Business > Industrial Devices > Automation Controls Top > FA Sensors & Components > Sensors > Light Curtains / Safety Components > Compact Type 4 Safety Beam Sensor ST4
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From wide areas to narrow spaces, full support for both safety and productivity!
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UL/C-UL
, CE
, TUV
, UKCA
Approved
CE :Machinery Directive, EMC Directive
UKCA :Machinery Regulations, EMC Regulations
UL : Approved Listing
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※1 | The control category differs depending on the configuration and wiring of the external circuit. |
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Secures safety of large facilities where installation of guardian fence is difficult.
The numbers of sensor heads and controllers can be freely adjusted to meet the heights and the required numbers of the protection area. |
The beam interruption indicator is incorporated in both the emitter and receiver. This indicator can be used not only for operation confirmation but also for beam axis alignment. Moreover, the stability indicator indicates if the incident light intensity exceeds 150 % in stable operation. |
Light received condition of the sensor heads in series connection can be confirmed by the high-functional controller ST4-C12EX.
In addition, any abnormal sensors during lockout can be identified.
Ensures safety in small openings that are often missed. |
The Type 4 long sensing range type has a compact size that is equivalent to those of general-purpose photoelectric sensors. |
Having the same mounting pitch as those of general-purpose photoelectric sensors makes model switchovers easy. |
Conforming to IP67 rating, the sensor heads can be used safely even at lines where water splashes during washing. |
The emission amount adjuster can be used to reduce the emission to control any interference to the surrounding sensors. |
A single unit can be used for PNP / NPN output switching, reducing the number of parts that need to be registered. |
Connecting to the sensor head is done using connector connections, which shortens setup and replacement time. |
A spring method is used for the terminal blocks. There is no need to control tightening torques for these terminal blocks. |
Connection is possible with a single wire or coil wires. |
The work required for reconnecting wiring during maintenance is reduced. |
Semiconductor output is used for control output. This means there is no need to periodically replace safety relays. |
If a problem should occur, the control output is switched OFF, and the details of the error appear on the digital display. |
Sensor heads, muting sensors, and muting lamps connect directly to the controller, so that muting control circuits can be built easily.
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Muting pattern No.1 Compliant to international safety standard ISO 12643 for printing industry Muting area can be changed to suit the printing process. This is the optimal muting control for printing machines.
Muting pattern No.2
Set apart only the top-most sensor heads and perform muting control. |
Muting pattern No.3
Divide the muting area into two. |
In case the sensor head has been interrupted by an object or in case there is an emergency stop before the muting conditions have been established, all the sensor heads will be temporarily deactivated following by a smooth restart.
In case the muting lamp that is connected to the controller breaks, an alarm will go off. Also, auxiliary outputs that link to the muting function, override function, and control outputs (OSSD) are incorporated.
Auxiliary outputs | Function | Operation |
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Auxiliary output 1 | Muting output | ON when muting function is invalid |
Auxiliary output 2 | Override output | ON when override function is invalid |
Auxiliary output 3 | Blown lamp output | ON when muting lamp is in normal condition |
Auxiliary output 4 | Monitor output | ON when control output is OFF |
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