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6.2.3. ‘Vibration ratio’
The ‘Vibration ratio’ duration mode links the vibration duration to use in the sequence with the
duration programmed in the vibration set. Entering the value 100% corresponds to the
vibration duration entered in the vibration set and therefore, if correctly adjusted, to the time
needed for the parts to fully cross the platform. Choosing 50% represents a part-
displacement of half the platform length. This considerably simplifies calculations for the user.
The other advantage is that when the user changes a vibration set, there is no need to
readjust the vibration durations in the sequence.
IMPORTANT NOTE:
It is IMPORTANT to set the vibration duration as the time the parts need to completely
cross the platform in a given direction. The effectiveness of the ‘Centring' smart vibration
and ‘Vibration ratio’ duration mode depend on well-adjusted parameters.
6.3. Smart vibrations
A smart vibration adapts the vibration parameters depending on the situation. To do so it
needs the data from a vision system. The following sections provide a detailed explanation of
the two smart vibrations available: ‘Centring and ‘Quantity adjusted’.
6.3.1. ‘Centring’
In a sequence, the user may choose the action type on the platform in combination with a
Platform vibration (A – Z) or with the 'Centring' smart vibration. The latter determines the
optimal vibration direction and computes the vibration duration based on the data from a
vision system. The location of parts on the platform (centre of mass) is used to define the
direction and the distance to the centre. Once these two characteristics are determined, the
‘Centring’ vibration chooses:
• The adapted standard platform vibration
• The adapted vibration duration based on the given durations indicated in the vibration
set (i.e. the duration adjusted such that parts cross the entire platform)
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