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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 precautions given in this manual are concerned with this product only.
In this manual, the safety precautions are classified into two levels: "
WARNING
CAUTION
Under some circumstances, failure to observe the precautions given under "
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
● Configure safety circuits externally to ensure that the entire system operates safely even when a fault
occurs in the personal computer. Failure to do so may result in an accident due to an incorrect output
or malfunction.
(1) Configure external safety circuits, such as an emergency stop circuit, protection circuit, and
protective interlock circuit for forward/reverse operation or upper/lower limit positioning.
(2) If an incorrect home position return direction is set, motion control may continue without
deceleration. To prevent machine damage caused by this, configure an interlock circuit external to
the Simple Motion board.
(3) When the Simple Motion board detects an error, the motion slows down and stops or the motion
rapidly stops, depending on the stop group setting in parameter. Set the parameter to meet the
specifications of a positioning control system. In addition, set the home position return parameter
and positioning data within the specified setting range.
● For the operating status of each station after a communication failure, refer to manuals relevant to the
network. Incorrect output or malfunction due to a communication failure may result in an accident.
● When modifying data of a running Simple Motion board, configure an interlock in the program to
ensure that the entire system will always operate safely. For other forms of control (such as program
modification, parameter change, forced output, or operating status change) of a running Simple
Motion board, read the relevant manuals carefully and ensure that the operation is safe before
proceeding. Improper operation may damage machines or cause accidents. Determine corrective
actions to be taken in case of a communication failure.
● Especially, when a remote Simple Motion board is controlled, immediate action cannot be taken if a
problem occurs in the Simple Motion board due to a communication failure. To prevent this, configure
an interlock in the program, and determine corrective actions to be taken in case of a communication
failure.
● Do not write any data to the "system area" and "write-protect area" of the buffer memory in the Simple
Motion board. Doing so may cause malfunction of the Simple Motion board. For the "system area",
and "write-protect area", refer to the user's manual for the Simple Motion board.
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.
WARNING" and "
CAUTION".
CAUTION" may lead to serious
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