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Photoelectric Safety Barrier
TECHNICAL DESCRIPTION
The SB2-K-2-500 safety barriers has been developed for applications which require the detection of the human body; it is a low resolution system with 2 beams placed with an optic interaxis of 500 mm. The optic interaxis is compliant to the requirements of the EN 999 Regulation.
It is possible to realise barriers with height and number of beams changeable, according to the specific uses and requirements. Thanks to the small size, the easiness of installation and the high performances, the product is extremely versatile. The control and command electronics are inside the barrier; connections are made through a connector positioned under the barrier. No connection is necessary between the emitter and receiver, thanks to the optical type synchronism. The control of the emitted and received beams is guided by the two microprocessors that, by means of signalling LEDs, also supply information on the barrier’s operating status. The installation is facilitated thanks to two alignment LEDs.
The device features a ‘MUTING’ function, offering the possibility to activate or deactivate the barrier according to the operating requirements. The ‘OVERRIDE’ function allows the closure of the barrier’s output relays, even those relative to the interrupted beams, so that the material, gathered in front of the optic unit, can still pass. These functions force the system and in such cases some precautions have to be taken by the operator. The ‘BLANKING’ function allows to make a partial muting; in fact, by a dip-switch, it is possible to set up the groups of optical, excluding temporarily when the muting request will be activated. That’s why is not always necessary to exclude the whole barrier during the material crossing.
The system complies to all the Class 2 safety requirements, conforming to the EN 954-1 and IEC 61496 1-2 international regulations.
TECHNICAL DATA
| POWER SUPPLY: |
24 Vdc ± 20% |
| ABSORBED POWER: |
11 W max. |
| OUTPUT CONTACTS: |
statics PNP (NPN upon request) |
| MAX. LOAD: |
250mA each output (overload c.c. protection) |
| PROTECTION: |
IP65 |
| SECURITY LEVEL: |
2 |
| RECEIVER CONN.: |
M12-8 poles |
| EMITTER CONN.: |
M12-5 poles |
| RESPONSE TIME: |
14 ms |
| SPECIAL FUNCTIONS: |
Muting/Override/Blanking/Floating blanking |
| RESET: |
Manual-Automatic |
| OPERATING TEMP.: |
-10 ÷ 55°C |
| LEDS: |
Receiver: n°5 led:
yellow, 1st optical unit centred;
yellow, last optical unit centred;
green, power on;
green, guard;
red, break
Projector: n°2 led:
yellow, status ok;
green, power on
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| CASE: |
painted extruded aluminium |
| EMISSION: |
infrared (880 nm) |
| OPTIC INTERAXIS: |
500 mm |
| RANGE: |
0.5 ÷ 50 m |
| N° OPTICS: |
2 |
| CONTROLLED HEIGHT: |
518 mm |
| TOTAL HEIGHT: |
641 mm | |
