Category: Other Drives

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Huayuan Inverter User Manual Usage Guide and ERR02 Fault Solution

I. Introduction to the Function of Huayuan Inverter G1 Series Operating Panel (Keyboard)

Function diagram of Huayuan inverter keyboard

Operating Panel Functionality

The Huayuan Inverter G1 Series operating panel integrates multiple functions to facilitate parameter setting, status monitoring, and fault diagnosis. The panel primarily consists of a 5-digit 8-segment LED display, 4 indicator lights, 8 buttons, and a rotary potentiometer.

  • LED Display: Shows output frequency, current, various parameter settings, and abnormal statuses.
  • Indicator Lights: Indicate the current operating mode (e.g., Hz, A, V).
  • Button Functions:
    • Rotary Potentiometer: Used to adjust numerical settings; clockwise rotation increases the value, while counterclockwise rotation decreases it.
    • Multifunction Button: Can be set to invalid, jog, or forward/reverse functions.
    • Program Button: Enters or exits the parameter menu.
    • Confirm Button: Enters the parameter menu and confirms current modifications.
    • Shift Button: Switches between running status monitoring data and shifts parameters during modification.
    • Run Button: Controls the start and stop of the inverter.
    • Stop/Reset Button: Stops the inverter or resets faults.
    • Up/Down Buttons: Increases or decreases function codes or values.
Huayuan Inverter G1 Series Wiring Diagram

Parameter Upload and Download

  • Parameter Upload: Copies the internal parameters of the inverter to the keyboard memory. Set function parameter P07.02=H.#1, press the “‖” button to start the upload, and “CoPy” will be displayed upon completion.
  • Parameter Download: Writes the parameters stored in the keyboard to the inverter. Set function parameter P07.02 to H.12 or H.13, press the “‖” button to start the download, and “LoAd” will be displayed upon completion.

Setting Open-Loop Vector Control (SVC) and Closed-Loop Vector Control (FVC) Modes

  • Open-Loop Vector Control (SVC):
    1. Set P00.00=1.
    2. Set motor parameters (P02.01~P02.05) according to the motor nameplate.
    3. Perform motor parameter tuning (P00.25=1 for static tuning, P00.25=2 for dynamic tuning).
  • Closed-Loop Vector Control (FVC):
    1. Set P00.00=2.
    2. Set motor parameters (P02.01~P02.05) according to the motor nameplate.
    3. Set encoder-related parameters (e.g., P20.00 sets the encoder line count, P20.02 enables the PG card encoder function).
    4. Perform motor parameter tuning (P00.25=1 for static tuning, P00.25=2 for dynamic tuning).

Initializing Parameters

  • By setting function parameter P00.26, you can choose to restore factory default parameters (excluding or including motor parameters).

II. External Terminal Control

Achieving Forward/Reverse Rotation and Potentiometer Speed Adjustment

Terminal Connections

  • Forward/Reverse Control:
    • For forward rotation, connect the DI1 terminal to the common terminal (COM).
    • For reverse rotation, connect the DI2 terminal to the common terminal (COM).
  • Potentiometer Speed Adjustment:
    • Connect the output end of the external potentiometer to AI1 or AI2, and the other end to the common terminal (COM).

Parameter Settings

  • Forward/Reverse Parameters:
    • Set P05.00 (DI1 function) = 1 (forward rotation) or 2 (reverse rotation).
    • Ensure P00.01 (command source selection) = 0 (keyboard control) or change it to 1 (terminal control) as needed.
  • Potentiometer Speed Adjustment Parameters:
    • Set P00.02 (main frequency source X selection) = 1 (AI1) or select other analog inputs as needed.
    • Ensure P05.59 (AI voltage or current selection) is set correctly (e.g., 00 indicates AI1 is a voltage input).
err02 fault

III. ERR02 Fault Solution

Meaning of ERR02 Fault

ERR02 indicates an “acceleration overcurrent fault,” meaning an overcurrent is detected during inverter acceleration.

Fault Causes and Solutions

  1. Grounding or Short Circuit in Inverter Output Circuit:
    • Check and eliminate grounding or short circuits in peripheral wiring.
  2. Vector Control Mode Without Parameter Tuning:
    • Ensure motor parameter tuning has been correctly performed (SVC or FVC mode).
  3. Too Short Acceleration Time:
    • Increase the acceleration time (P00.17 or P00.18).
  4. Inappropriate Manual Torque Boost or V/F Curve:
    • Adjust the manual torque boost (P04.01) or select an appropriate V/F curve (P04.00).
  5. Low Voltage:
    • Adjust the voltage to the normal range.
  6. Starting a Rotating Motor:
    • Choose speed tracking start or wait for the motor to stop before starting.
  7. Sudden Load Increase During Acceleration:
    • Eliminate sudden load increases or reassess the load condition.
  8. Undersized Inverter Selection:
    • Select an inverter with a higher power rating.

Repairing the Inverter

If the above methods cannot resolve the ERR02 fault, further inspection and repair of the inverter may be necessary:

  1. Check the Drive Board and Main Control Board:
    • Confirm that the drive board and main control board are functioning normally, and replace faulty components if necessary.
  2. Check the Hall Sensor:
    • Confirm that the Hall sensor is operating correctly, and replace it if damaged.
  3. Contact the Manufacturer or Professional Repair Service:
    • If the problem persists, it is recommended to contact the inverter manufacturer or a professional repair service for further inspection and repair.

Conclusion

The Huayuan Inverter G1 Series user manual provides a detailed operation guide and fault solution. By correctly setting parameters and using external terminal control, various functions of the inverter can be realized. For the ERR02 fault, the inverter can be restored to normal operation by troubleshooting and solving the problem step by step. When necessary, contacting the manufacturer or a professional repair service is crucial to ensuring reliable operation of the equipment.

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BEST Inverter FC300 User Manual Usage Guide and Distinction between HOC and OC Faults

I. Introduction to BEST Inverter FC300 Panel Functions and Parameter Settings

1.1 Introduction to Panel Functions

The BEST Inverter FC300’s operation panel is equipped with multiple function keys, including ESC, ENT, MF, >>, ↑, ↓, STOP/RESET, each with specific functions:

  • ESC: Exits the current setting or cancels the current operation.
  • ENT: Confirms the current setting or proceeds to the next operation.
  • MF: Multifunction key with different functions depending on the context.
  • >>: Switches between menus or parameters.
  • ↑ and ↓: Adjust parameter values or scroll through menus.
  • STOP/RESET: Stops the inverter operation or resets the fault status.
OC FAULT

1.2 Parameter Initialization and Upload/Download

The BEST Inverter FC300 supports parameter initialization, upload, and download, primarily through parameter P087.

  • Parameter Initialization: Set P087 to 1 and press ENT to confirm, restoring the inverter to factory settings.
  • Parameter Upload: Set P087 to 4, ensure correct connection between the inverter and computer, and upload current parameter settings via dedicated software.
  • Parameter Download: Set P087 to 5, ensure correct connection, and download parameters to the inverter via software.

1.3 Setting and Removing Passwords

To protect the inverter settings from unauthorized changes, the BAST FC300 supports password protection.

  • Setting a Password: Set a new password in P086 and choose 2 in P087 to memorize the password.
  • Removing a Password: Enter the current password in P086 and choose 3 in P087 to clear the password.

II. Terminal Start/Stop, Potentiometer Speed Adjustment, and Forward/Reverse Control

2.1 Terminal Start/Stop and Potentiometer Speed Adjustment

To achieve terminal-based start/stop of the inverter and potentiometer-based speed adjustment, correct wiring and parameter settings are required.

  • Wiring: Connect the start and stop signals to the X1 and X3 terminals of the inverter, respectively (or other designated terminals, as per the manual). Connect the potentiometer to the AVI or ACI terminals for analog speed adjustment.
  • Parameter Settings:
    • Set P064 to 1 to select external terminal control.
    • Configure the function of the AVI or ACI terminals, e.g., set P091’s X1 function to “Forward Start” and X3 to “Stop”.
    • Adjust parameters like P053 as needed to set the range and mode of analog speed adjustment.
HOC FAULT

2.2 Terminal-Based Forward/Reverse Control

To achieve terminal-based forward/reverse control of the inverter, correct wiring and parameter settings are also necessary.

  • Wiring: Connect the forward and reverse signals to the X1 and X2 terminals of the inverter, respectively (or other designated terminals).
  • Parameter Settings:
    • Ensure P064 is set to support external terminal control.
    • Configure the functions of the X1 and X2 terminals, e.g., set P091’s X1 function to “Forward” and X2 to “Reverse”.
    • Adjust parameters like P066 as needed to ensure motor reversal is allowed.

III. Distinction between HOC and OC Faults and Solutions

3.1 Distinction between HOC and OC Faults

  • HOC Fault: Typically refers to an overcurrent fault caused by damage to the inverter’s inverter module. This fault is severe and may be accompanied by damage to internal components of the inverter.
  • OC Fault: Generally refers to an overcurrent fault on the output side, which may be caused by motor stalls, excessive loads, short acceleration times, etc.

3.2 Fault Solutions

  • HOC Fault Solution:
    1. Check the Inverter Module: Confirm if the inverter module is damaged and replace it if necessary.
    2. Check the Drive Circuit: Inspect the drive circuit for normal function and troubleshoot drive faults.
    3. Contact the Manufacturer: If the issue is complex or unresolved, contact BAST for repair or replacement.
  • OC Fault Solution:
    1. Check the Motor and Load: Confirm if the motor is stalled or if the load is excessive, and adjust the load or motor parameters as necessary.
    2. Adjust Acceleration Time: Increase the acceleration time to avoid instantaneous overcurrent during motor startup.
    3. Check Wiring: Verify the wiring between the motor and the inverter for correctness and eliminate any wiring errors that may cause faults.
    4. Reset the Inverter: Press the STOP/RESET button to reset the inverter and attempt to restart it.

IV. Conclusion

The BEST Inverter FC300, as a high-performance inverter, boasts a rich set of panel functions and flexible parameter settings, capable of meeting control demands in various complex operating conditions. Through correct wiring and parameter settings, functions such as terminal-based start/stop, potentiometer speed adjustment, and forward/reverse control can be achieved. Meanwhile, for common HOC and OC faults, users should be able to quickly identify the fault phenomenon and take corresponding measures for resolution to ensure the normal operation of the inverter. During use, users must strictly adhere to the safety precautions and operating procedures outlined in the manual to ensure the safety of personnel and equipment.

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Guide to the LCGK-ZTV Inverter LC630 Series from Lianchuang High-Tech & Zhongtaiwei and Troubleshooting for Err23

I. Introduction to Panel Functions and Initialization Settings of the LCGK-ZTV Inverter LC630 Series

1. Panel Function Introduction

The LC630 series inverters from LCGK-ZTV are equipped with an intuitive operation panel, which mainly includes a display screen, function keys, and status indicator lights. The display screen shows current working status, parameter settings, and other information; the function keys include “MENU” (menu), “ENTER” (confirm), “UP/DOWN” (selection), etc., used for parameter setting and navigation; the status indicator lights indicate power, operation, faults, and other statuses.

LC630 inverter

2. Initialization and Password Setting

Initializing the inverter typically involves restoring default parameter settings. The specific steps are as follows:

  • Press the “MENU” key to enter the main menu.
  • Use the “UP/DOWN” keys to select the “Initialization” option and press “ENTER” to confirm.
  • The system will prompt whether to confirm initialization; press “ENTER” again to execute.

The LCGK-ZTV Inverter LC630 series supports password protection to prevent unauthorized modifications. The method for setting a password is as follows:

  • After entering the main menu, select the “Parameter Protection” option.
  • Use the “UP/DOWN” keys to select “Password Setting,” and press “ENTER” to enter.
  • Input the desired password (typically a 4-digit number) and press “ENTER” to confirm.
  • Input the password again for confirmation and press “ENTER” to save.

The method for clearing the password is similar. Simply select “Clear Password” after entering the current password in the “Password Setting” option and press “ENTER” to confirm.

3. Setting Panel Start and Panel Potentiometer Speed Adjustment

To achieve panel start and panel potentiometer speed adjustment, the following parameters need to be set:

  • Pr033: Start source selection. Set to 0 for panel start; set to other values for external signal start.
  • Pr034: Operating frequency source selection. Set to 0 for panel potentiometer speed adjustment; set to other values for external signal speed adjustment.
  • Pr052: Enable PID function (set according to specific situations when used for constant pressure water supply control).

II. Method for Achieving Constant Pressure Water Supply Control

1. Introduction to PID Function

The PID control is key to achieving constant pressure water supply control with the inverter. By monitoring changes in water supply pressure, the PID controller automatically adjusts the output frequency of the inverter to maintain a constant water supply pressure.

2. Parameter Setting

According to the instruction manual for the LCGK-ZTV Inverter LC630 series (especially pages 58, 59, and 60), the following parameters need to be set to achieve constant pressure water supply control:

  • Pr052: Enable PID function. Set to a non-zero value to enable PID control.
  • Pr100: PID target value setting. Set the target value according to the required water supply pressure.
  • Pr101: PID feedback signal source selection. Typically, select the output signal from the pressure sensor as the feedback signal.
  • Pr102, Pr103, Pr104: Set the P (proportional), I (integral), and D (derivative) parameters of PID control, respectively. These parameters need to be adjusted according to the actual system response to achieve the best control effect.
  • Pr105: PID output limiting. Set the maximum and minimum values of the PID output signal to prevent the inverter output frequency from exceeding the allowed range.

3. Notes

  • When setting PID parameters, ensure system stability and quick response.
  • Regularly check the accuracy of the pressure sensor and feedback signal to ensure the accuracy of PID control.
  • Adjust PID parameters according to actual water supply demands and pump performance to achieve optimal energy-saving effects.
err23 fault

III. Troubleshooting for Err23

1. Fault Mechanism Analysis

The Err23 fault code typically indicates a short circuit between the inverter output and ground. This may be caused by insulation failure of the motor or motor cables. When a short circuit occurs between the inverter output and ground, an excessively large current is generated, triggering the protection mechanism and displaying the Err23 fault code.

2. Fault Handling Method

When handling the Err23 fault, first check the insulation of the cables and motor:

  • Disconnect the inverter’s power supply to ensure safe operation.
  • Use an insulation resistance tester to test the insulation of the cables and motor. Check the insulation resistance between each phase of the cable and ground, as well as the insulation resistance of the motor windings, to ensure they meet the requirements. If the insulation resistance value is too low, it indicates insulation failure.
  • For cables, replace them with new ones that match the specifications of the original cables. During replacement, ensure the integrity and insulation performance of the cables to avoid new damage during wiring.
  • For the motor, if the insulation failure is severe, the entire motor may need to be replaced. When replacing the motor, ensure that the specifications and performance of the new motor match those of the original motor to meet the operational requirements of the inverter.
  • If the Err23 fault code persists after replacing the cables or motor, it may be necessary to consider replacing the entire unit. This typically indicates that there may be other faults within the inverter causing the ground short circuit issue.
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Shenzhen SHZHD Inverter V680 Series Operation Guide and E10 Fault Handling

Shenzhen SHZHD Inverter V680 Series Operation Guide and E10 Fault Handling

I. Operation Panel Function Introduction, Parameter Factory Reset, and Password Management

SHZHD INVERTER V680

1. Operation Panel Function Introduction

The operation panel of the Shenzhen SHZHD Inverter V680 series provides an intuitive operation interface, allowing users to set various parameters and operate the inverter through buttons and displays on the panel. The main functions of the panel include:

  • Display Area: Displays current set frequency, output frequency, current, voltage, and other parameters.
  • Function Keys: Such as MENU, ENTER, △, ▽, used for entering menus, confirming settings, and adjusting parameters.
  • Run Key: Starts and stops the inverter.
  • Fault Indicator: When the inverter malfunctions, the corresponding indicator light will illuminate, prompting the user to check the fault.

2. Parameter Factory Reset

To restore the inverter’s parameters to their factory defaults, follow these steps:

  1. Enter the menu interface and find the “Parameter Initialization” option.
  2. Select “Restore Factory Parameters” and confirm execution. At this point, all parameters except motor parameters will be restored to their factory settings.

3. Adding and Removing Passwords

To protect parameters from being modified casually, users can set passwords for the inverter.

  • Adding a Password: Enter the “User Password” setting, input the desired password, and confirm to save.
  • Removing a Password: Re-enter the “User Password” setting and set the password to 0 to remove password protection.

II. Torque Control and Vector Control

1. Torque Control

Torque control is a special control mode that allows users to directly set the output torque of the inverter instead of indirectly controlling the torque by setting the frequency. This control mode is very useful in situations where precise control of the load torque is required.

  • Setting Method: First, select “Torque Control” in the control mode. Then, choose the torque setting source through the corresponding parameter (such as A0-01), which can be the keyboard, analog input, communication, etc. Finally, set the desired torque value through parameters such as A0-03.

2. Vector Control

Vector control is a high-performance control method that achieves high-precision speed and torque control by precisely controlling the motor’s current and magnetic flux.

  • Optimizing Parameters: To obtain better vector control performance, users need to adjust related parameters based on the actual load conditions, such as the speed loop proportional gain (P2-00, P2-03) and speed loop integral time (P2-01, P2-04). The adjustment of these parameters requires certain professional knowledge and experience.

III. Terminal Start/Stop and Potentiometer Speed Regulation

1. Terminal Start/Stop

Controlling the start and stop of the inverter through external terminals is a commonly used control method. Users need to set the control mode of the inverter to “Terminal Control” and wire it correctly.

  • Wiring Terminals: Typically include the forward start terminal (e.g., DI1), reverse start terminal (e.g., DI2), and stop terminal (e.g., DI3).
  • Parameter Settings: Select “Terminal Command Channel” in P0-02 and set the corresponding terminal functions.

2. Potentiometer Speed Regulation

Potentiometer speed regulation is a simple speed regulation method where users can change the set frequency of the inverter by rotating the potentiometer, thereby achieving speed regulation.

  • Wiring Terminals: Connect the output end of the potentiometer to the analog input terminal of the inverter (e.g., AI1).
  • Parameter Settings: Select “Analog AI1 Setting” as the frequency source in P0-03.
E10 FAULT

IV. E10 Fault Handling

1. On-site Handling

The E10 fault typically indicates an overload of the inverter. When an overload fault occurs, users should first check if the load is too heavy or if the motor is stalled. If the load is normal, try increasing the inverter’s acceleration and deceleration times to reduce the impact on the motor.

2. Maintenance Handling

If on-site handling fails to resolve the issue, it may be necessary to disassemble the inverter for maintenance. During the maintenance process, focus on the following aspects:

  • Motor and Load: Confirm whether the motor and load are normal and free from mechanical faults or obstructions.
  • Inverter Parameters: Check whether the inverter’s overload protection parameters (such as P9-00, P9-01) are set reasonably.
  • Hardware Faults: If the parameter settings are normal and the load is without abnormality, it may be a hardware fault within the inverter, such as damaged power devices or poor heat dissipation. At this point, professional maintenance personnel should be sought for assistance.

Conclusion

The Shenzhen SHZHD Inverter V680 series is a powerful and flexible inverter product. Through this guide, users can better understand the inverter’s operation panel functions, parameter setting methods, the application of torque control and vector control, and common fault handling methods. In practical applications, users should configure parameters and control modes based on specific needs and load conditions to ensure stable operation and high performance of the inverter.

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SHZK INVERTER ZK880 Series User Guide and ERR13 Fault Handling Method

SHZK INVERTER ZK880 Series User Guide

I. Operation Panel Function Introduction

The SHZK INVERTER ZK880 series provides an intuitive operation panel, facilitating easy setup and control of the inverter.

II. Setting Key Parameters

1. Acceleration and Deceleration Time

To set the acceleration and deceleration time:

  1. Press the PRG key to enter the programming mode.
  2. Use the ▲ and ▼ keys to navigate to the relevant parameters (e.g., F0-17 for acceleration time, F0-18 for deceleration time).
  3. Use the ▲ and ▼ keys to adjust the values.
  4. Press the ENT key to confirm the settings.
SHZK ZK880 INVERTER

2. Starting Frequency

To set the starting frequency:

  1. Enter the programming mode by pressing the PRG key.
  2. Navigate to the starting frequency parameter (F6-03).
  3. Adjust the value using the ▲ and ▼ keys.
  4. Confirm the setting with the ENT key.

3. Upper and Maximum Frequency

To set the upper and maximum frequency:

  1. Enter the programming mode.
  2. Navigate to the maximum frequency parameter (F0-10).
  3. Adjust the value to the desired maximum frequency.
  4. For the upper frequency limit, navigate to F0-12 and set accordingly.
  5. Confirm each setting with the ENT key.

4. Minimum Frequency

To set the minimum frequency:

  1. Enter the programming mode.
  2. Navigate to the minimum frequency parameter (F0-14).
  3. Adjust the value to the desired minimum frequency.
  4. Confirm with the ENT key.

5. Current and Power

To monitor or limit the current and power:

  1. The current and power values can be monitored in real-time via the operation panel or through the monitoring parameters (U0-04 for output current, U0-05 for output power).
  2. For current limiting, navigate to the relevant protection parameters (e.g., F9-06 for over-current trip level).
  3. Adjust the values as needed and confirm with the ENT key.

6. Restoring Initialization Parameters

To restore the inverter to its factory settings:

  1. Power off the inverter.
  2. Hold down the STOP/RES key while powering on the inverter.
  3. Continue holding the key until the display shows “rE”, indicating that the parameters have been reset.
  4. Release the key and allow the inverter to restart.

III. Terminal Start and Direction Control

1. Terminal Start

To start the inverter via terminals:

  1. Ensure the command source is set to terminal control (F0-02 = 1).
  2. Connect the appropriate terminal (e.g., FWD for forward rotation) to a closed contact or power source.
  3. The inverter will start running according to the terminal configuration.

2. Direction Control

To control the rotation direction:

  1. Ensure the necessary terminals (e.g., FWD for forward, REV for reverse) are properly connected.
  2. Activate the corresponding terminal to start the inverter in the desired direction.
  3. For reversing, deactivate the forward terminal and activate the reverse terminal.
ERR13 FAULT

ERR13 Fault Handling Method

Common Causes of ERR13 Fault

  • Overcurrent fault due to excessive load or short circuit.
  • Motor parameters not properly set or identified.
  • Insufficient cooling of the inverter or motor.

Handling Steps

  1. Check the Load: Ensure the load is within the inverter’s rated capacity and there are no short circuits or ground faults.
  2. Review Motor Parameters: Verify that the motor parameters (e.g., rated current, power) are correctly entered into the inverter.
  3. Check Cooling: Ensure adequate ventilation and cooling of both the inverter and the motor.
  4. Reset the Inverter: If the fault persists, try resetting the inverter by power cycling it or using the STOP/RES key.
  5. Consult the Manual: Refer to the user manual for more detailed troubleshooting steps and parameter adjustments.

By following these guidelines, users can effectively operate and troubleshoot the SHZK INVERTER ZK880 series, ensuring optimal performance and reliability.

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MIKOM Inverter MV Series User Guide and ER.03 Fault Cause Analysis and Solution

I. Introduction to MIKOM Inverter MV Series Operation Panel Functions

The MIKOM Inverter MV series features a comprehensive operation panel with LED display, indicators, multi-function MK key, programming keys, increment/decrement keys, stop/reset key, and run key.

Mikom inverter physical picture

1. LED Display Area

  • Displays current set frequency, output frequency, output voltage, output current, and other parameters.

2. Indicators

  • FWD: Forward/Reverse Indicator. Lit indicates reverse operation; off indicates forward operation or stop.
  • COMD: Command Channel Indicator. Lit indicates operation panel control; flashing indicates serial communication control; off indicates terminal control.
  • ALM: Fault Indicator. Lit indicates fault status; flashing indicates alarm status.
  • RUN: Run Status Indicator. Lit indicates running; off indicates stop.

3. Function Keys

  • MK Key: Multi-function key, whose function is defined by parameter P50.03.
  • Programming Key: Enters or exits the menu.
  • Increment/Decrement Keys: Increment or decrement data or function codes.
  • Stop/Reset Key: Stops operation during running and resets during fault alarm.
  • Run Key: Initiates operation in keyboard operation mode.

4. Restoring Factory Defaults

  • Set parameter P50.20 to 22, then press the run key to restore factory defaults.

5. Panel Start/Stop and Speed Adjustment Settings

  • Set P00.01 to 0 to select the operation panel control command channel.
  • Use the increment and decrement keys on the operation panel for speed adjustment.
Mikom inverter has an ER.03 fault

II. Terminal Start/Stop and Potentiometer Speed Adjustment Settings

1. Terminal Connections

  • Terminals to be connected include: run command terminals (e.g., FWD, REV), speed reference terminals (e.g., AI1, AI2), and common terminals (e.g., COM).

2. Parameter Settings

  • Set P00.01 to 1 to select the terminal run command channel.
  • Set P00.02 to the corresponding analog input channel (e.g., AI1 given).
  • Configure the functions of each terminal as needed in P10 group parameters.

3. Speed Adjustment Settings

  • Connect an external potentiometer to the speed reference terminal (e.g., AI1) and common terminal (e.g., COM) to adjust the speed by turning the potentiometer.

III. Fault Codes and ER.03 Fault Analysis

1. Fault Codes

The MIKOM Inverter MV series has comprehensive fault protection functions. Common fault codes include:

  • ER.01: Overcurrent Protection
  • ER.02: Overvoltage Protection
  • ER.03: Constant Speed Overcurrent
  • ER.04: Undervoltage Protection
  • ER.05: Overload Protection
  • ER.06: Overheat Protection
  • ER.07: Module Protection
  • ER.08: Phase Loss Protection
  • ER.09: External Reference Lost
  • ER.10: Excessive Speed Deviation

2. ER.03 Fault Analysis

ER.03 indicates a constant speed overcurrent fault, typically occurring when the inverter’s output current exceeds the rated current limit. This fault can be caused by:

  • Excessive motor load or mechanical blockage.
  • Incorrect motor parameter settings, leading to excessive inverter output current.
  • Inverter internal drive board fault, such as poor IGBT conduction or defective drive optocouplers.

3. Handling and Repair Methods

  • Check Load and Mechanical Parts: Ensure the motor load is normal and there is no mechanical blockage.
  • Check Motor Parameter Settings: Ensure motor parameters (e.g., rated power, rated current) are set correctly.
  • Check Drive Board: If the above two items are normal, the fault may be in the inverter’s internal drive board. Professional maintenance personnel are required for inspection and repair, replacing damaged IGBTs or drive optocouplers as necessary.

When handling ER.03 faults, always ensure power-off operation to avoid electrical shock hazards. Regular maintenance and inspection of the inverter are recommended to promptly identify and address potential faults, ensuring the normal operation of the inverter.

The MIKOM Inverter MV series is widely used in multiple industries due to its high performance and reliability. By correctly setting and operating panel functions, reasonably wiring and configuring parameters, and promptly and effectively handling faults and maintenance, the performance advantages of the inverter can be fully utilized, improving production efficiency and equipment reliability.

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HARS Inverter HS720 Series Operation Method and PID Control Implementation for a Single Pump

I. Operation Method of the HARS Inverter HS720 Series

The HARS Inverter HS720 Series is a high-performance current vector inverter with a wide range of applications. This article will provide a detailed introduction on how to set the inverter to start via the operation panel and use the panel potentiometer to set the frequency, enabling direct start/stop control via the operation panel and speed regulation through the panel potentiometer.

Function diagram of HARS INVERTER HS720 series operation panel

1.1 Setting Operation Panel Startup and Panel Potentiometer Frequency Setting

First, ensure that the inverter’s power supply is correctly connected, and all safety measures are in place. Next, follow these steps to configure the settings:

  1. Enter Programming Mode: Press the PRG key on the inverter’s operation panel to enter the programming menu.
  2. Set Run Command Selection: In the programming menu, find the F0.02 parameter and set it to 0. This selects the keyboard operation mode for run commands.
  3. Set Main Frequency Source A Selection: Continue to find the F0.03 parameter and set it to 1. This indicates that the keyboard potentiometer is selected as the frequency setting method.
  4. Save and Exit: After completing the settings, press the SET key to save the parameters and press the PRG key to exit programming mode.

Now, you can start and stop the inverter using the RUN and STOP/RESET keys on the operation panel, and adjust the output frequency by rotating the panel potentiometer to achieve speed regulation.

II. Restoring Factory Default Settings for the Inverter

During the use of the inverter, it may be necessary to restore the parameters to their factory default values for reconfiguration or troubleshooting. The HARS Inverter HS720 Series provides a function to restore factory default settings, with the following steps:

  1. Enter Programming Mode: Press the PRG key to enter the programming menu.
  2. Select Data Initialization: Find the F0.17 parameter and set it to 2. This selects restoring factory default settings (excluding motor parameters and F8 group parameters).
  3. Confirm and Wait: Press the SET key to confirm the selection, and the inverter will begin the process of restoring factory default settings. Please wait patiently until initialization is complete.
  4. Exit Programming Mode: After initialization is complete, the inverter will automatically exit programming mode and restore to factory default settings.
HARS INVERTER HS720 Series Basic Wiring Diagram

III. PID Control Implementation for a Single Pump

In a constant pressure water supply system, the PID function within the inverter can be used to achieve constant pressure control of the water pump motor. The PID (Proportional-Integral-Derivative) controller is a commonly used feedback control system that continuously adjusts the output signal to make the system output reach and maintain the set value.

3.1 Introduction to PID Principles

The PID controller adjusts the output signal by calculating the deviation between the set value and the actual feedback value, based on three components: proportional (P), integral (I), and derivative (D). Among them:

  • Proportional (P): Adjusts the output based on the proportion of the deviation. The larger the deviation, the greater the output adjustment.
  • Integral (I): Integrates the deviation to eliminate the system’s static error.
  • Derivative (D): Adjusts the output based on the rate of change of the deviation to predict future deviations and make adjustments in advance.

In a constant pressure water supply system, the derivative component is usually not required, so the derivative gain can be set to 0.

3.2 Wiring and Parameter Settings

To achieve constant pressure water supply control using the panel potentiometer as the PID setpoint and port AI1 as the PID feedback value, follow these wiring and parameter setting steps:

Wiring Steps:

  1. Setpoint Wiring: Connect the output terminal of the panel potentiometer to the AI1 terminal of the inverter (as the PID setpoint input).
  2. Feedback Wiring: Connect the output signal of the pressure sensor (typically 420mA or 010V) to the AI2 terminal of the inverter (as the PID feedback input).
  3. Ensure Grounding: Ensure that all signal wires are properly grounded to avoid interference.

Parameter Setting Steps:

  1. Enter Programming Mode: Press the PRG key to enter the programming menu.
  2. Enable PID Function: Find the FA.00 parameter and set it to 1 to enable reverse-acting PID control.
  3. Set PID Setpoint Selection: Set the FA.01 parameter to 1, indicating that the keyboard potentiometer is selected as the PID setpoint.
  4. Set PID Feedback Selection: Set the FA.02 parameter to 2, indicating that AI1 is selected as the PID feedback input (Note: This differs slightly from the wiring as AI1 is already used as the setpoint input. In actual operation, ensure that the feedback value is input to the correct terminal, such as AI2).
  5. Adjust PID Parameters: Adjust PID parameters such as FA.09 (proportional gain), FA.10 (integral time), and FA.11 (derivative time) according to system requirements. In a constant pressure water supply system, the derivative time is typically set to 0.
  6. Save and Exit: After completing the settings, press the SET key to save the parameters and press the PRG key to exit programming mode.

Now, the inverter will automatically adjust the speed of the water pump motor based on the set PID parameters and the feedback signal from the pressure sensor to achieve constant pressure water supply control.

IV. Conclusion

The HARS Inverter HS720 Series is a powerful and easy-to-operate high-performance inverter. Through this article, you have learned how to set it to start via the operation panel and use the panel potentiometer to set the frequency, how to restore factory default settings, and how to use the PID function to achieve constant pressure water supply control for a single pump. In actual applications, you can further adjust and optimize the inverter’s parameter settings according to specific needs to achieve the best control effect.

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Usage Instructions and Troubleshooting of COF Fault in Powtran PI8600 Series Inverter

I. Usage Instructions for Powtran PI8600 Series Inverter

1. Panel Operation Setup

The panel operation of the Powtran PI8600 series inverters is straightforward. Here’s how to set up panel start, panel speed regulation, restore factory settings, set passwords, and remove passwords:

Panel Start and Speed Regulation:

  1. Entering Parameter Setting Mode:
    • Press the PRG button to enter the parameter group query state.
    • Use the potentiometer to switch to the F00-63 basic function group.
    • Press the PRG button again to enter the parameter query state within the F00-63 group.
    • Switch to F02 (Frequency Main Setting Mode) using the potentiometer.
    • Press the PRG button to enter the parameter modification state for F02.
    • Set F02 to 4 (Keyboard Potentiometer Given) using the potentiometer and SET button.
  2. Adjusting Speed:
    • Rotate the potentiometer on the panel to adjust the set frequency in real-time, which will also adjust the motor speed.

Restoring Factory Settings:

  1. In the monitoring state, press the PRG button to enter the parameter group query state.
  2. Use the potentiometer to switch to the y00-23 system function group.
  3. Press the PRG button to enter the parameter query state within this group.
  4. Switch to y00 (Reset System Parameters) using the potentiometer.
  5. Press the PRG button to enter the parameter modification state.
  6. Set the parameter to 5 to reset the system parameters to factory defaults using the potentiometer and SET button.
POWTRAN Inverter PI8600

Setting and Removing Passwords:

  1. Setting a Password:
    • Enter the system function group (y00-23) as described above.
    • Switch to y15 (User Decode Input) to set the password.
    • Enter the desired password using the potentiometer and SET button.
  2. Removing a Password:
    • Again, enter the system function group.
    • Switch to y16 (User Password Input).
    • Enter the current password followed by the new password (all zeros to remove the password) using the potentiometer and SET button.
2. Fault Code Enumeration and Analysis
FUALT COF

Fault Code COF – Communication Failure:

Symptoms:

  • The inverter fails to communicate properly with external devices or the control panel.

Possible Causes:

  1. Poor connection at the keyboard interface or control board.
  2. Faulty keyboard cable or crystal connector.
  3. Damaged control board or keyboard hardware.
  4. Excessive length of the keyboard cable causing interference.

Solutions:

  1. Check and tighten all connections at the keyboard interface and control board.
  2. Replace the keyboard cable or crystal connector if damaged.
  3. Inspect the control board and keyboard for any signs of damage. Replace if necessary.
  4. If using a long keyboard cable, consider using a shielded cable or reducing the cable length to minimize interference.

Other Common Fault Codes:

  • OC: Overcurrent. Check the motor and cable connections, and ensure the motor is not overloaded.
  • OU: Overvoltage. Verify the input voltage and consider installing a voltage stabilizer.
  • LU: Undervoltage. Check the power supply and ensure it meets the inverter’s voltage requirements.
  • OL: Overload. Reduce the load on the motor or adjust the overload protection parameters.

By following the above instructions, users can effectively operate the Powtran PI8600 series inverters, troubleshoot common issues, and maintain optimal performance.

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Powtran Inverter PI500 Series Operation Methods and ERR07 Fault Handling

I. Operation Methods for Powtran Inverter PI500 Series

1. Panel Start and Stop

The Powtran Inverter PI500 series features an easy-to-use operation panel, allowing users to start and stop the inverter via panel buttons. Specific steps are as follows:

  • Start: Press the “Run” button on the operation panel to start the inverter. In keyboard operation mode, this button is used to initiate running.
  • Stop: Press the “Stop/Reset” button on the operation panel to stop the inverter. In keyboard operation mode, this button is used to halt running; in fault alarm states, it can be used for reset operations.
powtran inverter PI500 series

2. Debugging Steps

Proper debugging of the inverter is crucial to ensure its normal operation. The following is a general debugging process:

  1. Check Connections: Ensure all power and motor cable connections are correct and secure.
  2. Set Parameters: Configure various inverter parameters, such as control mode, acceleration and deceleration times, frequency source, etc., via the operation panel or remote communication.
  3. Motor Parameter Self-Learning: In vector control mode, motor parameter self-learning is required to ensure accurate motor control by the inverter.
  4. Jog Operation: Perform a jog operation to observe whether the motor’s rotation direction is correct. If abnormal, adjust the motor wiring phase sequence.
  5. Actual Operation: After confirming everything is correct, conduct an actual operation test to observe whether the inverter’s output frequency, current, voltage, and other parameters are normal.
fault err.07 of powtran inverter

II. Inverter Fault Codes and Meanings

The Powtran Inverter PI500 series provides extensive fault codes to help users quickly locate issues. Here are some common fault codes and their meanings:

  • Err.01: Inverter unit protection, possibly caused by output circuit short circuit, module overheating, etc.
  • Err.02: Acceleration overcurrent, possibly caused by too short acceleration time, low voltage, etc.
  • Err.03: Deceleration overcurrent, possibly caused by too short deceleration time, sudden load changes, etc.
  • Err.04: Constant speed overcurrent, possibly caused by excessive load, motor stall, etc.
  • Err.05: Acceleration overvoltage, possibly caused by lack of braking unit, high input voltage, etc.
  • Err.07: Constant speed overvoltage, possibly caused by external force dragging the motor during operation, high input voltage, etc.

III. ERR07 Fault Analysis

The Err.07 fault code indicates constant speed overvoltage, meaning the inverter detects excessively high output voltage during constant speed operation. Possible causes include:

  1. High Input Voltage: When the input voltage exceeds the rated voltage range of the inverter, it may lead to excessively high output voltage.
  2. External Force Dragging the Motor: During constant speed operation, if the motor is dragged to rotate by an external force, it may cause the inverter’s output voltage to rise.
  3. Braking Unit Failure: If the inverter is not equipped with a braking unit or the braking unit fails, it may not effectively dissipate the motor’s regenerative energy during deceleration, resulting in voltage rise.

IV. Solutions for ERR07 Fault

1. Reset or Adjust Inverter Parameters

  • Check Input Voltage: Ensure the input voltage is within the rated voltage range of the inverter. If the input voltage is too high, measures must be taken to reduce it.
  • Check External Force Dragging: Eliminate the possibility of external force dragging the motor and ensure the motor operates in a free state.
  • Check Braking Unit: If the inverter is not equipped with a braking unit, it should be installed as per actual needs; if the braking unit fails, it should be promptly replaced.
  • Adjust Parameters: Adjust relevant inverter parameters based on actual conditions, such as acceleration and deceleration times, overvoltage protection thresholds, etc.

2. Replace Boards or Circuits

If the Err.07 fault cannot be resolved after the above adjustments, it may be necessary to replace internal boards or circuits of the inverter. Specific steps are as follows:

  1. Power Off: First, disconnect the inverter’s power supply to ensure safety.
  2. Disassemble the Enclosure: Use appropriate tools to disassemble the inverter’s enclosure to expose the internal circuitry.
  3. Locate Faulty Components: Based on the fault code and circuit diagram, locate the potentially faulty board or circuit.
  4. Replace Components: Remove the faulty board or circuit and replace it with a new one. Be careful not to damage other components during the replacement process.
  5. Assemble the Enclosure: After replacement, reinstall the inverter’s enclosure.
  6. Power On and Test: Power on the inverter again and conduct tests to verify whether the fault has been resolved.

V. Precautions

  • Before performing any maintenance or replacement operations, ensure the inverter is powered off and follow relevant safety operating procedures.
  • When replacing components, use components of the same model and specifications as the original to ensure the normal operation of the inverter.
  • If unfamiliar with the internal structure and working principle of the inverter, seek help from professional technicians.

By following the above steps, users can effectively resolve the Err.07 fault in the Powtran Inverter PI500 series and ensure the normal operation of the inverter.

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Operating Guide for GK820 INVERTER User Manual of JiTaike

Introduction to the Functions of the INVERTER Operation Panel

The operation panel of JiTaike’s GK820 INVERTER serves as the primary interface for user interaction, providing a range of functions and settings. The operation panel includes a display screen and various buttons such as the Confirm key, Increase key, Decrease key, Run key, and Stop/Reset key.

How to Initialize Parameters

Parameter initialization restores all the function codes of the INVERTER to their factory default values. The operation steps are as follows:

  1. In the stopped state, press the Confirm key to display the current function code A0-00.
  2. Press the key to switch to the A0-03 function code.
  3. Press the key to select “2” or “3”, where “2” restores all parameters except motor parameters, and “3” restores all parameters (including motor parameters).
  4. Press the key to save the setting and automatically return to the A0-00 function code.
  5. Press the key to exit the function code sequence editing state.

How to Set and Cancel a Password

Password setting protects the INVERTER parameters from being changed arbitrarily. The operation steps are as follows:

  1. In the stopped state, press the Confirm key to display the current function code A0-00.
  2. Press the key to switch to the A0-00 function code and press the key to display the parameter value 0000.
  3. Press the key to modify the parameter value, for example, setting it to 1006.
  4. Press the key to save and automatically display the next function code.
  5. Repeat steps 2 to 4, setting the A0-00 parameter value to 1006 again.
  6. Simultaneously press the Increase key and Decrease key for 5 minutes, or restart the INVERTER, and the password will be activated.

The method for canceling the password is similar. Simply write the A0-00 parameter value as 0000 twice consecutively after the password is successfully set.

Terminal Start/Stop and External Potentiometer Speed Regulation Settings

Wiring Instructions

To achieve terminal start/stop and external potentiometer speed regulation, proper wiring and parameter settings are required. The specific wiring steps are as follows:

  1. Start/Stop Terminal Wiring: Connect the start terminal (e.g., FWD) to the X1 terminal of the INVERTER, and the stop terminal (e.g., REV) to the X2 terminal of the INVERTER.
  2. External Potentiometer Wiring: Connect the output terminal of the potentiometer to the AI1 or AI2 terminal of the INVERTER. Select voltage input or current input based on the potentiometer type and set it via the jumper switch S2 or S3.

Parameter Settings

  1. Run Command Given Method Settings:
    • Enter the function code b1-00 and set it to “1” for terminal control.
    • Enter the function code b1-02 and select forward or reverse rotation as needed.
  2. Frequency Given Method Settings:
    • Enter the function code b0-00 and set it to “3” for analog input AI1 or AI2.
    • Enter the function code b0-01 and set it to the corresponding analog input channel, such as “3” for AI1.
  3. Other Related Parameters:
    • Set parameters such as acceleration time (b2-01) and deceleration time (b2-02) as needed.

Meaning and Solutions of INVERTER Fault Codes

Common Fault Codes and Their Meanings

  • oC1/oC2/oC3: Overcurrent fault, indicating that the output current of the INVERTER exceeds the rated value.
  • ov1/ov2/ov3: Overvoltage fault, indicating that the DC bus voltage of the INVERTER is too high.
  • oL1: INVERTER overload, indicating that the output current of the INVERTER exceeds the rated value for an extended period.
  • oL2: Motor overload, indicating that the motor current exceeds the set value.
  • FAL: Module protection, indicating a fault in the power module inside the INVERTER.
  • ISF: Input power supply abnormality, indicating that the input power supply voltage or frequency is abnormal.

Solutions

  1. Overcurrent Fault (oC Series):
    • Check if the motor is locked or the load is too heavy.
    • Check the wiring between the motor and the INVERTER for good connection.
    • Appropriately increase the acceleration time and deceleration time.
  2. Overvoltage Fault (ov Series):
    • Check if the input power supply voltage is too high.
    • Check if the braking unit and braking resistor are working properly.
  3. Overload Fault (oL Series):
    • Check if the load is too heavy or if the motor is damaged.
    • Appropriately increase the overload protection time or reduce the overload protection level.
  4. Module Protection (FAL):
    • Check for foreign objects or damage inside the INVERTER.
    • Contact the manufacturer or a professional technician for repair.
  5. Input Power Supply Abnormality (ISF):
    • Check if the input power supply voltage and frequency meet the requirements.
    • Check if the power cord and wiring terminals are loose or poorly connected.

By following these steps, users can better operate and maintain JiTaike’s GK820 INVERTER, ensuring its normal operation and extending its service life.