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User’s Manual Line Computer UNIX 11 Production Tools / Optimization Software Version 402.xx Edition 06/96 11.4 Optimizati on Dialog 11 - 29 11.4.3.3 Changing Job P arameters If neither the de fault values nor the standa …

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11 Production Tools / Optimization User’s Manual Line Computer UNIX
11.4 Optimization Dialog Software Version 402.xx Edition 06/96
11 - 28
Parameter settings:
●
Clustering according to the Mean value method.
●
Maximum number (feeders) if dominant: 2.
●
Number of iteration steps: 5.
Lot file setting:
●
The lot size is to be set to a realistic value.
●
Enter a fixed setup, if desired.
Effect:
In a medium amount of time a setup or a setup family is calculated having the following features:
●
Changeover time is taken into account depending on the lot size.
●
Changeover operations are limited to the changeover trolleys (where configured).
●
Production time is optimized. A compromise between production time and changeover time is
reached.
Example 3: Inflexible production
Setup problem:
In the case of inflexible production, only one setup is used for production over a long period of time.
Objective:
One single setup is to be calculated whereby the products should be utilized to 100% capacity, if possible.
Parameter settings:
●
Clustering is not important as only one setup is to be calculated.
●
Maximum number (feeders) if dominant: 0. (Set-Up Optimization is to decide on its own how often the
components are to be set up.)
●
Program run time per lot: e.g. 43200 sec (= 12 hours). The computation may be carried out over night
and will then be available the next morning by the start of the first shift.
Lot file setting:
●
The lot size is to be set to a realistic value.
●
Do not enter any initial setup nor fixed setup.
Effect:
The best possible setup is calculated within the stated program run time.
User’s Manual Line Computer UNIX 11 Production Tools / Optimization
Software Version 402.xx Edition 06/96 11.4 Optimization Dialog
11 - 29
11.4.3.3 Changing Job Parameters
If neither the default values nor the standard values are to be used for the optimization of a given lot file, it is
possible to set the job parameters for this lot file. The job parameters are valid for the optimization of this one
lot file only. For a description of the individual parameters, see section 11.4.3.1.
Procedure:
●
Click on a lot file.
●
On the SERVICES menu click on the Change job parameters option.
The „Change job parameters for xx.lose“ window opens.
●
Change the job parameters.
11.4.3.4 Discarding Job Parameters
The job parameters for a lot file that were set by the customer can be deleted. The standard parameters are
then relevant to this lot file again.
Procedure:
●
Click on a lot file.
●
On the SERVICES menu click on the Discard job parameters option.
The job parameters are deleted for this lot file. No verification query occurs.
11.4.3.5 Viewing the Error File
If errors occur during the optimization of a lot file, the optimization process is aborted and an error file is created.
This error file can be displayed using the file display option. This window contains a listing of all errors that
occurred during the optimization run (see also chapter 4).
After the errors are eliminated a new optimization run for the given lot file can be started.
Procedure:
●
Click on a lot file identified as „faulty“.
●
On the SERVICES menu click on the Viewing error file option, or double-click on the faulty lot file.
The file display window containing the error messages is opened.
11.4.3.6 Starting the Feeder Editor
In the Feeder Editor it is possible to globally define for the line allocations of components and package forms
to given feeders and waffle-pack trays. Any faulty or missing allocations that were determined in an optimization
run can, at this point, be corrected or newly defined (see chapter 9).
Procedure:
●
On the SERVICES menu click on the Starting Feeder Editor option.
The Feeder Editor is started.
11 Production Tools / Optimization User’s Manual Line Computer UNIX
11.4 Optimization Dialog Software Version 402.xx Edition 06/96
11 - 30
11.4.3.7 Starting the Restriction Editor
Clicking on the option „Starting Restriction Editor“ on the FILE menu causes the "Feeder Editor: Losplanung“
to be opened. In this editor it is possible to define for the individual lot files given allocations, restrictions, bindings
and exclusions (see chapter 9).
Procedure:
●
Click on a lot file.
●
On the SERVICES menu click on the Starting Restriction Editor option.
„Feeder Editor: Losplanung“ opens.
11.4.3.8 Checking for Producibility
Following the optimization run, a producibility check can be carried out for a lot file or for individual jobs. The
producibility check takes into account all non-productive times, gantry dependencies and vibration times of the
feeders. The results are therefore more accurate than with optimization.
Procedure:
●
Click on a lot file or a job.
●
On the SERVICES menu click on the Perform producibility check option.
A producibility check is then performed.
11.4.3.9 Displaying the Set-Up
In the Set-Up Modification Generator all set-ups and set-up changeover instructions can be displayed and
printed out (see chapter 14, section 14.5).
Procedure:
●
Click on a job.
●
On the SERVICES menu click on the Display set-up option.
The „Set-Up Modification Generator“ opens.
11.4.3.10 Displaying Result File
The complete results of the set-up optimization and the producibility check are saved to different files. These
files can be viewed by means of the file display window and printed out. They contain the data in ASCII format
and are shown in tabulated form.
Result file of set-up optimization
The results of set-up optimization of all jobs are saved to the
xx.lose/.eg
file. It contains a complete listing of all
results.
Procedure:
●
Click on a lot file.
●
On the SERVICES menu click on the Display result file option.
The file display window for the results of the selected lot file is displayed.