5-2 Applications
MN1917
5.2
Tool changer
In this demonstration a Mint program will be used to increase the speed of a typical tool changer application. This is
achieved by ensuring that the specified tool is always selected by rotating the tool carousel by the ‘shortest path’.
The tool positions are read from the presets table.
1. If you are not working through the manual in sequence, you must download your parameter file.
See section 4.2.1, steps 3. to 5. if you are not sure how to do this.
2. Download the preset table
Presets.pre
.
See section 4.3, steps 3. to 6. if you are not sure how to do this.
3. Open the file
Toolchanger.mnt
.
See section 4.2.2. if you are not sure how to do this.
4. On the toolbar, click the
Start
button.
5.2.1
Using the program
The program reads the digital inputs to determine which tool is required. In this demonstration, 8 different tools can
be selected by using a combination of input switches 0, 1 and 2, as shown in Table 2.
Tool
(Bit pattern sum)
Input switch 0
(Bit pattern value: 1)
Input switch 1
(Bit pattern value: 2)
Input switch 2
(Bit pattern value: 4)
0
Off
Off
Off
1
On
Off
Off
2
Off
On
Off
3
On
On
Off
4
Off
Off
On
5
On
Off
On
6
Off
On
On
7
On
On
On
Table 2 - Tool selection using digital inputs
1. Confirm input switch 7 is in the off (up) position.
2. Use a combination of input switches 0, 1 and 2 to select a tool. For example, to select tool 3 set input switches 0 and
1 to the on position.
It is important to understand that the
program
is now using the digital inputs. The input switches are not being used
to directly select a preset move, as they were in section 4.3.1.
3. Set input switch 7 to the on position to start the move.
The program compares the position of the current tool and the new tool, using information from the presets table.
From this, it calculates the shortest (and therefore quickest) way to rotate the tool carousel to select the new tool.
To move the new tool into position, the program performs a relative move.
The status of the program is shown in the Output window at the bottom of the Edit & Debug screen.
Summary of Contents for Flex+DriveII
Page 1: ...Flex DriveII Demonstration Unit SERVO DRIVE Operating Manual 03 02 MN1917...
Page 2: ......
Page 6: ...1 2 General Information MN1917...
Page 8: ...2 2 Introduction MN1917...
Page 22: ...4 8 Basic Demonstrations MN1917...
Page 34: ...6 2 Specifications MN1917...
Page 40: ...Index MN1917...
Page 41: ......