Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 86)

u Main Circuit Terminal Functions
Table 3.1 Main Circuit Terminal Functions
Terminal Description Function Page
1/L1
Main circuit power supply input Connects line power to the bypass 76 2/L2
3/L3
1/T1
Drive output Connects to the motor 76 2/T2
3/T3
For 208 Vac: 100 Ω or less
For 480 Vac: 10 Ω or less
Grounding terminal 88
u Wire Gauge and Tightening Torque Specifications
Note: 1. For 0 to 100 A, use a minimum of 60 °C - 75 °C copper wire.
2. For above 100 A, use a minimum of 75 °C copper wire.
3. Wire gauge recommendations based on drive continuous current ratings using 75 °C 600 Vac vinyl-sheathed wire assuming ambient
temperature within 40 °C and wiring distance less than 100 m.
• 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
-3
• Refer to UL Standards Compliance on page 450 for information on UL compliance.
Table 3.2 Main Input Circuit Wiring Tightening Torques and Wire Gauges With Option PW
Bypass Model Z1D1 Standard Circuit Breaker With Option PW
208 Vac 480 Vac Current Rating (A) Wire Size Range (AWG) Tightening Torque (lb. in.)
– B011 25
14-10
or
8-3/0
50
or
120
– B014 30
– B021 45
D024 B027 60
D030 B034 70
– B040 80
D046 B052 110
D059 B065 125
D074 B077
150 D088 B096
D114 –
– B124
250
4-4/0 225
D143 B156
3/0-350 kcmil 225
D169 B180
D211 – 400
(1-2) x (2/0-500 kcmil) (1-2) x 442 – B240
600
– B032
– B361
(1-3) x (3/0-500 kcmil) (1-3) x 450
– B414
3.4 Input and Output Power Wiring Connections
86 YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual