
B-64014EN/03 CONNECTION 2.CABLE CONNECTION
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2.6 CHECK ITEMS AT INSTALLATION
The following table lists check items at installation.
Check item Description Check
Ethernet cable
Use cables which satisfies all the following conditions:
1) With shielding
2) Twisted-pair cable
Type
3) Category 5
Length
The cable length shall be within 100 m (50 m for a movable cable recommended by
FANUC).
For a twisted-pair cable, the following pins shall be paired:
1) Pin No. 1 (TX+) – pin No. 2 (TX-)
Connection
2) Pin No. 3 (RX+) – pin No. 6 (RX-)
The Ethernet cables shall be bound separately from the following cables or covered
with an electromagnetic shield:
1) Group A: AC power lines, power lines for motors, and others
Separation
2) Group B: Current DC (24 VDC) and others
Shielding
For a shielded cable, the part of which outer coating is peeled off and exposed shall
be fixed to the ground plate with a clamp fixture.
Clamping
The ground plate shall be located as nearest to the CNC as possible (to make the
cable between the ground plate and CNC hard to be affected by noise).
Connectors Any cable connector shall not be pulled (to prevent poor contact of the connector).
Wiring No cable shall be laid under a heavy object.
Bending radius The bending radius shall be at least four times as long as the diameter of the cable.
For movable part For a movable part, a cable for a movable part shall be used.
CNC and cabinet
CNC grounding
The CNC ground (frame ground) shall be connected properly and the length of the
ground wire shall be within 300 mm.
Ground plate The ground plate shall be connected to the AC ground of the cabinet with wire.
Mounting The Ethernet board shall be inserted in a CNC slot properly.
HUB
Use conditions
The "cautions on use" of the hub shall be observed (A terminating resistor shall be
mounted properly if required).
Grounding The hub shall be grounded.
Cabinet The hub shall be installed in an enclosed cabinet.
Vibration The hub shall be installed so that it is not affected by vibration.
Bending radius The bending radius shall be at least four times as long as the diameter of the cable.