Contents Introduction..............................................................................................1 Read and Understand This Manual.........................................................2 Safety Precautions ..................................................................................5 Precautions for Safe Use.........................................................................10 Precautions for Correct Use ....................................................................12 Checking Before Unpacking....................................................................14 Revision History.......................................................................................15 About This Manual...................................................................................16 Chapter 1 Design 1-1 Wiring.......................................................................................................1-1 1-2 Terminals.................................................................................................1-3 1-3 Removing the Built-in Resistor ................................................................1-6 1-4 Connection...............................................................................................1-7 Chapter 2 Functions 2-1 DIP Switch Setting...................................................................................2-1 Chapter 3 Maintenance Operations 3-1 Precautions before Operation..................................................................3-1 3-2 When the Alarm Contact is Activated ......................................................3-2 3-3 When an Inverter Overvoltage Trip Occurs .............................................3-3 Chapter 4 Inspection and Maintenance 4-1 Inspection and Maintenance....................................................................4-1 4-2 Daily Inspection and Periodic Inspection.................................................4-2 4-3 Megger Test.............................................................................................4-4 4-4 Checking the Main Element.....................................................................4-5 4-5 Capacitor Life Curve................................................................................4-6 Chapter 5 Specifications 5-1 Standard Specification List ......................................................................5-1 5-2 Dimensional Drawing...............................................................................5-5 17