Category: Industrial control technology

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

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Understanding and Solving A5001 Alarm Fault in ABB ACS510/ACS550/ACH550 Series Drives

When using ABB’s ACS510, ACS550, and ACH550 series of Drives, users may encounter the “A5001” alarm fault. This fault typically indicates that there is no response from the drive, meaning the operator panel is unable to read information from the main board despite being powered on and displaying. This article will provide a detailed analysis of the A5001 alarm fault based on ABB’s ACS510 manual and practical experience, along with targeted solutions.

ACS510 generates A5001 alarm

I. Overview of A5001 Alarm Fault

When the ABB ACS510/ACS550/ACH550 series of drives displays the “A5001” alarm, the operator panel usually shows this error code, and pressing any button has no effect. According to the ABB manual, the A5001 alarm represents “No Response from Drive,” indicating that although the operator panel is powered on and displaying, it is unable to communicate with the main board.

II. Analysis of Fault Causes

1. Operator Panel Failure

The operator panel itself may have issues, such as damage to the communication interface with the main board. In this case, even though the operator panel is powered on and displaying, it cannot exchange data with the main board.

2. Connection Cable Issues

The connection cable between the operator panel and the main board uses a network cable format. If the connectors on the cable are not properly seated or the cable is internally damaged, communication will be interrupted.

3. Main Board Failure

Main board failures are also a common cause of the A5001 alarm. Damage to the CPU chip or other key components on the main board will prevent it from functioning normally, thereby disrupting communication with the operator panel.

4. Fan Failure

If the fan is damaged or not rotating, it may affect the operating voltage of the main board, causing it to malfunction. While this scenario is less common, it still needs to be considered.

5. Power Board Issues

Although less frequently encountered in practice, abnormal power supply from the power board can also trigger the A5001 alarm. In such cases, the 10VDC and 24VDC voltages on the power board can be measured to confirm its functionality.

Internal diagram of ABB VFD

III. Fault Solutions

1. Replace the Operator Panel

If the operator panel itself is suspected to be the problem, a spare operator panel can be tried. Before replacement, ensure that the new panel is compatible with the inverter model.

2. Check and Replace the Connection Cable

Inspect the connection cable between the operator panel and the main board for any damage. If the cable is damaged or the connectors are not properly seated, replace the cable or remake the connectors. To rule out cable issues, the operator panel can be directly connected to the main board’s socket for testing.

3. Replace the Main Board

If it is confirmed that the main board is faulty, it needs to be replaced. Before replacing the main board, back up the parameter settings on the original board and reconfigure them on the new board to ensure the inverter functions normally.

4. Check and Replace the Fan

If fan failure is suspected, temporarily disconnect the fan’s working plug and conduct a power-on test. If the fault disappears after removing the fan, it indicates that the fan is indeed defective and needs to be replaced.

5. Check the Power Board

Although less common, power board issues cannot be ruled out. The 10VDC and 24VDC voltages on the power board can be measured to confirm its normal operation. If abnormal voltages are detected, further inspection of the power board or contact with professional maintenance personnel is recommended.

ABB VFD fan replacement

IV. Conclusion

When encountering the A5001 alarm fault in ABB’s ACS510/ACS550/ACH550 series of drives, users should first preliminarily diagnose the fault cause based on the fault symptoms and manual content. Then, they can follow the solutions provided in this article to troubleshoot and resolve the issue step by step. During troubleshooting, safety precautions should be taken to avoid further damage to the inverter. Additionally, users are advised to regularly maintain and service the inverter to reduce the likelihood of faults occurring.

Through the detailed analysis and solutions provided in this article, we hope to help users better understand and handle the A5001 alarm fault in ABB’s ACS510/ACS550/ACH550 series of drives, ensuring their normal operation and production efficiency.

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User Manual Guide for Delta Inverter VFD-B Series

I. Operating Panel Function Description and Parameter Settings

1. Operating Panel Function Description

The Delta Inverter VFD-B series features an intuitive operating panel with various functions and a display screen. The panel includes buttons such as RUN, STOP, ▲ (frequency increase), ▼ (frequency decrease), MODE, and an LCD display to show current operating status and parameter settings.

Function diagram of Delta inverter operation panel

2. Restoring Factory Defaults

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

  1. Enter Parameter Setting Mode: Press the MODE button to enter parameter setting mode.
  2. Select User Parameters: Use the ▲ and ▼ buttons to select parameter group 00 (User Parameters).
  3. Select Parameter Reset: Continue using the ▲ and ▼ buttons to select parameter 00-02 (Parameter Reset Setting).
  4. Set Factory Defaults: Set the value of parameter 00-02 to 09 or 10, corresponding to different voltage and frequency factory default settings.
  5. Save and Exit: After confirming the settings, press the DATA button to save and exit parameter setting mode.

3. Setting and Removing Passwords

To protect the inverter’s parameter settings from unauthorized changes, you can set a password:

  1. Enter Password Setting: In parameter setting mode, select User Parameters in parameter group 00, then find parameter 00-08 (Parameter Protection Password Setting).
  2. Enter Password: Use the ▲ and ▼ buttons to input the desired password (00~65535).
  3. Confirm Password: Enter the same password again to confirm.

To remove an existing password, simply set the value of parameter 00-08 back to 00.

II. Terminal Start and External Potentiometer Speed Control Settings

To configure the inverter for terminal start and external potentiometer speed control, you need to set specific parameters and connect certain terminals:

1. Parameter Settings

  1. First Operation Command Source Setting: Set parameter 02-01 to 01, indicating that the operation command is controlled by external terminals.
  2. First Frequency Command Source Setting: Set parameter 02-00 to 01, indicating that the frequency command is controlled by the analog signal (0~10V) input from the external terminal AVI.
  3. Multi-function Input Command Setting: Depending on your needs, set parameters 04-04 to 04-09 to corresponding functions such as forward rotation, reverse rotation, start, stop, etc.

2. Terminal Connections

  1. Power Connection: Connect the inverter’s power terminals R, S, T to the three-phase AC power supply.
  2. Motor Connection: Connect the inverter’s output terminals U, V, W to the three-phase induction motor.
  3. Start and Stop Terminal Connection: Connect the external start button between the FWD terminal and the DCM terminal, and connect the stop button between the REV terminal and the DCM terminal (note that the connection method depends on the two/three-wire mode selection setting).
  4. External Potentiometer Connection: Connect the output of the external potentiometer between the AVI terminal and the GND terminal for speed control.
Delta VFD-B standard wiring diagram for frequency converters

III. Fault Codes, Their Meanings, and Solutions

The Delta Inverter VFD-B series will display corresponding fault codes when a fault occurs, allowing users to quickly locate the problem. Below are some common fault codes, their meanings, and solutions:

  1. OC (Overcurrent): Indicates that the output current of the inverter exceeds the rated value.
    • Solution: Check if the motor is overloaded, verify the motor wiring is correct, and adjust the acceleration and deceleration time parameters.
  2. OV (Overvoltage): Indicates that the DC bus voltage of the inverter is too high.
    • Solution: Check if the input power supply voltage is too high, ensure the braking resistor is connected correctly, and adjust the overvoltage protection parameters.
  3. OH (Overheat): Indicates that the internal temperature of the inverter is too high.
    • Solution: Check if the inverter installation environment is well-ventilated, ensure the cooling fan is working properly, reduce the load, or increase cooling measures.
  4. OL (Overload): Indicates that the motor is overloaded.
    • Solution: Check if the motor is operating under overload conditions, adjust the load, or increase the motor capacity.
  5. EF (External Fault): Indicates that an external fault signal has been input.
    • Solution: Check the source of the external fault signal and resolve the external fault.
  6. CF (Communication Fault): Indicates a communication anomaly.
    • Solution: Check if the communication lines are connected correctly and ensure the communication parameter settings are correct.

By following these steps, users can effectively use the Delta Inverter VFD-B series, including operating the panel, setting parameters, configuring functions, and troubleshooting faults. These operations will help users better control and maintain the inverter, ensuring its normal operation.

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User Manual Guide for Inovance Inverter MD380 Series

I. Introduction to the Operation Panel Functions and Parameter Settings

1.1 Operation Panel Functions

The operation panel of the Inovance MD380 series inverter is a crucial tool for users to set parameters, monitor status, and diagnose faults. The operation panel primarily consists of an LED display, function keys, and multiple input/output ports. The LED display shows current operating parameters such as frequency, voltage, and current. The function keys include PRG (Program), ENTER (Confirm), RUN (Run), STOP/RESET (Stop/Reset), and MF.K (Multi-Function Key), which users utilize for menu navigation and parameter modification.

1.2 Restoring Factory Defaults

Restoring factory defaults clears user-defined parameters, resetting the inverter to its default settings at the time of manufacture. The steps are as follows:

  1. Enter the Function Parameter Mode: Press the PRG key to enter the function parameter mode.
  2. Select the FP Group Function Code: Use the ▲ or ▼ keys to select the FP group function code (FP-01).
  3. Set to Restore Factory Defaults: Press the ENTER key to enter the FP-01 parameter setting, set the value of FP-01 to 1, and then press ENTER to confirm. The inverter will then automatically restart and restore to its factory default settings.

1.3 Setting and Clearing Passwords

Password protection prevents unauthorized users from modifying inverter parameters. The steps to set and clear passwords are as follows:

  1. Setting a Password: Set the value of the FP-00 function code to a non-zero number, such as 1234, and then press ENTER to confirm. Password protection is now enabled, and entering the function parameter mode will require a password.
  2. Clearing the Password: Set the value of the FP-00 function code to 0 and then press ENTER to confirm. This disables password protection, and entering the function parameter mode will no longer require a password.
Function Description Diagram of Huichuan MD380 Series Inverter Operation Panel

II. Terminal Start/Stop and External Potentiometer Speed Adjustment Settings

2.1 Wiring Instructions

To achieve terminal start/stop and external potentiometer speed adjustment, the control terminals of the inverter must be correctly connected. The specific wiring is as follows:

  • Start Terminal (DI1): Connect one end of the external start button to DI1 and the other end to the common terminal (COM).
  • Stop Terminal (DI2): Connect one end of the external stop button to DI2 and the other end to the common terminal (COM).
  • Speed Adjustment Terminal (AI1): Connect the center tap of the external potentiometer to AI1, and the two ends of the potentiometer to +10V and GND, respectively.

2.2 Parameter Settings

After completing the wiring, the inverter must be configured with specific parameters to achieve the desired functionality. The settings are as follows:

  1. Set the Command Source: Set the value of the F0-02 function code to 1 to select the terminal command channel.
  2. Set DI1 and DI2 Functions: Set the value of the F4-00 function code to 1 (forward operation) and the value of the F4-01 function code to 4 (reverse operation) or as required.
  3. Set AI1 Function: Configure the F4-13 to F4-16 function codes to set the input range and corresponding set values for AI1, ensuring that the output of the external potentiometer matches the frequency setting of the inverter.
  4. Other Related Settings: Set parameters such as acceleration and deceleration times and frequency limits as needed.
Basic wiring diagram of Huichuan MD380 series frequency converter

III. Fault Codes and Troubleshooting

3.1 Fault Codes and Their Meanings

The Inovance MD380 series inverter features comprehensive fault self-diagnosis functionality. When a fault occurs, the inverter displays the corresponding fault code. Common fault codes and their meanings are as follows:

  • Err01: Overcurrent fault, indicating that the inverter output current exceeds the set value.
  • Err02: Overvoltage fault, indicating that the inverter input voltage is too high.
  • Err03: Undervoltage fault, indicating that the inverter input voltage is too low.
  • Err07: Overload fault, indicating that the inverter output torque exceeds the set value.
  • Err11: Motor overload fault, indicating that the motor current is too high.
  • Err12: Input phase loss fault, indicating that the inverter input power supply is missing a phase.
  • Err15: External fault, indicating that the external fault input terminal is active.
  • Err16: Communication abnormality fault, indicating that communication between the inverter and the host computer is abnormal.

3.2 Troubleshooting

Different fault codes require specific troubleshooting steps:

  • Overcurrent Fault (Err01): Check if the motor and load are too large, and adjust the acceleration and deceleration times or reduce the output frequency.
  • Overvoltage Fault (Err02): Check if the input power supply voltage is too high or install a braking resistor to dissipate excess energy.
  • Undervoltage Fault (Err03): Check if the input power supply voltage is too low or if the power supply line connection is poor.
  • Overload Fault (Err07): Check if the load is too large and adjust the overload protection parameters.
  • Motor Overload Fault (Err11): Check if the motor is stalled or the load is too large, and adjust the motor overload protection parameters.
  • Input Phase Loss Fault (Err12): Check if the input power supply is missing a phase or if the power supply line connection is good.
  • External Fault (Err15): Check if the external fault input terminal is misconnected or damaged and eliminate the external fault source.
  • Communication Abnormality Fault (Err16): Check if the communication line is connected correctly or replace the communication cable.

By following the steps outlined above, users can gain a comprehensive understanding of the operation panel functions, parameter setting methods, terminal start/stop and external potentiometer speed adjustment settings, as well as fault code troubleshooting for the Inovance MD380 series inverter, thereby enabling better use and maintenance of the inverter equipment.

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User Manual Guide for Inovance CS700 Series Crane-specific Inverter

I. Operation Panel Function Description and Basic Operations

Operation Panel Functionality

The Inovance CS700 series crane-specific inverter is equipped with an intuitive and user-friendly operation panel, which primarily includes the following buttons and indicators:

  • Buttons: Including PRG (programming key), ENTER (confirmation key), increment key (▲), decrement key (▼), shift key (◀/▶), RUN (run key), STOP/RES (stop/reset key), MF.K (multi-function key), QUICK (menu key), etc.
  • Indicators: Including RUN (run indicator), LOCAL/REMOT (command source indicator), FWD/REV (forward/reverse indicator), TUNE/TC (tuning/torque control/fault indicator), etc.

Basic Operations

Function diagram of Huichuan CS700 crane dedicated VFD operation panel
  1. Start and Stop:
    • Press the RUN button to start the inverter, and the inverter run indicator (RUN) will light up.
    • Press the STOP/RES button to stop the inverter, and the inverter run indicator will go out.
  2. Speed Regulation:
    • Enter the programming mode by pressing the PRG button, adjust the target frequency using the increment key (▲) and decrement key (▼), and then press the ENTER button to confirm.

Password Setting and Removal

  • Password Setting: Set the password for all function parameters through parameter AF.00, the password for the second-level menu through parameter bF.00, and the password for the third-level menu through parameter FF.00.
  • Password Removal: Set the password parameter to 0 to remove the password protection.

Parameter Initialization

  • Press the PRG button to enter the programming mode, select parameter AF.01 (restore factory parameters for the first-level menu), bF.01 (restore factory parameters for the second-level menu), or FF.10 (restore factory parameters for the third-level menu), and press the ENTER button to confirm.
Typical wiring diagram of Huichuan CS700 crane specific VFD

II. Crane Mode and PG Encoder Feedback Settings

Crane Mode Selection

The CS700 series inverter supports multiple crane modes, generally achieved through the multi-speed function. The specific setting steps are as follows:

  1. Enter the programming mode, select parameter A0.07, and set it to 0 to choose multi-speed as the frequency source.
  2. Set parameters b3.01~b3.05 to define DI1~DI5 as multi-speed selections 1~5, respectively.
  3. Set the corresponding frequency for each speed in parameters b5.00~b5.07.

PG Encoder Feedback Settings

If PG encoder feedback is selected, the following settings and wiring are required:

  1. Parameter Settings:
    • Enter the programming mode, select parameter b1.00, and set it to 1 to choose encoder vector control (closed-loop control mode).
    • Set parameters b2.00 (encoder lines) and b2.01 (encoder type) according to the actual encoder type used.
  2. Wiring:
    • Connect the encoder signal wires to the PG card interface of the inverter, with specific wiring reference to the wiring diagram in the manual.

III. Fault Code Meanings and Solutions

The CS700 series inverter provides a wealth of fault codes to help users quickly locate and resolve issues. Below are some common fault codes, their meanings, and solutions:

  1. Er02: Acceleration Overcurrent
    • Meaning: Grounding or short circuit in the inverter output circuit, or too short acceleration time, etc.
    • Solution: Check the peripheral circuit and eliminate grounding or short circuit faults; increase the acceleration time.
  2. Er03: Deceleration Overcurrent
    • Meaning: Grounding or short circuit in the inverter output circuit, or too short deceleration time, etc.
    • Solution: Check the peripheral circuit and eliminate grounding or short circuit faults; increase the deceleration time.
  3. Er04: Constant Speed Overcurrent
    • Meaning: Grounding or short circuit in the inverter output circuit, or low voltage, etc.
    • Solution: Check the peripheral circuit and eliminate grounding or short circuit faults; adjust the voltage to the normal range.
  4. Er05: Acceleration Overvoltage
    • Meaning: High input voltage, or external force dragging the motor during acceleration, etc.
    • Solution: Adjust the voltage to the normal range; eliminate external force dragging or install braking resistors.
  5. Er08: Control Power Supply Fault
    • Meaning: Input voltage is not within the specified range.
    • Solution: Adjust the voltage to meet the specified requirements.
  6. Er10: Inverter Overload
    • Meaning: Excessive load or motor stall, or undersized inverter selection, etc.
    • Solution: Reduce the load and check the motor and machinery; select an inverter with a larger power rating.
  7. Er11: Motor Overload
    • Meaning: Improper setting of motor protection parameters, or excessive load, etc.
    • Solution: Set the motor protection parameters correctly; reduce the load.
  8. Er12: Input Phase Loss
    • Meaning: Abnormal three-phase input power.
    • Solution: Check and eliminate issues in the peripheral circuitry.
  9. Er14: Module Overheat
    • Meaning: High ambient temperature or blocked air duct, etc.
    • Solution: Lower the ambient temperature and clean the air duct.
  10. Er37: Frequency Direction Anomaly
    • Meaning: The direction of the given running frequency is opposite to that of the motor feedback frequency.
    • Solution: Check the motor parameter settings and adjust parameter bC.02 if necessary.
  11. Er41: Loose Brake Fault
    • Meaning: Error in the input of the loose brake feedback signal.
    • Solution: Check the brake circuit wiring and the function selection of the control panel’s loose brake feedback input point.
  12. Er42: Holding Brake Fault
    • Meaning: Error in the input of the holding brake feedback signal.
    • Solution: Check the brake circuit wiring and the function selection of the control panel’s holding brake feedback input point.

IV. Conclusion

The Inovance CS700 series crane-specific inverter is a powerful and easy-to-operate inverter dedicated to crane equipment. Through this guide, users can quickly master the basic functions of the operation panel, the setting method for crane modes, the configuration steps for PG encoder feedback, and solutions to common fault codes. It is hoped that this user guide will help users better use and maintain the CS700 series inverters, improving the work efficiency and safety of crane equipment.

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HARS Inverter HS720 Series Operation Method and PID Control Implementation for a Single Pump

I. Operation Method of the HARS Inverter HS720 Series

The HARS Inverter HS720 Series is a high-performance current vector inverter with a wide range of applications. This article will provide a detailed introduction on how to set the inverter to start via the operation panel and use the panel potentiometer to set the frequency, enabling direct start/stop control via the operation panel and speed regulation through the panel potentiometer.

Function diagram of HARS INVERTER HS720 series operation panel

1.1 Setting Operation Panel Startup and Panel Potentiometer Frequency Setting

First, ensure that the inverter’s power supply is correctly connected, and all safety measures are in place. Next, follow these steps to configure the settings:

  1. Enter Programming Mode: Press the PRG key on the inverter’s operation panel to enter the programming menu.
  2. Set Run Command Selection: In the programming menu, find the F0.02 parameter and set it to 0. This selects the keyboard operation mode for run commands.
  3. Set Main Frequency Source A Selection: Continue to find the F0.03 parameter and set it to 1. This indicates that the keyboard potentiometer is selected as the frequency setting method.
  4. Save and Exit: After completing the settings, press the SET key to save the parameters and press the PRG key to exit programming mode.

Now, you can start and stop the inverter using the RUN and STOP/RESET keys on the operation panel, and adjust the output frequency by rotating the panel potentiometer to achieve speed regulation.

II. Restoring Factory Default Settings for the Inverter

During the use of the inverter, it may be necessary to restore the parameters to their factory default values for reconfiguration or troubleshooting. The HARS Inverter HS720 Series provides a function to restore factory default settings, with the following steps:

  1. Enter Programming Mode: Press the PRG key to enter the programming menu.
  2. Select Data Initialization: Find the F0.17 parameter and set it to 2. This selects restoring factory default settings (excluding motor parameters and F8 group parameters).
  3. Confirm and Wait: Press the SET key to confirm the selection, and the inverter will begin the process of restoring factory default settings. Please wait patiently until initialization is complete.
  4. Exit Programming Mode: After initialization is complete, the inverter will automatically exit programming mode and restore to factory default settings.
HARS INVERTER HS720 Series Basic Wiring Diagram

III. PID Control Implementation for a Single Pump

In a constant pressure water supply system, the PID function within the inverter can be used to achieve constant pressure control of the water pump motor. The PID (Proportional-Integral-Derivative) controller is a commonly used feedback control system that continuously adjusts the output signal to make the system output reach and maintain the set value.

3.1 Introduction to PID Principles

The PID controller adjusts the output signal by calculating the deviation between the set value and the actual feedback value, based on three components: proportional (P), integral (I), and derivative (D). Among them:

  • Proportional (P): Adjusts the output based on the proportion of the deviation. The larger the deviation, the greater the output adjustment.
  • Integral (I): Integrates the deviation to eliminate the system’s static error.
  • Derivative (D): Adjusts the output based on the rate of change of the deviation to predict future deviations and make adjustments in advance.

In a constant pressure water supply system, the derivative component is usually not required, so the derivative gain can be set to 0.

3.2 Wiring and Parameter Settings

To achieve constant pressure water supply control using the panel potentiometer as the PID setpoint and port AI1 as the PID feedback value, follow these wiring and parameter setting steps:

Wiring Steps:

  1. Setpoint Wiring: Connect the output terminal of the panel potentiometer to the AI1 terminal of the inverter (as the PID setpoint input).
  2. Feedback Wiring: Connect the output signal of the pressure sensor (typically 420mA or 010V) to the AI2 terminal of the inverter (as the PID feedback input).
  3. Ensure Grounding: Ensure that all signal wires are properly grounded to avoid interference.

Parameter Setting Steps:

  1. Enter Programming Mode: Press the PRG key to enter the programming menu.
  2. Enable PID Function: Find the FA.00 parameter and set it to 1 to enable reverse-acting PID control.
  3. Set PID Setpoint Selection: Set the FA.01 parameter to 1, indicating that the keyboard potentiometer is selected as the PID setpoint.
  4. Set PID Feedback Selection: Set the FA.02 parameter to 2, indicating that AI1 is selected as the PID feedback input (Note: This differs slightly from the wiring as AI1 is already used as the setpoint input. In actual operation, ensure that the feedback value is input to the correct terminal, such as AI2).
  5. Adjust PID Parameters: Adjust PID parameters such as FA.09 (proportional gain), FA.10 (integral time), and FA.11 (derivative time) according to system requirements. In a constant pressure water supply system, the derivative time is typically set to 0.
  6. Save and Exit: After completing the settings, press the SET key to save the parameters and press the PRG key to exit programming mode.

Now, the inverter will automatically adjust the speed of the water pump motor based on the set PID parameters and the feedback signal from the pressure sensor to achieve constant pressure water supply control.

IV. Conclusion

The HARS Inverter HS720 Series is a powerful and easy-to-operate high-performance inverter. Through this article, you have learned how to set it to start via the operation panel and use the panel potentiometer to set the frequency, how to restore factory default settings, and how to use the PID function to achieve constant pressure water supply control for a single pump. In actual applications, you can further adjust and optimize the inverter’s parameter settings according to specific needs to achieve the best control effect.

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User Manual Guide for Yaskawa Inverter A1000 Series

The Yaskawa Inverter A1000 Series is a high-performance vector control inverter widely used in various industrial control applications. This document aims to provide users with a detailed guide, covering the function explanation of the operation panel, password setting and cancellation, parameter initialization settings, external terminal start/stop and potentiometer speed adjustment settings, as well as common fault codes and troubleshooting methods.

Function Description Diagram of Yaskawa A1000 Series Inverter Operation Panel

I. Function Explanation of the Operation Panel (Operator)

The operation panel of the Yaskawa Inverter A1000 Series integrates multiple functions, facilitating user parameter settings and status monitoring. Below are the main functions of the operation panel:

  1. Display and Operation: The operation panel features an LED display and multiple operation keys, including the “LOCAL/REMOTE” key and the “STOP” key, allowing users to perform local or remote operations and stop the inverter.
  2. Password Setting and Cancellation:
    • Password Setting: Enter the parameter setting mode and set the password by configuring A1-04 (Password) and A1-05 (Password Setting). The specific steps are: First, press the “ESC” key to enter the parameter setting mode, then select A1-05 and input the password value, and finally press the “ENTER” key to confirm.
    • Password Cancellation: To cancel the set password, set A1-04 (Password) to the same value as A1-05 (Password Setting), then re-enter the parameter setting mode and set both A1-04 and A1-05 to 0.
  3. Parameter Initialization Settings: Set A1-03 (Initialization) to choose different initialization methods. Common options include:
    • 1110: Initializes based on user settings, restoring parameters to user-saved values.
    • 2220: Initializes for 2-wire sequential control, restoring factory settings for 2-wire sequential control.
    • 3330: Initializes for 3-wire sequential control, restoring factory settings for 3-wire sequential control.
    • 5550: Resets oPE04, used for parameter reset after replacing the detachable terminal block.

II. External Terminal Start/Stop and Potentiometer Speed Adjustment Settings

To enable external terminal start/stop and potentiometer speed adjustment functions for the Yaskawa Inverter A1000 Series, the following parameter and wiring settings are required:

  1. Parameter Settings:
    • Set b1-01 (Run Command Selection 1) to 2, selecting external terminal run commands.
    • Set b1-02 (Run Command Selection 2) to 0, selecting the 2-wire sequential control mode for forward/stop and reverse/stop (or select other modes as needed).
    • Set H1-01 and H1-02 to 40 and 41, respectively, assigning the S1 and S2 terminals as input for forward and reverse run commands.
  2. Wiring Settings:
    • Connect the external start/stop buttons to the S1 and S2 terminals.
    • Connect the center tap of the potentiometer to the common terminal of the inverter (e.g., 0V), and connect the ends of the potentiometer to the analog input terminals of the inverter (e.g., A1 and +V or -V) to achieve potentiometer speed adjustment.
Yaskawa A1000 series inverter control circuit wiring diagram

III. Common Fault Codes and Troubleshooting Methods

The Yaskawa Inverter A1000 Series may encounter various faults during operation. Below are some common fault codes, their meanings, and troubleshooting methods:

  1. oL1 (Motor Overload):
    • Meaning: The motor current exceeds the rated value, triggering the overload protection.
    • Troubleshooting: Check if the motor load is too heavy, adjust the load or increase the motor capacity; check the motor wiring for correctness to avoid line-to-line shorts; check the inverter parameter settings to ensure the motor parameters match the actual motor.
  2. Uv1 (Main Circuit Undervoltage):
    • Meaning: The main circuit DC voltage is lower than the set value.
    • Troubleshooting: Check if the power supply voltage is stable and within the allowable range; check the power wiring for firmness to avoid poor contact; check if the internal capacitors of the inverter are aged or damaged.
  3. oH1 (Inverter Overheat):
    • Meaning: The internal temperature of the inverter is too high, triggering the overheat protection.
    • Troubleshooting: Check the installation environment of the inverter to ensure adequate ventilation; check if the inverter heat sink is clean and free of dust accumulation; check if the cooling fan is working properly and replace it if faulty.
  4. oPE03 (Improper Selection of Multi-function Input):
    • Meaning: There is a conflict or error in the function assignment of the multi-function input terminals.
    • Troubleshooting: Check the parameter settings of H1-01 to H1-08 to ensure the function assignment of each terminal is correct and without duplication; check if any unused terminals have been assigned functions mistakenly.
  5. Er-11 (Motor Speed Fault):
    • Meaning: During rotary self-learning, the motor speed is abnormal.
    • Troubleshooting: Check the connection between the motor and the inverter for correctness; check the wiring and settings of the PG (encoder); re-perform self-learning with the motor and mechanical system connected.

The above are only some common fault codes and their troubleshooting methods. In actual use, other faults may occur. Users should refer to the fault code table in the inverter user manual and take corresponding measures based on specific fault codes and meanings. Additionally, regular maintenance and inspection of the inverter are important means to prevent faults.

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User Manual for Yaskawa GA700 Series Inverte

I. Detailed Explanation of Operator Panel Functions

Mode and menu diagram of Yaskawa inverter GA700 operation panel

The operator panel of the Yaskawa GA700 Inverter serves as the primary interface for user interaction, providing a wealth of functions and setting options. Below are the main functions and operation instructions for the operator panel:

  1. Display and Setting Functions
    • Monitoring Display: The operator panel can display various status information of the inverter, such as frequency command, output frequency, current, voltage, etc. Users can select the desired monitoring item using the up, down, left, and right keys.
    • Parameter Settings: Through the operator panel, users can access and modify various inverter parameters to meet different application requirements. Press the “MENU” key to enter the menu, then use the up and down keys to select the desired parameter, and press the “ENTER” key to enter the parameter setting interface.
  2. Restoring Factory Default Parameters
    If it is necessary to restore the inverter parameters to their factory defaults, follow these steps:
    • Press the “MENU” key to enter the menu.
    • Use the up and down keys to select the “Tools” menu, then press the “ENTER” key to enter.
    • In the “Tools” menu, use the up and down keys to select the “Parameter Initialization” option, then press the “ENTER” key to enter.
    • Select “Factory Default Initialization” and press the “ENTER” key to confirm. The system will prompt for confirmation; press the “YES” key to initialize, and the inverter parameters will be restored to their factory defaults.
  3. Setting External Terminal Start
    External terminal start refers to controlling the start and stop of the inverter through external signals (such as buttons, switches, etc.). Follow these steps to set external terminal start:
    • Ensure that the external control circuit is correctly wired.
    • Enter the “Application” menu on the operator panel and select “Frequency Command Source 1” (b1-01).
    • Set b1-01 to “0”, indicating that the operator panel is used to input the run command. If external terminal start is desired, set it to “2” (indicating that the control circuit terminal is used to input the run command).
    • Set other related parameters as needed, such as the function selection for the external start terminal (H1-xx parameter).
Yaskawa inverter GA700 control circuit wiring

II. Settings for External Terminal Start and External Potentiometer Speed Control

  1. External Terminal Start Settings
    The settings for external terminal start include wiring and parameter settings:
    • Wiring Steps:
      • Connect one contact of the external start button or switch to the “RUN” terminal of the inverter (e.g., terminal S1).
      • Connect the other contact to the common terminal of the inverter (e.g., terminal CM).
    • Parameter Setting Steps:
      • Enter the “Application” menu on the operator panel and select “Frequency Command Source 1” (b1-01).
      • Set b1-01 to “2”, indicating that the control circuit terminal is used to input the run command.
      • Enter the “Multi-function Input Terminals” menu (H1-xx), select the corresponding terminal (e.g., H1-01), and set its function to “Run Command” (e.g., set value “1”).
  2. External Potentiometer Speed Control Settings
    External potentiometer speed control allows users to adjust the output frequency of the inverter by rotating the potentiometer, thereby controlling the motor speed.
    • Wiring Steps:
      • Connect the three terminals of the potentiometer to the “AI1” (Analog Input 1) terminal of the inverter, the common terminal (e.g., terminal CM), and ground (GND), respectively.
    • Parameter Setting Steps:
      • Enter the “Application” menu on the operator panel and select “Frequency Command Source 1” (b1-01).
      • Set b1-01 to “1”, indicating that analog input is used as the frequency command.
      • Enter the “Multi-function Analog Input” menu (H3-xx), select “Terminal A1 Function Selection” (H3-02), and set it to “Main Speed Frequency Command” (set value “0”).
      • Adjust “Terminal A1 Input Gain” (H3-03) and “Terminal A1 Input Offset” (H3-04) as needed to match the output range of the potentiometer and the frequency command range of the inverter.

III. Inverter Fault Codes and Handling Methods

When the Yaskawa GA700 Inverter encounters a fault, it will display the corresponding fault code. Below are some common fault codes, their meanings, and handling methods:

  1. oC (Overcurrent)
    • Meaning: The inverter output current exceeds the rated value.
    • Handling Method: Check if the motor load is too heavy, if there are short circuits or grounding faults, and adjust inverter parameters (such as acceleration/deceleration time, torque limit, etc.).
  2. oV (Overvoltage)
    • Meaning: The DC bus voltage of the inverter is too high.
    • Handling Method: Check if the input power supply is stable, if there are issues with the braking resistor (overheating or damage), and adjust inverter parameters (such as deceleration time, overvoltage suppression function, etc.).
  3. oH (Overheat)
    • Meaning: The internal temperature of the inverter is too high.
    • Handling Method: Check if the installation environment of the inverter is well-ventilated, if there is dust accumulation or blocked heat sinks, clean the heat sinks, and check if the cooling fan is working properly.
  4. FbL (PID Feedback Lost)
    • Meaning: The feedback signal is lost in PID control.
    • Handling Method: Check if the PID feedback loop is correctly wired, if the feedback sensor is working properly, and adjust PID control parameters.
  5. EF (External Fault)
    • Meaning: An external fault signal has been received.
    • Handling Method: Check if the external fault signal source is normal, resolve the external fault, and reset the inverter.

The above are only some common fault codes and their handling methods. In actual use, more fault codes may be encountered. Users should refer to the inverter’s technical manual to understand the meanings of various fault codes and the corresponding handling methods to ensure the normal operation of the inverter.

Through this introduction, users should now have a comprehensive understanding of the operator panel functions, settings for external terminal start and external potentiometer speed control, and fault code handling for the Yaskawa GA700 Inverter. In practical applications, users should set the inverter parameters reasonably based on specific application requirements and environmental conditions to ensure the safe and stable operation of the inverter.

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ABB AC Drive ACS880 Series Firmware Manual User Guide

Introduction

The ABB ACS880 series AC Drives represent a high-performance drive system widely utilized across various industrial applications. To ensure users can efficiently and safely operate this product, this document provides a comprehensive guide to the features and operations of the ACS880 series AC Drives, focusing on the operation panel (control pad), external control settings, and other key functionalities.

ACS-AP-x control panel function navigation diagram

Operation Panel (Control Pad) Functionality

Overview

The operation panel, also known as the control pad, serves as the primary interface for configuring and monitoring the ACS880 AC Drive. This section will detail the functions of the control pad, including how to reset the drive to factory settings, set a password, and remove a password.

Resetting to Factory Settings

To reset the ACS880 AC Drive to its factory settings using the control pad:

  1. Access the Main Menu: Navigate to the main menu on the control pad.
  2. Select Parameters: Locate and select the “Parameters” menu.
  3. Reset to Factory Defaults: Find the option to reset to factory defaults and confirm the action.

Note: Resetting to factory settings will erase all user-defined parameters and configurations. Ensure all necessary settings are backed up before proceeding.

Setting a Password

To protect your drive settings from unauthorized access, you can set a password on the control pad:

  1. Access the Parameters Menu: Navigate to the “Parameters” menu on the control pad.
  2. Locate the Password Setting: Find the parameter related to setting a password.
  3. Enter the Password: Follow the prompts to enter and confirm your desired password.
ACS880-01 default IO connection diagram

Removing a Password

If you need to remove a previously set password:

  1. Access the Parameters Menu: Navigate to the “Parameters” menu on the control pad.
  2. Locate the Password Removal Setting: Find the parameter related to removing the password.
  3. Enter the Current Password: You may be prompted to enter the current password to confirm the removal.
  4. Confirm Removal: Follow the prompts to confirm the password removal.

Setting Up External Control

Overview

External control allows you to start, stop, and adjust the speed of the ACS880 AC Drive via external signals rather than through the control pad. This section will guide you through the necessary wiring and steps to set up external control, including starting and stopping the drive and adjusting its speed via an external potentiometer.

Wiring for Start and Stop

To control the start and stop functions of the ACS880 AC Drive externally, you need to connect the appropriate terminals on the drive:

  1. Locate the Control Terminals: Identify the terminals labeled for start and stop control on the drive.
  2. Wire the Terminals: Connect your external control devices (e.g., pushbuttons, relays) to these terminals according to the required logic (e.g., normally open, normally closed).

Note: Ensure proper polarity and isolation to prevent short circuits and electrical hazards.

Adjusting Speed via External Potentiometer

To adjust the speed of the ACS880 AC Drive using an external potentiometer:

  1. Connect the Potentiometer: Use a suitable potentiometer and connect its terminals to the analog input terminals on the drive designated for speed control.
  2. Configure the Analog Input: Navigate to the “Parameters” menu on the control pad and configure the analog input to accept speed commands from the potentiometer.
  3. Calibrate the Potentiometer: Adjust the potentiometer’s range to match the desired speed range of the drive.

Note: Refer to the drive’s manual for specific parameter settings related to analog input and speed control.

Conclusion

This guide provides a comprehensive overview of the essential functionalities of the ABB ACS880 series AC Drives, focusing on the operation panel and external control settings. By following the steps outlined in this guide, users can efficiently configure and operate their drives, ensuring optimal performance and safety in various industrial applications. Always refer to the drive’s manual for detailed parameter settings and additional features.

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ABB AC Drive ACS880 Series “Check Connection” Fault Analysis and Solution

In the field of industrial automation, ABB’s ACS880 series AC drives are highly regarded for their efficiency, reliability, and ease of maintenance. However, as with any complex electrical equipment, issues can arise. One such issue, similar to the A5001 (Drive Not Responding) fault seen in the ACS510 and ACS550 series, is the “Check Connection” fault in the ACS880 series. This article aims to analyze the meaning and provide solutions for the “Check Connection” fault in the ABB ACS880 series AC drives.

Meaning of “Check Connection” Fault

The “Check Connection” fault in the ABB ACS880 series AC drives typically indicates a problem with the communication or connection between the main control board (or control card) and the operator interface or other connected devices. This fault can occur due to various reasons, such as loose cables, faulty connectors, or communication settings issues.

When this fault occurs, the AC drive may not respond to commands from the operator interface or may exhibit abnormal behavior. It is essential to diagnose and resolve this fault promptly to ensure the smooth operation of the drive and the overall industrial process.

ACS880 on-site wiring diagram

Fault Analysis

Possible Causes

  1. Loose or Faulty Cables: Over time, cables can become loose or damaged, disrupting the communication between the control board and other components.
  2. Faulty Connectors: Connectors that have seen extensive use or improper handling can wear out, causing intermittent or complete loss of communication.
  3. Communication Settings: Incorrect communication settings or protocol mismatches can prevent the control board from communicating properly with other devices.
  4. Control Board Issues: In rare cases, the control board itself may have hardware or software issues that affect its ability to communicate.
AC Drive ACS880

Diagnosis

  1. Check Cable Connections: Visually inspect all cables connecting the control board to the operator interface and other devices. Ensure that the cables are securely fastened and free from damage.
  2. Inspect Connectors: Carefully examine the connectors on both ends of the cables. Look for signs of wear, corrosion, or damage that could affect the connection.
  3. Verify Communication Settings: Compare the communication settings in the AC drive with those required by the connected devices. Ensure that the correct protocol, baud rate, and other parameters are configured.
  4. Check Control Board Status: Use the drive’s diagnostic tools to check the status of the control board. Look for any error codes or warnings that may indicate a hardware or software issue.
AC Drive control card

Solution Methods

Step-by-Step Solutions

  1. Tighten or Replace Cables: If any cables are found to be loose or damaged, tighten them securely or replace them with new cables. Ensure that all connections are properly seated and free from debris.
  2. Replace Faulty Connectors: If connectors are found to be faulty, replace them with new connectors. Ensure that the new connectors are compatible with the existing cables and devices.
  3. Adjust Communication Settings: If communication settings are found to be incorrect, adjust them to match the requirements of the connected devices. Refer to the user manual for guidance on setting up communication parameters.
  4. Contact Technical Support: If the fault persists after checking cables, connectors, and communication settings, it may be necessary to contact ABB’s technical support for further assistance. The support team can provide additional diagnostics and recommend repair or replacement options if necessary.
AC Drive check connection fault

Conclusion

The “Check Connection” fault in the ABB ACS880 series AC drives can be a frustrating issue, but it can be resolved through systematic diagnosis and targeted solutions. By carefully checking cable connections, inspecting connectors, verifying communication settings, and seeking assistance from technical support when needed, users can ensure that their AC drives remain operational and reliable. Proper maintenance and troubleshooting practices are key to maximizing the lifespan and performance of ABB ACS880 series AC drives in industrial applications.

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Usage Instructions and Troubleshooting of COF Fault in Powtran PI8600 Series Inverter

I. Usage Instructions for Powtran PI8600 Series Inverter

1. Panel Operation Setup

The panel operation of the Powtran PI8600 series inverters is straightforward. Here’s how to set up panel start, panel speed regulation, restore factory settings, set passwords, and remove passwords:

Panel Start and Speed Regulation:

  1. Entering Parameter Setting Mode:
    • Press the PRG button to enter the parameter group query state.
    • Use the potentiometer to switch to the F00-63 basic function group.
    • Press the PRG button again to enter the parameter query state within the F00-63 group.
    • Switch to F02 (Frequency Main Setting Mode) using the potentiometer.
    • Press the PRG button to enter the parameter modification state for F02.
    • Set F02 to 4 (Keyboard Potentiometer Given) using the potentiometer and SET button.
  2. Adjusting Speed:
    • Rotate the potentiometer on the panel to adjust the set frequency in real-time, which will also adjust the motor speed.

Restoring Factory Settings:

  1. In the monitoring state, press the PRG button to enter the parameter group query state.
  2. Use the potentiometer to switch to the y00-23 system function group.
  3. Press the PRG button to enter the parameter query state within this group.
  4. Switch to y00 (Reset System Parameters) using the potentiometer.
  5. Press the PRG button to enter the parameter modification state.
  6. Set the parameter to 5 to reset the system parameters to factory defaults using the potentiometer and SET button.
POWTRAN Inverter PI8600

Setting and Removing Passwords:

  1. Setting a Password:
    • Enter the system function group (y00-23) as described above.
    • Switch to y15 (User Decode Input) to set the password.
    • Enter the desired password using the potentiometer and SET button.
  2. Removing a Password:
    • Again, enter the system function group.
    • Switch to y16 (User Password Input).
    • Enter the current password followed by the new password (all zeros to remove the password) using the potentiometer and SET button.
2. Fault Code Enumeration and Analysis
FUALT COF

Fault Code COF – Communication Failure:

Symptoms:

  • The inverter fails to communicate properly with external devices or the control panel.

Possible Causes:

  1. Poor connection at the keyboard interface or control board.
  2. Faulty keyboard cable or crystal connector.
  3. Damaged control board or keyboard hardware.
  4. Excessive length of the keyboard cable causing interference.

Solutions:

  1. Check and tighten all connections at the keyboard interface and control board.
  2. Replace the keyboard cable or crystal connector if damaged.
  3. Inspect the control board and keyboard for any signs of damage. Replace if necessary.
  4. If using a long keyboard cable, consider using a shielded cable or reducing the cable length to minimize interference.

Other Common Fault Codes:

  • OC: Overcurrent. Check the motor and cable connections, and ensure the motor is not overloaded.
  • OU: Overvoltage. Verify the input voltage and consider installing a voltage stabilizer.
  • LU: Undervoltage. Check the power supply and ensure it meets the inverter’s voltage requirements.
  • OL: Overload. Reduce the load on the motor or adjust the overload protection parameters.

By following the above instructions, users can effectively operate the Powtran PI8600 series inverters, troubleshoot common issues, and maintain optimal performance.