YASKAWA GA800 Technical Reference page 272

5.3 UL Standards
• If you use stranded wire, make sure that all of the wire strands are in the connection. Also, do not twist the stranded
wire too much. Incorrect connections can cause death or serious injury from fire.
• Put the wire all the way into the terminal block. Remove the insulation from the wire to the recommended wire
stripping length to fit the wire with insulation in the plastic housing.
• Use a torque driver, torque ratchet, or torque wrench for the screws. A slotted driver or a hex tool will be necessary
to wire the screw clamp terminal. Use applicable tools as specified by the recommended conditions in the product
manual.
• If you use power tools to tighten the terminal screws, use a low speed setting (300 to 400 r/min). Failure to obey can
cause damage to the terminal screws.
• Users can purchase wiring tools from Yaskawa. Contact Yaskawa or your nearest sales representative for more
information.
• Wire gauges on existing drive models to be replaced may not match wire gauge ranges on new drives. Contact
Yaskawa or your nearest sales representative for more information about the connection procedures.
• Do not tighten the terminal screws at an angle of 5 degrees or more. Failure to obey can cause damage to the
terminal screws.
• If you damage a terminal screw, contact Yaskawa or your nearest sales representative.
• Put the bit all the way into the hex socket to tighten the hex socket cap screw.
• When you tighten slotted screws, hold the straight-edge screwdriver perpendicularly to the screw. Make sure that
you align the end of the straight-edge screwdriver with the screw groove.
• After you connect the wires to the terminal block, lightly pull on the wires to make sure that they do not come out
of the terminals.
• Remove the correct section of the wiring cover to make wiring easier.
• Do not let strain on the wiring cause damage. Use a strain relief near the wiring to release the tension. Refer to
Figure 5.23 for an example.
A - Cable clamp
272
Figure 5.21 Permitted Angle
Figure 5.22 Tightening Slotted Screws
Figure 5.23 Strain Relief Example
YASKAWA SIEPC71061737D GA800 Drive Technical Reference