Mitsubishi Electric LE-40MT Series Handbook
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Mitsubishi Electric LE-40MT Series Handbook

Mitsubishi Electric LE-40MT Series Handbook

Tension controller
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Transition from LE-40MT Series, LE-30CTN(A) to
LE7-40GU-L Handbook

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Summary of Contents for Mitsubishi Electric LE-40MT Series

  • Page 1 Transition from LE-40MT Series, LE-30CTN(A) to LE7-40GU-L Handbook...

  • Page 3: Safety Precautions

    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 in order to handle the product correctly. This manual classifies the safety precautions into two categories: [ WARNING] and [ CAUTION].
  • Page 4 [INSTALLATION PRECAUTIONS] WARNING ● Make sure to cut off all phases of the power supply externally before attempting installation or wiring work. Failure to do so may cause electric shock or damage to the product. ● Use the product within the generic environment specifications described in LE7-40GU-L APPLICATION MANUAL (SH-170022ENG).
  • Page 5 [WIRING PRECAUTIONS] WARNING ● Make sure to cut off all phases of the power supply externally before attempting installation or wiring work. Failure to do so may cause electric shock or damage to the product. ● Make sure to properly wire to the terminal block (Spring clamp type) in accordance with the following precautions.
  • Page 6 ● Do not disassemble or modify the product. Doing so may cause fire, equipment failures, or malfunctions. *For repair, contact your local Mitsubishi Electric representative. ● Turn off the power to the tension controller before connecting or disconnecting any extension cable.

  • Page 7: Introduction

    • Since the examples indicated by this manual, technical bulletin, catalog, etc. are used as a reference, please use it after confirming the function and safety of the equipment and system. Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples.

  • Page 8: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ..............1 INTRODUCTION .

  • Page 10: Relevant Manuals

    RELEVANT MANUALS Manual name <Manual number> Description LE7-40GU-L APPLICATION MANUAL How to handle, install and set the tension controller LE7-40GU-L <SH-170022ENG> LE-40MTA-E INSTRUCTION MANUAL How to handle, install and set the tension controller LE-40MTA-E <JZ990D30601> LE-40MTB-E INSTRUCTION MANUAL How to handle, install and set the tension controller LE-40MTB-E <JZ990D30801>...

  • Page 11: Chapter 1 Outline

    OUTLINE Request to Customers Selection other than the recommended models may be possible depending on the usage situation of your system. Please select a model after checking the specifications and scope of your existing system. Recommended Alternative Models The recommended alternative models are listed below. Model currently used Recommended alternative Panel cut compatibility...

  • Page 12: Chapter 2 Transition From Le-40Mta, B(-E) To Le7-40Gu-L

    TRANSITION FROM LE-40MTA, B(-E) TO LE7- 40GU-L Differences The differences between LE-40MTA, B(-E) and LE7-40GU-L are listed below. Item name LE-40MTA(-E) LE-40MTB(-E) LE7-40GU-L Outer dimensions 156(H)246(W)156.5(D) mm 156(H)246(W)156.5(D) mm 105(H)170(W)125(D) mm Setting method Key+Dial Dial+Touch panel 202-line characters 202-line characters 320128 dots Output for powder 4.0 A max.

  • Page 13: Comparison Of I/O Terminal Blocks

    Comparison of I/O Terminal Blocks Perform wiring by referring to the comparison between the I/O terminal blocks of LE-40MTA, B(-E) and LE7-40GU-L. For the wiring method, refer to the following. LE7-40GU-L APPLICATION MANUAL Item name LE-40MTA, B(-E) LE7-40GU-L Function Terminal Specifications Terminal Specifications...
  • Page 14 Item name LE-40MTA, B(-E) LE7-40GU-L Function Terminal Specifications Terminal Specifications Tension Input Left Tension detector input Left Tension detector input detector Connect the lead wires GR=green (blue) and • Input range switchable WH=white. (1) -150 to +150 mV DC (LX tension detector) Right Right resolution: Approx.
  • Page 15 Tension control output for powder clutch/brake The rated current of LE-40MTA and LE-40MTB(-E) is 4.0 A, and the rated current of LE7-40GU-L is 2.7 A. When the powder clutch whose rated current exceed 2.7 A is used, an amplifier for clutch (separately sold) is necessary. Control output signal When "powder"...

  • Page 16: Comparison Between Optional Terminal Blocks

    Comparison Between Optional Terminal Blocks Perform wiring by referring to the comparison between the I/O terminal blocks of LE-40MD and LE7-DCA. For the wiring method, refer to the following. LE7-40GU-L APPLICATION MANUAL LE7-DCA APPLICATION MANUAL Item name LE-40MTB(-E) (LE-40MD) LE7-40GU-L (LE7-DCA) Function LE-40MD Function...
  • Page 17 Power output While the sensor power supply output of the LE-40MD is 24 V DC, the specification has been changed to 12 V DC for LE7- DCA. Since the power supply voltage specifications of many rotary encoders feature dual system of 24 V DC and 12 V DC, the sensor can often be used as it is after replacement.

  • Page 18: Chapter 3 Transition From Le-30Ctn(A) To Le7-40Gu-L

    TRANSITION FROM LE-30CTN(A) TO LE7- 40GU-L Differences The differences between LE-30CTN(A) and LE7-40GU-L are listed below. Item name LE-30CTN(A) LE7-40GU-L Outer dimensions 156246156.5 mm 105170125 mm Setting method Dial Dial+Touch panel 12864 dot 320128 dot Output for powder 3.0 A max. 2.7 A max.

  • Page 19: Comparison Of I/O Terminal Blocks

    Comparison of I/O Terminal Blocks Perform wiring by referring to the comparison between the I/O terminal blocks of LE-30CTN(A) and LE7-40GU-L. For the wiring method, refer to the following. LE7-40GU-L APPLICATION MANUAL Item name LE-30CTN(A) LE7-40GU-L Function Terminal Specifications Terminal Specifications Power Input...
  • Page 20 Item name LE-30CTN(A) LE7-40GU-L Function Terminal Specifications Terminal Specifications Tension Input Left Connect the lead wires GR=green (blue) and Left Tension detector input detector WH=white of the tension detector inputs. • Input range switchable When only the detector on one side is used, it is (1) -150 to +150 mV DC (LX tension detector) Right Right...
  • Page 21 Tension detector input The tension detector that has been used with the LE-30CTN(A) can be used as it is. A strain gauge type load sensor can also be used with the LE7-40GU-L. Analog input When it is used for general-purpose input, function assignment is required (same as the LE-30CTN(A)). The voltage range can also be switched in the LE-40GU.

  • Page 22: Chapter 4 Differences In Sequence Operation

    DIFFERENCES IN SEQUENCE OPERATION This section describes the differences in sequence operation. Stall Memory Stall memory is a function to memorize the control output at the moment when the operation/stop command has changed from operation to stop. In unwinding and winding control, in case the system stops while the material on the reel shaft is not completely finished, the control output at the moment the system makes a stop is memorized.
  • Page 23 When the stall memory reset input is used with LE-40MTA, B(-E) In the LE7-40GU-L, the response of the automatic control output is faster than the LE- 40MTA, B(-E), and therefore there is no problem if it is used with only stall setting without using stall memory (when the stall memory reset input is short-circuited in the LE-40MTA, B(-E), the contacts of stall memory need not be short-circuited in the LE7-40GU-L).

  • Page 24: Output Gain Function

    Output Gain Function The output gain function mitigates the tension fluctuation due to the moment of inertia of the reel shaft materials during acceleration or deceleration. In the LE-40MTA, B(-E), since the control output changes either when the gain input changes from OFF to ON or ON to OFF, tension fluctuation may occur when the gain input changes from ON to OFF.

  • Page 25: Chapter 5 Differences In Flow At Machine Startup Adjustment

    DIFFERENCES IN FLOW AT MACHINE STARTUP ADJUSTMENT This section describes the differences in flow at machine startup adjustment. Differences in Operation Flow An operation flowchart is shown below. There is no difference in the basic operation flow till the test operation among LE- 40MTA, B(-E), LE-30CTN(A), and LE7-40GU-L.

  • Page 26: Protection Functions

    Parameter Setting location LE-40MTA, B(-E) LE7-40GU-L Language selection Unavailable Initial setting/adjustment Control mode selection* Unavailable Initial setting/adjustment Maximum diameter/minimum diameter Engineer Initial setting/adjustment Operation mode selection Unavailable Initial Setting Velocity electronic gear ratio Engineer Initial setting/adjustment *1 For the setting of the actuator, set the output voltage range on LE7-40GU-L screen number 452 "Control output mode selection". *2 The control mode selection is the function to switch the control method between open loop control and feedback control.

  • Page 27: Revisions

    First edition 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 28: Trademarks

    TRADEMARKS Ethernet is a registered trademark of Fuji Xerox Co., Ltd. in Japan. The company names, system names and product names mentioned in this manual are either registered trademarks or trademarks of their respective companies.
  • Page 30 Manual number: SH(NA)-170028ENG-A When exported from Japan, this manual does not require application to the Ministry of Economy, Trade and Industry for service transaction permission. HEAD OFFICE: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Specifications are subject to change without notice.

This manual is also suitable for:

Le-30ctnLe-30ctnaLe7-40gu-l

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