3.6 Main Circuit Wiring
YASKAWA ELECTRIC
TOEP C710656 07A YASKAWA Power Regenerative Converter - D1000 Instruction Manual
59
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ical
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3
Figure 3.25
Figure 3.25 Installing Insulation Barriers
Figure 3.26
Figure 3.26 Locations of the Insulation Barriers
◆
Wire Gauges and Tightening Torque
Use the tables in this section to select the appropriate wires and crimp terminals.
Note: 1.
Wire gauge recommendations based on continuous current ratings using 75
°
C 600 Vac vinyl-sheathed wire assuming ambient
temperature within 40
°
C.
2.
Wire gauge recommendations for terminals R/L1, S/L2, T/L3 on 4A0270 to 4A0630 based on continuous current ratings using 105
°
C
600 Vac vinyl-sheathed wire assuming ambient temperature within 40
°
C.
3.
Use ter and - when connecting the drive to the converter.
y
Consider the amount of voltage drop when selecting wire gauges. Increase the wire gauge when the voltage drop is
greater than 2% of motor rated voltage. Ensure the wire gauge is suitable for the terminal block. Use the following
formula to calculate the amount of voltage drop:
Line drop voltage (V) =
×
wire resistance (
Ω
/km)
×
wire length (m)
×
current (A)
×
10
-3
y
UL Standards Compliance on page 240
for information on UL compliance.
The wire gauges listed in
and
are Yaskawa recommendations. Refer to local codes for proper wire
gauge selections.
Insulation Barrier
3
