Safety Light Curtain Type 2 SF2B Ver.2

Type 2 safety solution
International regulations for safety measures at reasonable cost

C-UL-US CE Marking TUV SUD

UL/C-UL , CE , TUV Approved
CE : Machinery Directive, EMC Directive
UL : Approved Listing

OSHA/ANSI Category 2 PLc SIL1※1
※1The control category differs depending on the configuration and wiring of the external circuit.

Note :
Upgraded to version 2.0 from January 2009 shipments.
Protection
Conventional: IP65 (IEC) <Previous>
Ver.2: IP65 / IP67 (IEC, JIS) <New>

Features

■For your safety

In using the safety light curtain, please establish a control system to satisfy the below items in order to ensure safety with a total system.

>>Precautions for use

Protective structure IP67* is achieved with a seamless structure that has reduced seams *Version 2.0 or later

The inner unit is protected by a cylindrical inner case. The seams of unit and lens surfaces have been greatly reduced, so that particles of oil mists and dust are prevented from getting in.

Protective structure IP67 is achieved with a seamless structure that has reduced seams

Extensive range of variations available with sensing widths from 168 mm to 1,912 mm 6.614 in to 75.275 in

Two types are available for different minimum sensing object sizes.

Hand protection type SF2B-H□

Minimum sensing object ø27 mm ø1.063 in
(20 mm 0.787 in beam pitch)

Hand protection type SF2B-H

Arm / Foot protection type SF2B-A□

Minimum sensing object ø47 mm ø1.850 in
(40 mm 1.575 in beam pitch)

Arm / Foot protection type SF2B-A

Series connection of up to three sets is possible

Sub-sensors for series connection (optional) can be used to connect up to three sets of safety light curtains (up to a total of 128 beam channels maximum; however, the SF2B-A□ allows up to 96 beam channels when two sets are connected, and up to 64 beam channels when three sets are connected).

  • The safety light curtains and the sub-sensors for serial connection (optional) have different models. When connecting safety light curtains in series, be sure to use the sub-sensors for serial connection and serial connection cables which are sold separately.
  • The SF2B-H8-□ and SF2B-A4-□ cannot be connected in series.
    For details, refer to "Series connection"of"PRECAUTIONS FOR PROPER USE"

Series connection of up to three sets is possible

"ZERO" dead zone. Unit length = protective height, so mounting is possible with no dead zone New concept

The sensing area contains no dead spaces. Even with series connections, there are no dangerous openings at the interfaces between safety light curtains. This makes a simpler and more compact installation possible.

 

Note: The SF2B-H8-□ and SF2B-A4-□ cannot connected in series.
For details, refer to “PRECAUTIONS FOR PROPER USE

Mutual interference is reduced without need for interference prevention lines

The scan timing of the safety light curtain is automatically shifted in order to reduce mutual interference.

Mutual interference is reduced without need for interference prevention lines

Reducing the number of malfunctions caused by extraneous light

A double scanning method and retry processing are new functions exclusive to that are effective in eliminating the effect of momentary extraneous light from peripheral equipment.

Reducing the number of malfunctions caused by extraneous light

Equipped with a digital error indicator so that error details can be understood at a glance

The system constantly checks the safety light curtain for problems such as incorrect cable wiring, disconnection, short-circuits, internal circuit problems, and incoming light problems.
If a problem should occur, details of the error appear on the digital display. Therefore, smooth support is possible if problems occur at startup and during maintenance operations, even if assistance is given via telephone.

Equipped with a digital error indicator so that error details can be understood at a glance

Beam-axis alignment indicators show the incident light position at a glance

Beam-axis alignment indicators display the beam channels of the safety light curtain in four blocks.
The blocks where the beam axes match will light up in red in turn. When all the beam axes receive light, all the LEDs light up green. Furthermore, a stability indicator (STB.) lights up when there is sufficient incoming light.

Beam-axis alignment indicators show the incident light position at a glance

* When using the SF2B-CB05-B adapter cable, the beam axis alignment indicator of emitter cannot be used.

Adapter cables and adapter mounting brackets are available so that previous peripheral devices for safety light curtains can still be used

The safety light curtain SF2-A / SF2-N series, area sensor NA40 series, and SF1-N series can be replaced with the SF2B series using the current mounting holes and connection cables.

Selectable safety circuits

The safety light curtain unit has a built-in monitoring function for external devices (such as fused relay monitoring).
This supports the construction of safety light curtain peripheral safety circuits which do not use a safety relay unit, and contributes to reduced costs and a more compact control panel. In addition, a connectable control unit is used, so that a safety circuit that is easy to construct and easy to install can be selected.

Selectable safety circuits

・ Recommended safety relays
Panasonic Corporation
Model No.: SF series

SF series
SF relay, slim type
SFS3-L-DC24V (AG1S132)
SFS4-L-DC24V (AG1S142)

DIN terminal block
SFS4-SFD (AG1S847) [4-poles type]
SFS6-SFD (AG1S867) [6-poles type]
Note: Contact the manufacturers for details on the recommended products.

Significant cost reduction is achieved by using corner mirror

By using a single corner mirror, safety light curtain and peripheral safety circuit for one set are eliminated. Enables significant cost reduction and savings on wiring.
The control category is unchanged.

When setting up the safety light curtains in the L-shape or U-shape, usually two or three sets of the safety light curtains are required.
However, using the corner mirror to reflect the laser light allows only one set of the safety light curtains to be set up at the L-shape or U-shape.

Significant cost reduction is achieved by using corner mirror

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