In order to ensure the reliability of production, when Delta's inverter is planned to be equipped with power drive, in addition to meeting the power drive requirements, the remaining torque increases the consumption of active power. When using cost-effective Delta inverters to regulate the speed, if the flow requirement is reduced, the speed of the pump or fan can be reduced.
What are the fundamental methods for debugging Delta's inverters?
1. Acceleration and deceleration time
Acceleration and deceleration times are usually determined by the rise and fall of the frequency setting signal. In the commissioning of Delta inverters, it is often necessary to set a long acceleration and deceleration time according to the load and experience value, and it is necessary to constrain the frequency rise rate of the motor when accelerating to avoid overcurrent. When decelerating, the rate of decline is constrained to avoid overvoltage. Repeat the operation a few times, and you can determine the best acceleration and deceleration time.
2. Electronic thermal overload maintenance
This function is set to maintain the overheating of the motor, and it is a cost-effective Delta inverter that calculates the temperature rise of the motor according to the operating current value and frequency, so as to carry out overheating maintenance. This function is only applicable to the occasion of "one to one", and in the case of "one to many", thermal relays should be installed on each motor.
3. Frequency constraints
That is, the upper and lower amplitudes of the output frequency of Delta's inverter. Frequency restriction is a maintenance function to prevent damage to the equipment in order to avoid misoperation or failure of the external frequency setting signal source, which causes the output frequency to be too high or too low. This function can also be used as a speed limit, in order to reduce mechanical wear, the upper limit frequency of the Delta inverter can be set to a certain frequency value, so that the belt conveyor can run at a fixed, low operating speed.
4. Electromechanical resonance
By setting the frequency jump value, you can avoid the resonance point. Generally, Delta's inverters are equipped with a frequency hopping function, and the user can set the hopping point and width according to the frequency of vibration in the system. In this way, when the motor accelerates, it can automatically cross these frequency bands, so that the operating system of Delta's inverter can operate normally.
Through debugging, Delta's inverters will generally reach a state of saving power consumption during normal operation. There are many functional parameters of Delta inverters, and most machines only need to use the set values of Delta inverter manufacturers. However, some parameters are very related to the application of practice, and some are also related to each other, so they should be set and debugged according to practice.
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Delta's inverter is powered on and commissioned
After the installation of the Delta inverter is completed, disconnect the output of the inverter, use the diode file of the digital meter to measure the input and output of the inverter before the power is not turned on to ensure that there is no short circuit, and then turn on the operating power supply of the inverter.
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1. Circuit breaker
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Illustrate the following examples:
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Before operating the MS300 series products, please read and pay attention to the relevant safety information to ensure your own safety and product safety.
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How to choose Delta's servo motor
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Delta's inverter process setting
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