Category: Industrial control technology

Debugging, application, and maintenance techniques for industrial control products，Such as Variable speed driver(VSD),Variable frequency driver(VFD),Industrial touch screen,Programmable Logic Controller(PLC),Servo Driver,servo motor,servo amplifier,Servo Controller,etc.

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

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

1. Panel Function Introduction

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

LC630 inverter

2. Initialization and Password Setting

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

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

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

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

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

3. Setting Panel Start and Panel Potentiometer Speed Adjustment

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

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

II. Method for Achieving Constant Pressure Water Supply Control

1. Introduction to PID Function

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

2. Parameter Setting

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

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

3. Notes

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

III. Troubleshooting for Err23

1. Fault Mechanism Analysis

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

2. Fault Handling Method

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

  • Disconnect the inverter’s power supply to ensure safe operation.
  • Use an insulation resistance tester to test the insulation of the cables and motor. Check the insulation resistance between each phase of the cable and ground, as well as the insulation resistance of the motor windings, to ensure they meet the requirements. If the insulation resistance value is too low, it indicates insulation failure.
  • For cables, replace them with new ones that match the specifications of the original cables. During replacement, ensure the integrity and insulation performance of the cables to avoid new damage during wiring.
  • For the motor, if the insulation failure is severe, the entire motor may need to be replaced. When replacing the motor, ensure that the specifications and performance of the new motor match those of the original motor to meet the operational requirements of the inverter.
  • If the Err23 fault code persists after replacing the cables or motor, it may be necessary to consider replacing the entire unit. This typically indicates that there may be other faults within the inverter causing the ground short circuit issue.
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Fault Analysis and Handling for Inverter Displaying “88888” upon Power-up, with All Indicators Lit and No Response to Any Button Press

In inverter maintenance, it is common to encounter a situation where upon power-up, the inverter displays “88888”, all indicators are lit, and pressing any button results in no response. This fault typically indicates the following possibilities:

INDVS inverter shows 88888
  1. Power Issues: For example, voltage fluctuations or instability may prevent the inverter from completing its initialization process.
  2. Hardware Faults: Components such as the control board, drive board, or power supply may be damaged or malfunctioning.
  3. Communication Problems: Interruptions or errors in communication between the inverter and other devices may cause abnormal displays.
  4. Software or Firmware Issues: There may be bugs or incompatibilities in the inverter’s software or firmware that need to be addressed.

To troubleshoot this issue, the following steps can be taken:

Inovance inverter shows 88888
  1. Check Power Supply: Ensure that the voltage is stable and within the operating range specified by the inverter.
  2. Inspect Hardware: Open the inverter’s casing and inspect the control board, drive board, and power supply for any signs of damage or malfunction. Replace any faulty components as necessary.
  3. Test Communication: Verify that the communication lines between the inverter and other devices are properly connected and free from interference.
  4. Update Software/Firmware: If suspected, try updating the inverter’s software or firmware to the latest version.
  5. Reset the Inverter: Perform a hard reset of the inverter to see if it can recover from a stuck initialization state.

If the above steps fail to resolve the issue, it is recommended to contact the manufacturer’s technical support or a professional repair service for further assistance. Regular maintenance and inspections can also help prevent such faults from occurring in the first place.

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Shenzhen SHZHD Inverter V680 Series Operation Guide and E10 Fault Handling

Shenzhen SHZHD Inverter V680 Series Operation Guide and E10 Fault Handling

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

SHZHD INVERTER V680

1. Operation Panel Function Introduction

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

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

2. Parameter Factory Reset

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

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

3. Adding and Removing Passwords

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

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

II. Torque Control and Vector Control

1. Torque Control

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

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

2. Vector Control

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

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

III. Terminal Start/Stop and Potentiometer Speed Regulation

1. Terminal Start/Stop

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

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

2. Potentiometer Speed Regulation

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

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

IV. E10 Fault Handling

1. On-site Handling

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

2. Maintenance Handling

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

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

Conclusion

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

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User Manual and Operating Guide for Hitachi Inverter SJ300


I. Basic Operation and Monitoring Functions

  1. Panel Setting and Monitoring
    Setting to Display Current, Bus Voltage, and Frequency

Display Current: First, enter the monitoring mode via the panel buttons (typically by selecting the monitoring mode with the “FUNC” key). In monitoring mode, use the up and down arrow keys to browse through different monitoring parameters, find the current monitoring item, and confirm.
Display Bus Voltage: Similarly, in monitoring mode, use the up and down arrow keys to find the bus voltage monitoring item and confirm.
Display Frequency: Frequency is one of the most commonly used monitoring parameters and is usually directly displayed on the main interface of the monitoring mode. If not displayed, select the frequency monitoring item with the arrow keys.
Monitoring Terminal Status

Enter monitoring mode, then select “Smart Input Terminal Status” or “Smart Output Terminal Status” for monitoring. These statuses include the switching state of the terminals, signal voltage, etc.
Panel Start/Stop and Speed Adjustment

Functional diagram of the operation panel for Hitachi inverter SJ300.

Start and Stop: In standard setting mode, start the inverter with the “RUN” key and stop it with the “STOP/RESET” key.
Speed Adjustment: Speed adjustment is typically achieved by changing the frequency setting value. On the panel, use the up and down arrow keys to adjust the frequency setting value, then press the “Store” key to confirm.
II. Multi-Speed Function Setting

  1. Setting Multi-Speed
    Assuming four speeds are needed, namely 10Hz, 20Hz, 40Hz, and 50Hz, the specific steps are as follows:

Wiring:
Connect external control signals (such as switch signals) to the inverter’s multi-speed control terminals (such as FW, 8, 7, 6, etc.).
Ensure correct connection of the control signal power supply and grounding.
Parameter Setting:
Enter standard setting mode and find parameters related to multi-speed control (such as A038, A039, etc.).
Set A038=00 (indicating external terminal control for multi-speed).
Set A039=04 (indicating 4-speed control).
Set the corresponding frequency values for the four speeds in the “F001” parameter: F001=10Hz (first speed), A020=20Hz (second speed), A220=40Hz (third speed), A320=50Hz (fourth speed).
III. Communication Protocol Setting

Standard wiring diagram for Hitachi inverter SJ300.
  1. Communication with Mitsubishi FX2N Series PLC
    Communication Method: Assuming RS485 communication is used.
    Parameter Setting:
    In the inverter, set C070=03 (select RS485 communication).
    Set C071 to the desired baud rate (e.g., C071=04 for 4800bps).
    Set C072=1 (8 data bits).
    Set C073=7 (no parity check).
    Set C074=0 (1 stop bit).
    On the PLC side, configure the corresponding RS485 communication parameters to match the inverter.
    IV. Simple Analysis and Handling of Fault Codes
  2. Common Fault Codes
    E02: Overcurrent Alarm. Possible causes include excessive motor load, motor stall, etc. Troubleshooting includes checking motor load, checking for motor stall, etc.
    E03: Overload Alarm. Possible causes include the motor operating overloaded for a long time. Troubleshooting includes reducing the load, increasing motor capacity, etc.
    E05: Overvoltage Alarm. Possible causes include excessively high input voltage. Troubleshooting includes checking if the input voltage is normal, adding input voltage protection, etc.
  3. Handling Steps
    Check the Alarm Code: When the inverter alarms, first check the alarm code displayed on the panel.
    Analyze Possible Causes: Based on the alarm code and site conditions, analyze possible fault causes.
    Take Measures: Based on the analysis results, take corresponding troubleshooting measures.
    Reset the Inverter: After troubleshooting, press the “STOP/RESET” key to reset the inverter and restart it.
    V. Summary

The Hitachi Inverter SJ300 series user manual provides detailed operating instructions and parameter setting methods. By carefully reading the manual and following the guidelines, users can easily monitor, control, and troubleshoot the inverter. Particular attention should be paid to correct parameter configuration and wiring accuracy when setting the multi-speed function and communicating with PLCs. Proper use of the inverter can significantly improve the operational efficiency and stability of the motor system.

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Operation Guide for Hitachi Inverter SJH300 Series User Manual

I. Introduction to Operation Panel Functions, Factory Default Reset, and Password Management

The Hitachi Inverter SJH300 series features an intuitive operation panel that integrates various functions for easy configuration and monitoring. The operation panel includes:

Functional Diagram of the Operation Panel for Hitachi Inverter SJH300
  1. Operation Panel Function Introduction:
    • Digital Operator (OPE-S): The standard-equipped digital operator provides a user-friendly interface for setting parameters, monitoring operating conditions, and controlling the inverter. Key functions include setting output frequency, selecting operation direction, and initiating start/stop commands.
    • Monitor Modes: The panel displays various monitor modes, such as output frequency, output current, operation direction, and alarm status, to provide real-time feedback on the inverter’s performance.
  2. Resetting to Factory Defaults:
    • To restore the inverter to its factory default settings, you need to navigate to the appropriate parameter (typically b084) in the function mode and set it to 01 for data initialization or 02 for both trip history clear and data initialization. This action resets all parameters to their default values, effectively restoring the inverter to its out-of-the-box state.
  3. Password Management:
    • Setting a Password: To set a password for parameter access, use the C070 parameter to select the data command mode (e.g., 03 for RS485 communication). Then, configure the relevant communication parameters (such as transmission speed, code, bit, and parity) to establish a secure communication channel.
    • Eliminating a Password: To remove the password, simply reset the C070 parameter to its default value (02 for operator mode), which disables password protection and allows unrestricted access to all parameters.
Standard wiring diagram for Hitachi Inverter SJH300 series.

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

The Hitachi Inverter SJH300 series offers flexible control options, including terminal start/stop, forward/reverse control, and external potentiometer speed adjustment. Here’s how to configure these features:

  1. Terminal Start/Stop and Forward/Reverse Control:
    • Wiring: Connect the start (FW) and stop (RV) terminals to the appropriate control signals. For forward/reverse control, you may need to assign specific intelligent input terminals (e.g., terminals 7, 8 for forward/reverse commands).
    • Parameter Setting:
      • Set A002 to 01 to select terminal operation command.
      • Configure F004 to select the desired operation direction (00 for forward, 01 for reverse).
      • If using intelligent input terminals for forward/reverse control, assign the corresponding terminals (e.g., terminals 7, 8) and set the appropriate function codes (C001-C008).
  2. External Potentiometer Speed Adjustment:
    • Wiring: Connect the external potentiometer (typically a 10kΩ linear potentiometer) across the O-L (0-10V) terminals. Ensure proper grounding and shielding to avoid noise interference.
    • Parameter Setting:
      • Set A001 to 01 to select terminal frequency command.
      • Configure A011 (O start) and A012 (O end) to define the minimum and maximum output frequencies corresponding to the potentiometer’s minimum and maximum resistance values.
      • Adjust A013 (O start rate) and A014 (O end rate) if linear adjustment is not achieved directly with the potentiometer.

By following these steps, you can effectively configure the Hitachi Inverter SJH300 series for terminal-based start/stop and forward/reverse control, as well as external potentiometer speed adjustment, to suit your specific application requirements.

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Analysis, Types, and Maintenance Solutions for Delta Inverter GFF Fault

I. Meaning and Internal Mechanism of Delta Inverter GFF Fault

When a Delta inverter reports a “GFF” fault code, it indicates a “Ground Fault” (GFF) has occurred at the output terminal. This fault typically involves issues with the output circuit, such as damage to the IGBT, a short circuit in the output, or problems with the driver circuit, particularly when using PC929 optocouplers.

Physical picture of Delta INVERTER MS300 series

II. Analysis of the GFF Fault Scenario Described

In the scenario provided, the Delta inverter reports a GFF fault immediately upon connecting the motor, but the fault disappears when the motor wires are disconnected and the inverter is started alone. This suggests that the issue lies with the motor or the connection between the motor and the inverter, rather than the inverter itself.

Possible Causes:

  1. Motor Wiring Issues:
    • Short circuit or ground fault in the motor wiring.
    • Poor connection or loose wires at the motor terminals.
  2. Motor Problems:
    • Internal short circuit or ground fault within the motor.
    • Insulation failure or damage in the motor windings.
  3. External Interference:
    • Electromagnetic interference from nearby equipment affecting the inverter’s output circuit.
  4. IGBT or Driver Circuit Damage:
    • Although less likely in this case (since the fault disappears without the motor), damage to the IGBT or driver circuit could still be a factor if there are underlying issues with the inverter’s output stage.
b4GFF fault

III. Steps for Troubleshooting and Maintenance

  1. Check Motor Wiring:
    • Ensure all motor wires are properly connected and tightened.
    • Inspect the wires for any signs of damage, wear, or short circuits.
  2. Insulation Resistance Test:
    • Perform an insulation resistance test on the motor to check for insulation failure.
  3. Disconnect and Reconnect Motor:
    • Disconnect and then reconnect the motor wires to ensure a good connection.
    • Use a multimeter to test for continuity and shorts between the motor wires and ground.
  4. Isolate the Motor:
    • Try running the inverter with a different motor (if available) to determine if the fault lies with the motor or the inverter.
  5. Check Inverter Output Circuit:
    • Inspect the inverter’s output circuit for any signs of damage, particularly around the IGBTs and driver circuitry.
    • Replace any damaged components if necessary.
  6. Consult the Manual and Technical Support:
    • Refer to the Delta Inverter manual for more detailed troubleshooting steps and fault codes.
    • Contact Delta technical support for assistance if the issue cannot be resolved.

IV. Conclusion

The GFF fault reported by the Delta inverter is likely related to the motor or its connection to the inverter. By systematically checking the motor wiring, performing insulation resistance tests, and isolating the motor, the root cause of the fault can be identified and resolved. If the fault persists, further inspection of the inverter’s output circuit may be necessary.

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SHZK INVERTER ZK880 Series User Guide and ERR13 Fault Handling Method

SHZK INVERTER ZK880 Series User Guide

I. Operation Panel Function Introduction

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

II. Setting Key Parameters

1. Acceleration and Deceleration Time

To set the acceleration and deceleration time:

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

2. Starting Frequency

To set the starting frequency:

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

3. Upper and Maximum Frequency

To set the upper and maximum frequency:

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

4. Minimum Frequency

To set the minimum frequency:

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

5. Current and Power

To monitor or limit the current and power:

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

6. Restoring Initialization Parameters

To restore the inverter to its factory settings:

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

III. Terminal Start and Direction Control

1. Terminal Start

To start the inverter via terminals:

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

2. Direction Control

To control the rotation direction:

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

ERR13 Fault Handling Method

Common Causes of ERR13 Fault

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

Handling Steps

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

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

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Emerson Inverter MEV2000 Series User Guide and Er.0234 Fault Meaning and Solution

I. Introduction

The Emerson Inverter MEV2000 series, with its high performance, high reliability, and wide range of applications, has become a preferred choice in the field of industrial control. This article will provide a detailed introduction to the panel functions, password setting and removal, parameter initialization methods of the MEV2000 series inverters. Additionally, it will explain how to use terminal control for forward and reverse starting and potentiometer speed adjustment. Finally, it will address the common Er.0234 fault, explaining its meaning and providing detailed solutions.

Emerson inverter MEV2000 physical picture

II. Inverter Panel Function Introduction

The operation panel of the Emerson Inverter MEV2000 series serves as the primary interface between the user and the device, featuring an LED display, function keys, and indicator lights. Users can utilize the panel to view inverter status, set operational parameters, and monitor input and output signals. The primary function keys on the panel include the program/exit key, function/data key, increase/decrease keys, and run/stop keys, which can be combined to perform various operations.

Password Setting and Removal

To protect the inverter parameters from unauthorized modification, the MEV2000 series inverters offer a password protection function. Users can set a password by configuring the FP.000 parameter. Once set, a password is required to modify parameters. If password protection needs to be removed, the following steps can be followed: first, unlock the user password using the correct password, then set the FP.001 parameter to 0, and finally reset the inverter to disable password protection.

Parameter Initialization

When users need to restore the inverter parameters to the factory settings, they can do so by configuring the FP.002 parameter. Setting FP.002 to 2 will clear all user-set parameters and restore them to the default factory settings. However, please note that this operation will not restore the motor parameters. To restore motor parameters, FP.002 should be set to 4.

III. Terminal Control for Forward and Reverse Starting and Potentiometer Speed Adjustment

Setting Parameters

To use terminal control for forward and reverse starting and potentiometer speed adjustment, the following parameters need to be configured:

  • F0.000: Set the frequency given channel to digital given 1 (adjusted by the operation panel potentiometer).
  • F0.004: Set the operation command channel to the terminal operation command channel.
  • F7.008: Set the operation mode to two-wire operation mode 1 or 2, depending on the specific wiring method.

Wiring Terminals

  • FWD: Forward control terminal, connected to an external forward start button or switch.
  • REV: Reverse control terminal, connected to an external reverse start button or switch.
  • +10V and 0V: Provide power to the potentiometer, connected to both ends of the speed adjustment potentiometer.
  • AI1: Analog input terminal, connected to the sliding end of the speed adjustment potentiometer to receive the speed adjustment signal.
ER.2034 malfunction

IV. Er.0234 Fault Meaning and Solution

Fault Meaning

When the Emerson Inverter MEV2000 series displays the Er.0234 fault code, it indicates that either the OLX2 (overload relay board) or the STO (safety signal input board) is not installed or improperly connected. These two boards are crucial for the normal operation of the inverter, with the OLX2 responsible for monitoring overload conditions and the STO responsible for processing safety signals.

Solution

  1. Check Board Installation:
    • First, confirm that the OLX2 board and STO board are correctly installed inside the inverter.
    • Inspect the connections between the boards and the inverter’s mainboard to ensure they are secure and free from looseness or detachment.
  2. Check Wiring:
    • Verify that the wiring for the OLX2 board and STO board is correct, with no misconnections or missing connections.
    • Confirm that all connection wires are securely fastened and free from shorts or opens.
  3. Restart the Inverter:
    • After confirming that the boards are installed and wired correctly, attempt to restart the inverter to see if the fault is resolved.
    • If the fault persists, further inspection of the boards for potential damage may be necessary.
  4. Replace the Boards:
    • If damage to the boards is confirmed, replace them with new OLX2 and STO boards promptly.
    • After replacing the boards, reinstall and rewire them, then try to start the inverter again.
  5. Contact After-Sales Service:
    • If the above steps fail to resolve the issue, it is recommended to contact Emerson Inverter’s after-sales service personnel for professional assistance.

V. Conclusion

The Emerson Inverter MEV2000 series plays a vital role in the field of industrial control due to its powerful functions and reliable performance. Through this article, users can gain a better understanding of the inverter’s panel functions, password setting and removal, parameter initialization methods, and how to use terminal control for forward and reverse starting and potentiometer speed adjustment. Additionally, for the common Er.0234 fault, this article provides detailed solutions to help users quickly locate and resolve the issue, ensuring the normal operation of the inverter.

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Instruction Guide and Fault Handling for IS620P Series Servo System by Inovance

Inovance IS620P Series Servo System Instruction Guide

1. Setting Up Speed Mode with External Terminal Start and Potentiometer Speed Regulation

Parameter Settings

To configure the Inovance IS620P series servo system for speed mode control with external terminal start and potentiometer speed regulation, the following parameters need to be set:

  • H02-00: Set to 0 to select speed control mode.
  • H06-00: Set to 1 to select AI1 as the speed command source. If AI2 is used, set to 2.
  • H06-02: Set to 0 to select the main speed command A as the speed source.
  • H03-50 to H03-59: Configure the offset, gain, and other parameters of the AI1 channel according to the potentiometer’s voltage range to ensure a linear relationship between the potentiometer’s output voltage and the speed command.
  • H06-05 and H06-06: Set the acceleration and deceleration times for the speed command to ensure smooth start and stop.

Terminal Connections

  • AI1 Terminal: Connect the output of the potentiometer to receive the speed regulation signal.
  • DI1 Terminal: Set to servo enable (FunIN.1: S-ON) and connect to an external start signal.
  • Other DI Terminals: Configure other functions as needed, such as direction control and external reset.

2. Jog Operation

Parameter Settings

  • H06-04: Set the jog speed, typically in rpm.
  • H0D-11: Jog test run function entry code, which allows jog test runs to be performed through the panel settings.

Operation Steps

  1. Access the parameter settings interface through the panel.
  2. Set H06-04 to the desired jog speed.
  3. Use the jog buttons on the panel or activate jog operation through external DI terminals (such as FunIN.18 and FunIN.19).
  4. Control the direction and stopping of the jog operation through the panel or external signals.

3. CANOPEN Communication Setup

Hardware Connection

  • Connect the CAN interface of the servo drive to the CAN interface of the upper computer using shielded twisted pair cables.
  • Ensure that the shielding layer of the connecting cable is properly grounded to reduce interference.

Parameter Settings

  • H0C-00: Set the servo axis address to ensure each drive has a unique address.
  • H0C-08: Set the CAN communication rate to match the upper computer.
  • H0C-09: Enable communication VDI.
  • H17 Group Parameters: Configure virtual DI and DO functions as needed.
er.630 fault

Fault Code Meanings and Handling Methods for Inovance Servo IS620P Series

Fault Code er.630

Meaning

The er.630 fault code indicates motor stall overtemperature protection. When the motor stalls due to excessive load or mechanical obstruction during operation, and the motor temperature rises to a certain level, the servo drive will report this fault.

Solution

  1. Check Mechanical Load: Confirm whether there is any obstruction or excessive load in the mechanical part and address it promptly.
  2. Adjust Gain Parameters: Adjust the speed loop and position loop gain parameters according to the mechanical load to prevent the motor from stalling due to excessive gain.
  3. Increase Acceleration and Deceleration Time: Increase the settings of H06-05 and H06-06 to make the motor start and stop more smoothly, reducing the possibility of stalling.
  4. Check Motor and Drive Connections: Ensure that the connections between the motor and the drive are correct to avoid stalling caused by wiring errors.
  5. Monitor Motor and Drive Status: Use the Inovance drive debugging platform to monitor the motor’s operating status and the drive’s output commands to identify any anomalies.
IS620P Huichuan servo physical picture

If the above methods fail to resolve the issue, it may be necessary to replace the servo drive or motor with a higher capacity to accommodate the current load demand. Additionally, when handling faults, ensure safe operation to prevent personnel injury or equipment damage.

By following the above setup and fault handling methods, users can effectively use and maintain the Inovance IS620P series servo system, ensuring its stable and efficient operation.

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

I. Introduction to MIKOM Inverter MV Series Operation Panel Functions

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

Mikom inverter physical picture

1. LED Display Area

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

2. Indicators

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

3. Function Keys

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

4. Restoring Factory Defaults

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

5. Panel Start/Stop and Speed Adjustment Settings

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

II. Terminal Start/Stop and Potentiometer Speed Adjustment Settings

1. Terminal Connections

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

2. Parameter Settings

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

3. Speed Adjustment Settings

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

III. Fault Codes and ER.03 Fault Analysis

1. Fault Codes

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

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

2. ER.03 Fault Analysis

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

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

3. Handling and Repair Methods

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

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

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