JPH0365707A - Alarm canceling method for nc device - Google Patents

Abstract

PURPOSE:To lighten the burden of an operator, and to deal simply, promptly and surely with various kinds of alarms by providing an NC device with a conductive message for canceling the alarm and sequence to conduct alarm cancellation while detecting the manipulation of the operator following this message. CONSTITUTION:An image table 3 is connected to an operation control part 7, and is connected to a CRT control part 9 through an alarm table 8. The conductive message for alarm cancellation corresponding to an alarm number and the sequence for alarm cancellation are stored previously in the alarm table 8. The operation control part 7 samples a status signal in a DPR 6, a PC 2 and the NC device at a definite period, and when it finds abnormality in those, it executes alarm processing correspondingly to its contents. Besides, the CRT control part 9 displays the alarm number and simple comment related to the alarm on a CRT 11, and informs the operator of them. At that time, when the operator designates the alarm number he wants to cancel by cursor operation and pushes the input key of a control panel, guidance required for the procedure of the cancellation is displayed on the CRT 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] <Industrial Application Field> The present invention relates to an NC device/norm cancellation Ij method useful for use in various NC devices.

(Prior Art) In a machine tool equipped with a CNC device, various alarms (abnormalities) occur during operation depending on the situation.

The operator must perform the necessary operations to release this alarm, but if the operator does not know how to release the alarm, the operator has no choice but to read the manual or call a service person, and the machining must be interrupted in the meantime. There was a point.

On the other hand, as CNC equipment becomes more sophisticated, the number of alarms increases, but the knowledge level of operators tends to decline, and it is necessary to consider how to clear alarms in line with demands for simplified operation and introduction of AI. It had become.

(Problems to be Solved by the Invention) As described above, in recent years, it has become necessary to consider canceling alarms in response to demands for simplified operations and introduction of AI.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an alarm cancellation method that can reduce the burden on the operator and easily, quickly, and reliably deal with various alarms.

[Configuration 1 of the Invention (Means for Solving the FA Problem) The alarm canceling method of the present invention that solves the above problem is
It determines the alarm state from the device status signal and temporarily stops or emergency stops, and in response to the specified alarm number (searches the countermeasure table, displays sequential countermeasures for the retrieved countermeasures, and displays the countermeasure details as described above). It is characterized by instructing the next countermeasure while determining the operating status of various sensors connected to the NC device, and canceling the alarm by sequentially carrying out the commands 'JS 71'.

(Function) In the present invention, the NC device is provided with a guidance function for canceling the alarm, thereby instructing the operator to cancel the alarm and guiding the operator to cancel the alarm.

That is, the NC device is provided with a guidance message for canceling the alarm and a sequence that guides the alarm to cancel while detecting the operator's operation according to this message.
It is now possible to cancel the alarm simply by performing the specified operation.

(Example) The present invention will be explained in detail below.

FIG. 2 is a block diagram showing the configuration of an NC device that can implement the present invention.

Machine (10) 1 has programmer controller (PC) 2
are connected, and digital signals (Di, Do) are output.

An image table 3 is connected to the PC 2, and the signals Di, [)o, the signals of the NC device itself, and the operating state of the servo motor are managed. Therefore, the image table 3 stores the signal state of the positioning module 5 that drives the servo motor 4 in the bidirectional RAM (DP
R) 6.

On the other hand, the image table 3 is connected to the operation management section 7, and the operation management section 7 is connected to the operation management section 7 via the alarm table 8.
It is connected to RT 1lill 11 section 9.

The alarm table 8 stores alarm cancellation guidance messages corresponding to alarm numbers and alarm cancellation sequences hi K<.

The CRT I control unit 9 includes a keyboard and a CRT.

It is also connected to the image table 3.

In the NC device with the above configuration, the operation management section 7
6, the PC 2, and the status signals inside the NG are sampled for a certain period of time, and if an abnormality is found therein, alarm processing (-time processing or emergency stop) is performed depending on the content. In addition, CRT l1lJ 111 part 9,
As shown in FIG. 3, the alarm number and a simple comment regarding the alarm are displayed on the OR+-11 and notified to the operator. At this time, when the operator specifies the alarm number to be canceled by operating the cursor and presses the input key on the operation panel, guidance necessary for the number of cancellations is displayed on the CRT 11 as shown in FIG.

Figure 3 shows the alarm contents for emergency stop due to Y-axis overtravel (01) when tI<l/C. OR+'11 also shows a front view and a plan view of the machine to show the alarm location. Note that the figure shows an example of a laser and punching compound processing machine.

On the guidance screen for alarm cancellation shown in FIG. 4, the alarm cancellation procedure is shown as follows.

1. Set the mode selection switch to “;

2. Press and hold the 0T release button to release.

3.NCIII! When the readiness is turned ON, press the axis selection “=Y” together with the 01゛ release button to move the axis.

4. Release the 0T release button and press
a If Completion is ON, press the "Reset" button.

5. When the alarm display disappears, return to the origin.

By taking these steps, the OT release alarm can be canceled, but in this example, rather than simply displaying this guidance, we will monitor the sequential execution and
- Confirm that the process procedure has been completed completely before proceeding to the next procedure.

This procedure is shown in the flowchart of FIG.

That is, when the alarm is confirmed in step 101,
A number is selected in step 102, and guidance is displayed in step 103, but in step 104, the signal of the image table is detected, and after confirming that the operation is completely executed, the process moves to the next step 105 and 106. .

The operator repeats 0 in sequence according to the operation order on the above screen.<g
・). OR1 control, 1ri9 G,! High eyes (・l<shi,;
,,j,:・]<shi, Instruct the operation to be performed, check the bit change in image table 3 to confirm that the instructed operation has been carried out, and then display it in reverse video. Instructs the next operation by moving to the next number. The above operation is repeated until the alarm is finally released.

Although the above embodiment deals with OT release, it is clear that various alarms can be dealt with.

The present invention is based on the above-mentioned actual IJ! ! Not limited to examples,
It can be carried out on various machines in an appropriate manner.

[Effect of the Invention 1 As described above, the present invention is an alarm canceling method as described in the claims, so that the burden on the operator can be reduced and various alarms can be dealt with easily, quickly, and reliably.

[Brief explanation of drawings]

Figure 1 is a flowchart showing the alarm release method, Figure 2
FIG. 3 is a block diagram showing a configuration example of an NC device implementing the present invention, FIG. 3 is an explanatory diagram of a screen showing alarm contents, and FIG. 4 is an explanatory diagram of an alarm cancellation screen. 3... Image table 7... Operation management section 8... Alarm table 9... CRT control section 11... CRT

Claims (1)

[Claims] It determines the alarm condition from the NC device's status signal and performs a temporary or emergency stop. It also searches the countermeasure table according to the specified alarm number, displays sequential countermeasures for the searched countermeasures, and displays the countermeasure details. A method for canceling an alarm in an NC device, characterized in that the alarm is canceled by instructing the next countermeasure while determining the operating state of various sensors connected to the NC device, and causing all countermeasures to be carried out sequentially.