JPH04321110A - Positioning operating method - Google Patents

Abstract

PURPOSE:To simplify the program of a host device in a continuous or repetitive operation mode and to reduce the burden of the host device by designating previously a starting data number and a specific data number. CONSTITUTION:The positioning data stored previously in a positioning device 2 are selected with the data number designated by a host device 1. A servo motor 3 is driven based on the selected data and a positioning operation is carried out. That is, the presence or absence of a starting signal is decided and the positioning operation is carried out based on a prescribed data number (start data number) as long as the starting signal has a specific number. Then the data number is increased. Meanwhile a positioning operation is carried out as conventional if the starting signal has no specific number. Therefore the operations are carried out in response to the starting data number and with this number updated successively or the operations are repetitively carried out in the order of numbers including the starting data number through the data number designating the cycle end after both the specific data number and the starting data number are designated. Thus the burden of the device 1 is reduced.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning operation method for driving a servo motor to position a positioning object at a predetermined position.

0002

2. Description of the Related Art FIG. 8 is a schematic diagram showing a general example of a servo system, in which 1 is a host device, 2 is a positioning device, and 3 is a servo motor. That is, when the positioning device 2 is given a data number from the host device 1, it reads out the data previously stored therein, and automatically operates the servo motor 3 based on the read data. For this reason, data for positioning as shown in FIG. 9 is stored inside the positioning device 2. As the data, an example is shown here in which target stop position and feed speed data are stored, and operation will be performed according to this data.

[0003] Conventionally, when such a system performs automatic operation, it is usual to do so by giving a data number each time from a host device. A time chart in the case of FIG. 10 is shown. In Figure 10, data number 5 is specified at first as shown in (b), started by the start signal in (c), and the operation corresponding to number 5 is performed as shown in (a), and then number 6 is specified. drive according to that number,
Finally, an example is shown where number 7 is designated and the operation corresponding to that number is performed.

0004

[Problem to be Solved by the Invention] Conventionally, data numbers are given from the host device each time the machine is operated, so when trying to perform continuous or repeated operations, the program of the host device becomes complicated. There is a problem that this increases the burden. Therefore, an object of the present invention is to simplify the programming of a host device in continuous or repeated operations, and to reduce its burden.

[0005]

[Means for Solving the Problems] In order to solve such problems, in the first invention, positioning data stored in advance in a positioning device is selected from a host device by specifying a data number, When performing positioning operation by driving the servo motor based on the selected data, by specifying the start data number and specific data number in advance, the numbers will be updated sequentially from the start data number every time a start signal is received. The feature is that it enables operation based on the data number. Further, in the second invention, data for positioning stored in advance in the positioning device is selected by designating a data number from a host device, and a servo motor is driven based on the selected data to perform positioning operation. In this process, the presence or absence of a cycle end is assigned to the stored data, and by specifying a start data number and a specific data number, from then on, every time a start signal is received, the cycle end specified data number is changed from the start data number. The feature is that the operations up to 1 are repeated in numerical order.

[0006]

[Operation] By instructing a specific data number and a start data number, you can start the operation corresponding to the start data number and sequentially update the data number (continuous operation), or from the start data number to the data number specified at the end of the cycle. Driving (
(repetitive operation) can be performed repeatedly in numerical order, thereby reducing the burden on host equipment.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a flowchart showing an embodiment of the present invention. First, in step S1, it is determined whether or not there is an activation signal, and if the activation signal is present (Y), it is determined in step S2 whether or not it is a specific number. Although the specific number is set to "00" here, it may be any other appropriate number. As a result, if it is a specific number, a positioning operation based on a predetermined data number (start data number) is executed in step S3, and then the data number is incremented in step S4. If the judgment result in step S2 is not a specific number,
A positioning operation similar to the conventional one is performed (step S5). That is, by adding a data number increment function to the positioning device side, continuous operation is possible. Note that after the data number is incremented in step S4, the process returns to step S1 to again determine the presence or absence of the activation signal, and then in step S2, the data number is set to ``0''.
The determination here is whether the instruction from the host device is "00" or not, and has nothing to do with the number incremented by the positioning device.
The determination result in step S2 after the second time is "Y".

FIG. 2 shows the above operation in a time chart.
become that way. That is, the figure (a) shows the mode operation (operation pattern) based on the data number, the figure (b) shows the data number, and the figure (c) shows the start signal, respectively.
By setting the data number to "00", this example is characterized in that continuous operation based on data numbers "5" and onwards is realized. FIG. 3 is a schematic diagram showing a system configuration to which the present invention is applied. This is basically the same as shown in FIG. 8, except that it shows how the data number and start signal are given to the positioning device 2 from the host device 1.

FIG. 4 is a flowchart showing another embodiment of the present invention. This is the step S1→S2→S3,
The operations of steps S1 → S2 → S7 are the same as those shown in FIG. The data number is incremented in step S6, and if the cycle end is specified, the start data number is set in step S6.
It is different from what is shown in . By doing so, it becomes possible to repeatedly perform the operation from the start data number to the data number for which the cycle end is specified (repetitive operation). In order to realize such a repetitive operation, the positioning data memory is provided with data indicating whether or not the cycle has ended, in addition to the target stop position and feed amount data, as shown in FIG. 5, for example.

FIG. 6 shows the operation of FIG. 4 in the form of a time chart. In other words, the figure (a) shows the mode operation (operation pattern) based on the data number, the figure (b) shows the data number, the figure (c) shows the cycle end data, and the figure (d) shows the data number.
indicates the activation signal, and the data number is "00".
” and specifying the cycle end for data number “3”, here data numbers “1” to “3”
It is characterized by the fact that it realizes repeated motions based on "." FIG. 7 is a schematic diagram showing a system configuration to which the invention of FIG. 4 is applied, except that the cycle end signal is sent from the positioning device side to the host device side.
This is the same as FIG. 3 or FIG. Note that in the above description, the continuous operation or repeated operation is executed by specifying the data number "00", but the present invention is not limited to this, and it goes without saying that other appropriate signals can be used.

[0011]

[Effects of the Invention] According to the present invention, continuous or repeated operation can be performed by specifying a start data number and a specific data number, so the burden on the host device is significantly reduced and its design is facilitated. You will have the advantage of becoming

[Brief explanation of drawings]

FIG. 1 is a flowchart showing an embodiment of the invention.

FIG. 2 is a time chart corresponding to FIG. 1;

FIG. 3 is a schematic diagram showing a servo system to which the present invention is applied.

FIG. 4 is a flowchart showing another embodiment of the invention.

FIG. 5 is an explanatory diagram for explaining the contents of a memory when a repetitive operation is realized.

FIG. 6 is a time chart corresponding to FIG. 4;

FIG. 7 is a schematic diagram showing a servo system to which the invention of FIG. 4 is applied.

FIG. 8 is a schematic diagram showing a general example of a servo system.

FIG. 9 is an explanatory diagram for explaining internal data of the positioning device.

FIG. 10 is a time chart for explaining the operation of FIG. 8;

[Explanation of symbols]

1. Upper device 2 Positioning device 3 Servo motor

Claims (2)

[Claims] [Claim 1] When data for positioning stored in advance in a positioning device is selected by specifying a data number from a host device, and a servo motor is driven based on the selected data to perform a positioning operation, Positioning characterized in that by specifying a start data number and a specific data number, the numbers are sequentially updated from the start data number every time a start signal is received thereafter, making it possible to operate based on the data number. how to drive. 2. In selecting data for positioning stored in advance in the positioning device by designating a data number from a host device, and driving a servo motor based on the selected data to perform positioning operation, By assigning the presence or absence of a cycle end to the stored data and specifying the start data number and specific data number,
Thereafter, the positioning operation method is characterized in that the operation from the start data number to the data number designated as the cycle end is repeated in numerical order every time a start signal is received.