Wide application range
It is suitable for vector control of asynchronous motor and permanent magnet synchronous motor, which effectively reduces the inventory of users, without considering the compatibility of motor types and preparing different inverter inventory for different motors.
Perfect performance
Good control performance: speed control ratio (SVC) of 1: 200, starting torque of 0.25 Hz/ 1.50%, multiple braking modes, and fast flux braking mode without braking resistor.
Strong environmental adaptability
Compact structural design, independent air duct design, various installation methods, greatly improving power density, effectively reducing the user's installation volume requirements and meeting harsh user installation conditions. The fully independent air duct design can effectively improve the protective effect of the inverter and adapt to various complex user site environments. Compatible with bottom plate installation and flange installation to meet different user needs.
Rich in functions
Two groups of motor parameters, V-F separation setting, virtual terminal function, speed tracking, relay delay output, etc. Two sets of motor parameters, using a frequency converter to meet the different motors of customers, effectively reducing the equipment investment of customers; V-F separation function can meet the needs of various customers of variable frequency power supply and realize the flexible setting of V/F curve.
high reliability
CE certification, multiple protection functions and high reliability design.
1, introducing thermal simulation technology to conduct thermodynamic simulation on all models, effectively planning heat dissipation of the whole machine and improving product reliability;
2. The whole series of products have built-in C3 filter, which effectively eliminates the interference of the inverter to the outside world and improves product compatibility;
3. All products have been verified by complex products such as high temperature, low temperature, low air pressure and vibration, so as to ensure the reliability of products from the source;
4. All products have passed the product certification of TUV-SUD in Germany, with TUV-mark and CE certification marks, and the products have reached the most demanding product technical standards in Europe;
5. Powerful hardware configuration: wide voltage range input, support for DC input, * * DC bus design, built-in braking unit (below 30kW), external high-performance LED keyboard, numerous I/O terminals, C3 filter as standard, etc.
6, wide voltage input range, to ensure that the product meets the field needs of different users, while supporting DC voltage input;
7. The whole series supports * * * branch bus scheme;
8. Support the function of independently controlling power supply, which can meet the debugging needs of customers;
9. Built-in braking unit with maximum power of 30kW (inclusive);
10, providing high-performance LED keyboards for customers to choose from;
1 1, multi-channel I/O terminal input and output: three analog inputs; 2 analog outputs; Eight common digital inputs, with the maximum frequency of1khz; 1 high-speed digital input with the highest frequency of 50kHz; ; 1 high-speed digital output, 1 Y-terminal open collector output;
12, supporting multi-channel analog input of-10V~ 10Vd.
Provide a variety of options.
Various communication expansion cards, high-performance LCD keyboards, filters, auxiliary power supplies, braking units, energy feedback units, reactors.
1, Modbus communication mode is standard;
2. Provide Profibus-DP card, which users can choose;
3. Provide Ethernet -IP card, which users can choose;
4. Provide your own input filter to choose from. All filters are tested by EMC to ensure that they meet the most stringent European EMC standards. Using dual CPU(DSP+MCU) control platform, the functional algorithm and performance algorithm are separated, and the system is driven by optical fiber conduction, which has high reliability and stability. Mainly used in coal mine, petroleum, municipal engineering, chemical industry and other industries.
Product features:
1, power range:15kw ~1500kw;
2. Input power supply: three-phase AC 660V or three-phase AC 1 140V, 50Hz；;
3. Control mode: no PG vector control, PG vector control, torque control and V/F control;
4. Starting torque: OHz/ 180%(VC) with PG vector control: 0.5 Hz/ 150% (SVC) without PG vector control;
5, soft start and soft stop are realized for heavy loads, the starting current is small, the starting speed is stable, and the impact on the power grid is small;
6. The S-shaped curve can be flexibly adjusted according to the field working conditions to reduce the dynamic tension on the equipment during startup;
7, as many as 27 kinds of operation control and protection, such as overcurrent, overvoltage, overload, undervoltage, lack of phase, short circuit, etc. ;
8. Expansion cards can be selected according to customer requirements;
9. Explosion-proof design can be selected. Multi-phase-shifting rectification and inverter technology, less harmonics and high power factor. Adopting international advanced control platform, built-in PID regulator and terminal programmable setting function can realize closed-loop control and perfect protection function. Mainly used in electric power, metallurgy, petroleum and petrochemical, chemical, building materials, municipal and other industries.
Product features:
1, power range:185 kw ~ 7100 kw;
2. Modular electronic building blocks are designed by adopting the cascade structure of power units;
3. Adopting multiple phase-shifting rectification technology, with less harmonics and high power factor, which meets the most stringent requirements of power quality management;
4. Using multiple inverter technology, the output harmonics are less, the motor torque ripple is small, and the operation efficiency is high;
5. Using DSP and CPLD control platform, the real-time and reliability of system control are extremely high;
6. Built-in PID regulator and terminal programmable setting function are convenient to realize closed-loop control and meet the requirements of process control;
7, touch screen, program operation, analog potentiometer, voltage source, current source, communication interface and other frequency setting methods, flexible and convenient control methods;
8.AVR function design: even if the grid voltage fluctuates greatly, the output voltage can basically remain unchanged, which is suitable for China power grid;
9. Perfect protection function: it can reliably protect the high-voltage inverter from short circuit, overcurrent, overload, phase failure, three-phase imbalance, overheating of rectifier transformer and other faults.
10, multi-bypass function design: the power unit can be bypassed when the system is live, and the frequency conversion system runs continuously. Optimized V/F control
CHF series inverter adopts DSP control system to complete optimized V/F control, which has better performance than traditional V/F control.
Economic structure (G/P integration)
CHF series inverter is a universal inverter, mainly for customers with simple speed regulation application, and adopts G/P integrated structure, which can better meet the functional requirements of most customers.
1, independent external keyboard: realize dual control of local keyboard and external keyboard, and monitor the operation state of frequency converter;
2.LED external keyboard: it is a simple keyboard, which can realize all the functions of the local keyboard;
3.LCD external keyboard: it provides Chinese display and embedded parameter quick copy function;
4. Serial communication function: RS485 physical communication interface is provided and MODBUS RTU and ASC communication modes are embedded;
5. Terminal function: provide rich terminal control functions for users to choose freely.
Main technical parameters
1, output frequency range: 0.00 ~ 600.00Hz；;
2. Speed control mode: V/F control;
3. Command channel mode: operation panel, terminal control and remote communication control;
4. Frequency setting mode: digital keyboard setting, analog setting (current and voltage signal), high-speed pulse setting, remote communication setting, multi-speed setting, PLC setting, PID closed-loop setting, etc. , can be switched in multiple frequency combinations;
5. High starting torque:1Hz/150%;
6. carrier frequency range:1.0k ~15.0khz;
7. Speed control accuracy: 5% of the maximum speed;
8. Automatic voltage regulation (AVR): When the grid voltage changes, it can automatically keep the output voltage constant;
9. Automatic current limiting: it can limit the maximum current of the motor, thus reliably protecting the inverter and the motor;
10, swing frequency control: a variety of triangular wave frequency curves to meet the individual needs of the textile industry;
1 1, multi-function keyboard: provide three quick debugging modes to meet various application requirements of users;
12, all input and output terminals are programmable, which is convenient for users to use;
13, high-speed pulse input and output function: it can realize fixed-length control and pulse counting;
reliability design
1, full range of independent air duct design: radiator installation mode can be selected inside and outside the cabinet, fan replacement is convenient, and inverter maintenance is simple, which greatly improves the reliability of long-term operation of inverter in different application environments in textile, printing and dyeing, chemical fiber, paper making, wire drawing, cement manufacturing and other industries, and G/P integrated design is convenient for customers to choose;
2. Wide gate voltage design;
3. When the input voltage of the power grid is-15%~ 15%, the inverter can run safely, and the user does not need other treatment;
4. Super protection function: provide users with more than 20 kinds of fault protection functions, which can realize all-round protection from frequency converter to motor and peripheral equipment, provide automatic fault reset function, facilitate automatic troubleshooting of conventional faults, and have built-in lightning overcurrent protection device, effectively improving the self-protection function of induction lightning;
5. Standard manufacturing platform: anti-static, anti-corrosive, dustproof and three-proof paint treatment technology, professional assembly line and strict production management system.