SAFETY PRECAUTIONS
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and
pay full attention to safety to handle the product correctly.
The precautions given this manual are concerned with this product. Refer to the User’s
Manual of the CPU module in use for details on the safety precautions for the
programmable controller system.
In this manual, the safety precautions are classified into two levels: "
WARNING" and
"
CAUTION".
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in minor or moderate injury or property damage.
Under some circumstances, failure to observe the precautions given under "
CAUTION"
may lead to serious consequences.
Observe the precautions of both levels because they are important for personal and
system safety.
Make sure that the end users read this manual and then keep the manual in a safe place
for future reference.
[Design Precautions]
WARNING
Install a safety circuit external to the programmable controller that keeps the entire
system safe even when there are problems with the external power supply or the
programmable controller. Otherwise, trouble could result from erroneous output or
erroneous operation.
(1) The status of analog output changes depending on the setting of various functions
that control the analog output. Take sufficient caution when setting for those
functions.
For details of analog output status, refer to Section 3.4.5 "Combinations of
various functions"
(2) Normal output may not be obtained due to malfunctions of output elements or the
internal circuits. So build an external monitoring circuit that will monitor any single
outputs that could cause serious trouble.
WARNING
CAUTION
