Category: Electrical Equipment Manuals

VFD，PLC， User manual for touch screen, servo, CNC and other products

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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.

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Guide to Using the Lijia DR300A Inverter User Manual

I. Introduction to Operation Panel Functions and Settings

The operation panel of the Lijia DR300A inverter is its core control unit, providing an intuitive and user-friendly interface. The panel includes multiple function keys and indicator lights for monitoring and controlling the inverter’s operating status.

DR300A operation panel function diagram

1. Password Setting and Keyboard Locking

To ensure device security, the DR300A supports user password protection. To set a password, first enter the parameter setting interface (Group F4), locate the F4.31 parameter item, and set its value to a non-zero value, which will be the user password. To disable password protection, simply reset F4.31 to 0.

The keyboard locking function prevents accidental operation. To enable locking, set the F4.25 parameter item to a non-zero value. To unlock, simultaneously press and hold the “<<” key and the “V” key for more than 2 seconds.

2. Factory Settings Restoration

If you need to restore the inverter parameters to their factory settings, you can set the F0.08 parameter item to “Parameter Restore Mode 1” or “Parameter Restore Mode 2”. The former does not include analog input/output offset parameters, while the latter does. Additionally, you can choose to “Clear Historical Information” to delete fault records and other historical data.

3. Macro Setting Selection

The DR300A offers multiple application macros to meet different needs. To select the “Power Winch Application Macro”, for example, navigate to the F0.04 parameter item and set its value to 6. This will automatically configure the inverter to meet the specific control requirements of power winch equipment.

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

1. Terminal Start and Forward/Reverse Control

The DR300A supports external terminal start and control of motor forward/reverse rotation. First, set the F0.05 parameter item to 1 (External Terminal Control). Then, connect external switches or relays to the corresponding terminals (e.g., FWD for forward rotation, REV for reverse rotation) to control the motor’s running direction.

2. External Potentiometer Speed Adjustment

To adjust motor speed via an external potentiometer, set the speed reference to analog input. Navigate to the F0.08 parameter item and select AI0, AI1, or AI2 as the speed source. Next, connect the external potentiometer to the corresponding analog input terminal (AI0, AI1, or AI2) and GND. Additionally, set parameters such as F2.15 to F2.20 according to the potentiometer’s output range to match the potentiometer’s minimum/maximum input voltage with the inverter’s speed range.

III. Fault Code Analysis and Resolution

The DR300A inverter features comprehensive fault diagnosis capabilities, enabling real-time monitoring and reporting of device status. When a fault occurs, the “ALM” indicator light on the panel will illuminate, along with the corresponding error code.

1. Common Fault Codes

  • Err.01: Inverter Unit Protection, possible causes include overcurrent, overheating, etc. Solutions include checking motor load, cooling conditions, and cable connections.
  • Err.05: Acceleration Overcurrent, possibly caused by motor stall or excessive load. Check for motor and mechanical blockages, adjust the load, or increase acceleration time.
  • Err.13: Communication Fault, check the communication line, baud rate, and address settings for correctness.

2. Fault Troubleshooting Steps

  • Initial Check: Confirm that the power supply is normal and there are no short circuits or open circuits.
  • Parameter Review: Check that relevant parameter settings are correct, such as acceleration time, deceleration time, motor parameters, etc.
  • Equipment Inspection: Observe whether the motor runs smoothly and listen for any abnormal noises or vibrations.
  • Log Analysis: Review the inverter’s fault records to analyze historical fault information and pinpoint the root cause of the problem.
Lijia frequency converter DR300A series standard wiring diagram

IV. Conclusion

The Lijia DR300A Inverter User Manual is an important reference for operating and maintaining this equipment. By mastering the operation panel functions, properly setting parameters, and quickly diagnosing faults, you can ensure efficient and stable operation of the inverter. Both beginners and experienced engineers can benefit from the practical guidance and assistance provided in the manual. In practical applications, it is recommended to flexibly configure and optimize settings based on specific equipment conditions and actual needs to achieve the best control effects.

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User Guide for XFC500 Series Manual of Xichi Inverter

I. Introduction to User Panel Functions and Settings

Function diagram of Xichi frequency converter XFC500 series operation panel

1. Access Privileges and User Password Settings

The Xichi Inverter XFC500 series offers different levels of access privileges to protect user parameters from unauthorized modification. Through the operation panel, users can enter the parameter setting menu and select the “b0-03” function code to set the parameter modification attribute. Options include “0: Modifiable” and “1: Not Modifiable”. Additionally, users can set a user password by configuring the “b0-05” function code to protect parameters from being modified by unauthorized personnel. To clear the password, simply set “b0-05” to “0”.

2. Parameter Initialization

When users need to restore factory settings, they can achieve this by setting the “b0-01” function code. Options include “0: No Operation”, “1: Restore Factory Parameters (excluding motor parameters and GP type settings)”, and “2: Clear Record Information”. Selecting “1” will restore the inverter to its factory default settings, but motor parameters and GP type settings will remain unchanged.

3. PWM-related Parameter Settings

PWM (Pulse Width Modulation) parameters significantly impact the operating performance of the inverter. Users can adjust the carrier frequency by setting the “C0-03” function code, with a range of 0.5kHz to 16.0kHz. A lower carrier frequency may increase motor noise and current harmonics, while a higher carrier frequency may increase inverter losses and temperature rise. Furthermore, the “C0-04” function code allows users to enable automatic carrier frequency adjustment based on temperature to avoid overheating.

II. Realization of Terminal Forward/Reverse and External Potentiometer Speed Regulation

1. Terminal Forward/Reverse Function

To achieve the forward/reverse function of the inverter, users need to correctly set the multifunction digital input terminals. Typically, forward rotation can be set by configuring the “F1-00” function code to “1: Forward Run (FWD)”, and reverse rotation to “2: Reverse Run (REV)”. During wiring, connect the forward control signal to the corresponding digital input terminal (e.g., DI1) and the reverse control signal to another digital input terminal (e.g., DI2).

2. External Potentiometer Speed Regulation

External potentiometer speed regulation is usually achieved through analog input terminals. Users can select “F0-01” function code to set the main frequency source to “AI1” (Analog Input 1). During wiring, connect the sliding contact of the external potentiometer to the AI1 terminal, and the fixed contacts to the GND terminal of AI1 and the common terminal of the inverter (e.g., COM terminal). Additionally, the input curve of AI1 needs to be set through function codes such as “F1-25” to “F1-28” to determine the correspondence between the potentiometer position and the output frequency.

XFC500 series standard wiring diagram for Xichi frequency converter

III. Fault Code Meaning Analysis and Solutions

1. Err09: Undervoltage Fault

When the inverter detects that the input voltage is below the set value, it will report an Err09 fault. Solutions include checking whether the input power supply is normal, whether the voltage is stable, and whether the cable connections are reliable.

2. Err11: Motor Overload

The Err11 fault typically indicates that the motor is overloaded. Users should check whether the motor is operating under overload conditions, whether the load exceeds the motor’s rated capacity, and whether there is any jamming in the transmission mechanism.

3. Err15: External Fault

The Err15 fault indicates that the external fault input terminal has been activated. Users should check whether the external fault signal source is normal and whether the wiring is reliable. If the external fault signal is a false operation, the relevant circuits and components should be checked.

IV. Conclusion

The XFC500 Series Manual of Xichi Inverter provides users with detailed operation instructions and parameter setting methods. By reasonably setting access privileges and user passwords, users can protect inverter parameters from unauthorized modification. By correctly setting PWM parameters, terminal forward/reverse, and external potentiometer speed regulation functions, users can achieve precise control over the inverter. Additionally, the manual provides detailed analysis and solutions for fault codes, helping users quickly locate and resolve issues. Overall, the manual is well-structured, logically clear, and an essential reference for users to operate and maintain the inverter.

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VAIDNOR VDF750 Series General Inverter User Manual Guide

I. Introduction to Operation Panel Functions and Basic Settings

1.1 Introduction to Operation Panel Functions

The VAIDNOR VDF750 series inverter is equipped with an intuitive and user-friendly LED operation panel for function code operation, status monitoring, and control. The main functions of the operation panel include:

  • RUN Indicator: Indicates whether the inverter is currently running.
  • LO/RE (Run Command) Indicator: Indicates the current run control source (panel, terminal, or communication).
  • FWD/REV (Forward/Reverse) Indicator: Indicates the current rotation direction of the motor.
  • TUNE/TC (Tuning/Torque Control/Fault) Indicator: Indicates the current torque control mode or fault status.

Through function keys on the operation panel such as the Programming Key (PRG), Enter Key (ENT), Increment Key (+), and Decrement Key (-), users can conveniently modify parameters, monitor status, and control the inverter.

VDF750 Operation Panel Function Diagram

1.2 Parameter Initialization

Initializing parameters can restore the inverter settings to the factory defaults. The specific operation steps are as follows:

  1. Power On: Ensure the inverter is correctly wired and powered on.
  2. Enter Parameter Setting Interface: Press the PRG key to enter programming mode, and use the Increment or Decrement keys to select the PP group parameters.
  3. Set Parameter Initialization: Set PP-01 to 1 and press the ENT key to confirm. At this point, the inverter’s parameters will be restored to the factory settings (excluding motor parameters).

1.3 Self-Learning Operation

The self-learning operation allows the inverter to automatically acquire the electrical parameters of the controlled motor to improve control accuracy. The specific operation steps are as follows:

  1. Motor Load Disconnection: If possible, disconnect the motor from the load to ensure that the motor can rotate freely without load.
  2. Select Self-Learning Mode: Set P1-37 to 2 (asynchronous motor dynamic complete tuning) or 3 (asynchronous motor static complete tuning) and press the ENT key to confirm.
  3. Start Self-Learning: Press the RUN key on the operation panel, and the inverter will automatically drive the motor to perform the tuning operation, stopping automatically upon completion.

1.4 Setting and Eliminating Passwords

To protect parameters from being modified casually, a user password can be set.

  • Setting Password: Set PP-00 to a non-zero value (1-65535) and press the ENT key to confirm.
  • Eliminating Password: Reset PP-00 to 0 and press the ENT key to confirm, which will eliminate the password.
VAIDNOR VDF750 series inverter wiring diagram

II. Forward/Reverse Start/Stop and External Potentiometer Speed Adjustment Settings

2.1 Wiring Instructions

To achieve forward/reverse start/stop and external potentiometer speed adjustment, it is necessary to correctly wire the control terminals of the inverter. The specific wiring is as follows:

  • Forward Start: Connect the external forward button or relay contact to the DI1 terminal (positive) and the COM terminal (negative).
  • Reverse Start: Connect the external reverse button or relay contact to the DI2 terminal (positive) and the COM terminal (negative).
  • Stop: Connect the external stop button or relay contact to the DI3 terminal (positive) and the COM terminal (negative).
  • External Potentiometer Speed Adjustment: Connect the center tap of the external potentiometer to the AI1 terminal, one end to the +10V terminal, and the other end to the GND terminal.

2.2 Parameter Settings

  • Run Command Selection: Set P0-02 to 1 (terminal control).
  • DI Terminal Function Settings:
    • Set P4-00 to 1 (DI1 for forward operation).
    • Set P4-01 to 2 (DI2 for reverse operation).
    • Set P4-02 to 9 (DI3 for fault reset).
  • AI Terminal Function Settings:
    • Set P0-03 to 2 (AI1 analog input).

III. Fault Code Analysis and Solutions

3.1 Fault Code Analysis

The VAIDNOR VDF750 series inverter has comprehensive fault diagnosis functions. When a fault occurs, the inverter will display the corresponding fault code. The following are some common fault codes and their possible causes:

  • Err02: Acceleration overcurrent. Possible causes include output circuit short circuit, motor stall, or improper parameter settings.
  • Err03: Deceleration overcurrent. Possible causes include damaged braking resistors, too short deceleration time, or excessive load inertia.
  • Err04: Constant speed overcurrent. Possible causes include motor overload, improper parameter settings, or external interference.
  • Err05: Acceleration overvoltage. Possible causes include excessive input voltage, improper deceleration time settings, or lack of braking resistors.

3.2 Solutions

  • Check Peripheral Circuits: Confirm that the motor and cables are correctly connected and there are no short circuits or open circuits.
  • Adjust Parameters: Adjust parameters such as acceleration/deceleration time and braking resistors based on the load conditions.
  • Check Braking Resistors: Ensure that the braking resistors are correctly connected and not damaged.
  • External Environment Check: Eliminate external interference sources such as electromagnetic interference.

IV. Conclusion

The VAIDNOR VDF750 series inverter user manual provides detailed operation guides and parameter setting methods. By correctly understanding and applying the knowledge in the manual, users can easily perform functions such as inverter initialization, self-learning operation, password setting and elimination, forward/reverse start/stop, and external potentiometer speed adjustment. Additionally, the manual provides comprehensive fault code analysis and solutions to help users quickly locate and resolve issues, ensuring stable operation of the inverter.

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Lingshida Inverter LSD-B7000 Series User Manual Usage Guide

I. Introduction

The Lingshida LSD-B7000 series inverter is a high-performance, multi-functional full-vector variable frequency drive widely used in various industrial control fields. To help users better understand and utilize this inverter, this article will provide a detailed explanation of its panel functions, parameter settings, external wiring, fault code handling, and more.

Lingshida frequency converter LSD-B7000 operation panel function diagram

II. Panel Function Introduction

The Lingshida LSD-B7000 series inverter features a clean and intuitive panel design with reasonably laid out function keys for easy operation. The main function keys include:

  • RUN Button: Starts the inverter.
  • STOP Button: Stops the inverter.
  • PROG Button: Enters or exits programming mode for modifying and viewing parameters.
  • ▲▼ Buttons: Used to increase or decrease parameter values in programming mode.
  • DATA Button: Confirms parameter settings and saves them.

Additionally, the panel is equipped with LED indicators to display the inverter’s operational status and fault information.

III. Parameter Settings

  1. Selecting the Appropriate V/F Curve

The V/F curve represents the relationship between the output voltage and frequency of the inverter. Selecting the right V/F curve is crucial for ensuring stable motor operation. The LSD-B7000 series inverter offers multiple preset V/F curves. Users can choose based on the motor type and load characteristics by adjusting the Pr015 parameter in programming mode.

  1. Setting Maximum Frequency, Maximum Voltage, Minimum Frequency, Minimum Voltage, Intermediate Voltage, and Intermediate Frequency
  • Maximum Frequency: Sets the highest output frequency of the inverter, adjustable through the Pr016 parameter.
  • Maximum Voltage: Sets the highest output voltage, adjustable through the Pr017 parameter.
  • Minimum Frequency: Prevents motor overheating at low speeds by setting the lowest output frequency, adjustable through the Pr022 parameter.
  • Minimum Voltage: Ensures stable motor operation at low speeds by setting the lowest output voltage, adjustable through the Pr023 parameter.
  1. Setting Intermediate Voltage and Intermediate Frequency

Adjusting the intermediate voltage and frequency can optimize the inverter’s performance. Users can set two intermediate frequency points and their corresponding voltage values by modifying the Pr018 to Pr021 parameters.

  1. Setting UP/DOWN Frequency Given Function

The UP/DOWN function allows users to manually adjust the output frequency of the inverter using the ▲▼ buttons on the panel. Enable and adjust this function by modifying the Pr060 and Pr061 parameters in programming mode.

  1. Jogging Speed Adjustment

Jogging is a temporary method for adjusting the output frequency. Set the jogging frequency by modifying the Pr058 parameter and press the JOG button on the panel to achieve jogging speed adjustment.

IV. External Wiring and Parameter Settings

  1. External Terminal Forward/Reverse Control

To achieve forward/reverse control via external terminals, connect the forward (FR) and reverse (RR) terminals. In programming mode, select the external terminal control mode by adjusting the Pr005 parameter and set the Pr141 and Pr142 parameters for forward and reverse functions.

  1. External Potentiometer Speed Control

External potentiometer speed control is a commonly used speed adjustment method. Connect the output end of the potentiometer to the frequency given terminal (e.g., FV terminal) of the inverter. Users can adjust the output frequency of the inverter by rotating the potentiometer. In programming mode, select the external analog voltage given mode by adjusting the Pr004 parameter and set the corresponding FV terminal parameters (e.g., Pr152 and Pr153) to adjust the gain and offset.

Lingshida inverter LSD-B7000 standard wiring diagram

V. Fault Code Meaning Analysis and Solutions

The Lingshida LSD-B7000 series inverter features comprehensive fault protection. When a fault occurs, the inverter displays the corresponding fault code. Below are some common fault codes, their meanings, and solutions:

  • OC: Overcurrent Protection. May be caused by motor overload or output short circuit. Solutions include checking motor load, output circuit, and parameter settings.
  • OV: Overvoltage Protection. May be due to excessive input voltage or damaged brake resistor. Solutions include checking input voltage and brake resistor.
  • LU: Undervoltage Protection. May be due to low input voltage. Solutions include checking input power supply and voltage stabilizer.
  • EF: External Fault. May be caused by abnormal external input signals. Solutions include checking external input terminals and signal sources.

When encountering a fault code, users should first make a preliminary judgment based on the code’s meaning, then follow the solutions to inspect and repair. If the problem persists, contact Lingshida’s after-sales service center for further technical support.

VI. Conclusion

The Lingshida LSD-B7000 series inverter is a powerful and easy-to-use full-vector variable frequency drive. Through this guide, users can better understand and utilize this inverter, mastering its panel functions, parameter settings, external wiring, and fault code handling. In practical applications, users should set parameters and wire connections based on actual needs, regularly perform maintenance and inspections to ensure the long-term stable operation of the inverter.

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Difuss Inverter DS9 Series Operation Manual User Guide

I. Introduction to Operation Panel Functions and Parameter Settings

Operation Panel Functions

The Difuss Inverter DS9 series features an intuitive and user-friendly operation panel, which primarily comprises a data display area, function indicators, a numeric display area, and multiple function keys. The data display area shows the current operating status, set values, and monitoring data. Function indicators such as IRUN (Running Indicator) and ILOCAL/REMOTE (Operation Mode Indicator) help users quickly understand the inverter’s working status. The numeric display area, with a 5-digit LED display, supports the display of set frequency, output frequency, various monitoring data, and alarm codes. Function keys include PRG (Program Key), ENTER (Confirm Key), FUN (Multi-function Key), Shift Key, RUN (Run Key), and STOP/RES (Stop/Reset Key), facilitating parameter setting and operational control.

Function diagram of DS9 frequency converter operation panel

Parameter Settings

1. Setting Rated Frequency, Current, and Power

The DS9 inverter allows users to set the motor’s rated frequency, current, and power based on actual needs. These parameters are typically set in the P1 group of motor parameters. For instance, the motor’s rated power is set via P1-01, and its rated current is set via P1-03. Proper setting of these parameters is crucial for the normal operation of the inverter, ensuring that the motor operates stably within its rated working range.

2. Setting Upper and Lower Limit Frequencies

The upper and lower limit frequencies are set through parameters P0-12 and P0-14, respectively. The upper limit frequency defines the maximum frequency output by the inverter, while the lower limit frequency defines the minimum output frequency. Setting these parameters helps protect the motor from overload or damage during low-speed operation, ensuring stable operation within the set frequency range.

Application Macro Settings

CNC Machine Tool 100Hz Macro

By setting P0-29=11, you can select the CNC Machine Tool 100Hz macro. Tailored for CNC machine tool applications, this macro ensures stable inverter operation at 100Hz, meeting the high precision and stability requirements of CNC machine tools.

Spindle 400Hz Macro

By setting P0-29=21, 22, or 23, you can select different spindle 400Hz macros. Designed for high-speed spindle motors, these macros support output frequencies of up to 400Hz, catering to the needs of precision machining and high-speed cutting. Users can choose the appropriate macro based on specific application scenarios and fine-tune it through parameters like P0-03 and P0-08 to achieve optimal performance.

Basic wiring diagram of DS9 frequency converter

II. Terminal Control and External Speed Regulation Settings

Forward and Reverse Control

Achieving forward and reverse control of the inverter through terminals is straightforward. First, configure terminal X1 for forward operation (FWD) and terminal X2 for reverse operation (REV). The specific settings are as follows:

  • Enter the P4 group of input terminal settings and set P4-00 to 1 (X1 terminal for forward operation).
  • Set P4-01 to 2 (X2 terminal for reverse operation).

After these settings, controlling the on/off states of terminals X1 and X2 via external switches or PLCs enables forward and reverse control of the inverter.

External Potentiometer Speed Regulation

External potentiometer speed regulation is a commonly used speed control method that adjusts the inverter’s output frequency by changing the potentiometer’s resistance. The specific settings are as follows:

  • Configure AI1 terminal as an analog input to receive voltage signals from an external potentiometer. Select the AI1 curve via parameter P4-33 and set parameters such as P4-13 to P4-16 to define the correspondence between input voltage and output frequency.
  • During wiring, connect the sliding end of the external potentiometer to the AI1 terminal and its fixed ends to the +10V and GND terminals, respectively.

After completing the settings and wiring, rotating the potentiometer changes the inverter’s output frequency, enabling speed regulation.

III. Fault Code Analysis and Solutions

The DS9 inverter boasts a comprehensive fault protection mechanism that stops the inverter promptly and displays the corresponding fault code in case of a fault. Here are some common fault codes and their solutions:

  • Err01 (Inverter Unit Protection): May be caused by output circuit short circuit, excessive length of motor and inverter wiring, or module overheating. Solutions include troubleshooting peripheral issues, installing reactors or output filters, and checking for blocked air ducts.
  • Err02 (Acceleration Overcurrent): May result from too short an acceleration time, low voltage, or excessive load. Solutions include increasing the acceleration time, adjusting the voltage to the normal range, or reducing the load.
  • Err03 (Deceleration Overcurrent): Similar to acceleration overcurrent, it may be caused by too short a deceleration time, low voltage, or excessive load. The solutions are also similar.
  • Err14 (Module Overheating): May be due to high ambient temperature, blocked air ducts, or damaged fans. Solutions include lowering the ambient temperature, cleaning the air ducts, or replacing the fans.

When encountering a fault, users should first look up possible fault causes based on the displayed fault code and follow the corresponding solutions. If the problem persists, users should promptly contact the inverter manufacturer or agent for technical support.

IV. Conclusion

The Difuss Inverter DS9 Series Operation Manual provides users with a comprehensive user guide, covering operation panel function introduction, parameter setting methods, terminal control and external speed regulation settings, fault code analysis, and troubleshooting. By carefully reading and following the instructions in the manual, users can easily master the operation and maintenance skills of the inverter, ensuring stable and efficient equipment use.

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User Manual Guide for JTE330 Series Inverter by Jintian

The JTE330 series inverter from Jintian is a high-performance vector inverter widely used in industrial automation control systems. To assist you in utilizing this inverter more effectively, this article will provide a detailed introduction to its operation panel functions, parameter settings, and specific operation procedures.

Jintian frequency converter JTE330 basic wiring diagram

1. Introduction to Operation Panel Functions

The JTE330 series inverter features an intuitive operation panel that allows users to monitor and control the inverter’s operation status. The panel typically includes buttons for frequency adjustment, mode selection, start/stop, and parameter settings.

  • Frequency Adjustment Buttons: These allow users to manually adjust the output frequency of the inverter.
  • Mode Selection Button: This button toggles between different operational modes, such as frequency setting, parameter adjustment, and fault diagnosis.
  • Start/Stop Button: Used to start or stop the inverter’s output.
  • Parameter Setting Buttons: These buttons are used to navigate through the inverter’s parameter settings for detailed configuration.

2. Controlling Inverter Operation Using “Preset Frequency F0-08” and Panel Start Mode

To control the inverter using the preset frequency F0-08 and panel start mode, you need to set the following specific parameters:

  1. Enter Parameter Setting Mode:
    • Press the “Mode” button to enter the parameter setting mode.
    • Use the navigation buttons to select the parameter you wish to adjust.
  2. Set Preset Frequency F0-08:
    • Locate parameter F0-08, which represents the preset frequency.
    • Adjust the value of F0-08 to the desired output frequency using the frequency adjustment buttons.
  3. Enable Panel Start Mode:
    • Navigate to the relevant parameter that controls the start mode (usually labeled as a start source selection parameter).
    • Set this parameter to “Panel” or the equivalent option to enable panel start mode.
  4. Save Settings and Exit:
    • After setting the desired parameters, press the “Save” or equivalent button to store the settings.
    • Exit the parameter setting mode by pressing the “Mode” button again.

Now, when you press the start button on the operation panel, the inverter will output the frequency set in F0-08.

3. Restoring Factory Default Settings

To restore the inverter to its factory default settings, follow these steps:

  1. Enter Parameter Setting Mode:
    • As described above, enter the parameter setting mode using the “Mode” button.
  2. Navigate to Reset Parameter:
    • Use the navigation buttons to locate the parameter responsible for resetting the inverter to factory defaults. This parameter is usually labeled as “Reset to Factory Defaults” or something similar.
  3. Perform Reset:
    • Set the reset parameter to “Yes” or the equivalent value to initiate the reset process.
    • The inverter may require confirmation; follow any on-screen prompts to complete the reset.
  4. Save Settings and Exit:
    • After the reset is complete, press the “Save” button to store the factory default settings.
    • Exit the parameter setting mode.

4. Setting Up Speed Tracking Function

The speed tracking function allows the inverter to automatically adjust its output frequency to match the speed of an external motor or rotating equipment. To set up this function:

  1. Enter Parameter Setting Mode:
    • Enter the parameter setting mode as described earlier.
  2. Locate Speed Tracking Parameters:
    • Navigate to the parameters related to the speed tracking function. These parameters may include settings for enabling speed tracking, selecting the speed tracking source, and adjusting speed tracking gain.
  3. Enable Speed Tracking:
    • Set the parameter that enables speed tracking to “On” or the equivalent value.
  4. Configure Speed Tracking Source:
    • Select the appropriate speed tracking source, which could be an encoder, another motor, or another external signal.
  5. Adjust Speed Tracking Gain:
    • Use the related parameter to adjust the gain of the speed tracking system. This setting determines how sensitive the inverter’s output frequency is to changes in the tracked speed.
  6. Save Settings and Exit:
    • After configuring all necessary parameters, press the “Save” button to store the settings.
    • Exit the parameter setting mode.

By following these guidelines, you can effectively utilize the JTE330 series inverter’s operation panel to control its operation, restore factory default settings, and set up advanced functions like speed tracking.

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Shanghai RMSPD INVERTER SPD990M Mini User Guide

I. Introduction to Inverter Panel Functions and Basic Operations

1. Panel Function Introduction
Function diagram of RMSPD INVERTER SPD990M operation panel

The RMSPD INVERTER SPD990M Mini is equipped with an LED operation panel that primarily includes the following function keys:

  • Shift Key: Used to select digits for modification when editing data.
  • Multi-function Key: Function set by parameter F8.04, defaulting to Jog.
  • Analog Potentiometer: Used for frequency setting.
  • Programming Key: Enters or exits the programming mode.
  • Increment/Decrement Keys: Adjusts data or function codes.
  • Confirm Key: Enters the next menu level or confirms data.
  • Run Key: Starts the inverter.
  • Stop/Reset Key: Stops the inverter or resets faults.
2. Resetting to Factory Defaults

To reset the inverter to its factory settings, follow these steps:

  1. Enter the programming mode (press the programming key).
  2. Use the shift and increment/decrement keys to select function code F8.03.
  3. Press the confirm key to enter F8.03 settings and select “1” for factory reset.
  4. Press the confirm key again to save and exit.
3. Starting, Stopping, and Adjusting Frequency via Panel
  • Starting: Press the run key to start the inverter.
  • Stopping: Press the stop key to stop the inverter.
  • Frequency Adjustment: Use the analog potentiometer or increment/decrement keys to adjust the output frequency.
4. Terminal Forward/Reverse Control and External Potentiometer Frequency Setting
  • Forward/Reverse Control: Control via terminals X1 (forward) and X2 (reverse), requiring F2.13 and F2.14 to be set to corresponding functions.
  • External Potentiometer Frequency Setting: Connect to the AVI terminal and set F0.03 to 3 (AVI analog input).

II. PID Function Control for a Single Water Pump Motor

1. PID Function Wiring and Parameter Settings
  • Wiring: Connect the PID feedback signal to the AVI or ACI terminal.
  • Parameter Settings:
    • F3.00: Enable PID regulation, selecting appropriate input and feedback channels.
    • F3.01: Set the PID setpoint.
    • F3.02: Adjust the feedback channel gain.
    • F3.03 and F3.04: Set the proportional gain (P) and integral time (Ti).
2. Sleep Function Settings and Wake-up
  • Sleep Settings:
    • F3.10 and F3.11: Set sleep and wake-up threshold coefficients.
    • F3.12 and F3.13: Set sleep and wake-up delay times.
  • Wake-up: When the feedback value is less than the wake-up threshold, the inverter will automatically wake up.

III. Controlling the Inverter via a Weinview Touchscreen using Modbus Protocol

1. Inverter Settings
  • Communication Parameters:
    • F6.00: Set the device address.
    • F6.01: Configure Modbus communication parameters (baud rate, data format, etc.).
  • Control Commands:
    • Use function code 06 to write control commands to address 2002H for inverter forward/reverse and stop control.
    • Read and write frequencies to address 2001H.
2. Reading Alarm Values
  • Use function code 03 to read alarm codes starting from address 2100H.
RMSPD INVERTER SPD990M Wiring Diagram

IV. Fault Code Meanings and Solutions

Fault CodeNamePossible CausesSolutions
E0C1Overcurrent During AccelerationToo short acceleration time, undersized inverterExtend acceleration time, choose a larger inverter
E0C2Overcurrent During DecelerationToo short deceleration time, undersized inverterExtend deceleration time, choose a larger inverter
EHU1Overvoltage During AccelerationAbnormal input voltageCheck the input power supply
ESC1Power Module FaultOutput short circuit, control board malfunctionCheck motor wiring, contact the manufacturer for service
EOL1Inverter OverloadImproper V/F curve settings, heavy loadAdjust V/F curve, choose a larger inverter

V. Conclusion

The Shanghai RMSPD INVERTER SPD990M Mini is a powerful and easy-to-use variable frequency drive. Basic start, stop, and frequency adjustment can be achieved through the panel. Terminal control enables forward/reverse operation and analog frequency adjustment. PID functionality allows for closed-loop control of water pump motors. Communication with an upper computer can be facilitated via the Modbus protocol. In the event of a fault, referring to the fault code table can quickly identify the issue and take appropriate measures. We hope this guide assists users in better utilizing and maintaining the SPD990M Inverter.

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YQ3000-F11 User Guide and PID Function Application for Constant Pressure Water Supply of Yuqiang Inverter

The YQ3000-F11 inverter from Yuqiang, with its high performance and reliable stability, is widely used in various industrial automation applications. This article will provide a detailed introduction to the panel startup and speed adjustment methods, how to restore factory default settings, specific wiring and parameter settings for terminal forward/reverse rotation and external potentiometer speed adjustment, as well as the steps to implement PID function for single-loop closed-loop pressure control on a single-pump constant pressure water supply system. Additionally, fault code meanings and solutions will be provided.

I. Panel Startup and Speed Adjustment Methods

The YQ3000-F11 inverter from Yuqiang features an intuitive control panel, allowing users to set and adjust inverter parameters via buttons or knobs on the panel. Specific operation steps are as follows:

  1. Pre-startup Preparation: Close the air switch, observe whether there are abnormal displays on the inverter keyboard display, listen for any unusual sounds or vibrations within the inverter, and check for any unusual odors.
  2. Parameter Setting: According to the rated power and operating conditions of the motor, set the inverter’s maximum output frequency, start frequency, acceleration time, deceleration time, and other parameters via the control panel to ensure smooth and reliable inverter operation.
  3. Startup and Speed Adjustment: Set the inverter’s startup mode to manual or automatic. In automatic mode, the inverter will automatically start the motor based on preset parameters. After the motor starts, the speed can be adjusted via speed adjustment buttons or knobs on the control panel. The speed adjustment method may vary depending on the inverter model and display interface.
On site pressure gauge indication

II. Method to Restore Factory Default Settings

When the inverter settings are incorrect or a reset is needed, the parameters can be restored to factory defaults through the following two methods:

  1. Method 1: While the inverter is powered off, press and hold three combination keys simultaneously. Then, turn on the inverter power switch. Release the keys shortly after, and the inverter will restore its factory parameters.
  2. Method 2: Follow specific operating steps via the panel control to select the mode, switch parameters, and then press and hold the SET key to restore factory defaults.
Pressure feedback signal wiring

III. Specific Wiring and Parameter Settings for Terminal Forward/Reverse Rotation and External Potentiometer Speed Adjustment

The YQ3000-F11 inverter from Yuqiang supports motor forward/reverse rotation and external potentiometer speed adjustment via terminals. Specific wiring and parameter settings are as follows:

  1. Forward/Reverse Wiring:
    • Connect the positive and negative terminals of the motor to the corresponding terminals on the inverter according to the terminal wiring diagram.
    • Set the forward/reverse parameters (e.g., P001) as needed, enabling the inverter to achieve motor forward/reverse rotation based on control signals.
  2. External Potentiometer Speed Adjustment Wiring:
    • Connect the output terminal of the external potentiometer to the AI1 (or other adjustable input terminal) of the inverter.
    • Set AI1 as the speed reference input channel in the inverter parameters and adjust related parameters (e.g., P006) to achieve potentiometer speed adjustment.

IV. PID Function Application Method for Constant Pressure Water Supply

On a single-pump constant pressure water supply system, the YQ3000-F11 inverter from Yuqiang can achieve single-loop closed-loop pressure control via the PID function. Specific steps are as follows:

  1. Wiring:
    • Connect the output terminals of the pressure sensor (+10V, GND, and VF) to the corresponding control terminals of the inverter (e.g., AI1).
  2. Parameter Setting:
    • Set P006=7 to select AI1 as the PID feedback input channel.
    • Set P0902=0 to enable the PID function.
    • Set PID parameters (e.g., proportional gain P, integral time I, derivative time D) as needed to achieve stable pressure control.
    • Set the PID setpoint, which is the target pressure value. This is typically done by entering a specific numerical value in the inverter’s parameter settings.
  3. Debugging:
    • During initial debugging, the proportional gain P can be preset to an intermediate to large value or temporarily left at the factory default.
    • If the controlled physical quantity (i.e., pressure) oscillates near the target value, increase the integral time I. If oscillation persists, appropriately decrease the proportional gain P.
    • If the controlled physical quantity is difficult to recover after changing, increase the proportional gain P. If recovery is still slow, appropriately decrease the integral time I or increase the derivative time D.

V. Fault Code Meanings and Solutions

When using the YQ3000-F11 inverter from Yuqiang, various fault codes may be encountered. These codes are usually displayed on the inverter’s display screen to help users quickly locate issues. Below are some common fault codes and their solutions:

  1. OC (Overcurrent):
    • Cause: Excessive motor load, improper inverter parameter settings, etc.
    • Solution: Check motor load, adjust inverter parameters, optimize motor matching, etc.
  2. OV (Overvoltage):
    • Cause: Excessively high input voltage, internal inverter faults, etc.
    • Solution: Check input voltage stability, replace the inverter, etc.
  3. OL (Overload):
    • Cause: Motor overload, poor heat dissipation, etc.
    • Solution: Check motor load, improve heat dissipation conditions, etc.
  4. OH (Overheat):
    • Cause: Poor inverter heat dissipation, excessively high ambient temperature, etc.
    • Solution: Improve heat dissipation conditions, reduce ambient temperature, etc.

In conclusion, the YQ3000-F11 inverter from Yuqiang boasts powerful functions and a wide range of applications. Through reasonable parameter settings and wiring methods, precise motor speed adjustment and stable control of constant pressure water supply systems can be achieved. At the same time, familiarity with fault code meanings and solutions also aids users in better maintaining and using the inverter.

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KCINT Inverter KC280/KC300 Series User Guide and Realization Method of Constant Pressure Water Supply Control

I. KCINT Inverter KC280/KC300 Series User Guide

1. Terminal Panel Start and Speed Regulation Method

The KCINT Inverter KC280/KC300 series can be started and speed-regulated through the terminal panel. Specific operations are as follows:

KCINT IVERTER connects motor terminals
  • Wiring Instructions:
    • Connect the three-phase power supply to the R, S, T terminals of the inverter.
    • Connect the U, V, W terminals of the motor to the U, V, W output terminals of the inverter.
    • Connect the ground wire to the PE terminal of the inverter.
  • Parameter Settings:
    • Set P0.01 to 0 to select the keyboard command channel.
    • Set P0.03 to 0 to select the keyboard setting mode.
    • Set P0.07 to the desired operating frequency.
  • Operation Method:
    • Press the RUN button to start the inverter.
    • Hold the ▲ button to increase the output frequency of the inverter; hold the ▼ button to decrease the output frequency.
    • Press the STOP button to stop the inverter.
KCINT IVERTER connects the pressure sensor signal wire terminal

2. Terminal Forward/Reverse and External Potentiometer Speed Regulation Method

  • Wiring Instructions:
    • Connect the three-phase power supply to the R, S, T terminals of the inverter.
    • Connect the U, V, W terminals of the motor to the U, V, W output terminals of the inverter.
    • Connect the ground wire to the PE terminal of the inverter.
    • Connect the output terminal of the external potentiometer to the VI terminal of the inverter, and the common terminal to the GND terminal.
    • Connect the forward control terminal FWD-COM to the forward control signal, and the reverse control terminal REV-COM to the reverse control signal.
  • Parameter Settings:
    • Set P0.00 to 1 to select the input terminal control mode.
    • Set P0.01 to 1 to select the terminal command channel.
    • Set P0.03 to 1 to select the analog VI setting mode.
    • Set P5.07 to 0 to select the two-wire control mode.
  • Operation Method:
    • When only FWD-COM is closed, the motor rotates forward; when only REV-COM is closed, the motor rotates reverse; when both are closed or open, the motor decelerates and stops.
    • Adjust the external potentiometer to change the output frequency of the inverter, thereby achieving speed regulation.
KCINT IVERTER physical item

II. Closed-Loop PID Control Application in Constant Pressure Water Supply

1. Parameter Settings

  • Set P0.03 to 5 to select the PID control setting mode.
  • Set P0.13 to 3 to select the constant pressure water supply macro function.
  • Set P9.00 to 0 to select the keyboard preset PID setting.
  • Set P9.01 to the desired PID setpoint (relative value, 0~100%).
  • Set P9.02 to 0 to select the analog channel VI feedback.
  • Adjust PID parameters such as P9.04 (proportional gain), P9.05 (integral time), and P9.06 (derivative time) as needed to achieve the desired control effect.

2. Wiring Instructions

  • Connect the output terminal of the remote pressure gauge or 4-20mA pressure transmitter to the VI terminal of the inverter, and the common terminal to the GND terminal.
  • Correctly connect the power wire and signal wire according to the wiring requirements of the pressure gauge or transmitter.

3. Operation Method

  • After starting the inverter, adjust the PID setpoint (A value) through the panel’s up and down keys.
  • The system will automatically adjust the output frequency of the inverter based on the set PID parameters and feedback signals to maintain a constant water supply pressure.
KCINT IVERTER working pictures

III. Fault Code Analysis and Solutions

The KCINT Inverter KC280/KC300 series may display various fault codes during operation. The following are some common fault codes, their analyses, and solutions:

  • FL (Inverter Unit Fault):
    • Possible Causes: Too fast acceleration, internal IGBT damage, interference causing malfunctions, poor grounding, etc.
    • Solutions: Increase acceleration time, check and eliminate interference sources, check grounding, etc.
  • OC (Overcurrent Fault):
    • Possible Causes: Too fast acceleration or deceleration, large load inertia torque, low grid voltage, insufficient inverter power, etc.
    • Solutions: Increase acceleration or deceleration time, select a larger inverter, check grid voltage, etc.
  • OU (Overvoltage Fault):
    • Possible Causes: Abnormal input voltage, too fast deceleration, large load inertia, etc.
    • Solutions: Check the input power supply, increase the deceleration time, add suitable energy consumption braking components, etc.
  • LU (Bus Undervoltage Fault):
    • Possible Cause: Low grid voltage.
    • Solution: Check the grid input power supply.
  • OL (Overload Fault):
    • Possible Causes: Low grid voltage, incorrect motor rated current setting, motor stall or excessive load mutation, etc.
    • Solutions: Check the grid voltage, reset the motor rated current, check the load, etc.

When using the KCINT Inverter KC280/KC300 series, wiring and parameter settings should be strictly carried out according to the manual, and regular maintenance and servicing of the inverter should be performed to ensure its normal operation and extend its service life. At the same time, for fault codes that appear, the cause should be promptly analyzed and corresponding solutions taken to ensure the smooth progress of the production process.