Industrial control technology – Page 3

Posted on 2025年2月28日2025年2月28日 by baiyuzhan — Leave a comment

User Guide for Parker Servo System TWIN5NS(TWIN-N/SPD-N) Series

The Parker servo system TWIN-N/SPD-N series is a high-performance servo drive system widely used in industrial automation, robotics, and precision control applications. This guide provides detailed instructions on how to perform jog testing, position mode control, electronic cam functionality, and troubleshooting for this system.

1. Jog Testing

Jog testing is a crucial step in the calibration and verification of servo systems. Here’s a detailed guide on how to perform jog testing:

Wiring Steps:

Power Connection: Connect the three-phase power supply lines L1, L2, and L3 to the drive’s terminals 1, 2, and 3, respectively. For single-phase or DC power supply, refer to the user manual for the appropriate wiring diagram.
Motor Connection: Connect the motor’s U, V, and W phases to the drive’s terminals 5, 6, and 7 (Motor I). For dual-axis drives (TWIN-N), connect the second motor’s U, V, and W phases to terminals 9, 10, and 11 (Motor II).
Encoder Connection (if used): For incremental encoders, connect the A+, A-, B+, and B- signal lines to terminals 13, 14, 15, and 16, respectively. For sine/cosine encoders, connect the Sin+, Sin-, Cos+, and Cos- signal lines to terminals 6, 7, 8, and 9, respectively.
Control Signal Connection: Connect the 24V control power supply to terminals 24 and 48. Connect the analog reference input to terminals 1 and 2 (Rif. AUX + and Rif. AUX -). Connect the JOG operation buttons to digital input terminals (e.g., IN0, IN1) for start, stop, and direction control.

Parameter Settings:

Initialize Parameters: After powering on, set the drive to default parameters using the keypad. Set b99.7 and b99.13 to 0, issue command b99.12, and save the settings (b99.14 and b99.15).
Set Motor Parameters: Input motor parameters such as pole count (Pr29), rated speed (Pr32), rated current (Pr33), encoder pole count (Pr34), motor impedance (Pr46), and inductance (Pr47).
Set Feedback Type: Configure feedback parameters based on the encoder type (e.g., b42.9, b42.8, b42.7, b42.6).
Adjust Speed Loop Parameters: Set the integral gain (Pr16) and damping (Pr17) of the speed loop, adjusting based on system response.
Set Acceleration/Deceleration Time: Configure acceleration and deceleration times (Pr8, Pr9, Pr10, Pr11).
Set Limiting Parameters: Set overspeed limit (Pr13), high-speed limit (Pr14), low-speed limit (Pr15), and peak current (Pr19).

Jog Operation Procedure:

After powering on, start the JOG operation by pressing the corresponding buttons. One button can start the motor in the forward direction, and another can start it in reverse.
Releasing the button should stop the motor immediately or according to the set deceleration.

Open-Loop Mode Testing:

In open-loop mode (without an encoder), the drive operates the motor using V/F control by varying the frequency of the input voltage. Set the motor type to asynchronous (Pr217 = 1) and input related parameters such as base speed (Pr218), slip (Pr219), and magnetizing current (Pr220). In this mode, the drive estimates the motor’s speed and position by detecting the back EMF.

2. Position Mode Forward and Reverse Control

Position mode control is commonly used in servo systems to precisely control the motor’s position. Here’s how to implement forward and reverse control in position mode:

Wiring Steps:

In addition to the power and motor connections, connect a position feedback device (e.g., an encoder) to the drive’s corresponding terminals.

Parameter Settings:

Set Position Mode: Select the position mode in the operation settings (e.g., Pr31 = 13 or 14).
Set Position Parameters: Configure target position (e.g., Pr62:63), speed (Pr8, Pr9), and acceleration (Pr10, Pr11).
Enable Position Control: Ensure the position feedback device is correctly connected and calibrated.

Forward and Reverse Control:

Control the motor’s forward and reverse rotation by setting the target position to positive or negative values. For example, a positive target position will rotate the motor forward, while a negative value will rotate it in reverse.

3. Electronic Cam Functionality

The electronic cam function is an advanced feature of servo systems used for complex motion control. Here’s how to implement it:

Implementation Steps:

Set Electronic Cam Parameters: Select the electronic cam mode in the operation settings (e.g., Pr31 = 14). Configure the cam table parameters, such as position, speed, and acceleration.
Configure Cam Table: Set up the data points in the cam table according to the motion requirements.

Using CAN Protocol:

CAN Wiring: Connect the CAN communication lines to the drive’s CAN interface terminals.
Set CAN Parameters: Configure the CAN communication speed (e.g., Pr48) and CANopen address (e.g., Pr49).
Configure CAN Communication: Set up the data frames and control words for CAN communication according to the user manual.

4. Troubleshooting Fault Codes

Servo systems may encounter various faults during operation. Understanding fault codes and how to handle them is crucial for maintaining system stability. Here are common fault codes and their handling methods:

Overcurrent Fault (Pr23 = 1): Check the motor and cable connections, and ensure the load is within rated limits.
Overvoltage Fault (Pr23 = 2): Verify the power supply voltage and ensure it is stable.
Overheating Fault (Pr23 = 3): Check the drive and motor cooling, and ensure proper ventilation.
Encoder Fault (Pr23 = 4): Inspect the encoder connections and signals, and ensure the encoder is functioning correctly.

Handling Procedure:

Identify the fault code and refer to the user manual for the fault description.
Inspect the relevant components and connections based on the fault description.
After resolving the fault, restart the system and monitor its operation.

Conclusion

The Parker servo system TWIN-N/SPD-N series is a powerful and versatile servo drive system. By following the correct wiring and parameter settings, users can perform jog testing, position mode control, and electronic cam functionality. Understanding fault codes and their handling methods ensures the system’s stable operation. This guide provides comprehensive instructions to help users effectively utilize this servo system, enhancing work efficiency and control precision.

Posted on 2025年2月27日2025年2月27日 by baiyuzhan — Leave a comment

Implementing 485 Communication between Schneider ATV12 Series Inverter and PLC

In modern industrial automation systems, the inverter plays a crucial role in controlling motor operations. Communication between the inverter and the Programmable Logic Controller (PLC) is essential for precise control and monitoring. The Schneider ATV12 series inverter utilizes the RS-485 communication protocol to exchange data with the PLC, enabling accurate motor control. This article provides a detailed guide on implementing 485 communication between the Schneider ATV12 series inverter and PLC, including specific wiring, communication features, and implementation methods.

I. Overview of Schneider ATV12 Series Inverter

The Schneider ATV12 series inverter is a high-performance variable frequency drive widely used in various industrial settings. It offers a broad power range, high control precision, and significant energy savings. By communicating with the PLC, the inverter can achieve more flexible and efficient control, meeting the demands of complex industrial environments.

II. Features of RS-485 Communication Protocol

RS-485 is a half-duplex communication protocol commonly used in industrial automation. Its key features include:

Long-Distance Transmission: RS-485 supports long-distance data transmission, up to 1200 meters, making it suitable for large industrial sites.
Multi-Drop Communication: It supports multiple devices on the same bus, ideal for complex industrial control networks.
Strong Anti-Interference Capability: Using differential signaling, RS-485 offers strong anti-interference capabilities, suitable for environments with significant electromagnetic interference.

III. Specific Wiring between Schneider ATV12 Inverter and PLC

To implement 485 communication between the Schneider ATV12 inverter and PLC, follow these steps:

Preparation:

Ensure that the power to both the inverter and PLC is turned off for safety.
Prepare the RS-485 communication cable, typically a shielded twisted pair.

Inverter-Side Wiring:

Locate the communication port on the Schneider ATV12 inverter labeled “RDA+” and “RDA-”.
Connect the two signal wires of the RS-485 cable to the “RDA+” and “RDA-” terminals.
Ground the cable shield to enhance anti-interference capability.

PLC-Side Wiring:

On the PLC’s 485 communication module, find the corresponding “A” and “B” terminals.
Connect the RS-485 cable from the inverter to the “A” and “B” terminals on the PLC.
Ground the cable shield.

Termination Resistor Matching:

Add a 120-ohm termination resistor at each end of the bus to eliminate signal reflections and ensure communication quality.

IV. Communication Features of Schneider ATV12 Inverter

The Schneider ATV12 series inverter has the following communication features:

Multi-Protocol Support: Supports multiple communication protocols such as Modbus RTU, accommodating various industrial control requirements.
High Reliability: Built-in EMC filters reduce electromagnetic interference, enhancing communication reliability.
Flexible Configuration: Communication parameters such as baud rate and address can be flexibly configured to meet different communication needs.

V. Implementation Method

Parameter Configuration:

Enter the inverter’s configuration mode and set communication parameters, including baud rate, data bits, parity, and stop bits.
Ensure that the communication parameters match those of the PLC to enable correct data transmission.

Communication Testing:

After powering on, use the PLC’s communication software or programming tools to test the connection with the inverter.
Verify that data transmission is correct and that the inverter responds accurately to the PLC’s control commands.

Function Verification:

In actual operation, verify the communication functionality between the inverter and PLC to ensure the motor operates as expected.
Adjust communication parameters and control strategies as needed to optimize system performance.

VI. Conclusion

The Schneider ATV12 series inverter achieves efficient and reliable data exchange with the PLC through the RS-485 communication protocol, providing strong support for industrial automation control systems. Proper wiring and parameter configuration enable stable communication between the inverter and PLC, enhancing control precision and reliability. In practical applications, attention to communication line layout and shielding is crucial to ensure communication quality and minimize interference. Through thoughtful design and testing, the Schneider ATV12 inverter can leverage its high-efficiency control advantages in complex industrial environments.

Posted on 2025年2月27日2025年2月27日 by baiyuzhan — Leave a comment

Causes and Solutions for the E0006 Fault in HPMONT HD09 Series Inverters

1. Fault Overview

The E0006 fault in the HPMONT HD09 series inverter corresponds to a “DC bus constant-speed overvoltage fault.” This means that the DC bus voltage in the inverter exceeds the safety limit during constant-speed operation. Such faults can cause equipment shutdowns, affecting production and normal operation.

2. Fault Mechanism Analysis

Causes of DC Bus Overvoltage: The DC bus voltage in the inverter is converted from AC through a rectifier. If the input voltage is too high or too low, it can cause instability in the bus voltage. During load operation, especially during rapid stops, large load inertia, or abnormal braking systems, the DC bus voltage may rise sharply, triggering overvoltage protection.
Constant-Speed Overvoltage Scenario: The inverter operates at a constant speed, maintaining a stable motor frequency. If the input power supply voltage is too high, or if the acceleration/deceleration times are improperly set, overvoltage can occur. Furthermore, if the braking system is improperly configured or not correctly installed, excessive voltage can be generated during deceleration.
Potential Circuit Reasons:
- High input voltage: Especially in areas where the grid voltage fluctuates significantly, the inverter may detect overvoltage.
- Abnormal braking system: If the braking unit or brake resistor is incorrectly configured, or if it is not equipped in systems with heavy loads, excessive voltage can be generated during deceleration.
- System overload: If the load is too heavy or has significant inertia, the inverter may not be able to decelerate effectively, leading to overvoltage faults.

3. On-Site Fault Handling Methods

Check Input Voltage:
- Use a multimeter to check whether the input voltage to the inverter is within the normal range. If the input voltage exceeds the specified range (e.g., too high), consider using a voltage regulator or check the stability of the power grid.
Check Acceleration/Deceleration Time Settings:
- Refer to the inverter’s user manual and check the acceleration and deceleration times (parameters such as F03.01, F03.02, etc.). Too short a deceleration time can cause a sharp fluctuation in the bus voltage. It is recommended to extend the deceleration time to avoid overvoltage.
Check Braking System:
- For loads requiring deceleration, inspect the braking unit and brake resistor configuration to ensure they are appropriately sized for the load. If necessary, add a braking unit or adjust the brake resistor’s power and resistance.
Inspect and Check the Circuit:
- Inspect the internal circuitry of the inverter for loose connections, poor contact, or damage, especially in the power and braking resistor wiring terminals.

4. Specific Circuit Repair Methods

Input Voltage Issues:
- If the input voltage is too high, consider adding measures to stabilize the grid power, such as using overvoltage protection devices. For areas with significant voltage fluctuations, it is recommended to use appropriate power protection equipment, such as overvoltage protectors.
Braking System Faults:
- If the braking system is causing overvoltage, first verify whether the braking resistor is correctly specified. If the braking resistor is inadequate or damaged, select a properly rated resistor according to the load requirements. Check that the braking unit is properly connected, and ensure the braking circuit is securely wired.
Capacitor Issues:
- If the capacitor is aging or damaged, it could cause the DC bus voltage to be unstable. In this case, replace the damaged capacitors and verify whether the capacitor’s capacity matches the requirements.
Reconfigure Deceleration Time:
- For loads with high inertia or large power, it is necessary to increase the deceleration time. This can be achieved by adjusting parameters such as F03.02 to prevent overvoltage faults. Ensure that the deceleration process is smooth and does not lead to a sharp voltage change.

5. Conclusion

The E0006 fault is typically caused by high input voltage, braking system issues, or improper acceleration/deceleration time settings. When addressing this fault, it is essential to check key parameters such as input voltage, acceleration/deceleration times, and the braking system. Specific circuit repair actions, such as replacing capacitors, adjusting the braking system configuration, and extending deceleration times, can restore normal operation of the inverter.

Posted on 2025年2月25日2025年2月26日 by baiyuzhan — Leave a comment

User Manual Guide for Bosch Rexroth VFC3610/VFC5610 Series Frequency Converters

The Bosch Rexroth VFC3610/VFC5610 series frequency converters are high-performance devices widely used in industrial automation, mechanical processing, pump and fan control, and other fields. This article provides a detailed guide on using the user manual for these frequency converters, including operating panel functions, parameter settings, and troubleshooting.

I. Operating Panel Function Introduction

1.1 Operating Panel Functions

The operating panel of the Bosch Rexroth VFC3610/VFC5610 series offers a range of functions for parameter settings, monitoring, and diagnostics. The main components include an LED display, navigation knob, function button, stop button, and run button.

LED Display: Shows the operating status, parameter values, and fault codes.
Navigation Knob: Used to select parameter groups/parameters and set parameter values.
Function Button (Func): Enters the parameter group screen and returns to the previous screen.
Stop Button (Stop): Stops the frequency converter.
Run Button (Run): Starts the frequency converter.

1.2 Parameter Copying

Users can copy parameter settings from one frequency converter to another using the parameter copy function:

Back up parameters to the operating panel: Set parameter [b0.11] = ‘1: Backup parameters to the operating panel’.
Install the operating panel on the target frequency converter.
Set parameter [b0.11] = ‘2: Copy parameters from the operating panel’ to complete the parameter copying process.

1.3 Password Setting and Removal

To protect parameter settings, users can set a password. The steps for setting and removing the password are as follows:

Set Password: Set parameter [b0.20] to the desired user password (range: 0…65,535).
Remove Password: Set parameter [b0.20] to 0.

1.4 Parameter Access Restriction

To prevent unauthorized access to parameter settings, the frequency converter offers access restriction features. Users can set parameter [b0.00] to limit access rights:

0: Basic parameters
1: Standard parameters
2: Advanced parameters
3: Startup parameters
4: Modified parameters

1.5 Parameter Initialization

In some cases, users may need to initialize the frequency converter parameters to their default settings. The steps are as follows:

Set parameter [b0.10] = ‘1: Restore default settings’.
The frequency converter will automatically revert to the factory default settings.

II. External Terminal Control and Speed Adjustment

2.1 External Terminal Forward and Reverse Control

Users can control the forward and reverse operations of the frequency converter through external terminals. The steps are as follows:

Set parameter [E0.17] = ‘0: Forward / Reverse’.
Connect the terminals:

X1: Multifunctional digital input for forward control.
X2: Multifunctional digital input for reverse control.

2.2 External Potentiometer Speed Adjustment

Users can adjust the speed of the frequency converter using an external potentiometer. The steps are as follows:

Set parameter [E0.00] = ‘2: Al1 Analog Input’.
Connect the terminals:

Al1: Analog voltage input for frequency setting.
GND: Common ground for analog input.

III. Fault Codes and Handling

3.1 Fault Codes

The Bosch Rexroth VFC3610/VFC5610 series provides detailed fault codes to help users quickly identify and resolve issues. Some common fault codes and their meanings are as follows:

0: No fault
1: OC-1, Overcurrent during constant speed
2: OC-2, Overcurrent during acceleration
3: OC-3, Overcurrent during deceleration
4: OE-1, Overvoltage during constant speed
5: OE-2, Overvoltage during acceleration
6: OE-3, Overvoltage during deceleration
7: OE-4, Overvoltage during stop
8: UE-1, Undervoltage during operation
9: SC, Current surge or short circuit
10: IPH.L, Input phase loss
11: OPH.L, Output phase loss
12: ESS-, Soft start fault
20: OL-1, Overload
21: OH, Overheating
23: FF, Fan failure
24: Pdr, No-load protection
25: Col:, Command value loss

3.2 Fault Handling

When a fault occurs, users should take appropriate actions based on the fault code’s meaning. For example:

Overcurrent Faults (1, 2, 3): Check if the motor and load are functioning correctly. Ensure proper cable connections and adjust parameter settings if necessary.
Overvoltage Faults (4, 5, 6, 7): Check if the power supply voltage is stable. Ensure proper cable connections and adjust parameter settings if necessary.
Undervoltage Fault (8): Check if the power supply voltage is normal. Ensure proper cable connections.
Short Circuit Fault (9): Check cable and terminal connections for short circuits.
Phase Loss Faults (10, 11): Check cable and terminal connections for phase loss.
Overload Fault (20): Check if the motor and load are functioning correctly. Ensure proper cable connections and adjust parameter settings if necessary.
Overheating Fault (21): Check the cooling conditions of the frequency converter. Ensure the fan is working properly and clean the heat sink if necessary.
Fan Failure (23): Check if the fan is working properly. Replace the fan if necessary.
No-load Protection (24): Check if the motor is running correctly and ensure the load is normal.
Command Value Loss (25): Check communication cables and terminals for proper connections. Ensure communication is functioning correctly.

Conclusion

The Bosch Rexroth VFC3610/VFC5610 series frequency converters are powerful and user-friendly devices suitable for various industrial control applications. This guide provides a comprehensive overview of the operating panel functions, parameter settings, and fault handling for these frequency converters. By following this guide, users can effectively operate and maintain these devices, enhancing productivity and reliability.

Posted on 2025年2月25日2025年2月26日 by baiyuzhan — Leave a comment

Analysis and Handling of ER.258 Fault in Inovance IS620P Servo System

In industrial automation, servo systems play a crucial role in precise control and efficient driving tasks. However, in practical applications, servo systems may encounter various faults that affect the stability and efficiency of production lines. One of the common error codes in the Inovance IS620P servo system is ER.258, which can disrupt the normal operation of the system. This article will provide an in-depth analysis of the ER.258 fault, explore its causes, and suggest reasonable handling methods.

1. Analysis of ER.258 Fault

1.1 Basic Meaning of ER.258 Fault

The ER.258 fault is typically associated with the speed, torque, and position control in the servo system during the return-to-zero process. According to the design of the Inovance IS620P servo, the return-to-zero process begins after the motor contacts the limit switch. When the motor hits the limit switch, if the motor’s speed and torque meet certain threshold values, the system considers that the motor has reached the limit position and triggers the return-to-zero operation. However, in some cases, if the motor’s speed and torque are out of the normal range, or the system fails to accurately determine if the motor has stopped, the ER.258 fault is triggered.

1.2 Conditions for the Fault to Occur

Specifically, the ER.258 fault is triggered in the following situations:

Overcurrent or Overload: When the motor contacts the limit switch, if the current suddenly increases, or if the resistance at the limit position is too high, causing the motor’s torque to exceed the allowed range, an overcurrent or overload protection alarm will be triggered.
Exceeding Position Limit: When the motor reaches the mechanical limit, if it continues to try to move or cannot stop properly, the system considers that the motor has exceeded the predefined position and triggers the alarm.
Motor Has Not Fully Stopped: When the H05-56 parameter is set too sensitively (such as setting it to 0), the system might wrongly interpret that the motor has stopped while it has not completely stopped, leading to the ER.258 fault.

1.3 Influence of H05-56 Parameter on the Fault

The H05-56 parameter plays an important role during the return-to-zero process. It sets the minimum speed threshold, and when the motor’s speed falls below this value, the system assumes that the motor has stopped and initiates the return-to-zero process. If H05-56 is set to 0, the system becomes overly sensitive in determining if the motor has stopped, which might lead to the motor not fully stopping, but the system falsely interpreting it as a stop and triggering the ER.258 fault.

1.4 Impact of Parameter Setting on the Fault

When the H05-56 parameter is set to 1, the system requires the motor’s speed to drop below 1 rpm before it determines that the motor has stopped and initiates the return-to-zero process. This provides more time and space for the motor to decelerate and avoids triggering the fault caused by speed instability or excessive torque. According to data, changes in the H05-56 parameter directly affect the system’s tolerance, ensuring that the motor and drive system will not cause overcurrent or excessive torque after contacting the limit switch, thus preventing the ER.258 fault.

2. Causes of ER.258 Fault

2.1 Behavior of the Motor After Contacting the Limit Switch

During the return-to-zero process, the servo motor first contacts the mechanical limit switch. At this point, the motor’s torque and speed will be significantly affected. Once the motor contacts the limit switch, the system evaluates the motor’s speed and torque. If the torque exceeds a certain set value, the system assumes that the motor has reached the mechanical limit and stops further movement. If not, the motor may continue to attempt movement, leading to abnormal current or torque, triggering the ER.258 fault.

2.2 Incorrect Determination of Motor Stop Status

When the H05-56 parameter is set to 0, the system may mistakenly determine that the motor has stopped even if it has not completely stopped. This could happen because the motor might still have slight inertia or be moving slightly, causing the system to incorrectly interpret this as a stop condition and initiate the return-to-zero process prematurely, leading to the fault.

2.3 Excessive Current and Torque

After the motor contacts the limit switch, it may experience significant resistance or load, generating excessive torque. If the current exceeds the maximum allowable capacity of the drive, the system will trigger an overcurrent alarm, causing the ER.258 fault to occur.

2.4 Uneven Load or Slow Deceleration

If the motor’s load is uneven or the deceleration process is slow, the motor may continue to attempt movement after contacting the limit switch, generating excessive current or torque, triggering the ER.258 fault. Proper adjustment of the H05-56 parameter can help prevent this situation.

3. Handling Methods for ER.258 Fault

3.1 Adjusting the H05-56 Parameter

As mentioned earlier, the H05-56 parameter has a significant impact on the system during the return-to-zero process. Setting H05-56 to 1 can effectively prevent the ER.258 fault. This setting requires the motor’s speed to drop below 1 rpm before it is considered stopped, thus providing more time for the motor to decelerate and avoiding triggering the fault due to instability.

3.2 Checking Load and Torque

During the return-to-zero process, the motor’s load and torque can cause excessive current, triggering the ER.258 fault. Check whether the motor’s load and torque are too high and ensure that the motor can stop stably after contacting the limit switch. This will help avoid overcurrent or overload protection from being triggered.

3.3 Calibrating the Limit Switch

Check and calibrate the position of the mechanical limit switch to ensure that the motor stops at the correct position. Early or late contact with the limit switch could prevent the motor from stopping properly, leading to excessive torque and current, and triggering the ER.258 fault.

3.4 Adjusting the Motor’s Deceleration Settings

If the motor’s deceleration process is too slow, it may cause excessive torque or current, triggering the fault. Adjust the motor’s deceleration time and method to ensure that the motor decelerates smoothly after contacting the limit switch, avoiding excessive current and torque.

3.5 Regular Maintenance and Inspection

Regularly inspect the operation status of the servo system, including the motor, drive, limit switches, and other components. Clean the mechanical parts from dirt and check the motor’s operating condition to ensure that the system operates within normal ranges and prevent faults due to wear or malfunction.

4. Conclusion

The ER.258 fault is a common alarm in the Inovance IS620P servo system during the return-to-zero process. It is usually related to motor speed, torque, position control, and the functioning of the limit switch. By adjusting the H05-56 parameter, checking the load and torque, calibrating the limit switch, optimizing the motor deceleration settings, and performing regular maintenance, the occurrence of the ER.258 fault can be effectively prevented. Proper system settings and regular maintenance ensure the stable operation of the servo system, improving the reliability and efficiency of the equipment.

Posted on 2025年2月19日2025年2月19日 by baiyuzhan — Leave a comment

Analysis and Solutions for the Uu1 Fault in Yaskawa J1000 Series Inverters

The Yaskawa J1000 series inverters are widely used in industrial automation for their stable control performance and high energy efficiency. However, during actual operation, inverters may encounter various faults, one of which is the “Uu1” fault. This article will analyze the meaning, causes, and solutions for the Uu1 fault from both external and internal perspectives, providing a reference for inverter maintenance and repair.

I. Meaning and Causes of the Uu1 Fault

1. Fault Meaning

The Uu1 fault indicates an undervoltage output fault, meaning the inverter detects that the output voltage is below the set minimum value, triggering a protective mechanism. This fault often causes the inverter to stop, protecting the motor and load from potential damage.

2. Causes of the Fault

The Uu1 fault can be attributed to several factors:

Unstable power supply: The input voltage to the inverter is lower than the rated range, leading to insufficient output voltage.
Wiring issues: Poor contact in the input or output wiring causes voltage drops.
Internal inverter faults: Damage to the inverter’s internal circuits or components results in abnormal output voltage.
Motor or load faults: Issues with the motor or load cause abnormal feedback voltage.

3. On-Site Handling Methods

To address the Uu1 fault on-site, follow these steps:

Check the power supply voltage: Use a voltmeter to measure the inverter’s input voltage and ensure it is within the rated range. If the voltage is too low or unstable, inspect the power supply, and replace it or use a voltage stabilizer if necessary.
Inspect the wiring: Check the input and output wiring for proper contact, ensuring no loose or disconnected wires. If poor contact is found, reconnect the wiring and tighten the screws.
Examine the inverter internally: If the power supply and wiring are fine, the issue may lie within the inverter. Consult a professional technician or the manufacturer for repairs.
Check the motor and load: Ensure the motor is operating normally and inspect the load for any issues.
Reset the fault: After resolving the issue, press the RESET button on the inverter to clear the fault. Restart the inverter and observe its operation.

II. Analysis of Electrical Issues from the Inverter’s Internal Structure

1. Overview of the Inverter’s Internal Structure

The internal structure of the Yaskawa J1000 series inverter primarily includes the rectifier circuit, inverter circuit, control circuit, and protection circuit. The rectifier circuit converts AC voltage to DC voltage, the inverter circuit converts DC voltage to variable-frequency AC voltage, the control circuit regulates the output frequency and voltage, and the protection circuit detects and protects against faults such as overload, overvoltage, and overcurrent.

2. Electrical Issues Related to the Uu1 Fault

The Uu1 fault is typically associated with the inverter’s output circuit and involves the following aspects:

Rectifier circuit faults: Damage to diodes or capacitors in the rectifier circuit can lead to insufficient DC voltage, affecting the output voltage.
Inverter circuit faults: Damage to IGBT modules or driver circuits in the inverter circuit can cause abnormal output voltage.
Control circuit faults: Faults in the microprocessor or driver chips in the control circuit can result in inaccurate output voltage regulation.
Protection circuit faults: Malfunctioning detection components or protection chips in the protection circuit can lead to incorrect identification of undervoltage.

3. Electrical Repair Methods

To repair the Uu1 fault, follow these steps:

Inspect the rectifier circuit: Use a multimeter to test the diodes and capacitors in the rectifier circuit to ensure they are functioning correctly. Replace any damaged components.
Check the inverter circuit: Inspect the IGBT modules and driver circuits for proper operation. Replace any faulty modules or chips.
Examine the control circuit: Test the microprocessor and driver chips to ensure they are functioning correctly. Replace any faulty chips.
Inspect the protection circuit: Check the detection components and protection chips in the protection circuit for proper operation. Replace any faulty components.

III. Comprehensive Solutions for the Uu1 Fault

1. Preventive Measures

To prevent the occurrence of the Uu1 fault, consider the following measures:

Regularly check the power supply voltage: Periodically inspect the inverter’s input voltage to ensure stability.
Maintain wiring connections: Regularly check the wiring for proper contact and address any issues promptly.
Inspect the inverter internally: Periodically check the inverter’s internal circuits to identify and resolve potential faults early.
Maintain the motor and load: Regularly inspect the motor and load to ensure they are operating correctly.

2. Fault Handling Procedure

When addressing the Uu1 fault, follow this procedure:

Confirm the fault: Verify the Uu1 fault on the inverter’s display.
Check the power supply voltage: Ensure the input voltage is normal.
Inspect the wiring: Check for proper wiring connections.
Examine the inverter internally: Ensure the internal circuits are functioning correctly.
Check the motor and load: Verify that the motor and load are operating normally.
Reset the fault: After resolving the issue, reset the inverter and observe its operation.

3. Professional Support

If the Uu1 fault cannot be resolved through the above methods, consult a professional technician or the manufacturer for further assistance.

Conclusion

The Uu1 fault in the Yaskawa J1000 series inverters is a common undervoltage output fault with complex causes, involving the power supply, wiring, internal circuits, motor, and load. Through systematic fault analysis and step-by-step troubleshooting, the Uu1 fault can be effectively resolved, ensuring stable inverter operation. Regular maintenance and preventive measures are also crucial in avoiding such faults.

Posted on 2025年2月17日2025年2月18日 by baiyuzhan — Leave a comment

User Manual Guide for Delta VFD-VE Series

The Delta VFD-VE series is a high-performance variable frequency drive widely used in various industrial automation scenarios. This article provides a detailed guide on the operation panel functions, parameter settings, fault codes, and their solutions to help users effectively use and maintain this device.

Operation Panel Functions

Operation Panel Features

The operation panel of the Delta VFD-VE series is primarily composed of the digital operator KPV-CE01, which offers rich display and operation functions. Users can perform parameter settings, run control, and fault diagnosis through the panel. The main functions include:

Parameter Settings: Users can set various parameters such as frequency, voltage, and current via the operation panel.
Run Control: The panel provides basic run control functions such as start, stop, forward, and reverse.
Fault Diagnosis: When a fault occurs, the panel displays the corresponding fault code to help users quickly identify and resolve issues.

Parameter Initialization

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

Enter the parameter setting interface and locate parameter 00-02.
Set parameter 00-02 to 9 (restore factory settings with a base frequency of 50Hz) or 10 (restore factory settings with a base frequency of 60Hz).
Confirm the setting to reset all parameters to their default factory values.

Parameter Copying

To copy parameters from one drive to another, follow these steps:

Use the parameter copy function of the digital operator KPV-CE01 to export and save the current drive’s parameters.
Import the saved parameter file into the target drive to complete the parameter copying process.

Setting and Removing Passwords

To protect the drive’s parameter settings, users can set a password to restrict access:

Enter the parameter setting interface and locate parameter 00-08.
Input a 4-digit password. Once set, the parameters will be locked.
To remove the password, set parameter 00-08 to 0.

Parameter Access Restriction

Users can restrict access to parameters by setting parameter 00-07:

Enter the parameter setting interface and locate parameter 00-07.
Input a 4-digit access code. Once set, only users who know the access code can modify the parameters.

External Terminal Control

Forward and Reverse Control via External Terminals

To implement forward and reverse control via external terminals, set the following parameters:

Parameter 00-23: Set to 0 (forward and reverse allowed), 1 (reverse prohibited), or 2 (forward prohibited).
Terminal Connections: Connect the external control signals to terminals FWD (forward) and REV (reverse).

Frequency Control via External Potentiometer

To achieve frequency control via an external potentiometer, set the following parameters:

Parameter 00-20: Set to 2 (frequency controlled by external analog input).
Terminal Connections: Connect the output signal of the external potentiometer to terminal AVI (analog voltage frequency command).

Fault Codes and Solutions

The Delta VFD-VE series may encounter various faults during operation. Here are some common fault codes and their solutions:

OC (Overcurrent): Indicates that the drive has detected an overcurrent, possibly due to excessive load or motor failure. The solution is to check the load and motor status, reducing the load or replacing the motor if necessary.
OV (Overvoltage): Indicates that the drive has detected an overvoltage, possibly due to a high source voltage. The solution is to check the source voltage and ensure it is within the allowable range.
LV (Low Voltage): Indicates that the drive has detected a low voltage, possibly due to a low source voltage. The solution is to check the source voltage and ensure it is within the allowable range.
OH (Overheat): Indicates that the drive is overheating, possibly due to poor heat dissipation or high ambient temperature. The solution is to check the heat dissipation conditions and ensure the drive is in a well-ventilated environment.
PHL (Phase Loss): Indicates that the drive has detected a phase loss, possibly due to a fault in the power supply line. The solution is to check the power supply line and ensure it is functioning correctly.
GFF (Ground Fault): Indicates that the drive has detected a ground fault, possibly due to an internal wiring fault. The solution is to check the internal wiring and replace any faulty components if necessary.

Conclusion

The Delta VFD-VE series is a powerful variable frequency drive that allows precise motor control through proper parameter settings and correct operation. This guide provides detailed information on the operation panel functions, parameter settings, fault codes, and their solutions to help users effectively use and maintain this device. In practical applications, users should set the drive’s parameters according to specific needs and environmental conditions to ensure stable and reliable operation.

Posted on 2025年2月17日2025年2月17日 by baiyuzhan — Leave a comment

Siemens SINAMICS S120/S150 User Manual: An Operational Guide

The Siemens SINAMICS S120/S150 drive systems are widely used in industrial automation for controlling electric motors. In this guide, we will explore the various features and operations of these systems, covering aspects such as the operation panel, parameter copying, initialization, password settings, parameter access control, and external control connections.

1. Introduction to the Operation Panel (BOP20)

The Basic Operator Panel (BOP20) is an essential interface for the SINAMICS S120 system, offering six buttons and a backlit display for operation. It is designed for simple and efficient interaction with the system, enabling the user to input parameters, display runtime status, and manage errors.

Key Features of BOP20:

Control and Monitoring: It allows users to input parameters, monitor the system status, and reset faults.
Access Control: Through the BOP20, users can set the access level, where higher access allows modification of more parameters.
Error Handling: The panel displays alarms and errors, with options to acknowledge and reset them*2. Copying Parameters Between Drives**

Copying parameters from one drive to another is a common requirement when setting up multiple systems with the same configuration. This can be easily done using the BOP20 or through the expert parameter settings in the STARTER software.

To copy parameters from RAM to ROM:

Press and hold the “P” button for three seconds, or
Use parameters like p0009 = 0 and p0977 = 1 to initiate the copy .

This sures that all system parameters are consistent across devices and securely saved in non-volatile memory.

3. Parameter Initialization and Factory Reset

For initial setups or after a fault, it may be necessary to perform a full initialization or a factory reset. This can be done either by using the BOP20 or directly through software tools.

To reset the system:

Set parameter p0009 = 30 to perform a factory reset.
Ensure all components return to their default settings.

This procedure is essential for clearing incorrect configurations or preparing a device for deployment in a different setup.

4. Password Management

To protect the drive system’s settings from unauthorized changes, the S120 allows the user to set a password for configuration access. Passwords can be configured and removed using parameters in the system.

Setting a Password: Input the desired password through parameter settings in the expert parameter list.
Removing a Password: The password can be cleared by setting specific parameters (e.g., p9761 = 0) .

**5. Par*

Access control is crucial for preventing unauthorized changes to system parameters. The S120 system allows for different levels of access, controlled via the BOP20 or the parameter configuration menu. By adjusting the parameter p0003, users can restrict access to certain critical parameters, ensuring that only qualified personnel can modify essential settings .

6. External Control: Forwarrse Rotation, Speed Control via Potentiometer

The SINAMICS S120 offers flexible options for integrating external devices, such as external switches and potentiometers, to control motor operations.

Forward and Reverse Rotation: You can connect external terminals to control the motor’s direction. Specific parameters (P2589 and P2590) are used to define the command source for forward and reverse motion .
Speed Control: For adjusting motor speexternal potentiometer, parameters such as P2585 and P2586 can be set to receive and process the analog signals from the potentiometer .

This flexibility ensures that the S120 can be tailorde range of industrial applications, offering both manual and automated control options.

CU310-2 PN standard wiring diagram with safety function

7. Common Fault Codes and Troubleshooting

The S120 system is equipped with an extensive set of diagnostic tools to identify and address issues quickly. Some common fault codes include:

F01650/F30650: This fault is triggered when the CRC check for Safety Integrated (SI) parameters fails .
F01680/F30680: This indicates discrepancies in the safettion during operation .

To troubleshoot, ensure that parameters related to Safety Integrated ary configured and that any changes to the system are properly validated through the STARTER or BOP20 interface .

8. Conclusion

The SINAMICS S120 and S150 drives offer advanced feature control, with a user-friendly interface, flexible configuration options, and robust safety and diagnostic features. By understanding the operation panel, copying parameters, initializing settings, and configuring passwords and external control systems, users can ensure optimal performance and secure operation of their industrial automation systems. Additionally, being aware of the fault codes and how to address them will help maintain the system’s reliability and efficiency.

For more advanced configurations and troubleshooting, refer to the SINAMICS S120 Parameter Manual and the related documentation to fully leverage the capabilities of these systems.

This guide incorporates the essential features of the SINAMICS S120 and S150 systems, as outlined in the manuals provided, and addresses user concerns regarding setup, security, control, and fault management.

Posted on 2025年2月16日2025年2月16日 by baiyuzhan — Leave a comment

Analysis and Solutions for Error Code “r13000” on Siemens SINAMICS S120/S150 Drives

1. Meaning of Error Code “r13000”

On Siemens SINAMICS S120 and S150 servo drives, error codes starting with “r” followed by five digits are used to indicate various issues. The “r13000” error code typically relates to feedback system problems in the closed-loop control mode. Specifically, this error may involve the following:

Feedback Configuration or Signal Failure: The drive may not be receiving signals from the feedback device (e.g., encoder), causing the control system to lack necessary feedback information.
Control Mode Conflict: If the drive is not configured for the appropriate control mode, the feedback system may fail to work correctly, triggering the “r13000” error.

2. Possible Causes

Common causes for the “r13000” error code include:

Feedback Device Failure: The feedback sensor or encoder may be malfunctioning, leading to loss or abnormal signals.
Connection Issues: Loose, disconnected, or poor connections between the feedback device and the drive may be causing the error.
Incorrect Parameter Configuration: The drive’s parameters might not match the actual application, leading to a mismatch between the control mode and feedback system.
Hardware Failure: The drive itself may have a hardware issue, affecting the processing of feedback signals.

3. Solutions

To troubleshoot and resolve the “r13000” error, the following steps can be taken:

Check the Feedback Device: Verify that the feedback sensor or encoder is working properly and providing stable output signals.
Inspect the Connections: Check the cables connecting the feedback device to the drive, ensuring they are securely connected with no loose or disconnected wires.
Verify Parameter Configuration: Using tools such as TIA Portal, check the drive’s parameter settings to ensure they match the actual application, particularly parameters related to closed-loop control mode.
Review Error Logs: Use the drive’s diagnostic function to check the error logs for more detailed information on the fault.
Restart the Drive: After addressing the potential issues above, try restarting the drive to see if the error persists.
Contact Technical Support: If the issue is not resolved by the above methods, contact Siemens technical support for professional assistance.

4. Preventive Measures

To prevent the occurrence of the “r13000” error, the following preventive measures can be implemented:

Regular Maintenance: Perform routine checks and maintenance on feedback devices to ensure they are functioning properly.
Correct Parameter Configuration: Ensure that all parameters in the drive’s configuration match the actual application, avoiding issues caused by misconfiguration.
Training for Operators: Provide training for operators to familiarize them with the operation and maintenance of the drive, reducing human errors.
Use High-Quality Components: Use high-quality feedback devices and cables to minimize hardware failures.

5. Conclusion

The “r13000” error code is a common fault indication in Siemens SINAMICS S120 and S150 servo drives, typically related to feedback system issues in the closed-loop control mode. By analyzing potential causes and implementing corresponding solutions, this error can be effectively diagnosed and resolved. In practical applications, regular maintenance, correct parameter configuration, operator training, and the use of high-quality components can help reduce the occurrence of similar faults.

Posted on 2025年2月16日2025年2月16日 by baiyuzhan — Leave a comment

Methods for Unlocking Hidden Parameters and Modifying Mainboard Power of ABB ACS800 Series Inverters

The ABB ACS800 series inverters are high-performance inverters widely used in industrial control. To meet the needs of different application scenarios, users sometimes need to adjust the power of the inverter or unlock hidden parameters. The following will detail the methods for unlocking hidden parameters and modifying the mainboard power of the ACS800 series inverters.

Method for Unlocking Hidden Parameters

In the ACS800 series inverters, some parameters are hidden and can only be accessed by following specific steps. Here are the steps to unlock hidden parameters:

Enter the parameter setting interface: First, enter the parameter setting interface of the inverter.
Set the unlock code: Set parameter 16.03 (PASS CODE) to 358. This operation will unlock the hidden parameter groups and make them visible.
Access hidden parameters: After unlocking, you can access hidden parameter groups such as group 112 and group 190.

By following these steps, users can access and modify parameters that are usually invisible for more advanced settings and adjustments.

Method for Modifying Mainboard Power

In some cases, users may need to adjust the power of the ACS800 inverter. The following are the steps for modifying the power of RDCU boards with different versions:

For RDCU Boards with Version Numbers Before 7200

Enter parameter 9903 and change it to YES.
Enter parameter 1603 and change it to 564.
Enter parameter 11206 and select XXNONE.
Power off and then on again.
Re-enter parameter 1603 and change it to 564.
Enter parameter 11206 and select the desired power (e.g., 170-3).
Initialize the parameters.
Power off and then on again.

For RDCU Boards with Version Numbers 7200 and Later

Enter parameter 9903 and change it to YES.
Enter parameter 1603 and change it to 564.
Enter parameter 11221 and select the desired power (e.g., 170-3).
Re-enter parameter 9903 and change it to YES.
Power off and then on again.

Notes:

Parameters 11219 to 11223 correspond to different power levels. Be cautious when modifying them to select the correct parameters.
For inverters in normal use, do not operate or modify parameters arbitrarily to avoid losing normal parameters.
Using parameter 2303 can open single drive groups from 100 to 202.

Steps for Changing Inverter Type

In addition to changing the power, sometimes it is also necessary to change the type of inverter. Here are the steps for changing the inverter type:

Set parameter 16.03 (PASS CODE) to 564 to make parameter groups 112 and 190 visible.
Select the desired inverter type from parameter groups 112.20 to 112.36. For example, for an ACS800-01-0016-3 machine, select 11.21 = sr0016_3.
The panel will prompt to power off. Power off the RMIO board and then on again.

Conclusion

By following these methods, users can unlock the hidden parameters of the ABB ACS800 series inverters and adjust the mainboard power and inverter type as needed. These operations can help users better adapt to different application scenarios and improve the flexibility and performance of the equipment. However, when performing these operations, be cautious and ensure that the correct parameters are selected to avoid affecting the normal operation of the equipment.