Toshiba T2N - Manual (Page 4)

Introduction
- iii -
Safety Precautions
This manual is prepared for users of Toshiba’s Programmable Controller T2N.
Read this manual thoroughly before using the T2N. Also, keep this manual and related manuals so
that you can read them anytime while the T2N is in operation.
General Information
1. The T2N has been designed and manufactured for use in an industrial environment.
However, the T2N is not intended to be used for systems which may endanger human
life. Consult Toshiba if you intend to use the T2N for a special application, such as
transportation machines, medical apparatus, aviation and space systems, nuclear
controls, submarine systems, etc.
2. The T2N has been manufactured under strict quality control. However, to keep safety of
overall automated system, fail-safe systems should be considered outside the T2N.
3. In installation, wiring, operation and maintenance of the T2N, 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 T2N. 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