1. 因技术 得品质 以服务 RU Series AFE Unit & Regeneration Unit JiaWei Yang 08/2014

2. Contents Part of the product Product Specifications Product Introduction 2 1 3 4 Applications of product

3. Regeneration Unit, or The Energy Feedback Unit, the full name for “special energy feedback unit of frequency converter ”, is a kind of special inverter braking unit, is mainly used for large inertia frequency speed regulation system, help renewable electricity back to the grid produced in the process of the motor reducing the speed,help system achieve rapid braking. What is Regeneration Unit ？ 1. Product Introduction - Basic Concept

4. 2.Tandem energy feedback refers to feedback device and VVVF used in tandem, usually say "active front end rectifier and inverter"AFE （ Active Front End ） 1.Parallel energy feedback refers to feedback device and VVVF used in parallel. Classification: 1. Product Introduction - Basic Concept

5. 1. Product Introduction - Our product RU Series AFE Unit & Regeneration Unit arise at the historic mo- ment. RU600 was developed and launched in 2013, high-performance, active energy feedback unit 。 It can be used in conjunction with the inverter,can replace the traditional braking resistors, reducing heat generation.The effect of energy-saving is obvious. While minimizing the input side harmonics, Reduce the pollution to the grid in the use process of inverter. With a converter to achieve four- quadrant operation.

6. 1. Product Introduction - Our product Energy flow diagram Motor driven Braking VVVF Energy consumption braking mode Power supply Motor Energy resistance VVVF Energy feedback mode Power supply Motor Regene- ration unit VVVF AFE Mode AFEMotor Power supply RU600 RU630

7. Galvanized chassis effective safety ground Wall-mounted installation program supports and floor Independent duct design Efficient design parameters Pluggable terminal block design. Simplify loading and unloading. Design of new featur- es and ease of keyb- oard IPD complete development process Optimized thermal design model Power chip thermal assessment program A common platform of design and manufacture to ensure the quality. A Structure Design C Guaranteed by design B Easy to use 1. Product Introduction - Our product

8. Contents Part of the product Product Specifications Product Introduction 2 1 3 4 Applications of product

9. 2.Part of the product - The whole system diagram DC-Bus Drive and protection circuits Functional circuits and optical isolation

10. 2.Part of the product -RU600 Wiring Diagram The three phase grid Communi cation port ground Multi-function terminals Input Others: Standard RS485 communication terminals, Modbus protocol support External expansion card, Multi-machine communication interconnection

11. Contents Part of the product Product specifications Product introduction 2 1 3 4 Applications of product

12. 3. Applications of product - Typical applications Large cargo lifting equipment when removing the cargo ， installation RU600 / RU630 can replace conventional braking resistor. Elevator light load upward, overload downward,motor in the state of renewable energy, installation RU600 / RU630 can make Energy back to the grid, to save energy.

13. 3. Applications of product - Typical applications Energy feedback unit used in high inertia loads such as: fan, cement pipe, balancing machines, centrifuges grinder, etc. Energy feedback unit for applications requiring quick stop occasions, such as rolling mills, large planer, machine tools, presses, etc.

14. 3. Applications of product - Other applications Regeneration unit as inverter device for wind power, the electricity coming from wind power generator can be sent back to the utility grid by means of regeneration unit. Regeneration unit used in photovoltaic power generation, the electricity coming from photovoltaic panels can be sent back to the utility grid by means of regeneration unit. Energy feedback unit used in UPS power supply, EPS power supply, AFE units used in applications where a stable DC voltage is needed, energy feedback unit is used as a power inverter for local load electricity generation.

15. 3. Applications of product – applications in spot Regeneration unit RU630 was used in the Construction Machinery Company In Guangxi. RU600 was used in Motor Test System in our R&D laboratories and product plants. R&D Laboratories and production plants in A4

16. 3. Applications of product - Operating Mode Wiring a Automatic switching of the rectifier / feedback operation mode based on the bus voltage change, the current flow in both directions, the bus voltage is held constant, the power factor is close to 1. And can be limited to a single direction rectifier mode, provided for electrical constraints for irreversible system, such as diesel generators. CH1 ： Inverter input current waveform when RU600 is not used CH3 ： AFE input current waveform

17. 3. Applications of product - Operating Mode Wiring b ： When braking the motor, when the bus voltage exceeds the set voltage, the capacitor energy back to the grid. Improve the use of energy-efficient to achieve energy saving ， Compared with braking resistor. CH1 ： DC-bus voltage. CH3 ： feedback current RU630- 11kW

18. 3. Applications of product - Operating Mode RU600ModeWiringCurrent control 1 Four quadrant rectifierWiring aControllable bidirectional flow 2 Single rectifier modeWiring aControlled rectifier 3 Single feedback modeWiring bNetwork side flow RU630ModeWiringCurrent control 1 Single feedback modeWiring bNetwork side flow Well,let’s watch a video.

19. Contents Part of the product Specifications and attention Product Introduction 2 1 3 4 Applications of product

20. 4.Specifications and attention -Naming Rules Rated input voltageType Power （ kW ） Rated output current （ A ） Three-phase AC-380V RU600-030-33060

21. 4.Specifications and attention - Shape and Size Product model Shape Size/mmInstallation size/mmRemarks WHDW1H1D1 RU600-030-33165952492405738 RU630-011-3270480150 4829 W =316 W1=240 H =595 H1=573 D1=249 4-M6×12 4-M8×14 RU600 RU630

22. 4.Specifications and attention - Selection guide When using the four-quadrant mode rectifier mode, in accordance with the following selection table : Inverter power(kW) 7.59111522 30 RU power(kW) 1130 Dedicated to energy feedback mode (instead of braking resistor), you can press the selection table: Inverter power(kW) ≤1518.522303745 RU power(kW) 1130 Other products are in development.

23. Low harmonic value ： Advanced PWM technology, harmonic value of the current less than 5%. Power Factor: Real-time monitoring of the grid, to ensure that the power factor> 0.95(usually 0.98). Group control features: supports two sets of parallel, system expansion, networking group control Dynamic performance: solve fast transient braking problems, improve system braking performance Personalized solution:Solve lift type equipment overload problem Automatic current limiting: Automatically switched according to the external environment and usage Perfect solution in parallel circulation:reduce energy consumption, improve performance Perfect voltage loop control strategy:to ensure the DC-bus voltage of frequency converter accurate and stable 4.Specifications and attentio n - Technical Feature

24. 4.Specifications and attention -Attention Check program ： First power off Then check carefully First outside and then inside First control and then power part The red dashed box for RU600 Three-phase grid Inductance IGBT Model Frequency Convert Soft-Drive Fuse Switching Power Run time, to ensure Running lights are lit The control logic is normal Operating current and the detected current is consistent Input and Output terminals are normal capacitor

25. 4.Specifications and attention -Attention Tip1. It is different with the inverter, RU600 require real-time monitoring of the grid voltage.If it shows “LP”,after power on,firstly check the grid voltage detection line wiring is properly connected to the grid. Tip2. When using an external inductor,grid detection wire needs to be connected to the grid side. Tip3. Energy feedback unit and inverter applications in parallel mode, need to use Commonmode Choke in series with the bus, or will cause circulation, affecting the normal use. Tip4. Power normal, keyboard display properly on RU600, but the bus voltage and bus voltage of the inverter are inconsistent, to confirm the internal fuse is damaged or not. Tip5. It is different from the inverter, losing uncontrolled rectifier bridge, increasing the grid voltage detection circuit, so we can handle the rest of the abnormal as the inverter. In my experiment, encountered some problems, and share 5 tips with you:

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27. Thanks ！