Panasonic KW8M Installation Manual

KW8M Eco-POWER METER

【KW8M (AKW8111)】

Basic setting to measure by Eco-POWER METER

When wiring the main unit and the current transformer (CT) and setting the basic setting after power on, you can measure the power The basic setting of MODE1 is necessary to measure. In order to use the other functions, the settings of the each parameter are necessary.

What to do

Measure Power

Measure

ON-time and

OFF-time

Output Alarm

Collect data

via RS485

Count pulse

output from

other device

Mount / Connection

Connect the current transformer (CT)

Wire the main unit

Wire output

line

Wire

communication

Wire input

line

Set the basic settings (MODE1)

Power on the main unit

p.15

pulse measurement

p.22

Settings

Set the parameter for

Set alarm

output

(MODE1)

p.15

Set

communication

setting

(MODE3)

p.23

Check measured

data with power

monitoring mode

Check measured

time with power

monitoring mode

Check measured

Check count value

monitoring mode

How to use

6.2

Check alarm

output

5.3

data via

communication

device

with power

6.2

KW8M Eco-POWER METER

【KW8M with log function (AKW8111H)】

Basic setting to measure by Eco-POWER METER

What to do

Measure Power

Measure

ON-time and

OFF-time

Output Alarm

Collect data

via RS485

Log data

Read out

log data

Count pulse

output from

other device

＊Be sure to set calendar timer (clock) and

Mount / Connection

Connect the current transformer (CT)

Wire output

line

Wire the main unit

Wire

communication

Prepare

the tool

software

Wire input

line

Set the basic settings (MODE1)

Power on the main unit

p.15

Set the parameter for

pulse measurement

p.22

initialize memory of main unit before measuring.

Settings

Check measured

data with power

monitoring mode

Initialize memory of main unit (MODE4) and set calendar timer (

Check measured

time with power

monitoring mode

Set alarm

output

(MODE1)

communication

setting

(MODE3)

Set log setting

Set

p.15

Check measured

p.23

Check log data

with option mode

(MODE4)

p.26

＊

) (MODE5)

p.26

p.28

Set log

setting

(MODE4)

p.26

After measuring,

read out by using

Check count value

monitoring mode

How to use

6.2

Check alarm

output

5.3

data via

communication

device

6.3

software

with power

6.2

KW8M Eco-POWER METER

Cautions for Your Safety

Read the manual carefully before installing, running and maintenance for proper operation.

Before using, master the knowledge of the equipment, safety information and all of other

notes.

This manual uses two safety flags to indicate different levels of danger.

WARNING

●Always take precautions to ensure the overall safety of your system, so that the whole

system remains safe in the event of failure of this product or other external factor.

●Do not use this product in areas with inflammable gas. It could lead to an explosion.

●Exposing this product to excessive heat or open flames could cause damage to the

lithium battery or other electronic parts.

CAUTION

●To prevent abnormal exothermic heat or smoke generation, use this product at the

values less than the maximum of the characteristics and performance that are assured in these specifications.

●Do not dismantle or remodel the product. It could lead to abnormal exothermic heat or

smoke generation.

●Do not touch the terminal while turning on electricity. It could lead to an electric shock.

●Use the external devices to function the emergency stop and interlock circuit.

●Connect the wires or connectors securely. The loose connection might cause abnormal

exothermic heat or smoke generation.

●Do not allow foreign matters such as liquid, flammable materials, metals to go into the

inside of the product. It might cause exothermic heat or smoke generation.

●Do not undertake construction (such as connection and disconnection) while the power

supply is on.

●Do not use at secondary side circuit of inverter. It might cause exothermic heat or

damage.

A handling error could cause serious physical injury to an operator and in the worst case could even be fatal.

A handling error could cause serious physical injury to an operator or damage to the equipment.

●Panasonic Electric Works, Co., Ltd. owns the copyright of this manual.

●We stiffly refuse the reproduction of without permission from this manual.

●Modbus Protocol is a communication protocol that the Modicon Inc.developed for PLC.

●Other company names and the product names are the trademarks or registered

trademarks of each company.

KW8M Eco-POWER METER

Introduction

Thank you very much indeed for purchasing “KW8M Eco-POWER METER”. In this manual, we explain the usage of “KW8M Eco-POWER METER” in detail. Please use it correctly after understanding the content enough.

KW8M Eco-POWER METER

Table of Contents

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

Chapter 1 Unit’s Features and Structure

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

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

2-2 Select Keys’ Functions ............................................................................................................................ 3

Chapter 3 Wi

3-1 Main unit terminal arrangement............................................................................................................... 4

3-2 Wiring Diagrams ...................................................................................................................................... 5

3-3 For input connection ................................................................................................................................ 9

3-4 For Output connection ............................................................................................................................. 9

3-5 RS485 Communication.......................................................................................................................... 10

3-6 Low Voltage Directive............................................................................................................................ 11

Chapter 4 S

4-1 Operation procedure.............................................................................................................................. 12

4-2 Setting Mode Explanation...................................................................................................................... 15

4-2-1 MODE1 ........................................................................................................................................ 15

4-2-2 MODE2 ........................................................................................................................................ 22

4-2-3 MODE3 ........................................................................................................................................ 23

4-2-4 MODE4 ........................................................................................................................................ 26

4-2-5 MODE5 ........................................................................................................................................ 28

Chapter 5 Various Functions

5-1 LOCK mode ........................................................................................................................................... 29

5-2 Display while communication ................................................................................................................ 29

5-3 Display when pulse output..................................................................................................................... 29

5-3-1 Output depends on integrated electric power.............................................................................. 30

5-3-2 Instantaneous electric power alarm............................................................................................. 30

5-3-3 Current alarm ............................................................................................................................... 30

5-3-4 Stand-by power alarm.................................................................................................................. 30

5-3-5 Output depends on count value................................................................................................... 30

5-4 Counter function .................................................................................................................................... 31

Chapter 6 Display of each Value

6-1 Working of Monitor Display.................................................................................................................... 32

6-2 Outline for the Working of Power Monitoring Mode Display.................................................................. 33

6-2-1 Integrated Electric power ............................................................................................................. 34

6-2-2 Instantaneous Electric power....................................................................................................... 35

6-2-3 Current ......................................................................................................................................... 35

6-2-4 Voltage......................................................................................................................................... 36

6-2-5 Electricity Charge......................................................................................................................... 37

6-2-6 Power factor................................................................................................................................. 37

6-2-7 Frequency .................................................................................................................................... 38

6-2-8 Hour meter ................................................................................................................................... 38

6-2-9 Counter ........................................................................................................................................ 39

6-3 Outline for the Working of Option Mode Display (only for AKW8111H) ................................................ 41

6-3-1 Monthly integrated electric power (only for AKW8111H)............................................................. 42

6-3-2 Daily integrated electric power (only for AKW8111H) ................................................................. 43

6-3-3 Hourly integrated electric power (only for AKW8111H) ............................................................... 44

6-3-4 Integrated electric power (active) for arbitrary period (only for AKW8111H)............................... 45

6-3-5 Calendar Timer (only for AKW8111H) ......................................................................................... 45

ring ......................................................................................................................................4

ettings..................................................................................................................................12

..................................................................................................................29

............................................................................................................32

..................................................................................................1

.........................................................................................................3

KW8M Eco-POWER METER

Chapter 7 MEWTOCOL Communications

7-1 Communication Procedures .................................................................................................................. 46

7-2 Communication timing ........................................................................................................................... 46

7-3 MEWTOCOL Communication ............................................................................................................... 47

7-3-1 Overview of MEWTOCOL-COM (RS485).................................................................................... 47

7-3-2 Data Register List ........................................................................................................................ 48

7-3-3 Error Codes.................................................................................................................................. 51

7-3-4 Command..................................................................................................................................... 51

7-4 MODBUS (RTU) Communication .......................................................................................................... 53

7-4-1 Overview of MODBUS (RTU) ...................................................................................................... 53

7-4-2 Data Register List ........................................................................................................................ 56

Chapter 8 Battery for Memory Backup (only for AKW8111H)

8-1 Setting before using............................................................................................................................... 61

8-2 How to Replace Battery......................................................................................................................... 61

8-3 How to Remove ..................................................................................................................................... 62

8-4 How to Mount......................................................................................................................................... 62

Chapter 9 Specifications.........................................................................................................................

9-1 Main unit ................................................................................................................................................ 63

9-2 Input Specifications ............................................................................................................................... 64

9-2-1 Electric power input...................................................................................................................... 64

9-2-2 Pulse input ................................................................................................................................... 64

9-3 Pulse output (Transistor output) Specifications..................................................................................... 65

9-4 Communication Specifications .............................................................................................................. 65

9-5 Option Specifications (only for AKW8111H).......................................................................................... 66

9-6 Dedicated Current Transformer Specifications ..................................................................................... 67

9-7 Self-diagnostic function ......................................................................................................................... 67

9-8 Power Failure Memory .......................................................................................................................... 67

Chapter 10 Mounting

10-1 Dimensions .......................................................................................................................................... 68

10-1-1 Main unit..................................................................................................................................... 68

10-1-2 Dedicated CT ............................................................................................................................. 69

10-2 Panel cutout......................................................................................................................................... 71

10-3 Panel mounting.................................................................................................................................... 71

..............................................................................................................................68

..............................................................................................46

.................................................................61

KW8M Eco-POWER METER

Cautions before using

■ Installation environment

◇Do not use the Unit in the following environments.

・Where the unit will be exposed to direct sunlight and where the ambient temperature is outside

the range of -10 to 50 C.

・Where the ambient humidity is outside the range of 30 to 85 % RH (at 20℃ non-condensing)

and where condensation might occur by sudden temperature changes

・Where inflammable or corrosive gas might be produced

・Where the unit will be exposed to excessive airborne dust or metal particles

・Where the unit will be exposed to water, oil or chemicals

・Where organic solvents such as benzene, paint thinner, alcohol, or strong alkaline solutions

such as ammonia or caustic soda might adhere to the product

・Where direct vibration or shock might be transmitted to the product, and where water might wet

the product

◇Please use the Unit according to the specifications described in this manual. Otherwise, it

may malfunction or cause fire and an electric shock.

・Connect to the power supply in compliance with the rating.

・Refer to the wiring diagram to ensure proper wiring for the power supply, input and output.

・Do not perform wiring or installation with a live line. It may also lead to circuit burnout or fire by

way of the secondary CT side opening.

・Do not add voltage and current to an output terminal from outside.

■ Installation

・Installation and wiring must be performed by expert personnel for electrical work or electric

piping.

・The power supply terminal and voltage input terminal of the main unit is common. Therefore if

additional noise effects the power supply line, incorrect measurements may result.

・Eco-POWER METER is designed to be used in a control panel.

･As to measurement

If there is some distortion by harmonic or waveform, it may not measure correctly.

Please check with the actual system before adopts it.

■ Static electricity

・Discharge static electricity touching the grounded metal etc. when you touch the unit.

・Excessive static electricity might be generated especially in a dry place.

■ Cleaning

・Wipe dirt of the main unit with soft cloth etc. When thinner is used, the unit might deform or be

discolored.

■ Power supply

・Connect a breaker to the voltage input part for safety reasons and to protect the device.

The breaker that connects to the voltage input part must arrange at the position easily reached, and display shows it is the breaker of the equipment.

・Do not turn on the power supply or input until all wiring is completed.

■ Before power on

Please note the following points when turning on power at the first time.

・Confirm there are neither wiring rubbish nor especially an electrical conduction when installed.

・Confirm neither the power supply wiring, the I/O wiring nor the power-supply voltage are wrong.

・Tighten the installation screw and the terminal screw surely.

・Use an electric wire applicable to the rated current.

KW8M Eco-POWER METER

Chapter 1 Unit’s Features and Structure

1-1 Features

■With KW8M Eco-POWER METER, electrical power (voltage, current, etc.), power factor, frequency,

etc are measured using AC voltage and AC current input via one of the following systems: single-phase two-wire system, single-phase three-wire system, three-phase three-wire system or

three-phase four-wire system. This also works as an hour meter, that is measured power-on or power-off time, and as a counter that is for pulse output equipment like flow meter.

■Eco-POWER METER is designed chiefly to manage saving energy. It is neither intended nor

can it be legally used for billing.

1-2 Unit’s Name and Part Numbers

1-2-1 Main unit

Model No

AKW8111 Not available

AKW8111H Available

(Common)

Phase and Wire

system

・Single-phase two-wire ・Single-phase three-wire ・Three-phase three-wire ・Three-phase four-wire

1-2-2 Dedicated Current Transformer (CT)

Rated primary current Model No

50A 100A AKW4802 250A AKW4803 400A AKW4804

1-2-3 Options

Product name Model No Remarks

Terminal cover AKT8801 -----

Log function

Power supply

100-240V

50/60Hz

AKW4801

Measured

voltage input

・400VAC ・100/200VAC

Measured

current input

・ 50A ・100A ・250A ・400A

Current

transformer

Dedicated CT

type (5A,50A(common) /100A/250A/400A)

Terminal

type

Screw

Terminal

(M3 +/−

screw)

Spare Battery *1) AFC8801 Required to back up memory and calendar

*1) This is attached to AKW8111H when shipped.

KW8M Eco-POWER METER

1-3 Measurement items

Item Unit Data range

Integrated electric

power

Instantaneous

electric power

Active kWh 0.00 to 9999999.9

Reactive kvarh 0.00 to 9999999.9

Apparent kVAh 0.00 to 9999999.9

Active kW 0.00 to 999999.99

Reactive kvar -99999.99 to 0.00 to 999999.99

Apparent kVA 0.00 to 999999.99

CT1 A 0.0 to 6000

Current

Voltage

Electricity charge * 0.00 to 99999999

Power Factor

Frequency Hz 47.5 to 63.0

Hour meter

Pulse counter 0 to 99999999

*Eco-POWER METER is designed chiefly to manage saving energy.

It is neither intended nor can it be legally used for billing.

CT2 A 0.0 to 6000

CT3 A 0.0 to 6000

Between P1-P0 V 0.0 to 9999

Between P2-P0 V 0.0 to 9999

Between P3-P0 V 0.0 to 9999

Unit display

Communication

ON-time

OFF-time

hour 0.0 to 99999.9

0.00 to 1.00 (LEAD: Leading phase, LAG: lagging phase)

-1.00 to 0.00 to 1.00

(Within the range of phase angle θ=-90 to 0 to 90 degree)

KW8M Eco-POWER METER

Chapter 2 Parts Name and Working

2-1 Parts Names

①Display indicator ・Lighting or Blinking according to the display

②LOCK indicator ・Lighting while in lock mode

③T/R indicator ・Blinking while communication

④OUT indicator ・Lighting when pulse output

⑤Display each value ・Display each measured value

・Display each setting value

⑥MODE Key ⑦SET Key ⑧ITEM / △ Key ⑨SHIFT / ▽ Key ⑩Left / Right ( / ) Keys ⑪OPTION Key

⑤

② ③ ④

①

⑥

⑦

⑨ ⑧

⑫START/STOP Key

2-2 Select Keys’ Functions

Key Functions

<MODE>

<SET>

ITEM

SHIFT

< Left / Right ( / )>

<SET>

(continuous press 3-sec)

△

▽

・Use to select mode ・Use to set each value entered ・To select measured display

・To shift each mode ・To change each setting value ・To select measured display ・To shift each mode ・To change each setting value

･To change each setting value

・To reset the measured value ・All keys locked

・Release lock mode while in lock mode ・To shift power monitoring mode and option mode (Only AKW8111H)

⑪

⑫

⑩

・To start and stop measuring integrated electric power (active)

for arbitrary period. (from press this key until press it again)

(Only AKW8111H)

KW8M Eco-POWER METER

Chapter 3 Wiring

3-1 Main unit terminal arrangement

Function No. Function

Power

Supply

Pulse

Input

Pulse

Output

RS485

N.C.

＋

− ＋

−

① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩

⑪ ⑫ ⑬ ⑭

P1 P0 P2 P3

Measured

voltage

input

⑮ CT1 (＋) ⑤ ⑮ ⑯ CT1 (−) ⑥ ⑯ ⑰ CT2 (＋) ⑦ ⑰ ⑱ CT2 (−) ⑧ ⑱

Measured

input

⑲ CT3 (＋) ⑨ ⑲ ⑳ CT3 (−)

The input voltage to each terminal is as follows.

Terminal Phase and wire Terminal Input voltage

Back view

① ⑪ ② ⑫ ③ ⑬ ④ ⑭

⑩

⑳

Operating

power supply

Measured

voltage input

Single-phase,

two-wire

Single-phase,

two-wire

Single-phase,

three-wire

Three-phase,

three-wire

Three-phase,

four-wire

②−③ 100-240VAC (100 - 240V〜)

⑪−⑫ ⑪−⑫−⑬ ⑪−⑫−⑬

⑪−⑫−⑬−⑭

0-440VAC ( 0-440V〜) 0-220VAC ( 0-220V〜：3W) 0-440VAC ( 0-440V 3〜) 0-254VAC ( 0-254V 3N〜)

(Line voltage)

(Phase voltage)

(Line voltage)

(Phase voltage)

Caution for Wiring

1) Terminal fastening torque should be 0.6 to 1.0N･m.

2) This has no built-in power switch, circuit breaker for power supply part. To protect the device, it is necessary to install power switch and circuit breaker in the power supply circuit.

And this has no built-in power switch, circuit breaker or fuse for measured voltage input parts. Therefore it is necessary to install them in the circuit near this unit.

3) The terminal block of KW8M is designed to be wired from left. Insert wires to the terminal from the

left and fasten with terminal screws.

4) In case using insulation sleeve, use an insulation sleeve applicable to M3 screw. Fastening torque

should be 0.6 to 1.0N･m. (Refer to the below.)

5) We recommend a wire with the cross section of 0.75 to 1.25mm

for power supply line and measured

voltage input line.

6) Use flame-resistant cable for each wiring.

KW8M Eco-POWER METER

3-2 Wiring Diagrams

・Please connect a breaker to power supply and voltage input part for safety reasons and to protect the

device.

・Grounding the secondary side of VT and CT is not necessary with low-voltage circuit.

Single-phase two-wire system One current transformer (CT) is required to measure single-phase two-wire system.

Single-phase three-wire Two CTs are required to measure single-phase three-wire system. Wire by diagram of single-phase 2-wire system when measure load using R-S with single-phase 3-wire system.

KW8M Eco-POWER METER

Three-phase three-wire system Two CTs are required to measure three-phase three-wire system.

Three-phase four-wire system Three CTs are required to measure three-phase four-wire system.

KW8M Eco-POWER METER

◇VT (Voltage transformer) is required when you measure a load with voltage 440V or more system.

Use VT with those secondary rating is 110V.

Grounding the secondary side of VT and CT is not necessary with low-voltage circuit.

Single-phase two-wire system

11 12 13

L N

Single-phase, three-wire

14 15 16

CT1

CT2

No.13,14,17〜20 are not wired.

No.14, 19, 20 are not wired.

Three-phase, three-wire system

Three-phase, four-wire system

R S T N

CT1

CT2

11 12 13

14 15 16 17 18

CT1

CT2

No.14, 19, 20 are not wired.

CT3

KW8M Eco-POWER METER

◇How to attach the Current Transformer (CT) ・One CT is required to measure 1P2W system. Two CTs are required to measure a 1P3W system or

3P3W system. Three CTs are required to measure 3P4W system. Using all CTs should be the same.

・Check beforehand that the thickness of the electric wire is smaller than the through-hole of the CT. ・When connecting CT, connect the secondary side to the terminal of the main unit first, and after that

wire the primary side to a load electric wire. Incorrect order might cause an electric shock or break CT.

・The CT has polarity. Wire correctly according to the K and L marks. Wrong direction can’t measure

correctly.

・When closing CT, check that there is no foreign materials on the divided face. And make sure it is

closed securely once the wire is in place; if not the measurement value will be not accurate.

・When CTʼs cable is extended, it is possible to extend up to about 10m with the cable of AWG#22 or

more cross section under the environment without noise at all. Please use the thick cable as much as possible.

◇To connect CT with secondary current 5A

How to connect the unit to measure by combination with existing commercial CT

(1) Select 5A at CT type setting mode (CT-T). (2) Set the primary current of measured commercial CT (secondary current 5A) at primary side

current of CT setting mode (CT-1). < ex > If the measured CT is 400A/5A, set to ”400”.

(3) Clamp the dedicated CT for 5A (AKW4801), which is connected to the main unit first, to

secondary side of the commercial CT. CT direction (K→L) should be set for the commercial CT

direction.

(Connection example)

Power supply

Breaker

mmeter etc.

Eco-POWER METER

Secondary current

Commercial CT

L K

Dedicated CT (For 5A)

AKW4801

Load

KW8M Eco-POWER METER

3-3 For input connection

◇Input connection ・Contact input

Use highly reliable metal plated contacts. Since the contact’s bounce time leads directly to error in the count value, use contacts with as short a bounce time as possible. In general, select 30Hz for max.counting speed.

・Non-contact input (Transistor input)

Connect with an open collector. Use the transistor with the following specifications.

=20V min. IC=20mA min. I

CEO

=6μA max

CBO

Use transistors with a residual voltage of less than 1.5V when the transistor is ON.

※Short-circuit impedance should be less than 1kΩ. (When the impedance is 0Ω, drain current is approx. 7mA.)

Open-circuit impedance should be more than 100kΩ.

・Input wiring

Please wire as short as possible by using a shielded wire or a metallic electric wire tube individually.

(Caution)

Operating power supply input part and measured voltage input are not insulated to pulse input parts. So the input equipment must have the power supply transformer in which the secondary side is not grounded with the primary and secondary sides insulated, in order to prevent interference of the power supply circuit when connecting the external input circuit. Be sure not to use an auto-transformer.

Operating po wer supply

Measured voltage input

(Fig.A)

Good example

Insulated

transformer

（−）

(＋)

Input equipment

(sensor etc.)

Eco-POWER

METER

Operating power supply

Measured voltage input

Insulated

transformer

Eco-POWER

METER

Do not ground the secondary side.

（−）

(Fig.B) No Good example

Input equipment

(＋)

(sensor etc.)

Operating power supply

Measured voltage input

Do not use an auto-transformer.

Auto transformer

Eco-POWER

METER

(＋)

（−）

Input equipment

(sensor etc.)

3-4 For Output connection

Since the transistor output is insulated from the internal circuit by a photo-coupler, it can be used both as a NPN output and PNP (equal value) output.

Eco-POWER METER

NPN output

Pulse

（+）

Power supply for Load

Load

Pulse

（-）

PNP output

Eco-POWER METER

Pulse

（+）

Load

Power supply for Load

Pulse

（-）

KW8M Eco-POWER METER

3-5 RS485 Communication

・When using shielded cable for the RS485 transmission line, ground one end.

Use a class D dedicated earth for grounding. Do not share a ground with other earth lines. (Fig.1)

・Be sure to connect with daisy chain the RS485 transmission line between each unit.

Do not use a splitter. (Fig.2)

・With a terminal station, RS485 (E) (No.10) and RS485 (-) (No.9) should be shorted.

(Fig.1)

To RS-485 device

Sheilded cable

(Fig.2)

Correct wiring

○

Incorrect wiring

Recommended Cable Use the transmission cables shown below for Eco-POWER METER RS485 communication system.

Conductor Insulator

Cable

Twisted-

Size

1.25 mm (AWG16)

or more

Resistance

(at 20℃）

Max.16.8Ω/km

pair

with shield

0.5 mm

(AWG20)

Max.33.4Ω/km

or more

Max.25.1Ω/km

VCTF

0.75 mm (AWG18)

or more

Cable Section

Shield

Twisted-pair

with shield

Conductor Insulator

Eco-POW ER METER

General station

(＋) (＋)

(−)(E) (−)(E)

Sheilded cable

Class D grounding Class D grounding

Terminal Terminal

Eco-POWER METER

Terminal station

Cable

Material Thickness

Polyethylene

PVC

Max.

0.5 mm

Max.

0.5 mm

Max.

0.6 mm

diameter

Approx.

8.5 mm

Approx.

7.8 mm

Approx.

6.6 mm

Notes

Jacket

1) Use shielded type twist cables.

2) Use only one type of the transmission cables.

2) Do not mix different types of the cables.

3) Use twist pair cables under a bad noise environment.

Shorted

Applicable cable

HITACHI KPEV-S

1.25 mm

×1P

Belden Inc. 9860 HITACHI KPEV-S

0.5 mm

×1P

Belden Inc. 9207 VCTF

0.75 mm

×2C

(JIS)

VCTF

Jacket

Conductor Insulator

KW8M Eco-POWER METER

3-6 Low Voltage Directive

When using in the application confirming to EN61010-1/IEC61010-1, make sure to satisfy the following conditions. (1) Pulse output part and communication part secure only basic insulation. In order to secure reinforced

(double) insulation demanded by EN 61010-1/ IEC61010-1, secure basic insulation or more with load side for output part and secure basic insulation or more with communication system side for communication part.

(2) Provide the voltage input part with an EN60947-1 or EN60947-3 compliant circuit breaker.

The breaker that connects to the voltage input part must arrange at the position easily reached, and display shows it is the breaker of the equipment.

(3) Use a wire with basic insulation or more for a wire cramped (or connected) CT.

【Environmental conditions】

・Overvoltage category Ⅱ, Pollution degree 2 ・Indoor use ・An ambient temperature of –10 to 50℃ ・An ambient non-condensing humidity of 35 to 85%RH (at 20℃) ・Altitude of 2000m or less

【Mount the product in a place with】

・A minimum of dust, and an absence of corrosive gases ・No flammable, explosive gasses ・Few mechanical vibrations or shocks ・No exposure to direct sunlight ・No large capacity electromagnetic switches or cables through which large current is flowing

KW8M Eco-POWER METER

Chapter 4 Settings

4-1 Operation procedure

Mode 1…Mode for setting each parameter for power measurement

Monitor (Display when power on)

(Mode 1)

Setting mode

<MODE>

(Mode 2) (Mode 3) (Mode 4)

(Mode 4) ＊1

<SET>

Phase/Wire system setting mode

SYST

CT type setting mode

<SET>

CT-T

Voltage range setting mode

VT setting mode

When select

other than “5A”

<SET>

VOLT

<SET>

Current for time

measurement setting mode

Cutoff current setting mode

<SET>

HM-A

<SET>

When select

“5A”

<SET>

CUTA

Unit for pulse output setting mode

<SET>

PL-P

When select

“Values”

<SET>

When select “AL-P”

<SET>

Power alarm setting

mode

AL-P

Electricity rate setting mode

When select “AL-C”

Current alarm setting

mode

AL-C

<SET>

RATE

<SET>

Monitor

Press <MODE> to return Monitor.

Refer to the next page.

Primary side current of

CT setting mode

CT-1

When select “AL-S”

<SET>

Stand-by alarm setting

mode 1

ALS1

<SET>

Stand-by alarm setting

mode 2

ALS2

<SET>

When select “Cnt”

Preset value setting

mode

Cnt

<SET>

KW8M Eco-POWER METER

Mode 2…Mode for setting of each parameter for pulse measurement Mode 3…Mode for setting of each parameter for serial communication Mode 4…Mode for setting of each parameter for optional function Mode 5…Mode for setting of calendar timer

*For AKW8111H, be sure to set calendar timer (Mode 5) and initialize memory of main unit (Mode 4)

before measuring.

Monitor (Display when power on)

<MODE>

Setting mode

(Mode 1)

<SET>

Refer to

the

page.

(Mode 2)

Max. measurement speed setting mode

Prescale setting mode

PSCL

<SET>

(Mode 3) (Mode 4)

Protocol setting mode

Auto-off setting mode

PROT

Station number

setting mode

NO.

Transmission speed

setting mode

SPD

Transmission format

setting mode

Log cycle

setting mode

LOG *1

Initialize memory of

main unit

S.FMT *1

(Mode 5) ＊1

Calendar timer

setting mode

OFF

CAL *1

FMT

<SET>

Response time

setting mode

RESP

<SET>

Monitor

Press <MODE> to return Monitor.

＊1 Only for AKW8111H. It is not displayed for AKW8111.

KW8M Eco-POWER METER

◆Initial value list

Mode 1 Mode 2

Item Initial value Item Initial value

Phase/Wire system 1P2W

CT type 50

Max. measurement

speed

2000

Primary side current of CT 5 Prescale 1.000

Voltage range 400

VT 1.00

Current for time measurement

1.0 Mode 3

Cutoff current 1.0 Item Initial value

Unit for pulse output 0.001 Protocol MEWTOCOL

Power alarm 9999.99 Station number 1

Current alarm 100.0 Transmission speed 19200

Stand-by alarm1 100.00

Stand-by alarm 2 0

Transmission

format

8bit-o

Preset value 0 Response time 5

Electricity rate 10.00

Mode 4 Mode 5

Item Initial value Item Initial value

Auto-off 0

Log cycle *1 60

Initialize memory of

main unit *1

OFF

Calendar timer *1

2000 Jan. 1

00:00:00

＊1 Only AKW8111H can be set.

It is not displayed for AKW8111.

KW8M Eco-POWER METER

4-2 Setting Mode Explanation

■The value with under line is initial setting among each setting value. ☆Set before measurement.

4-2-1 MODE1

(Mode for setting each parameter for power measurement.)

Phase/Wire system setting mode SYST Mode defines phase and wire system to measure.

・Select from Single-phase 2-wire

*When Single-phase 3-wire or Three-phase 3-wire is selected, it doesn’t measure Single-phase 2-wire system correctly. And when Three-phase 4-wire is selected, it doesn’t measure Single-phase 2-wire, Single-phase 3-wire, Three-phase 3-wire system correctly. Select the accurate phase and wire system according to the measured system.

CT type setting mode CT-T Mode defines input current type of the dedicated CT.

・Select from the type of 5A/50A ・When the secondary current of CT is 5A, select “5A”.

Primary side current of CT setting mode CT-1 Mode defines primary side current when measuring by combination with existing CT, its

secondary current of 5A. It is possible to use as the second step for combination with existing CT by selecting “5A” in the CT type setting mode. In this case, it is necessary to set the primary side current.

・Primary side current of the existing CT can be set the range of 1 to 4000 (Initial 5 ・When connecting 5ACT directly and measure with 5A range, set to “5”.

ex) If primary current of measured existing CT is 400A (secondary side is 5A), set to “400”. Voltage range setting mode VOLT Mode defines voltage range of Eco-Power Meter.

・Select from 400 ・When it measures load of 400V system, select “400”.

When it measures load of 100/200V system, select “200”. *In case measuring the load of 100/200V system with selecting “400”, the resolution will be down. Select the correct voltage range.

VT setting mode VT Mode defines voltage input method to the main unit, input voltage directly or uses a voltage transformer (VT) (over 440V system).

・It can be set the range of 1.00

“1.00” should be set when voltage input directly without connecting VT. “1.01 to 99.99” should be set when VT is used to input voltage.

Current for time measurement setting mode HM-A Mode defines for time measured current. It measures ON-time and OFF-time by setting value.

・It can be set the range of 1.0%

ex) When 10.0 is set, the current exceeds 10.0%F.S is measured as ON-time, the current under

10.0%F.S is measured as OFF-time.

*Measured current is the current of L1 (CT1)-phase.

Cutoff current setting mode CUTA Mode defines load current that does not measure (Cutoff current). Use to avoid miss-measurement by wiring or induction noise at no-load.

0.00kW is displayed for instantaneous electric power, 0.0A is displayed for current. Integrated electric power is not added.

・It can be set the range of 1.0%

ex) When set to 10.0, current under 10.0%F.S is not added.

/200.

/ Single-phase 3-wire / Three-phase 3-wire / Three-phase 4-wire.

/100A/250A/400A.

*This mode is only when “5A” is selected on CT type setting mode.

to 99.99.

to 100.0%F.S.

to 50.0%.

KW8M Eco-POWER METER

Unit for pulse output setting mode PL-P Mode defines unit used for pulse output. It defines the unit of integrated electric power for 1-pulse output.

・Select from 0.001

When one of the “0.001/0.01/0.1/1/10/100” [kWh] is set, one pulse is output at reaching the setting value. When “AL-P” is set, alarm is output at the time when instantaneous electric power is over the setting value. When “AL-C” is set, alarm is output at the time when current is over the setting value. When “AL-S” is set, alarm is output at the time when current is under the setting value and it passes the setting time. When “Cnt” is set, it output at the time when count value reaches preset value set by preset value setting mode.

Power alarm setting mode AL-P

Mode defines instantaneous electric power used for alarm output.

・It is set the range of 0.00 to 999999.99

Current alarm setting mode AL-C

Mode defines the ratio of current used for alarm output. (Ratio for the rated current)

・It is set the range of 1.0 to 100.0

Stand-by alarm setting mode 1 ALS1

Mode defines the ratio of current used for threshold value to judge stand-by power. (Ratio for the rated current)

・It is set the range of 1.0 to 100.0%.

Stand-by alarm setting mode 2 ALS2

Mode defines the time used for threshold value to judge stand-by power.

・It is set the range of 0

When “0” is set, alarm is always output at the time when judging the stand-by power. When “1 to 9999” is set, alarm is output at the time when passing the setting time with the stand-by power. The alarm can be reset by pressing <SET> with the instantaneous electric power display. After reset the alarm, start to monitor the stand-by power again.

Preset value setting mode Cnt

Mode defines count value used for output.

・It is set the range of (0×prescale setting value)

*This mode is only when “Cnt” is selected on unit for pulse output setting mode.

Electricity charge setting mode RATE Mode defines electricity charge ratio used as a standard per 1kWh.

・It can be set the range of 0.00 to 99.99 /1kWh. (Initial 10.00)

/0.01/0.1/1/10/100kWh /AL-P/AL-C/AL-S/Cnt.

＊Only when “AL-P” is selected on unit for pulse output setting mode.

kW.

＊Only when “AL-C” is selected on unit for pulse output setting mode.

＊Only when “AL-S” is selected on unit for pulse output setting mode.

to 9999min.

＊Only when “Cnt” is selected on unit for pulse output setting mode.

to (99999999×prescale setting value).

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