Baumer BA DenexGripperLED - Manual (Page 4)

User Manual DENEX Gripper LED 4/24 Baumer Electric AG
Version 2013-02, V1.4 www.baumer.com Frauenfeld, Switzerland
1 INTRODUCTION
WARNING
When a DENEX Gripper LED is combined with user
selected components to form a system, the user is responsible for proper selection of parts
and subsequent operation. This unit shall be installed, adjusted and serviced only by
qualified personnel who are familiar with the operation of the
DENEX Gripper LED and other system components. Serious personal injury and
equipment damage may result if this procedure is not followed.
2 RECEIVING AND HANDLING
Upon delivery of the equipment, thoroughly inspect the shipping containers and contents
for indications of damage incurred in transit. If any concealed loss or damage is
discovered later, notify the freight or express agent.
3 BASIC FUNCTION
The DENEX Gripper LED is a non-contact sensor which counts all kinds of products
carried in a Gripper. It senses the leading edge and generates one output pulse for every
product. Product thickness from a single folded sheet and up can be sensed without
adjustments.
The Infra Red-Light Emitting Diode (IR-LED) that is used produces a light beam which is
projected onto the stream. The reflected light from the spot is collected by two light
sensitive detectors P and R and is analyzed by a microprocessor. The difference in
reflected light that occurs when the light spot is temporarily hidden behind the passing
product edge provides the basic data for the sensor to determine a count.
The patented principle in utilizing two detectors - one for detecting the obstructed light and
the other for reference, enables the following unique benefits:
•
Wide operating range
•
High accuracy
•
Insensitive to color of paper or print
•
Insensitive to product thickness
The use of a microprocessor further enhances the flexibility and reliability of the unit.
Through the use of the microprocessor, the DENEX Gripper LED can be adapted to
different operating modes by changing DIP-switch settings which can be reached from
outside, via the lid on top of the unit.