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4. INSTALLATION AND PRE-OPERATION SETTING PROCEDURE
4.2 Installation
4.2.1 Handling instructions
WARNING
CAUTION
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This section gives the handling instructions to be followed from unpacking to
installation of the high-speed counter module and its installation environment.
This section gives the handling instructions of the high-speed counter module.
Do not touch any terminal while power is on.
Failure to do so may cause malfunction.
Securely fix the module using the DIN rail or mounting screws and fully
tighten the mounting screws within the specified torque range.
Undertightening can cause a drop or misoperation.
Overtightening can cause a drop or misoperation due to damaged screws or
module.
Do not touch the conductive areas of the module directly.
Otherwise, the module can misoperate or fail.
Tighten the terminal screws within the specified torque range.
Undertightening the terminal screws can cause short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop,
short circuit, or malfunction.
Ensure that foreign matters such as chips and wire off-cuts do not enter the
module.
They can cause a fire, failure or misoperation.
Do not disassemble or modify the module.
This can cause a failure, misoperation, injury or fire.
Do not drop or apply strong shock to the module.
Failure to do so may damage the module.
Before mounting or dismounting the module to or from an enclosure, always
switch power off externally in all phases.
Otherwise, the module can fail or misoperate.
When disposing of the product, handle it as industrial waste.
(1) Tighten the terminal screws and fixing screws of the module within the following
ranges
Module mounting screw (M4 screw)
Terminal block terminal screw (M3.5 screw)
Terminal block mounting screw (M4 screw)
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Screw Location
4 - 2
MELSEC-A
Tightening Torque Range
0.78 to 1.18N･m
0.59 to 0.88N･m
0.78 to 1.18N･m
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