Safety Instructions - Mitsubishi Electric MELSECQ Series User Manual

Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
The instructions given in this manual are concerned with this product. For the safety instructions of the
programmable controller system, please read the CPU module User's Manual.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
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Note that the
Always follow the instructions of both levels because they are important to personal safety.
Please save this manual to make it accessible when required and always forward it to the end user.
[DESIGN INSTRUCTION]
Provide a safety circuit outside the programmable controller so that the entire system will
operate safely even when an external power supply error or programmable controller fault
occurs.
Failure to observe this could lead to accidents for incorrect outputs or malfunctioning.
(1) Configure an emergency stop circuit and interlock circuit such as a positioning control
upper limit/lower limit to prevent mechanical damage outside the programmable controller.
(2) The machine OPR operation is controlled by the OPR direction and OPR speed data.
Deceleration starts when the near-point dog turns ON. Thus, if the OPR direction is
incorrectly set, deceleration will not start and the machine will continue to travel. Configure
an interlock circuit to prevent mechanical damage outside the programmable controller.
(3) When the module detects an error, deceleration stop will take place.
Make sure that the OPR data and positioning data are within the parameter setting values.
Do not bundle or adjacently lay the control wire or communication cable with the main circuit or
power wire.
Separate these by 100mm (3.94in.) or more.
Failure to observe this could lead to malfunctioning caused by noise.
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SAFETY INSTRUCTIONS

(Always read these instructions before using this equipment.)
Indicates that incorrect handling may cause hazardous conditions,
DANGER
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
CAUTION
resulting in medium or slight personal injury or physical damage.
CAUTION level may lead to a serious consequence according to the circumstances.
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DANGER
!
CAUTION
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