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• 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 instructions given in this manual are concerned with this product. Refer to the user's manual of the
CPU module to use for a description of the programmable controller system safety instructions.
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.
!
CAUTION
• Do not bunch the control wires or communication cables with the main circuit or power wires, or
install them close to each other.
They should be installed 100mm(3.94inch) or more from each other.
Not doing so could result in noise that would cause erroneous operation.
• At power ON/OFF, voltage or current may instantaneously be output from the output terminal of
this module.
In such case, wait until the analog output becomes stable to start controlling the external device.
WARNING
CAUTION