Panasonic KW4M User Manual

Table of ContentsCautions before using ............................................................................................................................ⅰChapter 1 Unit’s Features and Structure..............................................................................................11-1 Features................................................................................................................................................... 11-2 Unit’s Name and Part Numbers............................................................................................................... 11-2-1 Main unit......................................................................................................................................... 11-2-2 Dedicated Current Transformer (CT)............................................................................................. 11-2-3 Options........................................................................................................................................... 11-3 Measurement items ................................................................................................................................. 2Chapter 2 Parts Name and Working ....................................................................................................32-1 Parts Names ............................................................................................................................................ 32-2 Select Keys’ Functions ............................................................................................................................ 3Chapter 3 Display of each Value..........................................................................................................43-1 Instantaneous electric power / Integrated Electrical energy.................................................................... 43-2 Current..................................................................................................................................................... 53-3 Voltage..................................................................................................................................................... 53-4 Electricity Charge..................................................................................................................................... 63-5 Hour Meter............................................................................................................................................... 63-6 Count Value / Preset Value ..................................................................................................................... 7Chapter 4 Various Functions................................................................................................................84-1 LOCK mode ............................................................................................................................................. 84-2 CT Direction Notification (POWER Measurement).................................................................................. 84-3 Counter function (PULSE measurement)................................................................................................ 84-3-1 Operation mode ............................................................................................................................. 84-3-2 Change the Preset Value............................................................................................................... 8Chapter 5 Settings ...............................................................................................................................95-1 Operation procedure................................................................................................................................ 95-2 Setting Mode Explanation...................................................................................................................... 105-2-1 MODE (Select input method) ....................................................................................................... 105-2-2 MODE1 ........................................................................................................................................ 105-2-3 MODE2 ........................................................................................................................................ 135-2-4 MODE3 ........................................................................................................................................ 145-2-5 MODE4 ........................................................................................................................................ 15Chapter 6 Installation and Wiring .......................................................................................................166-1 Panel Cut-out dimensions ..................................................................................................................... 166-2 Panel mounting diagram........................................................................................................................ 166-3 Wiring..................................................................................................................................................... 176-3-1 Terminal arrangement.................................................................................................................. 176-3-2 Power measurement.................................................................................................................... 176-3-3 Pulse measurement ..................................................................................................................... 206-3-4 For Output connection ................................................................................................................. 216-3-5 For Wiring terminal....................................................................................................................... 216-3-6 RS-485 communication................................................................................................................ 216-3-7 Low Voltage Directive .................................................................................................................. 22Chapter 7 Communications ....................................................................................................................237-1 Communication Procedures .................................................................................................................. 237-2 Communication timing ........................................................................................................................... 237-3 MEWTOCOL communication ................................................................................................................ 247-3-1 Overview of MEWTOCOL-COM (RS-485) .................................................................................. 247-3-2 Data Register List ........................................................................................................................ 257-3-3 Error Codes.................................................................................................................................. 267-3-4 Command..................................................................................................................................... 267-5 MODBUS (RTU) Communication .......................................................................................................... 287-5-1 Overview of MODBUS (RTU) ...................................................................................................... 287-4-2 Data Register List ........................................................................................................................ 31