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Servomotor drive device that drives servomotor connected to rotating shaft

一种伺服电动机、驱动装置的技术，应用在交流电动机的减速装置、控制机电传动装置、四象限中的电动机控制等方向，能够解决不能产业用机器人追加电源再生功能等问题

Active Publication Date: 2013-05-08
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is not possible to add a power regeneration function in accordance with the operating conditions of an industrial robot to a conventional servo motor drive device having both a resistance regeneration function and a power regeneration function.

Method used

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  • Servomotor drive device that drives servomotor connected to rotating shaft
  • Servomotor drive device that drives servomotor connected to rotating shaft
  • Servomotor drive device that drives servomotor connected to rotating shaft

Examples

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Embodiment Construction

[0024] Embodiments of the servo motor drive device of the present invention will be described with reference to the drawings. In addition, in the drawings, the same symbols are assigned to the same structural elements.

[0025] With reference to the accompanying drawings, figure 1 It is a block diagram of a system including a servo motor drive device according to the first embodiment of the present invention. figure 1 The system shown has a three-phase AC power supply 1, a servo motor driving device 2, an industrial robot 3, and an inverter as a second inverter for driving a servo motor connected to a rotating shaft of a movable part of an industrial robot. 4, and host control device 5.

[0026] In the present embodiment, the servo motor drive device 2 is constituted by one servo motor drive unit 200a. The servo motor drive unit 200a has an inverter 201a as a first inverter, a regenerative resistor circuit 202a, connectors 203a, 204a constituting a first connection portion ...

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PUM

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Abstract

A servomotor drive device has a first converter, a regenerative resistor circuit having a first switching element and a regenerative resistor, a first connection part configured to connect a second converter in parallel to the regenerative resistor circuit in an attachable and detachable manner, and a first control unit configured to control the on and off states of the first switching element. The second converter has a second switching unit and a second control unit configured to return regenerative energy to an AC power source side by bringing the second switching element into the on state when the second converter is connected to the first connection part.

Description

technical field [0001] The present invention relates to a servo motor drive device capable of adding power regeneration for regenerating regenerative energy generated when a servo motor connected to a rotary shaft of a movable part of an industrial robot is decelerated and driven to an AC power supply side in accordance with operating conditions of an industrial robot. Function. Background technique [0002] In the past, in order to deal with the regenerative energy generated during the deceleration drive of the servo motor, a servo motor drive device with a resistance regeneration function that consumes the regenerative energy through a regenerative resistor, and a servo motor drive device with a power regeneration function that regenerates the regenerative energy to the AC power supply side . [0003] A servo motor drive device with a resistance regeneration function has an inverter and a regenerative resistor circuit. a diode, and the regenerative resistor circuit has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P5/74B25J13/06H02P3/18H02P21/36H02P27/06
CPCH02M7/72H02P3/18H02P3/22H02P23/06H02M1/32
Inventor 铃木直行松本康之
Owner FANUC LTD
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