Month: October 2024

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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.

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Fuji Inverter FRENIC 5000 G11S/P11S Series User Manual Guide

I. Operation Panel Function Introduction

The operation panel of the Fuji INVERTER FRENIC 5000 G11S/P11S series is the primary interface for user interaction with the frequency converter. It is equipped with a series of buttons and an LED display for setting parameters, monitoring operating status, and executing control operations.

Fuji FRENIC5000G11SP11S KEYPAD PANEL

1.1 Button Functions

  • FWD/REV Keys: Used to start the frequency converter, enabling the motor to rotate forwards or backwards.
  • STOP Key: Used to stop the frequency converter.
  • ∨ or ∨ Keys: In program mode, these keys are used to vertically move the cursor to select function codes or data.
  • FUNC DATA Key: In program mode, this key is used to store modified data or switch display screens.
  • RESET Key: In program mode, this key is used to cancel the current input data; in fault mode, it is used to release the fault stop status.
  • PRG Key: Used to switch between operation mode and program mode.
  • SHIFT Key (Column Shift): In program mode, when used in combination with the ∨ or ∨ keys, it moves the cursor horizontally.

1.2 Restoring Factory Default Parameter Settings

To restore factory default parameter settings, follow these steps:

  1. Press the PRG key to enter program mode.
  2. Use the ∨ or ∨ keys to select “1. DATA SET”.
  3. Press the FUNC DATA key to confirm the selection.
  4. Simultaneously press the STOP key and the ∨ key to change the parameter protection value from “1” to “0”, allowing parameter modifications.
  5. Again, use the ∨ or ∨ keys to select “F00 Data protection” and set its value to “0”.
  6. Press the FUNC DATA key to save the settings. The frequency converter will restart and restore the factory default parameters.

1.3 Setting and Clearing Passwords

The Fuji FRENIC G11S/P11S series provides password protection to restrict access to parameters. However, the specific methods for setting and clearing passwords are not detailed in the provided manual. Typically, such functions may require setting through specific parameter codes, and the unlocking process may involve the manufacturer or authorized service personnel. It is recommended to refer to Fuji’s official technical support documentation or contact the manufacturer for detailed guidance.

Fuji FRENIC5000 G11S/G9S Inverter wiring-diagraml

II. Terminal Start/Stop and Potentiometer Speed Regulation

2.1 Terminal Start/Stop

The Fuji FRENIC G11S/P11S series supports start/stop control via external terminals. To achieve this, relevant parameters need to be set correctly, and wiring must be done accordingly:

  • Parameter Setting: Set function code F02 to “1” to select external signal input mode.
  • Wiring: Connect the control power to terminals R0 and T0; connect the start signal (e.g., FWD) to the corresponding digital input terminal (e.g., X1); connect the stop signal to the REST terminal.

2.2 Potentiometer Speed Regulation

Potentiometer speed regulation is a method of changing the frequency output by adjusting the resistance value of an external potentiometer. The setup steps are as follows:

  • Parameter Setting: Set function code F01 to “1” to select voltage input mode.
  • Wiring: Connect the output terminal of the potentiometer to the frequency setting terminal of the frequency converter (e.g., terminal 12), and simultaneously ground the common terminal of the potentiometer (e.g., 0V terminal).

III. Frequency Converter Fault Code Analysis and Solutions

When the Fuji FRENIC G11S/P11S series encounters a fault, it will display the corresponding error code, helping users quickly locate the problem. The following are some common fault codes, their analyses, and solutions:

  • OC1: Overcurrent during acceleration. Possible causes include motor blockage, excessive load, or improper parameter settings. Solutions include checking the motor and load status, and adjusting acceleration time and current limit parameters.
  • OU: DC bus overvoltage. Possible causes include braking resistor failure, excessively short deceleration time, or abnormal supply voltage. Solutions include checking the braking resistor and wiring, and adjusting deceleration time and voltage limit parameters.
  • OL: Electronic thermal relay overload. Possible causes include motor overload, poor heat dissipation, or improper parameter settings. Solutions include checking the motor load and heat dissipation conditions, and adjusting the overload protection parameters.
  • Er1: Memory error. Possible causes include internal frequency converter faults or program abnormalities. Solutions include restarting the frequency converter; if the problem persists, contact the manufacturer for repair.

Summary

The Fuji Inverter FRENIC 5000 G11S/P11S series user manual provides detailed operation guides and parameter setting instructions, helping users fully utilize the various functions of the frequency converter. Through this guide, users can understand the functions of the operation panel, the method for restoring factory default parameter settings, the setup steps for terminal start/stop and potentiometer speed regulation, as well as the analysis and solutions for common fault codes. This information is crucial for ensuring the normal operation and efficient use of the frequency converter.

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Operation Guide for Yaskawa Inverter H1000 Series User Manual

I. Operation Panel Function Introduction and Usage Instructions

The operation panel of the Yaskawa Inverter H1000 series serves as its control hub, enabling parameter setting, monitoring of operating status, and fault diagnosis. The primary buttons and functions on the operation panel include:

Function diagram of Yaskawa INVERTER H1000 operation panel
  • ESC: Exits the current mode or cancels operations.
  • RUN: Starts the inverter.
  • STOP: Stops the inverter.
  • ENTER: Confirms inputs or enters parameter settings.
  • RESET: Resets faults.
  • ALM: Displays fault or warning messages.
  • DIGIT: Selects digits during parameter setting.
  • OPRATOR: The operation panel display, which shows various information and parameters.

Parameter Initialization

Parameter initialization restores the inverter’s settings to the factory defaults. The steps are as follows:

  1. Enter Initialization Mode: Press the “ESC” button on the operation panel, then press “ENTER” to enter the parameter setting mode.
  2. Select Initialization Parameter: Use the “DIGIT” buttons to select parameter “A1-03” and press “ENTER”.
  3. Set Initialization Value: Set the value of “A1-03” to “2220” or “3330” for initialization of 2-wire or 3-wire sequential control, respectively.
  4. Confirm and Save: Press “ENTER” to confirm the setting, and the inverter will automatically restart and complete the initialization.

Setting and Resetting Passwords

To protect the inverter settings from unauthorized changes, passwords can be set. The steps are as follows:

  1. Enter Password Setting Mode: In the parameter setting mode, select “A1-04” and press “ENTER”.
  2. Enter Password: Use the “DIGIT” buttons to input a 4-digit password and press “ENTER” to confirm.
  3. Confirm Password: Enter the same password again to confirm the setting and press “ENTER”.

To reset the password, simply enter the correct password in the password input interface to unlock the parameter settings.

Wiring diagram of Yaskawa INVERTER H1000 series control circuit

II. Terminal Start/Stop and External Potentiometer Speed Adjustment

To achieve terminal start/stop and external potentiometer speed adjustment, the corresponding control terminals need to be connected and parameters set accordingly.

Wiring Instructions

  1. Start/Stop Terminals: Typically, use terminals S1 (Run) and S2 (Stop). Closing (connecting) terminal S1 starts the inverter, while closing terminal S2 stops it.
  2. External Potentiometer: Use terminal A1 as the input terminal for the external potentiometer. Connect the potentiometer’s output to terminal A1 and adjust the potentiometer to change the frequency command.

Parameter Settings

  1. Run Command Selection: Set parameter “b1-01” to “10” to select the operation panel as the frequency command source.
  2. Multi-function Input Settings: Set parameter “H1-01” to “04” (Run command) and “H1-02” to “05” (Stop command), corresponding to the functions of terminals S1 and S2, respectively.
  3. Analog Input Gain and Offset: Adjust parameters “H3-03” (Gain) and “H3-04” (Offset) according to the output range of the external potentiometer to ensure that the frequency command changes proportionally with the potentiometer output.

III. Crane Control Wiring and Parameter Setup

In crane applications, special attention must be paid to safety control and precise speed regulation.

Wiring Instructions

  1. Main Circuit Wiring: Connect the inverter’s R/L1, S/L2, and T/L3 terminals to the crane motor according to its voltage and power requirements.
  2. Control Circuit Wiring: In addition to the basic start/stop terminals, emergency stop, limit switches, and other safety control terminals also need to be connected.
  3. PG (Encoder) Wiring: For cranes requiring precise speed control and positioning, connect the PG encoder and output its signals to the inverter’s PG option card.

Parameter Settings

  1. Control Mode Selection: Set parameter “A1-02” to the appropriate vector control mode (e.g., Vector Control with PG) to ensure precise speed and position control.
  2. PG Parameter Settings: Set parameters such as “F1-06” (PG Output Division Ratio) and “F1-12/F1-13” (PG Gear Ratio) according to the encoder specifications.
  3. Safety Function Settings: Enable the external emergency stop function and set the relevant parameter, such as “H2-01” (Multi-function Contact Output Selection), to output an emergency stop signal.
  4. Speed Search Function: For heavy-duty applications like cranes, it is recommended to enable the speed search function to improve stability and safety during startup. Set parameter “b3-01” to effective and adjust other related parameters as needed.

IV. Fault Code Meanings and Solutions

The Yaskawa Inverter H1000 series has comprehensive fault self-diagnosis functions. When a fault occurs, the operation panel will display the corresponding fault code. Below are the meanings of some common fault codes and their solutions:

  • CPF00/CPF01: Control circuit fault. Possible causes include incorrect control circuit wiring or damaged circuit boards. The solution is to check the control circuit wiring and replace the circuit board if necessary.
  • oH: Overheating of the heatsink. Possible causes are high ambient temperature, excessive load, or a faulty cooling fan. The solution is to improve ventilation, reduce the load, or replace the cooling fan.
  • Uv: Undervoltage in the main circuit. Possible causes are low supply voltage or phase loss in the power supply. The solution is to check the supply voltage and wiring to ensure they are normal.
  • oL1: Motor overload. Possible causes are excessive load or improper motor parameter settings. The solution is to reduce the load or reset the motor parameters.

When a fault occurs in the inverter, first check the fault code displayed on the operation panel to identify the cause and follow the corresponding solution. If the issue cannot be resolved, promptly contact a professional technician for repairs.

Through this operation guide, users can better understand and operate the Yaskawa Inverter H1000 series, ensuring its stable operation in various applications.

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User Manual Guide for INVT INVERTER Goodrive 10 (GD10) Series

I. Function Introduction of VFD Operation Panel (Keyboard)

The operation panel (keyboard) of the INVT Goodrive 10 series INVERTER serves as the primary interface for user interaction. This keyboard is highly functional, capable of performing basic operations, status monitoring, and parameter settings on the INVERTER. Here are some key functions:

Function diagram of the operation panel of the NVIDIA GD10 Inverter
  1. Status Indicators:
    • RUN/TUNE: Indicates whether the INVERTER is running.
    • FWD/REV: Indicates the forward or reverse rotation status of the motor.
    • LOCAL/REMOT: Indicates the current control mode (local keyboard control or remote communication control).
    • TRIP: Indicates whether the INVERTER is in a fault state.
  2. Digital Display Area: A 5-digit LED display for showing set frequencies, output frequencies, currents, voltages, and various monitoring data and alarm codes.
  3. Operation Buttons:
    • PRG/ESC: Programming key for entering or exiting the parameter setting menu.
    • DATA/ENT: Confirmation key for validating parameter settings or entering the next menu level.
    • UP/DOWN: Increment/decrement keys for adjusting parameter values.
    • SHIFT: Right shift key for selecting different modification bits during parameter setting.
    • RUN/STOP/RST: Run/Stop/Reset keys for controlling the start, stop, and fault reset of the INVERTER.
    • QUICK/JOG: Quick multifunction key, whose function is set by parameter P07.02 and can include jogging, display state switching, etc.
Control Circuit and Terminal Wiring Diagram of AD10 Inverter from Envision

II. Methods for Setting and Deleting Passwords on the INVERTER

  1. Setting a Password:
    • Enter the parameter setting menu (press PRG/ESC). Locate parameter P07.00 and set it to a non-zero value, which will serve as the user password. After exiting the parameter setting menu, password protection will be activated.
  2. Deleting a Password:
    • Set parameter P07.00 to 0 to disable password protection. Note that password deletion must be performed without password protection in place.

III. Steps to Restore the INVERTER to Factory Defaults

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

  1. Enter the parameter setting menu (press PRG/ESC).
  2. Locate parameter P00.18 and set it to 1 (restore default values). The INVERTER will begin restoring default parameters, which may take a few seconds.
  3. After restoration, parameter P00.18 automatically reverts to 0. At this point, the INVERTER has been restored to its factory settings.

IV. Specific Steps for Terminal Start/Stop and External Potentiometer Speed Adjustment

Wiring Steps:

  1. Start/Stop Terminal Wiring:
    • Connect the start signal from the external control circuit to the S1 terminal of the INVERTER and the stop signal to the S2 terminal.
    • Ensure that the control circuit power matches the INVERTER’s control power.
  2. External Potentiometer Wiring:
    • Connect the output end of the potentiometer to the AI1 terminal (analog input terminal) of the INVERTER.
    • Connect the power end of the potentiometer to an appropriate power source, typically a 10V DC power supply.

Parameter Setting Steps:

  1. Set the Run Command Channel:
    • Enter the parameter setting menu and locate parameter P00.01. Set it to 1 (terminal run command channel).
  2. Set the Analog Input Function:
    • Locate parameter P00.06 and set it to 1 (keyboard analog AI1 setting). This way, the frequency of the INVERTER will be determined by the analog input from the AI1 terminal.
  3. Adjust Other Related Parameters (if necessary):
    • Adjust acceleration time, deceleration time, maximum output frequency, and other parameters based on actual application requirements to achieve optimal control performance.

V. Analysis and Solution of INVERTER Fault Codes

The Goodrive 10 series INVERTER features comprehensive fault protection functions, capable of monitoring the INVERTER’s operating status in real-time and providing fault codes when issues arise. Here are some common fault codes and their solutions:

  1. OV1 (Acceleration Overvoltage):
    • Possible Causes: Excessively high input voltage; too short deceleration time.
    • Solutions: Check if the input voltage is normal; increase the deceleration time as needed.
  2. OC1 (Acceleration Overcurrent):
    • Possible Causes: Excessive load; low grid voltage.
    • Solutions: Check if the load exceeds the INVERTER’s rated load; check if the grid voltage is normal.
  3. UV (Bus Undervoltage Fault):
    • Possible Causes: Low grid voltage; input power phase loss.
    • Solutions: Check if the grid voltage is normal; check for input power phase loss.
  4. OH2 (Inverter Module Overheat Fault):
    • Possible Causes: High ambient temperature; poor heat dissipation.
    • Solutions: Improve the INVERTER’s heat dissipation conditions; reduce the ambient temperature.

When the INVERTER encounters a fault, users should first refer to the fault code to identify possible causes and apply the corresponding solutions. If the problem persists, contact INVT’s technical support for assistance.

VI. Conclusion

The user manual for the INVT Goodrive 10 series INVERTER serves as an essential reference for users to operate and maintain the INVERTER. This document provides detailed information on the INVERTER’s operation panel functions, password setting and deletion, steps to restore factory defaults, specific procedures for terminal start/stop and external potentiometer speed adjustment, as well as fault code analysis and solutions. We hope this content will help users better utilize and maintain the Goodrive 10 series INVERTER.

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What Does “LL” Fault Mean on Eura Drives E800 Series Inverter, and How to Solve It?

Introduction

The E800 series of Eura Drives inverters is a widely used device in the field of industrial control, with its stability and reliability being crucial to users’ production activities. However, in practical applications, users may encounter various faults and issues, among which the “LL” fault displayed upon power-up is a particularly perplexing one.

The label of Eura Drives E800 Inverter

The Meaning of “LL” Fault

Upon power-up, if the E800 series inverter of Eura Drives displays the “LL” fault code and cannot be reset by pressing any buttons, it typically indicates a specific issue with the inverter. Unfortunately, the user manual may not explicitly state the meaning of the “LL” fault code. However, within the communication section, under the explanation of communication address meanings, the operational status parameter address 1005 mentions the inverter status: “OXOC (LL)”.

Despite the brief mention, there is no further elaboration on the “LL” fault code in the manual. Nevertheless, based on our experience and understanding of inverter fault codes, the “LL” fault on Eura Drives E800 series inverters generally indicates a low voltage fault. This means that the input voltage to the inverter is below the acceptable range, causing the inverter to malfunction and display the “LL” fault code.

Physical image of Eura Drives inverter displaying LL fault

Solutions to the “LL” Fault

To resolve the “LL” fault on Eura Drives E800 series inverters, the following steps can be taken:

  1. Check the Input Voltage:
    • Verify that the input voltage supplied to the inverter is within the specified range. For the E800 series, the input voltage range is typically three-phase 380V to 480V (with a tolerance of +10% to -15%) or single-phase 220V to 240V (with a tolerance of ±15%).
    • Use a voltmeter to measure the voltage at the inverter’s input terminals.
  2. Inspect the Power Supply:
    • Ensure that the power supply is stable and reliable. Check for any potential issues such as voltage fluctuations, surges, or drops that may affect the input voltage to the inverter.
  3. Review the Wiring:
    • Examine the wiring between the power source and the inverter to ensure that it is correct and free from any damage or loose connections.
  4. Check the Fuse and Circuit Breaker:
    • Verify that the fuse or circuit breaker protecting the inverter’s power supply circuit is not blown or tripped. Replace it if necessary.
  5. Consult the Manual and Technical Support:
    • If the issue persists after checking the above points, refer to the user manual for additional troubleshooting steps or contact Eura Drives’ technical support for assistance.
  6. Reset the Inverter:
    • Once the issue with the input voltage has been resolved, try resetting the inverter by pressing the reset button or cycling the power to see if the “LL” fault code clears.

Conclusion

The “LL” fault on Eura Drives E800 series inverters is generally indicative of a low voltage issue. By carefully checking the input voltage, power supply, wiring, fuse, and circuit breaker, and taking appropriate corrective actions, users can often resolve this fault and restore normal operation of the inverter. If the problem persists, seeking assistance from the manufacturer’s technical support is recommended.

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HARS VFD HS710 Series User Manual Usage Guide

I. Introduction to VFD Operation Panel Functions

The HARS VFD HS710 series features a comprehensive and user-friendly operation panel. The panel primarily includes the following keys and indicators:

  • PRG Programming Key: Used to enter or exit the menu for parameter modifications.
  • ENTER Confirmation Key: Confirms parameter settings or enters the menu.
  • ▲ Increment Key and ▼ Decrement Key: Used to increment or decrement data or function codes.
  • Shift Key: Selects the parameter modification bit and display content.
  • RUN Operation Key: Starts the VFD in keyboard operation mode.
  • STOP/RESET Stop/Reset Key: Stops VFD operation or resets faults.
  • FUNC Multi-function Quick Key: Switches functions according to needs.
HS710 Haishang Inverter Operation Panel Function Diagram

Setting Passwords and Restoring Factory Defaults

  1. Setting Passwords:
    • Enter the parameter setting interface (press the PRG key).
    • Use the increment and decrement keys to select FE.29 (User Password) and press the ENTER key to enter.
    • Use the numeric keys to enter the password value (0–65535) and press the ENTER key to confirm. The password setting will take effect after a 3-minute delay.
  2. Restoring Factory Defaults:
    • Enter the parameter setting interface.
    • Select F7.12 (Parameter Initialization) and press the ENTER key to enter.
    • Use the increment key to select “2: Restore all user parameters to factory settings” and press the ENTER key to confirm. After the operation is complete, the parameters will automatically be restored to their factory default values, and F7.12 will automatically reset to 0.

II. Terminal Start/Stop and External Potentiometer Speed Regulation Wiring

Wiring Steps

  1. Power Wiring:
    • Connect the three-phase power supply to the R, S, T terminals of the VFD, ensuring the power supply matches the VFD.
    • Install an air circuit breaker (NPB) between the power supply and input terminals to protect the circuit.
  2. Motor Wiring:
    • Connect the U, V, W terminals of the motor to the corresponding U, V, W terminals of the VFD.
    • Ensure the motor is properly grounded by connecting the E terminal of the VFD to the motor housing.
  3. Start/Stop Wiring:
    • Connect the positive power supply (+24V) of the control circuit to the +24V terminal of the VFD.
    • Connect one end of the external start button to the +24V terminal and the other end to the X1 terminal (Forward Operation).
    • Connect one end of the external stop button to the COM terminal and the other end to the X1 terminal (Forward Operation) or another stop function terminal as configured.
  4. External Potentiometer Speed Regulation Wiring:
    • Connect the center tap of the external potentiometer to the GND terminal of the VFD.
    • Connect one end of the potentiometer to the +10V terminal.
    • Connect the other end of the potentiometer to the AI1 terminal (Analog Input 1) to receive the speed control signal.

Parameter Settings

  1. Operation Command Channel Selection:
    • Enter the parameter setting interface.
    • Select F0.02 (Operation Command Channel Selection) and set it to “1: Terminal Operation Command Channel”.
  2. Analog Input Settings:
    • Select F4.13 (AI1 Input Lower Limit) and F4.15 (AI1 Input Upper Limit) and set appropriate values according to the output range of the potentiometer.
    • Select F4.14 (AI1 Lower Limit Corresponding Physical Quantity Setting) and F4.16 (AI1 Upper Limit Corresponding Physical Quantity Setting) and set them to “Speed Command” so that the potentiometer can control the output frequency.
  3. Frequency Source Selection:
    • Select F0.03 (Main Frequency Source A Selection) and set it to “2: AI1 Analog Given”.
Wiring Diagram for HS710 Haishang Inverter

III. Fault Code Analysis and Troubleshooting

The HARS VFD HS710 series may display various fault codes during operation. Below is an analysis and troubleshooting guide for some common fault codes:

  1. E-01: Overcurrent During Acceleration
    • Possible Causes: Too short acceleration time, overloaded load, improperly set V/F curve.
    • Solutions: Extend the acceleration time, check for abnormal loads, adjust the V/F curve.
  2. E-02: Overcurrent During Deceleration
    • Possible Causes: Too short deceleration time, excessive load inertia.
    • Solutions: Extend the deceleration time, connect an external braking resistor or braking unit.
  3. E-08: Motor Overload
    • Possible Causes: Improperly set V/F curve or torque boost, low grid voltage, overloaded load.
    • Solutions: Adjust the V/F curve and torque boost, check the grid voltage, reduce the load, or select a VFD with a higher power rating.
  4. E-12: Input Phase Loss
    • Possible Cause: Missing phase in the power input.
    • Solution: Check the power supply and wiring to ensure a normal three-phase power supply.
  5. E-13: Output Phase Loss or Current Imbalance
    • Possible Cause: Missing phase in output U, V, W.
    • Solution: Check the output wiring to ensure correct motor connections.

By carefully reading the user manual and following the above guide, users can effectively operate and maintain the HARS VFD HS710 series, ensuring the normal operation of the equipment and extending its service life.

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Operation Guide for MICOVERT 2003 Series Inverter User Manual from Michael

  1. Operation Methods for Basic Menus
    The operation of the MICOVERT 2003 series inverter from Michael is primarily completed through the Handheld Programmer HPG60. The HPG60 is equipped with an LCD display capable of showing 4 lines of text, 6 buttons, and a red LED indicator. Below are the operation methods for the basic menus:
Michael INVERTER MICOVERT 2003 series operation panel

1.1 Entering Menus
Selecting Main Menu: Use the “LEFT” or “RIGHT” buttons to choose from 8 main menus, such as “Speed”, “Speed Curve”, “Start/Stop”, etc.
Entering Submenu: Press the “DOWN” button to enter the submenu of the selected main menu.
Selecting Parameters: In the submenu, use the “DOWN” or “UP” buttons to scroll through and select parameters.

1.2 Setting Parameters
Changing Parameter Values: Use the red “UP” or “DOWN” buttons to select new parameter values.
Saving or Exiting: If the parameter change is correct, press the “ENTER” key to save the new value; if you need to discard the change, press the “ESC” key to exit.

1.3 Start/Stop Menu Settings
The Start/Stop menu is used to set parameters related to the start and stop of the inverter, such as start delay and braking ramp.

Start Delay: Adjusts the time for the motor to start with the brake on to avoid abnormalities caused by delays in contactor and control system actions. The setting range is 0-1000ms.
Braking Ramp: Adjusts the deceleration ramp from V0 speed to zero speed to improve stopping accuracy and reduce vibration. The setting range is 0.01-1.00 m/s².

1.4 Speed Menu Settings
The speed menu is used to set various operating speeds of the inverter, including re-leveling speed, inspection speed, creep speed, medium speed, and high speed.

Re-leveling Speed (Vn): The setting range is 0.5-100 r.p.m., used for re-leveling due to position changes caused by wire rope elongation after elevator unloading.
Inspection Speed (Vi): The setting range is 10-1500 r.p.m., used for inspection operation on the car roof.
Creep Speed (V0): The setting range is 1-100 r.p.m., used for deceleration before elevator stopping.
Medium Speed (V1), High Speed (V2/V3): The setting range is 10-3000 r.p.m., used for elevator operation at different speed segments.

Terminal diagram of the Michael INVERTER MICOVERT 2003 series
  1. Input and Output of Control Signals
    2.1 Input of Control Signals
    The input of control signals is mainly achieved through various signal terminals on the inverter. Below are the functions and setting methods of some key signal terminals:

Direction Signals: Include “UP” (up direction) and “DOWN” (down direction) signal terminals. When starting the inverter, direction commands and operation commands need to be given simultaneously.
Inspection Speed Signal (Vinsp): Used to set the inspection speed. When operating at inspection speed, the operation command and direction command need to be withdrawn simultaneously.
Speed Signals (V0, V1, V2, V3): Used to set creep speed, medium speed, and high speed respectively.

2.2 Output of Control Signals
The inverter is equipped with multiple output relays for controlling different functions of the elevator. Below are the functions of some key output relays:

Ready Relay: Engages after the inverter completes its self-check, used for elevator control warning.
Brake Relay: Engages 0.5 seconds after the direction command and speed command are given, causing the mechanical brake contactor to engage.
Operation Relay: Engages when the direction command and speed command are given, and releases 0.5 seconds after the motor reaches zero speed.

  1. Multi-Speed Operation
    The MICOVERT 2003 inverter supports multi-speed operation. By setting different speed parameters (V0, V1, V2, V3), smooth acceleration and deceleration of the elevator at different stages can be achieved. For example, use lower speeds (V0 or V1) during the elevator start-up phase, higher speeds (V2 or V3) during the stable operation phase, and decelerate to creep speed (V0) again during the stopping phase.
  2. Encoder Interface and Settings
    The MICOVERT 2003 inverter supports various encoder interfaces, including HTL level encoder, TTL level encoder, Resolver interface, absolute encoder, etc. Below are the basic steps for encoder wiring and settings:

4.1 HTL Level Encoder
Wiring: Connect the A phase, B phase, +15VDC, 0VDC, and shield wire of the encoder to the corresponding terminals of the inverter.
Setting: In the drive menu, select the encoder type as “HTL” and enter the number of pulses per revolution.

4.2 TTL Level Encoder
Wiring: Connect the A phase, B phase, +5VDC, 0VDC, and shield wire of the encoder to the corresponding terminals of the inverter.
Setting: In the drive menu, select the encoder type as “TTL” and enter the number of pulses per revolution.

4.3 Resolver Interface
Wiring: Use the dedicated conversion board RES01 to connect the output signals (SINUS and COSINUS) of the Resolver to the conversion board, and then connect the conversion board to the corresponding terminals of the inverter.
Setting: In the drive menu, select the encoder type as “Resolver” and enter the relevant parameters.

4.4 Absolute Encoder
Wiring: Use the dedicated absolute conversion board ABS01 to connect the output signals of the absolute encoder to the conversion board, and then connect the conversion board to the corresponding terminals of the inverter.
Setting: In the drive menu, select the encoder type as the corresponding absolute encoder type (e.g., SSI, ENDAT), and enter the relevant parameters.

Wiring diagram for the MICOVERT 2003 series inverter by Michael
  1. Fault Code Identification and Solutions
    When the inverter malfunctions, the LCD display will show the corresponding error code. Users need to take appropriate solutions based on the error code. Below are some common fault codes and their handling methods:

Error 1 (IPM Overcurrent): Check if the motor parameters are correct or if the IPM module is damaged.
Errors 2-4 (U/V/W Phase Overcurrent): Similarly, check the motor parameters or IPM module.
Error 5 (Heat Sink Overtemperature): Check if the cooling system is working normally or reduce the load.
Error 6 (Intermediate Circuit Voltage Too High): Check if the braking resistor is connected normally or damaged.
Error 7 (Intermediate Circuit Voltage Too Low): Check if the main power supply voltage is too low.
Errors 8-9 (Operation Contactor Not Engaged or Main Power Supply Missing a Phase): Check if the contactor or main power supply connection is normal.
Errors 10-16: Involve issues such as missing direction commands, conflicting direction commands, no pulse signal from the encoder, etc. Check the relevant signals and wiring according to the specific situation.

By carefully reading and following the above instructions, users can better operate and maintain the MICOVERT 2003 series inverter from Micor, ensuring its stable operation and efficient performance.

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Operation Guide for Hpmont HD20 Series Inverter User Manual

I. Introduction to Inverter Operation Panel Functions
1.1 Function of Operation Panel Buttons
The operation panel of the Hpmont HD20 series inverter is equipped with multiple buttons and indicators for controlling the inverter and displaying its status. The main button functions are as follows:

Function Description Diagram of HPMONT VFD HD20 Operation Panel

****: Enter or exit programming mode.
****: When controlled via the operation panel, jog start the inverter.
****: When controlled via the operation panel, start the inverter.
****: When controlled via the operation panel, stop the inverter or perform fault reset.
****: Increment the functional parameter or parameter setting value.
****: Decrement the functional parameter or parameter setting value.
****: Select the modification digit of the set data or cyclically switch the display state parameters between stop/run.
****: Enter the submenu or confirm and save the settings.

1.2 Password Function Setting and Unlocking
To prevent unauthorized modifications, the inverter has a user password protection function. The following are the steps for setting, unlocking, and modifying the password:

Password Setting
Press ** to enter programming mode.
Use and to select parameter F01.00.
Press ** to enter password setting mode, and use and to input the desired password value (00000-65535).
After inputting, press ** to confirm and save, then exit programming mode.

Password Unlocking
If prompted to enter a password during operation panel use, press ** to enter password entry mode.
Use and to input the previously set password.
After inputting, press ** to confirm. If the password is correct, unlocking is successful, and operation can continue.

Password Modification
Press ** to enter programming mode.
Use and to select parameter F01.00.
Press ** to enter password modification mode, and use and to input the new password value.
After inputting, press ** to confirm and save, then exit programming mode.

II. Terminal Start/Stop and External Potentiometer Speed Adjustment Methods
2.1 Terminal Start/Stop Wiring and Parameter Setting
Wiring Method
Forward control terminal (DI1): Connect the forward start signal.
Reverse control terminal (DI2): Connect the reverse start signal.
Common terminal (COM): Connect to the other end of DI1 and DI2.

Parameter Setting
Enter programming mode, set parameter F15.00 to 2 (forward function).
Set parameter F15.01 to 3 (reverse function).
Set other relevant parameters as needed, such as setting F00.11 to 1 (terminal operation command channel).

2.2 External Potentiometer Speed Adjustment Wiring and Parameter Setting
Wiring Method
Connect terminal 1 of the external potentiometer to the +10V terminal of the inverter.
Connect terminal 2 of the external potentiometer to the AI1 terminal of the inverter.
Connect terminal 3 of the external potentiometer to the GND terminal of the inverter.

Parameter Setting
Enter programming mode, set parameter F16.01 to 2 (frequency setting channel).
Adjust F16.05 (AI1 offset) and F16.06 (AI1 gain) as needed to calibrate the speed adjustment range.
Ensure F00.10 is set to 3 (analog setting) to use the external potentiometer for speed adjustment.

HPMONT VFD HD20 series control circuit wiring diagram

III. Analysis and Solutions for Inverter Fault Codes
3.1 Common Fault Codes and Causes
E0001: Overcurrent protection. Possible causes include motor stall, excessive load, or incorrect parameter settings.
E0007: Overvoltage speed loss. Possible causes include excessively short deceleration time settings or excessive load inertia.
E0015: Input phase loss. Possible causes include input power phase loss or loose wiring.
E0016: Output phase loss. Possible causes include motor or cable damage.
E0017: Inverter overload. Possible causes include excessive load or poor heat dissipation.

3.2 Solutions
E0001: Check if the motor and load are normal, adjust parameters F09.07 (motor torque boost) and F09.09 (motor slip compensation gain).
E0007: Increase deceleration time, adjust parameters F19.18 (overvoltage speed loss function selection) and F19.19 (overvoltage speed loss point).
E0015: Check the input power supply and wiring to ensure normal three-phase power.
E0016: Check motor and cable connections to ensure no damage or looseness.
E0017: Check if the load is excessive, improve heat dissipation conditions, adjust parameters F20.01 (overload pre-alarm detection level) and F20.02 (overload pre-alarm detection time).

Summary
This operation guide provides a detailed introduction to the functions of the operation panel, wiring and parameter settings for terminal start/stop and external potentiometer speed adjustment methods, as well as analysis and solutions for common fault codes of the Hpmont HD20 series inverter. By following this guide, users can smoothly operate and maintain the inverter, ensuring normal equipment operation. During operation, please ensure safety and avoid electric shock and other potential risks. For complex issues, please contact Longi electrical technicians for assistance.

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User Manual for Invt GD300-01A-RT Series VFD Dedicated for Air Compressors – Usage Guide

This guide aims to assist users in better understanding and utilizing the Invt GD300-01A-RT Series VFD, a single frequency converter specifically designed for air compressor control, featuring efficiency, ease of use, and reliability. Below is a detailed usage guide.

GD300-01A-RT menu interface diagram

I. Operating Methods for Controlling Air Compressors

  1. Wiring Method
    Main Circuit Wiring:
    Connect the power input terminals (R, S, T or L1, L2, L3) to the electrical grid.
    Connect the motor output terminals (U, V, W) to the main motor of the air compressor.
    The grounding terminal PE must be grounded with a grounding resistance of less than 10Ω.
    Control Circuit Wiring:
    Connect signal lines, such as pressure sensors and temperature sensors, to the corresponding input terminals (e.g., P1+, P1-) as per actual requirements.
    Connect external control signals (e.g., start, stop, load, unload) to the respective input terminals (e.g., S1, S2, S3).
    If needed, connect fault outputs, alarm outputs, etc., to external devices.
  2. Parameter Settings
    Motor Parameter Settings:
    Enter the “Main Unit Parameter Settings” interface and set parameters such as motor type, rated power, rated frequency, rated voltage, and rated current based on the actual motor nameplate parameters.
    Perform motor parameter self-learning to ensure the VFD can accurately control the motor.
    Air Compressor-Specific Parameter Settings:
    Set the range and calibration points for pressure sensors and temperature sensors.
    Set parameters such as loading pressure, unloading pressure, no-load operating frequency, and minimum loading operating frequency to suit the operational needs of the air compressor.
    Set parameters such as fan control mode and maintenance timeout as required.
GD300-01A-RT Control Circuit Wiring Diagram

II. Using External Terminals for Starting and External Potentiometer for Frequency Adjustment

  1. Wiring Method
    External Start Terminal Wiring:
    Connect the external start signal (e.g., push-button switch) to the S1 terminal (forward start) and the COM terminal.
    For reverse start, connect the signal to the S2 terminal.
    External Potentiometer Wiring:
    Connect the center tap of the external potentiometer to the AI1 terminal (analog input 1).
    Connect the other two terminals of the potentiometer to +10V and GND terminals to provide the required power supply voltage for the potentiometer.
  2. Parameter Settings
    Operation Command Channel Settings:
    Enter the “Basic Function Group” parameter settings and set P00.01 to 1 (terminal operation command channel).
    Frequency Command Selection:
    Set P00.06 to 1 (analog P1-setting) to enable external potentiometer frequency adjustment.
GD300-01A-RT system wiring diagram

III. Setting Password Function and Restoring Factory Settings

  1. Setting Password Function
    Enter the “Human-Machine Interface Group” parameter settings and locate the P07.00 (user password) parameter.
    Enter the desired password value (0~65535) and save the settings.
    After setting the password, the correct password must be entered for parameter modification.
  2. Restoring Factory Settings
    Enter the “Basic Function Group” parameter settings and locate the P00.18 parameter.
    Set P00.18 to 1 (restore default values) and save the settings.
    The VFD will automatically restore to the factory default parameter settings.

IV. Fault Analysis and Handling Methods

  1. Fault Code Query
    When a fault occurs in the VFD, first check the fault code on the VFD panel.
    Refer to the “VFD Faults and Countermeasures” section in the manual based on the fault code to find possible fault causes and corrective actions.
  2. Fault Troubleshooting Steps
    Check the power supply and wiring: Ensure normal power input and secure wiring.
    Check external control signals: Ensure normal input of external control signals (e.g., start, stop, load, unload).
    Check sensor signals: Ensure normal input of signals from pressure sensors, temperature sensors, etc., and correct range and calibration point settings.
    Check the motor and load: Ensure normal motor operation and no abnormalities in the load.
  3. Fault Handling Examples
    Overcurrent Fault (OC1, OC2, OC3):
    Check if the grid voltage is too low.
    Check for short circuits or locked rotor phenomena in the motor and load.
    Increase the acceleration/deceleration time or select a VFD with a higher power.
    Overvoltage Fault (OV1, OV2, OV3):
    Check if the input power voltage is too high.
    Check for energy feedback phenomena and add energy consumption braking components if necessary.
    Undervoltage Fault (UV):
    Check if the grid voltage is too low or fluctuating significantly.

By following this usage guide, users can better grasp the operation of the Invt GD300-01A-RT Series VFD dedicated for air compressors, ensuring stable operation of the air compressor system.