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Air Compressor

[WJ200] WJ200 Series

- Carrier group, Lift (Transverse / running), conveyors, cranes, hydraulic pumps, air conditioners, grinding, tire molding machines, rotary valve, FAN, PUMP suitable inverters combine high torque, etc.
- Single phase 100V class: 0.4kW, 0.75kW
- single phase 200V class: 0.1 2.2kW ~
- 3-phase 200V class: 0.1 ~ 15kW
- 3-phase 400V class: 0.4 ~ 15kW


Easy to use, high-performance inverter with a simple adjustment

1. Improvement of basic performance
- sensorless vector control with 200% more than in the same notice coke realized at 0.5Hz
- AC Induction Motor / PM Motor can be driven as an inverter
- equipped with a motor auto-tuning function the inherent characteristics of more effective and high-performance
- motor to realize constant automatic detection

2. trip inhibition achieved stable operation
- over-current and over-voltage suppression
- DC BUS AVR function during deceleration

3. built-in peripherals
- equipped with a Safety Stop feature high reliability due to hardware circuit emergency output disconnect
- all models equipped with the standard regenerative braking circuit
- micro-surge voltage suppression

4. improve ease castle
- dual rating function (heavy load, light load selectable) to reduce costs and improve work efficiency, promote the
- program operation with (simple sequence operation)
- top the device makes it possible to simplify the peripheral circuit space savings, contribute to the cost of the control panel
- integrated power monitor function

5. space-saving
- Side by Side is possible to effectively utilize an installation space to be installed
- 3.7KW up to a height equal to the control panel design easy

6. easy maintenance
- by adopting a design life of 10 years to realize long-life parts
- service life, the life warning function with
- a simple replacement of the cooling fan can be
- removable terminal board (simple wiring without screws)

7. realization of the network and the corresponding external port
- RS -485 (Modbus-RTU)
- on-board as standard options available
- Open Network DeviceNet, CC-Link, CompoNet, Profibus, EtherCAT USB (Mini-B
- connector), RS422 (RJ45 connector) is also standard equipped with

8. parameter setting / confirmation is simple user settings feature

■ Diagram

■ characteristics of Hitachi low-voltage inverter

1. trip faithful suppression
- overcurrent and overvoltage suppression by high starting torque and current control, with more than 0.5 Hz 200% driven by a strong reinforcement the operation function is realized.
※ full-load operation when multiple non-inverter protection IGBT module damaged even if the output short-circuit functions employed (Hitachi patented)

2. input signal enhancement
- analog (current / voltage) to increase output monitor (AM / AMI terminal) to an emergency resolution It was equipped with a blocking function.
- Do not leave the built-in CPU (software) on the intelligent input terminals on the middle inverter output only hardware circuitry can be blocked.

3. The program operation function
- to download the program to the inverter can be simplified sequence of operation and accelerator operation can be automatic, depending on load conditions can be simplified and the host device, a peripheral circuit.

4. The peripheral circuit built into inverter
- was EMC filter and built-in video core to the AC power input, and expanded the internal model of the regenerative braking circuit (BRD).
- WJ200: full capacity, SJ700: 22Kw or less, L700: 30Kw or less

5. Micro-surge voltage suppression function
- suppresses the motor terminal voltage control pwm by Hitachi's unique approach to the control pulse 2 times or less of the DC voltage.

6. Simple maintenance
- cooling fan, simple replacement of the smoothing capacitor and the maintenance can be simple wiring without a detachable screw terminal board even more easily.

7. Life diagnostics Jobs
- was adopted to realize the long-lived component design life of 10 years, temperatures, and cooling fan motor temperature rise by the lifetime diagnostics is life warning signals such as output.

8. The improvement in environmental performance
- within the substrate part of the varnish coating, plating the copper bar to the adoption of the standard has improved environmental resistance.

9. The global response 
- suited to the world standards (CE, UL, C-UL ) , and you can respond to an open network of DeviceNet, Profibus etc.