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SYSTEM DESCRIPTION
3
27
8026365/V1-0/2022-03|SICK
Subject to change without notice
S U P P L E M E N T A R Y O P E R A T I N G I N S T R U C T I O N S | VMS4200-x/5200-x MID
Fig. 16: Dynamic presence detection on double-belt conveyor systems
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Dynamic presence detection is the alternative to the permanently enable singulated
mode or synchronized mode.
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The same transport conditions apply as for singulated and synchronized mode.
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A short signal identifies that an object is present on one cross-belt conveyor element.
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A long signal indicates that an object is present across both cross-belt conveyor
elements of the transport element.
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If there is no signal, then the transport unit is empty.
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Depending on how the transport unit is occupied, the measurement accuracy of
the VMS4200-x / 5200-x MID dynamically switches between singulated mode
(5 mm x 5 mm x 5 mm / 0.2" x 0.2" x 0.2") and synchronized mode (10 mm x 10 mm x
10 mm / 0.4" x 0.4" x 0.4")
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This switching is implemented by linking the cross-belt signal with the signals from
the photoelectric sensors connected to the SIM2000-2 Prime controller.
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In billing-related operation, the measurement accuracy selected for a specific
measurement is stored in the alibi memory together with the measured value.
Double-belt systems
with dynamic
presence detection