Mitsubishi Electric MELSEC A Series Manual page 7

[Cautions on Wiring]
• Switch off the external power supply before staring installation and wiring work
Failure to do so could result in electrical shocks and equipment damage.
• After installation and wiring is completed, be sure to attach the terminal cover before switching the power
ON and starting operation
Failure to do so could result in electrical shocks.
• Be sure to ground the FG and LG terminals, carrying out at least class 3 grounding work with a ground
exclusive to the PC.
Otherwise there will be a danger of electric shock and malfunctions.
• Carry out wiring to the PC correctly, checking the rated voltage and terminal arrangement of the product.
Using a power supply that does not conform to the rated voltage, or carrying out wiring incorrectly, will
cause fire or failure.
• Outputs from multiple power supply modules should not be connected in parallel. Failure to do so could
cause the power supply module to overheat, resulting in a fire or module failure.
• Tighten the terminal screws to the stipulated torque.
Loose screws will cause short circuits, fire, or malfunctions.
• Make sure that no foreign matter such as chips or wiring offcuts gets inside the module. It will cause fire,
failure or malfunction.
• Connectors for external connections should be crimped, pressure welded, or soldered in the correct
manner using the correct tools
For details regarding crimping and pressure welding tools, refer to the input/output module user's
manual.
A poor connection could cause shorts, fire, and erroneous operation.
DANGER
CAUTION