Mitsubishi Electric 800 Series Instruction Manual
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Mitsubishi Electric 800 Series Instruction Manual

Mitsubishi Electric 800 Series Instruction Manual

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INVERTER
INSTRUCTION MANUAL
FR-A8CW
FR-A8SR
FR-A8CU
Option Installation Manual
Thank you for choosing this Mitsubishi Electric inverter option unit.
This manual provides handling information and precautions for use of the this product. Incorrect handling might
cause an unexpected fault. Before using this product, always read this manual carefully to use this product
correctly.
In addition to this manual, refer to the Overview Manual enclosed with the product to ensure proper use. Do not
use this product until you have full knowledge of the product's workings, safety information and instructions.
Please forward this manual to the end user.

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Summary of Contents for Mitsubishi Electric 800 Series

  • Page 1 FR-A8CU Option Installation Manual Thank you for choosing this Mitsubishi Electric inverter option unit. This manual provides handling information and precautions for use of the this product. Incorrect handling might cause an unexpected fault. Before using this product, always read this manual carefully to use this product correctly.

  • Page 2: Table Of Contents

    CONTENTS 1 INTRODUCTION Applicable models Attachment for cable connection in the enclosure (FR-A8CW) 1.2.1 Checking the parts............................7 1.2.2 Outline dimensions ............................10 1.2.3 Items required for installation..........................12 Enclosure slide rail (FR-A8SR) 1.3.1 Checking the parts............................13 1.3.2 Outline dimensions ............................14 1.3.3 Items required for installation..........................16 IP20 compliant attachment (FR-A8CU) 1.4.1 Checking the parts............................17...
  • Page 3 4.2.2 Installation procedure of the FR-A8SR59....................... 72 Installation method of the FR-A8CU 4.3.1 Installation procedure of the FR-A8CU39 ...................... 73 4.3.2 Installation procedure of the FR-A8CU59 ...................... 76 4.3.3 Installation procedure of the FR-A8CU79 ...................... 79 5 EQUIPMENT CONFIGURATION AND SELECTION OF PERIPHERAL DEVICES Applicable inverters Selecting the breaker / magnetic contactor (for 12-phase rectification)
  • Page 4 • A person who possesses a certification in regard with electric appliance handling, or person took a proper engineering training. Such training may be available at your local Mitsubishi Electric office. Contact your local sales office for schedules and locations.

  • Page 5: Introduction

    INTRODUCTION The contents described in this chapter must be read before using this product. Always read the instructions before use. Notes on descriptions in this Instruction Manual This manual assumes that the TS8826.500 enclosure manufactured by Rittal is used. If any other enclosure is used, install it according to its specification. About the related manuals Manuals related to the FR-CC2 converter unit are shown in the following table.

  • Page 6: Applicable Models

    Applicable models Applicable models Check the model name and capacity of the inverter and the converter unit used. Refer to the following table to prepare appropriate options according to the capacity. Attachment for cable connection in the enclosure (FR-A8CW) PASSED OPTION MODEL   :   FR - A8CW □□-□...
  • Page 7 Applicable models Applicable model Option model FR-A872 FR-A872-P FR-CC2-N FR-CC2-N-P 450K, 500K, 450K, 500K, FR-A8SR39 560K, 630K 560K FR-A8SR59 05690, 06470, 07150 -: Cannot be used. IP20 compliant attachment (FR-A8CU) PASSED OPTION MODEL   :   FR - A8CU □□ SERIAL   : XXXXX XXXXXXXXXXX MITSUBISHI ELECTRIC CORPORATION XXXXXXXXXXX MADE IN XXXXX F R - A 8 C U Symbol Applicable capacity Symbol Voltage class Symbol...

  • Page 8: Attachment For Cable Connection In The Enclosure (Fr-A8Cw) Checking The Parts

    Attachment for cable connection in the enclosure (FR-A8CW) Attachment for cable connection in the enclosure (FR-A8CW) 1.2.1 Checking the parts Open the packaging, check the attachment model, and confirm that the number of pieces of each part is correct. FR-A8CW29-N (Total mass: approx. 23 kg) 8 1 3 8 1 2 8 1 1...
  • Page 9 Attachment for cable connection in the enclosure (FR-A8CW) FR-A8CW39-N (Total mass: approx. 23 kg) 8 1 0 8 1 0 8 0 9 8 0 9 8 0 8 8 0 8 Part Part name Quantity Upper attachment FR-A8CW39-N-A Lower attachment FR-A8CW39-N-B Front cover 633H01...
  • Page 10 Attachment for cable connection in the enclosure (FR-A8CW) FR-A8CW59-N (Total mass: approx. 21 kg) 8 1 4 8 1 5 8 1 6 Part Part name Quantity Upper attachment FR-A8CW59-N-A Lower attachment FR-A8CW59-N-B Front cover 639H01 Side cover 639H02 U-phase relay conductor V-phase relay conductor W-phase relay conductor 8 (A)

  • Page 11: Outline Dimensions

    Attachment for cable connection in the enclosure (FR-A8CW) 1.2.2 Outline dimensions FR-A8CW29-N/FR-A8CW39-N Upper attachment (FR-A8CW29-N-A/FR-A8CW39-N-A) 549.9 518.5 (10.3) 21.1 294.8 121.2 (Unit: mm) 132.5 216.5 Lower attachment (FR-A8CW29-N-B/FR-A8CW39-N-B) 97±0.3 (35) 152 (S/L2) 58.4 (T/L3) 304 (R/L1) 503.5 (PE/ground) 85.2 (Unit: mm) INTRODUCTION...
  • Page 12 Attachment for cable connection in the enclosure (FR-A8CW) FR-A8CW59-N  Upper attachment (FR-A8CW59-N-A) 514.7 20.2 102.9 219.3 516.3 (Unit: mm) Lower attachment (FR-A8CW59-N-B) (21.9) 86.6 152 (V) 50.5 (U) (Unit: mm) 304 (W) 500.5 (PE/ground) INTRODUCTION...

  • Page 13: Items Required For Installation

    Attachment for cable connection in the enclosure (FR-A8CW) 1.2.3 Items required for installation Prepare appropriate parts and tools according to the attachment and the enclosure used. Parts Item Applicable model Recommended dimension Quantity FR-A8CW29-N 16 mm Backside screw for lower attachment (M8) FR-A8CW39-N 16 mm FR-A8CW59-N...

  • Page 14: Enclosure Slide Rail (Fr-A8Sr) Checking The Parts

    Enclosure slide rail (FR-A8SR) Enclosure slide rail (FR-A8SR) 1.3.1 Checking the parts Open the packaging, check the attachment model, and confirm that the number of pieces of each part is correct. FR-A8SR39 (Total mass: approx. 24 kg) Part Part name Quantity Slide rail unit FR-A8SR39...

  • Page 15: Outline Dimensions

    Enclosure slide rail (FR-A8SR) 1.3.2 Outline dimensions FR-A8SR39 Slide rail unit (FR-A8SR39) 2×φ11±0.1 21±0.3 116.3±0.3 105.3±1 311.7±0.7 567±1 φ12±0.3 528±0.5 17±0.3 17±0.3 φ11±0.3 16±0.3 (Unit: mm) Lifter guide (645H02) 286.5 79.5 (Unit: mm) INTRODUCTION...
  • Page 16 Enclosure slide rail (FR-A8SR) FR-A8SR59 Slide rail unit (FR-A8SR59) 21±0.3 2×φ11±0.1 116.3±0.3 105.3±1 311.7±0.7 567±1 φ12±0.3 528±0.5 17±0.3 17±0.3 16±0.3 φ11±0.3 (Unit: mm) Lifter guide (645H01) 236.5 79.5 (Unit: mm) INTRODUCTION...

  • Page 17: Items Required For Installation

    Enclosure slide rail (FR-A8SR) 1.3.3 Items required for installation Prepare appropriate parts and tools according to the enclosure used. Parts Recommended Item Applicable model Quantity dimension FR-A8SR39 25 mm Slide rail unit installation screw (M10) FR-A8SR59 25 mm Installation screws for the top of the inverter (M8) FR-A8SR39 16 mm Installation screws for the top of the converter unit (M8)

  • Page 18: Ip20 Compliant Attachment (Fr-A8Cu) Checking The Parts

    IP20 compliant attachment (FR-A8CU) IP20 compliant attachment (FR-A8CU) 1.4.1 Checking the parts Open the packaging, check the attachment model, and confirm that the number of pieces of each part is correct. FR-A8CU39-N (Total mass: approx. 1.2 kg) Part Part name Quantity Upper IP20 cover 644H02...

  • Page 19: Outline Dimensions

    IP20 compliant attachment (FR-A8CU) 1.4.2 Outline dimensions FR-A8CU39-N Upper IP20 cover (644H02) (Unit: mm) Lower IP20 cover (644H05) 13.4 270.2 13.4 115.2 (Unit: mm) INTRODUCTION...
  • Page 20 IP20 compliant attachment (FR-A8CU) FR-A8CU59-N Upper IP20 cover (644H01) 32.5 32.5 (Unit: mm) Lower IP20 cover (644H04) 13.4 220.2 13.4 115.2 (Unit: mm) INTRODUCTION...
  • Page 21 IP20 compliant attachment (FR-A8CU) FR-A8CU79-N Upper IP20 cover (644H03) 114.5 (Unit: mm) Bus bar for terminals P/+ and N/- (807) 347.5 (Unit: mm) INTRODUCTION...

  • Page 22: Items Required For Installation

    IP20 compliant attachment (FR-A8CU) 1.4.3 Items required for installation Prepare appropriate parts and tools according to the enclosure used. Conductors and bus bars Item Applicable model Dimension Quantity FR-A8CU39-N Conductors P and N Refer to the diagram below. FR-A8CU59-N FR-A8CU39-N Bus bar for terminals R, S, and T of converter unit ...

  • Page 23: Enclosure Design

    Enclosure specifications ENCLOSURE DESIGN This chapter explains the enclosure specification and reinforcement of the enclosure. To use an enclosure to install this product, always read the following instructions before preparing an enclosure and installation. When using the FR-A8CU only, refer to the FR-A802 (Separated Converter Type) Instruction Manual (Hardware) and the FR- CC2-N Instruction Manual for installation in the enclosure.

  • Page 24: Specifications When The Options Are Used

    Enclosure specifications 2.1.2 Specifications when the options are used The following shows the outline dimensions of the inverter and the converter unit and the location of the installation holes when the options are installed. FR-A8CW  Outline dimensions 22.5 to 25 when using the FR-A8CU79 102.5 (Unit: mm) ENCLOSURE DESIGN...
  • Page 25 Enclosure specifications  Location of the installation holes for the FR-A8CW The installation holes (screw holes) shown in the following figure are required to fix the inverter, the converter unit, and the FR-A8CW to the enclosure. 225 to 227.5 when using the FR-A8CU79 75 50 50 50 50 30 (back)
  • Page 26 Enclosure specifications FR-A8SR  Outline dimensions 22.5 to 25 when using the FR-A8CU79 (Unit: mm) ENCLOSURE DESIGN...
  • Page 27 Enclosure specifications  Location of the installation holes for the FR-A8SR The installation holes (screw holes) shown in the following figure are required to fix the inverter, the converter unit, and the FR-A8SR to the enclosure. 225 to 227.5 when using the FR-A8CU79 107.5 Not used.
  • Page 28 Enclosure specifications  Dimension when the FR-A8SR is pulled out The following figure shows the dimension when the FR-A8SR is pulled out. Consider those dimensions for the installation  area. Front view Side view (Unit: mm)  All dimensions are common between the FR-A8SR39 and the FR-A8SR59. ENCLOSURE DESIGN...

  • Page 29: Reinforcement Of The Enclosure

    Reinforcement of the enclosure Reinforcement of the enclosure To use the FR-A8CW and the FR-A8SR, prepare metal supports and install them to the enclosure. Three types of supports are used. Refer to the following schematic drawing and outline dimensions. NOTE •...
  • Page 30 Reinforcement of the enclosure  Support B 4×M10 (Self-clinching nut) 10.5 735±0.8 4×φ9 2×M6 (3.2) 4×M10 (Self-clinching nut) 60±0.3 152.5±0.3 180±0.3 48±0.3 6×M8 (Self-clinching nut) 465±0.5 130±0.3 65.7 25±0.3 25±0.3 6×M8 (Self-clinching nut) 4×φ16 (Unit: mm)  Support C 25±0.3 25±0.3 25±0.3 6×M8...

  • Page 31: Installation Procedure

    Flowchart of the installation procedure INSTALLATION PROCEDURE This chapter shows the flowchart of the installation procedure and explains the installation method of the FR-A8CW, FR- A8SR, and FR-A8CU. Always read the instructions before installation. The parts required to install the option vary depending on the option model. Ensure that the part number and the screw size are correct before the installation.

  • Page 32: Installation To The Enclosure Installation Of The Fr-A8Cw[]-N-B (Lower Attachment)

    Installation to the enclosure Installation to the enclosure 3.2.1 Installation of the FR-A8CW[]-N-B (lower attachment) Install the FR-A8CW[]-N-B to the enclosure and wire it. The FR-A8CW[]-N-A is to be installed in "3.3.2 Installation of the FR-A8CW[]-N-A (upper attachment)" on page FR-A8CW29-N-B/FR-A8CW39-N-B FR-A8CW59-N-B Option model...
  • Page 33 Installation to the enclosure Installation of the FR-A8CW29-N-B/FR-A8CW39-N-B (lower attachment) Step1. Remove the side panel of the lower attachment. Lower attachment Side panel Step2. Fix the lower attachment to the enclosure with the screws shown in the following figure. (The backside screws for lower attachment (M8) and the bottom screw for lower attachment (M6) are not provided with the product.
  • Page 34 Installation to the enclosure T/L3-2 S/L2-2 R/L1-2 T/L3-1 S/L2-1 R/L1-1 12-phase rectification CAUTION  Put an insulation tube to the cable as shown in the following figure. Do not use a damaged insulation tube. Doing so may cause an earth (ground) fault. 50 mm or less Insulation tube 13 mm or more...
  • Page 35 Installation to the enclosure Installation of the FR-A8CW59-B (lower attachment) Step1. Remove the side panel of the lower attachment. Lower attachment Side panel Step2. Fix the lower attachment to the enclosure with the screws shown in the following figure. (The backside screws for lower attachment (M8) and the bottom screw for lower attachment (M6) are not provided with the product.
  • Page 36 Installation to the enclosure CAUTION  Put an insulation tube to the cable as shown in the following figure. Do not use a damaged insulation tube. Doing so may cause an earth (ground) fault. 50 mm or less Insulation tube 13 mm or more NOTE •...

  • Page 37: Installation Of The Fr-A8Sr[] Slide Rail Units

    Installation to the enclosure 3.2.2 Installation of the FR-A8SR[] slide rail units Install the FR-A8SR[] to the enclosure. FR-A8SR39 FR-A8SR59 FR-A8SR[] Option for Refer to page Converter unit Inverter INSTALLATION PROCEDURE...
  • Page 38 Installation to the enclosure Installation of the FR-A8SR39 slide rail units Step1. Put the slide rail unit on the metal supports of the enclosure. (For the metal supports, refer to page 28.) The slide rail unit is to be fixed in Steps 4 and 5. Slide rail unit CAUTION ...
  • Page 39 Installation to the enclosure Step4. Fix the front of the slide rail unit with the installation screws as shown in the following figure. (Installation screws for the slide rail unit are not provided with the product. Prepare them referring to page 16.) Slide rail unit...
  • Page 40 Installation to the enclosure Installation of the FR-A8SR59 slide rail units Step1. Put the slide rail unit on the metal supports of the enclosure. (For the metal supports, refer to page 28.) The slide rail unit is to be fixed in Steps 4 and 5. Slide rail unit CAUTION ...
  • Page 41 Installation to the enclosure Step4. Fix the front of the slide rail unit with the installation screws as shown in the following figure. (Installation screws for the slide rail unit are not provided with the product. Prepare them referring to page 16.) Slide rail unit installation screw...

  • Page 42: Installation Of The Inverter And The Converter Unit Fixing The Inverter And The Converter Unit On The Fr-A8Sr Slide Rail Units

    Installation of the inverter and the converter unit Installation of the inverter and the converter unit 3.3.1 Fixing the inverter and the converter unit on the FR-A8SR slide rail units Fix the inverter and the converter unit on the FR-A8SR[]. FR-CC2-N FR-A872 FR-A8SR[]...
  • Page 43 Installation of the inverter and the converter unit How to fix the converter unit on the FR-A8SR39 (slide rail unit) Step1. Remove the lower main circuit terminal cover of the converter unit. Lower main circuit terminal block cover Step2. Install the lifter guide to the converter unit with the installation screws as shown in the following figure. Lifter guide 3(A): Lifter guide installation screw (M8-16) INSTALLATION PROCEDURE...
  • Page 44 Installation of the inverter and the converter unit Step3. Put the converter unit on the forks of the lifter as shown in the following figure. Make the converter unit closely fit to the lifter and fasten them with a belt as shown in the following figure to prevent the unit from falling down.
  • Page 45 Installation of the inverter and the converter unit Step4. Pull out the FR-A8SR39. Lift the converter unit above the FR-A8SR39. Fix the converter unit to the enclosure using a belt and the holes for hanging at the top of the unit as shown in the following figure.
  • Page 46 Installation of the inverter and the converter unit Step5. Lower the converter unit carefully. Lower the fork carefully until the bottom edge of the converter unit becomes lower than the upper edge of the guide of the FR-A8SR39. At this time, adjust the position of the converter unit using the lifter so that the installation holes of the converter unit and the FR-A8SR39 are lined up.
  • Page 47 Installation of the inverter and the converter unit Step9. Fix the converter unit with the installation screws as shown in the following figure. 3(B): Attachment installation screw (M10-30) NOTE • When the screws cannot be inserted smoothly, adjust the position of the converter unit with a tool at the position adjustment holes as shown in the following figure.
  • Page 48 Installation of the inverter and the converter unit How to fix the inverter on the FR-A8SR59 (slide rail unit) Step1. Remove the lower main circuit terminal cover of the inverter. Lower main circuit terminal block cover Step2. Install the lifter guide to the inverter with the installation screws as shown in the following figure. Lifter guide 3(A): Lifter guide installation screw (M8-16) INSTALLATION PROCEDURE...
  • Page 49 Installation of the inverter and the converter unit Step3. Put the inverter on the forks of the lifter as shown in the following figure. Make the inverter closely fit to the lifter and fasten them with a belt to prevent the inverter from falling down as shown in the following figure.
  • Page 50 Installation of the inverter and the converter unit Step4. Pull out the FR-A8SR59. Lift the inverter above the FR-A8SR59. Fix the inverter to the enclosure using a belt and the holes for hanging at the top of the inverter as shown in the following figure.
  • Page 51 Installation of the inverter and the converter unit Step5. Lower the inverter carefully. Lower the fork carefully until the bottom edge of the inverter becomes lower than the upper edge of the guide of the FR-A8SR59. At this time, adjust the position of the inverter using the lifter so that the installation holes of the inverter and the FR-A8SR59 are lined up.
  • Page 52 Installation of the inverter and the converter unit Step9. Fix the inverter with the installation screws (M10-30) as shown in the following figure. 3(B): Attachment installation screw (M10-30) NOTE • When the screws cannot be inserted smoothly, adjust the position of the converter unit with a tool at the position adjustment holes as shown in the following figure.

  • Page 53: Installation Of The Fr-A8Cw[]-N-A (Upper Attachment)

    Installation of the inverter and the converter unit 3.3.2 Installation of the FR-A8CW[]-N-A (upper attachment) Remove the side covers for main circuit terminals of the inverter and the converter unit, and install the FR-A8CW[]-N-A (upper attachment). FR-A8CW29-N-A/FR-A8CW39-N-A FR-A8CW59-N-A FR-A8CW[]-N-A Option for Refer to page Converter unit (for 6-phase rectification) Converter unit (for 12-phase rectification)
  • Page 54 Installation of the inverter and the converter unit Installation of the FR-A8CW29-N-A/FR-A8CW39-N-A (upper attachment) Step1. Remove the side cover for main circuit terminals of the converter unit. Keep the removed screws. They will be used in Step 3. Side cover for main circuit terminals Step2.
  • Page 55 Installation of the inverter and the converter unit Installation of the FR-A8CW59-N-A (upper attachment) Step1. Remove the side cover for main circuit terminals of the inverter. Keep the removed screws. They will be used in Step 4. Side cover for main circuit terminals Step2.
  • Page 56 Installation of the inverter and the converter unit Step4. Install the upper attachment with the screws removed in Step 1. Upper attachment Screws removed in Step 1 (4 pcs.) Step5. Connect the conductors of the upper attachment and the inverter with the screws removed in Step 1. Upper attachment Screws removed in Step 2 (3 pcs.) The procedure is complete.

  • Page 57: Installation Of The Inverter And The Converter Unit In The Enclosure Using The Fr-A8Sr[] Slide Rail Units

    Installation of the inverter and the converter unit 3.3.3 Installation of the inverter and the converter unit in the enclosure using the FR-A8SR[] slide rail units Install the inverter and the converter unit in the enclosure and fix them. Installation screws for the top FR-A8SR （Front stopper）...
  • Page 58 Installation of the inverter and the converter unit Installation of the converter unit in the enclosure Step1. Remove the lifter guide. Lifter guide Step2. Fix the side stopper to the locked position, and install the converter unit in the enclosure slowly. Side stopper (unlocked) Step3.
  • Page 59 Installation of the inverter and the converter unit Step4. Fix the converter unit in the enclosure by tightening the installation screws (M8) into the upper mounting holes of the converter unit. (Installation screws for the top of the converter unit (M8) are not provided with the product. Prepare them referring to page 16.)
  • Page 60 Installation of the inverter and the converter unit Installation of the inverter in the enclosure Step1. Remove the lifter guide. Lifter guide Step2. Fix the side stopper to the locked position, and install the inverter in the enclosure slowly. Side stopper (unlocked) Step3.
  • Page 61 Installation of the inverter and the converter unit Step4. Fix the inverter in the enclosure by tightening the installation screws (M8) into the upper mounting holes of the inverter. (Installation screws for the top of the inverter (M8) are not provided with the product. Prepare them referring to page 16.)

  • Page 62: Connecting The Fr-A8Cw[]-N-A Upper Attachments And The Fr-A8Cw[]-N-B Lower Attachments

    Installation of the inverter and the converter unit 3.3.4 Connecting the FR-A8CW[]-N-A upper attachments and the FR-A8CW[]-N-B lower attachments Connect the FR-A8CW[]-N-A (the upper attachment) and the FR-A8CW[]-N-B (the lower attachment) with relay conductors. FR-A8CW[]-N-A Option for Refer to page Converter unit (for 6-phase rectification) Converter unit (for 12-phase rectification) Inverter...
  • Page 63 Installation of the inverter and the converter unit Connection of the FR-A8CW29-N-A and the FR-A8CW29-N-B, and the FR- A8CW39-N-A and the FR-A8CW39-N-B Step1. Connect the T-phase relay conductor, S-phase relay conductor, and R-phase relay conductor with the installation screws as shown in the following figure. Place the conductors with the long hole side down. Connect the T-phase conductor first, then the S-phase conductor, and the R-phase conductor after that.
  • Page 64 Installation of the inverter and the converter unit Connection of the FR-A8CW59-N-A and the FR-A8CW59-N-B Step1. Connect the U-phase relay conductor, V-phase relay conductor, and W-phase relay conductor with the installation screws as shown in the following figure. Place the conductors with the long hole side down. Connect the U-phase conductor first, then the V-phase conductor, and the W-phase conductor after that.

  • Page 65: Ip20 Protection For The Inverter And The Converter Unit Installation Of The Fr-A8Cu (Ip20 Compliant Attachment)

    IP20 protection for the inverter and the converter unit IP20 protection for the inverter and the converter unit 3.4.1 Installation of the FR-A8CU (IP20 compliant attachment) Remove the upper main circuit terminal covers (front) of the inverter and the converter unit, and install the conductors P and N and the upper IP20 cover.
  • Page 66 IP20 protection for the inverter and the converter unit Installation of the FR-A8CU39-N Step1. Remove the upper main circuit terminal cover (front) of the converter unit. Keep the removed screws. They will be used in Step 4. Upper main circuit terminal cover (front) Step2.
  • Page 67 IP20 protection for the inverter and the converter unit Step4. Reinstall the upper IP20 cover to the converter unit with the screws removed in Step 1. Upper IP20 cover (644H02) Screws removed in Step 1 Step5. Reinstall the upper resin cover (back) to the upper IP20 cover. Upper resin cover (back) The procedure is complete.
  • Page 68 IP20 protection for the inverter and the converter unit Installation of the FR-A8CU59-N Step1. Remove the upper main circuit terminal cover (front) of the inverter. Keep the removed screws. They will be used in Step 4. Upper main circuit terminal cover (front) Step2.
  • Page 69 IP20 protection for the inverter and the converter unit Step4. Reinstall the upper IP20 cover to the inverter with the screws removed in Step 1. Upper IP20 cover (644H01) Screws removed in Step 1 Step5. Reinstall the upper resin cover (back) to the upper IP20 cover. Upper resin cover (back) The procedure is complete.
  • Page 70 IP20 protection for the inverter and the converter unit Installation of the FR-A8CU79-N Step1. Remove the upper main circuit terminal covers (front) of the inverter and the converter unit. Upper main circuit terminal cover (front) Step2. Remove the side covers and the body screws from the inverter and the converter unit. Side cover Body screw INSTALLATION PROCEDURE...
  • Page 71 IP20 protection for the inverter and the converter unit Step3. Connect the bus bars for terminals P/+ and N/-. Bus bar for terminals P/+ and N/- Step4. Reinstall the upper main circuit terminal covers (front). Upper main circuit terminal cover (front) Step5.

  • Page 72: Installation Of One Option Alone

    Installation method of the FR-A8CW INSTALLATION OF ONE OPTION ALONE This chapter shows the installation method of and reference page of each option to be installed alone. Refer to this chapter as required. Installation method of the FR-A8CW 4.1.1 Installation procedure of the FR-A8CW29/FR- A8CW39 The installation process of the FR-A8CW29/FR-A8CW39 is as follows.

  • Page 73: Installation Method Of The Fr-A8Sr

    Installation method of the FR-A8SR Installation method of the FR-A8SR 4.2.1 Installation procedure of the FR-A8SR39 The installation process of the FR-A8SR39 is as follows. Refer to Installation process Installation guideline page Installation of the FR-A8SR39 Install the FR-A8SR39 to the enclosure, and pull it out. Installation of the converter unit on Install the lifter guide to the converter unit, and put the the FR-A8SR39...

  • Page 74: Installation Method Of The Fr-A8Cu Installation Procedure Of The Fr-A8Cu39

    Installation method of the FR-A8CU Installation method of the FR-A8CU 4.3.1 Installation procedure of the FR-A8CU39 Refer to Installation process Installation guideline page Installation of the Remove the upper main circuit terminal cover (front) of the converter unit, upper IP20 cover and install the conductors P and N and the upper IP20 cover.
  • Page 75 Installation method of the FR-A8CU Step4. Install the lower IP20 cover to the converter unit with the installation screws as shown in the following figure. Lower IP20 cover (644H05) Attachment installation screw (M5-12) Step5. Connect the bus bars for terminals R, S, and T of converter unit. Bus bar for terminals R, S, and T of converter unit Step6.
  • Page 76 Installation method of the FR-A8CU Step8. Reinstall the front panel. Front panel The procedure is complete. INSTALLATION OF ONE OPTION ALONE...

  • Page 77: Installation Procedure Of The Fr-A8Cu59

    Installation method of the FR-A8CU 4.3.2 Installation procedure of the FR-A8CU59 Refer to Installation process Installation guideline page Remove the upper main circuit terminal cover (front) of the Installation of the upper IP20 cover inverter, and install the conductors P and N and the upper IP20 cover.
  • Page 78 Installation method of the FR-A8CU Step4. Install the lower IP20 cover to the inverter with the installation screws (M5-12) as shown in the following figure. Lower IP20 cover (644H04) Attachment installation screw (M5-12) Step5. Connect the bus bars for terminals U, V, and W of inverter. Bus bars for terminals U, V, and W of inverter Step6.
  • Page 79 Installation method of the FR-A8CU Step7. Reinstall the lower main circuit terminal cover. Lower main circuit terminal block cover Step8. Reinstall the front panel. Front panel The procedure is complete. INSTALLATION OF ONE OPTION ALONE...

  • Page 80: Installation Procedure Of The Fr-A8Cu79

    Installation method of the FR-A8CU 4.3.3 Installation procedure of the FR-A8CU79 Refer to Installation process Installation guideline page Remove the upper main circuit terminal covers (front) of the Installation of the upper IP20 cover inverter and the converter unit, and install the conductors P and N and the upper IP20 covers to the both units.

  • Page 81: Equipment Configuration And Selection Of Peripheral Devices

    Applicable inverters EQUIPMENT CONFIGURATION AND SELECTION OF PERIPHERAL DEVICES Applicable inverters According to the connected motor capacity, configure the converter units and the inverters as follows. 690 VAC power input Single wound motor 600 V system Inverter Wire Number of capacity Converter connection...

  • Page 82: Selecting The Breaker / Magnetic Contactor (For 12-Phase Rectification)

    Selecting the breaker / magnetic contactor (for 12-phase rectification) 575 VAC power input Single wound motor 600 V system Inverter Wire Number of capacity Converter connection Balance units Motor Output unit attachment reactor connected Multiple Model capacity current rating (for converter unit) in parallel (kW) FR-CC2-...

  • Page 83: Connecting One Unit

    Selecting the breaker / magnetic contactor (for 12-phase rectification) 5.2.1 Connecting one unit Option 1 Option 2 FR-A8CW39 FR-CC2-N 12-phase rectifier MCCB power transformer MCCB R/L1-1 S/L2-1 T/L3-1 MCCB R/L1-2 S/L2-2 T/L3-2 Choose either of the option 1 or 2 shown above or both of them to connect the power distribution control equipment. To turn ON/OFF the power supply, option 1 is recommended.

  • Page 84: Connecting Multiple Units In Parallel

    Selecting the breaker / magnetic contactor (for 12-phase rectification) • Option 2 To connect the equipment to the output side of the 12-phase rectifier transformer, refer to the following table and prepare appropriate equipment. Rated input current from Magnetic contactor (MC) ...
  • Page 85 Selecting the breaker / magnetic contactor (for 12-phase rectification) • Option 1 To connect the equipment to the input side of the 12-phase rectifier transformer, refer to the following table and prepare appropriate equipment. • 690 VAC power input When a single wound motor or a multi-wound motor is connected under V/F control or Advanced magnetic flux vector control.
  • Page 86 Selecting the breaker / magnetic contactor (for 12-phase rectification)  Select an MCCB according to the power supply capacity. Single wound Multi-wound MCCB Converter unit MCCB Converter unit MCCB Converter unit MCCB Converter unit  The matrix shows the magnetic contactor selected according to the standards of Japan Electrical Manufacturers' Association (JEM standards) for AC-1 class.
  • Page 87 Selecting the breaker / magnetic contactor (for 12-phase rectification) When a multi-wound motor is connected under Real sensorless vector control or Vector control Rated input current from Magnetic contactor (MC)  Number of Applicable MCCB  delta/wye connection converter unit's input side ...
  • Page 88 Selecting the breaker / magnetic contactor (for 12-phase rectification) • 575 VAC power input When a single wound motor or a multi-wound motor is connected under V/F control or Advanced magnetic flux vector control Rated input current from Magnetic contactor (MC) ...

  • Page 89: Wiring Of The Main Circuit

    WIRING OF THE MAIN CIRCUIT This chapter explains the main circuit terminals. Always read the instructions before use. Main circuit terminals (for 6-phase rectification) 6.1.1 Details on the main circuit terminals Terminal symbol Terminal name Terminal function description Refer to page R/L1-1, R/L1-2, S/L2-1, AC power input Connect these terminals to the commercial power supply.

  • Page 90: Recommended Cables (For 6-Phase Rectification)

    Main circuit terminals (for 6-phase rectification) 6.1.4 Recommended cables (for 6-phase rectification) Use cables and bus bars of the recommended size to ensure that the voltage drop will be 2% or less. Connecting cables • To connect cables to terminals R/L1, S/L2, and T/L3, the wire connection attachment (FR-A8CW) is required. Refer to page for how to install the FR-A8CW.

  • Page 91: Tightening Torque Of The Conductive Terminal

    Bus bar connection The following table shows selection examples for the wiring length of 20 m (690 V input power supply). • Converter unit (FR-CC2) Bus bar dimensions Earth (ground) Tightening (for each phase) cable size Converter model Terminal screw size torque ...

  • Page 92: Main Circuit Terminals (For 12-Phase Rectification) Details On The Main Circuit Terminals

    Main circuit terminals (for 12-phase rectification) Main circuit terminals (for 12-phase rectification) 6.2.1 Details on the main circuit terminals Terminal symbol Terminal name Terminal function description Refer to page Connect these terminals to the output terminals in the wye connection of R/L1-1, S/L2-1, T/L3-1 —...

  • Page 93: Connection Diagram For 12-Phase Rectification

    6.2.3 Connection diagram for 12-phase rectification Connecting one unit Jumper*1 Main circuit terminal Converter unit Control circuit terminal R1/L11 Inverter Control circuit S1/L21 MCCB FR-A8CW39 DC reactor Inrush current R/L1-1 limit circuit S/L2-1 Three-phase T/L3-1 AC power supply R/L1-2 S/L2-2 T/L3-2 EMC filter ON/OFF...

  • Page 94: 12-Phase Rectifier Transformer

    Main circuit terminals (for 12-phase rectification) 6.2.4 12-phase rectifier transformer For 12-phase rectification, a 12-phase rectifier transformer (3-winding transformer) is required (supplied by customer). To prevent imbalances in output current from the power transformers, adjust the current as follows. • Control imbalances in output voltage from the power transformers to within the range of ±0.5%. •...

  • Page 95: Tightening Torque Of The Conductive Terminal

    Bus bar dimensions Earth (ground) (for each phase) cable size Converter model Tightening torque Terminal screw size R, S, T  FR-CC2-N[] N·m PVC, etc. 12-phase (mm2)  rectification  450K to 630K 6 mm thick and 25 mm M12 (M10) 46 (24.5) 2 ×...

  • Page 96: Power Supply Harmonics

    Power supply harmonics POWER SUPPLY HARMONICS Power supply harmonics The inverter or the converter unit may generate power supply harmonics from its converter circuit to affect the power generator, power factor correction capacitor, etc. Power supply harmonics are different from noise and leakage currents in source, frequency band and transmission path.

  • Page 97: Harmonic Suppression Guidelines In Japan

    Harmonic suppression guidelines in Japan Harmonic currents flow from the inverter or the converter unit to a power receiving point via a power transformer. The Harmonic Suppression Guidelines was established to protect other consumers from these outgoing harmonic currents. The three-phase 200 V input specifications 3.7 kW or lower were previously covered by "the Harmonic Suppression Guidelines for Household Appliances and General-purpose Products"...
  • Page 98 Harmonic suppression guidelines in Japan  Equivalent capacity limit Received power voltage Reference capacity 6.6 kV 50 kVA 22/33 kV 300 kVA 66 kV or more 2000 kVA  Harmonic contents for 6-phase rectification (values of the fundamental current are 100%) Reactor 11th 13th 17th 19th...
  • Page 99  Determining if a countermeasure is required A countermeasure for harmonics is required if the following condition is satisfied: outgoing harmonic current > maximum value per 1 kW contract power × contract power.  Harmonic suppression techniques Item Description When used with a reactor connected in series, the power factor improving correction capacitor can Power factor improving static capacitor absorb harmonic currents.

  • Page 100: Appendix

    CE marking. • The authorized representative in the EU The authorized representative in the EU is shown below. Name: Mitsubishi Electric Europe B.V. Address: Mitsubishi-Electric-Platz 1, 40882 Ratingen, Germany • Note We declare that the inverter and the converter unit conform with the EMC Directive in industrial environments and affix the CE marking on the inverter and the converter unit.
  • Page 101 Instructions for compliance with the EU Directives • Low Voltage Directive: 2014/35/EU • Conforming standard: EN 61800-5-1:2007 Outline of instructions • Do not use an earth leakage circuit breaker as an electric shock protector without connecting the equipment to the earth. Connect the equipment to the earth (ground) securely.

  • Page 102: Branch Circuit Protection

    Instructions for compliance with the EU Directives Connection example 1 Connection example 2 FR-A8CW39 FR-CC2 FR-CC2 FR-A8CW39 Main power Main power 12-phase rectifier 12-phase rectifier  supply side  supply side power transformer power transformer R/L1-1 R/L1-1 S/L2-1 S/L2-1 T/L3-1 T/L3-1 R/L1-2 R/L1-2 S/L2-2 S/L2-2 T/L3-2 T/L3-2 Branch circuit protection To protect the internal circuit against a short circuit, refer to the following table and provide appropriate fuses on the input side.

  • Page 103: Eu Rohs Directive

    Compliance with the UK certification scheme EU RoHS Directive We have declared that our inverters are compliant to the EU RoHS Directive (2011/65/EU) and affix the CE marking on the inverters and converter units. Compliance with the UK certification scheme We declare that Inverter and converter unit conforms with the related technical requirements under UK legislation, and affix the UKCA (UK Conformity Assessed) marking on the product.
  • Page 104 MEMO...
  • Page 105 REVISIONS *The manual number is given on the bottom left of the back cover. Revision Date *Manual number Revision Feb. 2020 IB(NA)-0600850ENG-A First edition Mar. 2022 IB(NA)-0600850ENG-B Added • Description of option models • Compliance with the UK certification scheme Edited •...
  • Page 106 HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN IB(NA)-0600850ENG-B(2203) MEE Printed in Japan Specifications subject to change without notice.

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