JP2006141136A - Drive control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drive control device capable of effectively investigating the cause of a fault, without increasing the consumption of memory. <P>SOLUTION: This drive control device has a motor drive circuit for driving the motor of equipment and a control unit sending a command to the motor drive circuit. The control unit 2 is provided with an alarm detection part 21 for detecting an alarm from collected equipment data, an alarm code generation part 22 for generating the code of the alarm, a storage part 26 for storing the code of the alarm and its related information, and an output part 27 for outputting the data of the storage part. The control unit has, on the latter step of the alarm code generation part, a relative information reference part 24 for referring to the relative information table wherein the alarm code and the relative information items are preliminarily set, and a relative information capturing part 25 for capturing the content of the referred relative information. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a drive control device that controls a motor, and more particularly to an alarm display.

As an example of a conventional drive control apparatus, there is one used in a system as shown in FIG. In the figure, 1 is a drive control device comprising a control unit 2 and a motor drive circuit 3, 4 is a device to be driven, 5 is a data collection unit for collecting data from the device 4, and 6 is a display unit for displaying an alarm. is there. Details of the control unit 2 are shown in FIG. 21 is an alarm detection unit, 22 is an alarm code generation unit, 23 is a clock, 26 is a storage unit for storing an alarm code generated by the alarm code generation unit 22, and 27 is an output unit for outputting the stored data. . Then, data from each device to be driven is collected, the occurrence of an alarm is detected, and the code or the like is stored in the storage unit 26. Data from the output unit may be displayed on the display unit.
Also, there is an apparatus that stores an alarm code and a certain type of control state quantity when an alarm is generated (see Patent Document 1).
Japanese Patent Laid-Open No. 5-304795

However, since it is difficult to investigate the cause by using only the generated alarm code, further information is required. However, since there are various types of alarms, the type of information required varies depending on the type of alarm that has occurred. When the control state quantity is stored as in Patent Document 1, effective information may not be obtained only with a certain type of control quantity information. Further, if all the information is stored, the memory consumption is increased.
The present invention has been made in view of such problems, and by switching the type of information to be written depending on the type of alarm that has occurred, drive control that can efficiently investigate the cause of a failure without increasing memory consumption An object is to provide an apparatus.

In order to solve the above problems, the present invention is configured as follows.
The invention according to claim 1 has a motor drive circuit that drives a motor of a device and a control unit that issues a command to the motor drive circuit, and the control unit detects an alarm from the collected device data. In a drive control device comprising: an alarm detection unit; an alarm code generation unit that generates the alarm code; a storage unit that stores the alarm code and related information; and an output unit that outputs data of the storage unit A related information reference unit that refers to a related information table in which the alarm code and related information items are set in advance, and a related information capturing unit that captures the contents of the referenced related information. It has.
According to a second aspect of the present invention, the integrated information is included in the related information.
According to a third aspect of the present invention, the control unit includes a transmission unit that transmits data in the storage unit to a communication unit or a memory card.

According to the first aspect of the present invention, the cause of the failure can be efficiently investigated using the data written in the memory.
According to the second aspect of the present invention, since the state of the failure occurrence can be understood in time series, the cause investigation efficiency of the failure is improved.
According to the third aspect of the present invention, data processing and data storage can be performed using another device such as a personal computer.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of Embodiment 1 of the present invention. In the figure, 24 is a related information reference unit, and 25 is a related information fetching unit. The other reference numerals are the same as in the prior art, so the description is omitted.
The related information reference unit 24 is a table in which related information to be written for the alarm type is set in advance. The related information capturing unit 25 captures related information referred to by the related information reference unit 24.
Next, the operation of this embodiment will be described.
When an alarm occurs, the alarm detection unit 21 detects the alarm, and the alarm code generation unit 22 generates an alarm code. An example of data at this time is shown in FIG. An alarm code is given together with the alarm name. Thereafter, based on the generated alarm code, the related information reference unit 24 refers to a table of codes and related information, and acquires related data items. An example of data at this time is shown in FIG. Next, the related information fetching unit 25 fetches data from the acquired items and writes it to the storage unit 26. For example, in the case of parameter setting abnormality, which parameter is strange, and in the case of encoder communication abnormality, abnormal communication data is related information. In addition, the accumulated operation time was added as related information.
This operation is shown in the write flow of FIG. Information to be written varies depending on the alarm type. As a result, the cause of the failure can be investigated efficiently, and an increase in the required size of the storage unit 26 can be suppressed.

FIG. 5 is a diagram illustrating the configuration of the second embodiment. In the figure, 28 is a communication means.
The alarm information stored in the storage unit 26 can be transmitted to other devices such as a personal computer via the communication means 28. This makes it possible to perform data analysis and data storage on a personal computer or the like.

  Since the present invention can improve the efficiency of information utilization and suppress the increase in memory consumption by selecting and recording necessary information for each alarm type, the same method can be applied to devices other than the drive control device.

The block diagram of the control part of the drive control apparatus which shows 1st Example of this invention. Data example of the alarm code generator in FIG. Data example of the alarm code / related information reference part in FIG. Writing flow diagram The block diagram of the control part of the drive control apparatus which shows 2nd Example of this invention. Block diagram showing a configuration example of a drive control device Block diagram showing a control unit of a conventional drive control device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drive control apparatus 2 Control part 3 Motor drive circuit 4 Device 5 Data collection part 6 Display part 21 Alarm display part 22 Alarm code generation part 23 Clock 24 Related information reference part 25 Related information taking part 26 Storage part 27 Output part 28 Communication means

Claims (3)

A motor drive circuit that drives a motor of the device; and a control unit that issues a command to the motor drive circuit, the control unit detecting an alarm from the collected device data; and the code of the alarm In a drive control device comprising: an alarm code generation unit that generates a storage unit; a storage unit that stores the alarm code and related information; and an output unit that outputs data of the storage unit.
A related information reference unit that refers to a related information table in which the alarm code and the item of related information are set in advance at the subsequent stage of the alarm code generation unit, and a related information capturing unit that captures the content of the referenced related information A drive control device comprising:   The drive control apparatus according to claim 1, wherein the related information includes an accumulated operation time.   The drive control apparatus according to claim 1, wherein the control unit includes a transmission unit that transmits data in the storage unit to a communication unit or a memory card.

Images