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VCTF Cable Assembly
Section 3-3
!Caution
Always align the tool with the centers of the Covers and contact block to pre-
vent any bending or distortion when the connector is compressed. Uneven
compression can prevent proper communications.
7.
Check the assembled connector from the side and make sure that the
locks are completely engaged, as shown in the following diagram.
3-3
VCTF Cable Assembly
This section explains how to assemble VCTF cable components.
Commercially available 4-conductor VCTF cable and 2-conductor VCTF cable
can be used as communications cable in CompoBus/S Systems.
Note
1.
Lay the communications cables separately from high-voltage lines and
power lines to prevent noise interference.
2.
This section does not provide information on how to process shielded con-
nectors (i.e., Round Water-resistant Connectors or Sensor I/O Connec-
tors). Refer to the
Sensor Catalog
for information on how to process these
connectors.
3.
When using commercially available VCTF cable, determine which signal
wires will be used for the BD H, BD L, BS+, and BS
–
signals.
4.
When connecting 4-conductor VCTF cable to an assembly connector,
check that the conductors and signals are connected in the following pat-
terns.
3-3-1
Branching and Extending VCTF Cable
Use one of the following methods to branch or extend the VCTF cable.
• Commercially available relay terminal block (4-conductor/2-conductor
VCTF cable branch or extension)
• T-joint or Combination Connector (4-conductor VCTF cable branch or
extension)
Branching or Extension
Using Relay Terminal
Block
Install crimp terminals on each signal wire of the VCTF cable, and connect the
two-wire cable (for extension) or three-wire cable (for branching) to a commer-
cially available relay terminal block. Use crimp terminals on the signal wires
that match the terminal block being used.
Note
1.
Check that the signal wires are connected correctly. The Slave may be
damaged if the signal wires, particularly those for the power supply, are
connected to signal wires other than those specified.
Before Compression
After Compression
Locks
Conductor
color
Signal combination
Pattern 1
Pattern 2
Pattern 3
Pattern 4
White
BD H
BS+
BS–
BD L
Red
BS+
BS–
BD L
BD H
Green
BS–
BD L
BD H
BS+
Black
BD L
BD H
BS+
BS–