Weidmuller WI-I/O 9-K: Wireless I/O Transmitter v1.9 - Manual (Page 4)

WI-I/O 9-K v1.9
Page 4
Important Notice
Weidmuller, Inc. products are designed to be used in industrial environments, by experienced
industrial engineering personnel with adequate knowledge of safety design considerations.
Weidmuller, Inc. radio products are used on unprotected license-free radio bands with radio noise
and interference. The products are designed to operate in the presence of noise and interference,
however in an extreme case, radio noise and interference could cause product operation delays or
operation failure. Like all industrial electronic products, Weidmuller, Inc. products can fail in a
variety of modes due to misuse, age, or malfunction. We recommend that users and designers
design systems using design techniques intended to prevent personal injury or damage during
product operation, and provide failure tolerant systems to prevent personal injury or damage in
the event of product failure. Designers must warn users of the equipment or systems if adequate
protection against failure has not been included in the system design. Designers must include
this Important Notice in operating procedures and system manuals.
These products should not be used in non-industrial applications, or life-support systems, without
consulting Weidmuller, Inc. first.
1. For WI-I/O 9-x modules, a radio licence is not required in many countries, provided the
module is installed using the antenna and equipment configuration complying with the
country’s regulations.. Check with your local distributor for further information on
regulations.
2. For WI-I/O 9-x modules, operation is authorised by the radio frequency regulatory
authority in your country on a non-protection basis. Although all care is taken in the
design of these units, there is no responsibility taken for sources of external interference.
The WI-I/O 9-x intelligent communications protocol aims to correct communication
errors due to interference and to retransmit the required output conditions regularly.
However some delay in the operation of outputs may occur during periods of interference.
Systems should be designed to be tolerant of these delays.
3. To avoid the risk of electrocution, the antenna, antenna cable, serial cables and all
terminals of the WI-I/O 9-x module should be electrically protected. To provide
maximum surge and lightning protection, the module should be connected to a suitable
earth and the antenna, antenna cable, serial cables and the module should be installed as
recommended in the Installation Guide.
4. To avoid accidents during maintenance or adjustment of remotely controlled equipment,
all equipment should be first disconnected from the WI-I/O 9-x module during these
adjustments. Equipment should carry clear markings to indicate remote or automatic
operation. E.g. "This equipment is remotely controlled and may start without warning.
Isolate at the switchboard before attempting adjustments."
5. The WI-I/O 9-x module is not suitable for use in explosive environments without
additional protection.