Mounting And Installation; Handling Precautions - Mitsubishi MELESEC-ST User Manual

10 MOUNTING AND INSTALLATION

10 MOUNTING AND INSTALLATION

10.1 Handling Precautions

This section explains the precautions for handling the modules (head module, slice
modules, base modules, etc.) of the MELSEC-ST system.
• Do not touch the terminals or connector while the power is on.
DANGER
• Make sure not to let foreign matters such as sawdust or wiring debris inside the
CAUTION
• Do not disassemble or modify the module.
• Do not directly touch the module's conductive parts.
• As the module case is made of resin, be careful not to drop it or expose it to strong
• Tighten the terminal screws within the specified torque.
• When disposing of this product, treat it as industrial waste.
• Use the module in an environment specifined in the general specifications of this
• Mount the module to a DIN rail securely.
• After mounting the head module and base module to the DIN rail, sandwich the
• Make sure to attach the rightmost part of the base module in order that terminals at
• Make sure to shut off all phases of the external power supply for the whole system
(1) Do not drop the module or give it a strong impact.
(2) Tighten the terminal block screws of the base module within the following ranges.
Base module terminal block screw
End bracket screw
10 - 1
This may cause electric shock or malfunction.
module.
This may cause fire, failure or malfunction.
This may cause failure, malfunction, injury or fire.
This may cause malfunction or failure in the module.
impact. This may damage the module.
Loose tightening may cause fire or malfunction.
Overtightening may damage the screws, resulting in short circuit or malfunction.
manual.
Failure to do so may cause electric shock, fire, malfunction, product deterioration or
damage.
Failure to do so may cause a fall, short circuit or malfunction of the module.
head module and the rightmost base module using end brackets to securely fix
them. Failure to do so may cause connection parts between modules may loosen
due to vibration or other reason.
the side of the base module will not be exposed. Failure to do so may cause
electric shock, short circuit or malfunction.
before mounting or removing the module. Failure to do so may cause the module
fail or malfunction.
Screw location
MELSEC-ST
Tightening torque range
0.27 to 0.80 N·m
0.50 to 0.60 N·m
10 - 1
10