5.3 Main Circuit Wiring
5.3
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.
◆
Main Circuit Terminal Functions
Refer to
Table 5.1
for the functions of drive main circuit terminals.
502
D - Three-Phase Motor
E - Use terminals R/L1, S/L2, and T/L3 for three-
F - Input Protection (Fuses or Circuit Breakers)
Figure 5.2 Wiring the Main Circuit and Motor
phase power supply input. Use terminals L/L1 and
N/L2 for single-phase power supply input.
YASKAWA TOEPYAIGA5002A GA500 Programming