Toshiba T2 Series 사용자 설명서
Page iii
Safety Precautions
This application guide is prepared for users of Toshiba programmable controller PROSEC
T2-Series and EX100 Series (hereafter called T2).
Read this guide and your PLC's manual thoroughly to use the PLC system safely.
Hazard Classifications
In this guide, the following two hazard classifications are used to explain the safety
precautions.
precautions.
Even if a precaution is classified as CAUTION, it may cause serious results
depending on the situation. Observe all the safety precautions described on this
guide.
depending on the situation. Observe all the safety precautions described on this
guide.
Safety Precautions
!
WARNING
!
CAUTION
!
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
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.
may result in minor or moderate injury. It may also be used to
alert against unsafe practices.
• Read the Safety Precautions described in your PLC's User's Manual before
using the PLC.
• Carefully design a fail-safe system in order to avoid an unsafe situation caused
by PLC failure. When the PLC detects an error in its self-diagnostics, the PLC
goes into the error mode. In the error mode, all the PLC outputs turn OFF and
the analog outputs go to 0 (zero).
goes into the error mode. In the error mode, all the PLC outputs turn OFF and
the analog outputs go to 0 (zero).