5 Installation Procedure
18
YASKAWA ELECTRIC
TOBP C730600 79C YASKAWA AC Drive Option AO-A3 Installation Manual
4.
Prepare and connect the wire ends as shown in
and
. Refer to
Wire Gauges and Tightening Torques on page 28
to confirm that the proper
tightening torque is applied to each terminal. 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 cause erroneous operation, damage the
terminal block, or cause a fire.
NOTICE:
Heat shrink tubing or electrical tape may be required to ensure that cable shielding does not
contact other wiring. Insufficient insulation may cause a short circuit and damage the option or drive.
Figure 6
Figure 6 Prepare Ends of Shielded Cable
5.
Wire the customer-supplied circuit to the terminal block on the option according to
. Refer to
for the AO-A3 Option connection diagram. Refer to
for a detailed description of the option terminal functions.
Figure 7
Figure 7 Connect Cable Wiring
Insulation
Shield sheath
Option terminal
To customer
circuit
FE
(Insulate with electrical tape
or heat-shrink tubing)
AO
Option terminal block
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.
Wire crimping ferrule terminals
or not soldered ends
Loosen the screws and
insert the wire into the
opening on the terminal block.
Blade depth of
0.4 mm or less
Blade width of
2.5 mm or less
AO
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