Varispeed G7 8676 views
In consideration of the different usage environments throughout the world, this inverter boasts high levels of both performance and operability, and stands ready to meet the most stringent technological demands. For the first time, 3-level control has been incorporated in 400-V class, general-purpose inverters to solve the problem of micro-surge voltages. It can be used in existing motors.
The first 400V class general-purpose inverter in the world to use the 3-level control method, to approach sine wave output voltage. It provides the solution to problems like motor insulation damage to surge voltage, and electrolytic corrosion of motor bearings due to shaft voltage. Existing general-purpose motors can be used even without surge suppression filters. The noise and leakage current are greatly reduced (halved in in-house comparison).
Suppresses surge voltage to the motor, eliminating the need for surge voltage protection for the motor.
Significantly reduces conduction (power supply) noise and radiated noise caused by inverter drives, minimizing effects on peripheral devices.
Provides low acoustic noise, difficult to achieve with conventional designs.
The energy-saving control approaches the maximum efficiency. High-efficient, energy-saving operations are achieved for any application either in vector control or V/f control.
All models of 18.5 kW or more come equipped with DC reactors to improve the power factor, and support 12-pulse input (Note).
All models are fully compliant with RS-422/485 (MEMOBUS/Modbus protocol) standards. The networks are available by using communications option cards. Now you can connect to hosts and PLC, implement centralized management of production equipment and reduce wiring easily.
The LCD panel digital operator that is included as standard equipment supports seven languages: Japanese (katakana), English, German, French, Italian, Spanish, and Portuguese.
Certification received: UL/cUL, CE marking, and KC marking
Meets a variety of world power supply
DC power supplies such as common converters are also available.
Our service networks cover U.S.A., Europe, China, South East Asia, and other parts of the world, and provide support for your business abroad.
High torque from 1/200 speed
(Dynamic auto-tuning, open loop vector control)
[speed control range 1:200 with PG 1:1000]
Torque Control (Torque limit set at 150%)
Quick response to reference changes
(Speed reference step response)
Handles sudden load fluctuations
(Speed recovery characteristics upon load surges)
Quick, shockless start
(Continued operation after momentary power loss)
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