YASKAWA SIEPC71061753A GA500 Technical Manual 453Electrical InstallationThis chapter gives how to wire the control circuit terminals, motor, and power supply of thedrive.3.1 Section Safety ........................................................................................................... 463.2 Electrical Installation............................................................................................... 483.3 Main Circuit Wiring .................................................................................................. 513.4 Main Circuit Terminal Block Wiring Procedure ................................................ 793.5 Control Circuit Wiring ............................................................................................. 823.6 Control I/O Connections ......................................................................................... 893.7 Connect the Drive to a PC ...................................................................................... 923.8 External Interlock ..................................................................................................... 933.9 Braking Resistor Installation................................................................................. 943.10 Drive Wiring Protection .......................................................................................... 963.11 Dynamic Braking Option, Motor Protection ...................................................... 973.12 Improve the Power Factor ...................................................................................... 993.13 Prevent Switching Surge......................................................................................1003.14 Decrease Noise .......................................................................................................1013.15 Protect the Drive during Failures .......................................................................1033.16 Wiring Checklist .....................................................................................................1053.17 Motor Application Precautions ...........................................................................107