Mitsubishi Electric MELSEC iQ-F FX5UC Series, User Manual

Page: 233 / 282

14 PROCEDURES BEFORE OPERATION
14.2 Preliminary Inspection
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14
14.2
Preliminary Inspection
Incorrect connection of the power supply terminal, contact of the DC input wire and power supply wire, or short-circuiting of
output wires may result in serious damage.
Before supplying power, check that the power supply and ground terminals are connected correctly and input/output devices
are wired properly.
Dielectric withstand voltage test and insulation resistance test
The dielectric withstand voltage and insulation resistance test of the programmable controller should be measured in
accordance with the following procedure.
1.
Remove all input/output wires and power supply wires from the programmable controller.
2.
Connect a crossing wire to each of the programmable controller terminals (power supply terminal, input terminals, and
output terminals) except the ground terminal. For the dielectric withstand voltage of each terminal, refer to the general
specifications for the product (
 Page 82 GENERAL SPECIFICATIONS).
3.
Measure the dielectric withstand voltage and insulation resistance between each terminal and the ground terminal.
• Dielectric withstand voltage: 1.5kVAC or 500VAC for 1min (The dielectric withstand voltage varies depending on the
terminal.)
• Insulation resistance: 10M

or higher by 500VDC insulation resistance tester