Enclosures ................................................................................................................................ 130
EU Compliance with the EMC Directive ................................................................................. 131
Fuses ......................................................................................................................................... 131
Rules for Specific Applications ............................................................................................... 131
High Inertia Loads ................................................................................................................... 131
Frequent Starting .................................................................................................................... 131
Soft-Stopping ........................................................................................................................... 131
Reversing Configuration ......................................................................................................... 132
Replacement of Fluid Couplings ............................................................................................ 132
Two-speed Motor Applications .............................................................................................. 132
Overhauling Loads .................................................................................................................. 132
Application Table ..................................................................................................................... 132
Concepts and principles of fixed-speed induction motor starting and control. .............. 134
Introduction ............................................................................................................................. 134
The Induction Motor ............................................................................................................... 134
Starting Induction Motors ...................................................................................................... 137
Electro-Mechanical Methods Of Starting .............................................................................. 138
The Semiconductor Motor Controller ................................................................................... 140
Running Induction Motors ..................................................................................................... 141
Reliability Considerations ...................................................................................................... 142
Accessory Installation ................................................................................................... 144
Power Supply AGY-020 and AGY-021 ...................................................................................... 144
Connections ............................................................................................................................. 145
Control Terminal ..................................................................................................................... 145
Functions .................................................................................................................................. 145
3-Wire Control Using AGY-020/021 ......................................................................................... 146
2-Wire Control Using AGY-020/021 ......................................................................................... 146
Fan (AGY-030) ........................................................................................................................... 147
Remote Keypad (AGY-010) ...................................................................................................... 148
Network Connection ............................................................................................................... 148
Keypad Connection and Operation ............................................................................. 149
Operation ................................................................................................................................. 149
Initial Power-Up ....................................................................................................................... 149
Selecting Units To Monitor/Configure ................................................................................... 150
Keypad Installation ....................................................................................................... 152