SB4-OR-4XP-B

6

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Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

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Safety control unit

The operating instructions that accompany the unit must be observed during planning, installation and operation.

The SB4 evaluation system is a type 4 (EN 61496-1 or IEC 61496-1) and category 4 (EN 954-1) AOPD. This system has also

been designed and tested in accordance with IEC 61508. The system meets the requirements of SIL3.

At most 4 safety thru-beam sensors can be connected to the control interface in the default setting.

The SB4 module at position 2 enables SLA-series "3-wire" thru-beam sensors (such as SLA5) and SLP light grids to be

connected. P-switching safety devices with integrated cross-circuit monitoring can also be connected, such as SLC series safety

light curtains. Switching mats designed according to the 4-wire principle and single or dual-channel contact-equipped safety

sensors can also be connected.

The cables must be selected for and routed to the photoelectric sensors and light grids in such a way as to ensure short circuits

cannot occur between the receiver and the emitter wire.

Light curtains with semiconductor switching outputs and dual-channel contact-equipped safety sensors are monitored for

simultaneity The monitoring time is 2 seconds.

The devices are connected at channels 3 and 4 and/or 1 and 2. Please note that these sensors must feature integrated cross-

circuit monitoring, as the module in these

sensors is not designed to include this feature. Contact-equipped safety sensors that are connected to the SafeBox must operate

normally closed outputs.

An open contact signifies that the status is "safe". Switching mats designed in accordance with the 4-wire principle can be

connected to channels 1 and 2 and/or 3 and 4.

The control interface has empty slots. They are used for individual function extensions with SB4 modules.

The following SB4 modules can be used:

• SB4 modules 4C:SB4 modules 4C in various versions.

SB4 module for connecting four 2-wire sensors

• SB4 modules 4X:SB4 modules 4X in various versions.

SB4 module for connecting 3-wire sensors and safety devices with semiconductor switching outputs

• SB4 modules 6C:SB4 modules 6C in various versions.

SB4 module for connecting six 2-wire sensors

• SB4 modules 2E:SB4 modules 2E in various versions.

Additional 2 OSSDs, relay monitoring, restart connection and 2 connections for contact-equipped safety signals(e.g.

emergency off switch), timer functions

• SB4 modules 4M:SB4 modules 4M in various versions.

Muting module for connecting up to 4 muting sensors

The startup/restart interlock is activated by default.

All groups feature DIP switches to select the functions. Two switches must always be actuated in order to select a function.

Switches on the first group:

Switches on the second group:

Six DIP switches for selecting the sensor type and position are available on the module. There are six ways in which to combine

the sensors. The required combination must be set in binary form. Two switches must always be actuated in order to select a

function, e.g. DIP switches 1–3 have the same switch position as DIP switches 4–6.

Function

Operating modes

Switch

Position

Operating mode

1 and 3

OFF

without startup/restart interlock (restart, RI)

ON

with startup/restart interlock (restart, RI)

2 and 4

OFF

without relay monitor (RM)

ON

with relay monitor (RM)

DIP switches

Operating mode

3 and

6

2 and

5

1 and

4

0

0

0

SLA/SLP/bridge on channel 1 + 2 and channel 3 + 4

0

0

1

SLA/SLP/bridge on channel 1 + 2 and SLC channel 3 + 4

0

1

0

SLC channel 1 + 2 and channel 3 + 4

0

1

1

SLA/SLP/bridge on channel 1 + 2 and pressure-sensitive mat

channel 3 + 4

1

0

0

Pressure-sensitive mat channel 1 + 2 and channel 3 + 4

1

0

1

SLC channel 1 + 2 and channel 3 + 4