User`s manual

4 - 2

4 INSTALLATION AND WIRING

(4) Be sure to install a power supply module on the main base unit and extension

base unit. Even if the power supply module is not installed, when the I/O modules

and intelligent function module installed on the base units are light load type, the

modules may be operated. In this case, because a voltage becomes unstable, we

cannot guarantee the operation.

(5) When using an extension cable, keep it away from the main circuit cable (high

voltage

and large current).

Keep a distance of 100mm or more from the main circuit.

(6) Be sure to fix a main base unit to the panel using fixing screws. Not doing so could

result in vibration that may cause erroneous operation.

Mount a main base unit in the following procedure.

(a) Fit the two base unit top mounting screws into the enclosure.

Panel

(b) Place the right-hand side notch of the base unit onto the right-hand side

screw.

Panel

(d) Fit the mounting screws into the holes at the bottom of the base unit, and

then retighten the all mounting screws.

(Note) : Mount a main base unit to a panel, with no module installed in the right-

end slot.

Remove the base unit after removing the module from the right-end slot.