Mitsubishi MELSEC-Q Q68TD-G-H02 User Manual
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Mitsubishi MELSEC-Q Q68TD-G-H02 User Manual

Channel isolated thermocouple input module
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Channel Isolated Thermocouple
Thank you for purchasing the Mitsubishi programmable controller
MELSEC-Q series.
Prior to use, please read this and relevant manuals thorougly to fully
understand the product.
© 2008 MITSUBISHI ELECTRIC CORPORATION
User's Manual
Q68TD-G-H02
MODEL Q68TD-G-H02-U-HW
MODEL
CODE
IB(NA)-0800437-A(0809)MEE
Input Module
(Hardware)
13JY90

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Summary of Contents for Mitsubishi MELSEC-Q Q68TD-G-H02

  • Page 1 Channel Isolated Thermocouple Input Module User’s Manual (Hardware) Q68TD-G-H02 Thank you for purchasing the Mitsubishi programmable controller MELSEC-Q series. Prior to use, please read this and relevant manuals thorougly to fully understand the product. MODEL Q68TD-G-H02-U-HW MODEL 13JY90 CODE IB(NA)-0800437-A(0809)MEE...
  • Page 2 SAFETY PRECAUTIONS (Read these precautions before use.) Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay full attention to safety to handle the product correctly. The instructions given in this manual are concerned with this product. For the safety instructions of the programmable controller system, please read the User’s Manual for the CPU module.
  • Page 3 CAUTION Do not bunch the control wires or communication cables with the main circuit or power wires, or install them close to each other. They should be installed 100 mm (3.94 inch) or more from each other. Not doing so could result in noise that may cause malfunction. [INSTALLATION PRECAUTIONS] CAUTION Use the programmable controller in the environment conditions given in the...
  • Page 4 [WIRING PRECAUTIONS] CAUTION Always ground the shielded cables for the programmable controller. There is a risk of electric shock or malfunction. For wiring and connection, properly press, crimp or solder the connector with the tools specified by the manufactures and attach the connector to the module securely.
  • Page 5 This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual.

  • Page 6: Table Of Contents

    CONTENTS 1. OVERVIEW ....................1 2. PERFORMANCE SPECIFICATIONS ............. 2 3. IMPLEMENTATION AND INSTALLATION............. 5 3.1 Handling Precautions ................5 3.1.1 Installation of module fixing bracket..........6 3.2 Installation Environment ................6 3.3 Restriction of combination use of Q68TD-G-H02 and Q68TD-G-H01..6 4.
  • Page 7 (1) For programmable controller system To configure a system meeting the requirements of the EMC and Low Voltage Diretives when incorporating the Mitsubishi programmable controller (EMC and Low Voltage Directives compliant) into other machinery or equipment, refer to Chapter 9 "EMC AND LOW VOLTAGE DIRECTIVES"...

  • Page 8: Overview

    1. OVERVIEW This manual describes the specifications and part names of type Q68TD-G-H02 Channel Isolated Thermocouple Input Module (hereinafter abbreviated as Q68TD-G-H02) that is used with the MELSEC-Q series CPU module.

  • Page 9: Performance Specifications

    2. PERFORMANCE SPECIFICATIONS The following table shows the performance specifications of the Q68TD- G-H02. (1) List of Performance Specifications Table 2.1 List of performance specifications Item Specifications Number of channels 8 channels Temperature 16-bit signed binary (-2700 to 18200) conversion value Output Scaling value 16-bit signed binary...
  • Page 10 *1 Q68TD-G-H02 needs to be powered on 30 minutes prior to operation for compliance to the specification (accuracy). *2 Calculate the accuracy in the following method. (Accuracy) = (conversion accuracy) + (temperature characteristic) (operating ambient temperature variation) + (cold junction temperature compensation accuracy) An operating ambient temperature variation indicates a deviation of the operating ambient temperature from the range.
  • Page 11 (2) Usable Thermocouples and Conversion Accuracies The following table explains the usable thermocouples and conversion accuracies. Table2.2 Usable thermocouples and conversion accuracies Usable Conversion Accuracy Temperature Characteristic Max. Temperature Measured Temperature Thermo couple (At operating ambient temperature (Per operating ambient Error at Ambient Range*1 Type...

  • Page 12: Implementation And Installation

    3. IMPLEMENTATION AND INSTALLATION 3.1 Handling Precautions (1) Do not drop or give a strong impact to the case. (2) Do not remove the printed-circuit board of the module from the case. Doing so may cause a failure. (3) Be careful to prevent foreign matters such as cutting chips or wire chips from entering the module.

  • Page 13: Installation Of Module Fixing Bracket

    3.1.1 Installation of module fixing bracket After mounting the Q68TD-G-H02 on the base unit, fix the module with the module fixing bracket. POINT Check that the slit, which is third from the Q68TD-G-H02 front, is hooked by the top of the module fixing bracket and then tighten the module fixing screw with the specified torque.

  • Page 14: Part Names

    4. PART NAMES The following explains the part names of the Q68TD-G-H02. Module fixing screw Module fixing bracket (Connector (Connector terminal terminal number) number) Table4.1 Part names Number Name Description Displays the operating status of the Q68TD-G-H02. : Normal operation RUN LED Flashing : During offset/gain setting mode...
  • Page 15 Table4.2 Signal name Terminal Terminal Signal name Signal name number number CH1+ CH1- CH2+ CH2- CH3+ CH3- CH4+ CH4- CH5+ CH5- CH6+ CH6- CH7+ CH7- CH8+ CH8- RTD+ Seen from the front RTDG RTD- of the module *For actual wiring, refer to Section 5.2 External Wiring.

  • Page 16: Wiring

    5. WIRING The following explains the wiring precautions and module connection example. 5.1 Wiring Precautions External wiring that is less susceptible to noise is required as a condition of enabling a highly reliable system and making full use of the capabilities of Q68TD-G-H02.

  • Page 17: External Wiring

    5.2 External Wiring (1) Wiring procedure 1) For wiring, set a relay terminal block to outside. 2) Connect the thermocouple and the compensation conductors to the relay terminal block. 3) When setting the Q68TD-G-H02 to "With cold junction temperature compensation", connect the cold junction temperature compensation resistor (RTD), which is supplied with Q68TD-G-H02, to the relay terminal block.

  • Page 18: Intelligent Function Module Switch Settings

    5.3 Intelligent Function Module Switch Settings (1) Setting item Intelligent function module switch has switches 1 to 5.The setting is executed with 16-bit data. When not setting the intelligent function module switch, the default of switches 1 to 5 is 0. Table 5.1 Intelligent Function Module Switch Settings Setting Item Thermocouple type...

  • Page 19: External Dimensions

    6. EXTERNAL DIMENSIONS 130 (5.12) 47 (1.85) 27.4 (1.08) Unit : mm(inch)
  • Page 20 Warranty Mitsubishi will not be held liable for damage caused by factors found not to be the cause of Mitsubishi; machine damage or lost profits caused by faults in the Mitsubishi products; damage, secondary damage, accident compensation caused by special factors unpredictable by Mitsubishi;...

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