Table Of Contents - Panasonic KW4M User Manual

Eco-power meter

Table of Contents

Cautions before using ............................................................................................................................ⅰ

Chapter 1

Unit's Features and Structure..............................................................................................1

1-1 Features................................................................................................................................................... 1

1-2 Unit's Name and Part Numbers............................................................................................................... 1

1-2-1 Main unit......................................................................................................................................... 1

1-2-2 Dedicated Current Transformer (CT)............................................................................................. 1

1-2-3 Options........................................................................................................................................... 1

1-3 Measurement items ................................................................................................................................. 2

Chapter 2

Parts Name and Working ....................................................................................................3

2-1 Parts Names ............................................................................................................................................ 3

2-2 Select Keys' Functions ............................................................................................................................ 3

Chapter 3

Display of each Value..........................................................................................................4

3-1 Instantaneous electric power / Integrated Electrical energy.................................................................... 4

3-2 Current..................................................................................................................................................... 5

3-3 Voltage..................................................................................................................................................... 5

3-4 Electricity Charge..................................................................................................................................... 6

3-5 Hour Meter............................................................................................................................................... 6

3-6 Count Value / Preset Value ..................................................................................................................... 7

Chapter 4

Various Functions................................................................................................................8

4-1 LOCK mode ............................................................................................................................................. 8

4-2 CT Direction Notification (POWER Measurement).................................................................................. 8

4-3 Counter function (PULSE measurement)................................................................................................ 8

4-3-1 Operation mode ............................................................................................................................. 8

4-3-2 Change the Preset Value............................................................................................................... 8

Chapter 5

Settings ...............................................................................................................................9

5-1 Operation procedure................................................................................................................................ 9

5-2 Setting Mode Explanation...................................................................................................................... 10

5-2-1 MODE (Select input method) ....................................................................................................... 10

5-2-2 MODE1 ........................................................................................................................................ 10

5-2-3 MODE2 ........................................................................................................................................ 13

5-2-4 MODE3 ........................................................................................................................................ 14

5-2-5 MODE4 ........................................................................................................................................ 15

Chapter 6

Installation and Wiring .......................................................................................................16

6-1 Panel Cut-out dimensions ..................................................................................................................... 16

6-2 Panel mounting diagram........................................................................................................................ 16

6-3 Wiring..................................................................................................................................................... 17

6-3-1 Terminal arrangement.................................................................................................................. 17

6-3-2 Power measurement.................................................................................................................... 17

6-3-3 Pulse measurement ..................................................................................................................... 20

6-3-4 For Output connection ................................................................................................................. 21

6-3-5 For Wiring terminal....................................................................................................................... 21

6-3-6 RS-485 communication................................................................................................................ 21

6-3-7 Low Voltage Directive .................................................................................................................. 22

Chapter 7 Communications ....................................................................................................................23

7-1 Communication Procedures .................................................................................................................. 23

7-2 Communication timing ........................................................................................................................... 23

7-3 MEWTOCOL communication ................................................................................................................ 24

7-3-1 Overview of MEWTOCOL-COM (RS-485) .................................................................................. 24

7-3-2 Data Register List ........................................................................................................................ 25

7-3-3 Error Codes.................................................................................................................................. 26

7-3-4 Command..................................................................................................................................... 26

7-5 MODBUS (RTU) Communication .......................................................................................................... 28

7-5-1 Overview of MODBUS (RTU) ...................................................................................................... 28

7-4-2 Data Register List ........................................................................................................................ 31