Use LSI's FLASH Sorting Package together with the capabilities available in the Pro Spring, Pro Material and Pro Ultimate software packages to achieve fast, positive sorting with a FLASH 11 or FLASH 24 machine while it tests springs.
This page describes the items displayed on the "Sorting" screen and their use with a few practical application examples for setting up a condition and output table for sorting.
When test points are programmed with conditions by entering Nominal and Tolerance values during programming, the results can be used to sort parts into categories. The FLASH tester can also send electronic signals to other machines for sorting purposes, such as sorting chutes or PLC controllers. This is an example of a screen completed under the Sorting menu selected from Program Mode:
On the left side of the display is a Condition and Output Table that is used to enter conditions for sorting parts and defining the resulting output. The table is navigated starting from the first row and continuing until a true condition is met or to the end of the table. The current row being defined is highlighted in blue. To edit a row, just touch the row to change.
Setting Up a Condition and Output Table
The basic condition and output statement requires two rows: one for the condition and one for the output.
Row 1: If Tp 1 is Satisfactory
Row 2: Then Open Flap 1
Row 3: End of Table
Touch Row 1 on the table to start. Select test point (Tp) number 1 of the sequence using the value dialog box below Check Test Point. Touch the condition “Satisfactory” to attach to the Tp. Touch [Accept Changes for Row 1]. Touch Row 2 on the table to highlight. Touch “Flap 1” under Open Flap. Touch [Accept Changes for Row 2]. As rows are used, End of Table moves to the next row.
Example # 2:
A logical “or” statement can be created by testing each condition as a basic condition and output statement or pair. For example, if the “or” statement is: If Test Point 1 is Bad High or If Test Point 2 is Bad High, Then Open Flap 2. The table should look like this:
Row 1: If Tp1 is Bad High
Row 2: Then Open Flap 2
Row 3: If Tp2 is Bad High
Row 4: Then Open Flap 2
Row 5: End of Table
A logical “and” statement can be created by testing multiple conditions before setting an output line. For example, if the “and” statement is: If Test Point 1 is Satisfactory and Test Point 2 is Satisfactory, Then Open Flap 1.
Row 1: If Tp 1 is Satisfactory
Row 2: If Tp 2 is Satisfactory
Row 3: Then open Flap 1
Row 4: End of Table
The Check Test Point section of the display allows the user to define a condition for each test point. Initially, the value dialog box will be empty. To select and work with a test point, touch the value dialog box. Touch the number of the desired test point on the keypad and enter. Once a test point is selected, choose from the six possible conditions listed. Touch the condition for the test point displayed. The entry of the condition is controlled by the Accept Changes for Row X button on the right side of the display.
As a condition is chosen, the box above this button displays the condition selected. To confirm the selection, touch [Accept Changes for Row X]. The condition selected for that test point is now displayed in the row highlighted on the Condition and Output Table.
The Open Flap section of the display allows the selection of an output flap for a test point condition. Touch a flap selection from those listed to represent the category of a condition for sorting. An electronic signal is sent to a sorting device for the flap selected. As an output is selected for a test point condition, the box above the Accept Changes for Row X button reflects the output selected. To confirm the selection, touch [Accept Changes for Row X]. The output is displayed in the current row of the Condition and Output Table.
This section of the display contains three options to be set for sorting purposes:
If the sorting table is traversed during a test point sequence and no true statement is found, a flap may be set to activate as a default mechanism. The Default Flap setting is Flap 0, resulting in no flaps being activated. Otherwise, touch the value dialog box to enter a preferred default flap selection.
Sweep / EOT Time (s)
After the last output signal is sent during an individual test sequence on a specific part and the sorting flap is determined, the upper platform moves to its ending position generating a signal that represents the End of Test (EOT). The EOT signal can be connected to a device that will automatically push or “Sweep”, the part off the load cell / testing area (if applicable). Touch the value dialog box to enter the desired length of the EOT signal in seconds. The default setting is 1.00 second.
Flap Open Time
Control the amount of time an output signal is on using the options in this section. There are four settings to choose from:
Select to set the sorting signal to be generated for a fixed amount of time. This controls the length of time that an activated flap is open. Timed is the default setting at 1.00 second. Touch the value dialog box to enter a different amount of time in seconds if desired.
Select to prevent sorting signals from being generated. The sorting condition result will still be displayed. This setting is useful for hand sorting.
Open ‘til Next
This setting keeps the last output signal on until the next output condition is determined. Exercise caution when using this selection as some devices may be damaged if the signal is on too long.
Open ‘til Start
This setting keeps the last output signal on until the next test starts. Exercise caution when using this selection as some devices may be damaged if the signal is on too long.