Yaskawa SI-W3 - Manual (Page 19)

5 Installation Procedure
YASKAWA ELECTRIC TOBP C730600 56A 1000-Series Option SI-W3 Installation Guide 19
6. Prepare and connect the communication cables to the terminal block as shown in
Figure 7 and Figure 8 . Take particular precaution to ensure that each wire is
properly connected and wire insulation is not accidentally pinched into electrical
terminals.
WARNING! Fire Hazard. Tighten all terminal screws according to the specified tightening torque. Loose
electrical connections could result in death or serious injury by fire due to overheating electrical connections.
Tightening screws beyond the specified tightening torque may result in erroneous operation, damage to the
terminal block, or cause a fire.
NOTICE: Heat shrink tubing or electrical tape may be required to ensure that cable shielding does not come
into contact with other wiring. Insufficient insulation may cause a short circuit that can damage the option or
the drive.
Figure 7
Figure 7 Preparing Ends of Shielded Cable
Note: Separate communication cables from main circuit wiring and other electrical lines.
Figure 8
Figure 8 Preparing and Connecting Communication Cable Wiring
Insulation
Shield sheath Shield
Shield
(Insulate with electrical tape
or shrink tubing)
A SLD B
Preparing wire ends: Screwdriver blade size
about 5.5 mm (7/32”)
When not using
crimped insulated
sleeves
Pull back the shielding and lightly
twist the end with fingers, keeping
the ends from fraying.
LONWORKS drop line
(do not solder ends)
Blade depth of
0.4 mm or less
Blade width of
2.5 mm or less
Tightening torque:
0.22 to 0.25 N m
or 4.4 to 5.3 in-lbs
Terminal block CN1
Loosen the screws and
insert the wire into the
opening on the terminal block.
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