Pilz PSEN op4B-S-3-080 - Manual (Page 5)

Operating Manual PSEN op4B Series
1
1 GENERAL INFORMATION
1.1 General description of the safety light curtain
Safety light curtains from the PSENopt series are multibeam
optoelectronic protection devices. They secure work areas in which
operating personnel can come into contact with moving parts of
machinery, robots and automated systems in general, which present a
risk of physical injury.
The safety light curtains are designed as safe Type 4 systems for
accident prevention in accordance with applicable international
standards, in particular:
EN 61496-1: 2004 Safety of machinery: Electrosensitive
protective equipment. Part 1: General
requirements and tests.
prEN 61496-2: 1997 Safety of machinery - Electrosensitive
protective equipment. Part 2: Particular
requirements for equipment using active
optoelectronic protective devices.
The device consists of an emitter (TX) and a receiver (RX) housed in
robust aluminium profiles. It secures the protected area by generating
an infrared protected field, which will detect an opaque object as soon
as it enters the protected field.
Both the control and evaluation logic are located inside the two units;
the electrical connection is made via M12 connectors, which are
positioned underneath the profiles. The emitter (TX) and receiver (RX)
are synchronised optically. This means the two units do not have to be
connected directly to each other.
The infrared beams are controlled and monitored via a
microprocessor, which provides the user with information about the
operating status of the safety light curtain via LED indicators (see Ch.
7, “Diagnostics”).
Two yellow LEDs simplify the alignment of the two units during
installation (see Ch. 5 “Alignment”).
As soon as an object, a limb or the operator’s body interrupts the
beams sent by the emitter (TX), both outputs (OSSD) are immediately
opened and the machine connected to the OSSD is stopped.