3.3
Main Circuit Wiring
This section gives information about the functions, specifications, and procedures necessary to safely and
correctly wire the main circuit in the drive.
NOTICE: Damage to Equipment. Do not energize and de-energize the drive more frequently than one time each 30 minutes. If
you frequently energize and de-energize the drive, it can cause drive failure.
Note:
Soldered wire connections can become loose over time and cause unsatisfactory drive performance.
◆
Motor and Main Circuit Connections
WARNING! Electrical Shock Hazard. Do not connect terminals R/L1, S/L2, T/L3, L/L1, N/L2, U/T1, V/T2, W/T3, -, +1, +2, B1, or
B2 to the ground terminal. If you connect these terminals to earth ground, it can cause damage to the drive or serious injury or
death.
Note:
The locations of terminals are different for different drive models.
A - DC bus terminal
B - Connect to the drive ground terminal.
C - Ground the motor case.
YASKAWA SIEPYEULA5001C LA500 Technical Manual
D - Three-Phase Motor
E - Use terminals R/L1, S/L2, and T/L3 for three-
F - Input Protection (Fuses or Circuit Breakers)
Figure 3.2 Wiring the Main Circuit and Motor
phase power supply input. Use terminals L/L1
and N/L2 for single-phase power supply input.
3.3 Main Circuit Wiring
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