Category: Electrical Equipment Manuals

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.

The KINGDA Electric Inverter A800 series is a powerful and flexible industrial automation device widely used in motor control and speed regulation. This article, based on its user manual and the provided fault code image (showing “EC.34 0.00”), details the operation panel functions, parameter initialization methods, password setting and removal, parameter access restriction settings, and the implementation of external terminal forward/reverse control and external potentiometer speed regulation. Additionally, for the situation where the EC.34 fault code is not explained in the manual, combined with feedback from the manufacturer’s technical staff, it analyzes its potential meaning and possible commercial operation background, and proposes solutions. The article is clearly structured and comprehensive, aiming to provide practical guidance for users.

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I. Introduction to Operation Panel Functions and Parameter Management

Operation Panel Functions

The operation panel of the KINGDA Electric A800 series inverter is the core component for user interaction with the device. As seen from the fault image, the panel is equipped with a red LED display, currently showing “EC.34 0.00”, indicating the device is in a fault state. The functions of the buttons and knobs on the panel are as follows:

• ESC (Exit): Exit the current menu or cancel the operation.
• PROG (Programming): Enter parameter programming mode.
• ENTER (Confirm): Confirm selection or enter the next level menu.
• Direction Keys (Up, Down, Left, Right): Navigate menus or adjust parameter values.
• STOP/RESET (Stop/Reset): Stop operation or reset faults.
• RUN (Run): Start the inverter.
• Knob: The central black knob is used to manually adjust parameters or scroll through menus.

These controls are intuitively designed for easy user operation. The user manual on page 24 (“Operation Panel and Status Parameters”) provides a detailed description.

Parameter Initialization Method

Parameter initialization is used to restore the inverter to factory settings, typically performed during first use or troubleshooting. The specific steps are as follows:

1. Press the PROG key to enter the main menu.
2. Use the direction keys to navigate to the “Parameter Initialization” option (see “Function Parameter Table” on page 28 of the manual).
3. Press ENTER to confirm; if a password is set, enter the password to unlock.
4. Select “Yes” and press ENTER to perform initialization; the device will automatically restart upon completion.

After initialization, all parameters are restored to default values, and the user needs to reconfigure them according to the application.

Password Setting and Removal

The password function protects parameters from unauthorized modification:

• Setting a Password:

1. Enter the “Programmable Management Parameter Array” (page 90 of the manual).
2. Find the password setting item (usually parameter P10.XX).
3. Enter a 4-digit password and press ENTER to save.

• Removing the Password:
• If the password is remembered, it can be cleared by entering the correct password in the same menu.
• If the password is forgotten, contact the manufacturer’s technical support and provide the serial number (e.g., “A800-250007G-AB00-250040G” on page 7 of the manual) to unlock.
• Alternatively, clear the password through parameter initialization, but this will reset all settings.

Parameter Access Restriction Setting

Parameter access restrictions further enhance security:

1. Enter the “Programmable Management Parameter Array” (page 90).
2. Find the “Parameter Lock” or “Access Level” option (e.g., P10.01).
3. Set to “Lock Mode”, with options for “Read-Only” or “Fully Locked”.
4. After saving the settings, unlocked users cannot modify parameters.

These features ensure the security and stability of the device parameters.

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

External Terminal Forward/Reverse Control

Controlling the inverter’s forward and reverse operation through external switches requires wiring and parameter settings:

• Wiring:
• Two-Wire Control (page 101 of the manual, “Two-Wire Switch Control for Inverter Forward and Reverse”):
  • Terminal FWD (Forward) connected to one end of the switch.
  • Terminal REV (Reverse) connected to the other switch.
  • COM terminal is the common ground.
• Three-Wire Control (page 101, “Three-Wire Self-Resetting Switch Control”):
  • SB1 (Start), SB2 (Stop), SB3 (Forward/Reverse Switch) connected to switches respectively.
  • COM terminal is the common ground.
• Parameter Settings:
• P02.01 (Start/Stop Control Source) set to “External Terminal Control”.
• P02.02 (Direction Control Source) set to “Terminal FWD/REV” or “Three-Wire Control”.
• P05.00 (Input Terminal Function Selection) assign functions to FWD, REV, or SB1/SB2/SB3.

External Potentiometer Speed Regulation

Adjusting the output frequency through an external potentiometer to achieve motor speed regulation:

• Wiring (page 100 of the manual, “External Potentiometer Connection to Inverter”):
• One end of the potentiometer connected to +10V (power), the other end to GND (ground).
• The middle tap connected to VI (analog input).
• Parameter Settings:
• P00.06 (Main Frequency Reference Source) set to “VI Analog Input”.
• P03.00 (Analog Input Range) set to 0-10V, corresponding to 0 to maximum frequency (P00.03).
• Calibrate P03.01 (Minimum Input Voltage) and P03.02 (Maximum Input Voltage) to match the potentiometer.

After correct configuration, users can flexibly control the inverter through switches or the potentiometer.

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III. Analysis of EC.34 Fault Code

Fault Phenomenon and Missing Manual Information

The inverter displays “EC.34 0.00” and cannot operate normally. Upon checking pages 92-121 of the user manual (“Fault Diagnosis and Solutions” to “Common EMC Interference Problem Rectification Suggestions”), no explanation for EC.34 is found. After consulting the manufacturer’s technical staff, the response was “need to contact the dealer to solve”, suggesting that EC.34 is not a standard fault code.

Speculation on Fault Meaning

Combining the feedback from technical staff and the fact that it is not mentioned in the manual, EC.34 may be a black-box operation code set by the dealer. The analysis is as follows:

• Clock Function Association: The A800 series may have a built-in operation time limit mechanism (parameters may be hidden in the “Management Parameter Array” on pages 49-90), such as setting a 3-month operation cycle.
• Artificial Shutdown: After the cycle ends, EC.34 is triggered, displaying a fault and shutting down, but the hardware is actually undamaged.
• Commercial Purpose: This design may be set by the dealer to recover outstanding payments, promote services, or force users to pay additional fees, which is a malicious commercial practice.

This practice exists in certain market environments but lacks transparency and may harm user rights.

Solution Methods

1. Contact the Dealer:

• Provide the serial number and purchase certificate, and request to lift the restriction.

1. Technical Unlocking:

• Try parameter initialization (see Part One), which may reset the time limit but will clear all settings.

1. Legal Rights Protection:

• If confirmed as malicious setting, keep evidence (manual, pictures, communication records) and complain to consumer protection agencies.

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IV. Summary and Suggestions

The KINGDA Electric A800 series inverter has an intuitive operation panel, rich functions, supports parameter initialization, password protection, and external control, suitable for various industrial scenarios. However, the EC.34 fault reveals potential commercial traps. Users should:

• Familiarize with the Manual: Master parameter settings and operation methods.
• Backup Parameters: Prevent loss of configuration during initialization.
• Choose Suppliers: Prioritize cooperation with reputable dealers.
• Keep Certificates: Ensure after-sales rights.

When facing unclear faults like EC.34, prioritize negotiating with the dealer; if unsuccessful, seek technical support or legal channels. This case reminds users to be vigilant against technical black-box operations and calls for the industry to standardize commercial behavior to protect user interests.

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Introduction to the Operation Panel

The operation panel of the HYPERMIZER-M RT4 series inverter provides various functions for parameter settings, status monitoring, and operational control. Below is an overview of the main functions of the operation panel:

Function Indicator Lights

• RUN: Indicates the running status. The light is off when the inverter is stopped and on when it is running.
• FWD/REV: Indicates forward or reverse operation. The light is off for forward operation and on for reverse operation.
• LOCAL/REMOT: Indicates the control mode. The light is off for keypad control, on for terminal control, and flashing for remote communication control.
• TUNE/TRIP: Indicates overload warning. The light is on for torque control mode, flashes slowly during self-learning, and flashes quickly during a fault.

Unit Indicator Lights

• Hz: Frequency unit.
• A: Current unit.
• V: Voltage unit.
• RPM: Speed unit.
• %: Percentage.

Display Area

The 5-digit LED display shows the set frequency, output frequency, and other monitoring data, as well as alarm codes.

Keypad Buttons

• PRG/ESC: Program key for entering or exiting the first-level menu.
• DATA/ENTER: Confirmation key for entering the next menu level and confirming parameter settings.
• △: Increment key for increasing data or function codes.
• ▽: Decrement key for decreasing data or function codes.
• □: Shift key for cycling through display parameters in stop or run mode and selecting the modification position for parameters.
• RUN: Run key for starting operation in keypad mode.
• STOP/RST: Stop/Reset key for stopping operation or resetting from a fault.
• QUICK/JOG: Multifunction key for switching functions based on P7-01 settings.

Setting and Removing Passwords

Setting a Password

1. Enter the function parameter mode and locate PP-00 (User Password).
2. Set a non-zero value as the user password.
3. Exit the function parameter mode; the password protection will be activated.

Removing a Password

1. Enter the function parameter mode and input the correct user password.
2. Locate PP-00 (User Password) and set it to 0.
3. Exit the function parameter mode; the password protection will be deactivated.

Setting Parameter Access Restrictions

1. Enter the function parameter mode and locate PP-04 (Function Code Modification Attribute).
2. Set to 0 for modifiable or 1 for non-modifiable.

Restoring Factory Default Settings

1. Enter the function parameter mode and locate PP-01 (Parameter Initialization).
2. Set to 01 to restore default values, excluding motor parameters.
3. Set to 02 to clear recorded information.

Forward/Reverse Control via Terminals and External Potentiometer Speed Control

Forward/Reverse Control via Terminals

1. Terminals: FWD (Forward), REV (Reverse).
2. Parameter Settings: Set P4-00 (D1 Terminal Function Selection) to 1 (Forward Operation) or 2 (Reverse Operation).

External Potentiometer Speed Control

1. Terminals: AI1 (Analog Input Terminal 1).
2. Parameter Settings: Set P0-03 (Main Frequency Source A Selection) to 4 (Panel Potentiometer Setting).

Fault Codes and Handling

Fault Codes

• 01: Overcurrent fault.
• 02: Undervoltage fault.
• 03: Overvoltage fault.
• 04: Overheating fault.
• 05: Phase loss fault.
• 06: Overload fault.
• 07: Short circuit fault.
• 08: Communication fault.
• 09: Encoder fault.
• 10: Parameter read/write fault.

Fault Handling

1. Overcurrent Fault: Check if the motor and load are normal; ensure the motor is not overloaded.
2. Undervoltage Fault: Check if the input voltage is normal; ensure the voltage is within the allowed range.
3. Overvoltage Fault: Check if the input voltage is too high; ensure the voltage is within the allowed range.
4. Overheating Fault: Check if the inverter’s cooling is normal; ensure the cooling fan is working properly.
5. Phase Loss Fault: Check if the input power supply has a phase loss; ensure the power supply is normal.
6. Overload Fault: Check if the motor and load are overloaded; ensure the load is within the allowed range.
7. Short Circuit Fault: Check if the motor and load are short-circuited; ensure the circuit is normal.
8. Communication Fault: Check if the communication lines are normal; ensure the communication equipment is working properly.
9. Encoder Fault: Check if the encoder is working properly; ensure the encoder signal is normal.
10. Parameter Read/Write Fault: Check if the parameter settings are correct; ensure the parameters are within the allowed range.

Conclusion

The user manual for the HYPERMIZER-M RT4 series inverter provides detailed operational guidance and fault handling methods, helping users correctly operate and maintain the inverter. By understanding the operation panel functions, setting passwords and parameter access restrictions, restoring factory default settings, implementing forward/reverse control via terminals, and external potentiometer speed control, as well as identifying and handling common faults, users can better utilize the inverter’s capabilities, improving work efficiency and extending the equipment’s lifespan.

The Chuanken SCKR1 series soft starter is a powerful digital soft-start solution designed for motors ranging from 11 kW to 850 kW. This guide provides a detailed explanation of the operation panel functions, parameter initialization, parameter copying to another soft starter, password setup and removal, external terminal start mode, bypass control implementation, wiring methods for main and control circuits (including schematic diagrams, with real images preferred if available), key parameters, and fault codes with their meanings and troubleshooting steps. This will help users operate the device efficiently and safely.

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1. Functions of the Operation Panel (Keyboard, HMI)

The operation panel (HMI) of the SCKR1 series soft starter is the core interface for user interaction, offering parameter configuration, status monitoring, and fault diagnosis. Below are its main functions (refer to PAGE16, 6.1 Operation Panel):

1. Display Screen:

• Shows real-time status (e.g., current, power, motor temperature) and programming details.
• Parameter 8D allows selection between real-time current or motor power display.
• The bottom half of the screen can switch between options like soft starter status, motor temperature, current, and power using the “▲” and “▼” buttons.

1. Button Functions:

• Menu Navigation Keys (▲/▼): Switch between menu options, parameters, or adjust parameter values.
• MENU Key: Enter menu or parameter editing mode, save parameter changes (includes STORE function).
• EXIT Key: Exit menu or parameter editing, cancel unsaved changes.
• ALT Key: Used with F1/F2 to access function logs or debugging tools.
• F1/F2 Shortcut Keys: Quick access to common tasks (functions defined by parameters 8B and 8C).
• L/R Key: Switch between Local and Remote control modes.

1. Status LED Indicators:

• Ready: Steady on indicates motor stopped and starter ready; blinking indicates waiting for restart delay or temperature check.
• Run: Steady on indicates motor running at full voltage; blinking indicates starting or stopping.
• Trip: Steady on indicates starter tripped; blinking indicates warning state.
• Local: Steady on indicates local control mode; off indicates remote control mode.
• If all LEDs are off, it indicates no control voltage.

1. Synchronization Function:

• The operation panel syncs with the soft starter’s parameters. If a different panel is inserted, a confirmation message appears, allowing the user to copy parameters from the panel to the starter or vice versa.

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2. How to Initialize Parameters

Initializing parameters ensures the soft starter matches the motor (refer to PAGE7, 3.1 Setting Procedure Summary):

1. Preparation:

• Ensure no power voltage is applied before connecting cables.
• Complete physical installation and control cable connections (see wiring section).

1. Initialization Steps:

• Step 1: Apply control voltage (A1, A2 terminals, 220-440 VAC).
• Step 2: Set date and time:
  1. Press “ALT” + “TOOL” to enter the “Tool” menu.
  2. Use “▲/▼” to navigate to the “Date/Time” screen.
  3. Press “ENTER” to enter edit mode.
  4. Use “▲/▼” to adjust date and time values, press “ENTER” to save.
• Step 3: Quick setup (for common applications):
  1. Press “MENU” to enter the main menu.
  2. Use “▲/▼” to select “Fast Setting,” press “ENTER” to access.
  3. Find your application in the list, press “ENTER” to start setup.
• Step 4: If no matching application, use the standard menu:
  1. Return to the main menu, select “Standard Menu.”
  2. Navigate to “Motor Data 1,” edit parameter 1A (motor rated current) to match the motor nameplate.
• Step 5: Press “EXIT” multiple times to exit the menu.

1. Notes:

• For advanced applications, refer to “Extended Menu” (PAGE31) and parameter descriptions (PAGE35).
• Use the built-in simulation tool (3.3 Simulation Tool) to verify wiring and control logic.

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3. How to Copy Parameters to Another Soft Starter

The operation panel supports parameter copying for easy configuration of multiple devices (refer to PAGE16, 6.1 Operation Panel):

1. Steps:

• Step 1: Save parameters to the operation panel on the source soft starter:
  1. Press “MENU,” enter “Load/Save Settings” (PAGE35).
  2. Select “Save to Display,” press “ENTER” to save.
• Step 2: Remove the panel and insert it into the target soft starter.
• Step 3: When the target device detects the new panel, it displays “New Display Detected”:
  1. Use “▲/▼” to select “Display to Starter.”
  2. Press “MENU” to confirm; parameters will be copied to the target starter.

1. Notes:

• If parameters don’t take effect, the target device loads default values; check compatibility.
• Ensure both devices are of the same model to avoid parameter conflicts.

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4. How to Set and Remove a Password

Password protection restricts parameter modifications (refer to PAGE28-29, 9.2 Parameter Write Protection & 9.3 Access Password):

1. Set a Password:

• Step 1: Press “MENU,” enter “Programming Menu.”
• Step 2: Navigate to “Access Password” (parameter 15A).
• Step 3: Enter a new password (default is 0000), press “ENTER” to save.
• Step 4: Set “Parameter Write Protection” (parameter 15B) to “Read Only” to restrict changes.

1. Remove a Password:

• Step 1: Enter the “Access Password” menu.
• Step 2: Input the current password, press “ENTER” to verify.
• Step 3: Change the password to “0000,” set parameter 15B to “Read/Write” to remove protection.

1. Notes:

• If the password is forgotten, contact the supplier for a reset, which may require a factory reset.

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5. How to Use External Terminal Start Mode

External terminal start is achieved via remote control inputs (refer to PAGE9, 4.4 Control Cable):

1. Configuration:

• The soft starter has 3 fixed remote inputs (e.g., C53, C54), supporting low-voltage, low-current control.
• Press “L/R” to switch to remote mode (Local LED off).

1. Wiring:

• Start: Short C53-C54 (start input).
• Stop: Open C53-C54.
• Reset: Short another input pair (configurable, see parameter 6M).

1. Parameter Settings:

• In the “Input” menu (PAGE74, 6 Input), configure parameters 6A/6F (input functions) to “Start/Stop/Reset.”

1. Notes:

• Ensure correct wiring; test by observing the corresponding LED activation.

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6. How to Implement Bypass Control

Bypass control bypasses the soft starter once the motor reaches full speed (refer to PAGE15, 5.2 Bypass Contactor):

1. Built-in Bypass:

• Models from 5.5 kW to 500 kW have built-in bypass, requiring no external contactor.
• Automatically switches; no additional operation needed during runtime.

1. External Bypass:

• Models without built-in bypass require an external bypass contactor.
• Contactor AC1 rating ≥ motor current.
• Wiring: Connect the bypass contactor in parallel with the soft starter outputs (2/T1, 4/T2, 6/T3).

1. Control:

• Configure relay outputs (parameters 7A-7L) to “Bypass,” which close when the motor reaches full voltage, activating the bypass contactor.

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7. Wiring (Main Circuit and Control Circuit)

Main Circuit Wiring (refer to PAGE10-11, 4.8-4.9)

• Input Terminals: 1/L1, 3/L2, 5/L3 connect to three-phase power.
• Output Terminals: 2/T1, 4/T2, 6/T3 connect to the motor.
• Grounding: 5.5-55 kW models have 1 ground terminal at the input; 75-500 kW models have 2 (one at input, one at output).
• Schematic (simplified text representation; refer to the manual for actual diagrams):

  [Power L1]---[1/L1]   [2/T1]---[Motor U]
  [Power L2]---[3/L2]   [4/T2]---[Motor V]
  [Power L3]---[5/L3]   [6/T3]---[Motor W]
  [Ground]------[Earth]

Control Circuit Wiring (refer to PAGE8-9, 4.2-4.4)

• Control Voltage: A1, A2 terminals connect to 220-440 VAC.
• Remote Inputs: C53-C54, etc., connect to external switches.
• Schematic:

  [220-440V]---[A1]   [C53]---[Start Switch]---[C54]
               [A2]   [Other Inputs]---[Stop/Reset Switch]

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8. Key Parameters

Below are critical parameters (refer to PAGE73-76, 12.2 Parameter Value):

• 1A: Motor rated current, matches the motor nameplate.
• 2A-2D: Start mode, ramp time, initial current, current limit; affect start performance.
• 4A-4F: Protection settings, e.g., start timeout, undercurrent, instantaneous overcurrent.
• 6A-6F: Input functions, define external terminal roles.
• 7A-7L: Relay output functions, e.g., bypass control.
• 15A-15B: Access password and write protection.

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9. Fault Codes, Meanings, and Solutions

Below are common fault codes (refer to PAGE81-82, 13.5 Trip Code):

1. 1 – Starting Time Limit:

• Meaning: Start time exceeded.
• Solution: Check parameter 4A, extend start time, or adjust load.

1. 2 – Motor Overload:

• Meaning: Motor overloaded.
• Solution: Check motor load, adjust parameters 1B-1D, cool down and restart.

1. 8 – Power Down/Power Circuit:

• Meaning: Power failure or circuit not energized.
• Solution: Check main contactor and fuses.

1. 15 – Starter Communication:

• Meaning: Communication failure.
• Solution: Check interface connections, contact supplier.

For more faults, refer to PAGE81-82. Disconnect power before troubleshooting.

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The PROMPOWER Inverter PD310 Series is a powerful and versatile low-voltage inverter suitable for industrial automation scenarios that require high dynamic performance and a wide range of speed regulation. To help users better master its usage, this document provides a detailed English user guide based on the Russian user manual. The content covers the functions of the operation panel and related settings, external control implementation methods, and diagnostic and handling procedures for fault codes.

I. Introduction to Operation Panel Functions and Related Settings

The operation panel is the core tool for user interaction with the PD310 Series inverter. Through its keys and display, users can perform operations such as parameter viewing, modification, and device control. This section will introduce the functions of the operation panel in detail and explain how to restore factory settings for parameters, set and eliminate passwords, and set parameter access restrictions.

1.1 Introduction to Operation Panel Functions

The operation panel of the PD310 Series inverter includes a display and multiple function keys for displaying the running status and executing operations. According to Chapter 5 “Приступаем к работе” (Getting Started) of the manual, the main functions are as follows:

• Display: Displays the current running status (such as frequency, voltage), parameter values, and fault codes.
• Key Functions:
  • PRG (Programming Key): Enters or exits the programming mode to access the parameter setting menu.
  • ENTER (Confirm Key): Confirms parameter modifications or enters the next level of the menu.
  • UP (Up Key): Increases the parameter value or scrolls up the page.
  • DOWN (Down Key): Decreases the parameter value or scrolls down the page.
  • SHIFT (Shift Key): Switches between the parameter number and parameter value.
  • RUN (Run Key): Starts the inverter.
  • STOP/RESET (Stop/Reset Key): Stops the inverter operation or resets the fault status.

Operation Example: To modify a parameter, the user can press the PRG key to enter the programming mode, use the UP/DOWN keys to select the parameter number, press the ENTER key to enter the parameter value editing mode, use the UP/DOWN keys to adjust the value, and finally press the ENTER key to save.

1.2 Restoring Factory Settings for Parameters

To restore the inverter parameters to the factory default values, follow the steps in Section 5.3 “Сброс на заводские настройки” (Restoring Factory Settings) of the manual:

1. Press the PRG key to enter the programming mode.
2. Use the UP/DOWN keys to select the parameter group “F0”.
3. Press the ENTER key to enter the “F0” group.
4. Select the parameter “F0-00” (usually the factory reset parameter).
5. Press the ENTER key to enter the editing mode and set the value to “1” (indicating factory reset).
6. Press the ENTER key to confirm. The inverter will automatically restart, and the parameters will be restored to the factory values.

Note: This operation will clear all user settings. It is recommended to back up important parameters in advance.

1.3 Setting and Eliminating Passwords

The PD310 Series supports password protection to prevent unauthorized parameter modifications. The steps for setting and eliminating passwords are as follows:

• Setting a Password:
  1. Press the PRG key to enter the programming mode.
  2. Select the parameter group “F0”.
  3. Enter the parameter “F0-01” (password setting parameter).
  4. Input a 4-digit password (e.g., 1234) and adjust the value using the UP/DOWN keys.
  5. Press the ENTER key to confirm. The password setting takes effect.
  6. The password must be entered the next time parameter access is required.
• Eliminating a Password:
  1. Press the PRG key to enter the programming mode.
  2. Input the current password to unlock parameter access.
  3. Enter the parameter “F0-01”.
  4. Set the value to “0”.
  5. Press the ENTER key to confirm. The password is cleared.

1.4 Setting Parameter Access Restrictions

To prevent accidental operations, the PD310 allows restricting access permissions for certain parameters. The specific operations are as follows:

• Setting Access Restrictions:
  1. Press the PRG key to enter the programming mode.
  2. Select the parameter group “F0”.
  3. Enter the parameter “F0-02” (access restriction setting).
  4. Set the parameter value to the number of the parameter group to be restricted (e.g., set to “1” to restrict the F1 group).
  5. Press the ENTER key to confirm. The restricted parameter group cannot be accessed or modified.
• Lifting Access Restrictions:
  1. Press the PRG key to enter the programming mode.
  2. Input the password (if set) to unlock.
  3. Enter the parameter “F0-02”.
  4. Set the value to “0”.
  5. Press the ENTER key to confirm. All parameter groups resume accessible status.

Through the above settings, users can flexibly manage parameter permissions and ensure system security.

II. External Control Implementation

The PD310 Series inverter supports motor forward/reverse control and speed regulation through external terminals. This section will introduce how to achieve external terminal forward/reverse control and external potentiometer speed regulation through wiring and parameter settings.

2.1 External Terminal Forward/Reverse Control

External terminal forward/reverse control is achieved through digital input terminals (DI) and the common terminal (COM). According to Section 4.5 “Клеммы управления” (Control Terminals) of the manual:

• Wiring:
  • Forward Switch: Connect DI1 and COM terminals.
  • Reverse Switch: Connect DI2 and COM terminals.
• Parameter Settings:
  1. Press the PRG key to enter the programming mode.
  2. Select the parameter group “F1”.
  3. Set “F1-00” (control mode) to “1” (terminal control).
  4. Set “F1-01” (DI1 function) to “1” (forward command).
  5. Set “F1-02” (DI2 function) to “2” (reverse command).
  6. Press the PRG key to exit.
• Operation Mode: When DI1 is closed, the motor runs forward; when DI2 is closed, the motor runs reverse. If both DI1 and DI2 are closed simultaneously, the motor may stop (depending on the parameter configuration).

2.2 External Potentiometer Speed Regulation

External potentiometer speed regulation achieves speed adjustment through analog input terminals (AI). According to Section 4.5 of the manual:

• Wiring:
  • Potentiometer Middle Tap: Connect to the AI1 terminal.
  • Potentiometer One End: Connect to the +10V terminal.
  • Potentiometer Other End: Connect to the GND terminal.
• Parameter Settings:
  1. Press the PRG key to enter the programming mode.
  2. Select the parameter group “F2”.
  3. Set “F2-00” (speed reference method) to “1” (AI1 analog input).
  4. Set “F2-01” (AI1 minimum input) to 0V (minimum potentiometer voltage).
  5. Set “F2-02” (AI1 maximum input) to 10V (maximum potentiometer voltage).
  6. Set “F2-03” (AI1 minimum frequency) to 0Hz.
  7. Set “F2-04” (AI1 maximum frequency) to 50Hz (or the maximum frequency required by the user).
  8. Press the PRG key to exit.
• Operation Mode: Rotating the potentiometer linearly adjusts the motor speed from 0Hz to 50Hz.

III. Fault Codes and Handling

The PD310 Series inverter may encounter faults during operation and prompt the user with fault codes. This section lists common fault codes and their meanings based on Section 6.1 “Коды ошибок” (Fault Codes) of the manual and provides handling methods.

3.1 Fault Code List

The following are common fault codes and their meanings (refer to page 201 of the manual):

• Err01: Short-circuit protection (inverter output short-circuit).
• Err08: Overvoltage during acceleration.
• Err09: Overvoltage during deceleration.
• Err10: Overvoltage at constant speed.
• Err11: Undervoltage.
• Err12: Input phase loss.
• Err13: Output phase loss.
• Err14: Inverter overload.
• Err15: Motor overload.
• Err17: Inverter overtemperature.
• Err21: External fault.
• Err23: Communication fault.

3.2 Fault Handling Methods

For the above faults, the following are the recommended handling methods:

• Err01 Short-circuit Protection:
  • Check if the motor and output lines are short-circuited.
  • Ensure correct wiring and eliminate grounding faults.
• Err08/Err09/Err10 Overvoltage Faults:
  • Check if the input voltage is too high.
  • Confirm if the braking resistor is correctly connected or damaged.
  • Extend the acceleration/deceleration time parameters (F0 group).
• Err11 Undervoltage:
  • Check if the power supply voltage is below the requirement.
  • Check if the power supply line connections are good.
• Err12 Input Phase Loss:
  • Check if the three phases of the input power are complete.
  • Ensure secure wiring.
• Err13 Output Phase Loss:
  • Check if the motor wiring is loose or disconnected.
  • Verify if the motor is normal.
• Err14 Inverter Overload:
  • Reduce the load or replace with a higher-power inverter.
  • Check if the parameter settings are reasonable.
• Err15 Motor Overload:
  • Check if the load exceeds the motor capacity.
  • Adjust the motor protection parameters (F5 group).
• Err17 Inverter Overtemperature:
  • Check if the cooling fan is operating normally.
  • Clean the heat sink to ensure good ventilation.
• Err21 External Fault:
  • Check if the external fault input terminal (DI) is triggered.
  • Eliminate the external fault source.
• Err23 Communication Fault:
  • Check if the communication line connections are correct.
  • Verify if the communication parameters (F11 group) match.

Handling Process: When a fault occurs, record the code and press the STOP/RESET key to reset. If the issue cannot be resolved, troubleshoot according to the above methods and contact PROMPOWER technical support if necessary.

Conclusion

Through this document, users can fully understand the operation and application of the PROMPOWER Inverter PD310 Series. The functions of the operation panel provide convenience for parameter management, and restoring factory settings, password protection, and access restrictions enhance system security. External terminal forward/reverse control and potentiometer speed regulation provide users with flexible control methods. The identification and handling methods for fault codes help quickly resolve issues and ensure stable equipment operation. This document aims to provide users with practical guidance and improve equipment usage efficiency.

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I. Product Overview and System Configuration

1.1 Product Introduction

The ZTE ZXDU68 S601/T601 Series Integrated Power Supply is an intelligent unattended power system designed specifically for communication networks. It adopts a modular design, supports -48V DC output, and can be configured with up to 12 ZXD2400 (V4.0) 50A high-frequency switching rectifiers, achieving a total output current of 600A. The system features comprehensive monitoring capabilities and supports remote management, making it suitable for access networks, remote switching stations, mobile base stations, and other scenarios.

Key Features:

• High Efficiency and Energy Saving: The rectifiers use active power factor correction (PFC) technology, with an input power factor >0.99 and efficiency >90%.
• Intelligent Management: The centralized monitoring unit supports “Three Remotes” (remote measurement, remote signaling, remote control) functions, enabling real-time monitoring of voltage, current, temperature, and other parameters.
• Flexible Expansion: Supports N+1 redundancy backup, and the rectifiers support hot-swappable, plug-and-play functionality.
• Multiple Protections: Equipped with C-class, D-class, and DC lightning protection modules, and supports battery hierarchical load shedding protection.

1.2 Model and Configuration

• Model Differences:
  • ZXDU68 S601: 2-meter-high cabinet, with space below for installing inverters or batteries.
  • ZXDU68 T601: 1.6-meter-high cabinet, with other functions identical to S601.
• Standard Configuration:
  • AC Distribution: Single 100A input, 2 standby outputs.
  • DC Distribution: 4 primary load shedding circuits, 2 secondary load shedding circuits, 2 battery inputs.
  • Monitoring Unit: 1 set, supporting RS232/RS485 communication interfaces.
  • Rectifiers: 12 ZXD2400 (V4.0) rectifiers.

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II. Safety Operation Guidelines

2.1 Safety Warnings

• High Voltage Danger: Disconnect the power before operation and avoid working on live cables.
• Anti-Static Measures: Wear an anti-static wrist strap and ground it before contacting circuit boards.
• Tool Requirements: Use dedicated insulated tools and prohibit the use of non-standard tools.

2.2 Operation Precautions

1. Installation Environment: The equipment should be placed in a dry, well-ventilated environment with a temperature range of -5℃~45℃.
2. Wiring Specifications:
   • AC input must comply with three-phase five-wire or single-phase three-wire systems.
   • DC output must strictly distinguish polarity to avoid short circuits.
3. Maintenance Requirements: Regularly check the status of lightning protectors (window color), the tightness of cable connections, and the cleanliness of the cooling air ducts.

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III. System Structure and Working Principle

3.1 System Structure

The ZXDU68 system consists of four core units:

1. AC Distribution Unit:
   • Function: Mains access, lightning protection, and standby output distribution.
   • Key Components: C-class lightning protector, D-class lightning protection box, AC input circuit breaker.
2. Rectifier Group:
   • Function: Converts AC to -48V DC, supports hot-swappable.
   • Indicator Lights: Green “IN” indicates normal input, green “OUT” indicates normal output.
3. DC Distribution Unit:
   • Function: Distributes DC power to loads and batteries, supports primary/secondary load shedding protection.
   • Key Components: Load fuses, battery fuses, DC lightning protection box.
4. Monitoring Unit:
   • Function: Data acquisition, parameter setting, and alarm management.
   • Core Boards: PSU (Power Management), RSB (Rectifier Signal), SCB (Signal Conversion).

3.2 Working Principle

• AC Input: Mains power is distributed to rectifiers and standby outputs after lightning protection.
• Rectification Conversion: Rectifiers convert AC to DC and output it in parallel to the DC distribution.
• Battery Management: The monitoring unit automatically switches between float and equalization charging modes based on battery status, supporting temperature compensation.
• Load Protection: When the battery voltage falls below the set threshold, the system performs hierarchical load shedding (primary load shedding and secondary load shedding).

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IV. Monitoring Unit Operation Guide

4.1 Interface and Button Functions

• Operation Interface:
  • LCD Display: Real-time display of voltage, current, and alarm information.
  • Buttons: ▲/▼ keys to switch menus, Enter key to confirm, Esc key to return.
• Indicator Lights:
  • PWR (Power), RUN (Running), ALM (Alarm) status lights.

4.2 Main Function Operations

1. Information Query:
   • Path: Main Menu → 【Information】 → View DC output, battery status, AC input, etc.
   • Supports real-time data, historical alarm records, and discharge record queries.
2. Parameter Setting:
   • Float Charging Voltage: 53.5V (default), range 42.0V~58.0V.
   • Equalization Charging Cycle: 180 days (default), range 15~365 days.
   • Path: Main Menu → 【Control】 → Enter password (default 0000) → Set float charging voltage, equalization charging cycle, etc.
   • Key Parameters:
3. Alarm Handling:
   • Real-time alarms are displayed in the 【Alarm】 menu, with audio and visual alerts.
   • Historical alarms can be traced through the 【Records】 menu.

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V. Routine Maintenance and Fault Handling

5.1 Routine Maintenance Process

1. Startup Steps:
   • Disconnect load and battery fuses → Close AC input circuit breaker → Start rectifiers → Close standby output → Restore load.
2. Shutdown Steps:
   • Disconnect load and battery fuses → Turn off rectifiers → Disconnect AC input.

5.2 Regular Inspection Items

• Lightning Protectors: Check the window color of C-class lightning protectors (green is normal, red requires replacement).
• Cooling System: Clean fan and air duct dust to ensure cooling efficiency.
• Cable Connections: Check input/output terminals for looseness to avoid poor contact.

5.3 Common Fault Handling

Fault Type	Handling Method
AC Power Failure	Activate backup oil machine power supply and check mains recovery.
Rectifier Fault	Replace the faulty rectifier and ensure N+1 redundancy.
Low Battery Voltage	Check battery capacity settings and initiate equalization charging to repair.
DC Output Overvoltage	Check rectifier output voltage and replace abnormal modules.

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VI. Appendix and Technical Support

6.1 Technical Specifications Quick Reference

• Input Voltage: 80V~300V AC (phase voltage).
• Output Voltage: -48V DC (range -42V~-58V).
• Protection Rating: IP20, compliant with YD/T 1058-2000 standard.

Conclusion
The ZTE ZXDU68 Series Integrated Power Supply provides stable power protection for communication networks with its intelligent design and high reliability. Users can maximize equipment efficiency and reduce operational risks by mastering the operation and maintenance points in this guide. It is recommended to participate in regular ZTE official training to obtain deeper technical support.

Introduction

As a high-performance vector inverter, the Lingshida LSD-C7000 series is widely used in industrial drive applications. This guide aims to provide users with an in-depth understanding of the inverter’s operation panel functions, parameter settings, external control, and troubleshooting, ensuring efficient and safe operation of the equipment.

I. Operation Panel Functions and Key Parameter Settings

1.1 Introduction to Operation Panel Functions

The LSD-C7000 series inverter’s operation panel integrates a variety of function keys and status indicators, including:

• Function Keys: RUN (run), STOP (stop), JOG (jog), PU/EXT (operation mode switch), SET (confirm), MODE (mode selection), etc.
• Status Indicators: RUN (green, running status), STOP (red, stop status), F/R (forward/reverse indication), ALARM (fault alarm), etc.
• Display Screen: Real-time display of set frequency, output current, voltage, power, speed, and other key parameters.

1.2 Factory Reset of Parameters

When needing to reset the inverter parameters, follow these steps:

1. Enter programming mode: Press the MODE key to select parameter setting mode (usually displayed as “Pr” or “P”).
2. Set the reset parameter: Enter Pr001=11111 (specific reset code) via the numeric keys.
3. Confirm execution: Press the SET key to confirm, and the inverter will automatically restart and restore all parameters to their factory defaults.

1.3 Password Setting and Access Restrictions

• Password Setting:
  • Set a 4-digit password (range: 0-65535) via parameter Pr800.
  • After setting, accessing protected parameters (such as Pr001-Pr800) requires entering the password.
• Password Elimination: Set Pr800 to 0 to remove password protection.
• Access Restrictions: By setting Pr800 to an odd or even number, access permissions for different parameters can be controlled hierarchically.

II. External Terminal Control and Speed Regulation Configuration

2.1 Forward/Reverse Control Wiring and Parameter Settings

• Wiring Method:
  • Connect external switch or relay contacts to the inverter control terminals S1 (forward) and S2 (reverse) respectively.
  • Ensure that the control circuit uses shielded wires to avoid electromagnetic interference.
• Parameter Settings:
  • Pr006=1: Select terminal control mode.
  • Pr301=1 (forward function), Pr302=2 (reverse function): Assign terminal control logic.

2.2 Potentiometer Speed Regulation Wiring and Parameter Settings

• Wiring Method:
  • Connect the potentiometer output terminal to the inverter’s analog input terminal FV, and connect it to GND.
  • It is recommended to use a 10kΩ linear potentiometer to obtain smooth speed regulation.
• Parameter Settings:
  • Pr004=1: Select analog input as the frequency command source.
  • Pr203=100% (gain), Pr204=0% (offset): Calibrate the potentiometer output range.

III. Fault Code Analysis and Solutions

3.1 Common Fault Codes and Their Meanings

Fault Code	Fault Name	Possible Causes
Uv1	Undervoltage	Input voltage is below 70% of rated value
OC	Overcurrent	Motor overload, short circuit, or parameter setting error
OL1	Motor Overload	Prolonged overload operation
SP	Input Phase Loss	Power supply phase loss or loose wiring
SPO	Output Phase Loss	Motor winding damage or poor contact

3.2 Fault Handling Procedures

1. Uv1/SP Handling:
   • Check if the power supply voltage is within the rated range (e.g., 380V±15%).
   • Ensure that the terminal connections are secure to avoid poor contact.
2. OC/OL1 Handling:
   • Reduce the load or adjust the acceleration time parameter (e.g., Pr005).
   • Check the motor insulation to rule out winding short circuits.
3. SPO Handling:
   • Test the motor winding resistance and repair open or short circuits.
   • Check the inverter output contactor contacts to ensure reliable conduction.

IV. Comprehensive Usage Suggestions

4.1 Regular Maintenance Items

• Clean the Heat Sink: Clean the heat sink dust quarterly to prevent overheating.
• Parameter Backup: Regularly back up parameter settings via the operation panel or dedicated software.
• Capacitor Inspection: Test the DC bus capacitor capacity every two years, and replace it if it is below 80%.

4.2 Safe Operation Practices

• Grounding Protection: Ensure reliable grounding of the inverter and motor, with a grounding resistance ≤4Ω.
• Prohibited Operations: Do not disconnect the control cable during operation to avoid signal interference causing misoperation.
• Environmental Adaptation: Avoid prolonged operation in environments with humidity >90% or temperature >45℃.

Through this guide, users can fully grasp the core operation and troubleshooting skills of the LSD-C7000 series inverter. It is recommended to combine the actual working conditions of the equipment and refer to the electrical schematic diagram in the manual for in-depth debugging to fully utilize the equipment’s performance. For complex faults, contact Lingshida’s technical support team promptly for professional guidance.