ALFAMATIC Press-Right, User Manual, Page: 20 / 42

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5.2.1 How to choose the limits
The initial height limits allow to monitor the dimensions of the components before they are
processed. They may be useful to monitor the dimensions of the pieces to assemble or to monitor
whether all components necessary for the processing are present.
The selection mode of the limits which monitors the maximum force and height reached, also in this
case, by the type of production.
5.2.1.1 Limits during the production (mechanical stop enabled)
When the mechanical stop process is selected, the press will always reach either the shutdown force
or the maximum force to be exerted. For this reason, the force limits are simply used to monitor the
shutdown force (minimum force limit) and to make sure that the maximum force that the piece
being processed can bear, is not exceeded (maximum force limit).
In order to monitor the actual force necessary for processing, the range must be used.
The height limits are used to make sure that the assembly dimensions are within tolerance range, at
the end of the processing.
5.2.1.2 Limits during the production (mechanical stop not enabled)
In this case the force limits are not very useful unless you wish to monitor whether the maximum
force supported by the piece being processed, is not exceeded. On the other hand, the height limits
are necessary to monitor whether the height reached is indeed the force requested. A shutdown
height lower than the minimum required limit is often set and used to monitor the actual height
reached.
5.2.1.3 Limits for bending and breaking tests
During the bending test the force limits are used simply to monitor the force exerted, while the
height limits are used to monitor the bending.
During the breaking tests, only the force limits are used to monitor the force necessary to break the
piece.
5.3 Check points
It is possible to enter five verification elements based of the following types:
The software filter of the force measured (
speed measure check point)
Measure of the minimum and maximum force value between two height values and the monitor the
maximum difference (
minimum maximum measure check point).
Measure and monitor of the curve slope within the height interval ( slope monitor check point)
Force monitor at a specific height ( force verification check point)
Height monitor at a specific force ( height verification check point)
The tool can manage up to three digital ports which may be activated at programmable heights
(
check point out check point)
5.4 Job options
The following job options may be modified by using the
JOBS MANAGEMENT > EDIT JOB > EDIT
PHASE > OPZION AND OTHER MONITORING SESSIONS > OPTIONS
.
USE RELATIVE HEIGHTS
By activating this option, relative heights are used instead of absolute heights (chapter 1.3.1).
REQUEST PIECE CODE
By activating this option, before the execution of each piece the system will request to enter a
number code that identifies the piece. This code is used by the
WinScope software to store the
curve and the values measured.
IGNORE PERMISSIONS 1 2 3
Do not affect the start of the logic status of such ports (if set up).