IDEC SG2 Type 2 Hand & Body - Manual (Page 2)

 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)
4
5
3
1 2
0 V
OSSD1
TEST/RESET
+24 VDC
OSSD2 3 4
2 1
NOT USED
0 V
+24 VDC
NOT USED
1 = brown = +24 VDC
2 = white = OSSD 1
3 = blue = 0V
4 = black = OSSD 2
5 = grey = TEST/RESET
1 = brown = +24 VDC
2 = white = NOT USED
3 = blue = 0V
4 = black = NOT USED
ALIGNMENT PROCEDURE
The alignment between the emitting and the receiving units is necessary to obtain the correct 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.
Receiver 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 (
) on the TX unit. If ON, the emitter is running
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 (
) ON and red LED ( ) OFF. Both yellow LEDs ( , ) are OFF. Units are
aligned.
STOP CONDITION - SAFE (BREAK)
 Green LED (
) OFF and red LED ( ) ON.
 The status of both yellow LEDs ( , ) does not matter. Units are not aligned.
 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 ( SYNC) is OFF.
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 ( LAST) is OFF.
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 (
) on the RX unit is ON and beams are not interrupted, then verify that the
red LED ( ) turns ON if even one single beam is interrupted (condition where an object has been
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 sensitive area and at any distance from the two units,
the red LED (
) shall be always ON and never change status.
A daily test is recommended.
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.
last optics (LAST)
first optics = synchronisation
optics (SYNC)
LED ON
LED OFF
LED BLINKING
NORMAL
OP.
NORMAL
OP.
SAFE (BREAK)
LAST
SYNC
ON