YASKAWA GA800 Programming Manual page 630

4.5 Control Circuit Wiring
Note:
• Use shielded, twisted-pair wires and ground the shield to the ground terminal of the drive. Incorrect equipment grounding can
cause drive or equipment malfunction from electrical interference.
• Do not use control circuit wiring that is longer than 50 m (164 ft) to supply the analog frequency reference from a remote source.
If the control circuit wiring is too long, it can cause unsatisfactory system performance.
A - Loosen the screws and put the wire
into the opening on the terminal
block.
B - Wire with a crimp ferrule attached,
or unsoldered wire with the core
wires lightly twisted
C - Pull back the shielding and lightly
twist the end with your fingers to
keep the ends from fraying.
Note:
• Do not solder the core wire. Soldered wiring connections can become loose and cause the drive to malfunction.
• Tighten all terminal screws to the correct tightening torque. Connections that are too loose or too tight can cause incorrect
operation and damage to the drive. Incorrect connections can also cause death or serious injury from fire.
• Refer to Figure 4.25 for information to prepare terminal ends of the shielded wire.
• Prepare the wire ends of shielded twisted-pair wires as shown in
frequency setting potentiometer to set the frequency. Connect the shield to terminal E (G) of the drive.
A - Connect the shield to terminal E (G)
of the drive.
B - Sheath
3.
Put the cable through the clearance in the wiring cover.
630
Figure 4.24 Wiring Procedure for the Control Circuit
Figure 4.25 Prepare the Ends of Shielded Wire
Figure 4.26 Control Circuit Wiring
D - Remove approximately 5.5 mm
(0.21 in) of the covering at the end
of the wire when you do not use
crimp ferrules.
E - Blade width of 2.5 mm (0.1 in) or
less
F - Blade thickness of 0.4 mm (0.01 in)
or less
Figure 4.25 to use an analog reference from an external
C - Insulate with electrical tape or
shrink tubing.
YASKAWA TOEPYAIGA8002B GA800 Drive Programming