JPH0454886A - Servo device with built-in timepiece function - Google Patents

Abstract

PURPOSE:To protect motors securely by providing a timepiece means connected to a specified power source so as to count time always no matter whether a current is flowing in a device body or not, a current flow duration calculating means, a warning processing means, and an alarm storage means. CONSTITUTION:When power is turned on, a current flow duration calculating and processing device calculates the total current flow duration of a body by the data of a clock 100. Next, an alarm judging processing section judges whether every section of the device is in an operable state, in other words, whether any section is not outputting an alarm code. And when no alarm is outputted, a maintenance inspection judgment processing section judges whether or not there is any component having reached allowable current flow duration, on the basis of the total current flow duration and parameters of ROMs. Hereupon, if there is a component having reached the allowable current flow duration, maintenance inspection is required and a warning processing section warns and notifies its content through the medium of a specified displaying means. When maintenance inspection is unnecessary, other processing is executed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a servo device with a built-in clock function, and more specifically, to a servo device with a built-in clock function, and more specifically, a servo device with a maintenance function such as a prediction of the lifespan of consumables, an electronic thermal protection function, and an alarm diagnosis. This invention relates to a servo device with a built-in clock function that has improved functionality.

[Conventional technology]

For example, as a device that has a built-in clock function in a predetermined device and notifies maintenance/replacement of consumables, etc.,
There is a bearing grease remaining amount alarm device disclosed in Japanese Patent No. 720. As shown in the flowchart of FIG. 3, this device drives the electric motor (step 301) after initialization (step 301).
Step 302), determine when one hour has passed and step 30
3) Read the output of the temperature sensor and timer (step 304), and use a predetermined grease remaining amount formula to determine the remaining grease amount j! og L is calculated (Step 305), constant C is updated (Step 306), and then the remaining grease amount is 1.
og L is compared with a predetermined judgment value (0 in the flowchart), and if it is less than the judgment value, a notification means is output and the electric motor is stopped (steps 307 and 308).

FIG. 4 shows a perspective view of the operation panel portion of the heating device disclosed in Japanese Patent Application Laid-Open No. 63-75424.
01, a display tube 402, a plurality of output keys 403 for adjusting the high frequency output, and a timer 404 for setting the heating time.
and a counter check key 405 for adding a time counting function, which integrates the operation time and number of operations of electrical components, and further divides the operation time by the number of operations to calculate the operating time per operation. It is equipped with a calculation function so that service personnel can easily determine whether and when internal parts need to be replaced.

[Problem to be solved by the invention]

However, according to the devices shown in Japanese Patent Application Laid-open Nos. 62-224720 and 63-75424,
By calculating the number of times and time of use, it is possible to take preventive maintenance measures such as displaying a warning before a problem occurs. Since the configuration does not store the time of occurrence or the time of occurrence, the relationship with the passage of time (changes over time, etc.) is important for alarm diagnosis.

There was a problem in that it was not possible to make complex judgments, and troubles were dealt with on an ad hoc basis. Also,
When adding a function capable of monitoring alarm orders to the above-mentioned apparatus, there is a problem in that the cost increases even if the apparatus is constructed in a temporary manner.

Furthermore, as shown in the electronic thermal characteristics in Figure 5, electronic thermal monitors the motor load factor and issues an overload alarm when the current/time product exceeds a predetermined value. , it has an anti-time characteristic that the time for which the alarm occurs is shortened. However, in the conventional electronic thermal characteristic processing method, as shown in the flowchart of the electronic thermal protection function in FIG.
01), in the load factor counting process, data corresponding to the load current is counted based on the above-mentioned inverse time characteristic.Step 602), the count value reaches a predetermined alarm level, or in other words, the load factor is exceeded. If it exceeds the threshold value (Step 603), it is assumed that an alarm has occurred, and an alarm is displayed in the alarm process (Step 604). On the other hand, if the load factor has not exceeded, the process returns to step 602 and the determination as to whether the load factor has exceeded is repeated each time the data increases or decreases due to changes in the load current. 2. In this case, the electronic thermal data will be initialized. There is a problem in that it cannot be determined that the motor is at a high temperature due to the load current, and the motor cannot be reliably protected.

This invention was made to solve the above-mentioned problems, and it not only allows efficient maintenance and inspection of servo amplifiers, motors, etc., but also makes it possible to diagnose alarms in relation to the passage of time. The first objective is to obtain a servo device 9 with a built-in clock function that can be easily understood and complex measures taken.

A second object of the present invention is to provide a servo device with a built-in clock function that can reliably protect a motor even when the power is once turned off and then turned on again.

[Means to solve the problem]

The servo device with a built-in clock function according to the present invention includes a clock means connected to a predetermined power source, a battery, a fan, etc. so as to always count the time regardless of whether or not current is supplied to the opening main body. parameter storage means for storing the allowable energization time of parts that require periodic maintenance and inspection as parameters; energization time calculation means for calculating the total energization time of the device body; , a warning processing means that determines whether or not there are any parts that have reached the permissible energization time, and if there are any corresponding parts, issues a warning and notification of its contents via a predetermined display means, and a warning processing means that determines whether or not there is a part that has reached the allowable energization time; If the alarm occurs, the device is equipped with an alarm storage means for storing the alarm code, alarm occurrence date and time, etc.

In addition to the above-described configuration, the servo device with a built-in clock function according to the present invention further includes a load factor storage means for storing load factor data of the electronic thermal function when the device main body is powered off.
When the power is turned on, the alarm storage means is referred to, and if an overload alarm is stored, the non-energization time is calculated based on the alarm occurrence date and time and the time of the clock means, and the power supply stored in the load factor storage means is calculated. It is provided with a load factor calculation means for correcting the load factor data at the time of OFF based on the non-energized time to obtain the current load factor data.

[Effect]

The servo device with a built-in clock function of the present invention can know the actual energized time and the non-energized time by the clock means that can count whether the current is energized or not.
The alarm code, alarm occurrence date and time, etc. can be known by the alarm storage means. Also, turn off the power on
Even if it is turned on again after
Refers to the alarm storage means, calculates the non-energizing time based on the alarm occurrence date and time and the time of the clock means, and turns off the power.
The motor is protected by correcting the current load factor data using the non-energizing time to obtain the current load factor data.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a servo device with a built-in clock function according to the present invention will be described in detail below with reference to the drawings.

The servo device with a built-in clock function of this embodiment has a battery-backed clock 100 (
(shown in Figure 1(b)), and a ROM (not shown) that stores parameters for the allowable energization time of parts that require periodic maintenance and inspection, such as batteries and fans, and a device. It is equipped with an E'RAM that stores an alarm code and alarm occurrence date and time when an abnormality occurs in the main body, as well as load factor data of the electronic thermal function.

Furthermore, in this embodiment, a predetermined control unit (not shown) executes the following processes (1) to (4).

■Electrification time calculation process that calculates the total energization time of the device body ■Maintenance inspection judgment process that determines whether there are any parts that have reached the allowable energization time based on the total energization time and parameters ■If the allowable energization time has been reached Warning processing that issues a warning and notification of its contents via a predetermined display means when a part is present; Alarm storage processing that stores the alarm code, alarm occurrence date and time, etc. in E" RAM when an abnormality occurs in the device body; Load factor data storage process that stores the load factor data of the electronic thermal function in E" RAM when the device is powered off ■ Non-energized time calculation process that calculates the non-energized time based on the alarm occurrence date and time and the time of the clock 100 when the power is turned on ■E” Correcting process for load factor data to obtain current load factor data by correcting the load factor data when the power is OFF, which is stored in the RAM, using the power-off time. Figures 1 (a) and 2 show A flowchart is shown in which the above processes ■ to ■ are related, and as shown in FIG. 1(a), when the power is turned on, the energization time calculation processing device calculates the total energization time of the main body based on the data of the clock 100. (Step 101).Next, in the alarm determination process, it is determined whether each part of the device is in an operable state, in other words, whether an alarm code is output from any part.Step 102) If there is no alarm, In the maintenance/inspection determination process, it is determined whether or not there is a component that has reached the allowable energization time based on the total energization time obtained in step 101 and the ROM parameter (allowable energization time of the component). Step 103).

Here, if there is a component that has reached the allowable energization time, maintenance and inspection are necessary, so a warning process is performed to notify the warning and its contents via a predetermined display means (step 104). If maintenance and inspection are not required, other processing (
(details are omitted)) is executed (step 105), and the process returns to step 101.

On the other hand, if there is an alarm, the operation of the main body of the device is stopped (Step 106), an alarm is displayed (Step 107), and in the alarm storage process, the alarm code, date and time of alarm occurrence, etc. are stored in the E! Store in RAM (step 108).

Therefore, for example, when troubleshooting when an alarm occurs due to a circuit malfunction, E" RAM
By looking at the contents, you can quickly determine whether multiple malfunctions (alarms) occurred at the same time, or whether an alarm occurred at a specific time and was caused by a specific external factor, and can be easily repaired. It has the advantage of being workable.

In addition, in the servo device with a built-in clock function of this embodiment, as shown in the flowchart of the electronic thermal protection function in FIG.

■ By using load factor data correction processing and ■ load factor data storage processing, the load factor can be calculated using load factor data that is accurate and in accordance with the actual situation, without being affected by 0FF of the power supply (i.e., non-energizing time). It is possible to judge whether the game is over or not.

First, after the power is turned on, a non-energizing time is calculated based on the alarm generation date and time and the time of the clock 100 by a non-energizing time calculation process (step 201).

Next, by correcting the load factor data, E! The current load factor data is obtained by correcting the load factor data when the power is OFF, which is stored in the RAM, by the power-off time (step 2).
02). Next, in the load factor counting process, data corresponding to the load current is counted based on the above-mentioned inverse time characteristic (step 203), and whether the count value has reached a predetermined alarm level, or in other words, the load factor is Step 604) to determine whether the load rate has exceeded the limit. If the load rate has exceeded the limit, it is assumed that an alarm has been generated. Step 205). The rate data is stored in the E" RAM (step 207), and the process ends. Depending on the setting of the alarm code at this time, the alarm judgment process (step 102 in FIG. 1(a)) to the alarm storage process described above is performed. (Step 108) is executed, and the alarm code and alarm occurrence date and time when the load rate is exceeded are E”
Stored in RAM. On the other hand, if it is not over, it is determined whether the power is turned off (step 206),
If the power is OFF, the process proceeds to step 207, where the load factor data at the time the power is OFF is stored in the E'RAM, and the process ends.

Further, if the power is not OFF, the process returns to step 203, and the determination as to whether the above-mentioned load factor has exceeded is repeated every time the data increases or decreases due to a change in the load current.

As mentioned above, in this embodiment, since the power supply time of the main body of the device and the interval and time of alarm generation are known, it is possible to not only know when to perform maintenance and inspection, but also to check the reliability and judge the lifespan. This allows you to take appropriate action before the equipment goes down.

In addition, even if the power is turned off and then turned on again, the temperature of the motor and main circuit components can be checked to see how much the temperature of the motor and main circuit components has cooled during that time.
This can be determined by correcting the load factor data, so
Load factor data can be handled as data corresponding to the actual temperature, making it possible to avoid burnout of parts and motors.Furthermore, since the cooling effect of non-energized time can be reflected in the electronic thermal, accurate Protection becomes possible, and there is no need to provide a lot of margin for safety.

〔Effect of the invention〕

As explained above, the servo device with a built-in clock function of the present invention has a clock means connected to a predetermined power source so as to always count the time regardless of whether or not current is supplied to the main body of the device. , parameter storage means for storing as a parameter the allowable energization time of parts that require regular maintenance and inspection, such as batteries, fans, etc., energization time calculation means for calculating the total energization time of the device body, and total energization time. and a warning processing means that determines whether or not there is a part whose permissible energization time has been reached based on the information and the parameters, and if there is a corresponding part, issues a warning and notification of its contents via a predetermined display means, and a device. If an abnormality occurs in the main unit,
Equipped with an alarm storage means that stores alarm codes, alarm occurrence dates and times, etc., it is possible to efficiently perform maintenance and inspection of servo amplifiers, motors, etc., and to understand the relationship with the passage of time when diagnosing alarms. Comprehensive measures can be taken easily.

In addition to the above-mentioned configuration, there is a load factor storage means for storing load factor data of the electronic thermal function when the power of the main body of the device is turned off, and an overload alarm is stored by referring to the alarm storage means when the power is turned on. The non-energized time is calculated based on the alarm occurrence date and time and the time of the clock means, and the load factor data at the time of power OFF stored in the load factor storage means is corrected by the non-energized time to obtain the current load factor data. Since the motor is equipped with a load factor calculation means that calculates the

[Brief explanation of drawings]

FIG. 1(a) is a flowchart according to an embodiment of the present invention, FIG. 1(b) is an explanatory diagram showing a battery-backed watch, FIG. 2 is a flowchart of the electronic thermal protection function of the present invention, and FIG. 4 is a flowchart for explaining the conventional method, FIG. 5 is an explanatory diagram showing the anti-time characteristic of electronic thermal, and FIG. 6 is a flowchart of the conventional electronic thermal protection function. In the drawings, 100-...Clock 101--One energization time calculation process 102-m--
−・Alarm judgment processing Maintenance inspection judgment processing・Warning processing Other processing Operation stop alarm display・Alarm storage processing No-power time calculation processing・・−Load factor data correction processing・−Load factor count processing・・−Load factor Data storage processing 104, 105--, 107--, 108-, 201-, and the like. In the figures, the same reference numerals indicate the same or equivalent parts.

Claims (2)

[Claims] (1) A clock means connected to a specified power source so as to always count the time regardless of whether current is being applied to the main body of the device, and periodic maintenance and inspection of the battery, fan, etc. parameter storage means for storing the allowable energization time of the component as a parameter; energization time calculation means for calculating the total energization time of the device body; Warning processing means that determines whether or not there are any parts that have been detected and, if there are any relevant parts, issues a warning and notification of its contents via a predetermined display means; A servo device with a built-in clock function, comprising an alarm storage means for storing alarm occurrence date and time. (2) In claim 1, there is provided a load factor storage means for storing load factor data of the electronic thermal function when the power of the apparatus body is turned off, and an overload alarm is stored by referring to the alarm storage means when the power is turned on. If so, calculate the non-energized time based on the alarm occurrence date and time and the time of the clock means, and further correct the load factor data at the time of power OFF stored in the load factor storage means by the non-energized time. 1. A servo device with a built-in clock function, comprising: load factor calculation means for determining current load factor data.