Omron VARISPEED G7 Instruction Manual
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Omron VARISPEED G7 Instruction Manual

Omron VARISPEED G7 Instruction Manual

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Table of Contents

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Manual No.
TOE-S616-60.2
VARISPEED G7
General purpose inverter (Advanced Vector Control)

INSTRUCTION MANUAL

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Summary of Contents for Omron VARISPEED G7

  • Page 1: Instruction Manual

    Manual No. TOE-S616-60.2 VARISPEED G7 General purpose inverter (Advanced Vector Control) INSTRUCTION MANUAL...
  • Page 2 MODEL: CIMR-G7C 200V CLASS 0.4 to 110kW (1.2 to 160kVA) 400V CLASS 0.4 to 300kW (1.2 to 460kVA) Upon receipt of the product and prior to initial operation, read these instructions thoroughly, and retain for future reference. YASKAWA MANUAL NO. TOE-S616-60.2...

  • Page 4: General Precautions

    • The diagrams in this manual may be indicated without covers or safety shields to show details. Be sure to restore covers or shields before operating the Units and run the Units according to the instructions described in this manual.

  • Page 5: Safety Information

    The following conventions are used to indicate precautions in this manual. Failure to heed pre- cautions provided in this manual can result in serious or possibly even fatal injury or damage to the products or to related equipment and systems.

  • Page 6: Safety Precautions

    • Always hold the case when carrying the Inverter. If the Inverter is held by the front cover, the main body of the Inverter may fall, possibly resulting in injury. • Attach the Inverter to a metal or other noncombustible material.

  • Page 7: Trial Operation

    CAUTION • Do not connect electromagnetic switches or contactors to the output circuits. If a load is connected while the Inverter is operating, surge current will cause the overcurrent protection circuit inside the Inverter to operate. Setting User Constants CAUTION •...

  • Page 8: Maintenance And Inspection

    Failure to heed these warning can result in electric shock. CAUTION • A CMOS IC is used in the control board. Handle the control board and CMOS IC carefully. The CMOS IC can be destroyed by static electricity if touched directly.
  • Page 9 Warning Information and Position There is warning information on the Inverter in the position shown in the following illustration. Always heed the warnings. Warning information position Warning information position Illustration shows the CIMR-G7C2018 Illustration shows the CIMR-G7C20P4 Warning Information Ÿ...
  • Page 10 Registered Trademarks The following registered trademarks are used in this manual. DeviceNet is a registered trademark of the ODVA (Open DeviceNet Vendors Association, • Inc.). InterBus is a registered trademark of Phoenix Contact Co. • ControlNet is a registered trademark of ControlNet International, Ltd.
  • Page 11 viii...

  • Page 12: Table Of Contents

    Nameplate Information ....................1-3 Component Names......................1-5 Exterior and Mounting Dimensions...............1-7 Open Chassis Inverters (IP00) ..................1-7 Enclosed Wall-mounted Inverters (NEMA1 Type 1) ............1-7 Checking and Controlling the Installation Site ..........1-9 Installation Site ....................... 1-9 Controlling the Ambient Temperature ................1-9 Protecting the Inverter from Foreign Matter..............
  • Page 13 Trial Operation .................4-1 Trial Operation Procedure ................4-2 Trial Operation Procedures ................4-3 Setting the Power Supply Voltage Jumper (400 V Class Inverters of 55 kW or Higher) 4-3 Power ON........................4-3 Checking the Display Status ..................4-4 Basic Settings......................... 4-5 Settings for the Control Methods..................
  • Page 14 T: Motor Autotuning ......................5-74 U: Monitor Constants ....................5-75 Factory Settings that Change with the Control Method (A1-02) ........5-83 Factory Settings that Change with the Inverter Capacity (o2-04) ......... 5-86 Constant Settings by Function..........6-1 Frequency Reference ...................6-2 Selecting the Frequency Reference Source ..............6-2 Using Multi-Step Speed Operation .................
  • Page 15 Limiting Motor Torque (Torque Limit Function) ............6-41 Preventing Motor Stalling During Operation ..............6-43 Changing Stall Prevention Level during Operation Using an Analog Input ....6-44 Detecting Motor Torque ....................6-44 Changing Overtorque and Undertorque Detection Levels Using an Analog Input ..6-48 Motor Overload Protection ...................
  • Page 16 If the Motor Does Not Operate..................7-18 If the Direction of the Motor Rotation is Reversed ............7-19 If the Motor Does Not Put Out Torque or If Acceleration is Slow ........7-20 If the Motor Operates Higher Than the Reference ............7-20 If the Slip Compensation Function Has Low Speed Precision........7-20...
  • Page 17 Motor Application Precautions ..............10-10 Using the Inverter for an Existing Standard Motor............10-10 Using the Inverter for Special Motors ................. 10-11 Power Transmission Mechanism (Speed Reducers, Belts, and Chains) ....10-11 Conformance to CE Markings ..............10-12 CE Markings ....................... 10-12 Requirements for Conformance to CE Markings............
  • Page 18 Handling Inverters This chapter describes the checks required upon receiving or installing an Inverter. Varispeed G7 Introduction ........... 1-2 Confirmations upon Delivery........1-3 Exterior and Mounting Dimensions ......1-7 Checking and Controlling the Installation Site .....1-9 Installation Orientation and Space ......1-10 Removing and Attaching the Terminal Cover .... 1-11 Removing/Attaching the Digital Operator and Front Cover............1-12...
  • Page 19 Varispeed G7 Introduction Varispeed G7 Models es: 200 V and 400 V. Maximum The Varispeed G7 Series of Inverters included two Inverters in two voltage class motor capacities vary from 0.4 to 300 kW (41 models). Table 1.1 Varispeed G7 Models Specifications...

  • Page 20: Confirmations Upon Delivery

    Are any screws or other components Use a screwdriver or other tools to check for tightness. loose? If you find any irregularities in the above items, contact the agency from which you purchased the Inverter or your Yaskawa representative immediately. Nameplate Information There is a nameplate attached to the side of each Inverter.

  • Page 21: Inverter Specifications

    Enclosed Wall-mounted Type (IEC IP20, NEMA 1 Type 1) The Inverter is structured so that the Inverter is shielded from the exterior, and can thus be mounted to the interior wall of a standard building (not necessarily enclosed in a control panel). The protective structure con- forms to the standards of NEMA 1 in the USA.

  • Page 22: Component Names

    Confirmations upon Delivery Component Names Inverters of 15 kW or Less The external appearance and component names of the Inverter are shown in Fig 1.4. The Inverter with the ter- minal cover removed is shown in Fig 1.5. Top protective cover...
  • Page 23 Inverters of 18.5 kW or More The external appearance and component names of the Inverter are shown in Fig 1.6. The Inverter with the ter- minal cover removed is shown in Fig 1.7. Mounting holes Inverter cover Cooling fan Front cover...

  • Page 24: Exterior And Mounting Dimensions

    400 V Class Inverters of 30 to 45 kW Fig 1.8 Exterior Diagrams of Open Chassis Inverters Enclosed Wall-mounted Inverters (NEMA1 Type 1) Exterior diagrams of the Enclosed Wall-mounted Inverters (NEMA1 Type 1) are shown below. Grommet 200 V/400 V Class Inverters of 0.4 to 15 kW 200 V Class Inverters of 18.5 or 22 kW...
  • Page 25 505 1245 360 370 850 820 2097 853 2950 2388 1002 3390 575 925 380 445 895 160 580 1325 380 445 925 895 400 140 2791 1147 3938 Under development * Same for Open Chassis and Enclosed Wall-mounted Inverters.

  • Page 26: Checking And Controlling The Installation Site

    200 or 400 V Class Inverter with an output of 15 kW or less in a panel. Observe the following precautions when mounting the Inverter. Install the Inverter in a clean location free from oil mist and dust. It can be installed in a totally enclosed •...

  • Page 27: Installation Orientation And Space

    1. The same space is required horizontally and vertically for both Open Chassis (IP00) and Enclosed Wall- mounted (IP20, NEMA 1 Type 1) Inverters. 2. Always remove the protection covers before installing a 200 or 400 V Class Inverter with an output of 15 kW or less in a panel.

  • Page 28: Removing And Attaching The Terminal Cover

    For Inverters with an output of 15 kW or less, insert the tab on the top of the terminal cover into the grove on the Inverter and press in on the bottom of the terminal cover until it clicks into place.

  • Page 29: Removing/Attaching The Digital Operator And Front Cover

    Removing the Digital Operator Press the lever on the side of the Digital Operator in the direction of arrow 1 to unlock the Digital Operator and lift the Digital Operator in the direction of arrow 2 to remove the Digital Operator as shown in the follow- ing illustration.

  • Page 30: Removing The Front Cover

    Removing the Front Cover Press the left and right sides of the front cover in the directions of arrows 1 and lift the bottom of the cover in the direction of arrow 2 to remove the front cover as shown in the following illustration.
  • Page 31 Fig 1.15 Mounting the Digital Operator 1. Do not remove or attach the Digital Operator or mount or remove the front cover using methods other than those described above, otherwise the Inverter may break or malfunction due to imperfect contact.

  • Page 32: Inverters Of 18.5 Kw Or More

    Digital Operator is mounted to it. 2. Insert the tab on the top of the front cover into the slot on the Inverter and press in on the cover until it clicks into place on the Inverter.

  • Page 34: Wiring

    Wiring This chapter describes wiring terminals, main circuit terminal connections, main circuit termi- nal wiring specifications, control circuit terminals, and control circuit wiring specifications. Connections to Peripheral Devices......2-2 Connection Diagram ............2-3 Terminal Block Configuration ........2-5 Wiring Main Circuit Terminals ........2-6 Wiring Control Circuit Terminals ........

  • Page 35: Connections To Peripheral Devices

    Connections to Peripheral Devices Examples of connections between the Inverter and typical peripheral devices are shown in Fig 2.1. Power supply Molded-case circuit breaker or ground fault interrupter Magnetic con- tactor (MC) AC reactor for power factor improvement Braking resistor...

  • Page 36: Connection Diagram

    Connection Diagram Connection Diagram The connection diagram of the Inverter is shown in Fig 2.2. When using the Digital Operator, the motor can be operated by wiring only the main circuits. Thermal relay Thermal switch contact trip contact Braking Unit...
  • Page 37 10.DC reactors to improve the input power factor built into 200 V Class Inverters for 18.5 to 110 kW and 400 V Class Inverters for 18.5 to 300 kW. A DC reactor is thus an option only for Inverters for 15 kW or less.

  • Page 38: Terminal Block Configuration

    Terminal Block Configuration Terminal Block Configuration The terminal arrangement for 200 V Class Inverters are shown in Fig 2.3 and Fig 2.4. Control circuit terminals Main circuit terminals Charge indicator CAUTION CAUTION NPJT31278-1-0 NPJT31278-1-0 Ground terminal Fig 2.3 Terminal Arrangement (200 V Class Inverter for 0.4 kW Shown Above)

  • Page 39: Wiring Main Circuit Terminals

    Wiring Main Circuit Terminals Applicable Wire Sizes and Closed-loop Connectors Select the appropriate wires and crimp terminals from Table 2.1 to Table 2.3. Refer to instruction manual TOE-C726-2 for wire sizes for Braking Resistor Units and Braking Units. Table 2.1 200 V Class Wire Sizes...
  • Page 40 8.8 to 10.8 (10 to 2/0) 150 × 2P 31.4 to 39.2 (300) (300 × 2P) 0.5 to 5.5 1.25 r/ 1, 1.3 to 1.4 (20 to 10) (16) * The wire thickness is set for copper wires at 75°C...
  • Page 41 Table 2.2 400 V Class Wire Sizes Recom- Possible Inverter Tightening Termi- mended Wire Sizes Model Terminal Symbol Torque Wire Type Wire Size Screws CIMR- (N•m) (AWG) (AWG) R/L1, S/L2, T/L3, 2, B1, B2, 2 to 5.5 U/T1, V/T2, W/T3 G7C40P4 1.2 to 1.5...
  • Page 42 31.4 to 39.2 (1/0 × 2P) (1/0 to 300) 0.5 to 5.5 1.25 r/ 1, 200/ 200, 400/ 1.3 to 1.4 (20 to 10) (16) G7C4185 G7C4220 Under development G7C4300 * The wire thickness is set for copper wires at 75°C.
  • Page 43 M12 x 2 325 to 12 325 to 16 Determine the wire size for the main circuit so that line voltage drop is within 2% of the rated voltage. Line voltage drop is calculated as follows: Line voltage drop (V) =...

  • Page 44: Main Circuit Terminal Functions

    Wiring Main Circuit Terminals Main Circuit Terminal Functions Main circuit terminal functions are summarized according to terminal symbols in Table 2.4. Wire the terminals correctly for the desired purposes. Table 2.4 Main Circuit Terminal Functions (200 V Class and 400 V Class)

  • Page 45: Main Circuit Configurations

    Main Circuit Configurations The main circuit configurations of the Inverter are shown in Fig 2.5. Table 2.5 Inverter Main Circuit Configurations 200 V Class 400 V Class CIMRG7C40P4 to 4015 CIMR-G7C20P4 to 2015 B1 B2 B1 B2 U/T1 U/T1 R/L1...

  • Page 46: Standard Connection Diagrams

    Wiring Main Circuit Terminals Standard Connection Diagrams Standard Inverter connection diagrams are shown in Fig 2.5. These are the same for both 200 V Class and 400 V Class Inverters. The connections depend on the Inverter capacity. CIMR-G7C20P4 to 2015 and 40P4 to...

  • Page 47: Wiring The Main Circuits

    • 150% of the rated output current). If the same MCCB is to be used for more than one Inverter, or other devices, set up a sequence so that the • power supply will be turned OFF by a fault output, as shown in Fig 2.6.
  • Page 48 To prevent this, install an optional AC Reactor on the input side of the Inverter or a DC reactor to the DC reac- tor connection terminals.
  • Page 49 Never connect an electromagnetic switch (MC) between the Inverter and motor and turn it ON or OFF during operation. If the MC is turned ON while the Inverter is operating, a large inrush current will be created and the overcurrent protection in the Inverter will operate.
  • Page 50 Wiring Main Circuit Terminals When using an MC to switch to a commercial power supply, stop the Inverter and motor before operating the MC. Use the speed search function if the MC is operated during operation. If measures for momentary power interrupts are required, use a delayed release MC.

  • Page 51: Ground Wiring

    Ground Wiring Observe the following precautions when wiring the ground line. Always use the ground terminal of the 200 V Inverter with a ground resistance of less than 100 Ω and that • of the 400 V Inverter with a ground resistance of less than 10 Ω.
  • Page 52 Wiring Main Circuit Terminals Connecting the Braking Resistor (ERF) A Braking Resistor that mounts to the Inverter can be used with 200 V and 400 V Class Inverters with outputs from 0.4 to 3.7 kW. Connect the braking resistor as shown in Fig 2.13.

  • Page 53: Wiring Control Circuit Terminals

    For remote operation using analog signals, keep the control line length between the Digital Operator or opera- tion signals and the Inverter to 50 m or less, and separate the lines from high-power lines (main circuits or relay sequence circuits) to reduce induction from peripheral devices.

  • Page 54: Wiring Method

    Wiring Control Circuit Terminals Straight Solderless Terminals for Signal Lines Models and sizes of straight solderless terminal are shown in the following table. Table 2.10 Straight Solderless Terminal Sizes Model Manufacturer Wire Size mm (AWG) 0.25 (24) AI 0.25 - 8YE 12.5...

  • Page 55: Control Circuit Terminal Functions

    Control Circuit Terminal Functions The functions of the control circuit terminals are shown in Table 2.11. Use the appropriate terminals for the correct purposes. Table 2.11 Control Circuit Terminals Signal Name Function Signal Level Type Forward run/stop command Forward run when ON; stopped when OFF.
  • Page 56 Communications shield wire * 1. For a 3-wire sequence, the default settings are a 3-wire sequence for S5, multi-step speed setting 1 for S6 and multi-step speed setting 2 for S7. * 2. When driving a reactive load, such as a relay coil, always insert a flywheel diode as shown in Fig 2.17.
  • Page 57 The input terminal logic can be switched between sinking mode (0-V common) and sourcing mode (+24-V common) by using the terminals SN, SC, and SP. An external 24-V power supply is also supported, providing more freedom in signal input methods.
  • Page 58 Wiring Control Circuit Terminals Table 2.13 Sinking/Sourcing Mode and Input Signals Internal Power Supply External Power Supply Sink- Mode IP24V(+24V) IP24V(+24V) External +24V Sourc- Mode External +24V IP24V(+24V) IP24V(+24V)

  • Page 59: Control Circuit Terminal Connections

    Control Circuit Terminal Connections Connections to Inverter control circuit terminals are shown in Fig 2.19. Inverter CIMR-G7C2018 Forward Run/Stop Reverse Run/Stop Thermal switch contact for Braking Unit External fault Fault reset Multi-step speed reference 1 (Main speed switching) Multi-step speed...

  • Page 60: Control Circuit Wiring Precautions

    W/T3, 2, and 3) and other high-power lines. Separate wiring for control circuit terminals MA, MB, MC, M1, and M2 (contact outputs) from wiring to • other control circuit terminals. Use twisted-pair or shielded twisted-pair cables for control circuits to prevent operating faults. Process •...

  • Page 61: Wiring Check

    Wiring Check Checks Check all wiring after wiring has been completed. Do not perform a buzzer check on control circuits. Perform the following checks on the wiring. Is all wiring correct? • Have any wire clippings, screws, or other foreign material been left? •...

  • Page 62: Installing And Wiring Option Cards

    Option Card Models and Specifications Up to three Option Cards can be mounted in the Inverter. You can mount up one Card into each of the three places on the controller card (A, C, and D) shown in Fig 2.21.

  • Page 63: Pg Speed Control Card Terminals And Specifications

    Preventing C and D Option Card Connectors from Rising After installing an Option Card into slot C or D, insert an Option Clip to prevent the side with the connector from rising. The Option Clip can be easily removed by holding onto the protruding portion of the Clip and pulling it out.
  • Page 64 Maximum response frequency: 300 kHz Pulse input - terminal Common terminal Pulse monitor output + terminal Line driver output (RS-422 level output) Pulse monitor output - terminal Shield connection terminal * 5 VDC and 12 VDC cannot be used at the same time.

  • Page 65: Wiring

    Z-phase - output terminal Control circuit common Control circuit GND Shield connection terminal * 5 VDC and 12 VDC cannot be used at the same time. Wiring Wiring examples are provided in the following illustrations for the Control Cards. Wiring the PG-A2 Wiring examples are provided in the following illustrations for the PG-A2.
  • Page 66 • Shielded twisted-pair wires must be used for signal lines. • Do not use the pulse generator's power supply for anything other than the pulse generator (encoder). Using it for another purpose can cause malfunctions due to noise. • The length of the pulse generator's wiring must not be more than 100 meters.
  • Page 67 The length of the pulse generator's wiring must not be more than 100 meters. • The direction of rotation of the PG can be set in user constant F1-05. The factory preset if for forward rotation, A-phase advancement. Fig 2.25 PG-B2 Wiring...
  • Page 68 The length of the pulse generator's wiring must not be more than 100 meters. • The direction of rotation of the PG can be set in user constant F1-05 (PG Rotation). The factory preset if for motor forward rotation, A-phase advancement.

  • Page 69: Wiring Terminal Blocks

    Connect the shield when connecting to a PG. The shield must be connected to prevent operational errors • caused by noise. Also, do not use any lines that are more than 100 m long. Refer to Fig 2.20 for details on connecting the shield.

  • Page 70: Selecting The Number Of Pg (Encoder) Pulses

    2. The PG power supply is 12 V. 3. A separate power supply is required if the PG power supply capacity is greater than 200 mA. (If momentary power loss must be handled, use a backup capacitor or other method.)
  • Page 71 Motor speed at maximum frequency output (min × PG rating (p/rev) (Hz) = A separate power supply is required if the PG power supply capacity is greater than 200 mA. (If momentary power loss must be handled, use a backup capacitor or other method.) PG-X2...

  • Page 72: Digital Operator And Modes

    Digital Operator and Modes This chapter describes Digital Operator displays and functions, and provides an overview of operating modes and switching between modes. Digital Operator............3-2 Modes ................3-4...

  • Page 73: Digital Operator

    Execute operations such as setting user constants, monitoring, jogging, and autotuning. Fig 3.1 Digital Operator Component Names and Functions Digital Operator Keys The names and functions of the Digital Operator Keys are described in Table 3.1. Table 3.1 Key Functions Name Function...
  • Page 74 Note Except in diagrams, Keys are referred to using the Key names listed in the above table. There are indicators on the upper left of the RUN and STOP Keys on the Digital Operator. These indicators will light and flash to indicate operating status.

  • Page 75: Modes

    This mode can also be used to measure only the motor line-to-line resistance. * Always perform autotuning with the motor before operating using vector control. Autotuning mode will not be displayed during operation or when an error has occurred. The default setting of the Inverter is for open-loop vector control 1 (A1-02 = 2).

  • Page 76: Switching Modes

    When running the Inverter after using Digital Operator, press the MENU Key to select the drive mode (dis- played on the LCD screen) and then press the DATA/ENTER Key from the drive mode display to bring up the monitor display. Run commands can't be received from any other display. (Monitor display in the drive mode will appear when the power is turned ON.)

  • Page 77: Drive Mode

    Drive Mode Drive mode is the mode in which the Inverter can be operated. The following monitor displays are possible in drive mode: The frequency reference, output frequency, output current, and output voltage, as well as fault information and the fault history.

  • Page 78: Quick Programming Mode

    Modes Note When changing the display with the Increment and Decrement Keys, the next display after the one for the last parameter number will be the one for the first parameter number and vise versa. For example, the next display after the one for U1-01 will be U1-40. This is indicated in the figures by the letters A and B and the numbers 1 to 6.
  • Page 79 Auto-Tuning DATA -QUICK- -QUICK- ENTER MOL Fault Select MOL Fault Select L1-01=1 L1-01= Std Fan Cooled Std Fan Cooled DATA -QUICK- -QUICK- ENTER StallP Decel Sel StallP Decel Sel L3-04=1 L3-04= Enabled Enabled Fig 3.5 Operations in Quick Programming Mode...

  • Page 80: Advanced Programming Mode

    Constants can be changed from the setting displays. Use the Increment, Decrement, and Shift/RESET Keys to change the frequency. The user constant will be written and the monitor display will be returned to when the DATA/ENTER Key is pressed after changing the setting.
  • Page 81 Setting User Constants Here, the procedure is shown to change C1-01 (Acceleration Time 1) from 10 s to 20 s. Table 3.3 Setting User Constants in Advanced Programming Mode Step Digital Operator Display Description -DRIVE- Frequency Ref U1- 01=60.00Hz Power supply turned ON.
  • Page 82 Modes External Fault Setting Procedure Examples of the Digital Operator displays that appear when setting an eternal error for a multi-function con- tact input in Advanced Programming Mode are shown in the following diagram. Mode Selection Display Monitor Display Setting Display...

  • Page 83: Verify Mode

    Verify Mode Verify mode is used to display any constants that have been changed from their default settings in a program- ming mode or by autotuning. “None” will be displayed if no settings have been changed. Of the environment mode settings, only A1-02 will be displayed if it has been changed. Other environment modes settings will not be displayed even if they have been changed from their default settings.

  • Page 84: Autotuning Mode

    Set the motor output power (in kW), rated voltage, rated current, rated frequency, rated speed, and number of poles specified on the nameplate on the motor and then press the RUN Key. The motor is automatically run and the motor constants measured based on these settings and autotuning will be set.
  • Page 85 MENU STOP key autotuning. * TUn10 will be displayed during rotational autotuning and TUn11 will be displayed during stationary autotuning. The DRIVE indicator will light when autotuning starts. Fig 3.9 Operation in Autotuning Mode The setting displays in for autotuning depend on the control mode (V/f, V/f with PG, open-loop vector 1, open- loop vector 2, or flux vector).

  • Page 86: Trial Operation

    Trial Operation This chapter describes the procedures for trial operation of the Inverter and provides an example of trial operation. Trial Operation Procedure..........4-2 Trial Operation Procedures..........4-3 Adjustment Suggestions ..........4-16...

  • Page 87: Trial Operation Procedure

    Optimum adjustments and constant settings *4 If the motor cable changes to 50 m or longer for the actual installation, perform stationary autotuning for the line-to-line resistance only on-site. *5 The default control mode is open-loop vector control 2 Check/record constants.

  • Page 88: Trial Operation Procedures

    55 kW or higher. Insert the jumper into the voltage connector nearest to the actual power supply voltage. The jumper is factory-set to 440 V when shipped. If the power supply voltage is not 440 V, use the following procedure to change the setting.

  • Page 89: Checking The Display Status

    U1-02=60.00Hz U1-03=10.05A When an fault has occurred, the details of the fault will be displayed instead of the above display. In that case, refer to Chapter 7 Troubleshooting. The following display is an example of a display for faulty operation.

  • Page 90: Basic Settings

    Chapter 5 User Constants and Chapter 6 Constant Settings by Function for details on the user constants. Constants that must be set are listed in Table 4.1 and those that are set according to the application are listed in Table 4.2.
  • Page 91 5-23 quency selection age, and control The carrier frequency is set low if the motor cable mode. is 50 m or longer or to reduce radio noise or leak- age current. Carrier fre- Depends quency selection C6-11 1 to 4...

  • Page 92: Settings For The Control Methods

    Note If the motor cable changes to 50 m or longer for the actual installation, perform stationary autotuning for the line-to-line resistance only on-site. * 1. Use rotational autotuning to increase autotuning accuracy whenever it is okay for the motor to be operated. Always perform rotational autotuning when using open-loop vector control 2.
  • Page 93 1:200 speed control range without a ing.) Note With vector control, the motor and Inverter must be connected 1:1. The motor capacity for which stable control is possible is 50% to 100% of the capac- ity of the Inverter.

  • Page 94: Autotuning

    Stationary autotuning is used for open-vector control or flux vector control. Set T1-01 to 1, input the data from the nameplate, and then press the RUN Key on the Digital Operator. The Inverter will supply power to the sta- tionary motor for approximately 1 minute and some of the motor constants will be set automatically. The...
  • Page 95 • use a motor with a rated voltage that is 20 V less than the input power supply voltage of the Inverter for 200V-class Inverters and 40 V less for 400V-class Inverters. If the rated voltage of the motor is the same as the input power supply voltage, the voltage output from the Inverter will be unstable at high speeds and sufficient performance will not be possible.
  • Page 96 Lower the base voltage based on Fig 4.4 to prevent saturation of the Inverter’s output voltage when the rated voltage of the motor is higher than the voltage of the power supply to the Inverter. Use the following proce- dure to perform autotuning.
  • Page 97 Constant Settings for Autotuning The following constants must be set before autotuning. Table 4.3 Constant Settings before Autotuning Name Data Displays during Autotuning Con- Open Open stant Setting Factory Flux Display -loop -loop Num- Range Setting Display with Vec- Vec-...
  • Page 98 * 1. Not normally displayed. Displayed only when a motor switch command is set for a multi-function digital input (one of H1-01 to H1-05 set to 16). * 2. The factory setting depends on the Inverter capacity. Values are given for a 200 V class, 0.4 kW Inverter.

  • Page 99: Application Settings

    To increase the speed of a 60 Hz motor by 10%, set E1-04 to 66.0 Hz. • To use a 0 to 10-V analog signal for a 60 Hz motor for variable-speed operation between 0 and 54 Hz (0% •...

  • Page 100: Check And Recording User Constants

    Recording User Constants (o2-03) If o2-03 is set to 1 after completing trial operation, the settings of user constants will be saved in a separate memory area in the Inverter. Later, after Inverter settings have been changed, the user constants can be initial- ized to the settings saved in the separate memory area when o2-03 was set to 1 by setting A1-03 (Initialize) to 1110.

  • Page 101: Adjustment Suggestions

    Adjustment Suggestions If hunting, vibration, or other problems originating in the control system occur during trial operation, adjust the constants listed in the following table according to the control method. This table lists only the most commonly used user constants.
  • Page 102 Adjustment Suggestions Table 4.4 Adjusted User Constants (Continued) Recom- Control Name (Constant Factory Performance mended Adjustment Method Method Number) Setting Setting • Reducing motor • Increase the setting if magnetic noise motor magnetic noise is Depends Carrier frequency • Controlling hunting 0 to high.
  • Page 103 01 to C5-05) to between 0.5 and 1.5 times the default. (It is not normally necessary to adjust this setting.) ASR for V/f control with a PG will only control the output frequency; a high gain, such as is possible for open-loop vector control 2 or flux vector control, cannot be set.
  • Page 104 Set the maximum torque during vector control. If a setting is increased, Torque limits (L7-01 to L7-04) use a motor with higher capacity than the Inverter. If a setting is reduced, stalling can occur under heavy loads. Used to increase response for acceleration/deceleration or to reduce over-...

  • Page 106: User Constants

    User Constants This chapter describes all user constants that can be set in the Inverter. User Constant Descriptions .........5-2 Digital Operation Display Functions and Levels ..5-3 User Constant Tables ..........5-8...

  • Page 107: User Constant Descriptions

    User Constant Descriptions This section describes the contents of the user constant tables. Description of User Constant Tables User constant tables are structured as shown below. Here, b1-01 (Frequency Reference Selection) is used as an example. Name Control Methods Change...

  • Page 108: Digital Operation Display Functions And Levels

    Digital Operation Display Functions and Levels Digital Operation Display Functions and Levels The following figure shows the Digital Operator display hierarchy for the Inverter. Function Display Page Status Monitor Constants Monitor 5-75 MENU Drive Mode Fault Trace 5-80 Fault Trace...

  • Page 109: User Constants Settable In Quick Programming Mode

    The minimum user constants required for Inverter operation can be monitored and set in quick programming mode. The user constants displayed in quick programming mode are listed in the following table. These, and all other user constants, are also displayed in advanced programming mode.
  • Page 110 6.00 Hz 292H RJOG command is ON for a multi- function input. Reference Input volt- age setting Set the Inverter input voltage in 1 volt. 155 to 200 V E1-01 This set value will be the basis for the 300H Input Volt- protection functions.
  • Page 111 2 to 48 311H tuning. Number of Poles Motor rated Set the output of the motor in units of 0.00 to 0.40 output E2-11 0.01kW. This constant is automatically 318H 650.000 set during autotuning.
  • Page 112 * 6. The factory setting depends on the Inverter capacity. (The value for a 200 V Class Inverter for 0.4 kW is given.) * 7. The setting range is from 10% to 200% of the Inverter rated output current. (The value for a 200 V Class Inverter for 0.4 kW is given.) * 8.

  • Page 113: User Constant Tables

    User Constant Tables A: Setup Settings The following settings are made with the environment constants (A constants): Language displayed on the Digital Operator, access level, control method, initialization of constants. Initialize Mode: A1 User constants for the environment modes are shown in the following table.
  • Page 114 RESET Key word and press the Menu Key and the password will be dis- played. User-set Constants: A2 The constants set by the user are listed in the following table. Name Control Methods Change MEMO Open Open...

  • Page 115: Application Constants: B

    Application Constants: b The following settings are made with the application constants (B constants): Operation method selection, DC injection braking, speed searching, timer functions, dwell functions, and energy saving functions. Operation Mode Selections: b1 User constants for operation mode selection are shown in the following table.
  • Page 116 0 or 1 187H ming modes when Digital Operator is set to select run command RUN CMD (when b1-02 = 0). at PRG * The setting range is 0 or 1 for flux vector control and open-loop vector control 2.
  • Page 117 DC Injection Braking: b2 User constants for injection braking are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Description Loop Flux Loop stant Page Range Setting Opera- Regis- Display with Vec- Vec-...
  • Page 118 20.0 speed calcu- from a momentary power loss, lation) the search operation is delayed Search by the time set here. Delay * The factory setting will change when the control method is changed. (Open-loop vector 1 factory settings are given.)
  • Page 119 Timer Function: b4 User constants for timer functions are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis- with Vec- Vec- Vec-...
  • Page 120 PID output 0.0 to gain b5-10 Sets output gain. 1AEH 6-95 25.0 Output Gain PID reverse 0: 0 limit when PID output is output selec- negative. tion 1: Reverses when PID output b5-11 0 or 1 1AFH 6-95 is negative.
  • Page 121 0.0 to reference b5-17 0.0 s 1B5H 6-96 PID reference in seconds. 25.5 PID SFS Time Dwell Functions: b6 User constants for dwell functions are shown in the following table. Name Control Methods Con- Change MEMO Open Open Fac- stant Setting...
  • Page 122 User Constant Tables DROOP Control: b7 User constants for droop functions are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Description Loop Flux Loop stant Page Range Setting Opera- Regis- Display with...
  • Page 123 * 1. The factory setting is 1.0 when using V/f control with PG. * 2. The factory setting is 2.00 s when Inverter capacity is 55 kW min. The factory setting will change when the control method is changed. (Open-loop vec- tor 1 factory settings are given.)
  • Page 124 User Constant Tables Zero Servo: b9 User constants for dwell functions are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis- with...

  • Page 125: Autotuning Constants: C

    Autotuning Constants: C The following settings are made with the autotuning constants (C constants): Acceleration/deceleration times, s-curve characteristics, slip compensation, torque compensation, speed control, and carrier frequency func- tions. Acceleration/Deceleration: C1 User constants for acceleration and deceleration times are shown in the following table.
  • Page 126 “accel/decel time 2” take pri- ority. * The setting range for acceleration/deceleration times will depends on the setting for C1-10. When C1-10 is set to 0, the setting range for acceleration/decel- eration times becomes 0.00 to 600.00 seconds. S-curve Acceleration/Deceleration: C2 User constants for S-curve characteristics are shown in the following table.
  • Page 127 C3-05 0 or 1 213H 6-32 selection cally when the output voltage become satu- Output V rated.) limit * The factory setting will change when the control method is changed. (Open-loop vector 1 factory settings are given.)
  • Page 128 The filter is 0 to constant C4-05 10 ms 219H disabled if the time is set to 0 TorqCmp to 4 ms. DelayT * The factory setting will change when the control method is changed. (Open-loop vector 1 factory settings are given.)
  • Page 129 Limit * 1. When the control method is changed, the Inverter reverts to factory settings. (The flux vector control factory settings will be displayed.) * 2. The setting range is 1.00 to 3.00 for flux vector control and open-loop vector control 2.
  • Page 130 * 3. The setting range depends on the capacity of the Inverter. * 4. This constant can be monitored or set only when 1 is set for C6-01 and F is set for C6-02. * 5. Displayed in Quick Programming Mode when motor 2 is set for a multi-function input.

  • Page 131: Reference Constants: D

    Reference Constants: d The following settings are made with the reference constants (d constants): Frequency references. Preset Reference: d1 User constants for frequency references are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory...
  • Page 132 RJOG command is Reference Note The unit is set in o1-03 (frequency units of reference setting and monitor). The default for o1-03 is 0 (increments of 0.01 Hz). * The setting range is 0 to 66.0 for open-loop vector control 2.
  • Page 133 6-27 The jump frequency will be 20.0 Jump Band- the jump frequency ± d3-04. width Reference Frequency Hold: d4 User constants for the reference frequency hold function are shown in the following table. Name Control Methods Change MEMO Open Open...
  • Page 134 User Constant Tables Torque Control: d5 User constants for the torque control are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis-...
  • Page 135 * The factory setting will change when the control method is changed. Field Control: d6 User constants for the field weakening command are shown in the following table. Name Control Methods Change...
  • Page 136 Secondary circuit time 1.00 2A4H 10.00 A PHI R constant x d6-05 Filter AφR will not function when d6-05 is 0. If d6-05 is not 0, the lower limit of the value will be internally adjusted to 200 ms in the Inverter.

  • Page 137: Motor Constant Constants: E

    Motor Constant Constants: E The following settings are made with the motor constant constants (E constants): V/f characteristics and motor constants. V/f Pattern: E1 User constants for V/f characteristics are shown in the following table. Name Control Methods Con- Change...
  • Page 138 Voltage * 1. These are values for a 200 V Class Inverter. Values for a 400 V Class Inverter are double. * 2. The factory setting will change when the control method is changed. (Open-loop vector 1 factory settings are given.) * 3.
  • Page 139 * 1. The factory setting depends upon the Inverter capacity. The value for a 200 V class Inverter of 0.4 kW is given. * 2. The setting range is 10% to 200% of the Inverter's rated output current. The value for a 200 V class Inverter of 0.4 kW is given.
  • Page 140 User Constant Tables Motor 2 V/f Pattern: E3 User constants for motor 2 V/f characteristics are shown in the following table. Name Control Methods Con- Change MEMO- Open Open stant Setting Factory during Description Loop Flux Loop Page Num- Range...
  • Page 141 Min Volt- * 1. These are values for a 200 V class Inverter. Values for a 400 V class Inverter are double. * 2. The factory setting will change when the control method is changed. (V/f control factory settings are given.)
  • Page 142 * 1. The factory setting depends upon the Inverter capacity. The value for a 200 V class Inverter of 0.4 kW is given. * 2. The setting range is 10% to 200% of the Inverter's rated output current. The values for a 200 V class Inverter of 0.4 kW is given.

  • Page 143: Option Constants: F

    Option Constants: F The following settings are made with the option constants (F constants): Settings for Option Cards PG Option Setup: F1 User constants for the PG Speed Control Card are shown in the following table. Name Control Methods Change...
  • Page 144 F1-11 0.5 s 38AH 10.0 time speed and the reference com- mand speed. PG Deviate Time * The factory setting will change when the control method is changed. (Flux vector control factory settings are given.)
  • Page 145 2.0 s 38DH 10.0 time continues beyond the set PGO Detect time. Time Analog Reference Card: F2 User constants for the Analog Reference Card are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting...
  • Page 146 User Constant Tables Digital Reference Card: F3 User constants for the Digital Reference Card are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting...
  • Page 147 Analog Monitor Cards: F4 User constants for the Analog Monitor Card are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis- with...
  • Page 148 User Constant Tables Digital Output Card (DO-02 and DO-08): F5 User constants for the Digital Output Card are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page...
  • Page 149 Communications Option Cards: F6 User constants for a Communications Option Card are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis- with...

  • Page 150: Terminal Function Constants: H

    User Constant Tables Terminal Function Constants: H The following settings are made with the terminal function constants (H constants): Settings for external ter- minal functions. Multi-function Contact Inputs: H1 User constants for multi-function contact inputs are shown in the following tables.
  • Page 151 6-66 Option/Inverter selection (ON: Option Card) 6-73 Multi-step speed reference 1 When H3-05 is set to 2, this function is combined with the master/auxiliary speed switch. Multi-step speed reference 2 Multi-step speed reference 3 Jog frequency command (higher priority than multi-step speed reference)
  • Page 152 Value Emergency stop (Normally closed condition: Deceleration to stop in deceleration 6-14 time set in C1-09 when OFF) Timer function input (Functions are set in b4-01 and b4-02 and the timer function 6-93 outputs are set in H1- and H2-...
  • Page 153 Multi-function Contact Outputs: H2 User constants for multi-function outputs are shown in the following tables. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis- with Vec- Vec-...
  • Page 154 During run (ON: run command is ON or voltage is being output) Zero-speed Frequency agree 1 (L4-02 used.) Desired frequency agree 1 (ON: Output frequency = ±L4-01, L4-02 used and dur- ing frequency agree) Frequency (FOUT) detection 1 (ON: +L4-01 ≥ output frequency ≥ -L4-01, L4-02 used) Frequency (FOUT) detection 2 (ON: Output frequency ≥...
  • Page 155 During speed limit (ON: During speed limit) Speed control circuit operating for torque control (except when stopped). The external torque reference will be limited if torque control is selected (internal torque reference < external torque reference). Output when the motor is rotating at the speed limit.
  • Page 156 0 H3-08 0 to 2 417H 6-24 (i.e., allow reverse operation). 2: 4 to 20 mA (9-bit input). Term A2 Sig- Switch current and voltage input using the switch on the control panel. Multi-func- tion analog...
  • Page 157 Inverter rated output current 6-14 Overtorque/undertorque detection Motor rated torque for vector control 6-48 level Inverter rated output current for V/f control Stall prevention level during run Inverter rated output current 6-44 Frequency reference lower limit Maximum output frequency 6-31...
  • Page 158 User Constant Tables Multi-function Analog Outputs: H4 User constants for multi-function analog outputs are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera-...
  • Page 159 0 or 1 424H tion 0: 0 to +10 V output AO Level 1: 0 to ±10 V output Select2 MEMOBUS Communications: H5 User constants for MEMOBUS communications are shown in the following table. Name Control Methods Change MEMO Open Open Con-...
  • Page 160 Select to enable or disable trol ON/ RTS control. 0: Disabled (RTS is always H5-07 0 or 1 42BH 6-83 RTS Con- 1: Enabled (RTS turns ON trol Sel only when sending) * Set H5-01 to 0 to disable Inverter responses to MEMOBUS communications.
  • Page 161 Pulse Train I/O: H6 User constants for pulse I/O are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis- with Vec- Vec-...

  • Page 162: Protection Function Constants: L

    User Constant Tables Protection Function Constants: L The following settings are made with the protection function constants (L constants): Motor selection func- tion, power loss ridethrough function, stall prevention function, frequency detection, torque limits, and hard- ware protection. Motor Overload: L1 User constants for motor overloads are shown in the following table.
  • Page 163 0.20 s 484H 6-52 motor temperature (thermistor) 10.00 stant inputs in seconds. MOL Filter Time Power Loss Ridethrough: L2 User constants for power loss ridethroughs are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory...
  • Page 164 × 2 * 1. The factory setting depends upon the Inverter capacity. The value for a 200 V Class Inverter of 0.4 kW is given. * 2. These are values for a 200 V class Inverter. Value for a 400 V class Inverter is double.
  • Page 165 Stall Prevention: L3 User constants for the stall prevention function are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis- with Vec-...
  • Page 166 Level stalls. * The setting range is 0 to 2 for flux vector control and open-loop vector control 2. Reference Detection: L4 User constants for the reference detection function are shown in the following table.
  • Page 167 6-62 reference was lost) Frequency reference is lost: Ref Loss Frequency reference dropped over 90% in 400 ms. Fault Restart: L5 User constants for restarting faults are shown in the following table. Name Control Methods Change MEMO Open Open Con-...
  • Page 168 User Constant Tables Torque Detection: L6 User constants for the torque detection function are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera-...
  • Page 169 2 NC is selected. 0.0 to time 2 L6-06 0.1 s 4A6H 6-45 10.0 Torq Det 2 Time Torque Limits: L7 User constants for torque limits are shown in the following table. Control Methods Con- Change MEMO Open Open Fac- stant Setting during...
  • Page 170 User Constant Tables Hardware Protection: L8 User constants for hardware protection functions are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis-...
  • Page 171 Chara@L- Soft CLA 0: Disable selection L8-18 0 or 1 4BFH 1: Enable Soft CLA Sel * The factory setting depends upon the Inverter capacity. The value for a 200 V Class Inverter of 0.4 kW is given.

  • Page 172: N: Special Adjustments

    User Constant Tables N: Special Adjustments The following settings are made with the special adjustments constants (N constants): Hunting prevention and speed feedback detection control. Hunting Prevention Function: N1 User constants for hunting prevention are shown in the following table.
  • Page 173 Speed Feedback Protection Control Functions: N2 User constants for speed feedback protection control functions are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting...
  • Page 174 40 s 58BH 1200 ing deceleration for high-slip HSB OL braking. Time Speed Estimation: N4 User constants for speed estimation are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting...

  • Page 175: Digital Operator Constants: O

    Feedfoward 03 is increased. Gain * 1. The factory setting will change when the control method is changed. (Flux vector control factory settings are given.) * 2. The factory setting depends on the inverter capacity. Digital Operator Constants: o The following settings are made with the Digital Operator constants (o constants): Multi-function selections and the copy function.
  • Page 176 2: Output frequency Power-On 3: Output current Monitor 4: The monitor item set for o1-01 Frequency Sets the units that will be set units of refer- and displayed for the fre- ence setting quency reference and fre- and monitor quency monitor.
  • Page 177 Multi-function Selections: o2 User constants for Digital Operator key functions are shown in the following table. Name Control Methods Change MEMO Open Open Con- Setting Factory during Loop Flux Loop Description stant Page Display Range Setting Opera- Regis- with Vec-...
  • Page 178 U3 constants.) Init * The factory setting depends upon the Inverter capacity. The value for a 200 V class Inverter of 0.4 kW is given. Copy Function: o3 User constants for the copy function are shown in the following table.

  • Page 179: T: Motor Autotuning

    * 3. The factory setting depends on the Inverter capacity. (The value for a 200 V Class Inverter for 0.4 kW is given.) * 4. The setting range is from 10% to 200% of the Inverter rated output current. (The value for a 200 V Class Inverter for 0.4 kW is given.)

  • Page 180: U: Monitor Constants

    User Constant Tables U: Monitor Constants The following settings are made with the monitor constants (U constants): Setting constants for monitoring in drive mode. Status Monitor Constants: U1 The constants used for monitoring status are listed in the following table.
  • Page 181 1: Minor fault 1: Major fault Cumulative Monitors the total operating operation time of the Inverter. time The initial value and the oper- U1-13 (Cannot be output.) ating time/power ON time Elapsed selection can be set in o2-07 Time and o2-08.
  • Page 182 Monitors the input voltage of A1 input the voltage frequency refer- 10 V: 100% (10 V) voltage U1-15 ence. An input of 10 V corre- (0 to ± 10 V possible) Term A1 sponds to 100%. Level Terminal Monitors the input voltage of...
  • Page 183 (Manufacturer’s CPU software No. (CPU) U1-28 (Cannot be output.) No.) CPU ID ACR out- put of q axis Monitors the current control 10 V: 100% U1-32 output value for the motor sec- (0 to ± 10 V possible) ACR(q) ondary current.
  • Page 184 (Cannot be output.) time can be set in 02-10. Elapsed Time Estimated Monitors the calculated value motor flux of the motor flux. 100% is dis- U1-42 10 V: Rated motor flux played for the rated motor Mot Flux flux. Motor flux...
  • Page 185 Fault Trace: U2 User constants for error tracing are shown in the following table. Name Control Methods Output Signal MEMO Open Open Con- Level During Min. Loop Flux Loop Description stant Multi-Function Display Unit Regis- with Vec- Vec- Vec- Number...
  • Page 186 U1-12. Cumulative operation The operating time when the pre- U2-14 time at fault vious fault occurred. Elapsed time Note The following errors are not included in the error trace: CPF00, 01, 02, 03, UV1, and UV2.
  • Page 187 3rd previous fault occurred. Elapsed Time Accumulated time of The total operating time fourth/oldest U3-08 when the 4th previous fault fault occurred. Elapsed Time Note The following errors are not recorded in the error log: CPF00, 01, 02, 03, UV1, and UV2.

  • Page 188: Factory Settings That Change With The Control Method (A1-02)

    User Constant Tables Factory Settings that Change with the Control Method (A1-02) The factory settings of the following user constants will change if the control method (A1-02) is changed. Name Factory Setting Con- Open- Open Setting Range Unit stant V/f with...
  • Page 189 * 1. The settings will be 0.05 (Flux vector)/2.00 (Open-loop vector) for inverters of 55kW or larger. * 2. The settings shown are for 200 V class Inverters. The values will double for 400 V class Inverters. * 3. Settings vary as shown in the following tables depending on the Inverter capacity and E1-03.
  • Page 190 User Constant Tables 200 V Class Inverters of 55 to 110 kW and 400 V Class Inverters of 55 to 300 kW Con- Open Open stant Factory Setting Loop Loop Flux Unit Num- Vector Vector Vector Con- Con- Con- trol...

  • Page 191: Factory Settings That Change With The Inverter Capacity (O2-04)

    Factory Settings that Change with the Inverter Capacity (o2-04) The factory settings of the following user constants will change if the Inverter capacity (o2-04) is changed. 200 V Class Inverters Con- stant Name Unit Factory Setting Number Inverter Capacity 0.75...
  • Page 192 Inverters with outputs of 0.4 to 7.5 kW. * 1. The initial settings for C6-02 are as follows: 0: Low noise PWM, 1: 2.0 kHz, 2: 5.0 kHz, 3: 8.0 kHz, 4: 10 kHz, 5: 12.5 kHz, and 6: 15 kHz. If the carrier frequency is set higher than the factory setting for Inverters with outputs of 5.5 kW or more, the Inverter rated current will need to be reduced.
  • Page 193 Energy-saving filter time b8-03 0.50 (Open-loop vector control) constant b8-04 Energy-saving coefficient 576.40 447.40 338.80 313.60 245.80 236.44 189.50 145.38 140.88 126.26 Carrier frequency selec- C6-02 tion Carrier frequency selec- tion for open-loop vector C6-11 control 2 Carrier frequency selec-...
  • Page 194 0.155 0.122 (E4-05) tance E2-06 Motor leak inductance 20.1 23.5 20.7 18.8 19.9 (E4-06) Motor iron loss for torque E2-10 1125 compensation Momentary power loss ride- L2-02 thru time L2-03 Min. baseblock (BB) time L2-04 Voltage recovery time °C L8-02...
  • Page 195 Note Inverters with a capacity of 185 kW or more are under development. * 1. The initial settings for C6-02 are as follows: 1: 2.0 kHz, 2: 5.0 kHz, 3: 8.0 kHz, 4: 10 kHz, 5: 12.5 kHz, 6: 15 kHz, and F: User-set (Initial setting for 400-V Inverters with a capacity of 90-kW or 110-kW: 3 kHz.).

  • Page 196: Constant Settings By Function

    Function Frequency Reference ..........6-2 Run Command.............6-7 Stopping Methods ............6-9 Acceleration and Deceleration Characteristics ..6-15 Adjusting Frequency References.......6-24 Speed Limit (Frequency Reference Limit Function) ..6-30 Improved Operating Efficiency........6-32 Machine Protection ............6-38 Continuing Operation..........6-55 Inverter Protection .............6-64 Input Terminal Functions..........6-66 Monitor Constants............6-76 Individual Functions ...........6-81...

  • Page 197: Frequency Reference

    PI Scaling Input the Reference Frequency from the Digital Operator When b1-01 is set to 0, you can input the reference frequency from the Digital Operator. Input the reference frequency from the Digital Operator's reference frequency setting display. For details on setting the reference frequency, refer to Chapter 3 Digital Operator and Modes.
  • Page 198 Turn ON pin 2 of DIP switch SW1 (toward I), the voltage/current switch, when inputting a current to terminal A2. Turn OFF pin 2 of DIP switch SW1 (toward V), the voltage/current switch, when inputting a voltage to ter- minal A2. Set H3-08 to the correct setting for the type of input signal being used.
  • Page 199 Setting Frequency Reference Using Pulse Train Signals When b1-01 is set to 4, the pulse train input to control circuit terminal RP is used as the frequency reference. Set H6-01 (Pulse Train Input Function Selection) to 0 (frequency reference), and then set the 100% reference pulse frequency to H6-02 (Pulse Train Input Scaling).

  • Page 200: Using Multi-Step Speed Operation

    Frequency Reference Using Multi-Step Speed Operation With Varispeed-G7 series Inverters, you can change the speed to a maximum of 17 steps, using 16 frequency references, and one jog frequency reference. The following example of a multi-function input terminal function shows a 9-step operation using multi-step references 1 to 3 and jog frequency selection functions.
  • Page 201 Setting Precautions When setting analog inputs to step 1 to step 3, observe the following precautions. When setting terminal A1's analog input to step 1, set b1-01 to 1, and when setting d1-01 (Frequency Ref- • erence 1) to step 1, set b1-01 to 0.

  • Page 202: Run Command

    The factory setting is set to a 2-wire sequence. When control circuit terminal S1 is set to ON, forward opera- tion will be performed, and when S1 is turned OFF, the Inverter will stop. In the same way, when control cir- cuit terminal S2 is set to ON, reverse operation will be performed, and when S2 is turned OFF, the Inverter will stop.
  • Page 203 Motor speed Stop Forward Reverse Stop Forward Fig 6.10 Three-wire Sequence Time Chart Use a sequence that turns ON terminal S1 for 50 ms or longer for the run command. This will make the run command self-holding in the Inverter. INFO...

  • Page 204: Stopping Methods

    DC braking stop • Coast to stop with timer • Set constant b1-03 to select the Inverter stopping method. A DC braking stop and coasting to a stop with a timer cannot be set for flux vector control. Related Constants Name...
  • Page 205 Deceleration to Stop If the stop command is input (i.e., the run command is turned OFF) when b1-03 is set to 0, the motor deceler- ates to a stop according to the deceleration time that has been set. (Factory setting: C1-02 (Deceleration Time If the output frequency when decelerating to a stop falls below b2-01, the DC injection brake will be applied using the DC current set in b2-02 only for the time set in b2-04.
  • Page 206 Coast to Stop If the stop command is input (i.e., the run command is turned OFF) when b1-03 is set to 1, the Inverter output voltage is interrupted. The motor coasts to a stop at the deceleration rate that counterbalances damage to the machine and inertia including the load.
  • Page 207 DC Braking Stop If the stop command is input (i.e., the run command is turned OFF) when b1-03 is set to 2, a wait is made for the time set in L2-03 (Minimum Baseblock (BB) Time) and then the DC injection brake current set in b2-02 is sent to the motor to apply a DC injection brake to stop the motor.

  • Page 208: Using The Dc Injection Brake

    Stopping Methods Using the DC Injection Brake Set constant b2-03 to apply the DC injection brake voltage to the motor while it is coasting to a stop, to stop the motor and then restart it. Set b2-03 to 0 to disable the DC injection brake at start.

  • Page 209: Using An Emergency Stop

    Fast Stop Time stopped method when a fault has been detected. * The acceleration and deceleration settings range varies depending on the setting in C1-10. When C1-10 is set to 0, the acceleration/deceleration settings range is 0.00 to 600.00 (seconds).

  • Page 210: Acceleration And Deceleration Characteristics

    Acceleration time indicates the time taken for the output frequency to climb from 0% to 100%. Deceleration time indicates the time taken for the output frequency to reduce to 0%. The factory setting of the acceleration time is C1-01, and the factory setting of the deceleration time is C1-02.
  • Page 211 0.00 s 2.50 SCrv Dec @ * The acceleration and deceleration settings range varies depending on the setting in C1-10. When C1-10 is set to 0, the acceleration/deceleration settings range is 0.00 to 600.00 (seconds). Setting Acceleration and Deceleration Time Units Set the acceleration/deceleration time units using C1-10.
  • Page 212 When the output frequency reaches the set value in C1-11, the Inverter switches the acceleration/deceleration time automatically as shown in the following diagram. Set C1-11 to a value other than 0.0 Hz. If C1-11 is set to 0.0 Hz, the function will be disabled. Output frequency...
  • Page 213 By performing acceleration and deceleration using an S-curve pattern, you can reduce shock when starting and stopping the machine. Using the Inverter, you can set an S-curve characteristic time for each of the following: Acceleration start time, deceleration start time, acceleration end time, and deceleration end time.

  • Page 214: Accelerating And Decelerating Heavy Loads (Dwell Function)

    The dwell function stores the output frequency when starting or stopping heavy loads. By temporarily storing the output frequency, you can prevent the motor from stalling. When using the dwell function, you must select a deceleration stop. Set b1-03 (Stopping Method Selection) to 0.

  • Page 215: Preventing The Motor From Stalling During Acceleration (Stall Prevention During Acceleration Function)

    If you set L3-01 to 1 (enabled) and the Inverter output current exceeds the -15% level of the set value in L3- 02, the acceleration rate will begin to slow down. When L3-02 is exceeded, acceleration will stop.
  • Page 216 Fig 6.21 Time Chart for Stall Prevention During Acceleration Setting Precautions If the motor capacity is small compared to the Inverter capacity, or if the motor is operated using the fac- • tory settings, resulting in the motor stalling, lower the set value of L3-02.

  • Page 217: Preventing Overvoltage During Deceleration (Stall Prevention During Deceleration Function)

    If L3-04 is set to 1 or 2, when the main circuit DC voltage approaches the stall prevention level during decel- eration, deceleration stops, and when deceleration falls below the level, is restarted. Using this operation, deceleration time is automatically lengthened.
  • Page 218 When using the braking option (braking resistor, Braking Resistor Units, and Braking Units), be sure to set • constant L3-04 to 0 or 3. To decelerate at a shorter time than the deceleration time set when L3-04 is set to 0 with the braking option • enabled, set L3-04 to 3.

  • Page 219: Adjusting Frequency References

    Adjusting Frequency References This section explains methods of adjusting frequency references. Adjusting Analog Frequency References Gain and bias are among the constants used to adjust analog inputs. Related Constants Name Control Methods Change Con- Open Open Setting Factory during Flux...
  • Page 220 H3-03. If using multi-function analog input terminal A2 as a frequency reference terminal, perform adjust- ments using H3-10 and H3-11. Adjustment can be made using H3-06 and H3-07 when multi-function analog input terminal A3 is used as a frequency reference terminal.
  • Page 221 Fig 6.25 Frequency Gain Adjustment (Terminal A2 Input) The frequency gain for terminal A1 is the sum of H3-02 and terminal A2 gain. For example, when H3-02 is set to 100% and terminal A2 is set to 5 V, the terminal A1 frequency reference will be 50%.

  • Page 222: Operation Avoiding Resonance (Jump Frequency Function)

    Terminal A1 input voltage 10 V Operation Avoiding Resonance (Jump Frequency Function) The jump frequency function operates the motor while avoiding resonance caused by characteristic frequen- cies in the machinery. This function is effective in creating a frequency reference dead band.
  • Page 223 Setting Jump Frequency Reference Using an Analog Input When constant H3-09 (Multi-function Analog Input Terminal A2 Function Selection) or H3-05 (Multi-func- tion Analog Input Terminal A3 Function Selection) is set to A (jump frequency), you can change the jump fre- quency using the terminal A2 input level.

  • Page 224: Adjusting Frequency Reference Using Pulse Train Inputs

    Adjusting Frequency Reference Using Pulse Train Inputs The frequency reference can be adjusted when b1-01 (Reference Selection) is set to 4 (Pulse Train Input). Set the pulse frequency in constant H6-02 to 100% reference, and then adjust the gain and bias accordingly using H6-03 and H6-04.

  • Page 225: Speed Limit (Frequency Reference Limit Function)

    Limit Limiting Minimum Frequency If you do not want the motor to rotate at below a given frequency, use constants d2-02 or d2-03. There are two methods of limiting the minimum frequency, as follows: Adjust the minimum level for all frequencies.
  • Page 226 (4 mA) Fig 6.30 Output Frequency Lower Level for Multi-function Analog Input If constant d2-02 and terminal A2 output frequency lower level have been set at the same time, the larger set value will become the frequency lower limit. INFO...

  • Page 227: Improved Operating Efficiency

    Reducing Motor Speed Fluctuation (Slip Compensation Function) When the load is large, the amount of motor slip also grows large and the motor speed decreases. The slip compensation function controls the motor at a constant speed, regardless of changes in load. When the motor is operating at the rated load, constant E2-02 (Motor Rated Slip) ×...
  • Page 228 3. Apply a load, and measure the speed to adjust the slip compensation gain. Adjust the slip compensation gain by 0.1 at a time. If the speed is less than the target value, increase the slip compensation gain, and if the speed is greater than the target value, reduce the slip compensation gain.
  • Page 229 Inverter current margin. Setting Precautions If using the device at medium to low speed only, if the power supply voltage is 10% or more higher than • the motor rated voltage, or if the torque control accuracy at high speeds is insufficient, it is not necessary to change the output voltage limit operation.
  • Page 230 * The factory setting will change when the control method is changed. (Open-loop vector 1 factory settings are given.) Adjusting Torque Compensation Gain Normally, there is no need to make this adjustment. Do not adjust the torque compensation gain when using open-loop vector control.

  • Page 231: Hunting-Prevention Function

    If the motor response is low, decrease the set value. • Hunting-prevention Function The hunting-prevention function suppresses hunting when the motor is operating with a light load. This func- tion can be used in V/f without PG and V/f with PG. Related Constants...

  • Page 232: Stabilizing Speed (Speed Feedback Detection Function)

    Stabilizing Speed (Speed Feedback Detection Function) The speed feedback detection control (AFR) function measures the stability of the speed when a load is sud- denly applied, by calculating the amount of fluctuation of the torque current feedback value, and compensat- ing the output frequency with the amount of fluctuation.

  • Page 233: Machine Protection

    * 3. The setting range depends on the capacity of the Inverter. * 4. This constant can be monitored or set only when 1 is set for C6-01 and F is set for C6-02. * 5. Displayed in Quick Programming Mode when motor 2 is set for a multi-function input.
  • Page 234 If leakage current from the Inverter is large: Set the carrier frequency low. If metallic noise from the motor is large: Set the carrier frequency high. When using V/f control or V/f control with PG, you can vary the carrier frequency according to the output •...
  • Page 235 10.0 kHz > C6-03 ≥ 5.0 kHz: K=2 5.0 kHz > C6-03: K=1 Fig 6.32 With vector control, the carrier frequency is fixed to the Carrier Frequency Upper Limit in C6-03 if user- • set or by the carrier frequency set in C6-02.

  • Page 236: Limiting Motor Torque (Torque Limit Function)

    Motor's rated torque Note The forward torque limit is the limit value when the analog input signal generates forward torque. This torque limit setting is enabled even when the analog input signal generates forward torque while the motor is operating (regeneration).
  • Page 237 Set the Torque Limit Value Using an Analog Input You can change the analog input level torque limit value by setting the torque limit in multi-function analog input terminals A2 and A3. The analog input terminal signal level is factory-set as follows:...

  • Page 238: Preventing Motor Stalling During Operation

    • may result in the motor falling or slipping. Torque limits using an analog input are the upper limit value (during 10 V or 20 mA input) of 100% of the • motor rated torque. To make the torque limit value during 10 V or 20 mA input 150% of the rated torque, set the input terminal gain to 150.0 (%).

  • Page 239: Changing Stall Prevention Level During Operation Using An Analog Input

    (4 mA) (8.8 mA) (20 mA) Fig 6.37 Stall Prevention Level during Operation Using an Analog Input If the motor capacity is smaller than the Inverter capacity or the motor stalls when operating at the factory set- tings, lower the stall prevention level during operation.
  • Page 240 (protected operation). Torque detec- Open-loop vector control: Motor tion level 1 rated torque is set as 100%. L6-02 0 to 300 150% V/f control: Inverter rated current is Torq Det 1 set as 100%.
  • Page 241 L6-01 and L6-04 Set Values and LCD Indications The relationship between alarms displayed by the Digital Operator when overtorque or undertorque is detected, and the set values in L6-01 and L6-04, is shown in the following table. LCD Indications Overtorque/...
  • Page 242 • Motor current (output torque) L6-02 or L6-05 L6-03 L6-03 Undertorque detection 1 NO or Undertorque detection 2 NO L6-06 L6-06 * The undertorque detection disabled margin is approximately 10% of the Inverter rated output current (or motor rated torque)

  • Page 243: Changing Overtorque And Undertorque Detection Levels Using An Analog Input

    Changing Overtorque and Undertorque Detection Levels Using an Ana- log Input If you set constant H3-09 (Multi-function Analog Input Terminal A2 Function Selection) or H3-05 (Multi- function Analog Input Terminal A3 Function Selection) to 7 (overtorque/undertorque detection level), you can change the overtorque/undertorque detection level.

  • Page 244: Motor Overload Protection

    * 1. Factory settings depend on Inverter capacity. (The values shown are for a 200 V Class Inverter for 0.4 kW.) * 2. The settings range is 10% to 200% of the Inverter rated output current. (The values shown are for a 200 V Class Inverter for 0.4 kW.)
  • Page 245 Motor overload (OL1, including OH3) pre-alarm (ON: 90% or more of the detection level) Setting Motor Rated Current Set the rated current value on the motor nameplate in constants E2-01 (for motor 1) and E4-01 (for motor 2). This set value is the electronic thermal base current. Setting Motor Overload Protection Characteristics Set the overload protection function in L1-01 according to the applicable motor.

  • Page 246: Setting Motor Protection Operation Time

    • With applications where the power supply is often turned ON and OFF, there is a risk that the circuit cannot be pro- tected even if this constant has been set to 1 (enabled), because the thermal value will be reset.

  • Page 247: Motor Overheating Protection Using Ptc Thermistor Inputs

    Setting the Motor Overload Pre-Alarm If the motor overload protection function is enabled (i.e., L1-01 is set to other than 0) and you set H2-01 to H2-05 (multi-function output terminals M1-M2, M3-M4, M5-M6, P3-C3, and P4-C4 function selection) to 1F (motor overload OL1 pre-alarm), the motor overload pre-alarm will be enabled.
  • Page 248 Operation during Motor Overheating Set the operation if the motor overheats in constants L1-03 and L1-04. Set the motor temperature input filter time constant in L1-05. If the motor overheats, the OH3 and OH4 error codes will be displayed on the Digital Operator.

  • Page 249: Limiting Motor Rotation Direction

    Limiting Motor Rotation Direction If you set motor reverse rotation prohibited, a reverse run command will not be accepted even if it is input. Use this setting for applications in which reverse motor rotation can cause problems (e.g., fans, pumps, etc.)

  • Page 250: Continuing Operation

    To restart the Inverter after power is restored, set L2-01 to 1 or 2. If L2-01 is set to 1, when power is restored within the time set in L2-02, the Inverter will restart. If the time set in L2-02 is exceeded, alarm UV1 (main circuit undervoltage) will be detected.

  • Page 251: Speed Search

    * 1. Factory settings depend on Inverter capacity. (The values shown are for a 200 V Class Inverter for 0.4 kW.) * 2. These values are for a 200 V Class Inverter. For a 400 V Class Inverter, double the values.
  • Page 252 0 V to the maximum voltage. * 1. The factory setting will change when the control method is changed. (Open-loop vector control 1 factory settings are given.) * 2. Factory settings depend on Inverter capacity. (The values shown are for a 200 V Class Inverter for 0.4 kW.)
  • Page 253 (invalid multi-function input selection) operation error may occur. Set either external search command 1 or external search command 2. If speed search during startup is selected when using V/f control with PG, the Unit will start from the fre- •...
  • Page 254 * Lower limit set using Speed Search Wait Time (b3-05). Minimum baseblock time (L2-03) × 0.7* Note: If the stopping method is set to coast to stop, and the run command turns ON in a short time, the operation may be the same as the search in case 2.
  • Page 255 Fig 6.44 Speed Search After Baseblock (Estimated Speed: Loss Time > L2-03) Current Detection Speed Search The time charts for current detection speed search is shown below. Speed Search at Startup The time chart when speed search at startup or external speed search command is selected is shown below.
  • Page 256 *2 After AC power supply recovery, motor waits for the minimum Minimum baseblock time (L2-03) Speed Search Wait Time (b2-03). Fig 6.46 Speed Search After Baseblock (Current Detection: Loss Time < L2-03) Loss Time Longer Than Minimum Baseblock Time •...

  • Page 257: Continuing Operation At Constant Speed When Frequency Reference Is Lost

    The frequency reference loss detection function continues operation using 80% speed of the frequency refer- ence before loss when the frequency reference using an analog input is reduced 90% or more in 400 ms. When the error signal during frequency reference loss is output externally, set H2-01 to H2-05 (multi-function contact output terminal M1-M2, M3-M4, M5-M6, P3-C3, and P4-C4 function selection) to C (frequency ref- erence lost).

  • Page 258: Restarting Operation After Transient Error (Auto Restart Function)

    Set the number of auto restarts in constant L5-01. The auto restart function can be applied to the following errors. If an error not listed below occurs, the protec- tion function will operate and the auto restart function will not.

  • Page 259: Inverter Protection

    The most likely causes of RH (Mounted braking resistor overheating) being detected are that the deceleration time is too short or that the motor regeneration energy is too large. In these cases, lengthen the deceleration time or replace the Braking Resistor Unit with one with a higher breaking capacity.

  • Page 260: Reducing Inverter Overheating Pre-Alarm Warning Levels

    A fault will be given in setting 0 to 2 and a minor fault will be given in setting 3. * The factory setting depends upon the Inverter capacity. The value for 200 V Class Inverter of 0.4 kW is given.

  • Page 261: Input Terminal Functions

    Operator) and remote (input method using b1-01 and b1-02). You can switch between local and remote by turning ON and OFF the terminals if an output from H1-01 to H1-10 (multi-function contact input terminal S3 to S12 function selection) has been set to 1 (local/remote selection).

  • Page 262: Blocking Inverter Outputs (Baseblock Commands)

    Fig 6.48 Baseblock Commands If using baseblock commands with a variable load, do not frequently input baseblock commands during oper- ation, as this may cause the motor to suddenly start coasting, and may result in the motor falling or slipping. IMPORTANT...

  • Page 263: Stopping Acceleration And Deceleration (Acceleration/Deceleration Ramp Hold)

    Set one of the constants H1-01 to H1-10 (multi-function contact input terminal S3 to S12 function selection) to A (acceleration/deceleration ramp hold) to stop acceleration and deceleration when the terminal is turned ON and to store the output frequency at that point in time. Acceleration and deceleration will restart when the terminal is turned OFF.

  • Page 264: Raising And Lowering Frequency References Using Contact Signals (Up/Down)

    Input Terminal Functions Application Precautions When d4-01 is set to 1, the output frequency on hold is stored even after the power supply is turned OFF. If • performing operations using this frequency after the Inverter has also been turned OFF, input the run com- mand with the Acceleration/Deceleration Ramp Hold turned ON.
  • Page 265 ON and the run command is input, the motor accelerates to the frequency reference that has been stored. To reset (i.e., to 0 Hz) the stored frequency reference, turn ON the UP or DOWN command while the run command is ON.
  • Page 266 Forward operation/stop UP command Reference frequency reset DOWN command Frequency matching signal* Power supply * The frequency matching signal turns ON when the motor is not accelerating/ decelerating while the run command is ON. Fig 6.51 UP/DOWN Commands Time Chart...
  • Page 267 Speed Limit) using two contact signal inputs. To use this function, set One of the constants H1-01 to H1-10 (multi-function contact terminal inputs S3 to S12 function selection) to 1C (Trim Control Increase command) and 1D (Trim Control Decrease command).

  • Page 268: Hold Analog Frequency Using User-Set Timing

    Hold Analog Frequency Using User-set Timing When one of H1-01 to H1-10 (multi-function contact input terminal S3 to S12 function selection) is set to 1E (sample/hold analog frequency command), the analog frequency reference will be held from 100 ms after the terminal is turned ON, and operation will continue thereafter at that frequency.

  • Page 269: Jog Frequency Operation Without Forward And Reverse Commands (Fjog/Rjog)

    OFF operation. When using the FJOG/RJOG commands, there is no need to input the run command. To use this function, set one of the constants H1-01 to H1-10 (multi-function contact input terminal S3 to S12 function selection) to 12 (FJOG command) or 13 (RJOG command).
  • Page 270 (Error) (Warning) Note 1. Set the input level to detect errors using either signal ON or signal OFF. (NO contact: External fault when ON; NC contact: External fault when OFF). 2. Set the detection method to detect errors using either constant detection or detection during operation.

  • Page 271: Monitor Constants

    Monitor Constants This section explains the analog monitor and pulse monitor constants. Using the Analog Monitor Constants This section explains the analog monitor constants. Related Constants Name Control Methods Change Con- Open Open Setting Factory during Flux Description stant Loop...
  • Page 272 U1- (status monitor). Alternatively, you can output monitor items (U1- [status monitor]) from analog output option terminal channels 1 and 2 on analog monitor cards AO-08 and AO-12. Refer to the table of constants, and set the val- ues.
  • Page 273 Monitor items corresponding to 0 to ±10 V output 0 to 10 V signals when the monitor value is positive (+), and 0 to -10 V signals when the monitor value is negative (-). For monitor items corresponding to 0 to ±10 V, refer to Chapter 5 User Constants.

  • Page 274: Using Pulse Train Monitor Contents

    Adjust the pulse frequency output from pulse monitor terminal MP-SC. Set the pulse frequency output when 100% frequency is output to H6-07. Set H6-06 to 2, and H6-07 to 0, to output the frequency synchronous with the Inverter's U-phase output. Application Precautions When using a pulse monitor constant, connect a peripheral device according to the following load conditions.
  • Page 275 External power supply Using a Sinking Input External Power 12 VDC±10%, Load impedance Supply (V) 15 VDC±10% Sink Current (mA) 16 mA Max Sinking current...

  • Page 276: Individual Functions

    The master performs signal communications with one slave at a time. Consequently, you must set the address of each slave beforehand, so the master can perform signal communications using that address. Slaves receiv- ing commands from the master perform the specified function, and send a response to the master.

  • Page 277: Communications Connection Terminal

    6. Perform communications with the PLC. Set the timer on the master to monitor response time from the slave. Set the master so that if the slave does not respond to the master within the set time, the same command message will be sent from the master again.
  • Page 278 Select to enable or disable RTS ON/OFF control. H5-07 0: Disabled (RTS is always ON) 0 or 1 RTS Control 1: Enabled (RTS turns ON only when sending) * Set H5-01 to 0 to disable Inverter responses to MEMOBUS communications.

  • Page 279: Message Format

    Fig 6.56 Message Spacing Slave Address Set the Inverter address from 0 to 32. If you set 0, commands from the master will be broadcast (i.e., the Inverter will not return responses). Function Code The function code specifies commands. There are three function codes, as shown below.
  • Page 280 Read the contents of the storage register only for specified quantities whose addresses are consecutive, starting from a specified address. The contents of the storage register are separated into higher place 8 bits and lower place 8 bits, and comprise the data within response messages in address order.
  • Page 281 Write the specified data to each specified storage register from the specified addresses. The written data must be in the following order in the command message: Higher place 8 bits, then lower place 8 bits, in storage reg- ister address order.
  • Page 282 INFO Data Tables The data tables are shown below. The types of data are as follows: Reference data, monitor data, and broadcast data. Reference Data The reference data table is shown below. You can both read and write reference data.

  • Page 283: Monitor Data

    Broadcast data terminal S7 input 1: Enabled 0: Disabled Broadcast data terminal S8 input 1: Enabled 0: Disabled Note Write 0 to all unused bits. Also, do not write data to reserved registers. Monitor Data The following table shows the monitor data. Monitor data can only be read.
  • Page 284 Bit F MEMOBUS communications time-out 1: Timed out Multi-function contact output status Bit 0 Multi-function contact output 1 (terminal M1 - M2) 1: ON 0: OFF Bit 1 Multi-function contact output 2 (terminal M3 - M4) 1: ON 0: OFF 002DH...

  • Page 285: Enter Command

    003FH Control method Note Communications error details are stored until an fault reset is input (you can also reset while the Unit is operating). Broadcast Data The following table shows the broadcast data. You can also write this data.

  • Page 286: Error Codes

    Application Precautions Set a timer in the master to monitor response time from the slaves. Make the setting so that if no response is sent to the master from the slave within the set time, the same command message is sent again from the mas-...
  • Page 287 Perform the self-diagnosis function using the following procedure. 1. Turn ON the power supply to the Inverter, and set 67 (communications test mode) in constant H1-05 (Ter- minal S7 Function Selection). 2. Turn OFF the power supply to the Inverter.

  • Page 288: Using The Timer Function

    Setting Example When the timer function input ON time is longer than the value set in b4-01, the timer output function is turned ON. When the timer function input OFF time is longer than the value set in b4-02, the timer output function is turned OFF.

  • Page 289: Using Pid Control

    Using PID Control PID control is a method of making the feedback value (detection value) match the set target value. By combin- ing proportional control (P), integral control (I), and derivative control (D), you can even control targets (machinery) with play time.
  • Page 290 0.0 to b5-03 1.0 s I-control is not performed when 360.0 PID I Time the setting is 0.0. Integral (I) limit Sets the I-control limit as a per- 0.0 to b5-04 centage of the maximum output 100.0% 100.0 PID I Limit frequency.
  • Page 291 0.0 Hz level as a frequency. 400.0 PID Sleep Level PID sleep oper- ation delay time Set the delay time until the PID 0.0 to b5-16 0.0 s sleep function starts in seconds. 25.5 PID Sleep Time Accel/decel...
  • Page 292 PID output becomes the Inverter output frequency, and D control is used in the PID feedback value. PID output is added as compensation value of the Inverter output frequency, and D control is used in the difference between PID target value and feedback value.
  • Page 293 Select the PID control target value input method according to the setting in b1-01 (Reference Selection). Normally, the frequency reference selected in b1-01 is the PID target value, but you can also set the PID target value as shown in the following table.
  • Page 294 Before adjustment After adjustment Time Suppressing Long-cycle Vibration If vibration occurs with a longer cycle than the integral time (I) set value, the integral operation is too strong. Lengthen the integral time (I) to suppress the vibration. Response Before adjustment...
  • Page 295 Suppressing Short Cycle Vibration If vibration occurs when the vibration cycle is short, and the cycle is almost identical to the derivative time (D) set value, the differential operation is too strong. Shorten the derivative time (D) to suppress the vibration.
  • Page 296 Individual Functions PID Control Block The following diagram shows the PID control block in the Inverter. Fig 6.60 PID Control Block...
  • Page 297 Inverter output frequency may accelerate to the maximum output frequency. When setting b5-12 to 1 and the status of the PID feedback value detection level in b5-13 is insufficient and continues for the time set in b5-14, an FbL (PID feedback reference lost) alarm will be displayed on the Digi- tal Operator and Inverter operation will continue.

  • Page 298: Energy-Saving

    * 1. The factory setting is 1.0 when using V/f control with PG. * 2. The factory setting is 2.00 s when Inverter capacity is 55 kW min. The factory setting will change when the control method is changed. (Open-loop vec- tor 1 factory settings are given.)
  • Page 299 Constant b8-06 (Search Operation Voltage Limiter) controls the range that con- trol the voltage using the search operation. For 200 V Class Inverters, set the range to 100%/200 V, and for 400 V Class Inverters, set the range to 100%/400 V. Set to 0 to disable the search operation.

  • Page 300: Setting Motor Constants

    * 1. The factory settings depend on Inverter capacity (the values shown are for a 200 V Class Inverter for 0.4 kW). * 2. The setting range is 10% to 200% of the Inverter rated output current (the values shown are for a 200 V Class Inverter for 0.4 kW).
  • Page 301 Factory setting is the no-load current value for a standard Yaskawa 4-pole motor. Number of Motor Poles Setting E2-04 is displayed only when V/f control method with PG is selected. Set the number of motor poles (number of poles) as written on the motor nameplate.

  • Page 302: Setting The V/F Pattern

    Individual Functions Setting the V/f Pattern In V/f control method, you can set the Inverter input voltage and the V/f pattern as the need arises. Related Constants Name Control Methods Change Con- Open Open Setting Factory during Description Flux stant...
  • Page 303 Set the V/f pattern in E1-03 when using V/f control (with or without a PG). There are two methods of setting the V/f pattern: Select one of the 15 pattern types (set value: 0 to E) that have been set beforehand, or set a user-defined V/f pattern (set value: F).
  • Page 304 60 Hz * The torque is protected by the fully automatic torque boost function, so normally there is no need to use this pattern. When you select these patterns, the values of constants E1-04 to E1-10 are changed automatically. There are three types of values for E1-04 to E1-10, depending on the Inverter capacity.
  • Page 305 0.4 to 1.5 kW V/f Pattern The diagrams show characteristics for a 200-V class motor. For a 400-V class motor, multiply all voltages by Constant Torque Characteristics (Set Value: 0 to 3) • Set Value 0 50 Hz Set Value 1...
  • Page 306 Individual Functions 2.2 to 45 kW V/f Pattern The diagrams show characteristics for a 200-V class motor. For a 400-V class motor, multiply all voltages by Constant Torque Characteristics (Set Value: 0 to 3) • Set Value 0 50 Hz...
  • Page 307 55 to 300 kW V/f Pattern The diagrams show characteristics for a 200-V class motor. For a 400-V class motor, multiply all voltages by Constant Torque Characteristics (Set Value: 0 to 3) • Set Value 0 50 Hz Set Value 1...
  • Page 308 Individual Functions When E1-03 is set to F (User-defined V/f pattern), you can set constants E1-04 to E1-10. If E1-03 is set to anything other than F, you can only refer to constants E1-04 to E1-10. If the V/f characteristics are linear, set E1-07 and E1-09 to the same value.

  • Page 309: Torque Control

    Torque Control With flux vector control or open-loop vector control 2, the motor's output torque can be controlled by a torque reference from an analog input. Set d5-01 to 1 to control torque. Related Constants Name Control Methods Change Con-...
  • Page 310 Set the delay time from inputting control the multi-function input “speed/ switching timer torque control change” (from ON to OFF or OFF to ON) until the control is actually changed in ms units. This function is enabled when the 0 to d5-06 multi-function input “speed/...

  • Page 311: Monitor Function

    Vec- Value Speed control circuit operating for torque control (except when stopped). The external torque reference will be limited if torque control is selected. Output when the motor is rotating at the speed limit. Multi-function Analog Inputs (H3-05, H3-09) Control Methods...
  • Page 312 Application Precautions If the analog signal input level is 0 to 10 V or 4 to 20 mA, a forward torque reference will not be applied. To apply reverse torque, use an input level of -10 V to 10 V or switch the direction using a multi-function input...
  • Page 313 The speed limit circuit Application Precautions There are two ways to set a speed limit: using an input from an analog input terminal and setting a speed limit in d5-04. The inputs methods for a speed limit are listed in the following table.
  • Page 314 The speed limit bias can be set to limit both the forward and reverse speed to the same value. This differs from the operation of the speed limit setting. To use the speed limit bias, set d5-04 to 0 and set the bias in d5-05 as a percentage of the maximum output frequency.
  • Page 315 If the motor is rotating in reverse, a negative compensation value is output. If the speed is 0 or is below the speed limit, a 0 compensation value is output.
  • Page 316 Since the polarity of the voltage input determines the direction, only forward torque compensation can be input when the 0 to 10 V or 4 to 20 mA signal level has been selected. If you want to input reverse torque com- pensation, be sure to select the 0 to ±10 V signal level.

  • Page 317: Speed Control (Asr) Structure

    (PG feedback or speed estimator) is 0. Speed control (ASR) during V/ f control with a PG adjusts the output frequency so that the deviation between the speed reference and the esti- mated speed (PG feedback or speed estimator) is 0. The following block diagram shows the structure of the speed control for vector or V/f control with a PG.
  • Page 318 ASR I Limit * 1. When the control method is changed, the Inverter reverts to factory settings. (Refer to section on constants with factory setting that depend on the con- trol mode.) * 2. The setting range is 1.00 to 3.00 for flux vector control and open-loop vector control 2.

  • Page 319: Fine Adjustments

    OFF: Use proportional gain in C5-01 ON: Use proportional gain in C5-03 Speed Control (ASR) Gain Adjustment for Vector Control Use the following procedure to adjust C5-01 and C5-03 with the mechanical system and actual load con- nected. At zero-speed, increase C5-01 (ASR P Gain 1) until there is no oscillation.
  • Page 320 Adjusting ASR Proportional Gain 1 (C5-01) This gain setting adjusts the responsiveness of the speed control (ASR). The responsiveness is increased when this setting is increased. Usually this setting is higher for larger loads. Oscillation will occur if this setting is increased too much.
  • Page 321 ASR Proportional Gain Switch Setting When one of the multi-function inputs (H1-01 to H1-10) is set to 77, the input can be used to switch between C5-01 (proportional gain 1) and C5-03 (proportional gain 2). Proportional gain 2 is used when the multi-func- tion input is ON.

  • Page 322: Droop Control Function

    Decrease C5-04 (ASR integral time 2) to a level where there is no oscillation. Monitor the Inverter's output current and verify that it is less than 50% of the Inverter rated current. If the out- put current exceeds 50% of the Inverter's rated current, decrease C5-03 and increase C5-04.

  • Page 323: Zero-Servo Function

    The zero-servo function holds the motor when the motor is stopped in what is call a zero-servo status. This function can be used to stop the motor even with an external force acts on the motor or the analog reference input is offset.
  • Page 324 Individual Functions The zero-servo function is enabled when one of the multi-function inputs (H1-01 to H1-10) is set to 72 (zero servo command). If the zero servo command is ON when the frequency (speed) reference falls below the zero speed level, a zero-servo status is implemented.
  • Page 325 Zero-servo status Fig 6.74 Time Chart for Zero Servo Application Precautions Be sure to leave the run command input ON. If the run command is turned OFF, the output will be inter- • rupted and the zero-servo function will become ineffective.
  • Page 326 Individual Functions The holding force of the zero-servo is adjusted in b9-01. The holding force will increase if the value of the • setting is increased, but oscillation and hunting will occur if the setting is too large. Adjust b9-01 after adjusting the speed control gain.

  • Page 327: Digital Operator Functions

    Digital Operator Functions This section explains the Digital Operator functions. Setting Digital Operator Functions You can set Digital Operator-related constants such as selecting the Digital Operator display, multi-function selections, and copy functions. Related Constants Name Control Methods Change Con- Open...
  • Page 328 Fan ON Time from the set value. Changing Frequency Reference and Display Units Set the Digital Operator frequency reference and display units using constant o1-03. You can change the units for the following constants using o1-03. U1-01 (Frequency Reference) •...
  • Page 329 For example, enter the Run command using a 0 Hz reference, and then continuously press the UP Key to increment the frequency reference by 0.01 Hz only for the first 0.5 s, and then by 0.01 Hz every 80 ms for 3 s thereafter.

  • Page 330: Copying Constants

    Digital Operator Functions Copying Constants The Digital Operator can perform the following three functions using the built-in EEPROM (non-volatile memory). Store Inverter constant set values in the Digital Operator (READ) • Write constant set values stored in the Digital Operator to the Inverter (COPY) •...
  • Page 331 - 01=0 COPY SELECT An error may occur while saving to memory. If an error is displayed, press any key to cancel the error display and return to the o3-01 display. Error displays and their meanings are shown below. (Refer to Chapter 7 Errors when Using the Digital Oper- ator Copy Function.)
  • Page 332 Select READ Permitted Prevent overwriting the data stored in EEPROM in the Digital Operator by mistake. With o3-02 set to 0, if you set o3-01 to 1, and perform the write operation, PrE will be displayed on the Digital Operator, and the write operation will be stopped.
  • Page 333 During the copy operation, errors may occur. If an error is displayed, press any key to cancel the error display and return to the 03-01 display. Error displays and their meanings are shown below. (Refer to Chapter 7 Errors when Using Digital Operator Copy Function.)

  • Page 334: Prohibiting Writing Constants From The Digital Operator

    • Prohibiting Writing Constants from the Digital Operator If you set A1-01 to 0, you can refer to and set the A1 and A2 constant groups, and refer to drive mode, using the Digital Operator. If you set one of the constants H1-01 to H1-05 (multi-function contact input terminal S3 to S7 function selec- tion) to 1B (write constants permitted), you can write constants from the digital operator when the terminal that has been set is ON.

  • Page 335: Setting A Password

    (A) mode.) Setting a Password When a password is set in A1-05, if the set values in A1-04 and A1-05 do not match, you cannot refer to or change the settings of constants A1-01 to A1-03, or A2-01 to A2-32.

  • Page 336: Displaying User-Set Constants Only

    A1-01 (Constants Access Level). Set the number of the constant to which you want to refer in A2-01 to A2-32, and then set A1-01 to 1. You can set and refer to constants set in A1-01 to A1-03 and A2-01 to A2-32 only, using advanced programming mode.

  • Page 337: Options

    Options This section explains the Inverter option functions. Performing Speed Control with PG This section explains functions with V/f control with PG. Related Constants Name Control Methods Change Con- Open Open Setting Factory during Flux Description stant Loop Loop Range...
  • Page 338 0.0 to time F1-14 2.0 s detected if the detection time con- 10.0 PGO Detect tinues beyond the set time. Time * The factory setting will change when the control method is changed. (Flux vector control factory settings are given.)
  • Page 339 Using PG Speed Control Card There are four types of PG Speed Control Card that can be used in V/f control with PG. PG-A2: A-phase (single) pulse input, compatible with open collector or complimentary outputs. • PG-B2: A/B-phase pulse input, compatible with complimentary outputs.
  • Page 340 Setting Number of Gear Teeth Between PG and Motor Set the number of PG gear teeth in F1-12 and F1-13. If there are gears between the motor and PG, you can operate the motor by setting the number of gear teeth.

  • Page 341: Using Digital Output Cards

    Using Digital Output Cards There are two types of Inverter digital output cards: DO-02C • Relay contact output (DPDT contact) DO-08 • 6 photocoupler output channels (shared commons) 2 (independent) relay contact output channels (NC contact) Photocoupler TD5 Photocoupler Inverter...
  • Page 342 If using DO-02C Digital Output Card, set the output items using F5-01 and F5-02. Setting Output Items for the DO-08 Digital Output Card If using DO-08 Digital Output Card, select one of the following three output modes according to the setting in F5-09.

  • Page 343: Using An Analog Reference Card

    AI-14U provides 2 channels of bi-polar inputs with 14-bit A/D conversion accuracy. Channel 1 is a voltage input and channel 2 is a current input. The sum of channels 1 and 2 is a frequency input. F2-01 does not need to be set for the AI-14U.

  • Page 344: Using A Digital Reference Card

    When using a DI-08 or DI-16H2 Digital Reference Card, set b1-01 (Reference selection) to 3 (Option Card). The DI-16H2 can be used to set a frequency using a 16-bit digital reference. The DI-08 can be used to set a frequency using a 8-bit digital reference.
  • Page 345 Selecting Input Terminal Functions for the DI-16H2 Digital Reference Card The frequency reference from the DI-16H2 Card is determined by the setting of F3-01 and the 12/16-bit switch on the Option card. The possible settings are listed in the following table.
  • Page 346 Setting F3-01 to 6 is valid only when the D1-16H2 is used. Using this setting, a frequency from 0.00 to • 399.8 Hz can be set in BCD. The sign bit is used as a data bit, so only positive (plus) data can be set. Also, the digit starts from 0, so the minimum setting is 0.02 Hz.
  • Page 347 The DI-08 will not function if F3-01 is set to 6 Selecting the Digital Reference The range of the digital references is determined by the combination of the settings of o1-03 and F3-01. The information monitored in U1-01 (Frequency reference) will also change.
  • Page 348 -11000 to 11000 X = 3, unit: 0.001 to 3 DI-08 Reference Ranges When using the DI-08, the following ranges can be set depending on the settings of the constants. U1-01 Monitor Unit F3-01 Reference Input Mode Reference Setting Range...
  • Page 349 -154...

  • Page 350: Troubleshooting

    Troubleshooting This chapter describes the fault displays and countermeasure for the Inverter and motor prob- lems and countermeasures. Protective and Diagnostic Functions ......7-2 Troubleshooting ............7-17...

  • Page 351: Protective And Diagnostic Functions

    When the Inverter detects a fault, the fault contact output operates, and the Inverter output is shut OFF causing the motor to coast to a stop. (The stopping method can be selected for some faults, and the selected stopping method will be used with these faults.) A fault code is displayed on the Digital Operator.
  • Page 352 “Enabled.” power supply are too large. • The voltage balance between phases is bad. • There is a broken wire in the output cable. Reset the fault after correcting its Output Open-phase • There is a broken wire in the motor cause.
  • Page 353 • Replace the Inverter if the fault Transistr properly. continues to occur. The load is too heavy. The accelera- Check the size of the load and the tion time, deceleration time, and cycle length of the acceleration, deceler- time are too short. ation, and cycle times.
  • Page 354 Corrective Actions • Make sure that the current set- Undertorque Detected 2 ting in L6-05 and time setting in There has been a current less than the L6-06 are appropriate. Undertorq setting in L6-05 for longer than the • Check the mechanical system Det 2 setting in L6-06.
  • Page 355 Operator. connect RUN command from the Digital Operator. MEMOBUS Communications Error Check the communications A normal reception was not possible devices and communications sig- Memobus for 2 s or longer after control data was nals. Com Err received once.
  • Page 356 Protective and Diagnostic Functions Table 7.1 Fault Displays and Processing (Continued) Display Meaning Probable Causes Corrective Actions Option Communications Error Check the communications A communications error was detected devices and communications sig- Option during a run command or while setting nals.
  • Page 357 Table 7.1 Fault Displays and Processing (Continued) Display Meaning Probable Causes Corrective Actions Try turning the power supply off CPF07 and on again. ASIC internal RAM fault RAM-Err The control circuit is damaged. Replace the Inverter. Try turning the power supply off CPF08 and on again.

  • Page 358: Alarm Detection

    Protective and Diagnostic Functions Alarm Detection Alarms are detected as a type of Inverter protection function that do not operate the fault contact output. The system will automatically returned to its original status once the cause of the alarm has been removed.
  • Page 359 Table 7.2 Alarm Displays and Processing (Continued) Display Meaning Probable causes Corrective Actions • Make sure that the current setting in Overtorque 2 L6-05 and time setting in L6-06 are (blinking) There has been a current greater than Over- appropriate.
  • Page 360 (blinking) External fault (Input terminal S12) Ext Fault PID Feedback Reference Lost A PID feedback reference loss was detected (b5-12 = 2) and the PID feed- (blinking) Feed- back input was less than b5-13 (PID back feedback loss detection level) for...
  • Page 361 Table 7.2 Alarm Displays and Processing (Continued) Display Meaning Probable causes Corrective Actions Option Card Communications Error A communications error occurred in a Check the communications devices (blinking) Option mode where the run command or a and signals. Com Err frequency reference is set from an Communications Option Card.

  • Page 362: Operation Errors

    Operation Errors An operation error will occur if there is an invalid setting or a contradiction between two constant settings. It won't be possible to start the Inverter until the constants have been set correctly. (The alarm output and fault contact outputs will not operate either.)
  • Page 363 Table 7.3 Operation Error Displays and Incorrect Settings (Continued) Display Meaning Incorrect settings One of the following constant setting errors exists. • C6-05 (Carrier Frequency Gain) > 6, the Carrier Frequency Lower Limit (C6-04) OPE11 > the Carrier Frequency Gain(C6-05) Carr Freq/ Constant setting error •...

  • Page 364: Errors During Autotuning

    The errors that can occur during autotuning are given in the following table. If an error is detected, the motor will coast to a stop and an error code will be displayed on the Digital Operator. The error contact output and alarm output will not function.

  • Page 365: Errors When Using The Digital Operator Copy Function

    The errors that can occur when using the copy function from the Digital Operator are given in the following table. An error code will be displayed on the Digital Operator. If a Digital Operator key is pressed when an error code is being displayed, the display will be cleared and 03-01 will be displayed. The error contact output and alarm output will not function.

  • Page 366: If Constant Constants Cannot Be Set

    This occurs when “constant write enable” (set value: 1B) is set for a multi-function input terminal (H1-01 to H1-10). If the constant write enable input is OFF, the constants cannot be changed. Turn it ON and then set the constants.

  • Page 367: If The Motor Does Not Operate

    The following causes are possible. If the Inverter is not in drive mode, it will remain in ready status and will not start. Press the Menu Key to dis- play the drive mode, and enter the drive mode by pressing the DATA/ENTER Key. “-Rdy-” will be displayed when drive mode is entered.

  • Page 368: If The Direction Of The Motor Rotation Is Reversed

    (Multi-function Analog Input Terminal A2 Selection) are set to 1 (frequency gain), and if no voltage (current) is input, then the frequency reference will be zero. Check to be sure that the set value and analog input value are correct.

  • Page 369: If The Motor Does Not Put Out Torque Or If Acceleration Is Slow

    When a torque limit has been set in constants L7-01 to L7-04, no torque will be output beyond that limit. This can cause the torque to be insufficient, or the acceleration time to be too long. Check to be sure that the value set for the torque limit is suitable.

  • Page 370: Control Mode

    When a torque limit has been set in constants L7-01 to L7-04, no torque will be output beyond that limit. This can cause the deceleration time to be too long. Check to be sure that the value set for the torque limit is suit- able.

  • Page 371: If The Motor Overheats

    Normally the maximum surge voltage is three times the Inverter's input power supply voltage (i.e., 1,200 V for 400 V class). Be sure to use a motor with a withstand voltage between the motor phases that is greater than the maximum surge voltage. In particular, when using a 400 V class Inverter, use a special motor for Inverters.

  • Page 372: If The Ground Fault Interrupter Operates When The Inverter Is Run

    Change to a ground fault interrupter with a high leakage detection level (i.e., a sensitivity current of 200 mA or greater per Unit, with an operating time of 0.1 s or more), or one that incorporates high frequency countermeasures (i.e., one designed for use with Invert- ers).

  • Page 373: If The Motor Rotates Even When Inverter Output Is Stopped

    If 0 V is Detected When the Fan is Started, or Fan Stalls Generation of 0 V (main circuit voltage) and stalling can occur if the fan is turning when it is started. The DC injection braking is insufficient when starting.
  • Page 374 The frequency reference upper limit has been reached. The output frequency upper limit is determined by the following formula: Maximum Output Frequency (E1-04) × Frequency Reference Upper Limit (d2-01) / 100 Check to be sure that the constant E1-04 and d2-01 settings are suitable.

  • Page 376: Maintenance And Inspection

    Maintenance and Inspection This chapter describes basic maintenance and inspection for the Inverter Maintenance and Inspection........8-2...

  • Page 377: Outline Of Maintenance

    Always turn OFF the power supply before beginning inspection. Confirm that the LCD and LED indicators on the front cover have all turned OFF, and then wait until at least five minutes has elapsed before beginning the inspection. Be sure not to touch terminals right after the power has been turned off. Doing so can result in electric shock.

  • Page 378: Periodic Maintenance Of Parts

    Maintenance and Inspection Periodic Maintenance of Parts The Inverter is configured of many parts, and these parts must be operating properly in order to make full use of the Inverter functions. Among the electronic components, there are some that require maintenance depending on their usage condi- tions.

  • Page 379: Cooling Fan Replacement Outline

    Inverter from the installation panel. Removing the Cooling Fan 1. Press in on the right and left sides of the fan cover in the direction of arrows 1 and when pull the fan out in the direction of arrow 2.
  • Page 380 After attaching a new cooling fan, reverse the above procedure to attach all of the components. When attaching the cooling fan to the mounting bracket, be sure that the air flow faces the top of the Inverter. Air flow direction...

  • Page 381: Removing And Mounting The Control Circuit Terminal Card

    2. Remove the connecting line connectors connected to FE and NC on the control circuit terminal card. 3. Loosen the mounting screws (1) on the left and right sides of the control terminals until they are free. (It is not necessary to remove these screws completely. They are self-rising.) 4.

  • Page 382: Specifications

    Specifications This chapter describes the basic specifications of the Inverter and specifications for options and peripheral devices. Standard Inverter Specifications ........9-2 Specifications of Options and Peripheral Devices ..9-5...

  • Page 383: Standard Inverter Specifications

    * 2. The voltage of the cooling fan for 200 V Class Inverters of 30 kW is three-phase, 200, 208, or 220 V at 50 Hz or 200, 208, 220, or 230 V at 60 Hz.
  • Page 384 * 1. The maximum applicable motor output is given for a standard 4-pole Yaskawa motor. When selecting the actual motor and Inverter, be sure that the Inverter's rated current is applicable for the motor's rated current. * 2. A 3-wire transformer (optional) is required on the power supply for 12-phase rectification.

  • Page 385: Common Specifications

    * 1. Rotational autotuning must be performed to ensure obtaining the specifications given for flux vector control and open-loop vector control 1 and 2. * 2. When connecting a Braking Resistor or Braking Resistor Unit, set L3-04 (Stall prevention selection during deceleration) to 0 (disabled). Stopping may not be pos- sible in the specified deceleration time if this function is not disabled.

  • Page 386: Specifications Of Options And Peripheral Devices

    Calibrates the scale of frequency meters and ammeters. Resistor * 1. Use a ground fault interrupter with a current sensitivity of 200 mA minimum and an operating time of 0.1 s minimum to prevent operating errors. The interrupter must be suitable for high-frequency operation.
  • Page 387 Enables high-precision, high-resolution setting of analog Analog Ref- speed references. 73600- TO-C736- erence Card • Input signal ranges: 0 to 10 V (20 kΩ), 1 channel C001X 30.13 4 to 20 mA (250 Ω), 1 channel AI-14U • Input resolution:...
  • Page 388 Type Name Function Number Used for V/f with PG control. Speed feedback is performed using the PG attached to the motor to compensate for speed fluctuations caused by slipping. 73600- • A-phase pulse (single pulse) input (voltage, complemen- TO-C736- PG-A2...
  • Page 389 Code Num- Document Type Name Function Number DeviceNet Used to communicate with an Inverter from a host computer Communica- 73600- using DeviceNet communications to start/stop Inverter opera- tions Inter- C021X tion, read/set parameters, and read/set monitor constants (out- face Card put frequencies, output currents, etc.).

  • Page 390: Appendix

    Appendix This chapter provides precautions for the Inverter, motor, and peripheral devices and also pro- vides lists of constants. Varispeed G7 Control Modes........10-2 Inverter Application Precautions ........ 10-7 Motor Application Precautions .........10-10 Conformance to CE Markings........10-12 User Constants ............10-19...

  • Page 391: Varispeed G7 Control Modes

    Varispeed G7-Series Inverters support the following five control modes, allowing the selection of a control mode to suit the required purpose. Table 10.1 provides an overview of the control modes and their features. Table 10.1 Overview and Features of Control Modes...
  • Page 392 * 1. The variable speed control range. (For continuous operation, the motor's temperature rise must be considered.) * 2. The speed deviation in relation to the maximum speed with a rated load and when the load is stable. (For open-loop vector control 1 and 2, the motor temperature must be 25 °C ±...
  • Page 393 For estimated speed searching, the motor and Inverter must be connected 1:1. The speed search must be • performed at a frequency of 130 Hz or less and with a motor with the same number of frames as or one frame less than the Inverter capacity.

  • Page 394: Control Modes And Applications

    ), set it to as high a value as possible within the range allowed by • the system. If torque limit acceleration is performed, or if the motor slips at the torque limit causing a CF (control • fault), increase N4-08 (proportional gain of speed estimator) in steps of 5 until acceleration and decelera- tion are performed smoothly.
  • Page 395 (Thermal relay) Inverter Fig 10.1 V/f Control with PG (A1-02 = 1) V/f control with a PG enables precise control of machine line speed. Speed control using the speed feedback of the machine shaft is possible in this mode. Conveyor Inverter...

  • Page 396: Inverter Application Precautions

    DC reactors are built into 200 V class Inverters of 18.5 to 110 kW and 400 V class Inverters of 18.5 to 300 kW. If a thyristor convertor, such as a DC drive, is connected in the same power supply system, connect a DC or AC reactor regardless of the power supply conditions shown in the following diagram.

  • Page 397: Installation

    Observe the following precautions when making settings for an Inverter. Upper Limits The Digital Operator can be used to set high-speed operation up to a maximum of 400 Hz (depends on the car- rier frequency). Incorrect settings can be dangerous. Use the maximum frequency setting functions to set upper limits.

  • Page 398: Handling

    Observe the following precautions when wiring or performing maintenance for an Inverter. Wiring Check The Inverter will be internally damaged if the power supply voltage is applied to output terminal U, V, or W. Check wring for any mistakes before supplying power. Check all wiring and sequences carefully.

  • Page 399: Motor Application Precautions

    100% torque is required continuously at low speed, consider using a special inverter or vector motor. Installation Withstand Voltage If the input voltage is high (440 V or higher) or the wiring distance is long, the motor insulation voltage must be considered. Contact your Yaskawa representative for details.

  • Page 400: Using The Inverter For Special Motors

    The rated input current of submersible motors is higher than that of standard motors. Therefore, always select an Inverter by checking its rated output current. When the distance between the motor and Inverter is long, use a cable thick enough to connect the motor and Inverter to prevent motor torque reduction.

  • Page 401: Conformance To Ce Markings

    Varispeed G7-Series Inverters must satisfy the following conditions in order to conform to the Low Voltage Directive. It must be used under conditions corresponding to overvoltage category 3 or less and pollution degree 2 or • less as specified in IEC664.
  • Page 402 Conformance to CE Markings Input Fuses In order to conform to the Low Voltage Directive, fuses must be provided for inputs. Use UL-compatible input fuses with ratings higher than the voltages and currents, and fusing I t specifications within the ranges shown in the table below.
  • Page 403 Table 10.2 Selection Requirements for Input Fuses with Examples Selection Requirements Input Fuse (Examples) Inverter Model Fusing Voltage Number Voltage Current Fusing I Class Model Number Manufacturer Ratings CIMR-G7C sec) sec) 600 V 40P4 16 to 660 CR6L-20/UL FUJI 20 A...

  • Page 404: Emc Directive

    Install a noise filter that conforms to European Standards on the input side. (Refer to Table 10.3 EMC • Noise Filters). Use a shielded line or metal piping for wiring between the Inverter and Motor. Make the wiring as short as • possible.
  • Page 405 Remove the paint on the ground side. Inputs Inverter Filter Outputs L1L2L3 T1 Wiring length: 40 cm max. Metallic plate Wiring length: 20 m max. Remove the paint on the ground side. Fig 10.7 Installation Method for Filter and Inverter (CIMR-G7C2022 to 2110, 4022 to 4300)
  • Page 406 Conformance to CE Markings Table 10.3 EMC Noise Filters Inverter Model Noise Filter (Made by Schaffner) Volt- Number Model Number Rated Current (A) Weight (kg) Dimensions Class CIMR-G7C 20P4 FS 5972-10-07 141 x 330 x 46 20P7 21P5 FS 5972-18-07...
  • Page 407 4110 4132 Under development 4160 Under development 4185 Under development 4220 Under development 4300 Under development Table 10.4 DC Reactors for Suppressing Harmonics Inverter Model DC Reactor Voltage Class Number Model Number Manufacturer Ratings Code Number CIMR-G7C 20P4 200 V class...

  • Page 408: User Constants

    User Constants User Constants Factory settings are given in the following table. These setting are for a 200 V Class Inverter of 0.4 kW set to factory set control method (open-loop vector control). Table 10.5 User Constants Fac- Fac- Set-...
  • Page 409 Frequency reference 13 0.00 E2-08 Motor iron saturation coefficient 2 0.75 d1-14 Frequency reference 14 0.00 E2-09 Motor mechanical loss Motor iron loss for torque compen- d1-15 Frequency reference 15 0.00 E2-10 sation d1-16 Frequency reference 16 0.00 E2-11 Motor rated output 0.40...
  • Page 410 Fac- Set- Set- Name tory Name tory ting ting Setting Setting Motor 2 mid. output frequency 1 Analog output signal level for E3-05 F4-08 (FB) channel 2 Motor 2 mid. output frequency E3-06 F5-01 Channel 1 output selection 11.0 voltage 1 (VC) Motor 2 min.
  • Page 411 0.50 L4-02 Speed agreement detection width Speed agreement detection level H4-06 Bias (terminal AM) L4-03 (+/-) Analog output 1 signal level selec- Speed agreement detection width H4-07 L4-04 tion (+/-) Analog output 2 signal level selec- Operation when frequency refer-...
  • Page 412 * 11.If the set value is 0, acceleration will be to the speeds for the acceleration times (C1-01 to C1-08) * 12.The setting range is 10% to 200% of the Inverter rated output. (The value given is for a 200 V Class Inverter for 0.4 kW.)
  • Page 414 7-5, 7-10 communications on standby, 7-12 external fault function, 6-75 communications option card A/D converter error, 7-8 communications option card DPRAM error, 7-8 communications option card model code error, 7-8 communications option card self diagnostic error, 7-8...
  • Page 415 OL, 7-4 hunting-prevention function, 6-36 noise filter, 2-15 no-load operation, 4-14 number of gear teeth between PG and motor, 6-145 incorrect inverter capacity setting, 7-13 number of PG pulses, 6-144 inductive noise, 2-17 inrush prevention circuit fault, 7-3...
  • Page 416 Index overtorque 2, 7-10 switching motors when the power supply is ON, 6-133 overtorque detected 1, 7-4 overtorque detected 2, 7-4 terminal block, 2-5 thermal overload relay, 2-17 password, 4-15, 6-140 tightening torque, 2-36 periodic inspection, 8-2 timer function, 6-93...

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