Reer ARGOLUX AS Series User Manual

TEST SEQUENCE AND CONTROLS
TEST SEQUENCE AND CONTROLSTEST SEQUENCE AND CONTROLS
TEST SEQUENCE AND CONTROLS
Optical scanning circuitry.
Optical scanning circuitry.Optical scanning circuitry.
Optical scanning circuitry.
The scanning circuitry of ARGOLUX AS safety barrier is based upon a
self-checking principle which permanently controls its correct operation.
Particularly, the system controls the multiplex signal on the emitter side, and
measures the IR light pulse period emitted for each beam of the curtain.
The reversed operations are carried out on the receiver side where the
system controls the demultiplex signals and recognize the infrared light
pulse thanks to the measurement of the caught light period.
An accurate synchronisation enables this identification and avoids taking
into account possible infrared disturbances.
If an unwanted condition occurs during the IR light beam transmission (an
object is in the detection field or a failure appears), the receiver sends a
command signal to the control unit which de-energizes its relays and
remains in the alarm condition until the fault condition is removed.
Output circuitry.
Output circuitry.Output circuitry.
Output circuitry.
The control unit AU S3 controls the correct operation of the both emitter
and the receiver units thanks to its electrical connection with the receiver
ASR. The receiver provides the control unit with a signal through its unique
relay output. As mentioned in the EN 61496-1 norm, the test facility
provided with type 2 optoelectronic protective devices is partly designed to
check the correct operation of this relay output.
Other operations are checked during the test to ensure the integrity of the
system:
• The correct interlinking of the test sequence and the effective reset
of the system (test command);
• The reaction time of the two inner relays A and B (safety relays with
guided contacts) and the reaction time of the two external relays
K1 and K2, if auxiliary contacts of K1 and K2 are connected to
terminals 5 and 6 (use only safety relays with guided contacts);
• The inner command of A and B relays. A possible failure of one
component of the output circuitry can only be detected during the
test phase, and therefore the control unit de-energizes its relays
only when the next test is applied. This is also true for external
relays K1 and K2 by means of the feedback control (see below).
Test input.
Test input.Test input.
Test input.
The ARGOLUX AS curtain is a type 2 opto-electronic protective device
designed according to the EN 61496-1 and prEN 61496-2 European
Norm. Its safeguarding function is based upon a periodic performance test
initiated by the machine.
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Reer ARGOLUX AS Series Specifications

General

Brand	Reer
Model	ARGOLUX AS Series
Category	Safety Equipment
Language	English