User Manual

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5011654201-SCD1

2007-01-12

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

handy for quick reference.

PRECAUTIONS

DANGER: ELECTRIC SHOCK!

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.

1. Prevent dust or metallic debris from falling into the controller that will cause malfunction.

2. Do NOT modify or disassemble the controller.

3. Do NOT connect the controller to “No Used” terminal.

4. 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.

5. Switch of the power when wiring and changing the input sensor.

6. 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.

MODEL NAME EXPLANATION

SCD SCD series Temperature Controller

1 Controller Position

1: first controller

2: controller in parallel

2 Auxiliary Output

Groups

0: standard, 2 groups output, no auxiliary output

1: 1 group auxiliary output. Not available now.

2: 2 groups auxiliary output. Not available now.

3 4 Optional

00: standard

01: CT input. Not available now.

02: Event input. Not available now.

5 Main Output Type

R: Relay output SPST, 250VAC, 3A

V: Voltage Pulse output 12V +10%~ -20%

C: Current output 4 ~ 20mA

L: Linear Voltage output 0 ~ 10V

 Standard: DC24V input, Relay output for 2

group, RS-485 communication.

Summary of content (10 pages)

PAGE 1
2007-01-12 5011654201-SCD1 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 handy for quick reference. 1 PRECAUTIONS DANGER: ELECTRIC SHOCK! SCD1000 is an OPEN-TYPE Process Control Equipment and SCD2000 is an OPEN-TYPE Process Control Accessory.
PAGE 2
3 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 4 DC24V. Isolated switching power Rated voltage: 90% ~ 110% Rated 24 Vdc, Max. 24 W combined, 3 W + 3 W x no. of SCD2000 (max.
PAGE 3
5 INPUT SENSOR TYPE Input Selection for SCD series: Input Sensor Type 0 ~ 50mV Linear Voltage Input 4 ~ 20mA Linear Current Input 0 ~ 20mA Linear Current Input 0 ~ 10V Linear Voltage Input 0 ~ 5V Linear Voltage Input Platinum RTD (Pt100) Platinum RTD (JPt100) Thermocouple TXK type Thermocouple U type Thermocouple L type Thermocouple B type Thermocouple S type Thermocouple R type Thermocouple N type Thermocouple E type Thermocouple T type Thermocouple J type Thermocouple K type Register Value 17 16 15 14
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Dual Output Control: Dead band Heating hysteresis Cooling hysteresis ON Heating Cooling OFF PV Set point Figure 4. ON-OFF control of dual loop output Output Heating Dead band:dead band width:positive Output Cooling Heating PV 0 Dead band:dead band width:negative Cooling 0 Set Point Figure 5: PID control, Dead band is positive PV Set Point Figure 6: PID control, Dead band is negative Description of Function and Parameters Setting: PID program controlled by 8 patterns (Pattern No.
PAGE 5
Output Output Output slope is negative 10V or 20mA 0V or 4mA 10V or 20mA PV PV Low Output slope is positive PV 0V or 4mA 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.
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7 LED DISPLAY 1. If the power supply is normal, POWER LED will be on. 2. 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. 3. When the control is executing, RUN LED will be on. 4. When errors occur during the input, memory, or communication, ERROR LED will be on. 5.
PAGE 7
Address Setting 1000H Content Process value (PV) 1001H 1002H 1003H 0 6000 -200 Set point (SV) Upper-limit of temperature range Lower-limit of temperature range Input temperature sensor type 1004H 12 1005H 0 1007H 4 1008H 4 1009H 100AH 100BH 100CH 476 260 41 0 100DH 0 100EH 100 100FH 0 1010H 0 1011H 0 1012H 0 1013H 0 1014H 0 1015H 0 1016H 0 1st group of Heating/Cooling control cycle 2nd group of Heating/Cooling control cycle PB Proportional band Ti Integral time Td Deriv
PAGE 8
Address Setting 102AH 102CH Explanation detail b1:ALM2, b2:°C, b3:°F, b4: ALM1, b5: O2, b6:O1, b7: AT Read/Write status 0 102EH 102FH 1030H 1032H Content Setting of positive/negative proportional output 0: positive, 1: negative LED status 0 1033H 1034H 1035H 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 1037H 1000 Upper-limit of proportiona
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6. 7.
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RTU Mode: To Read Instruction Machine address 01H 01H Instruction 03H 01H 10H 08H Starting address of reading data 00H 10H 00H 00H To read data length (word/bit) 02H 09H CRC low byte CRC high byte C0H BBH CBH A9H To Read Response To Write Response To Write Instruction Message Message Machine Machine Machine 01H 01H 01H 01H 01H 01H address address address Instruction 03H 01H Instruction 06H 05H Instruction 06H 05H To write 10H 08H 10H 08H Response data To write data 04H 02H data length (byte) address 0