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Motor drive control device, coupling control system, and motor drive control method

A technology of motor and power control, applied in motor control, control system, electrical components, etc., can solve problems such as difficult motors

Active Publication Date: 2021-09-28
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the operation of the motor differs depending on the length of the motor cable, and it is difficult to make the motor perform the desired operation.

Method used

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  • Motor drive control device, coupling control system, and motor drive control method
  • Motor drive control device, coupling control system, and motor drive control method
  • Motor drive control device, coupling control system, and motor drive control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0017] figure 1 It is a diagram showing the configuration of a control system including the motor drive control device according to the first embodiment. The control system 1 is a system that operates the motor 20 by a servo mechanism.

[0018] The control system 1 has a motor drive control device 10 , a motor 20 , an encoder 30 , a motor cable 41 , and an encoder cable 51 . In the control system 1, the motor drive control device 10, the motor 20, the encoder 30, the motor cable 41, and the encoder cable 51 are connected in series.

[0019] The motor cable 41 is a cable that connects the motor drive control device 10 and the motor 20 . The motor cable 41 transmits the drive power 31 output from the motor drive control device 10 to the motor 20 .

[0020] The encoder cable 51 is a cable that connects the motor drive control device 10 and the encoder 30 . Encoder cable 51 transmits a request signal output from motor drive control device 10 to encoder 30 , and transmits encod...

Embodiment approach 2

[0055] Next, use Figure 3 to Figure 5 Embodiment 2 of the present invention will be described. In Embodiment 2, a plurality of motor drive control devices calculate the delay time of transmission and reception based on a common reference time, and control the motors so as to eliminate the delay time.

[0056] image 3 It is a figure which shows the structure of the connection control system which has the motor drive control apparatus concerning Embodiment 2. The connection control system 2 is a system including control systems 1A and 1B and a mechanical connection unit 40 , and drives the mechanical connection unit 40 by linking the control systems 1A and 1B. The control system 1A is a system for operating the motor 20A by a servomechanism, and the control system 1B is a system for operating the motor 20B by a servomechanism.

[0057] The control system 1A has a motor drive control device 10A that is a first motor drive control device, a motor 20A that is a first motor, an...

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PUM

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Abstract

A motor drive control device (10) comprises a control unit (11) for supplying drive power (31) to a motor (20) and controlling the motor (20); an encoder communication unit (12) for communicating with an encoder (30); a cable length estimation unit (13) for estimating an encoder cable length (22) on the basis of the difference between a transmission time at which a request signal requesting encoder data (32) was transmitted to the encoder (30) and a reception time at which the encoder data (32) was received from the encoder (30); and a cable resistance estimation unit (14) for correcting, on the basis of the encoder cable length (22), a power control parameter that is used when controlling the supply of the drive power, wherein the control unit (11) uses the power control parameter to control the supply of the drive power (31).

Description

technical field [0001] The present invention relates to a motor drive control device, a connection control system, and a motor drive control method for controlling the drive of a motor. Background technique [0002] A motor drive control device such as a servo amplifier is a device that controls the drive of the motor based on information indicating the operation of the motor. Since the motor drive control device and the motor are connected by a motor cable, the longer the motor cable is, the more it affects the operation of the motor. Therefore, the operation of the motor differs depending on the length of the motor cable, and it is difficult to make the motor perform a desired operation. [0003] The position detection system described in Patent Document 1 corrects the position information, which is the information on the operating position of the motor, based on the information of the time when the position information is acquired, and eliminates the detection error of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P29/00
CPCH02P29/00
Inventor 稻妻一哉五十岚裕司
Owner MITSUBISHI ELECTRIC CORP