I. Introduction
The Xinshuangyuan AT Series Frequency Inverter is a widely used device in the field of industrial control. Its user manual serves as an essential guide for users to operate and maintain the inverter correctly. This document, based on the contents of the user manual, provides a detailed introduction to the operation panel functions, parameter setting methods, implementation of external control functions, and troubleshooting of fault codes for the AT Series Frequency Inverter, aiming to assist users in better understanding and utilizing the inverter.
II. Introduction to Operation Panel Functions
The operation panel of the Xinshuangyuan AT Series Frequency Inverter is the primary interface for user interaction with the inverter. Through the operation panel, users can perform tasks such as parameter setting, status monitoring, and fault diagnosis. Below is an introduction to the functions of each key on the operation panel:
- Programming Key: Used to select between normal mode and programming mode. This key is effective whether the inverter is running or stopped. To modify parameters, users must press this key to enter programming mode.
- Function/Save Key:
- Normal Mode: Pressing this key displays various information about the inverter’s status, such as target frequency, output frequency, current, and temperature.
- Programming Mode: Pressing this key displays parameter contents and, when pressed again, saves any changed parameter values.
- ▲ Key: Increases parameter numbers or values. A short press results in step-by-step changes, while a long press leads to rapid changes.
- ▼ Key: Decreases parameter numbers or values.
- Shift Key: Used for shifting in programming mode and jogging in normal mode.
- Forward/Reverse Key: Toggles between forward and reverse rotation.
- Start Key: Initiates the output of the inverter.
- Stop/Reset Key: Stops operation and resets faults.
III. Parameter Setting and Password Management
1. Parameter Initialization
Although the user manual does not directly mention the steps for parameter initialization, users can achieve it through the following method:
- Enter programming mode and locate the parameter group that needs to be initialized.
- Restore the parameter values to their defaults.
- Save the parameters and exit programming mode.
2. Password Setting
To protect the inverter’s parameters from unauthorized modifications, users can set a password. Below are the relevant parameters for password setting:
- P008: Hidden password, with a range of 0-65535 and a default value of 00000 (no password). Users can set a password as needed.
- P009: Password input. When the value of P009 equals the hidden value of P008, P008 and other parameter values can be changed. After a power-off restart, P009 will be cleared, and the password must be re-entered to modify parameters.
3. Parameter Access Restrictions
Some parameters of the Xinshuangyuan AT Series Frequency Inverter are only applicable to certain models. For example, gray parameters are exclusive to advanced models with PID/485 functions and are invalid for standard models. Additionally, specific parameters are exclusive to the AT2 model (such as P97, P98) and time counter models (such as *93, *94). Users should pay attention to the applicable range of parameters when setting them.
IV. Implementation of External Control Functions
1. External Terminal Forward/Reverse Control
The Xinshuangyuan AT Series Frequency Inverter supports external terminal forward/reverse control. Below is the wiring method for the AT3 model:
- X4 Input Port 4: Line-controlled forward rotation. Short-circuiting X4 with COM activates the input signal.
- X5 Input Port 5: Line-controlled reverse rotation. Short-circuiting X5 with COM activates the input signal.
For AT1, AT4, and AT2 models, although the user manual does not directly mention the specific terminals for external terminal forward/reverse control, users can achieve forward/reverse control through multifunction input settings.
2. External Potentiometer Frequency Regulation
The Xinshuangyuan AT Series Frequency Inverter supports external potentiometer frequency regulation. Below are the wiring and parameter setting methods:
- Wiring: Users can achieve external potentiometer frequency regulation through external analog voltage input (VI1, 0-5V/10V) or external current signal input (CI, 4-20mA). Refer to the wiring diagram in the user manual for specific wiring methods.
- Parameter Settings:
- P010: Source of operating frequency. Select external analog signal (2) or CI (3) as the frequency source.
- Other relevant parameters (such as P000-P007) may need to be adjusted to match the input range of the external potentiometer.
V. Fault Codes and Troubleshooting Methods
The Xinshuangyuan AT Series Frequency Inverter provides detailed fault codes and troubleshooting methods. Below are some common fault codes and their corresponding troubleshooting methods:
- Err 1: Overcurrent/Output Short Circuit
- Troubleshooting Method: Check the output circuit and motor for short circuits, and eliminate any short-circuit faults.
- Err 2: Undervoltage Protection
- Troubleshooting Method: Check if the input power supply voltage is normal and eliminate any issues with low power supply voltage.
- Err 3: Overvoltage Protection
- Troubleshooting Method: Check if the input power supply voltage is too high or if there is a fault in the inverter’s internal voltage detection circuit.
- Err 4: Drive Circuit Fault
- Troubleshooting Method: Contact professional maintenance personnel to inspect and repair the drive circuit.
- Err 5: Start Input During Power-On
- Troubleshooting Method: Check if there is an accidental start signal input during power-on and eliminate any misoperations or circuit faults.
- Err 6: Overcurrent Protection
- Troubleshooting Method: Check if the motor and load are overloaded or if there is a fault in the inverter’s internal current detection circuit.
- Err 7: Timeout
- Troubleshooting Method: Check the inverter’s runtime settings or related timer settings and eliminate any timeout faults.
- Err 8: Radiator Overheating
- Troubleshooting Method: Check if the radiator is blocked, if the ambient temperature is too high, or if there is a fault in the inverter’s internal temperature detection circuit.
- Err 9: External Fault
- Troubleshooting Method: Check the external control signal lines and equipment and eliminate any external faults.
VI. Conclusion
The user manual for the Xinshuangyuan AT Series Frequency Inverter is an essential guide for users to operate and maintain the inverter correctly. This document, based on the contents of the user manual, provides a detailed introduction to the operation panel functions, parameter setting methods, implementation of external control functions, and troubleshooting of fault codes. It is hoped that this document can assist users in better understanding and utilizing the Xinshuangyuan AT Series Frequency Inverter, thereby improving the operational efficiency and reliability of the equipment. In practical applications, users should refer to the user manual for operation and maintenance according to their specific needs and equipment models.