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Mitsubishi Electric FR-A806 Instruction Manual
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Mitsubishi Electric FR-A806 Instruction Manual

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INVERTER
FR-A800
FR-A806 (IP55/UL Type 12 SPECIFICATIONS)
INSTRUCTION MANUAL (HARDWARE)
High functionality and high performance
FR-A846-00023(0.4K) to 03610(132K)
INTRODUCTION
INSTALLATION AND WIRING
PRECAUTIONS FOR USE OF
THE INVERTER
PROTECTIVE FUNCTIONS
PRECAUTIONS FOR
MAINTENANCE AND
INSPECTION
SPECIFICATIONS
1
2
3
4
5
6

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Summary of Contents for Mitsubishi Electric FR-A806

  • Page 1 INVERTER FR-A800 FR-A806 (IP55/UL Type 12 SPECIFICATIONS) INSTRUCTION MANUAL (HARDWARE) High functionality and high performance FR-A846-00023(0.4K) to 03610(132K) INTRODUCTION INSTALLATION AND WIRING PRECAUTIONS FOR USE OF THE INVERTER PROTECTIVE FUNCTIONS PRECAUTIONS FOR MAINTENANCE AND INSPECTION SPECIFICATIONS...
  • Page 2 Thank you for choosing this Mitsubishi Electric inverter. This Instruction Manual describes handling and cautions about the hardware, such as installation and wiring, for the FR-A806 (IP55/UL Type 12 specification product) that are different from the FR-A800. Information about the software, such as basic operations and parameters, is described in the Instruction Manual (Detailed) in the CD-ROM enclosed with the product.
  • Page 3  Additional Instructions The following instructions must be also followed. If the product WARNING is handled incorrectly, it may cause unexpected fault, an injury, Usage or an electric shock.  Stay away from the equipment when the retry function is set as it will restart suddenly after a trip.
  • Page 4 General instruction CAUTION  Many of the diagrams and drawings in the Instruction Emergency stop Manual show the product without a cover or partially open  A safety backup such as an emergency brake must be for explanation. Never operate the product in this manner. provided for devices or equipment in a system to prevent The cover must be always reinstalled and the instruction in hazardous conditions in case of failure of this product or an...
  • Page 5 CONTENTS 1 INTRODUCTION Product checking and accessories Component names About the related manuals 2 INSTALLATION AND WIRING Peripheral devices 2.1.1 Inverter and peripheral devices ........................12 2.1.2 Peripheral devices............................14 Removal and reinstallation of the front cover Installation of the inverter 2.3.1 Inverter installation environment ........................
  • Page 6 2.11.2 Connection of the brake unit (FR-BU) ......................65 2.11.3 Connection of the brake unit (BU type)......................66 2.11.4 Connection of the high power factor converter (FR-HC2) ................67 2.11.5 Connection of the multifunction regeneration converter (FR-XC)..............68 2.11.6 Connection of the power regeneration common converter (FR-CV) ..............72 2.11.7 Connection of the power regeneration converter (MT-RC)................73 3 PRECAUTIONS FOR USE OF THE INVERTER...

  • Page 7: Table Of Contents

    5.2.3 Measurement of currents ..........................125 5.2.4 Measurement of inverter input power factor....................125 5.2.5 Measurement of converter output voltage (across terminals P and N) ............125 5.2.6 Measurement of inverter output frequency....................125 5.2.7 Insulation resistance test using megger ....................... 126 5.2.8 Pressure test ..............................
  • Page 8 Parameter unit ..........Parameter unit (FR-PU07) DU ............... Operation panel (FR-DU08-01) PU ............... Operation panel (FR-DU08-01) and parameter unit (FR-PU07) Inverter ............Mitsubishi Electric inverter FR-A800 series (IP55 compatible model) Vector control compatible option ....FR-A8AP/FR-A8AL/FR-A8APA/FR-A8APR/FR-A8APS (plug-in option), FR-A8TP (control terminal option) Pr.
  • Page 9 Product checking and accessories Product checking and accessories Unpack the product and check the rating plate and the capacity plate of the inverter to ensure that the model agrees with the order and the product is intact.  Inverter model ∗1 Symbol Voltage class Symbol Structure, functionality...
  • Page 10 Component names Component names Component names are shown below. (Example: FR-A846-00250(7.5K)) Front cover for control circuit inspection Front cover for main circuit inspection Front cover of the FR-A846-01800(55K) or higher Refer to Symbol Name Description page Connects the operation panel or the parameter unit. This connector also enables PU connector the RS-485 communication.
  • Page 11 About the related manuals About the related manuals The manuals related to FR-A806 are shown below. Manual name Manual number FR-A800 Instruction Manual (Detailed) IB-0600503ENG FR Configurator 2 Instruction Manual IB-0600516ENG FR-A800/F800 PLC function programming manual IB-0600492ENG Safety stop function instruction manual...
  • Page 12 INSTALLATION AND WIRING This chapter explains the "INSTALLATION" and the "WIRING" of this product. Always read the instructions before using the equipment. 2.1 Peripheral devices ..............12 2.2 Removal and reinstallation of the front cover......15 2.3 Installation of the inverter ............18 2.4 Terminal connection diagrams..........22 2.5 Main circuit terminals...

  • Page 13: Peripheral Devices

    Peripheral devices Peripheral devices 2.1.1 Inverter and peripheral devices (a) Inverter (b) Three-phase AC power supply ∗1 (l) USB connector USB host (A connector) Communication status indicator (LED)(USB host) (c) Molded case circuit breaker USB device (MCCB) or earth leakage current (Mini B connector) breaker (ELB), fuse Personal computer...
  • Page 14 The ambient temperature should be as low as possible within the permissible range. Incorrect wiring may lead to damage of the inverter. The control signal Inverter (FR-A806) lines must be kept fully away from the main circuit lines to protect them from noise.
  • Page 15 FR-A846-03610(132K) 350 A S-N220  Assumes the use of a Mitsubishi Electric 4-pole standard motor with the power supply voltage of 400 VAC 50 Hz.  Select an MCCB according to the power supply capacity. MCCB Install one MCCB per inverter.

  • Page 16: Removal And Reinstallation Of The Front

    Removal and reinstallation of the front cover Removal and reinstallation of the front cover Removal of the front cover • Remove the front cover installation screws to remove the front cover. (For the FR-A846-00620(22K) to 01160(45K), remove the operation panel before removing the front cover.) Inverter Screw type Screw size...
  • Page 17 Removal and reinstallation of the front cover Removal of the front cover for control circuit inspection and the front cover for main circuit inspection (FR-A846-01800(55K) or higher) • Remove the installation screws to remove the front cover for control circuit inspection and/or the front cover for main circuit inspection.
  • Page 18 Removal and reinstallation of the front cover NOTE • When installing the front cover for the FR-A846-00470(18.5K) or lower, fit the connector of the operation panel securely along the guides of the PU connector. Otherwise, the operation panel connection connector or the PU connector may be damaged. •...

  • Page 19: Installation Of The Inverter

    Installation of the inverter Installation of the inverter An inverter unit uses many semiconductor devices. To ensure higher reliability and long period of operation, operate the inverter in the ambient environment that completely satisfies the equipment specifications. 2.3.1 Inverter installation environment The following table lists the standard specifications of the inverter installation environment.
  • Page 20 Installation of the inverter Humidity Operate the inverter within the ambient air humidity of usually 45 to 90%. Too high humidity will pose problems of reduced insulation and metal corrosion. On the other hand, too low humidity may cause a spatial electrical breakdown. The insulation distance defined in JEM 1103 "Control Equipment Insulator"...
  • Page 21 Installation of the inverter 2.3.2 Amount of heat generated by the inverter Installing the heat sink inside the enclosure When the heat sink is installed inside the enclosure, the amount of heat generated by the inverter unit is shown in the following tables.
  • Page 22 Installation of the inverter 2.3.3 Inverter installation Inverter placement • Install the inverter on a strong flat surface securely with screws. Fix six positions for the FR-A846-01800(55K) or higher. • Leave enough clearances and take cooling measures. • Avoid places where the inverter is subjected to direct sunlight, high temperature and high humidity. •...

  • Page 23: Terminal Connection

    Terminal connection diagrams Terminal connection diagrams FM type Sink logic Brake unit (Option) Main circuit terminal Control circuit terminal Jumper Reactor MCCB Motor R/L1 Inrush current Three-phase S/L2 limit circuit AC power T/L3 supply EMC filter Earth (Ground) ON/OFF ∗9 connecter Main circuit Earth...
  • Page 24 Terminal connection diagrams  The function of these terminals can be changed with the input terminal assignment (Pr.178 to Pr.189). (Refer to the Instruction Manual (Detailed).)  Terminal JOG is also used as a pulse train input terminal. Use Pr.291 to choose JOG or pulse. ...
  • Page 25 Terminal connection diagrams CA type Source logic Brake unit (Option) Main circuit terminal Control circuit terminal Jumper Reactor MCCB Motor R/L1 Inrush current Three-phase S/L2 limit circuit AC power T/L3 supply EMC filter Earth (Ground) ON/OFF ∗7 connecter Main circuit Earth (Ground) Control circuit...
  • Page 26 Terminal connection diagrams  The function of these terminals can be changed with the input terminal assignment (Pr.178 to Pr.189). (Refer to the Instruction Manual (Detailed).)  Terminal JOG is also used as a pulse train input terminal. Use Pr.291 to choose JOG or pulse. ...

  • Page 27: Main Circuit Terminals

    Main circuit terminals Main circuit terminals 2.5.1 Details on the main circuit terminals Terminal Refer to Terminal name Terminal function description symbol page Connect these terminals to the commercial power supply. R/L1, Do not connect anything to these terminals when using the high power factor S/L2, AC power input —...
  • Page 28 Main circuit terminals FR-A846-01800(55K) to FR-A846-03610(132K) FR-A846-00620(22K) to FR-A846-01160(45K) Charge lamp Charge lamp Jumper R/L1 S/L2 T/L3 R/L1 S/L2 T/L3 N/- Motor Power supply Power supply Motor Jumper NOTE • Make sure the power cables are connected to the R/L1, S/L2, and T/L3. (Phase need not be matched.) Never connect the power cable to the U, V, and W of the inverter.
  • Page 29 Main circuit terminals (3) For the FR-A846-00470(18.5K) or lower, remove the protective bushes from the wiring cover. For the FR-A846-00620(22K) to FR-A846-01160(45K), remove the protective bushes from the bottom of the inverter. For the FR-A846-01800(55K) or higher, remove the protective bushes from the bottom and the side of the inverter. (Do not remove the protective bushes from the holes that are not used for wiring of cables.) FR-A846-00023(0.4K) to FR-A846-00470(18.5K) FR-A846-00620(22K) to FR-A846-01160(45K)
  • Page 30 Main circuit terminals (4) Fix the cables using a cable gland and a nut, according to the diameter of the holes. For the details such as hole diameters and recommended cable glands, refer to the following table. FR-A846-00023(0.4K) to 00170(5.5K) FR-A846-00250(7.5K) to 00470(18.5K) FR-A846-00620(22K) to 01160(45K) FR-A846-01800(55K) to 03610(132K)
  • Page 31 Main circuit terminals  EMC-compliant cable gland  General-purpose cable gland (5) For the FR-A846-00470(18.5K) or lower, install the wiring cover. (6) Connect cables to the terminals of the inverter. (7) Install the front cover to the inverter. (Refer to page CAUTION ...
  • Page 32 Main circuit terminals 2.5.4 Applicable cables and the wiring length Select a recommended cable size to ensure that the voltage drop will be 2% or less. If the wiring distance is long between the inverter and motor, the voltage drop in the main circuit wires will cause the motor torque to decrease especially at a low speed.
  • Page 33 Main circuit terminals Total wiring length  With induction motor Connect one or more general-purpose motors within the total wiring length shown in the following table. (The wiring length should be 100 m or less under vector control.) Pr.72 setting FR-A846-00023(0.4K) FR-A846-00038(0.75K) FR-A846-00052(1.5K) or higher...
  • Page 34 Main circuit terminals 2.5.5 Earthing (grounding) precautions Always earth (ground) the motor and inverter. Purpose of earthing (grounding) Generally, an electrical apparatus has an earth (ground) terminal, which must be connected to the ground before use. An electrical circuit is usually insulated by an insulating material and encased. However, it is impossible to manufacture an insulating material that can shut off a leakage current completely, and actually, a slight current flows into the case.

  • Page 35: Control Circuit

    Control circuit Control circuit 2.6.1 Details on the control circuit terminals Input signal function of the terminals in can be selected by setting Pr.178 to Pr.196 (I/O terminal function selection). For the details of the control circuit terminal function selection, refer to the Instruction Manual (Detailed). Input signal Terminal Terminal name...
  • Page 36 Control circuit Terminal Terminal name Terminal function description Rated specification symbol 10 VDC 0.4 V Permissible load current When connecting the frequency setting potentiometer at an initial 10 mA Frequency setting status, connect it to the terminal 10. power supply Change the input specifications of the terminal 2 using Pr.73 when 5 VDC 0.5 V connecting it to the terminal 10E.
  • Page 37 Control circuit Output signal Terminal Terminal name Terminal function description Rated specification symbol 1 changeover contact output that indicates that an inverter's protective function has been activated and the outputs are Relay output 1 (fault stopped. Contact capacity 230 output) Fault: discontinuity across B and C (continuity across A and C), VAC 0.3 A (power factor Normal: continuity across Band C (discontinuity across A and C)
  • Page 38 Control circuit Communication Terminal Terminal name Terminal function description symbol With the PU connector, communication can be made through RS-485. (For connection on a 1:1 basis only) Conforming standard: EIA-485 (RS-485) — PU connector Transmission format: Multidrop link Communication speed: 4800 to 115200 bps Wiring length: 500 m TXD+ Inverter transmission terminal...
  • Page 39 Control circuit 2.6.2 Control logic (sink/source) change Change the control logic of input signals as necessary. To change the control logic, change the jumper connector position on the control circuit board. Connect the jumper connector to the connector pin of the desired control logic. The control logic of input signals is initially set to the sink logic (SINK) for the FM type.
  • Page 40 Control circuit Sink logic and source logic • In the sink logic, a signal switches ON when a current flows from the corresponding signal input terminal. Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output signals. •...
  • Page 41 Control circuit 2.6.3 Wiring of control circuit Control circuit terminal layout • Recommended cable gauge: 0.3 to 0.75 mm ∗1 1 F/C +24 SD So SOC S1 S2 PC 5 10E 10 SE SE IPF OL FU PC RL RM RH RT AU STP MRS RES SD SD STF STR JOG...
  • Page 42 Control circuit NICHIFU Co.,Ltd. Cable gauge Blade terminal Insulation cap Crimping tool product number product number product number 0.3 to 0.75 BT 0.75-11 VC 0.75 NH 69 (3) Insert the wires into a socket. When using a single wire or stranded wires without a blade terminal, push the open/close button all the way down with a flathead screwdriver, and insert the wire.
  • Page 43 Control circuit Common terminals of the control circuit (SD, PC, 5, SE) • Terminals SD (sink logic), PC (source logic), 5, and SE are common terminals (0V) for I/O signals. (All common terminals are isolated from each other.) Do not earth (ground) these terminals. Avoid connecting the terminal SD (sink logic) with 5, the terminal PC (source logic) with 5, and the terminal SE with 5.
  • Page 44 Control circuit 2.6.5 When supplying 24 V external power to the control circuit Connect a 24 V external power supply across terminals +24 and SD. Connecting a 24 V external power supply enables I/O terminal ON/OFF operation, operation panel displays, control functions, and communication during communication operation even at power-OFF of inverter's main circuit power supply.
  • Page 45 Control circuit Operation while the 24 V external power is supplied • Fault history and parameters can be read and parameters can be written (when the parameter write from the operation panel is enabled) using the operation panel keys. • The safety stop function is invalid during the 24 V external power supply operation. •...
  • Page 46 Control circuit 2.6.6 Safety stop function Function description The terminals related to the safety stop function are shown below. Terminal Terminal function description symbol Between S1 and SIC, S2 and SIC For input of the safety stop channel 1.  Open: In safety stop mode For input of the safety stop channel 2.

  • Page 47: Operation Panel

    Control circuit Safety stop function operation Output Internal Input terminal Output signal Operation panel indication Input safety Inverter running terminal      power circuit status status So (SO) SAFE E.SAF   ― ― ― Output shutoff (Safe state) Not displayed Not displayed Normal...
  • Page 48 Operation panel (FR-DU08-01) 2.7.1 Differences with the FR-DU08 Item FR-DU08 FR-DU08-01 Applicable model FR-A800 FR-A806 Protective structure IP40 (except for the PU connector) IP55 (except for the PU connector) Outline dimension (WHD [mm]) 7278.517 809619 Number of fixing screws Operation mode indicator...
  • Page 49 STOP/RESET key Used to reset the inverter when the protection function is activated. The setting dial of the Mitsubishi Electric inverters. Turn the setting dial to change the setting of frequency or parameter, etc. Press the setting dial to perform the following operations: Setting dial •...
  • Page 50 Operation panel (FR-DU08-01) 2.7.3 Basic operation of the operation panel For the details of each function, refer to the Instruction Manual (Detailed). Operation mode switchover/Frequency setting External operation mode At power-ON) PU Jog operation mode PU operation mode Alternating (Example) Frequency setting written and complete!! Value change Output current monitor...

  • Page 51: Communication Connectors And Terminals

    Communication connectors and terminals Communication connectors and terminals 2.8.1 PU connector Mounting the operation panel or parameter unit • With a connection cable, the operation panel or the parameter unit can be connected to the inverter. Use the option FR-CB2[ ], or connectors and cables available on the market. (To mount the operation panel, the optional connector (FR-ADP) is required.) Securely insert one end of the connection cable until the stoppers are fixed.
  • Page 52 Communication connectors and terminals Removal and reinstallation of the operation panel • Loosen the four fixing screws on the operation panel and pull out the operation panel. (These screws cannot be removed.) • To reinstall the operation panel, align its connector on the back with the PU connector of the inverter, and insert the operation panel.
  • Page 53 Communication connectors and terminals USB host communication Interface Conforms to USB 1.1 Transmission speed 12 Mbps Wiring length Maximum 5 m Connector USB A connector (receptacle) Format FAT32 Compatible Capacity 1 GB or more (used in the recorder mode of the trace function) USB memory Encryption function Not available...
  • Page 54 Communication connectors and terminals WARNING  While power is ON or when the inverter is running, do not open the front cover. Otherwise you may get an electric shock. 2.8.3 RS-485 terminal block Communication operation Conforming standard EIA-485 (RS-485) Transmission format Multidrop link Communication speed maximum 115200 bps...

  • Page 55: Connection Of Motor With Encoder (Vector Control)

    Connection of motor with encoder (vector control) Connection of motor with encoder (vector control) Using encoder-equipped motors together with a vector control compatible option enables speed, torque, and positioning control operations under orientation control, encoder feedback control, and full-scale vector control. This section explains wiring for use of the FR-A8AP.
  • Page 56 • Motor and switch setting Encoder type selection Terminating resistor Power supply Motor switch (SW3) selection switch (SW1) specification  Mitsubishi Electric standard motor with SF-JR Differential encoder SF-HR Differential Mitsubishi Electric high-efficiency motor Other  ...
  • Page 57 Connection of motor with encoder (vector control) Encoder cable SF-JR/HR/JRCA/HRCA with encoder SF-V5RU, SF-THY F-DPEVSB 12P 0.2 mm D/MS3057-12A F-DPEVSB 12P 0.2 mm D/MS3057-12A Approx. 140 mm Approx. 140 mm Earth cable Earth cable 60 mm 60 mm  D/MS3106B20-29S D/MS3106B20-29S •...
  • Page 58 Connection of motor with encoder (vector control) • Connection terminal compatibility table Motor SF-V5RU, SF-THY SF-JR/HR/JRCA/HRCA (with encoder) Encoder cable FR-V7CBL FR-JCBL Do not connect anything to this. Do not connect anything to this. FR-A8AP terminal Do not connect anything to this. Wiring example •...
  • Page 59 Connection of motor with encoder (vector control) • Position control Vector control dedicated motor (SF-V5RU, SF-THY), 12 V complementary MCCB SF-V5RU, SF-THY ∗7 Three-phase Positioning unit AC power supply MELSEC-Q QD75P[ ]N/QD75P[ ] MCCB MELSEC-L LD75P[ ] Three-phase R/L1 Inverter AC power S/L2 supply...
  • Page 60 Connection of motor with encoder (vector control) Instructions for encoder cable wiring • Use shielded twisted pair cables (0.2 mm or larger) to connect the FR-A8AP. For the wiring to the terminals PG and SD, use several cables in parallel or use a thick cable, according to the wiring length. To protect the cables from noise, run them away from any source of noise (such as the main circuit and power supply voltage).

  • Page 61: Parameter Settings For A Motor With Encoder

    Parameter settings for a motor with encoder 2.10 Parameter settings for a motor with encoder Parameter for the encoder (Pr.359, Pr.369, Pr.851, Pr.852) • Set the encoder specifications. Initial Setting Name Description value range Set when using a motor for which forward rotation Set for the operation at (encoder) is clockwise (CW) viewed from the shaft 120 Hz or less.
  • Page 62 Parameter settings for a motor with encoder Parameter settings for the motor under vector control • Values in indicate initial values. Pr.359/ Pr.369/ Pr.9 Pr.81 Pr.71 Pr.80 Pr.852 Pr.851 Electronic Number Motor name Applied Motor Encoder Number of thermal O/L of motor motor capacity...
  • Page 63 Parameter settings for a motor with encoder Combination with the vector control dedicated motor When using the inverter with a vector control dedicated motor, refer to the table below. • Combination with the SF-V5RU and SF-THY (ND rating) Voltage 400 V class Rated speed 1500 r/min Base frequency...
  • Page 64 Connection of stand-alone option units 2.11 Connection of stand-alone option units The inverter accepts a variety of stand-alone option units as required. Incorrect connection will cause inverter damage or accident. Connect and operate the option unit carefully in accordance with the corresponding option unit manual.
  • Page 65 Connection of stand-alone option units Connection example with the FR-BR-(H) resistor unit ∗2 FR-BR MCCB Motor R/L1 ∗4 Three phase AC S/L2 power supply T/L3 ∗3 FR-BU2 Inverter ∗1 ∗3 10 m or less  When wiring, make sure to match the terminal symbol (P/+, N/-) at the inverter side and at the brake unit (FR-BU2) side.
  • Page 66 Connection of stand-alone option units 2.11.2 Connection of the brake unit (FR-BU) Connect the brake unit (FR-BU(H)) as shown below to improve the braking capability during deceleration. The FR-BU is compatible with the FR-A846-01800(55K) or lower. ∗2 FR-BR MCCB Motor R/L1 Three-phase AC S/L2...
  • Page 67 Connection of stand-alone option units 2.11.3 Connection of the brake unit (BU type) Connect the brake unit (BU type) correctly as shown below. Incorrect connection will damage the inverter. Remove the jumpers across terminals HB and PC and terminals TB and HC of the brake unit and fit one across terminals PC and TB. The BU type is compatible with the FR-A846-01800(55K) or lower.
  • Page 68 Connection of stand-alone option units 2.11.4 Connection of the high power factor converter (FR-HC2) When connecting the high power factor converter (FR-HC2) to suppress power harmonics, perform wiring securely as shown below. Incorrect connection will damage the high power factor converter and the inverter. After making sure that the wiring is correct and secure, set the rated motor voltage in Pr.19 Base frequency voltage (under V/F control) or Pr.83 Rated motor voltage (under other than V/F control) and "2 or 102"...
  • Page 69 Connection of stand-alone option units 2.11.5 Connection of the multifunction regeneration converter (FR-XC) Common bus regeneration mode with harmonic suppression disabled (Pr.416 = "0") When connecting the multifunction regeneration converter (FR-XC) to suppress power harmonics, perform wiring securely as follows. Incorrect connection will damage the multifunction regeneration converter and the inverter. Turn ON switch 1 (connection mode setting switch) in the function selection switch assembly (SW2).
  • Page 70 Connection of stand-alone option units  Never connect the power supply to terminals R/L1, S/L2, and T/L3 on the inverter. Incorrect connection will damage the inverter and the converter.  Remove the jumper across terminals P/+ and P1.  Connect between the inverter terminal P/+ and the converter terminal P/+ and between the inverter terminal N/- and the converter terminal N/- for polarity consistency.
  • Page 71 Connection of stand-alone option units Common bus regeneration mode with harmonic suppression enabled (Pr.416 = "1") When connecting the multifunction regeneration converter (FR-XC) to suppress power harmonics, perform wiring securely as follows. Incorrect connection will damage the multifunction regeneration converter and the inverter. Turn ON switch 1 (connection mode setting switch) in the function selection switch assembly (SW2).
  • Page 72 Connection of stand-alone option units  Never connect the power supply to terminals R/L1, S/L2, and T/L3 on the inverter. Incorrect connection will damage the inverter and the converter.  Connect between the inverter terminal P/+ and the converter terminal P/+ and between the inverter terminal N/- and the converter terminal N/- for polarity consistency.
  • Page 73 Connection of stand-alone option units  Connect between the inverter terminal P/+ and the converter terminal P4 and between the inverter terminal N/- and the converter terminal N/- for polarity consistency. Connecting opposite polarity of terminals P/+ and N/- will damage the converter and the inverter. ...
  • Page 74 Connection of stand-alone option units 2.11.7 Connection of the power regeneration converter (MT-RC) When connecting the power regeneration converter (MT-RC), perform wiring securely as shown below. Incorrect connection will damage the power regeneration converter and the inverter. The MT-RC is applicable to FR-A846-02160(75K) or higher. After making sure that the wiring is correct, set "1"...
  • Page 75 MEMO...
  • Page 76 PRECAUTIONS FOR USE OF THE INVERTER This chapter explains the precautions for use of this product. Always read the instructions before using the equipment. 3.1 Electro-magnetic interference (EMI) and leakage currents ..76 3.2 Power supply harmonics ............82 3.3 Installation of a reactor ............85 3.4 Power-OFF and magnetic contactor (MC) ......86...

  • Page 77: Electro-Magnetic Interference (Emi) And Leakage Currents

    Electro-magnetic interference (EMI) and leakage currents Electro-magnetic interference (EMI) and leakage currents 3.1.1 Leakage currents and countermeasures Capacitances exist between the inverter I/O cables, other cables and earth and in the motor, through which a leakage current flows. Since its value depends on the static capacitances, carrier frequency, etc., low acoustic noise operation at the increased carrier frequency of the inverter will increase the leakage current.
  • Page 78 Electro-magnetic interference (EMI) and leakage currents Installation and selection of the molded case circuit breaker Install a molded case circuit breaker (MCCB) on the power receiving side to protect the wiring at the inverter input side. Select an MCCB according to the inverter input side power factor, which depends on the power supply voltage, output frequency and load.
  • Page 79 Electro-magnetic interference (EMI) and leakage currents NOTE • Install the earth leakage circuit breaker (ELB) on the input side of the inverter. • In the connection earthed-neutral system, the sensitivity current is blunt against a ground fault in the inverter output side. Earthing (Grounding) must conform to the requirements of national and local safety regulations and electrical codes.
  • Page 80 Electro-magnetic interference (EMI) and leakage currents Noise propagation Countermeasure path When devices that handle low-level signals and are liable to malfunction due to electromagnetic noises, e.g. instruments, receivers and sensors, are near the inverter or when the signal cables are run near the inverter, the devices may malfunction due to by air-propagated electromagnetic noises.
  • Page 81 Electro-magnetic interference (EMI) and leakage currents 3.1.3 Built-in EMC filter This inverter is equipped with a built-in EMC filter (capacitive filter) and a common mode choke. These filters are effective in reducing air-propagated noise on the input side of the inverter. To enable the EMC filter, fit the EMC filter ON/OFF connector to the ON position.
  • Page 82 Electro-magnetic interference (EMI) and leakage currents • Switching ON/OFF the filter (1) Before removing a front cover, check to make sure that the indication of the inverter operation panel is OFF, wait for at least 10 minutes after the power supply has been switched OFF, and check that there is no residual voltage using a tester or the like.

  • Page 83: Power Supply Harmonics

    (A DC reactor is built in to the FR-A806.) For the output frequency and output current, we understand that this should be calculated in the conditions under the rated load at the maximum operating frequency.
  • Page 84 Power supply harmonics 3.2.2 Harmonic suppression guidelines in Japan Inverters have a converter section (rectifier circuit) and generate a harmonic current. Harmonic currents flow from the inverter 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 85 Power supply harmonics • Harmonic content (Values of the fundamental current is 100%) Reactor 11th 13th 17th 19th 23rd 25th Used (DC side) Used (AC, DC sides) • Calculation of equivalent capacity P0 of harmonic generating equipment "Equivalent capacity" is the capacity of a 6-pulse converter converted from the capacity of consumer's harmonic generating equipment and is calculated by the following equation: If the sum of equivalent capacities is higher than the limit (Refer to page 83), harmonics must be calculated with the following procedure:...

  • Page 86: Installation Of A Reactor

    Installation of a reactor • 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 Because a DC reactor is built in on the DC side of this product, outgoing harmonic current can be...

  • Page 87: Power-Off And Magnetic Contactor (Mc)

    Power-OFF and magnetic contactor (MC) Power-OFF and magnetic contactor (MC) Inverter input side magnetic contactor (MC) On the inverter input side, it is recommended to provide an MC for the following purposes: (Refer to page 14 for selection.) • To disconnect the inverter from the power supply at activation of a protective function or at malfunctioning of the driving system (emergency stop, etc.).

  • Page 88: Countermeasures Against Deterioration Of The 400 V Class Motor Insulation

    Countermeasures against deterioration of the 400 V class motor insulation Countermeasures against deterioration of the 400 V class motor insulation In the PWM type inverter, a surge voltage attributable to wiring constants is generated at the motor terminals. Especially in a 400 V class motor, the surge voltage may deteriorate the insulation.

  • Page 89: Checklist Before Starting Operation

    Checklist before starting operation Checklist before starting operation The FR-A800 series inverter is a highly reliable product, but incorrect peripheral circuit making or operation/handling method may shorten the product life or damage the product. Before starting operation, always recheck the following points. Refer Check Checkpoint...
  • Page 90 Checklist before starting operation Refer Check Checkpoint Countermeasure page user If the machine must not be restarted when power is restored after a power failure, provide an MC in the inverter's input side and also make up a A countermeasure is provided for sequence which will not switch ON the start signal.

  • Page 91: Failsafe System Which Uses The Inverter

    Failsafe system which uses the inverter Failsafe system which uses the inverter When a fault is detected by the protective function, the protective function activates and outputs a fault signal. However, a fault signal may not be output at an inverter's fault occurrence when the detection circuit or output circuit fails, etc. Although Mitsubishi assures the best quality products, provide an interlock which uses inverter status output signals to prevent accidents such as damage to the machine when the inverter fails for some reason.
  • Page 92 Failsafe system which uses the inverter (d) Checking the motor operating status by the start signal input to the inverter and inverter output current detection signal The output current detection signal (Y12 signal) is output when the inverter operates and currents flows into the motor. Check if Y12 signal is being output while inputting a start signal to the inverter.
  • Page 93 MEMO...
  • Page 94 PROTECTIVE FUNCTIONS This chapter explains the "PROTECTIVE FUNCTIONS" that operates in this product. Always read the instructions before using the equipment. 4.1 Inverter fault and alarm indications ........94 4.2 Reset method for the protective functions......94 4.3 Fault history and the list of fault displays ......95 PROTECTIVE FUNCTIONS...
  • Page 95 Inverter fault and alarm indications Inverter fault and alarm indications • When the inverter detects a fault, depending on the nature of the fault, the operation panel displays an error message or warning, or a protective function activates to trip the inverter. •...
  • Page 96 Fault history and the list of fault displays Fault history and the list of fault displays For details, refer to the Instruction Manual (Detailed). Operation panel indication Name Operation panel indication Name E.ILF Input phase loss HOLD Operation panel lock E.OLT Stall prevention stop LOCD...
  • Page 97 Fault history and the list of fault displays Operation panel indication Name E.EP Encoder phase fault Magnetic pole position E.MP unknown External fault during output E.EF operation Brake transistor alarm E.BE detection E.LCI 4 mA input fault E.PCH Pre-charge fault E.PID PID signal fault E.
  • Page 98 PRECAUTIONS FOR MAINTENANCE AND INSPECTION This chapter explains the "PRECAUTIONS FOR MAINTENANCE AND INSPECTION" for this product. Always read the instructions before using the equipment. 5.1 Inspection item................98 Measurement of main circuit voltages, currents, and powers .123 PRECAUTIONS FOR MAINTENANCE AND INSPECTION...
  • Page 99 Inspection item The inverter is a static unit mainly consisting of semiconductor devices. Daily inspection must be performed to prevent any fault from occurring due to the adverse effects of the operating environment, such as temperature, humidity, dust, dirt and vibration, changes in the parts with time, service life, and other factors.
  • Page 100 Inspection item 5.1.3 Daily and periodic inspection Inspection Corrective action Check Area of Inspection interval Description at fault by the inspection item Periodic occurrence user Daily  Surrounding Check the ambient temperature, humidity, dirt, Improve the  environment corrosive gas, oil mist, etc. environment.
  • Page 101 Inspection item Inspection Corrective action Check Area of Inspection interval Description at fault by the inspection item Periodic occurrence user Daily  Contact the (1) Check that display is normal.  manufacturer. Indication (2) Check for stain.  Clean. Display Stop the equipment Meter Check that reading is normal.
  • Page 102 Inspection item 5.1.4 Checking the inverter and converter modules Preparation • Disconnect the external power supply cables (R/L1, S/L2, T/L3) and motor cables (U, V, W). • Prepare a tester. (For the resistance measurement, use the 100 Ω range.) Checking method Change the polarity of the tester alternately at the inverter terminals R/L1, S/L2, T/L3, U, V, W, P/+, and N/- and check the electric continuity.
  • Page 103 Inspection item 5.1.6 Replacement of parts The inverter consists of many electronic parts such as semiconductor devices. The following parts may deteriorate with age because of their structures or physical characteristics, leading to reduced performance or fault of the inverter. For preventive maintenance, the parts must be replaced periodically. Use the life check function as a guidance of parts replacement.
  • Page 104 Inspection item Replacement procedure of the fan The replacement interval of the cooling fan used for cooling the parts generating heat such as the main circuit semiconductor is greatly affected by the ambient temperature. When unusual noise and/or vibration are noticed during inspection, the cooling fan must be replaced immediately.
  • Page 105 Inspection item  Removal of the cooling fan (FR-A846-00620(22K) to 01160(45K)) (1) Remove the installation screws, and then remove the fan cover. Fan cover Installation screw (2) Disconnect the fan connectors. Fan connector (3) Remove the installation screws, and then remove the fan. Installation screw PRECAUTIONS FOR MAINTENANCE AND INSPECTION...
  • Page 106 Inspection item  Removal of the cooling fan (FR-A846-01800(55K) to 03610(132K)) (1) Remove the installation screws, and then remove the fan cover. Fan cover Installation screw (2) Disconnect the fan connectors. Fan connector (3) Remove the installation screws, and then remove the fan. Installation screw PRECAUTIONS FOR MAINTENANCE AND INSPECTION...
  • Page 107 Inspection item  Reinstallation of the cooling fan (FR-A846-00250(7.5K) to 00470(18.5K)) (1) After confirming the orientation of the fan, reinstall the fan so that the "AIR FLOW" faces up. Then, fix the fan with the installation screws. (tightening torque 1.4 to 1.9 N•m) AIR FLOW <Fan side>...
  • Page 108 Inspection item  Reinstallation of the cooling fan (FR-A846-00620(22K) to 01160(45K)) (1) After confirming the orientation of the fan, reinstall the fan so that the "AIR FLOW" faces up. Then, fix the fan with the installation screws. (tightening torque 1.4 to 1.9 N•m) AIR FLOW <Fan side>...
  • Page 109 Inspection item  Reinstallation of the cooling fan (FR-A846-01800(55K) to 03610(132K)) (1) After confirming the orientation of the fan, reinstall the fan so that the "AIR FLOW" faces up. Then, fix the fan with the installation screws. (tightening torque 1.4 to 1.9 N•m) AIR FLOW <Fan side>...
  • Page 110 Inspection item  Removal of the internal fan (FR-A846-00170(5.5K) or lower) (1) Remove the inverter front cover. (Refer to page (2) Move the fan connector case, and then remove the fan connector. Fan connector Connector case (3) Remove the installation screws, and then remove the bracket. Bracket Installation screw (4) Remove the installation screws, and then remove the fan.
  • Page 111 Inspection item  Removal of the internal fan (FR-A846-00250(7.5K) to 00470(18.5K)) (1) Remove the inverter front cover. (Refer to page (2) Remove the installation screws, and then remove the protective cover. Protective cover Installation screw (3) Move the fan connector case, and then remove the fan connector. Fan connector Connector case (4) Remove the bracket.
  • Page 112 Inspection item  Removal of the internal fan (FR-A846-00620(22K) to 01160(45K)) (1) Remove the inverter front cover. (Refer to page (2) Move the fan connector case, and then remove the fan connector. Fan connector Connector case (3) Remove the installation screws and the bracket, and then remove the fan. Installation screw Bracket PRECAUTIONS FOR MAINTENANCE AND INSPECTION...
  • Page 113 Inspection item  Removal of the internal fan (upper) (FR-A846-01800(55K) to 02600(90K)) (1) Remove the inverter front cover. (Refer to page (2) Move the fan connector case, and then remove the fan connector. Fan connector Connector case (3) Remove the installation screws, and then remove the fan. Installation screw ...
  • Page 114 Inspection item  Removal of the internal fan (upper) (FR-A846-03250(110K) or higher) (1) Remove the inverter front cover. (Refer to page (2) Move the fan connector case, and then remove the fan connector. Connector case Fan connector (3) Remove the installation screws, and then remove the bracket. Installation screw Bracket (4) Remove the installation screws, and then remove the fan.
  • Page 115 Inspection item  Reinstallation of the internal fan (FR-A846-00170(5.5K) or lower) (1) After confirming the orientation of the fan, fix the fan to the bracket with the installation screws so that the "AIR FLOW" arrow on the fan side faces up when the fan is installed to the inverter. (tightening torque 1.4 to 1.9 N•m) Bracket AIR FLOW <Fan side>...
  • Page 116 Inspection item  Reinstallation of the internal fan (FR-A846-00250(7.5K) to 00470(18.5K)) (1) After confirming the orientation of the fan, fix the fan to the bracket with the installation screws so that the "AIR FLOW" arrow on the fan side faces up when the fan is installed to the inverter. (tightening torque 1.4 to 1.9 N•m) Bracket AIR FLOW <Fan side>...
  • Page 117 Inspection item  Reinstallation of the internal fan (FR-A846-00620(22K) to 01160(45K)) (1) Fix the fan to the inverter with the bracket and the installation screws. (tightening torque 1.4 to 1.9 N•m) After confirming the orientation of the fan, reinstall the fan so that air flows as shown below. (The "AIR FLOW"...
  • Page 118 Inspection item  Reinstallation of the internal fan (upper) (FR-A846-01800(55K) to 02600(90K)) (1) Fix the fan to the inverter with the installation screws. (tightening torque 1.4 to 1.9 N•m) After confirming the orientation of the fan, reinstall the fan so that air flows as shown below. (The "AIR FLOW"...
  • Page 119 Inspection item  Reinstallation of the internal fan (lower) (FR-A846-01800(55K) to 02600(90K)) (1) Fix the fan to the bracket with the installation screws. (tightening torque 1.4 to 1.9 N•m) After confirming the orientation of the fan, reinstall the fan so that air flows as shown below. (The "AIR FLOW"...
  • Page 120 Inspection item  Reinstallation of the internal fan (upper) (FR-A846-03250(110K) or higher) (1) Fix the fan to the bracket with the installation screws. (tightening torque 1.4 to 1.9 N•m) After confirming the orientation of the fan, reinstall the fan so that air flows as shown below. (The "AIR FLOW"...
  • Page 121 Inspection item  Reinstallation of the internal fan (lower) (FR-A846-03250(110K) or higher) (1) Fix the fan to the bracket with the installation screws. (tightening torque 1.4 to 1.9 N•m) After confirming the orientation of the fan, reinstall the fan so that air flows as shown below. (The "AIR FLOW"...
  • Page 122 Inspection item Smoothing capacitors A large-capacity aluminum electrolytic capacitor is used for smoothing in the DC section of the main circuit, and an aluminum electrolytic capacitor is used for stabilizing the control power in the control circuit. Adverse effects from ripple currents deteriorate capacitors.
  • Page 123 Inspection item Removal and reinstallation precautions Precautions to be taken when removing or reinstalling the control circuit terminal block are shown below. Observe the following precautions and handle the inverter properly to avoid malfunctions or failures. • To remove or reinstall the control circuit terminal block, keep it upright so that it is parallel with the inverter. •...
  • Page 124 Measurement of main circuit voltages, currents, and powers Measurement of main circuit voltages, currents, and powers Since the voltages and currents on the inverter power supply and output sides include harmonics, measurement data depends on the instruments used and circuits measured. When instruments for commercial frequency are used for measurement, measure the following circuits with the instruments given on the next page.
  • Page 125 Measurement of main circuit voltages, currents, and powers Measuring points and instruments Item Measuring point Measuring instrument Remarks (reference measured value) Across R/L1 and S/L2, Commercial power supply Power supply voltage S/L2 and T/L3, Within permissible AC voltage fluctuation T/L3 and R/L1 (Refer to page 128.)

  • Page 126: Measurement Of Currents

    Measurement of main circuit voltages, currents, and powers 5.2.1 Measurement of powers Use digital power meters (for inverter) for the both of inverter input and output side. 5.2.2 Measurement of voltages Inverter input side Use digital power meters (for inverters) for the input side voltage. Inverter output side When using a measuring instrument, use a digital power meter for inverters as the inverter outputs PWM-controlled square wave voltage.

  • Page 127: Insulation Resistance Test Using Megger

    Measurement of main circuit voltages, currents, and powers 5.2.7 Insulation resistance test using megger For the inverter, conduct the insulation resistance test on the main circuit only as shown below and do not perform the test on the control circuit. (Use a 500 VDC megger.) NOTE •...

  • Page 128: Specifications

    SPECIFICATIONS This chapter explains the "SPECIFICATIONS" of this product. Always read the instructions before using the equipment. 6.1 Inverter rating................128 6.2 Common specifications ............129 6.3 Inverter outline dimension drawings ........131 SPECIFICATIONS...

  • Page 129: Inverter Rating

    147 150 153 189 193 Approx. mass (kg)  The applicable motor capacity indicated is the maximum capacity applicable for use of the Mitsubishi Electric 4-pole standard motor.  The rated output capacity indicated assumes that the output voltage is 440 V.

  • Page 130: Common Specifications

    Common specifications Common specifications Soft-PWM control, high carrier frequency PWM control (selectable among V/F control, Advanced magnetic flux vector Control method control, Real sensorless vector control), Optimum excitation control, vector control , and PM sensorless vector control  0.2 to 590 Hz (The upper-limit frequency is 400 Hz under Advanced magnetic flux vector control, Real sensorless vector Output frequency range control, vector control , and PM sensorless vector control.)
  • Page 131 Common specifications Overcurrent trip during acceleration, Overcurrent trip during constant speed, Overcurrent trip during deceleration or stop, Regenerative overvoltage trip during acceleration, Regenerative overvoltage trip during constant speed, Regenerative overvoltage trip during deceleration or stop, Inverter overload trip, Motor overload trip, Heat sink overheat, Instantaneous power failure, Undervoltage, Input phase loss , Stall prevention stop, Loss of synchronism detection ...

  • Page 132: Inverter Outline Dimension Drawings

    Inverter outline dimension drawings Inverter outline dimension drawings FR-A846-00023(0.4K) to 00170(5.5K) 2-8 hole (18.5) 18.5 (Unit: mm) FR-A846-00250(7.5K) to 00470(18.5K) 2-φ10 hole 4-φ20 hole (18.5) 18.5 (Unit: mm) SPECIFICATIONS...
  • Page 133 Inverter outline dimension drawings FR-A846-00620(22K) to 01160(45K) 4-φ25 hole 2-φ12 hole 22.5 (22.5) (Unit: mm) FR-A846-01800(55K) to 03610(132K) 4-φ25 hole 3-φ15 hole (35) 456.6 Inverter Model FR-A846-01800(55K) to 02600(90K) 1360 1334 1314 FR-A846-03250(110K), 03610(132K) 1510 1482 1464 (Unit: mm) SPECIFICATIONS...
  • Page 134 Inverter outline dimension drawings Operation panel (FR-DU08-01) 80±0.5 68±0.5 5±0.3 -0.5 (Unit: mm) NOTE • For the outline dimensions of the dedicated motors, refer to the Instruction Manual (Detailed). SPECIFICATIONS...
  • Page 135 MEMO...

  • Page 136: Appendix

    APPENDIX APPENDIX provides the reference information for use of this product. Refer to APPENDIX as required. Appendix 1 Differences and compatibility with the FR-A840 ..136 Appendix 2 Instructions for compliance with the EU Directives..137 Appendix 3 Instructions for UL and cUL ........141 Appendix 4 Instructions for EAC.............143...

  • Page 137: Appendix 1 Differences And Compatibility With The Fr-A840

    Appendix 1 Differences and compatibility with the FR-A840 Item FR-A840 FR-A846 Enclose type (IP20): FR-A840-00620(22K) or Protective structure lower Dust- and water-proof type (IP55): all capacities Open type (IP00): FR-A840-00770(30K) or higher Multiple rating SLD, LD, ND (initial setting), HD rating LD, ND rating (initial setting) (Pr.570 Multiple rating (Setting range “0 to 3”)

  • Page 138: Appendix 2 Instructions For Compliance With The Eu Directives

    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 EMC Directive We declare that this inverter conforms with the EMC Directive and affix the CE marking on the inverter.
  • Page 139  Note Ensure the EMC filter is enabled, install the product as stated below, and then carry out any wiring. • This inverter is equipped with an EMC filter. Enable the EMC filter. (For details, refer to page 80.) • Connect the inverter to an earthed (grounded) power supply. •...
  • Page 140 Low Voltage Directive We have self-confirmed our inverters as products compliant to the Low Voltage Directive and affix the CE marking on the inverters. • Low Voltage Directive: 2014/35/EU • Conforming standard: EN 61800-5-1:2007  Outline of instructions • Do not use an earth leakage current breaker as an electric shock protector without connecting the equipment to the earth.
  • Page 141 Pr.9 = 50% setting of Pr.9 = 100% setting characteristic is shown on the left.) inverter rating* of inverter rating* 1, *2 • When using the Mitsubishi Electric constant- 30 Hz or more* 30 Hz torque motor 20 Hz or more*...

  • Page 142: Appendix 3 Instructions For Ul And Cul

    Appendix 3 Instructions for UL and cUL (Standard to comply with: UL 508C, CSA C22.2 No.274-13) General precaution CAUTION - Risk of Electric Shock - The bus capacitor discharge time is 10 minutes. Before starting wiring or inspection, switch power off, wait for more than 10 minutes.
  • Page 143 Pr.9 = 50% setting of Pr.9 = 100% setting operation characteristic is shown on the left.) inverter rating* of inverter rating* 1, *2 • When using the Mitsubishi Electric constant- 30 Hz or more* 30 Hz torque motor 20 Hz or more*...

  • Page 144: Appendix 4 Instructions For Eac

    • Authorized sales representative (importer) in the CU area The authorized sales representative (importer) in the CU area is shown below. Name: Mitsubishi Electric (Russia) LLC Address: 52, bld 1 Kosmodamianskaya Nab 115054, Moscow, Russia Phone: +7 (495) 721-2070...

  • Page 145: Appendix 5 Restricted Use Of Hazardous Substances In Electronic And Electrical Products

    Appendix 5 Restricted Use of Hazardous Substances in Electronic and Electrical Products The mark of restricted use of hazardous substances in electronic and electrical products is applied to the product as follows based on the “Management Methods for the Restriction of the Use of Hazardous Substances in Electrical and Electronic Products”...
  • Page 146 4. Exclusion of responsibility for compensation against loss of opportunity, secondary loss, etc. Regardless of the gratis warranty term, Mitsubishi Electric shall not be liable for compensation to: Damages caused by any cause found not to be the responsibility of Mitsubishi Electric.
  • Page 147 • The copyright and other rights of the enclosed CD-ROM all belong to Mitsubishi Electric Corporation. • No part of the enclosed CD-ROM may be copied or reproduced without the permission of Mitsubishi Electric Corporation. • Specifications of the enclosed CD-ROM are subject to change for modification without notice.
  • Page 148 MEMO...
  • Page 149 REVISIONS *The manual number is given on the bottom left of the back cover. Revision Date *Manual Number Revision Feb. 2014 IB(NA)-0600531ENG-A First edition Apr. 2014 IB(NA)-0600531ENG-B Addition • FR-A846-00023(0.4K) to 00170(5.5K) Oct. 2014 IB(NA)-0600531ENG-C Addition • FR-A846-00620(22K) to 01160(45K) Dec.
  • Page 150 FR-A800/A800 Plus Series Instruction Manual Supplement Emergency drive Magnetic flux Sensorless Sensorless Sensorless Magnetic flux Magnetic flux This function is used in case of emergency such as a fire to forcibly continue inverter operation to drive a motor without activating protective functions even if the inverter detects a fault. Using this function may cause damage of the motor or the inverter because driving the motor is given the highest priority.
  • Page 151  Connection diagram • A connection diagram of the emergency drive (commercial mode) is as follows. MCCB R/L1 S/L2 T/L3 Emergency drive in operation Emergency drive execution Fault output during emergency drive ALM3 Inverter/bypass Reset 24VDC Be careful of the capacity of the sequence output terminals. The applied terminals differ by the settings of Pr.190 to Pr.196 (Output terminal function selection).
  • Page 152  Emergency drive execution sequence • When the X84 signal is ON for 3 seconds, the emergency drive is activated. • The Y65 signal turns ON during emergency drive operation. • "ED" appears on the operation panel during emergency drive operation. •...
  • Page 153 • The following diagram shows the operation of the emergency drive function (in the retry / output shutoff mode or in the fixed frequency mode (Pr.523 = "211")). Emergency drive continued Continuous operation except in case of critical faults Emergency drive finished (such as E.PUE) Retry in case of critical faults ALM3...
  • Page 154  Emergency drive operation selection (Pr.523, Pr.524) • Use Pr.523 Emergency drive mode selection to select the emergency drive operation. Set a value in the hundreds place to select the operation when a valid protective function is activated (critical fault) during emergency drive.
  • Page 155  Electronic bypass during emergency drive (Pr.136, Pr.139, Pr.57) • For selecting the commercial mode (Pr.523 = "3[][], 4[][]"), setting is required as follows. Set Pr.136 MC switchover interlock time and Pr.139 Automatic switchover frequency from inverter to bypass operation and assign MC2 and MC3 signals to output terminals. When the CS signal is assigned to an input terminal, set Pr.57 Restart coasting time ≠...
  • Page 156  PID control during emergency drive operation • During emergency drive operation in the PID control mode, the operation is performed under PID control using the Pr.524 setting as a set point. Input the measured values in the method set in Pr.128 or Pr.753. •...
  • Page 157 • The fault output during emergency drive operation is as follows. Pr.190 to Pr.196 setting Signal Description Positive Negative logic logic Turns ON at the occurrence of a fault that causes the above-mentioned "retry" or "output shutoff" during emergency drive operation. Output when a fault occurs during emergency drive operation.
  • Page 158 Forward rotation output (Y30) signal and Reverse rotation output (Y31) signal The Forward rotation output (Y30) signal and Reverse rotation output (Y31) signal become available under encoder feedback control. • Under Vector control or encoder feedback control, the Forward rotation output (Y30) signal or the Reverse rotation output (Y31) signal is output according to the actual rotation direction of the motor.
  • Page 159 HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN FR-A806 MODEL INSTRUCTION MANUAL (HARDWARE) MODEL 1A2-P56 CODE IB(NA)-0600531ENG-G(1904)MEE Printed in Japan Specifications subject to change without notice.

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