Inverters have many setting parameters, each with a certain range of choices. During use, it is common to encounter situations where the inverter cannot operate normally due to improper parameter settings. Therefore, it is necessary to correct the relevant parameters.

A. Control Method: Speed control, distance control, PID control, or other methods. After adopting a control method, static or dynamic identification is usually performed based on control accuracy.
B. Minimum Operating Frequency: This is the minimum speed of the motor. When the motor operates at low speeds, its heat dissipation performance is poor. Prolonged low-speed operation can lead to motor burnout. At low speeds, current in their cables also increases, which can cause cable overheating.
C. Maximum Operating Frequency: Generally, the maximum frequency of an inverter is 60Hz, though some can reach up to 400Hz. High frequencies make motors run at high speeds, so for ordinary motors, their bearings cannot withstand prolonged operation at rated speeds. The rotor must be able to handle such centrifugal forces.
D. Carrier Frequency: The higher the carrier frequency, the greater the harmonic content, closely related to factors like cable length, motor heating, and inverter heating.
E. Motor Parameters: Set the motor power, current, voltage, speed, maximum frequency, etc., directly from the motor's nameplate.
F. Skip Frequencies: Resonance may occur at certain frequency points, especially when the entire device is relatively high; when controlling compressors, avoid the surge point of the compressor. Inverters have many functional parameters, and users can select dozens or even hundreds of parameters. In practical applications, not every parameter needs to be set and debugged. Most only need to use factory settings.
Acceleration and deceleration time.
Acceleration time is the time required for the output frequency to rise from _0 to the maximum frequency, while deceleration time is the time needed for the output frequency to drop from the maximum frequency to 0. Typically, acceleration and deceleration times are determined by the rise and fall of the frequency setting signal.
When accelerating the motor, limit the speed set by the frequency to prevent overcurrent; during deceleration, limit the descent speed to prevent overvoltage. The key points for setting acceleration time require limiting the acceleration current below the inverter's overcurrent capability to avoid overcurrent losses.
The key point for setting deceleration time is to prevent regenerative overvoltage caused by smooth circuit overvoltage, leading to inverter tripping. Acceleration and deceleration times can be calculated based on load, but during debugging, they are often negative. First, set longer acceleration and deceleration times based on load and experience, then start and stop the motor to observe if there are any overcurrent or overvoltage alarms; gradually shorten the set acceleration and deceleration times, repeating several operations under the principle of no alarms. This process determines the optimal acceleration and deceleration times.
Sunye Electric Co., Ltd. (Changsha Sunye Electric Co., Ltd. was established in 2010; Shenzhen Sunye Electric Co., Ltd. was established in 2002) is a national high-tech enterprise integrating R&D, manufacturing, and sales of inverters, industry-specific all-in-one machines, servo drives, and new energy products.
Sunye Electric owns independent intellectual property rights. Its products have passed inspections and certifications by national authoritative institutions and have obtained multiple software copyrights and IP certificates. It invests heavily every year in researching new technologies and developing new products, with many patents and software copyrights granted. The company possesses core platform technologies such as construction hoist drivers, high-performance vector inverters, servos, and permanent magnet synchronous motor controls. Its low- and medium-voltage inverters and servo drives are widely used in industries such as lifting equipment, stone processing, HVAC, machine tools, metal products, wire and cable, plastics, printing and packaging, textile and chemical fibers, building materials, metallurgy, coal mining, municipal services, and automotive applications. Guided by the philosophy of "innovation, technology, and strength," and driven by the corporate spirit of "unity, progress, pragmatism, and innovation," the company adheres to the business principle of "honesty and excellence, mutual benefit and coexistence." With a quality policy of "implementing total quality management and continuous improvement to pursue zero defects," Sunye Electric is committed to providing premium products to customers across various industries.
Address: Sunye Electric Industrial Park, No. 669 Xinsheng Road, High-Tech Zone, Changsha City
Tel/Fax: 0731-89932666 0731-89932688
Business Phone: 400-0755-731
Technical Support: 400-0755-731