Main Circuit Wiring; Motor And Main Circuit Connections; Main Circuit Terminal Functions - YASKAWA GA800 Programming Manual

Ac drive for industrial applications

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Table of Contents

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: The drive can fail if users frequently turn the drive ON and OFF with the MC on the power source side to Run and Stop the

drive. Incorrect operation can decrease the service life of the relay contacts and electrolytic capacitors. If you frequently use the

magnetic contactor on the power source side to Run and Stop the drive, it can cause drive failure.

Soldered wire connections can become loose over time and cause unsatisfactory drive performance.

WARNING! Electrical Shock Hazard. Do not connect terminals R/L1, S/L2, T/L3, U/T1, V/T2, W/T3, -, +1, +2, +3, 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.

A - DC bus terminal

B - Connect to the drive ground

C - Ground the motor case.

The location of terminals are different for different drive models.

for the functions of drive main circuit terminals.

YASKAWA TOEPYAIGA8002B GA800 Drive Programming

D - Three-Phase Motor

E - Use R, S, T for input power supply.

F - Input Protection (Fuses or Circuit

Figure 4.15 Wiring the Main Circuit and Motor