Figure i.14 Main Circuit Protective Cover (Drive Models 2
o
0028 to 2
o
0081 and 4
o
0011 to 4
o
0077)
Attach the protective covers after wiring the main circuit terminals and p1, and n1 terminals on drive models 2
o
0104 to
2
o
0248 and 4
o
0096 to 4
o
0414.
A
B
A – Main circuit terminal
B – Terminals p1 and n1
Figure i.15 Protective Cover Example (Drive Model 2
o
0104)
u
Main Circuit Wire Gauges and Tightening Torque
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:
Wire gauge recommendations based on drive continuous current ratings using 75 °C (167 °F) 600 Vac vinyl-sheathed wire assuming ambient
temperature within 40 °C (104 °F) 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 82
for information on UL compliance.
The wire gauges listed in the following tables are Yaskawa recommendations. Refer to local codes for proper wire gauge
selections.
i.4 Electrical Installation
YASKAWA ELECTRIC TOEP C710636 11E Z1000U HVAC MATRIX Drive Quick Start Guide
23
