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Tempco TEC-410 Instruction Manual

High limit control microprocessor based limit controller
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Instruction Manual
TEC-410
High Limit Control
Microprocessor Based Limit Controller
Agency Approvals
TEMPCO Electric Heater Corporation
607 N. Central Avenue • Wood Dale, IL 60191-1452 USA
Tel: 630-350-2252 • Toll Free: 800-323-6859
Fax: 630-350-0232 • E-mail: info@tempco.com
Web: www.tempco.com
Manual TEC-410 Revision 8/2008

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  • Page 1 High Limit Control Microprocessor Based Limit Controller Agency Approvals TEMPCO Electric Heater Corporation 607 N. Central Avenue • Wood Dale, IL 60191-1452 USA Tel: 630-350-2252 • Toll Free: 800-323-6859 Fax: 630-350-0232 • E-mail: info@tempco.com Web: www.tempco.com Manual TEC-410 Revision 8/2008...

  • Page 2: Table Of Contents

    Copyright © 2008, Tempco Electric Heater Corporation, all tion of part or all of the product and system. Do not proceed rights reserved. No part of this publication may be repro-...

  • Page 3: Chapter 1 Overview

    Chapter 1 Overview 1–1 General The TEC-410 limit control is an over temperature protec- another option. A variety of alarm functions and alarm tion or a high limit safety device with a latching output that modes can be programmed for a specific application. The...

  • Page 4: Programming Port

    1–3 Programming Port and DIP Switch Figure 1.1 Access Overview Front Rear Terminal Panel The programming port is used for off- line automatic setup and testing proce- 1 2 3 4 dures only. Don't attempt to make any connection to these pins when the unit Access Hole is actively being used in a control appli- The programming port is used to connect to SNA12A...
  • Page 5 Lock Lower Display, to display set point Lock value, parameter value etc. Status TEMPCO Indicator TEC-410 4 Buttons for ease of control setup and set point adjustment. Limit Control Table 1.2 Display Form of Characters : Indicates Abstract Characters How to display a 5-digit number: For a number with a decimal point, the display will be shifted one digit to the right: -199.99 will be displayed as -199.9, 4553.6 will be displayed as 4553...

  • Page 6: Figure 1.3 Power Up Sequence

    Power Up Sequence Lock All segments of display and indicators are left off for 0.5 second. TEMPCO LIMIT CONTROL LIMIT CONTROL TEC-410 All segments of display and indicators are lit Lock for 1.5 second. TEMPCO LIMIT CONTROL LIMIT CONTROL TEC-410...
  • Page 7 Lock TEMPCO LIMIT CONTROL LIMIT CONTROL TEC-410 Display Date Code for 1.5 seconds.The example shows Year 2006 (6), Month February (2), Date 25th. This means that the product is produced on February 25th, 2006. Note that the month code A is for October, B is for November and C is for December.

  • Page 8: Menu Overview

    1–5 Menu Overview Setup Mode Press Press for 2 sec. for 4 sec. PV Value Calibration Mode SP1 or SAFE Input type INPT High limit HSP1 Value UNIT Process unit setpoint 1 __ __ __ __ Display resolution RESO value Low scale value for linear IN.LO input...

  • Page 9: Menu Overview

    1–6 Limit Control Operation LOW LIMIT OPERATION HIGH LIMIT OPERATION If Lo. is selected for OUT1, the unit will perform low If Hi. is selected for OUT1, the unit will perform limit control. When power is applied the OUT1 relay is high limit control.

  • Page 10: Parameter Descriptions

    1–7 Parameter Descriptions Parameter Parameter Description Default Range Notation (Refer to Page:) Value HSP1 100.0°C Low: HSP.L High: HSP.H High Limit Set point 1 (212.0°F) HSP1 0.0°C LSP1 Low Limit Set point 1 Low: LSP.L High: LSP.H (32.0°F) LSP1 90.0°C Set point 2 Value for (194.0°F) Low: -19999...
  • Page 11 Parameter Parameter Description Default Range Notation (Refer to Page:) Value O1.HY Output 1 Hysteresis Low: 0.1 High: 10.0°C (18.0°F) Value O1.HY HSP.L 0.0°C Low: -19999 High: HSP.H Lower Limit of HSP1 (32.0°F) HSP.L HSP.H 1000.0°C Upper Limit of HSP1 Low: HSP.L High: 45536 (1832.0°F) HSP.H...
  • Page 12 Parameter Parameter Description Default Range Notation (Refer to Page:) Value 6) P.VH.A : Process value high alarm AL.FN Alarm Function 7) P.VL.A : Process value low alarm AL.FN 6) NORM : Normal alarm action AL.MD Alarm mode 7) LTch : Latching alarm action AL.MD AL.HY Alarm hystersis value...

  • Page 13: Chapter 2 Installation

    Chapter 2 Installation Dangerous voltages capable of causing death are 2–1 Unpacking sometimes present in this instrument. Before instal- Upon receipt of the shipment, remove the unit from the car- lation or beginning any troubleshooting procedures, the ton and inspect the unit for any shipping damage. power to all equipment must be switched off and isolated.

  • Page 14: Power Wiring

    2–4 Power Wiring Fuse The controller is designed to operate at 250 VAC or 11–26VAC/VDC to 90–250VAC. Check that the 26 VAC / VDC installation voltage corresponds to the power rating indicated on the product label before connecting power to the controller. Near the controller a fuse and a switch rated at 2A/250VAC should be equipped as shown in Figure 2-4.

  • Page 15: Rtd Input Wiring

    2-7 RTD Input Wiring 2–8 Linear DC Input Wiring The RTD connections are shown in figure 2-6, DC Linear voltage and linear current connections with the compensating lead connected to terminal are shown in figure 2-7 and 2-8. 19. For two-wire RTD inputs, terminals 19 and 20 should be jumpered.

  • Page 16: Event Input Wiring

    2–9 Event Input Wiring 2–10 Output 1 Wiring 120V/240V Load Mains Supply Max. 2A Resistive To Controller Output Open Collector Input Relay or Triac — Output Direct Drive Figure 2.10 Output 1 Wiring 120V/240V Contactor Mains Supply To Controller Switch Input Output Three Three...

  • Page 17: Output 2 Wiring

    2–11 Output 2 Wiring Max. 2A Resistive Load 120V/240V Mains Supply Relay or Triac Output Direct Drive Figure 2.11 Output 2 Wiring 120V/240V Mains Supply Three Phase Heater Power No Fuse Breaker Contactor Three Phase Relay or Triac Delta Output to Drive Heater Contactor Load...

  • Page 18: Rs-485

    2–12 RS-485 RS-485 to RS-232 network adaptor TE99001 or TE99002 RS-232 Twisted-Pair Wire Max. 247 units can be linked Figure 2.12 RS-485 Wiring Terminator 220 ohms/0.5W 2–13 RS-232 To DTE (PC) RS-232 Port 1 DCD 2 RD 3 TD 4 DTR 5 GND 9-pin 6 DSR...

  • Page 19: Chapter 3 Programming

    Chapter 3 Programming 3–1 Process Input Press for 4 seconds and release to enter the setup menu. How to use IN.LO and IN.HI: Press to select parameter. The display will indicate the If 4–20mA is selected for INPT, SL specifies the input sig- parameter symbol and the value (or selection) for that nal low (i.e., 4mA), SH specifies the input signal high (i.e., parameter.

  • Page 20: Set Point Range

    In certain applications the process value is too unstable to be read. To improve this, a programmable low pass filter is incorporated in the TEC-410. This is a first order filter with the time constant speci- fied by the FILT parameter which is found in the setup menu. The default value of SHIF is set at 0.5 seconds before the unit is shipped.

  • Page 21: Process Alarms

    3–6 Process Alarms If Output 2 is designated as an “Alarm Output”, the alarm function, AL.FN can be setup for Process Value High Alarm, PV.H.A or Process Value Low Alarm, PV.L.A. The process alarm sets an absolute trig- ger level. When the process exceeds that absolute trigger level, an alarm occurs. The trigger level is determined by the setting of the set point 2 value SP2 and the alarm hysteresis value AL.HY.

  • Page 22: Data Communication

    3-7 Limit Annunciator If Output 2 is designated as an Limit Annunciator, L_AN the output relay will track the Limit setpoint. If the limit setpoint is or has been reached by the process value, then the limit annunciator will be energized and the OP2 indicator LED will be lit and remain unchanged until the reset key or remote reset input is applied.

  • Page 23: Signal Conditioner Dc Power Supply

    3–10 Data Communication The controller support RTU mode of Modbus protocol for data communication. Other protocols are not available for the TEC-410. Two types of interface are available for data communica- tion. These are RS-485 and RS-232 interface. Since RS-...

  • Page 24: Remote Lock

    3–11 Remote Reset If REST is selected for the Event Input Function EIFN, terminals 16 and 17 will act as remote reset input. Pressing the remote reset button will perform the same function as pressing the RESET key. Refer to section 1-4 for RESET key function. Figure 3.6 Remote Reset Application EI–...

  • Page 25: Chapter 4 Application

    An oven uses a single phase heater to heat the process. A single loop temperature control TEC-9100 is used to regulate the temperature. A TEC-410 limit control is used to protect the process from being overheated. The wiring diagram is shown below.

  • Page 27: Chapter 5 Calibration

    3. A switching network (SWU16K, optional for automatic 5520A calibration) Calibrator TEC-410 4. A calibration fixture equipped with programming units K-TC (optional for automatic calibration) Allow at least 20 minutes The calibration procedure described in the following sec- in still-air room.
  • Page 28 Step 5: Calibrate the RTD reference voltage. Send a 100 ohms signal to terminals 3, 4, and 5 according to figure 5-3. Table 5.3 RTD Calibration 100 ohms Press for at least 4 seconds. The display will blink for a moment.

  • Page 29: Chapter 6 Specifications

    Chapter 6 Specifications Power 90–250VAC, 49–63 Hz, 10VA, 5W maximum Characteristics: 11–26VAC/VDC, 10VA, 5W maximum Accuracy Input Type Range @ 25ºC Impedance -120ºC to 1000ºC Input ±2ºC 2.2 M (-184ºF to 1832ºF) Resolution: 18 bits -200ºC to 1370ºC ±2ºC Sampling rate: 2.2 M 5 times/second (-328ºF to 2498ºF)
  • Page 30 Environmental and Physical Data Communication Interface: RS-232 (1 unit), RS-485 (up to 247 units) Operating temperature: -10°C to 50°C Protocol: Modbus protocol RTU mode Storage temperature: -40°C to 60°C Address: 1–247 Humidity: 0 to 90% RH (non-condensing) Baud Rate: 0.3~38.4 Kbits/sec Altitude: 2000 m maximum Data Bits: 8 bits Pollution: Degree 2...

  • Page 31: Chapter 7 Modbus Communications

    Chapter 7 Modbus Communications 7-1 Functions Supported Only function 03, 06 and 16 are available for this series of controllers. The message formats for each function are described as follows: This chapter specifies the Modbus Communications proto- checking (None, Even or Odd). Baud rate may be set to 300, col as RS-232 or RS-485 interface module is installed.

  • Page 32: Exception Responses

    7-2 Exception Responses If the controller receives a message which contains a corrupted character (parity check error, framing error etc.), or if the CRC16 check fails, the controller ignores the message. However, if the controller receives a syntactically correct message which contains an illegal value, it will send an exception response, consisting of five bytes as follows: slave address +offset function code + exception code + CRC16 Hi +CRC16 Lo Where the offset function code is obtained by adding the function code with 128 (ie.
  • Page 33 Register Parameter Parameter Scale Scale Notes Address Notation High Reserved AOFN Analog output function 65535 OUT2 Output 2 function 65535 Reserved Reserved Reserved COMM Communication function 65535 ADDR Address 65535 BAUD Baud rate 65535 PARI Parity bit 65535 AOLO Analog output scale low AL.FN Alarm function 65535...

  • Page 34: Data Conversion

    *3: The PROG code is defined by 5.XX, where XX denotes the software version number. For example : PROG=5.10 means the product is TEC-410 with software version 10. *4: The least significant bit (LSB) of ALM shows the status of output 1.LSB=1 if output 1 is ON (normal condition).

  • Page 35: Communication Examples

    7-5 Communication Examples: Example 1: Download the default values via the programming port The programming port can perform Modbus communications regardless of the incorrect setup values of address, baud, parity, stop bit, etc. It is especially useful during the first time configuration for the controller. The host must be set with 9600 baud rate, 8 data bits, even parity and 1 stop bit.

  • Page 36: Error Codes

    Example 2: Read the process value (PV) Send the following message to the controller via the COMM port or the programming port : Query Starting Addr. Addr. Func. No. of words CRC16 ( same effect as pressing key ): Example 3: Perform reset function RESET Query Starting Addr.

  • Page 37: Warranty

    Note: Information in this manual was deemed correct at the time of printing. The policy of Tempco is one of continuous development and product improvement, and we reserve the right to modify specifications and designs without prior notice. Not responsible for typographical errors.
  • Page 38 The Electric Heating Element, Temperature Controls and Temperature Sensors Handbook REQUEST YOUR FREE 864 PAGE COPY TODAY! Call (800-323-6859) or E-mail (info@tempco.com) Specify Print Edition, CD-ROM or Both Serving Industry Since 1972 Experience the Advantages of our Diverse and Innovative Products TEMPCO Electric Heater Corporation 607 N.

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