
2.CABLE CONNECTION CONNECTION B-64014EN/03
- 134 -
2.5 ELECTRICAL NOISE COUNTERMEASURES
2.5.1 Separating Signal Lines
For signal line separation, refer to the description of noise protection
in the Connection Manual (Hardware) (B-63943EN) of CNC. The
wiring for the Ethernet cable is of group C.
2.5.2 Clamping and Shielding Cables
Clamp an Ethernet twisted pair cable according to the method
described below, as with cables that need to be shielded. Clamping
cables provides support and shielding and is extremely important to the
safe operation of the system. Never overlook cable clamping.
Peel off part of the jacket as shown in the figure to expose the outer
coating of the shield, and press this outer coating against the ground plate
with the clamp fixture.
The machine manufacturer must prepare the ground plate and install it as
follows:
Shield
Peel off jacket
Ground plate
Ground plate
Cable
Cable clamp
NOTE
To ensure the safe operation of the system, clamp
and shield the cables.
Connect the Ethernet board and hub with a twisted-pair cable. Shield
the cable with clamp fixtures.