Mitsubishi Denki Kabushiki Kaisha

Yasuhiro Shiraishi

Hisao Sakurai

Toshiyuki Kaitani

Akira Imanaka

Kazuya Ohmura

Tetuaki Nagano

An object of this invention is to obtain a control apparatus capable of easily and speedily setting an output frequency, and it is constructed so as to change a change width of a frequency setting value in response to a rotational speed of a handle operation by an operator using a manual pulse generator for manually rotating a handle to generate a command pulse.

Control apparatus

A power-saving effect displaying unit includes a power-consumption computing unit that calculates power consumption based on a voltage obtained by an output-voltage computing unit and a current obtained by a current detecting unit. A power-saving-effect generating unit acquires a power-saving effect based on the power consumption. A display displays an instantaneous power-saving effect and an integration value of the power-saving effect under operation with the inverter, with respect to commercial operation, based on the instantaneous power consumption under the operation with the inverter calculated by the power-consumption computing unit, and on electric characteristic data obtained by comparing with the power consumption under the commercial operation.

Power-saving effect display device in an inverter device

This invention is to provide a variable speed apparatus capable of equalizing a moving distance at the time of deceleration from deceleration start to deceleration completion in the case that a deceleration stop command is inputted during acceleration to a moving distance at the time of deceleration from deceleration start to deceleration completion in the case that a deceleration stop command is inputted during operation at an adjustable speed reference frequency even when the deceleration stop command is inputted during acceleration.

Growing community of inventors

Tokyo, Japan

Yasuhiro Shiraishi