Main Circuit Wire Gauges And Tightening Torque - YASKAWA P1000 Quick Start Manual

Main Circuit Wire Gauges and Tightening Torque

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Use the tables in this section to select the appropriate wires and crimp terminals.
Gauges listed in the tables are for use in the United States.
Note: 1. Wire gauge recommendations based on drive continuous current ratings (ND) using 75 °C 600 Vac vinyl-sheathed wire assuming ambient
temperature within 40 °C and wiring distance less than 100 m.
2. Terminals +1, +2, +3, –, B1 and B2 are for connecting optional devices such as a DC link choke or braking resistor. Do not connect
other nonspecific devices to these terminals.
• 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) = 3 × wire resistance (Ω/km) × wire length (m) × current (A) × 10
• Refer to instruction manual TOBP C720600 00 for braking transistor option or braking resistor option wire gauges.
• Use terminals +1 and – when connecting a regenerative converter or a regen unit.
NOTICE: Do not connect a braking resistor to terminals +1 or –. Failure to comply may cause damage to the drive circuitry.
• Use terminals B1 and – when installing a CDBR-type braking unit on drives with built-in braking transistors (models 2A0004
to 2A0138, 4A0002 to 4A0072, and 5A0003 to 5A0052).
• Refer to UL Standards Compliance on page 244
Yaskawa recommends using closed-loop crimp terminals on all drive models. To maintain UL/cUL approval, UL Listed
closed-loop crimp terminals are specifically required when wiring the drive main circuit terminals on models 2A0110 to
2A0415, 4A0058 to 4A1200, and 5A0041 to 5A0242. Use only the tools recommended by the terminal manufacturer for
crimping.Refer to Closed-Loop Crimp Terminal Size on page 244
The wire gauges listed in the following tables are Yaskawa recommendations. Refer to local codes for proper wire gauge
selections.
Three-Phase 200 V Class
n
Drive Model
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
2A0004
2A0006
⊖, ⊕1, ⊕2
2A0008
B1, B2
2A0010
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
⊖, ⊕1, ⊕2
2A0012
B1, B2
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
⊖, ⊕1, ⊕2
2A0018
B1, B2
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
⊖, ⊕1, ⊕2
2A0021
B1, B2
YASKAWA ELECTRIC TOEP YAIP1U 01B YASKAWA AC Drive - P1000 Quick Start Guide
for information on UL compliance.
Table 3.3 Wire Gauge and Torque Specifications (Three-Phase 200 V Class)
Recomm. Gauge
Terminal
AWG, kcmil
for closed-loop crimp terminal recommendations.
Wire Range
AWG, kcmil
14 14 to 10
14 14 to 10
– 14 to 10
– 14 to 10
<1>
14 to 10
10
12 14 to 10
14 14 to 10
– 14 to 10
– 14 to 10
<1>
14 to 10
10
10 12 to 10
10 14 to 10
– 14 to 10
– 14 to 10
<1>
14 to 10
10
10 12 to 10
10 12 to 10
– 12 to 10
– 14 to 10
<1>
12 to 10
10
3.6 Main Circuit Wiring
-3
Screw Tightening Torque
Size N·m (lb.in.)
1.2 to 1.5
M4
(10.6 to 13.3)
1.2 to 1.5
M4
(10.6 to 13.3)
1.2 to 1.5
M4
(10.6 to 13.3)
1.2 to 1.5
M4
(10.6 to 13.3)
3
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