YASKAWA
TOEPYAIGA8002B GA800 Drive Programming
621
4.4
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.
Note:
Soldered wire connections can become loose over time and cause unsatisfactory drive performance.
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Motor and Main Circuit Connections
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
terminal.
C - Ground the motor case.
D - Three-Phase Motor
E - Use R, S, T for input power supply.
F - Input Protection (Fuses or Circuit
Breakers)
Note:
The location of terminals are different for different drive models.
Figure 4.15 Wiring the Main Circuit and Motor
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Main Circuit Terminal Functions
Refer to
for the functions of drive main circuit terminals.