Settings of Delta frequency converters

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Settings of Delta frequency converters Multiple adjustments need to be made according to actual application requirements, motor characteristics and so on. The following is an introduction to the main parameter settings:

### Basic Parameter Settings

- **Input Power Supply Parameters**: Set parameters such as the input voltage, frequency and number of phases of the frequency converter according to the actual power supply situation. Usually, the power supply voltages available include 220V, 380V, 440V, etc. In China, the commonly used power supply is three-phase 380V.

- **Motor Parameters**: It is necessary to set parameters such as the rated power, rated current, rated voltage, rated frequency and the number of poles of the motor to ensure that the frequency converter matches the motor and enables the motor to operate normally.

- **Control Mode Selection**: Select the control mode according to the actual control requirements. For example, V/F control is suitable for occasions where the control accuracy requirements are not high, while vector control has higher control accuracy and dynamic response performance.

Operation Control Parameter Settings

- **Setting of the Source of Frequency Command**: Determine which way the frequency command of the frequency converter comes from, such as panel operation, external potentiometer, analog input, communication, etc.

- **Setting of the Source of Operation Command**: Select the way in which the operation commands such as start and stop of the frequency converter are given, whether through panel buttons, external terminals or communication, etc.

- **Acceleration and Deceleration Time Settings**: Set the acceleration time and deceleration time according to the inertia of the load and process requirements. If the acceleration time is too short, it may lead to overcurrent protection, and if it is too long, it will affect production efficiency; the same is true for the deceleration time.

### Output Parameter Settings - **Setting of the Output Frequency Range**: Set the upper and lower limits of the output frequency of the frequency converter to prevent the motor from being damaged or operating abnormally due to too high or too low frequency.

- **Settings of Multifunctional Output Terminals**: The multifunctional output terminals of the frequency converter can be defined as different functions according to needs, such as fault alarm output, operation status indication, etc. 

### Protection Parameter Settings

- **Overcurrent Protection Settings**: Set the threshold and action time of overcurrent protection. When the output current of the frequency converter exceeds the set value, take timely protection measures, such as cutting off the output or reducing the frequency, etc.

- **Overvoltage Protection Settings**: Monitor the DC bus voltage of the frequency converter. When the voltage exceeds the set value, trigger overvoltage protection to avoid damage to the internal components of the frequency converter due to overvoltage.

- **Undervoltage Protection Settings**: When the input voltage of the frequency converter is lower than the set undervoltage protection value, the frequency converter stops outputting to prevent the motor from abnormal operation due to undervoltage.

### Special Function Parameter Settings - **PID Control Parameter Settings**: In occasions requiring closed-loop control such as constant pressure water supply and constant temperature control, it is necessary to set PID control parameters, such as proportional gain, integral time, differential time, etc.

- **Multi-Speed Settings**: According to production process requirements, multi-speed operation parameters can be set, and different speed switching can be achieved through external terminals or communication control.