Category: Electrical Equipment Manuals

I. Product Overview & Core Features

The SJZO Frequency Inverter 200M Series is a high-performance vector control inverter designed for industrial automation, widely applied in motor speed regulation, energy-saving control, and precision drive scenarios. Its core advantages include a wide power range (0.4kW–500kW), high-precision control algorithms, and multifunctional interface design. This guide provides detailed instructions on operating panel functions, parameter setup techniques, external control implementation methods, and common fault troubleshooting.

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II. Operating Panel Functions & Parameter Management

1. Operating Panel Overview

The SJZO 200M Series features an intuitive LCD operating panel supporting the following core functions:

• Start/Stop Control: Directly start or stop the motor via panel buttons.
• Frequency Setting: Adjust output frequency (0–400Hz) via a knob or digital input.
• Parameter Display & Modification: View real-time parameters such as current, voltage, and fault codes.
• Mode Switching: Toggle between local control (panel operation) and remote control (external signals).

2. Password Setup & Removal

（1）Setting a Password

• Access parameter group P7 (Access Control) and locate parameter P7.01 (User Password).
• Enter a 4-digit password (e.g., 1234) and press “Confirm” to save.
• Once enabled, critical parameter modifications require password input.

（2）Removing the Password

• Access P7.01, enter the set password, and change the value to “0000” to remove it.

3. Parameter Access Restrictions

• Hierarchical Access Control:
  • Parameter group P7.02 allows setting different access levels (e.g., Engineer Level, Operator Level) to restrict unauthorized parameter modifications.
  • Example: Setting P7.02 to “1” allows viewing only basic parameters; setting it to “2” grants full parameter modification access.

4. Restoring Factory Default Settings

• Method 1: Panel Operation
  • Press and hold the “Reset” button for 5 seconds until “INI” appears on the screen, then release. Parameters will automatically revert to defaults.
• Method 2: Parameter Setup
  • Access parameter P0.15 (Factory Reset), set it to “1,” and confirm. The inverter will restart with default settings.

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III. External Terminal Forward/Reverse Control & Potentiometer Speed Regulation

1. External Terminal Forward/Reverse Control

（1）Wiring Instructions

• Forward Terminal (e.g., X1): Connect to an external switch signal (normally open contact). Closing the contact starts the motor in the forward direction.
• Reverse Terminal (e.g., X2): Connect to another switch signal. Closing the contact starts the motor in reverse.
• Common Terminal (COM): Provides a reference ground for control signals.

（2）Parameter Setup

• Control Mode Selection:
  • Set P0.01=1 (External Terminal Control Mode).
• Terminal Function Definitions:
  • Set P4.01=1 (X1 as Forward Command), P4.02=2 (X2 as Reverse Command).
• Interlock Protection:
  • Enable P4.10=1 (Forward/Reverse Interlock) to prevent simultaneous activation and short circuits.

2. External Potentiometer Frequency Regulation

（1）Wiring Instructions

• Potentiometer Connection:
  • Connect the potentiometer ends to the inverter’s +10V (power supply) and GND (ground), and the wiper to the analog input terminal AI1 (or AI2).
• Signal Range: 0–10V corresponds to an output frequency range of 0–50Hz (adjustable).

（2）Parameter Setup

• Frequency Source Selection:
  • Set P0.02=2 (Analog Input AI1 as Frequency Setting Source).
• Input Range Calibration:
  • Set P3.01=0 (0–10V input), P3.02=50.00 (corresponding to a maximum frequency of 50Hz).
• Filtering Time:
  • Adjust P3.05=0.1s (to reduce signal jitter interference).

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IV. E.04 Fault Code Analysis & Troubleshooting

1. Fault Definition

E.04 indicates “Output Overcurrent,” meaning the inverter detects motor current exceeding the rated threshold (typically 150%–200%). Common causes include:

• Motor winding short circuits or ground faults.
• Sudden load changes (mechanical jamming, abnormal drive system).
• Excessively short acceleration time (improper P0.07 setting).
• IGBT module damage or drive circuit failure.

2. On-Site Troubleshooting Steps

Step 1: Power-Off Inspection

1. Disconnect power and measure the motor’s three-phase winding resistance to ensure balance (deviation ≤5%) and no grounding (resistance ≥5MΩ).
2. Manually rotate the load to rule out mechanical jamming.

Step 2: Parameter Optimization

1. Extend acceleration time: Adjust P0.07 (Acceleration Time) to 10 seconds or more.
2. Reduce torque compensation: Modify P3.12 (Torque Boost) to 5% or less.

Step 3: Hardware Inspection

1. IGBT Module Testing:
   • Use a multimeter’s diode mode to measure IGBT pins. Normal operation shows forward conduction and reverse cutoff. Replace the module if short-circuited.
2. Current Sensor Check:
   • Compare three-phase output current values. An abnormal phase may indicate a Hall sensor fault.

Step 4: Anti-Interference Measures

1. Separate power and signal lines by ≥20cm.
2. Install ferrite filters at both ends of analog signal lines.

3. Preventive Measures

• Regularly clean cooling air ducts to ensure proper fan operation.
• Avoid frequent starts/stops or overloading.
• Install input reactors (optional) in environments with significant grid voltage fluctuations.

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V. Maintenance & Technical Support

1. Routine Maintenance:
   • Check terminal tightness monthly to prevent poor contact.
   • Clean internal dust and replace aged capacitors quarterly.
2. Professional Support:
   • If the fault persists, contact us or consider equipment recycling services.

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Conclusion

The SJZO Frequency Inverter 200M Series has become a cornerstone device in industrial automation due to its flexible control methods and high reliability. Mastering operating panel functions, external control implementation, and fault troubleshooting techniques can significantly enhance equipment efficiency and lifespan. For E.04 and other common faults, users can resolve issues through systematic troubleshooting. For complex cases, prompt professional support is recommended.

I. Operation Panel Functions and Parameter Management

1. Operation Panel Function Introduction

• Applicable Model: SQ-K01 Operation Panel (Refer to pages 8, 18-23 of the manual)
• Core Functional Modules:
  • Key Functions:
    • Run/Stop: Controls the start/stop of the inverter. Press and hold the “Stop/Reset” key for free stop.
    • Function Key: Toggles between monitoring states and menu levels (Primary Menu → Secondary Menu → Parameter Editing).
    • Save/Confirm Key: Saves parameter modifications and jumps to the next parameter.
    • Shift Key (<<): Switches between monitoring parameters or moves the data editing position.
    • Increment (▲)/Decrement (▼) Keys: Adjusts parameter values or function code numbers.
  • Indicator Lights:
    • FWD/REV: Indicates forward/reverse operation status.
    • H/V/A/r/min: Correspond to display units for frequency, voltage, current, and speed, respectively.
    • Digital Display: 5-digit LED displays parameter values, fault codes, or operational data (e.g., output frequency 50.00Hz).

2. Parameter Initialization

• Steps (Refer to parameter F2.00 on page 29 of the manual):
  1. Enter the primary menu and select -F2- (Auxiliary Settings Group).
  2. Enter the secondary menu and select F2.00 (Parameter Initialization).
  3. Set to 1 to restore factory settings, or 2 to clear fault records.
  4. Press the “Save” key to confirm, and the inverter will restart automatically to take effect.

3. Password Setting and Removal

• Setting Password (Parameter F2.03 on page 29 of the manual):
  1. Enter F2.03 (Parameter Permission Modification Password) and input a value between 0-65535.
  2. After saving, entering this password will be required to modify other parameters.
• Removing Password: Reset F2.03 to 0 to cancel password protection.

4. Parameter Access Restrictions

• Setting Method: Set permissions via F2.01 (Parameter Write Protection) (Refer to page 29 of the manual)
• Permission Options:
  • 0: Allows modification of all parameters (some parameters cannot be modified during operation).
  • 1: Only allows modification of the digital set frequency (F0.02).
  • 2: Prohibits modification of all parameters (only F2.01 and F2.03 can be adjusted).

II. External Terminal Control and Potentiometer Speed Regulation Settings

1. External Terminal Forward/Reverse Control

• Wiring and Parameter Settings (Refer to pages 12-15, 46-48 of the manual):
  • Wiring Terminals:
    • Power Input: L/N (Single-phase 220V) or R/S/T (Three-phase 380V).
    • Control Terminals: X1-X6 are multi-function inputs, COM is the common terminal.
    • Example Wiring: X1 connected to the forward rotation button, X2 connected to the reverse rotation button, both short-circuited with COM to take effect.
  • Parameter Settings:
    1. F0.00: Set to 1 (External Terminal Control Mode).
    2. F4.00-F4.05: Define terminal functions (e.g., X1=5 “Forward Rotation”, X2=6 “Reverse Rotation”).
    3. F4.06: Select control mode (recommended 2 Two-Wire Control Mode 1, FWD/REV independently controlled).

2. External Potentiometer Frequency Speed Regulation

• Wiring and Parameter Settings (Refer to pages 14-15, 36-37, 51 of the manual):
  • Wiring Terminals:
    • Analog Input: AII (0-10V) connected to the middle pin of the potentiometer, COM connected to the negative terminal, 10V terminal connected to the power positive terminal.
    • Jumper Setting: The J1 jumper on the control board needs to be short-circuited to the “V” side (voltage input mode).
  • Parameter Settings:
    1. F0.01: Set to 3 (External Analog Signal AII for Frequency Setting).
    2. F5.00-F5.03: Calibrate the input range (default 0-10V corresponds to 0-100% frequency).
    3. F5.04: Adjust the filtering time (default 0.2 seconds, for anti-interference purposes).

III. Fault Code Analysis and Handling Methods

Common Fault Codes and Solutions (Refer to pages 65-66 of the manual)

Fault Code	Meaning	Solution
E001	Acceleration Overcurrent	Check motor load, extend acceleration time (F0.06).
E004	Acceleration Overvoltage	Increase deceleration time (F0.07), check braking resistor.
E009	Radiator Overheating	Clean the air duct, ensure ambient temperature ≤40℃.
E010	Inverter Overload	Reduce load or increase inverter capacity.
E011	Motor Overload	Adjust F8.01 (Motor Overload Protection Coefficient).
E015	Undervoltage During Operation	Check input power voltage, adjust F8.06 threshold.
E016	EEPROM Read/Write Fault	Restore factory parameters, contact the manufacturer to replace the storage chip.

General Fault Troubleshooting Steps:

1. Power-Off Inspection: Disconnect the power supply for 5 minutes, check for loose or short-circuited wiring.
2. Reset Operation: Press the “Stop/Reset” key to clear the fault and power on again.
3. Parameter Verification: Confirm that key parameters (such as F0.03 maximum frequency, F3 group motor parameters) match the equipment.
4. Contact Support: If the fault persists, record the code and contact the manufacturer (Phone: 17328677949).

IV. Conclusion

The SQ1000 inverter meets complex industrial demands through flexible parameter configuration and diverse control methods. Users must strictly adhere to the safety specifications in the manual (such as grounding and heat dissipation requirements) and perform regular maintenance to extend the equipment’s lifespan. Mastering the operation panel functions, external control settings, and fault handling techniques can significantly improve equipment operational efficiency and stability. It is recommended to keep the manual and refer to it regularly to ensure compliance and safety in operations.

I. Introduction

The Xinshuangyuan AT Series Frequency Inverter is a widely used device in the field of industrial control. Its user manual serves as an essential guide for users to operate and maintain the inverter correctly. This document, based on the contents of the user manual, provides a detailed introduction to the operation panel functions, parameter setting methods, implementation of external control functions, and troubleshooting of fault codes for the AT Series Frequency Inverter, aiming to assist users in better understanding and utilizing the inverter.

II. Introduction to Operation Panel Functions

The operation panel of the Xinshuangyuan AT Series Frequency Inverter is the primary interface for user interaction with the inverter. Through the operation panel, users can perform tasks such as parameter setting, status monitoring, and fault diagnosis. Below is an introduction to the functions of each key on the operation panel:

• Programming Key: Used to select between normal mode and programming mode. This key is effective whether the inverter is running or stopped. To modify parameters, users must press this key to enter programming mode.
• Function/Save Key:
  • Normal Mode: Pressing this key displays various information about the inverter’s status, such as target frequency, output frequency, current, and temperature.
  • Programming Mode: Pressing this key displays parameter contents and, when pressed again, saves any changed parameter values.
• ▲ Key: Increases parameter numbers or values. A short press results in step-by-step changes, while a long press leads to rapid changes.
• ▼ Key: Decreases parameter numbers or values.
• Shift Key: Used for shifting in programming mode and jogging in normal mode.
• Forward/Reverse Key: Toggles between forward and reverse rotation.
• Start Key: Initiates the output of the inverter.
• Stop/Reset Key: Stops operation and resets faults.

III. Parameter Setting and Password Management

1. Parameter Initialization

Although the user manual does not directly mention the steps for parameter initialization, users can achieve it through the following method:

• Enter programming mode and locate the parameter group that needs to be initialized.
• Restore the parameter values to their defaults.
• Save the parameters and exit programming mode.

2. Password Setting

To protect the inverter’s parameters from unauthorized modifications, users can set a password. Below are the relevant parameters for password setting:

• P008: Hidden password, with a range of 0-65535 and a default value of 00000 (no password). Users can set a password as needed.
• P009: Password input. When the value of P009 equals the hidden value of P008, P008 and other parameter values can be changed. After a power-off restart, P009 will be cleared, and the password must be re-entered to modify parameters.

3. Parameter Access Restrictions

Some parameters of the Xinshuangyuan AT Series Frequency Inverter are only applicable to certain models. For example, gray parameters are exclusive to advanced models with PID/485 functions and are invalid for standard models. Additionally, specific parameters are exclusive to the AT2 model (such as P97, P98) and time counter models (such as *93, *94). Users should pay attention to the applicable range of parameters when setting them.

IV. Implementation of External Control Functions

1. External Terminal Forward/Reverse Control

The Xinshuangyuan AT Series Frequency Inverter supports external terminal forward/reverse control. Below is the wiring method for the AT3 model:

• X4 Input Port 4: Line-controlled forward rotation. Short-circuiting X4 with COM activates the input signal.
• X5 Input Port 5: Line-controlled reverse rotation. Short-circuiting X5 with COM activates the input signal.

For AT1, AT4, and AT2 models, although the user manual does not directly mention the specific terminals for external terminal forward/reverse control, users can achieve forward/reverse control through multifunction input settings.

2. External Potentiometer Frequency Regulation

The Xinshuangyuan AT Series Frequency Inverter supports external potentiometer frequency regulation. Below are the wiring and parameter setting methods:

• Wiring: Users can achieve external potentiometer frequency regulation through external analog voltage input (VI1, 0-5V/10V) or external current signal input (CI, 4-20mA). Refer to the wiring diagram in the user manual for specific wiring methods.
• Parameter Settings:
  • P010: Source of operating frequency. Select external analog signal (2) or CI (3) as the frequency source.
  • Other relevant parameters (such as P000-P007) may need to be adjusted to match the input range of the external potentiometer.

V. Fault Codes and Troubleshooting Methods

The Xinshuangyuan AT Series Frequency Inverter provides detailed fault codes and troubleshooting methods. Below are some common fault codes and their corresponding troubleshooting methods:

• Err 1: Overcurrent/Output Short Circuit
  • Troubleshooting Method: Check the output circuit and motor for short circuits, and eliminate any short-circuit faults.
• Err 2: Undervoltage Protection
  • Troubleshooting Method: Check if the input power supply voltage is normal and eliminate any issues with low power supply voltage.
• Err 3: Overvoltage Protection
  • Troubleshooting Method: Check if the input power supply voltage is too high or if there is a fault in the inverter’s internal voltage detection circuit.
• Err 4: Drive Circuit Fault
  • Troubleshooting Method: Contact professional maintenance personnel to inspect and repair the drive circuit.
• Err 5: Start Input During Power-On
  • Troubleshooting Method: Check if there is an accidental start signal input during power-on and eliminate any misoperations or circuit faults.
• Err 6: Overcurrent Protection
  • Troubleshooting Method: Check if the motor and load are overloaded or if there is a fault in the inverter’s internal current detection circuit.
• Err 7: Timeout
  • Troubleshooting Method: Check the inverter’s runtime settings or related timer settings and eliminate any timeout faults.
• Err 8: Radiator Overheating
  • Troubleshooting Method: Check if the radiator is blocked, if the ambient temperature is too high, or if there is a fault in the inverter’s internal temperature detection circuit.
• Err 9: External Fault
  • Troubleshooting Method: Check the external control signal lines and equipment and eliminate any external faults.

VI. Conclusion

The user manual for the Xinshuangyuan AT Series Frequency Inverter is an essential guide for users to operate and maintain the inverter correctly. This document, based on the contents of the user manual, provides a detailed introduction to the operation panel functions, parameter setting methods, implementation of external control functions, and troubleshooting of fault codes. It is hoped that this document can assist users in better understanding and utilizing the Xinshuangyuan AT Series Frequency Inverter, thereby improving the operational efficiency and reliability of the equipment. In practical applications, users should refer to the user manual for operation and maintenance according to their specific needs and equipment models.

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The MIKOM MV series inverter is a crucial device in the field of industrial automation, and its user manual elaborates on key aspects such as equipment operation, parameter settings, and troubleshooting. This article provides systematic guidance on four core modules: operation panel functions, parameter settings, external control, and fault handling, based on the content of the manual.

1. Operation Panel Function Analysis

The operation panel is the direct interface for users to interact with the inverter, designed with both functionality and ease of use in mind. The panel’s main components include an LED display, function keys, and status indicators. The LED display shows real-time operating parameters such as output frequency, current, and voltage, and indicates operational status (e.g., RUN/STOP) and fault codes (e.g., Er.XX) through symbols. The function keys are clearly arranged, including:

• MENU/ESC Key: Used to enter the parameter settings menu or exit the current operation interface.
• ENTER Key: Confirms parameter modifications or enters submenus.
• RUN/STOP Key: Controls the inverter’s start and stop; pressing and holding it initiates emergency stop.
• MK Key: A multifunctional key whose function is defined by parameter P50.03 (e.g., inching control, free stop).
• Increment/Decrement Keys (>, <): Adjust parameter values or switch display pages.
• Shift Key (>>): Selects operation bits during parameter modification or cycles through display interfaces.

By using these keys in combination, users can perform operations such as parameter browsing, modification, and device control. For example, pressing and holding the MENU key for 3 seconds enters the password verification interface, where entering the correct password grants access to protected parameters.

2. Parameter Settings and Security Protection

1. Restoring Factory Default Parameters
To restore the device to its initial state, you can select the restoration range through parameter P50.20:

• P50.20=0: Restores basic menu parameters (P00-P19 groups).
• P50.20=1: Restores advanced menu parameters (P20-P49 groups).
• P50.20=2: Restores user-defined menu parameters (P50-P99 groups).

Operation steps: Enter the menu → select P50.20 → press ENTER to confirm → use the increment/decrement keys to choose the restoration range → press ENTER again to execute.

2. Password Setting and Removal
To prevent accidental operations, a user password can be set via parameter P50.00:

• Setting the password: Enter P50.00 → input a 4-digit password → press ENTER to confirm → the password takes effect after 1 minute of inactivity.
• Password verification: The system prompts for password entry when modifying protected parameters.
• Password removal: Power cycle the device or enter the correct password and press ENTER to lift protection.

3. Parameter Access Restrictions
Three levels of protection can be set via parameter P50.02:

• P50.02=0: No protection; all parameters can be modified.
• P50.02=1: Partial parameters locked (e.g., P00 group basic parameters are accessible, P20 group advanced parameters are locked).
• P50.02=2: All parameters locked; modifications require a password.

Additionally, the thousand’s place of parameter P50.03 can lock operation panel keys (e.g., disabling RUN/STOP operations), further enhancing security.

3. External Control Function Implementation

1. External Terminal Forward/Reverse Control
Configure terminal functions via parameter P10 group:

• Forward control: Set P10.01=1 (DI1 terminal as forward command).
• Reverse control: Set P10.02=2 (DI2 terminal as reverse command).
• Combined logic: Set multi-terminal combined logic via P10.03-P10.06 (e.g., DI1+DI3 for forward inching).

Wiring example: Connect the forward button to the DI1 terminal and COM terminal, and the reverse button to the DI2 terminal and COM terminal.

2. External Potentiometer Frequency Adjustment
Implementation steps:

• Parameter settings: Enter the P12 group → set P12.01=1 (AI1 as frequency reference source) → P12.03=0 (0-10V corresponds to 0-50Hz).
• Hardware wiring: Connect an external potentiometer (10kΩ) to AI1 (terminal 10) and GND (terminal 11).
• Debugging tips: Rotate the potentiometer and observe if the frequency value displayed on the LED changes linearly. Adjust P12.04 (filter time) if fluctuations occur.

4. Fault Codes and Handling Procedures

The manual lists over 20 fault codes and solutions. Below is a guide to common fault handling:

Fault Code	Fault Description	Possible Causes	Handling Steps
Er.01	Acceleration overcurrent	Sudden load change, short acceleration time	Extend acceleration time (P01.01), check load
Er.02	Deceleration overcurrent	Braking resistor failure, short deceleration time	Check braking unit, extend deceleration time (P01.02)
Er.07	Input phase loss	Poor power line contact	Check input voltage and wiring
Er.11	Motor overload	Excessive load, motor fault	Reduce load, check motor insulation
Er.15	Communication fault	Loose communication cable, protocol mismatch	Check wiring, verify communication parameters (P30 group)

Fault troubleshooting process:

1. Record the fault code (displayed on the LED or query historical records via P34 group).
2. Identify the cause using the fault list in the manual.
3. Follow the recommended steps (e.g., check power supply, adjust parameters, replace components).
4. Clear the fault record (P34.01=1) and restart the device.

5. Maintenance and Extended Functions

1. Communication Function
The device supports the Modbus RTU protocol (P30 group) and can be monitored via PLC or a host computer through an RS485 interface. Parameter settings example:

• P30.01=1 (Enable Modbus)
• P30.02=9600 (Baud rate)
• P30.03=2 (8 data bits, 1 stop bit, no parity)

2. Maintenance Recommendations

• Clean the cooling fan and filter regularly (every 6 months).
• Check the electrolyte capacitor capacity (every 2 years; replace if below 80%).
• Back up parameters (export to external storage via P50.21).

6. Conclusion

This article systematically summarizes the operation logic and advanced functions of the MIKOM MV series inverter based on the user manual. By mastering panel operations, parameter management, external control, and fault handling skills, users can significantly enhance equipment efficiency and safety. It is recommended to deepen understanding through practical operations and the manual’s diagrams, and to regularly attend manufacturer training to stay updated on technical advancements.

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I. Panel Function Introduction and Parameter Management Operations

1. Panel Function Introduction

The operation panel of the RiHong CHRH-G series inverter includes the following core buttons and indicators:

• RUN Key: Starts the inverter operation, defaulting to forward rotation.
• STOP/RESET Key: Stops the machine or resets faults.
• PRG Key: Enters parameter setting mode.
• ENTER Key: Saves parameter modifications.
• ▲/▼ Keys: Adjusts parameter values or switches monitoring items.
• ◄/► Keys: Modifies parameter digits or switches function groups.
• Analog Potentiometer: Manually adjusts frequency (requires setting the frequency reference channel to potentiometer mode).

LED Indicator Descriptions:

• Hz: Displays frequency unit.
• A/V: Displays current or voltage unit (green for current, red for voltage).
• ALM: Fault alarm indicator (red constantly lit or flashing).
• F/R: Rotation direction indicator (red for forward, green for reverse).

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2. Parameter Factory Default Settings

Steps:

1. Enter function code F0.13 (Parameter Initialization).
2. Set to 1 (Restore factory settings, retaining motor parameters) or 2 (Restore all parameters).
3. Press the ENTER key to confirm; the system will automatically exit after completion.

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3. Parameter Encryption and Decryption

Encryption Setup:

1. Enter function code FC.05 (User Password) and set a password (range: 10~65535).
2. Set function code F0.14 (Parameter Write Protection) to 2 (Prohibit modification of all parameters).

Decryption Operation:

1. After entering the correct password, set F0.14 to 0 or 1 to lift the protection.

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4. Parameter Access Restrictions

Set access permissions via F0.14:

• 0: Allows modification of all parameters (in stop state).
• 1: Only allows modification of frequency-related parameters (F0.02~F0.08).
• 2: Completely prohibits modification of parameters.

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II. External Terminal Forward/Reverse Control and Potentiometer Speed Regulation

1. External Terminal Forward/Reverse Control

Wiring Terminals:

• X1/X2/X3: Multi-function input terminals (default functions need redefinition).
• COM: Common terminal.

Parameter Settings:

1. Set F0.01 (Operation Command Channel) to 1 (Terminal Control).
2. Set F5.00 (X1 Function) to 12 (Forward Control) and F5.01 (X2 Function) to 13 (Reverse Control).
3. The corresponding direction starts when the terminal is closed and stops when disconnected.

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2. External Potentiometer Speed Regulation

Wiring Terminals:

• AI1: Analog Input 1 (0~10V/0~20mA).
• GND: Signal ground.

Parameter Settings:

1. Set F0.02 (Frequency Reference Channel) to 4 (AI1 Analog Reference).
2. Calibrate the AI1 input range via F6.00~F6.03 (default: 0~10V corresponds to 0~maximum frequency).
3. Adjust the potentiometer to regulate the output frequency in real-time.

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III. Fault Code Analysis and Solutions

Fault Code	Meaning	Possible Causes	Solutions
E001	Acceleration Overcurrent	Acceleration time too short, sudden load change	Extend acceleration time, check load
E005	Deceleration Overvoltage	Deceleration time too short, inertial load	Extend deceleration time, install braking resistor
E009	Power Module Fault	Output short circuit, poor heat dissipation	Check motor wiring, clean air ducts
E010	Heatsink Overheating	High ambient temperature, fan failure	Improve ventilation, replace fan
E013	External Device Fault	External fault signal input	Check external device wiring
E021	Operation Time Limit Reached	Cumulative operation timeout	Contact dealer to lift restriction
E022	Output Phase Loss	Loose or broken motor wiring	Check U/V/W terminal connections

General Fault Handling Steps:

1. Press the STOP/RESET key to reset.
2. Check monitoring parameters (d-21~d-28) to record the operating state during the fault.
3. Adjust relevant parameters or check hardware connections according to the manual.

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IV. Maintenance and Precautions

Daily Maintenance:

• Regularly clean the heat dissipation air ducts to ensure proper fan operation.
• Check terminal screws for looseness to avoid poor contact.

Insulation Testing:

• Disconnect all wiring, short-circuit the main circuit terminals, and test with a 500V megohmmeter.
• Do not perform insulation tests on control terminals.

Long-Term Storage:

• Store in a dry environment and power on every six months to activate electrolytic capacitors.

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Conclusion

The RiHong CHRH-G series inverter meets diverse industrial scenario demands through flexible terminal control, parameterized configuration, and multiple protection functions. Users must master panel operations, parameter logic, and fault troubleshooting methods to ensure efficient and stable operation of the equipment. For complex issues, it is recommended to contact the manufacturer’s technical support for professional guidance.

I. Introduction to the Operation Panel Functions and Parameter Settings

1.1 Overview of Operation Panel Functions

The Rhymedbus Inverter RM6 series comes equipped with an intuitive and user-friendly operation panel, which includes the following key functions:

• Power Indicator: Displays the power status of the inverter.
• Frequency Unit Indicator: Shows the current set or actual frequency unit (Hz).
• Voltage Unit Indicator: Displays the current voltage unit (V).
• Current Unit Indicator: Displays the current current unit (A).
• Program Key (PROG): Used to switch between parameter setting mode and monitoring mode.
• Function/Data Key (FUNC DATA): Enters parameter setting mode, returns to the set item, and switches monitoring screens.
• Set Knob: Adjusts frequency commands or other parameter settings.
• Run Key (RUN): Starts the inverter.
• Stop/Reset Key (STOP RESET): Stops the inverter or clears abnormal states.
• Increase/Decrease Keys: Used to change set items and parameter values.

1.2 Restoring Parameters to Factory Defaults

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

1. Enter Parameter Setting Mode: Press the “PROG” key to enter parameter setting mode.
2. Select Factory Default Setting: Use the Increase/Decrease keys to select the F_000 (Inverter Information) parameter item.
3. Choose Factory Default Restoration: Continue using the Increase/Decrease keys to select the corresponding factory default restoration option (e.g., dEF60 for 60Hz general-purpose factory defaults).
4. Confirm Restoration: Press the “FUNC DATA” key to confirm restoring the factory defaults.

1.3 Password Setting and Removal

The RM6 series inverter supports parameter locking to prevent unauthorized parameter modifications.

• Setting a Password: Enter the F_213 (Parameter Lock Password Input) parameter item, use the Set Knob to enter the password value (0-9999), and press the “FUNC DATA” key to confirm.
• Removing a Password: Enter the F_214 (Parameter Lock Decoding Input) parameter item, enter the password value, and press the “FUNC DATA” key to confirm, thereby removing the password lock.

1.4 Setting Parameter Access Display

Users can set the access level and display content of parameters according to their needs:

• Parameter Access Level: Set through the F_212 (Parameter Lock Parameter Display Selection) parameter item, which can choose whether to display locked parameters.
• Monitoring Screen Selection: In monitoring mode, use the “FUNC DATA” key to switch between different monitoring screens, such as output frequency, voltage, current, etc.

II. External Terminal Control and Speed Regulation Function Implementation

2.1 External Terminal Forward and Reverse Control

The RM6 series inverter supports forward and reverse control of the motor through external terminals, requiring the following wiring and settings:

• Wiring:
  • Connect the external control signals (such as buttons or relay contacts) to the inverter’s forward terminal (FWD) and reverse terminal (REV) respectively.
  • Ensure the common terminal (COM) is connected correctly.
• Parameter Settings:
  • Enter the F_001 (Start Control Selection) parameter item and set it to 0 or 1 (depending on the specific control mode).
  • Ensure the F_003 (Operator STOP Key Priority) parameter item is set to allow external terminal control (e.g., set to 0).

2.2 External Potentiometer Speed Regulation Function

Speed regulation of the inverter can be achieved through an external potentiometer, requiring the following wiring and settings:

• Wiring:
  • Connect the output terminal of the external potentiometer to the inverter’s Vin (analog input voltage) terminal.
  • Ensure the potentiometer’s common terminal and the other output terminal are connected to the inverter’s GND (ground) and Vin+ terminals respectively.
• Parameter Settings:
  • Enter the F_002 (Main Frequency Command Selection) parameter item and set it to 1 (controlled by analog signal).
  • Enter the F_124 (Analog Input Selection (Vin)) parameter item and ensure it is set to 1 (enable Vin input).

III. Fault Codes and Troubleshooting Methods

The RM6 series inverter features comprehensive fault diagnosis functionality. When a fault occurs, the corresponding fault code will be displayed on the operation panel. Here are some common fault codes, their meanings, and troubleshooting methods:

• EEr: EEPROM error protection. Possible causes include EEPROM data write errors or EEPROM component failures. The troubleshooting method is to restore all parameter settings to factory defaults and reboot. If the error persists, send it for repair.
• AdEr: A/D converter error protection. Possible cause is A/D converter failure. The troubleshooting method is to contact customer service for repair.
• GF: Ground fault protection. Possible causes include grounding of the inverter output or poor insulation of the motor and motor wires. The troubleshooting method is to check the insulation of the motor and motor wires, and replace them if necessary.
• OE: Overvoltage protection. Possible cause is excessively high DC bus voltage inside the inverter. Troubleshooting methods include increasing the deceleration time setting, installing a dynamic brake unit, checking if the power supply voltage is within the rated input range of the inverter, etc.
• OL: Motor overload protection. Possible cause is long-term overload operation of the motor. The troubleshooting method is to check the usage of the mechanical equipment and ensure the load is within the motor’s rated range.

When a fault occurs in the inverter, first check the fault code displayed on the operation panel and follow the troubleshooting guide in the user manual for corresponding actions. If the issue cannot be resolved by the user, professional maintenance personnel or customer support should be contacted promptly.

IV. Conclusion

The Rhymedbus Inverter RM6 series user manual provides detailed operation guidelines and fault handling information, helping users better understand and utilize the inverter. By familiarizing themselves with the operation panel functions, mastering parameter setting methods, understanding the implementation of external terminal control and speed regulation functions, and being familiar with fault codes and troubleshooting methods, users can operate and maintain the inverter equipment more efficiently. In practical applications, users should flexibly configure inverter parameters and functional options according to specific needs and site conditions to achieve optimal control effects and operational efficiency.

I. Detailed Explanation of Operation Panel Functions

1. Overview of Operation Panel Functions
The VEIHI Inverter AC310 series operation panel integrates multiple functions, supporting parameter settings, operational control, and fault diagnosis. Key functions include:

• Display Screen: Displays operational status, parameter values, and fault codes.
• Run Key: Starts/stops the inverter.
• Up/Down Keys: Adjust parameter values or select menu items.
• Confirm/Shift Key: Confirms settings or switches operation positions.
• Menu Key: Enters the function menu interface.
• Stop/Reset Key: Stops operation or resets faults.

2. Factory Parameter Settings

• Enter Parameter Settings: Press the “Menu Key” → Select “Parameter Settings”.
• Select Parameter Group: Use the up/down keys to choose a parameter group (e.g., F00, F01).
• Modify Parameter Values: After selecting a parameter, adjust its value with the up/down keys and press “Confirm/Shift Key” to save.
• Restore Factory Defaults: Press the “Menu Key” → Select “Restore Factory Defaults” → Confirm.

3. Password Setting and Removal

• Set Password:
  • Press the “Menu Key” → Select “Password Settings”.
  • Enter the default password (0000) → Press “Confirm/Shift Key” to save.
• Remove Password:
  • Press the “Menu Key” → Select “Password Settings”.
  • Enter the current password → Press “Confirm/Shift Key” → Reset the password to 0000.

4. Parameter Access Restrictions

• Enter Restriction Settings: Press the “Menu Key” → Select “Parameter Access Restrictions”.
• Set Permissions: Choose a parameter group and set access permissions (e.g., read-only, writable).
• Save Settings: Press “Confirm/Shift Key” to save.

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II. External Terminal Control and Speed Regulation Methods

1. External Terminal Forward/Reverse Control

• Wiring: Connect external signals to digital input terminals (e.g., X1, X2) and set terminal functions (Parameter F05.00).
• Parameter Settings:
  • F01.01=1 (External Terminal Control).
  • Set the corresponding terminal in F05.00 for forward/reverse control.

2. External Potentiometer Frequency Control

• Wiring: Connect the potentiometer output to analog input terminals (e.g., AI1, AI2) and set terminal functions (Parameter F05.04).
• Parameter Settings:
  • F01.02=2 (Frequency Reference Source Channel A = Terminal AI1 Reference).
  • Set the potentiometer output range in F05.50 and F05.53 (e.g., 0V~10V).

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III. Fault Codes and Troubleshooting Methods

1. Common Fault Codes

• E.SC1 (01): System fault during acceleration (short circuit, interference, overload).
• E.oC1 (05): Overcurrent during acceleration (overload, motor damage, too short acceleration time).
• E.Lu (13): Undervoltage during operation (unstable power supply, loose cables).
• E.oH1 (30): Rectifier module overtemperature (poor ventilation, high ambient temperature).

2. Fault Troubleshooting Methods

• System Fault (E.SC1):
  • Check the main circuit and eliminate short circuits.
  • Shorten the output cable or add an output reactor.
  • Reduce the load or replace with a higher-capacity inverter.
• Overcurrent Fault (E.oC1):
  • Reduce the load or replace with a higher-capacity inverter.
  • Increase the acceleration time (Parameter F01.22).
• Undervoltage Fault (E.Lu):
  • Check the stability of the power supply voltage.
  • Ensure the cable connections are secure.
• Overtemperature Fault (E.oH1):
  • Ensure proper ventilation.
  • Lower the ambient temperature or add cooling equipment.

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IV. Conclusion and Recommendations

The VEIHI Inverter AC310 series is a powerful and user-friendly variable frequency drive. By properly setting parameters, correctly wiring, and promptly addressing faults, users can fully leverage its performance and ensure stable equipment operation. This guide provides detailed information on operation panel functions, parameter settings, external control and speed regulation methods, and fault troubleshooting steps, offering valuable references for users. If issues arise during use, please contact our technical support team for professional assistance.

I. Introduction to the Operation Panel Functions

1.1 Overview of the Operation Panel

The operation panel of the Wisen Inverter FE550 integrates multiple functions, allowing users to set parameters, control operations, and diagnose faults through the buttons and display screen on the panel. The operation panel mainly includes the following parts:

• Display Screen: Used to display operating status, parameter values, and fault codes.
• Function Buttons: Including start, stop, frequency adjustment, and setting buttons.
• Navigation Buttons: Used to navigate through menus and select parameters.

1.2 How to Restore Factory Settings

In some cases, users may need to restore the inverter to its factory settings. Here are the steps to restore factory settings:

1. Press the PROG button to enter the parameter setting mode.
2. Use the ↑ or ↓ buttons to select parameter F0.50 (Parameter Restoration).
3. Set F0.50 to 30 (Restore all factory parameters).
4. Press the ENTER button to confirm, and the inverter will automatically restore to factory settings.

1.3 How to Encrypt and Unlock the Password

To prevent unauthorized parameter modifications, the FE550 series inverter supports parameter encryption. Here are the steps to encrypt and unlock the password:

Setting the Password:

1. Enter the parameter setting mode and select parameter F0.36 (User Password).
2. Enter a four-digit password (e.g., 1234) and press the ENTER button to confirm.

Unlocking the Password:

1. When modifying parameters, the system will prompt for a password.
2. Enter the correct password and press the ENTER button to unlock the password protection.

1.4 How to Set Parameter Access Restrictions

To further protect the inverter’s parameter settings, users can set parameter access restrictions:

1. Enter the parameter setting mode and select parameter F0.36 (User Password).
2. Set F0.36 to a non-zero value (e.g., 65555), indicating that the parameters are encrypted.
3. In the parameter modification mode, only by entering the correct password can parameters be accessed and modified.

II. External Terminal Control and Speed Regulation Settings

2.1 External Terminal Forward/Reverse Control

The FE550 series inverter supports forward/reverse control via external terminals. Here are the specific wiring and parameter setting steps:

Wiring Instructions:

• Forward Signal: Connect the external forward signal to the inverter’s X1 terminal.
• Reverse Signal: Connect the external reverse signal to the inverter’s X2 terminal.
• Common Terminal (GND): Connect the common terminal of the forward and reverse signals to the inverter’s GND terminal.

Parameter Settings:

1. Enter the parameter setting mode, select parameter F4.01 (X1 Terminal Function Selection), and set it to 1 (Forward Operation).
2. Select parameter F4.02 (X2 Terminal Function Selection) and set it to 2 (Reverse Operation).
3. Save the settings, and the inverter will implement forward/reverse control based on the external terminal signals.

2.2 External Potentiometer Speed Regulation

The FE550 series inverter supports speed regulation via an external potentiometer. Here are the specific wiring and parameter setting steps:

Wiring Instructions:

• Potentiometer Signal: Connect the output signal of the external potentiometer to the inverter’s A15 terminal.
• Potentiometer Power Supply: Connect the positive pole of the external potentiometer’s power supply to the inverter’s +10V terminal and the negative pole to the GND terminal.

Parameter Settings:

1. Enter the parameter setting mode, select parameter F0.02 (Main Frequency Command Selection), and set it to 5 (A15 Analog Input).
2. Select parameter F5.14 (Maximum Input of Attached Potentiometer) and set it to the actual output voltage range of the potentiometer (e.g., 10V).
3. Select parameter F5.15 (Maximum Input Corresponding Setting of Attached Potentiometer) and set it to 100.0% (indicating that the maximum input of the potentiometer corresponds to the inverter’s maximum frequency).
4. Select parameter F5.16 (Filtering Time of Attached Potentiometer) and set it to 0.10s (adjust according to actual needs).

With the above settings, the inverter will adjust the output frequency based on the input signal from the external potentiometer, achieving speed regulation.

III. Fault Codes and Solutions

During operation, the FE550 series inverter may encounter various faults, which will be displayed as fault codes on the screen. Here are common fault codes and their solutions:

3.1 Common Fault Codes

Fault Code	Fault Description	Possible Causes	Solutions
1002	Acceleration Overcurrent	Too short acceleration time, excessive load	Increase acceleration time, reduce load
1003	Deceleration Overcurrent	Too short deceleration time, excessive load	Increase deceleration time, reduce load
1004	Operating Overcurrent	Excessive load, motor fault	Check motor and load, reduce load
1008	Power Undervoltage	Input voltage too low	Check power supply voltage, ensure it is within the allowable range
1010	Inverter Overheating	High ambient temperature, poor heat dissipation	Improve heat dissipation conditions, reduce ambient temperature
1016	Communication Fault	Communication line or parameter error	Check communication line and parameter settings

3.2 Fault Handling Steps

1. Identify the Fault Code: View the fault code on the display screen to determine the fault type.
2. Analyze the Cause: Analyze possible causes based on the fault code and description.
3. Take Measures: Operate according to the solution to eliminate the fault.
4. Verify Recovery: After troubleshooting, restart the inverter to confirm its normal operation.

IV. Conclusion

The Wisen Inverter FE550 series is a powerful and easy-to-operate inverter control device. Through proper wiring and parameter settings, users can achieve external terminal control, speed regulation functions, and efficient fault diagnosis. During use, it is recommended that users read the user manual carefully, follow the correct operation steps, and ensure the stable operation and long-term reliability of the device. If you encounter problems that cannot be solved, you can contact our technical support team for professional help and guidance.

I. Introduction

The ANYHZ Inverter FST-650 Series stands out as a leader among general-purpose frequency converters, thanks to its high performance and extensive parameter features. This document aims to provide users with a comprehensive operational guide, covering aspects such as the operation panel functions, parameter settings, external control, and fault handling, to assist users in efficiently utilizing and maintaining this inverter.

II. Detailed Explanation of Operation Panel Functions

(I) Basic Functions of the Operation Panel

The operation panel of the FST-650 Series inverter is intuitively designed and comprehensive in functionality, including:

• Program Key: Used to enter or exit menus.
• Confirm Key: Navigates through menus step-by-step, sets, and confirms parameters.
• Up/Down Keys: Adjust data and function codes.
• Right Shift Key: Shifts right to select parameters when the inverter is stopped or in the operation interface; selects the digit to modify when changing parameters.
• Run Key: Starts the inverter in keyboard operation mode.
• Stop/Reset Key: Stops the operation in the running state; resets the inverter during a fault alarm.

(II) Restoring Factory Parameter Settings

1. Enter the parameter setting interface and locate F0.00.
2. Set F0.00 to the default value (usually 0).
3. Confirm the setting, and the inverter will restore to factory default settings.

(III) Password Setting and Removal

1. Enter the parameter setting interface and find FP.00.
2. Enter a new password and confirm.
3. To remove the password, set FP.00 to the default value (usually 0).

(IV) Parameter Access Restriction

1. Enter the parameter setting interface and locate FP.01.
2. Set the parameter access restriction level and confirm.
3. Users with different levels will have different access and modification permissions for parameters.

III. External Terminal Control and Potentiometer Speed Regulation

(I) External Terminal Forward/Reverse Control

• Terminal Connections: X1 (Forward Run FWD), X2 (Reverse Run REV).
• Parameter Settings:
  1. Enter the parameter setting interface and find F4.00 and F4.01.
  2. Set F4.00 to 1 (Forward) and F4.01 to 2 (Reverse).
  3. Confirm the settings, and the inverter will control forward/reverse based on the external terminal status.

(II) External Potentiometer Speed Regulation

• Terminal Connections: AI1 (Analog Input Terminal, connected to the potentiometer).
• Parameter Settings:
  1. Enter the parameter setting interface and find F0.03.
  2. Set F0.03 to 2 (Analog VCI Setting).
  3. Confirm the setting, and the inverter will regulate speed based on the potentiometer input signal.

IV. Fault Codes and Handling Methods

(I) Common Fault Codes

• Err01: Overcurrent Fault
• Err02: Overvoltage Fault
• Err03: Undervoltage Fault
• Err04: Overheat Fault
• Err05: Phase Sequence Fault
• Err06: Ground Fault

(II) Fault Handling Methods

• Err01: Check the load and cable connections to ensure the load is within the allowable range.
• Err02: Check the input voltage and cable connections to ensure the voltage is within the allowable range.
• Err03: Check the input voltage and cable connections to ensure the voltage does not fall below the set value.
• Err04: Check the inverter’s cooling conditions to ensure proper ventilation and that the heat sink is functioning correctly.
• Err05: Check the input power phase sequence and cable connections to ensure the phase sequence is correct.
• Err06: Check the ground connection and cable connections to ensure the ground is properly connected.

V. Conclusion

The ANYHZ Inverter FST-650 Series offers users a highly efficient and stable frequency conversion solution with its powerful features and flexible control methods. By mastering the operation panel functions, parameter settings, external control, and fault handling methods, users can fully leverage the performance advantages of this inverter and ensure its long-term stable operation. It is hoped that this document will provide strong support for users in using and maintaining the FST-650 Series inverter.

I. Introduction to Control Panel Functions

The control panel of the LS Servo APD-VS series is designed to be intuitive, comprising the following key components:

Operation Keys:

• Left/Right Keys: Used to switch between menu items for easy navigation.
• Up Key: Selects submenus or adjusts parameter values.
• Enter Key: Confirms selections or enters edit mode, executing commands such as tests or alarm resets.
  Display Screen: Displays real-time system operating status, including key parameters such as current speed, position, torque, and load, facilitating user monitoring and diagnostics.
  Menu Structure:
• Status Menu (Pd-001 to Pd-020): Displays real-time data such as operating status, speed, torque, and load.
• Alarm Menu (PA-101 to PA-120): Records historical alarms for fault tracing.
• System Menu (PE-201 to PE-220): Configures system parameters, such as motor ID, encoder type, and communication speed.
• Control Menu (PE-301 to PE-320): Adjusts control parameters, such as inertia ratio, position/speed gain, and resonance suppression.
• Analog Menu (PE-401 to PE-420): Sets analog inputs/outputs, such as speed and torque commands.
• Input/Output Menu (PE-501 to PE-520): Manages I/O settings, including position error limits and brake control.
• Speed Operation Menu (PE-601 to PE-620): Configures speed-related operations and test runs.
• Pulse Operation Menu (PE-701 to PE-720): Handles position control settings, including pulse logic and electronic gear ratio.
• Command Menu (PC-801 to PC-820): Executes operations such as alarm reset, test run, and gain adjustment.
  Connectors:
• CN1 (Control Signal): Used to connect external control signals, supporting communication with a host computer or PLC.
• CN2 (Encoder): Connects to the encoder, providing motor position and speed feedback.
• CN3 (Communication): Supports RS232 or other communication protocols for interaction with a PC or host controller.

II. Setting Passwords and Access Restrictions

The LS Servo APD-VS series user manual does not explicitly mention a traditional password system but provides a “Menu Data Lock” function to restrict unauthorized parameter modifications:

Menu Data Lock Function:

• Enable or disable the lock function through menu [PC-810].
• In the locked state, attempting to modify menu data will display an “Err3” error, indicating that the menu is locked.
• Unlocking Operation: Return to [PC-810] and press the Enter key to switch to the “unLock” state, allowing parameter modifications.

III. Jog Operation

Jog operation (also known as manual test operation) is an important function for testing motor response or debugging. Below are the detailed steps:

Starting Jog:

• Enter command menu [PC-803] and press the Enter key to initiate the manual test.
• The system will cancel existing alarms, display the test operation speed, and start the motor.
  Controlling Speed and Direction:
• Use the Up key to switch between different test speeds set in [PE-602] to [PE-608].
• Press the Right key for forward rotation (counterclockwise) and the Left key for reverse rotation (clockwise).
  Ending Operation:
• Press the Enter key to stop the test and return to the menu.

IV. Position Mode and External Pulse Forward/Reverse Control

Position mode is suitable for applications requiring precise positioning, such as CNC machine tools or robotic arms. Below are the steps to configure external pulse forward/reverse control:

Setting Position Mode:

• Set the operation mode to “2” (position mode) in menu [PE-601].
  Pulse Input:
• External pulse signals are input through pins 9 (PF+), 10 (PF-), 11 (PR+), and 12 (PR-) of CN1.
• Two input methods are supported: line-driven 5V or open-drain 24V, to be selected based on the host controller.
  Electronic Gear Ratio:
• Use [PE-702] to [PE-709] to set the electronic gear ratio, defining the ratio between input pulses and encoder pulses.
  Pulse Logic:
• Set the pulse logic to N logic or P logic in [PE-701], determining the pulse direction interpretation for forward/reverse rotation.

V. Speed Mode and Forward/Reverse Control

Speed mode is used to control motor speed and is suitable for applications requiring stable speed. Below are the configuration steps:

Setting Speed Mode:

• Set the operation mode to “1” (speed mode) in menu [PE-601].
  Speed Command:
• Analog Command: Input through SPDCOM (pin 27), with a range of -10V to +10V, where positive and negative values correspond to forward and reverse directions, respectively.
• Digital Command: Select digital speed commands 1 to 7 through combinations of SPD1 (pin 23), SPD2 (pin 22), and SPD3 (pin 21).
  Direction Control:
• Use DIR (pin 46) and STOP (pin 48) inputs to control direction, configured through [PE-514].

VI. Fault Code Analysis and Solutions

The LS Servo APD-VS series provides a detailed list of fault codes to help users quickly diagnose and resolve issues. Below are common fault codes and their solutions:

Fault Code	Meaning	Solution
Nor-off	Normal (servo off)	No action required
Nor-on	Normal (servo on)	No action required
L1.01	RS232 communication error/control operation error	Replace the drive
AL-01	Emergency stop	Check external DC24V power supply
AL-02	Power failure	Check main power lines
AL-03	Line fault	Check settings, CN2, U/V/W lines
AL-04	Motor output fault	Check U/V/W lines and IPM module
AL-05	Encoder pulse error	Check [PE-204] settings and CN2 lines
AL-06	Following error	Check [PE-502] settings, lines, limit switches, gain
AL-08	Overcurrent	Check output lines, motor/encoder settings, gain; replace the drive if necessary
AL-09	Overload	Check load, brake operation, lines, motor/encoder settings
AL-10	Overvoltage	Check input voltage, brake resistor, regenerative operation
AL-11	Overspeed	Check encoder settings, lines, gain
AL-14~17	Absolute encoder error	Check initial reset [PC-811], battery, encoder lines
AL-20~22	Flash/initialization error	Replace the drive
AL-23	Hardware error	Check [PE-203] settings
Err1	Parameter modification during servo on	Adjust parameters after turning off the servo
Err2	Data out of range	Input values within the valid range
Err3	Menu locked	Unlock through [PC-810]

General Solutions:

• Use [PC-801] or ALMRST (pin 17) to reset alarms.
• View alarm history [PA-101] to [PA-120] and use [PC-802] to clear history records to track new faults.
• Ensure all lines are connected correctly and parameters are set reasonably. If the problem persists, contact technical support.

Through this operation guide, users can better understand and use the LS Servo APD-VS series drive to ensure efficient and stable system operation.