Tag: MK-9000

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User Manual Guide for MK-9000 Series Inverters by Minzhong

I. Introduction to Operating Panel Functions and Key Settings

1.1 Introduction to Operating Panel Functions

The operating panel of the Minzhong MK-9000 series inverters is designed to be intuitive and user-friendly, facilitating easy operation and monitoring for users. The following is a detailed introduction to its various functions:

Function diagram of MK-9000 public frequency converter operation panel

Key Components of the Operating Panel:

  • LED Display: Displays various parameters and statuses such as operating frequency, output voltage, output current, etc.
  • Function Buttons:
    • PRG: Enters the parameter setting menu.
    • ENTER: Confirms settings or enters the next menu level.
    • UP/DOWN: Adjusts parameter values or selects menu items.
    • SHIFT: Toggles between different display modes or selects different parameters to adjust.
    • RUN: Starts the inverter.
    • STOP/RES: Stops the inverter or resets fault alarms.
    • MF.K: Multi-function key that can be programmed for different functions such as switching command sources or enabling jogging mode.

1.2 Key Function Settings

1.2.1 Setting Instantaneous Power Failure Continuous Operation (Ride-through Function)

The ride-through function allows the inverter to maintain continuous operation during short-term power outages. To configure this function:

  1. Enter the parameter setting menu by pressing the PRG button.
  2. Use the UP/DOWN buttons to navigate to parameter F1-30 (Instantaneous Power Failure Ride-through Mode).
  3. Adjust the parameter value using the UP/DOWN buttons:
    • 0: Function disabled.
    • 1: Maintain constant bus voltage during power failure.
    • 2: Gradually decelerate and stop during power failure.
  4. Press ENTER to confirm the setting.

1.2.2 Setting Speed Tracking Restart

Speed tracking restart allows the inverter to smoothly restart a motor that is already rotating. To configure this function:

  1. In the parameter setting menu, navigate to F4-00 (Start Mode).
  2. Adjust the parameter value:
    • 0: Direct start.
    • 1: Speed tracking restart.
  3. Press ENTER to confirm the setting.
  4. Optionally, adjust related parameters such as F4-01 (Start Frequency) and F4-04 (Start Frequency Hold Time) to fine-tune the start behavior.

1.2.3 Setting Slip Compensation

Slip compensation improves the speed stability of the motor under load variations. To enable and configure slip compensation:

  1. Navigate to F1-13 (Slip Compensation Gain) in the parameter setting menu.
  2. Adjust the parameter value between 0% and 200% to set the compensation level.
  3. Press ENTER to confirm.
  4. Ensure that the motor’s rated speed (F1-20), rated current (F1-02), and other relevant parameters are correctly set for optimal performance.
MK-9000 public frequency converter labeled wiring diagram

1.2.4 Setting User Password and Restoring Factory Defaults

Setting User Password

To protect your inverter settings from unauthorized access, you can set a user password:

  1. Navigate to FP-00 (User Password) in the parameter setting menu.
  2. Enter the desired password using the UP/DOWN buttons.
  3. Press ENTER to confirm.

Note: After setting a password, you will be prompted to enter it whenever you attempt to modify parameters.

Restoring Factory Defaults

To restore the inverter’s parameters to their factory default settings:

  1. Navigate to FP-01 (Parameter Initialization) in the parameter setting menu.
  2. Adjust the parameter value:
    • 1: Restore factory defaults (except for motor parameters, running time, fault records, and user password).
    • 2: Clear running time and fault records.
    • 3: Reset the power-on timer.
  3. Press ENTER to confirm and apply the changes.

By following these steps, you can effectively utilize the advanced features of the Minzhong MK-9000 series inverters to optimize their performance and reliability in various applications.