Reduce the starting current of the motor, reduce the di-stribution capacity, and avoid investment in capacity ex-pansion;
Reduce starting stress and extend the service life of motors and related equipment;
Smooth start and soft stop avoid the surge problem and water hammer effect of traditional starting equipment;
A variety of starting modes and a wide range of current and voltage settings, can adapt to a variety of load occ-asions, improve the process;
Improve the reliable protection function, more effective-ly protect the safety of the motor and related equipment;
Can be used for frequent start and stop The occasion.
In the trend of advocating smart and simple industrial automation, environmentally friendly products, value-added solutions, K-Drive, as one of the world's leading drive manufacturers aggressively investing in R&D, production, and continuous quality improvement, is well positioned to provide its customers with technology-driven, performance-outstanding products such as VFDs, wind power converters, servo drives, HEV/EV drives, helping its customers save energy and increase industrial productivity with sustainability on the one hand, and enhancing their entire value-chain quality, delivery, and services on the other hand.
In production, rigorous quality control is implemented on components, circuit boards, and the finished goods, assuring products without defects.
| Performance | Common brands | K-Drive |
|---|---|---|
| Applicable motors | Asynchronous motors | Asynchronous /synchronous motors |
| Starting torque | 2.0Hz, 150% (sensor-less vector control) 0Hz, 180% (closed-loop vector control) | 0.5Hz, 180% (sensor-less vector control) 0Hz, 200% (closed-loop vector control) |
| Speed adjustable range | 1:100 (SVC), 1:1000 (VC) | 1:200 (SVC), 1:1000 (VC) |
| Ambient temperature (no derating required) | -10-40ºC | -10-50ºC (for most of the models) |
| Rated input voltage | 208VAC-400VAC | 208VAC-480VAC |
| Communication | Modbus RTU//ASCII | Modbus RTU//ASCII Profibus-DP, CANopen, etc. |
| Position control (fixed length, or angular positioning) | × | √ |
| Field weakening control | × | √ |
| Autotune online | Online | Online & Offline |
| Short-time ramp-up | Trip | No trip |
| Customized features (software and/or hardware) | Unprocurable or no experience | Procurable with rich experience |
Soft start and AC driver are both technologies used in power electronics, but they serve different purposes.
Soft start is a technique used to gradually ramp up the voltage or current to an electronic device when it is first turned on. This is done to prevent sudden voltage or current spikes that could damage the device or cause it to malfunction. Soft start is commonly used in power supplies, motors, and other high-power electronic devices.
AC driver, on the other hand, is a device that controls the power delivered to an AC load such as a motor, light, or heater. AC drivers are used to regulate the speed or intensity of the load, and they can provide precise control over the power delivered to the load. AC drivers can be controlled by a variety of signals, including analog signals such as voltage or current, or digital signals such as pulse-width modulation (PWM).
In summary, while soft start and AC driver are both used in power electronics, soft start is used to gradually ramp up power to prevent damage to electronic devices, while AC driver is used to regulate the power delivered to an AC load such as a motor or light.
