Mitsubishi Electric FR-A741-11K Manuals

Table of Contents

• • 3

    Table of Contents
  • 6

    Specifications

• 8

  1 Outline

  • 8

    Product Checking and Parts Identification
  • 9

    Inverter and Peripheral Devices
    • 10

      Peripheral Devices
  • 11

    Method of Removal and Reinstallation of the
  • 13

    Installation of the Inverter and Enclosure Design
    • 13

      Inverter Installation Environment
    • 16

      Cooling System Types for Inverter Enclosure
    • 17

      Inverter Placement

• 19

  2 Wiring

  • 19

    Terminal Connection Diagram
  • 20

    Main Circuit Terminal Specifications
    • 20

      Specification of Main Circuit Terminal
    • 21

      Terminal Arrangement of the Main Circuit Terminal, Power Supply and the Motor Wiring
    • 23

      Cables and Wiring Length
    • 26

      When Connecting the Control Circuit and the Main Circuit Separately to the Power Supply (Separate Power)
  • 27

    Control Circuit Specifications
    • 27

      Control Circuit Terminals
    • 30

      Changing the Control Logic
    • 32

      Control Circuit Terminal Layout
    • 33

      Wiring Instructions
    • 33

      When Connecting the Operation Panel Using a Connection Cable
    • 34

      Terminal Block
    • 34

      Communication Operation
  • 35

    Connection of Motor With Encoder (Vector Control)
    • 38

      Speed Control
    • 38

      Torque Control
    • 39

      Position Control
    • 40

      Initial Setting

• 42

  3 Precautions for Use of the Inverter

  • 42

    EMC and Leakage Currents
    • 42

      Leakage Currents and Countermeasures
    • 44

      EMC Measures
    • 46

      Power Supply Harmonics
    • 46

      Harmonic Suppression Guideline
  • 48

    Power-Off and Magnetic Contactor (MC)
  • 49

    Inverter-Driven 400V Class Motor
  • 50

    Precautions for Use of the Inverter
  • 52

    Failsafe of the System Which Uses the Inverter
  • 53

    Failsafe of the System Which Uses the Inverter 45

• 54

  4 Drive the Motor

  • 54

    Step of Operation
  • 55

    Operation Panel (FR-DU07)
    • 55

      Parts of the Operation Panel (FR-DU07)
    • 56

      Basic Operation (Factory Setting)
    • 57

      Operation Lock (Press [MODE] for an Extended Time (2S))
    • 58

      Monitoring of Output Current and Output Voltage
    • 58

      First Priority Monitor
    • 58

      Setting Dial Push
    • 59

      Change the Parameter Setting Value
    • 60

      Parameter Clear, All Parameter Clear
    • 61

      Parameter Copy and Parameter Verification
    • 62

      Operation Display
  • 63

    Before Operation
    • 63

      Simple Mode Parameter List
    • 64

      Overheat Protection of the Motor By the Inverter (Pr. 9)
    • 65

      When the Rated Motor Frequency Is 50Hz (Pr. 3)
    • 66

      Increase the Starting Torque (Pr. 0)
    • 67

      Limit the Maximum and Minimum Output Frequency (Pr. 1, Pr. 2)
    • 68

      Change Acceleration and Deceleration Time (Pr. 7, Pr. 8)
    • 69

      Selection of the Start Command and Frequency Command Locations (Pr. 79)
    • 70

      Large Starting Torque and Low Speed Torque Are Necessary (Advanced Magnetic Flux Vector Control, Real Sensorless Vector Control) (Pr. 71, Pr. 80, Pr. 81, Pr. 800)
    • 71

      Test Run
    • 73

      Higher Accuracy Operation Using a Motor With Encoder (Vector Control) (Pr.71, Pr.80, Pr.81, Pr.359, Pr.369, Pr.800)
    • 78

      To Exhibit the Best Performance of the Motor Performance (Offline Auto Tuning)
    • 83

      Operation Method
    • 83

      High Accuracy Operation Unaffected By the Motor Temperature (Online Auto Tuning) (Pr. 95)
    • 84

      To Perform High Accuracy/Fast Response Operation (Gain Adjustment of Real Sensorless Vector Control and Vector Control) (Pr. 818 to Pr. 821, Pr. 880)
  • 90

    Start/Stop From the Operation Panel (PU Operation Mode)
    • 90

      Set the Set Frequency to Operate (Example: Performing Operation at 30Hz)
    • 91

      Use the Setting Dial Like a Potentiometer to Perform Operation
    • 92

      Use Switches to Give a Start Command and a Frequency Command (Multi-Speed Setting)
    • 92

      Operation Mode
    • 93

      Perform Frequency Setting By Analog (Voltage Input)
    • 94

      Perform Frequency Setting By Analog (Current Input)
  • 95

    Make a Start and Stop With Terminals (External Operation)
    • 95

      Use the Set Frequency Set By the Operation Panel (Pr. 79 = 3)
    • 96

      Use Switches to Give a Start Command and a Frequency Command (Multi-Speed Setting) (Pr. 4 to Pr. 6)
    • 97

      External Operation
    • 98

      Perform Frequency Setting By Analog (Voltage Input)
    • 99

      Change the Frequency (60Hz) of the Maximum Value of Potentiometer (At 5V, Initial Value)
    • 100

      Perform Frequency Setting By Analog (Current Input)
    • 101

      Change the Frequency (60Hz) of the Maximum Value of Potentiometer (At 20Ma, Initial Value)
  • 102

    Parameter List
    • 102

      List of Parameters Classified By Purpose of Use
    • 105

      Parameter List

• 146

  5 Troubleshooting

  • 146

    Reset Method of Protective Function
  • 147

    List of Fault or Alarm Display
  • 148

    Causes and Corrective Actions
  • 163

    Correspondences Between Digital and Actual Characters
  • 164

    Check and Clear of the Faults History
  • 166

    Check First When You Have Troubles
    • 166

      Motor Will Not Start
    • 166

      Motor Generates Abnormal Noise
    • 167

      Inverter Generates Abnormal Noise
    • 167

      Motor Generates Heat Abnormally
    • 167

      Motor Rotates in Opposite Direction
    • 167

      Speed Greatly Differs From the Setting
    • 167

      Acceleration/Deceleration Is Not Smooth
    • 167

      Motor Current Is Large
    • 168

      Speed Varies During Operation
    • 168

      Operation Mode Is Not Changed Properly
    • 168

      Operation Panel (FR-DU07) Display Is Not Operating
    • 168

      POWER Lamp Is Not Lit
    • 168

      Parameter Write Cannot Be Performed

• 169

  6 Precautions for Maintenance and Inspection

  • 169

    Inspection Item
    • 169

      Daily Inspection
    • 169

      Periodic Inspection
    • 170

      Daily and Periodic Inspection
    • 171

      Display of the Life of the Inverter Parts
    • 172

      Checking the Inverter and Converter Modules
    • 173

      Cleaning
    • 173

      Replacement of Parts
  • 176

    Measurement of Main Circuit Voltages, Currents and Powers
    • 178

      Measurement of Powers
    • 178

      Measurement of Voltages and Use of PT
    • 179

      Measurement of Currents
    • 179

      Use of CT and Transducer
    • 179

      Measurement of Inverter Input Power Factor
    • 180

      Measurement of Converter Output Voltage (Across Terminals P/+ - N/-)
    • 180

      Measurement of Inverter Output Frequency
    • 180

      Insulation Resistance Test Using Megger
    • 180

      Pressure Test

• 181

  7 Specifications

  • 181

    Rating
    • 181

      Inverter Rating
    • 183

      Motor Rating
  • 184

    Common Specifications
  • 185

    Outline Dimension Drawings
    • 185

      Inverter Outline Dimension Drawings
    • 190

      Dedicated Motor Outline Dimension Drawings
  • 194

    Installation of the Heatsink Portion Outside the Enclosure for Use
    • 194

      Protrusion of Heatsink
      • 196

        Appendices

• 196

  Appendix 1 Main Differences and Compatibilities With the FR-A700 Series

• 197

  Appendix 2 Instructions for UL and Cul Compliance

• 199

  Appendix 3 Control Mode-Based Parameter (Function) Correspondence Table and Instruction Code List