Mitsubishi Electric GT15, Connection Manual

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A - 5
[WIRING PRECAUTIONS]
WARNING
● Be sure to shut off all phases of the external power supply used by the system before wiring.
Failure to do so may result in an electric shock, product damage or malfunctions.
CAUTION
● Please make sure to ground FG terminal and LG terminal and protective ground terminal of the GOT
power supply section by applying Class D Grounding (Class 3 Grounding Method) or higher which is
used exclusively for the GOT.
Not doing so may cause an electric shock or malfunction.
● Be sure to tighten any unused terminal screws with a torque of 0.5 to 0.8N•m.
Failure to do so may cause a short circuit due to contact with a solderless terminal.
● Use applicable solderless terminals and tighten them with the specified torque.
If any solderless spade terminal is used, it may be disconnected when the terminal screw comes
loose, resulting in failure.
● Correctly wire the GOT power supply section after confirming the rated voltage and terminal
arrangement of the product.
Not doing so can cause a fire or failure.
● Tighten the terminal screws of the GOT power supply section in the specified torque range.
Undertightening can cause a short circuit or malfunction.
Overtightening can cause a short circuit or malfunction due to the damage of the screws or the GOT.
● Exercise care to avoid foreign matter such as chips and wire offcuts entering the GOT.
Not doing so can cause a fire, failure or malfunction.
● The module has an ingress prevention label on its top to prevent foreign matter, such as wire offcuts,
from entering the module during wiring.
Do not peel this label during wiring.
Before starting system operation, be sure to peel this label because of heat dissipation.
● Plug the bus connection cable by inserting it into the connector of the connected unit until it "clicks".
After plugging, check that it has been inserted snugly.
Not doing so can cause a malfunction due to a contact fault.
● Plug the communication cable into the connector of the connected unit and tighten the mounting and
terminal screws in the specified torque range.
Undertightening can cause a short circuit or malfunction.
Overtightening can cause a short circuit or malfunction due to the damage of the screws or unit.
● Plug the QnA/ACPU/Motion controller (A series) bus connection cable by inserting it into the
connector of the connected unit until it "clicks".
After plugging, check that it has been inserted snugly.
Not doing so can cause a malfunction due to a contact fault.