Справочник Пользователя для Mitsubishi Electronics FX3S-30MT/ESS-2AD

FX

3S

 Series Programmable Controllers

User's Manual - Hardware Edition

14 Test Operation, Adjustment, Maintenance and Troubleshooting

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 applying power, check that the power supply and ground terminals are connected correctly and input/
output devices are wired properly.

Connect and disconnect the communication cable for the peripheral device.

Cut off the area shown in the left figure below of the peripheral device connector cover (main unit) using a
nipper, etc., and connect the peripheral device as shown in the right figure below.

The dielectric withstand voltage and insulation resistance test of the PLC should be measured in accordance with the following
procedures.
1) Remove all input/output wires and power supply wires from the PLC.
2) Connect a crossing wire to each of the PLC terminals (power supply terminal, input terminals and output terminals) except the

ground terminal. For the dielectric withstand voltage test of each terminal, refer to the generic specifications for the product. (refer to
Section 4.1)

3) Measure the dielectric withstand voltage and insulation resistance between each terminal and the ground terminal. 

Dielectric withstand voltage: 1.5 kV AC or 500 V for 1min (The terminals vary in dielectric withstand voltage.) 
Insulation resistance: 500 V DC/5 M

 or more

Positioning mark

Communication 

cable

Programming

connector

(RS-422)

Connection example

Communication

cable

Cut off the dotted

line area

Peripheral device

connecting connector

cover