1. High quality material and first-class technology
2. Powerful function, continuously variable transmission
3. Regular appearance, small and beautiful
4. Convenient operation and intuitive digital display

Specification

VFD type	HZ800SF	HZ300A	HZ800
Drive control mode	VF/ Current closed loop Vector/velocity closed loop vector	VF/ Current closed loop vector	VF/ Current closed loop Vector/velocity closed loop vector
Same power Starting torquecomparison	★★★★★	★★★★	★★★★★
Torque control	√	√	√
Shell color	Brown	Black	Black
Power range	Three-phase 380V: 0.75 kw ~ 110 kw	Single-phase 220V: 0.4 kw ~ 75 kw Three-phase 380V: 0.75 kw ~710 kw	Single-phase 220V: 0.4 kw ~ 75 kw Three-phase 380V: 0.75 kw ~710 kw
Operating keyboard	Dual row display/LCD Shuttle potentiometer	Single row display Adjustable potentiometer	Single row display Adjustable potentiometer
Synchronization rate volume	★★★	★★★★	★★★★
Multifunction input Number of terminals	8	8	8
Analog quantity Input quantity	2	2	2
Analog quantity Output quantity	2	2	2
Relay Output quantity	2	2	2
485 communication	√	√	√
Module/single tube	Module	Module	Module
An external expansion card is connected	X	X	Support expansion card (PG/IO)

Application

1. Frequency converter is used in the load of the feeder

In metallurgy, electric power, coal, chemical and other industries, there are many feeders. Whether the disc feeder or the vibration feeder, the frequency conversion speed regulation effect is very significant. The disc feeder of the sulfuric acid production line of the dye plant of the company is originally a slip speed regulation, low frequency torque is small, more failures, often stuck. After the use of frequency control, because it is asynchronous machine, high reliability, power saving, more important is the closed-loop and temperature transmitter to ensure the accuracy of conveying materials, not to make oxidant conveying excessive overtemperature and cause accidents, to ensure the orderly production.

2. Frequency converter is used in the load of stacker and reclaimer

Stacker and reclaimer is the main equipment of material stacker and reclaimer in coal yard, wharf and mine, and its main function is stacker and reclaimer. Realize automatic stacking and semi-automatic taking, improve the reliability of equipment, equipment running smoothly, no impact and shaking phenomenon, taking process according to 1/cosφ rule rotary speed regulation, improve the bucket reincarnations take efficiency and belt coal uniformity, very popular with workers.

3. Frequency converter is used in fan load

Fan load, is a large amount of wide range of equipment, steel mills, power plants, non-ferrous, mining, chemical, textile, chemical fiber, cement, paper and other industries more applications. Most of the use of adjusting baffle opening to adjust the air volume, waste a lot of energy, the use of frequency control, can save electricity and reduce mechanical wear, prolong the life of equipment.

4. Frequency converter is used in mixer load

Chemical, pharmaceutical industry mixer is very much, the use of frequency control instead of other ways of speed regulation, the benefits are much.

5. Frequency converter is used in spinning machine load

The process of spinning is complex, many stations require tension control, and some require position control. The effect of frequency control is good.

6. Frequency converter is used in special power supply load

Many power sources, such as experimental power sources and aircraft drag power sources (400Hz), can be completed by frequency conversion devices. The advantages are less investment, quick effect, small size and simple operation.