For your safety
Requirements for Ex approval
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | more@turck.com | www.turck.com
07.00 | 2022/09 | 10
3 For your safety
The product is designed according to state of the art technology. Residual hazards, however,
still exist. Observe the following safety instructions and warnings in order to prevent danger to
persons and property. Turck accepts no liability for damage caused by failure to observe these
safety instructions.
3.1 Intended use
The TBEN-S2-2RFID-4DXP block module is an RFID interface for use in the Turck BL ident sys-
tem. The device is connected between the controller and the read/write device and transmits
commands from the controller to the read/write devices. Read data is sent to the controller via
the device.
The device supports the HF read/write heads from firmware version Vx.90 and UHF readers
from firmware version FW 1.45.
Up to two BL ident read/write devices can be connected to the device in normal operation. In
Bus mode it is possible to connect up to 32 bus-capable HF read/write heads per channel. Four
universal digital channels are also provided. The multiprotocol interfaces can be connected to
the Ethernet fieldbus systems PROFINET, Modbus TCP and EtherNet/IP.
Installation directly in the field is possible thanks to protection class IP65, IP67 IP67K. Devices
with the Ex marking are suitable for use in the Ex area in zone 2 and zone 22.
The device must only be used as described in these instructions. Any other use is not in accord-
ance with the intended use. Turck accepts no liability for any resulting damage.
3.2 General safety instructions
n The device must only be fitted, installed, operated, parameterized and maintained by trained
and qualified personnel.
n Only use the device in compliance with the applicable national and international
regulations, standards and laws.
n The device meets the EMC requirements for the industrial areas. When used in residential
areas, take measures to prevent radio frequency interference.
n Change the default password of the integrated web server after the first login. Turck
recommends the use of a secure password.
3.3 Notes on Ex protection
n When using the device in Ex circuits, the user must also have knowledge of explosion
protection (IEC/EN 60079-14 etc.).
n Observe national and international regulations for explosion protection.
n Only use the device within the permissible operating and ambient conditions (see certifica-
tion data and Ex approval specifications).
3.4 Requirements for Ex approval
n Only connect and disconnect circuits when no voltage is present.
n Connect the metal protective cover to the equipotential bonding in the Ex area.
n Ensure impact resistance in accordance with EN IEC 60079-0 — alternative measures:
– Install the device in the TB-SG-S protective housing (ID 100014866).
– Install the device in an area offering impact protection (e.g. in the robot arm) and
attach a warning sign: DANGER Do not connect or disconnect the device under power.”
n Do not install the device in areas critically exposed to UV light.
n Prevent risks caused by electrostatic charge.
n Provide unused male connectors with suitable sealing or blanking caps in order to ensure
protection class IP65, IP67 or IP69K The tightening torque for the M4 screws is 0.5 Nm.
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