4 Electrical Installation
18
YASKAWA ELECTRIC
TOBP C730600 39A YASKAWA AC Drive-Option Card DI-A3 Installation Manual
◆
Wiring Procedure
When wiring the option card, wire ends should be prepared as shown in
Figure 7
. See
Wire
Gauges and Tightening Torque on page 17
to make sure the proper tightening torque is
applied to each terminal end.
Take particular precautions to ensure that each cable is properly connected, and that wire
insulation has not been accidentally inserted into the terminals.
NOTICE:
Insulation or tape may be required to ensure that shielded lines do not come into contact with
other wiring. Insufficient insulation may cause a short circuit that can damage the option card and the drive.
NOTICE:
Follow the tightening torque specifications in this manual for all terminal screws. Failing to do so
may keep the drive from functioning properly and could damage the terminal block.
Figure 7
Figure 7 Treating Terminal Ends for Shielded Line
Figure 8
Figure 8 Terminal Block Wiring
Insulation
Shield shearth (Insulate with tape)
Shield
Option Card
PG
FE/SD
Insulation
Shield sheath (Insulate with tape)
Shield
Option Card
External device
FE/SD
Blade depth of
0.4 mm or less
Avoid fraying wire stands
when stripping insulation
from wire.
Blade width of
2.5 mm or less
Strip length 5.5 mm
Terminal
block
Loosen screw to
insert wire.
Single wire or
stranded wire