Datalogic SG4 FIELDBUS Series, Инструкция по эксплуатации, Страница: 12 / 136

GENERAL INFORMATION
2 SG4 EXTENDED
The device, consisting of one emitter and one receiver contained inside aluminum pro-
files, generates infrared beams that detect any opaque object positioned within the
light curtain detection field.
The emitter and the receiver are equipped with the command and control functions.
The connections are made through one or more connectors as specified in "
Electrical
Connections" on page 21
.
The synchronization between the emitter and the receiver takes place optically, i.e. no
electrical connection between the two units is required.
The microprocessor guarantees the check and the management of the beams that are
sent and received through the units: the microprocessor – through some LEDs – informs
the operator about the general conditions of the safety light curtain (see "
User Interface
and Diagnostics" on page 76
).
The receiver is the main controller for all functions. It monitors all safety actions in case
of failure and performs general functions as well.
During installation, a user interface facilitates the alignment of both units (see "
Align-
ment Procedure" on page 29
).
As soon as an object, or a limb or the operator’s body accidentally interrupts one or
some of the infrared beams sent by the emitter, the receiver immediately opens the
OSSD outputs or trigger Safety State over connected safety Fieldbus.
This manual contains all the information necessary for the selection and operation of
the safety devices.
However, specialized knowledge not included in this technical description is required for
the planning and implementation of a safety light curtain on a power-driven machine.
As the required knowledge may not be completely included in this manual, we suggest
the customer to contact Datalogic Technical Service for any necessary information rela-
tive to the functioning of the light curtains and the safety rules that regulate the correct
installation (see "
User Interface and Diagnostics" on page 76
).
PACKAGE CONTENTS
Package contains the following objects:
• Receiver (RX)
• Emitter (TX)
• 8-pole Rx pigtail cable
• 5-pole Tx pigtail cable
• Quick Guide of safety light curtain
• Periodical checklist and maintenance schedule
• 4 angled fixing brackets and specific fasteners
• 2 additional angled fixing brackets for models with heights included between 1200
and 1800 mm