IDEC SG2 User Manual

The operator is able to check the main causes of the system stop and failure, using the same LEDs used for visualising the functions. For Receiver:

Function Status Meaning LED

Normal operation

TEST (red ON)

Emission (OSSD ON) (green ON)

Interruption (OSSD OFF) (red ON)

Light curtain being tested, the OSSD status shall be OFF

Light curtain working and in normal operating conditions

Light curtain working and in safety block conditions.

Function Type Check and repair LED

OSSD error (yellow and red BLINKING)

Internal error (red ON yellow BLINKING)

Check OSSD connections; make sure that they are not in contact with one another or with the supply cables, then Reset. If the failure continues contact DATASENSOR

Switch OFF and switch ON the supply circuit; if the failure continues contact DATASENSOR

Error status

Optical error (red ON yellow BLINKING)

No power supply (LEDs OFF)

Reset. If the failure continues contact DATASENSOR

Check connections and input voltage correct value. If the failure continues contact DATASENSOR

For Emitter:

Function Status Meaning LED

Test (green ON) Light curtain being tested, the OSSD status shall be OFF

Normal operation

Emission (green ON yellow ON)

Light curtain working and in normal operating conditions

Function Type Check and repair LED

Internal error (green ON yellow BLINKING)

Error status

DECLARATION OF CONFORMITY

We DATASENSOR S.p.A. declare under our sole responsibility that these products are conform to the 2004/108/CE, 2006/95/CE Directives and successive amendments

WARRANTY

DATASENSOR S.p.A. warrants its products to be free from defects. DATASENSOR S.p.A. will repair or replace, free of charge, any product found to be defective during the warranty period of 36 months from the manufacturing date. This warranty does not cover damage or liability deriving from the improper application of DATASENSOR products.

DATASENSOR S.p.A. Via Lavino 265 40050 Monte S. Pietro - Bologna - Italy Tel: +39 051 6765611 Fax: +39 051 6759324 http://www.datasensor.com e-mail: info@datasensor.com

DATASENSOR S.p.A. cares for the environment: 100% recycled paper. DATASENSOR S.p.A. reserves the right to make modifications and improvements without prior notification.

Optical error (green ON yellow blinking)

No power supply (LEDs OFF)

Switch OFF and switch ON the supply circuit; if the failure continues contact DATASENSOR

Switch OFF and switch ON the power supply circuit. If the failure continues contact DATASENSOR.

Check connections and input voltage correct value. If the failure continues contact DATASENSOR

830000052 Rev.B

SERIES

Safety light curtains with infrared beams

QUICK GUIDE

SAFETY INFORMATION

The following points must be observed for a correct and safe use of the

 The stopping system of the machine must be electrically controlled.  This control system must be able to stop the dangerous movement of the machine within the total

machine stopping time T as per par. 1.1.3 of the manual included in the CD supplied and during all working cycle phases.

 Mounting and connection of the safety light curtain must be carried out only by qualified personnel,

according to the indications included in the special sections (refer to sections 2; 3; 4; 5) and in the applicable Standards.

 The safety light curtain must be securely installed so that access to the dangerous zone is not possible

without interrupting the beams (see section 2 “Installation mode”).

 The personnel o perating in the dangerous area must be well trained and must have adequate knowledge

of all the operating procedures of the safety light curtain.

 The TEST/RESET button must be located outside the protected area as the operator must check the

protected area during all Test and Reset operations.

 Please carefully read the instructions for the correct functioning before powering the light curtain.

safety light curtains of the SG2 series:

Precautions to be observed for the choice and installation of the device

Make sure that the protection level assured by the SG2 device

(Type 2) is compatible with the real danger level of the machine to be

 The outputs (OSSD) of the ESPE must be used as machine stopping devices and not as command

devices. The machine must have its own START command.

 The dimension of the smallest object to be detected must be larger than the resolution level of the device.  The ESPE must be installed in a room complying with the technical characteristics indicated in chapter 10

“Technical data” of the manual included in the CD supplied.

 Do not place the device near intense and/or flashin g light sources and, in particular, close to receiving unit

front surface.

controlled, according to EN 954-1 and EN 13849-1.

 The presence of intense electromagnetic disturbances could jeopardise device operation.

This condition has to carefully evaluated with the support of the DATASENSOR Technical service.

 The operating distance of the device can be reduced in presence of smog, fog or airborne dust.  A sudden change in environment temperature, with very low minimum peaks, can generate a small

condensation layer on the lenses and so jeopardise functioning.

The failure to respect the safety distance reduces

or cancels ESPE the protection function.

For more detailed information about calculation of safety distance,

please refer to the complete manual contained in the CD supplied.

CONNECTIONS

RECEIVER (RX) EMITTER (TX)

OSSD1

0 V

1 = brown = +24 VDC 2 = white = OSSD 1 3 = blue = 0V 4 = black = OSSD 2 5 = grey = TEST/RESET

OSSD2

TEST/RESET

+24 VD C

NOT USED

2 1

0 V

1 = brown = +24 VDC 2 = white = NOT USED 3 = blue = 0V 4 = black = NOT USED

+24 VDC

NOT USED

ALIGNMENT PROCEDURE

The alignment between the emitting and the receiving units is necessary to obtain the corr ect functioning of the light curtain. A good alignment prevents output instability caused by dust or vibrations. The alignment is perfect if the optical axes of the first and the last emitting unit beams coincide with the optical axes of the corresponding elements of the receiving unit. The beam used to synchronise the two units is the first after the connector. SYNC is the optics connected with this beam and LAST is the optics connected to the last beam after the SYNC unit.

last optics (LAST)

first optics = synchronisation

NORMAL

OP.

SAFE (BREAK)

Receiver

LAST

SYNC

NORMAL

OP.

Emitter

Signals are clearly identified through symbols allowing immediate reading, independent of bars directions. A short description of the signalling LEDs is necessary to avoid misunderstandings.

Two yellow LEDs ( LAST, SYNC) on SG2-B receiver, facilitates the alignment procedure. During standard operation, the LEDs indicate the safety light curtain status, as shown in the table.

Correct alignment procedure

The light curtain alignment can be effected only after having completed the mechanical installation and the electrical connections. The following procedure has to be followed:

 Check the green LED () and the yellow LED (

correctly;

 Verify that the sensitive area from the safety light curtain is free;  Verify that one of the following conditions is present on the RX unit:

STANDARD CONDITION - NORMAL OP.

 Green LED (

aligned.

STOP CONDITION - SAFE (BREAK)

 Green LED (  The status of both yellow LEDs (  Continue with the following steps to pass from condition 2 to condition 1:

A Keep the receiver in a steady position and set the emitter until the yellow LED (

This condition shows the effective alignment of the first synchronisation beam.

B Rotate the emitter, pivoting on the lower optics axis, until the yellow LED (

Under these conditions, the SAFE LED shall turn ON.

NOTE: Ensure that the green LED ( ) is steady ON.

C Delimit the area in which the green LED ( ) is steady through some micro adjustments - for the

first and then for the second unit - then place both units in the centre of this area.

 Fix the two units firmly using brackets.  Verify that the green LED (

red LED ( detected).

 This verification shall be made with the special cylindrical “Test Piece” having a size suitable to the

resolution of the device used.

NOTE: Passing the Test Piece along the whole sensiti ve area and at a ny distance from the two units, the red LED (

A daily test is recommended.

) ON and red LED ( ) OFF. Both yellow LEDs ( , ) are OFF. Units are

) OFF and red LED ( ) ON.

, ) does not matter. Units are not aligned.

) on the RX unit is ON and beams are not interrupted, then verify that the

) turns ON if even one single beam is interrupted (condition where an object has been

) shall be always ON and never change status.

) on the TX unit. If ON, the emitter is running

SYNC) is OFF.

LAST) is OFF.

DIAGNOSTIC FUNCTIONS

The operator can visualise the operating condition of the light curtains through the four LEDs positioned on the receiver unit and two LEDs on the emitter unit. The figure below shows all signalling LEDs modes: OFF, ON and BLINKING.

LED OFF

LED ON

LED BLINKING

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