Category: Other Drives

The SEW Servo Drives MDX60B/MDX61B series are widely used in automation control systems, known for their high performance and reliability, meeting the needs of various industrial applications. This guide will provide a detailed introduction to the usage, parameter settings, common faults, and troubleshooting methods of this series, with a focus on explaining the meaning of fault code F196.4 and its resolution.

1. SEW Servo Operation Panel DBG60B Features

The SEW Servo Drives MDX60B/MDX61B series are equipped with the DBG60B operation panel, which provides an easy-to-use interface for monitoring and configuring the drive parameters.

Main Features:

• Operating Status Display: The operation panel can display the current status of the servo drive, including alarms, operating parameters, and other critical information.
• Parameter Settings: Users can set and adjust various parameters to customize the operation of the drive for specific applications.

Setting “Heat Sink Temperature” and “Operating Time”:

1. On the DBG60B panel, press the “MENU” button to enter the parameter setting mode.
2. Navigate to the “Parameters” menu and find the monitoring options for “Heat Sink Temperature” and “Operating Time.”
3. Enable these parameters for display.
4. After setting, press the “Confirm” button to save the settings. From then on, the operation panel will show the heat sink temperature and operating time, allowing users to monitor the drive’s operating conditions.

Restoring Factory Default Parameters:

1. On the DBG60B panel, press the “MENU” button to enter the parameter setting mode.
2. Select “Restore Factory Settings” from the menu.
3. Confirm the restoration of factory settings, and the system will reset all parameters to their default values. This is useful for initializing the device or correcting configuration errors.

Setting Password and Locking Parameters:

1. In the “Menu” options, select “Password Settings.”
2. Enter the default password (usually “0000”), then set a new password.
3. Enable “Lock Parameters” to prevent unauthorized modification of critical settings. This step is crucial for preventing accidental changes and ensuring the safety of the equipment.

2. Setting External Terminal Forward/Reverse and External Potentiometer (Analog) for Frequency Control

The SEW Servo MDX60B/MDX61B series supports controlling forward/reverse rotation and adjusting the speed via an external potentiometer or other analog input signals. This is useful for manual speed and direction control in various applications.

Wiring Requirements:

• Forward/Reverse Control: Use digital input terminals (e.g., X10-X12) to connect external pushbuttons or switches for forward and reverse control.
  • For example, connect a switch between terminals X10 and X11 to implement forward/reverse control.
• Analog Speed Control via Potentiometer: Use the analog input terminal (e.g., X13) to connect an external potentiometer (10kΩ) or other analog devices that provide a 0-10V or 4-20mA signal to control the speed.
  • Terminal X13 is used for the analog input to set the motor speed.

Parameter Settings:

1. Setting External Forward/Reverse:
   • In the parameter menu, set the “Control Mode” to “External Control.” Map the input terminals X10-X12 to forward/reverse control functions.
   • Set the input signal correctly (e.g., X10 for forward, X11 for reverse).
2. Setting Analog Potentiometer for Speed Control:
   • In the parameters, set the “Speed Control Mode” to “Analog Input Speed Control” and select the appropriate input terminal (e.g., X13).
   • Ensure the correct analog signal range (e.g., 0-10V or 4-20mA) is selected to ensure accurate speed control.

3. Common Fault Codes in SEW Servo Drives and Solutions

The SEW Servo MDX60B/MDX61B series may show several common fault codes, including but not limited to:

• F0001 – Overload Protection: This error indicates that the load on the servo motor exceeds its rated capacity, triggering the protection mechanism.
  • Solution: Check if the load is too heavy. Adjust the load or reduce the drive output power accordingly.
• F0102 – Motor Overheating: If the motor temperature exceeds the set threshold, this fault is triggered.
  • Solution: Check the cooling system, ensure proper airflow, and remove any obstructions that may affect cooling.
• F0203 – Encoder Signal Loss: When the encoder signal is lost or unstable, the drive cannot get accurate position feedback.
  • Solution: Inspect the encoder connection, ensuring that the signal wires are intact and not damaged.

4. Fault F196.4 Meaning and How to Repair It

F196.4 is a fault indicating an issue with the “Inverter Coupling Reference Voltage”, specifically a defective inverter coupling. This fault typically occurs when the reference voltage in the inverter’s coupling circuit is unstable or fails.

F196.4 Fault Analysis:

• Fault Description: The F196.4 fault code generally indicates that the coupling module within the inverter cannot function properly, failing to generate or maintain the required reference voltage. This leads to abnormal signal transmission, affecting the inverter’s operation.
• Possible Causes:
  1. Failure of the coupling module’s internal power supply, preventing the generation of reference voltage.
  2. Faulty circuit components (e.g., capacitors, resistors) within the coupling module.
  3. External power supply issues or unstable voltage leading to abnormal reference voltage.

Solution:

1. Check the Coupling Module: Inspect the coupling module for any visible damage or loose connections.
2. Measure the Voltage: Use a multimeter or oscilloscope to check the output voltage of the coupling module and ensure it is stable and within the specified range.
3. Replace Defective Components: If the coupling module or related components are found to be defective, replace them with the correct parts.
4. Verify Power Supply Stability: Ensure the power supply system is stable and the wiring connections are correct.

If the issue persists after these checks, it is recommended to contact SEW-EURODRIVE technical support for further diagnosis and assistance.

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Conclusion

The SEW Servo MDX60B/MDX61B series drives, with their high efficiency and versatile functions, are widely used in industrial automation. The DBG60B operation panel provides an intuitive interface for setting parameters, monitoring status, and making adjustments as needed. Understanding common fault codes and their solutions is essential for maintaining system reliability. In particular, F196.4 indicates a serious issue with the inverter’s coupling reference voltage, which requires immediate attention and repair. By following the troubleshooting steps outlined in this guide, users can ensure the smooth operation and longevity of their servo drive systems.

I. Display Menu and Status Monitoring

1.1 Operation and Settings of the Display Menu

The GSK DAP03 spindle drive unit is equipped with a 6-digit LED digital tube for displaying various statuses and parameters. Users can operate the display menu and monitor statuses through the following steps:

Status Monitoring: Users can press corresponding buttons to select different monitoring statuses. For example, pressing the “+” or “-” button can flip through different monitoring contents such as motor speed, current position, input/output terminal status, etc. The specific monitoring content can be selected by setting parameter PA3, and the content displayed after power-on can also be set according to this parameter.

Parameter Setting: In parameter setting mode, users can adjust parameter values using the “+” and “-” buttons, and save the settings by pressing the “Confirm” button. Note that after modifying certain key parameters, a parameter write operation (EE-SEt) is required to ensure the changes take effect.

1.2 Settings for Status Monitoring

Status monitoring allows users to view various statuses of the drive unit in real-time, such as motor speed, position, alarm codes, etc. Users can select the specific monitoring content by setting parameter PA3. For example, setting PA3 to “0” will display motor speed by default after power-on; setting it to “1” will monitor the low five-digit pulse count of the current motor position, and so on.

II. Manual and Inching Control

2.1 Manual Control

In manual control mode, users can directly control the motor’s forward and reverse rotation as well as acceleration and deceleration using the “+” and “-” buttons on the operation panel. The specific steps are as follows:

• Set PA4=2 to select manual operation mode.
• Set PA33=1 to enable forced enable (not dependent on external enable signals).
• Enter the manual operation menu and control the motor using the “+” and “-” buttons. Pressing the “+” button accelerates the motor, pressing the “-” button decelerates it, and releasing the buttons allows the motor to maintain its current speed.

2.2 Inching Control

Inching control allows users to briefly run the motor at a preset speed. The specific steps are as follows:

• Set PA4=3 to select inching operation mode.
• Set PA21 to the desired inching speed (e.g., 300 represents 300 RPM).
• Set PA33=1 to enable forced enable.
• Enter the inching operation menu and press the “+” or “-” button to start the motor in forward or reverse rotation. The motor stops when the button is released.

III. Position and Speed Control Modes

3.1 Position Control Mode

In position control mode, users control the motor’s precise position through pulse commands. The specific wiring and parameter settings are as follows:

Wiring: Connect the PULS+, PULS-, SIGN+, SIGN- terminals of the CN1 interface to receive position commands.

Parameter Settings:

• Set PA4=0 to select position mode.
• Set PA12 (position pulse command multiplication factor) and PA13 (position pulse command division factor) as needed to calculate the electronic gear ratio.
• Set PA14 to select the pulse command mode (e.g., pulse + direction).

3.2 Speed Control Mode

In speed control mode, users can control the motor’s speed through analog voltage commands or internal digital commands. The specific wiring and parameter settings are as follows:

Analog Voltage Command Control:

• Wiring: Connect the VCMD+, VCMD- terminals of the CN1 interface to receive analog voltage commands.
• Parameter Settings: Set PA4=1 and PA22=1 to select analog command speed mode, and set PA42 to the motor speed corresponding to 10V analog input.

Internal Digital Command Control:

• Wiring: Connect the SP0, SP1, SP2, etc., terminals of the CN1 interface to select preset speeds.
• Parameter Settings: Set PA4=1 and PA22=0 to select internal command speed mode, and set the speeds for each segment through PA24 to PA30.

3.3 Electronic Gear Ratio Setting

The electronic gear ratio is used to convert input commands into the motor’s actual movement. The calculation formula is:

G = (ZM × CD × δ × CR × PA13) / (PA12 × ZM × L)

Where ZM and ZD are the gear ratios at the screw end and motor end (both are 1 when directly connected), L is the screw lead, C is the motor encoder’s number of lines, δ is the system’s minimum output command unit, and CR and CD are the multiplication and division factors for the upper machine’s commands. Users need to set PA12 and PA13 according to the actual mechanical structure to achieve the desired electronic gear ratio.

IV. Common Alarm Codes and Troubleshooting

The GSK DAP03 spindle drive unit displays corresponding alarm codes when abnormalities are detected. Below are some common alarm codes, their meanings, and troubleshooting methods:

• Err-1: The spindle motor speed exceeds the set value. Possible causes include abnormal encoder feedback signals, improper acceleration/deceleration time settings, etc. Troubleshooting methods include checking encoder connections, adjusting acceleration/deceleration time parameters, etc.
• Err-5: Motor overtemperature alarm. Possible causes include no temperature detection device inside the motor, overload, etc. Troubleshooting methods include setting PA73=1 to disable the alarm, reducing the load, etc.
• Err-9: Abnormal motor encoder signal feedback. Possible causes include poor encoder signal wire connections, damaged encoders, etc. Troubleshooting methods include checking encoder connections, replacing encoders, etc.

V. Err-11 Alarm Code Meaning and Troubleshooting

The Err-11 alarm code indicates a fault in the intelligent power module (IPM) inside the drive unit. The IPM is a core component of the drive unit, responsible for converting DC power into AC power to drive the motor. When the IPM detects abnormalities or damage, it triggers the Err-11 alarm.

Possible Causes:

• IPM Overheating: Long-term high-load operation or poor heat dissipation may cause the IPM to overheat, leading to failure.
• Short Circuit or Overload: Short circuits in the motor or power lines, as well as motor overload operation, can damage the IPM.
• Power Voltage Fluctuations: Unstable power voltage may cause abnormal IPM operation or even damage.
• IPM Quality Issues: In rare cases, the IPM may have manufacturing defects or early failure.

Troubleshooting Methods:

• Check Power Voltage: Ensure stable input power voltage that meets the drive unit’s voltage requirements. If the power voltage fluctuates significantly, consider installing a voltage stabilizer.
• Check Motor and Wiring: Disconnect the motor from the drive unit and check for short circuits or grounding faults in the motor and wiring. Use tools such as a multimeter to perform resistance and insulation tests to ensure the wiring is intact.
• Improve Heat Dissipation: Ensure the drive unit’s cooling fan is working properly and the heatsink is clean of dust. In high-temperature or harsh environments, consider adding additional cooling measures, such as installing fans or lowering the ambient temperature.
• Replace the IPM: If the above steps fail to solve the problem, it may be due to IPM failure. In this case, contact the supplier or manufacturer to purchase and replace the IPM. When replacing, ensure power is off, and the new module is compatible with the old one.
• Contact Technical Support: If the problem persists, it is recommended to contact GSK’s technical support team for assistance. They can provide more professional fault diagnosis and repair advice.

Notes:

• When dealing with any faults related to electrical equipment, always cut off the power first to ensure personal safety.
• If you do not have relevant professional knowledge and skills, do not attempt to repair the drive unit or IPM yourself. Incorrect operations may lead to further equipment damage or safety hazards.

By following the above steps, you should be able to diagnose and solve the Err-11 alarm issue in the GSK DAP03 spindle drive unit. If the problem persists, seek help from professional technicians.

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

Operating Panel Functionality

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

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

Parameter Upload and Download

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

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

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

Initializing Parameters

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

II. External Terminal Control

Achieving Forward/Reverse Rotation and Potentiometer Speed Adjustment

Terminal Connections

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

Parameter Settings

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

III. ERR02 Fault Solution

Meaning of ERR02 Fault

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

Fault Causes and Solutions

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

Repairing the Inverter

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

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

Conclusion

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

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

1.1 Introduction to Panel Functions

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

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

1.2 Parameter Initialization and Upload/Download

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

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

1.3 Setting and Removing Passwords

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

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

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

2.1 Terminal Start/Stop and Potentiometer Speed Adjustment

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

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

2.2 Terminal-Based Forward/Reverse Control

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

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

III. Distinction between HOC and OC Faults and Solutions

3.1 Distinction between HOC and OC Faults

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

3.2 Fault Solutions

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

IV. Conclusion

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

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.

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.

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.