0 D 3 CR CR LRC1 check oF Ending word 1 CR CR ae word CR CR LF LF LRC 0 check By Ending word 0 LF LF PPRD word LF LF Ending word 1 CR CR Ending word 0 LF LF LRC check is the sum added up from Mach
8. he power when wiring and changing the input sensor Make sure to use compensating wires that match the thermocouple types when extending or connecting the thermocouple wires 7 Shorten the wire when wiring a platinum resistance thermometer RTD to the controller and separate power cable from load wires to prevent interference and conductive influence 8 Make sure power cables and signal devices are installed properly before switching on the power otherwise serious damage may occur 9 Do NOT touch the terminals or repair the controller when the power is switched on to prevent electric shock 10 Wait at least one minute after the power is switched off to allow capacitors to discharge and DO NOT touch any internal circuit within this period 11 Do NOT touch internal terminals no matter power is switched on or off 12 To ensure temperature accuracy keep the controller away from the heating source 2 ET MODEL NAME EXPLANATION SCD 1 2 3 4 5 SCD SCD series Temperature Controller 1 first controller 2 controller in parallel 0 standard 2 groups output no auxiliary output 1 1 group auxiliary output Not available now 2 2 groups auxiliary output Not available now 00 standard 3 4 Optional 01 CT input Not available now 02 Event input Not available now R Relay output SPST 250VAC 3A V Voltage Pulse output 12V 10 20 SJ ie OMS pte C Current output 4 20mA L Linear Voltage output 0 10V gt Standard DC24V
9. ine Address to Data content For example 01H 03H 10H OOH OOH 02H 16H and obtain the complementary of 2 as EA RTU Mode To Read Response To Write Response To Read Instruction To Write Instruction Message Message Machine Machine Machine Machine address 01H 01H nddrese 01H 01H address 01H 01H address 01H 01H Instruction 03H 01H Instruction 03H 01H Instruction 06H 05H Instruction O6H 05H 10H 08H To write 10H 08H 10H O8H 04H 02H data To write data 01H 10H address 01H 10H Starting address of reading data 00H 10H length byte Response data address Toread data length OOH 00H OTH 17H To write 03H FFH o write data 03H FFH word bit 02H 09H F4H 01H content 20H 00H content 20H 00H CRC low byte CoH BBH 03H a DDH 8FH CRS low byte DDH 8FH CRC high byte Gat A9H Data sament Peg CRC high Fo orp CRChigh byte coy ory CRC low byte BBH 77H CRC high byte 15H 88H CRC Cyclical Redundancy Check program example unsigned int reg_crc Oxffff i 0 while length reg_crc RTUDataji i for j 0 j lt 8 j if reg_crc amp 0x01 reg_crc reg_crc gt gt 1 OxA001 else reg_crc reg_crc gt gt 1 return reg_crc 11 INSTALLATION SCD series can be extended up to 8 modules and installed by DIN rail mounting SCD unit 1 N 4 Mounting Panel 2 7 gt n DIN rail S a lt a v t l f3 12 HOW TO SET UP CURRENT INPUT For n
10. input Relay output for 2 group RS 485 communication 1 PON Da 1 Controller Position 2 Auxiliary Output Groups FUNCTION AND SPECIFICATION Power Supply Voltage Range Power consumption Sensor Type Sampling Rate Control Method Output Type Output Function Alarm Function Communication Communication Protocol Internal Connection Vibration Resistance Shock Resistance Ambient Temperature Storage Temperature Altitude Relative Humidity Pollution Degree DC24V Isolated switching power Rated voltage 90 110 Rated 24 Vdc Max 24 W combined 3 W 3 W x no of SCD2000 max 7 connected Thermocouple K J T E N R S B L U TXK Platinum RTD Pt100 JPt100 Linear DC input 0 5V 0 10V 0 20mA 4 20mA 0 50mV Analog input 0 15 sec Thermocouple or Platinum RTD 0 4 sec PID PID program control Manual or ON OFF Relay output SPST Max load 250VAC 3A resistive load Voltage pulse output DC 12V Max output current 40mA Current output DC4 20mA output Load resistance Max 5 00Q Analog voltage output 0 10V Load resistance shall be higher than 1 0009 Control output Alarm output or Retransmission output only for linear voltage and current output as 1 group 12 Alarm mode selections RS 485 digital communication 2 400bps 38 400bps Mod bus communicati
11. it This alarm output operates when PV value is higher than the setting value SV AL H Deviation lower limit This alarm output operates when PV value is lower than the setting value SV AL L Reverse deviation upper and lower limit This alarm output operates when PV value is in the range of the setting value SV AL H and the setting value SV AL L Absolute value upper and lower limit This alarm output operates when PV value is higher than the setting value AL H or lower than the setting value AL L Absolute value upper limit This alarm output operates when PV value is higher than the setting value AL H Absolute value lower limit This alarm output operates when PV value is lower than the setting value AL L Deviation upper and lower limit with standby sequence This alarm output operates when PV value reaches set point SV value and the value is higher than the setting value SV AL H or lower than the setting value SV AL L Deviation upper limit with standby sequence This alarm output operates when PV value reaches set point SV value and the reached value is higher than the setting value SV AL H Deviation lower limit with standby sequence This alarm output operates when PV value reaches the set point SV value and the reached value is lower than the setting value SV AL L Hysteresis upper limit alarm output This alarm output operates if PV value is higher than the setting value SV AL H This alarm output is OFF whe
12. n PV value is lower than the setting value SV AL L Hysteresis lower limit alarm output This alarm output operates if PV value is lower than the setting value SV AL H This alarm output is OFF when PV value is higher than the setting value SV AL L Output slope is positive Alarm Output Function Output is OFF or ON orr A A AL H AL L 1025H will be used When the 2 group output is set to alarm output AL2H 1026H and AL2L 1027H will be used LED DISPLAY 1 If the power supply is normal POWER LED will be on LED will be on after the power is switched on 1 second after the power is on the communication protocol will be displayed and the next second the communication address will be displayed After that LED will all be on to show that the operation is normal When the control is executing RUN LED will be on When errors occur during the input memory or communication ERROR LED will be on When output is enabled the corresponding LED will be on When PID program is in auto tuning parameter AT LED will flash RX LED will flash when receiving communication signals and TX LED will flash when transmitting communication signals Protocol format of LED display when the power is on N NOOR AT TX RX O1 02 Err Run 000 2400bps 001 4800bps Parity 00 None 01 Even 0 ASCIl 0 2 Stop bit 010 9600bps 10 Odd 1 RTU 1 1 Stop bit 011 19200bps 100 38400bps Communication address
13. nt Process value PV Set point SV Upper limit of temperature range Lower limit of temperature range Input temperature sensor type Control method 1st group of Heating Cooling control cycle 2nd group of Heating Cooling control cycle PB Proportional band Ti Integral time Td Derivative time Integration default Proportional control offset error value when Ti 0 COEF setting when Dual Loop output control are used Dead band setting when Dual Loop output control are used Hysteresis setting value of the 1st output group Hysteresis setting value of the 2nd output group Output value read and write of Output 1 Output value read and write of Output 2 Upper limit regulation of analog linear output Lower limit regulation of analog linear output Temperature regulation value Alarm 1 type Alarm 2 type Auto setting communication flag Upper limit alarm 1 AL1H Lower limit alarm 1 AL1L Upper limit alarm 2 AL2H Lower limit alarm 2 AL2L Explanation Temperature unit 0 1 degree Analog input 1EU Following read values happen to errors 8002H Initial process Temperature value is not got yet 8003H Temperature sensor is not connected 8004H Temperature sensor input error 8006H Cannot get temperature value ADC input error 8007H Memory read write error Unit 0 1 degree Analog input 1EU Upper limit ban unit 0 1 degree Lower limit ban unit 0 1 degree Please refer to the contents of the Temperature
14. o no password setting Bit 1 refers to password is set 00 b2 b3 b6 are used for displaying current password status 9 SYNCHRONOUS COMMUNICATION PROTOCOL amp AUTO NUMBER ID FUNCTION By using Auto Number ID function the communication protocol of SCD2000 can be set the same as the one in SCD1000 ID numbers tend to increase 1 Set the auto communication flag to be 1 for SCD1000 communication address 1022H 2 Switch off the controller before connecting it to another SCD2000 After that switch on the power again 3 Communication default 9600bps 7 bits Even 1 stop bit 4 The function will result in additional 3 5 seconds needed for the power to be switched on 10 RS 485 COMMUNICATION 1 Transmission speed supported 2 400 4 800 9 600 19 200 38 400bps 2 Formats 7 N 1 or 8 E 2 or 8 O 2 3 Communication protocol Modbus ASCII or RTU 4 Function code 03H to read the content of register max 8 words 06H to write one word into register 01H to read bits data max 16 bits 05H to write one bit to register 5 Address and Content of Data Register Address 1000H 1001H 1002H 1003H 1004H 1005H 1007H 1008H 1009H 100AH 100BH 100CH 100DH 100EH 100FH 1010H 1011H 1012H 1013H 1014H 1015H 1016H 1020H 1021H 1022H 1024H 1025H 1026H 1027H Setting 6000 200 12 476 40 40 40 40 Conte
15. on protocol support RTU ASCII Provide internal connection terminals to transmit 24V power supply and communication signal 10 to 55Hz 10m s for 10min each in X Y and Z directions Max 300m s 3 times in each 3 axes 6 directions 0 C to 50 C 20 C to 65 C 2 000m or less 35 to 85 RH non condensing Degree 2 PRODUCT PROFILE AND OUTLINE Q 25 2 SCD1000 1 RUN STOP switch 2 Wiring and Model name 3 DIN fix 4 I O terminals 5 LED indicators 6 Extension hole of the extension unit mounting pins 7 Specification label 8 Extension port 9 Extension clip 10 DIN rail RS 485 communication port 12 Extension clip 13 DC power input 2 CD2000 Wiring and Model name DIN rail clip I O terminals LED indicators Extension hole of the extension unit mounting 90 0 90 0 pins Specification label Extension port Extension clip DIN rail Extension port SCOOND OURWNM T D S 3 0 4 5 INPUT SENSOR TYPE Input Selection for SCD series Input Sensor Type Register Value Available Range 0 50mV Linear Voltage Input 17 0 50mV 4 20mA Linear Current Input 16 4 20mA 0 20mA Linear Current Input 15 0 20mA 0 10V Linear Voltage Input 14 0 10V 0 5V Linear Voltage Input 13 0 5V Platinum RTD Pt100 12 200 600 C 328 1112 F Platinum RTD JPt100 11 20 400 C 4 752 F Thermocouple TXK type 10 200 800 C 328 1472 F
16. ormal input For current input 4 20mA 0 20mA JUMPER JUMPER JPI PIN HEADER JPI DEFAULT SETTING PIN HEADER
17. p and the temperature at that time will be controlled at the set point before the program stops Select HEH again and the program will restart and execute from step 0 of start pattern When is set as W the program will hold and the temperature at that time will be controlled at the set point before the program holds Select M4 again and the program will follow the step before hold and start to execute throughout the rest of the time Retransmission Output When the 1 group output of this controller is linear voltage or current output it can be Retransmission that is the output variation corresponding with input For example when read value 0 with input range 0 1000 output will be OmA or OV When read value 1000 output will be 20mA or 10V Output Output Output slope is negative 10V or 20mA 10V or 20mA OV or 4mA PV OV or 4mA PV Low PV High PV Low PV High Figure 7 Retransmission Alarm Output This controller provides 12 types of alarm outputs See table below When PV is higher or lower than SV the alarm output will be enabled SV 0 1 10 11 12 Attention AL H and AL L include AL1H AL2H and AL1L AL2L When the 1 group output is set to alarm output AL1H 1024H and AL1L Alarm Type No Alarm Function Deviation upper and lower limit This alarm output operates when PV value is higher than the setting value SV AL H or lower than the setting value SV AL L Deviation upper lim
18. trol outputs with the same direction are performed only the 1 group of control period is valid Control methods PID control ON OFF control Manual control and PID program control Single output Control Heating Hysteresis rie Hysteresis Heating t ir f costing OFF aa Ly vlom Set Mie se Point Figure1 ON OFF control of single output Output Output 100 100 Cooling Heating 5 i P py 0 a PV Set Point Set Point Figure 2 PID Control Figure 3 PID Control forward cooling control reverse heating control Dual Output Control Dead band Heating hysteresis _Cooling hysteresis ON Heating Cooling OFF T PV Set point Figure 4 ON OFF control of dual loop output Dead band dead Dead band dead Output band width positive Output band width negative Cooling Heating 0 A PV 0 A PV Set Point Set Point Figure 5 PID control Figure 6 PID control Dead band is positive Dead band is negative Description of Function and Parameters Setting PID program controlled by 8 patterns Pattern No 0 7 is supported in SCD series Each pattern contains 8 steps step No 0 7 1 Link Pattern parameter 1 Cycle parameter and 1 Actual Step parameter Start Pattern is in operation mode and is used to set the Start Pattern of PID program control This parameter appears in mode only Steps Including set point X and execution time T the two parameters setting The set point SV should
19. utput is lower limit unit 0 1 0 7 N means the pattern is executed from step from 0 to N 0 199 means the pattern is executed for 1 200 times 0 8 8 means program end 0 7 means the next execution number after completing current pattern 0 Stop 1 execute 2 program end 3 program hold 0 heating 1 cooling 2 alarming 3 proportional output 0 heating 1 cooling 2 alarming Shall be same as level 1 password setting 106E Shall be same as level 2 password setting 106F Shall be same as level 3 password setting 1070 Clear old password before new password setting Clear old password before new password setting Clear old password before new password setting 1 247 RTU 1 ASCII 0 0 4 2400 38400 0 8bit 1 7bit 0 None 1 Even 2 Odd 0 2 stop bit 1 1stop bit Temperature measure unit 0 1 degree Time 0 900 1 minute for each scale 6 Address and Content of Bit Register First bit of reading will put into LSB Write data FFOOH for bit set OOOOH for bit data as O 0811H 0813H 0814H 0815H 0816H Temperature unit display selection 0 F 1 C default AT setting AT setting OFF 0 default AT setting ON 1 Control RUN STOP setting Program hold flag Program stop flag 0 STOP 1 Execute default 1 Program temporary stop 1 Program stop 7 Communication format 01 read bit data 05 write bit data 03 read word 06 write word ASCII Mode To
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