Safety precautions – Toshiba PROSEC T3H User Manual
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User’s Manual
1
Safety Precautions
This manual is prepared for users of Toshiba’s Programmable Controller T3H.
Read this manual thoroughly before using the T3H. Also, keep this manual and related manuals
so that you can read them anytime while the T3H is in operation.
General Information
1. The T3H has been designed and manufactured for use in an industrial environment.
However, the T3H is not intended to be used for systems which may endanger human
life. Consult Toshiba if you intend to use the T3H for a special application, such as
transportation machines, medical apparatus, aviation and space systems, nuclear
controls, submarine systems, etc.
2. The T3H has been manufactured under strict quality control. However, to keep safety
of overall automated system, fail-safe systems should be considered outside the T3H.
3. In installation, wiring, operation and maintenance of the T3H, it is assumed that the
users have general knowledge of industrial electric control systems.
If this product is handled or operated improperly, electrical shock, fire or damage to this
product could result.
4. This manual has been written for users who are familiar with Programmable Controllers
and industrial control equipment. Contact Toshiba if you have any questions about this
manual.
5. Sample programs and circuits described in this manual are provided for explaining the
operations and applications of the T3H. You should test completely if you use them as
a part of your application system.
Hazard Classifications
In this manual, the following two hazard classifications are used to explain the safety
precautions.
Indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury. It may also be used to alert
against unsafe practices.
Even a precaution is classified as CAUTION, it may cause serious results depending on
the situation. Observe all the safety precautions described on this manual.
!
WARNING
!
CAUTION