Electrical Installation
3
3.3 Main Circuit Wiring
YASKAWA SIEPC71061737B GA800 Drive Technical Reference 65
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. 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.
◆ 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 3.2 Wiring the Main Circuit and Motor
◆ Configuration of Main Circuit Terminal Block
Use Table 3.1 to find the correct main circuit terminal block figure for your drive.
Table 3.1 Configuration of Main Circuit Terminal Block
Model Shape of Terminal
*1
Figure
2004 - 2042, 4002 - 4023 European terminal Figure 3.3
2056, 4031, 4038 European terminal Figure 3.4
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