Omron CV500 Installation Manual page 67

Power Supply Units
WARNING
!
! Caution
54
PC operation may be adversely affected if the ground wire is shared with other
equipment or if the ground wire is attached to the metal structure of a building.
When using Expansion I/O Racks, the Racks must also be grounded to the
ground terminal. The same ground can be used for all Racks.
Screw (3.5 mm head with
self-raising pressure plate)
Use crimp terminals for wiring. Do not connect bare stranded wires directly to
terminal blocks. Use M3.5 screws for tightening crimp terminals.
7 mm max.
Tighten the screws on the terminal block to a torque of 0.8 N m.
20 mm max.
Tightening torque: 0.8 N m
Always attach crimp terminals to the ground lines to ensure proper connection.
Connecting loose wires can cause fires.
Ground the Power Supply Units separately from other devices.
After wiring the terminals check the terminal block to be sure it is firmly locked
in place.
Note If you suspect that grounding is the cause of operational errors, either discon-
nect the line ground and ground terminals and either ground the mounting plate
or try operating with no ground at all.
2
For grounding use 2 mm cable.
Be sure to keep the length of the
cable less than 20 meters.
7 mm max.
M3.5 screw
Section 3-4