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YASKAWA Varispeed f7 - User Manual

YASKAWA Varispeed f7
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YASKAWA
Varispeed F7
INSTRUCTION MANUAL
YA S K A WA
MANUAL NO. TOE-S616-55.1C
GENERAL PURPOSE INVERTER (CURRENT VECTOR CONTROL)
MODEL
:
CIMR-F7A
Upon receipt of the product and prior to initial operation, read these instructions
thoroughly, and retain for future reference.
200V CLASS 0.4 to 110kW (1.2 to 160kVA)
400V CLASS 0.4 to 300kW (1.4 to 510kVA)

Table of Contents

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Questions and Answers

  • G
    Gina LopezSep 23, 2025
    Why is a signal being input to the frequency reference terminal A2 or A3 on YASKAWA Inverter?
    • J
      Jeffrey JacksonSep 23, 2025
      When 0 (frequency reference) is set for constant H3-09 (Multi-function Analog Input Terminal A2 Function Selection) or H3-05 (Multi-function Analog Input Terminal A3 Function Selection) on YASKAWA Inverter, a frequency corresponding to the terminal A2 or A3 input voltage (current) is added to the frequency reference. Check to be sure that the set value and analog input value are suitable.
  • L
    lindseyreedAug 25, 2025
    How to fix OV DC Bus Overvolt on YASKAWA Inverter?
    • T
      Tonya NguyenAug 25, 2025
      If your YASKAWA Inverter shows an OV DC Bus Overvolt error, it could be due to: the deceleration time being set too short, causing excessive regenerative energy from the motor, or the power supply voltage being too high. To fix this, increase the deceleration time (C1-02/04/06/08) or connect a braking option. Also, check the power supply and decrease the voltage to meet the inverter’s specifications.
  • T
    Tiffany SantiagoAug 25, 2025
    How to troubleshoot GF Ground Fault on YASKAWA Inverter?
    • M
      Michael MooreAug 26, 2025
      If your YASKAWA Inverter is showing a GF Ground Fault error, it might be because one of the Inverter outputs is shorted to ground, or a DCCT is defective. To troubleshoot this, remove the motor and run the Inverter without the motor. Check the motor for a phase to ground short. Also, check the output current with a clampmeter to verify the DCCT reading.
  • P
    pbishopAug 26, 2025
    What to do if YASKAWA Varispeed f7 displays PUF DC Bus Fuse Open?
    • C
      Cindy WilliamsAug 27, 2025
      If the YASKAWA Inverter displays a PUF DC Bus Fuse Open error, it could be due to shorted output transistors or terminals. Check the motor and the motor cables for short circuits or insulation failures (phase-to-phase). Replace the inverter after correcting the fault.
  • B
    Brian SteinAug 27, 2025
    How to fix overcurrent in YASKAWA Varispeed f7?
    • K
      Kelly HillAug 27, 2025
      If the YASKAWA Inverter output current exceeds the overcurrent detection level (200% of rated current), it may be due to a short-circuit or ground fault at the Inverter output (caused by motor burn damage, worn insulation, or a damaged cable), an excessively large load, too short acceleration/deceleration time, a special-purpose motor or one with excessive capacity, or switching a magnetic switch at the Inverter output. After addressing the cause, reset the fault.
  • J
    Julie WellsSep 14, 2025
    What causes overspeed on YASKAWA Varispeed f7?
    • B
      Brian ShepardSep 14, 2025
      If the YASKAWA Inverter detects an overspeed, where the speed has been greater than the setting in F1-08 for longer than the setting in F1-09, it could be due to overshooting/undershooting, in which case you should adjust the gain again. Alternatively, the reference speed may be too high, so check the reference circuit and reference gain. Lastly, the settings in F1-08 and F1-09 might not be appropriate, so check them.
  • N
    ngeorgeSep 12, 2025
    How to fix overtorque detected 2 on YASKAWA Inverter?
    • J
      Jack CaldwellSep 12, 2025
      If the YASKAWA Inverter detects an overtorque (Detected 2), where there has been a current greater than the setting in L6-05 for longer than the setting in L6-06, make sure that the current setting in L6-05 and time setting in L6-06 are appropriate. Check the mechanical system and correct the cause of the overtorque.
  • A
    agonzalezSep 13, 2025
    What to do if YASKAWA Varispeed f7 Inverter shows High-slip Braking OL?
    • O
      ojohnsonSep 13, 2025
      If the YASKAWA Inverter shows High-slip Braking OL, and the output frequency did not change for longer than the time set in N3-04, make sure the load is an inertial load. Set the system so that the deceleration time that does not produce OV is the value of N3-04 or less.
  • M
    Morgan WebbSep 5, 2025
    What to do for control power fault in YASKAWA Varispeed f7 Inverter?
    • C
      Christopher JohnsonSep 5, 2025
      If a YASKAWA Inverter detects a control power fault, where the control power supply voltage has dropped, first fix the wiring. If this doesn't solve the issue, try turning the power supply off and on. If the fault persists, replace the Inverter.
  • C
    Christina ReynoldsSep 2, 2025
    What causes main circuit undervoltage in YASKAWA Inverter?
    • S
      Sandra MoralesSep 2, 2025
      If the YASKAWA Inverter's main circuit DC voltage is below the Undervoltage Detection Level, it could be due to an open-phase with the input power supply, a momentary power loss, loose wiring terminals for the input power supply, excessive voltage fluctuations in the input power supply, or a fault in the surge prevention circuit. Reset the fault after correcting its cause.

Summary

Safety Information

Safety Precautions

Details on precautions to avoid injury or damage during installation, wiring, and operation.

General Precautions

General guidance on handling the manual, product, and potential changes.

Handling Inverters

Varispeed F7 Introduction

Overview of Varispeed F7 applications and available models.

Confirmations upon Delivery

Checklist for verifying the inverter and its components upon receipt.

Component Names

Identification of external parts and components of the inverter.

Exterior and Mounting Dimensions

Diagrams and dimensions for open chassis and enclosed wall-mounted inverter types.

Installation Orientation and Space

Guidelines for inverter installation orientation and required surrounding space.

Removing and Attaching the Terminal Cover

Procedure for removing and attaching the terminal cover for wiring access.

Removing;Attaching the Digital Operator and Front Cover

Instructions for safely removing and attaching the digital operator and front cover.

Removing and Attaching the Protection Cover

Procedure for removing and attaching top and bottom protection covers.

Wiring

Connection Diagram

Diagram illustrating the inverter's connection to main circuits and peripheral devices.

Wiring Main Circuit Terminals

Details on applicable wire sizes, connectors, and terminal functions for main circuits.

Wiring Control Circuit Terminals

Information on control circuit terminals, wire sizes, and wiring precautions.

Installing and Wiring Option Boards

Guidance on installing and wiring various option boards for the inverter.

Digital Operator and Modes

Digital Operator

Description of the digital operator's displays, keys, and functions.

Modes

Overview of inverter modes (Drive, Quick Programming, Advanced Programming, Verify, Autotuning).

Autotuning Mode

Procedure for automatic motor constant setting for vector control.

Trial Operation

Trial Operation Procedure

Flowchart and steps for performing trial operation of the inverter.

Basic Settings

Essential user constants that must be set for inverter trial operation.

Adjustment Suggestions

Guidance on adjusting constants to resolve issues like hunting or vibration.

User Constants

User Constant Descriptions

Explanation of the structure and elements of user constant tables.

Digital Operation Display Functions and Levels

Overview of the digital operator's display hierarchy and functions.

User Constants Settable in Quick Programming Mode

List of minimum user constants for inverter operation in quick programming mode.

A: Setup Settings

Settings related to language, access level, control method, and initialization.

E Constants

Constants related to V/f characteristics and motor setup.

L Constants

Constants related to motor protection, stall prevention, and hardware protection.

T Constants

Settings for motor autotuning parameters.

Constant Settings by Function

Application and Overload Selections

Selecting CT/VT, carrier frequency, and overload tolerance based on application.

Frequency Reference

Methods for inputting the frequency reference using various sources.

Run Command

Explanation of input methods for selecting the Run Command source.

Stopping Methods

Explanation of methods for stopping the inverter.

Acceleration and Deceleration Characteristics

Details on setting acceleration and deceleration times and S-curve characteristics.

Machine Protection

Functions for protecting the machine and inverter from various faults.

Continuing Operation

Functions for continuing operation or auto-restarting after errors.

Inverter Protection

Functions for protecting the inverter and braking resistor.

Input Terminal Functions

Explanation of input terminal functions and switching operations.

Output Terminal Functions

Explanation of output terminal functions and their settings.

Individual Functions

Explanation of individual functions used in special applications.

Digital Operator Functions

Explanation of digital operator functions and settings.

Options

Explanation of inverter option functions.

Using Inverters for Elevating Machines

Precautions for using the inverter with elevating machines like elevators and cranes.

Troubleshooting

Protective and Diagnostic Functions

Description of alarm functions including fault, alarm, operation, and autotuning errors.

Troubleshooting

Guidance on identifying and correcting inverter and motor operational issues.

Maintenance and Inspection

Maintenance and Inspection

Basic maintenance and inspection procedures for the inverter.

Periodic Maintenance of Parts

Guidelines for periodic replacement of inverter parts based on service life.

Cooling Fan Replacement Outline

Procedure for replacing cooling fans in various inverter models.

Specifications

Standard Inverter Specifications

Listing of standard inverter specifications based on capacity.

Specifications of Options and Peripheral Devices

Specifications for available inverter options and peripheral devices.

Appendix

Varispeed F7 Control Methods

Overview of the four control methods and their features.

Inverter Application Precautions

Precautions for selecting, installing, setting, and handling inverters.

Motor Application Precautions

Precautions to be observed when using the inverter with various motor types.

Conformance to UL Standard

Instructions for installation to comply with UL standards.

Conformance to CE Markings

Points regarding conformance to safety and environmental standards in Europe.

Wiring Examples

Wiring examples for connecting braking units and peripheral devices.

YASKAWA Varispeed f7 Specifications

General IconGeneral
SeriesVarispeed F7
Input Frequency50/60 Hz
Output Frequency0-400 Hz
Overload Capacity150% for 60 seconds
TypeAC Inverter
Output Voltage0 to Input Voltage
Control MethodV/f Control
Switching Frequency2 kHz to 15 kHz
Braking UnitBuilt-in or External
CommunicationRS-485
Protection FunctionsOvercurrent, Overvoltage
Protection ClassIP20
Cooling MethodFan Cooling
Ambient Temperature-10 to +50°C

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