OMRON KM-N3-FLK INSTRUCTION MANUAL

model KM-N3-FLK

Waterproof packing

R S T N

− ＋

RS-485

On-Panel Power Monitor

INSTRUCTION MANUAL

Thank you for purchasing the On-panel Power Monitor, model KM-N3-FLK (referred to as model KM-N3 in this manual). This manual describes the functions, performance, and application methods needed for optimum use of model KM-N3. Please observe the following when using model KM-N3.

• This product is designed for use by qualified personnel with a knowledge of electrical systems.

• Before us

• Keep this manual in a safe location so that it is available for reference whenever required.

TRACEABILITY INFORMATION:

For detailed instructions, download "Model KM-N3-FLK User's Manual" (catalog no. N214-E1-01) from our website.

Key to Warning Symbols

Property damage may occur due to fire. Tighten the terminal screws to the specified torques. After tightening the screw, check that the screw is not loose. M3 screw: 0.5 to 0.58N·m

Minor or moderate injury or property damage may occur due to explosion. Do not use in locations exposed to flammable or explosive gases.

Breakdown or explosion may occasionally occur. Use the power voltage and load within the specified and rate ranges.

Electric shock may occasionally occur. Do not touch any of the term

Electric shock may occasionally occur. Always make sure that the power to the circuit the CT is being attached to is turned OFF before connecting the CT*.

Minor electric shock, fire, or malfunction may occasionally occur. Do not supply a current to the CT input terminal that exceeds the maximum CT secondary current.

Minor electric shock, fire, or malfunction may occasionally occur. Never disassemble, modify, or repair the product.

* CT: Current Transformer

Observe the following to ensure safe use of model KM-N3.

• Do not use or store the product in any of the following locations.

• Be sure to wire properly with the terminals with correct symbols.

• Use AWG20 to 16 (wit resistant temperature of the wire is 85 degree or more.

• Use AWG18 to 14 (with a cross-section of 0.75 to 2.0mm terminals. Use the crimping terminals of the round shape or Y-shape compatible with the M3 screw. The heat resistant temperature of the wire is 85 degree or more.

• Use twisted or solid wire AWG24 to 16 (with a cross-section of 0.25 to 1.5mm terminals. The heat resistant temperature of the wire is 85 degree or more.

• Before using or maintaining the product, thoroughly read and understand this manual.

• Understand the user manual before setting the device.

• Do not pull cables.

• For compliance with standards and safety, in order that the worker may turn OFF the power immediately, install a branch circuit breaker conforming to the voltage at which the device is used and the appropriate standards of the country where the devic and other countries: for example, IEC60947-1 and IEC60947-3), and indicate that the breaker is a device to disconnect the circuit for product safety. A branch circuit breaker with a rated current of 1A is recommended.

• Do not touch any of the terminals while the power is being supplied.

• Do not install the product close to heat-producing devices (those using coil elements, for instance).

• Separate the produc Do not place the product wiring parallel to or in the same ducts or conduits as power lines. Use separate ducts, separate conduits, or shielded cables to prevent noise.

• This is a “class A” product. In residential areas it may cause radio interference. The user may be required to take adequate measures to reduce interference if this occurs.

• Use the product by incorporating it in a panel 1 to 8 mm or the mounting method is not appropriate, the product might be come off.

ing the product, thoroughly read and understand this manual to ensure correct use.

The following notice applies only to products

Importer in EU:

Omron Europe B.V. Wegalaan 67-69 2132 JD Hoofddorp, The Netherlands

Corporation

Manufacturer:

Omron Corporation, Shiokoji Horikawa, Shimogyo-ku, Kyoto 600-8530 JAPAN

that carry the CE mark: This is a class A product. In residential areas it may cause radio Interference, in which case the user may be required to take adequate measures to reduce interference

PRECAUTIONS ON SAFETY

CAUTION

Indicates a potentially hazardous situation which, if not avoided, will result in minor or moderate injury, or there may be property damage.

CAUTION

inals while the power is being supplied.

PRECAUTIONS FOR SAFE USE

‒ Locations subject to shock or vibration ‒ Unstable locations where the user might fall/tumble down ‒ Locations subject to temperatures or humidity outside rated ranges ‒ Locations subject to condensation as the result of severe changes in temperature ‒ Ou

tside or otherwise exposed to direct sunlight and weather

‒ Locations subject to static electricity or other forms of noise ‒ Locations exposed to electromagnetic fields ‒ Locations subject to exposure to water or oil. ‒ Locations subject to exposure to salt water spray. ‒ Locations subject to corrosive gases (in particular, sulfide gas and ammonia gas). ‒ Locations subject to dust (including iron dust). ‒ Locations subject to exposure to solvents

h a cross-section of 0.5 to 1.5mm2) to wire the power supply terminals. The heat

) to wire the CT and measurement voltage

) to wire communication

t wiring from high-voltage or high-current power lines to prevent inductive noise.

e is used (US: UL Listed, Canada: cUL Listed,

thick. If the panel thickness is not appropriate

5371687-8 E

PRECAUTIONS FOR CORRECT USE

• This product is not categorized as "a specified measuring instrument" officially approved by an organization specified in relevant measurement acts. It cannot be used to certify power usage.

• Set the parameters of the product so that they are suitable for the system being measured.

• Use varistors between the outer power and voltage measuring input wires when this product is installed in an overvoltage category III environment.

• This product cannot be used to measure the inverter’s secondary side.

• Ensure that the rated voltage is reached within 2 seconds of turning the power on.

• When cleaning the unit, make sure the power is off and wipe the surface of the unit with a soft dry cloth. Do not use chemicals including solvents such as thinners, benzine, or alcohol.

• You cannot use the CT dedicated for use with the Omron KM series (model series KM20-CTF, model series KM-NCT). Use a CT whose secondary output is 1A or 5A.

• The data for active energy is saved at 5 minute intervals. The data for the 5 minutes preceding the unit powering off may not be saved under some circumstances.

• Dispose of this product appropriately as industrial refuse in accordance with local and national regulations.

사 용 자 안 내 문

이 기기는 업무용 환경에서 사용할 목적으로 적합성평가를 받은 기기로서 가정용 환경에서 사용하는 경우 전파간섭의 우려가 있습니다.

Features

This product is an electric energy monitor mounted on the panel of the control board. It complies with the international IEC accuracy standards and can be connected using general-purpose CTs. One unit can measure a maximum of four circuits. The unit can measure the power of each point accurately.

Main unit specifications

Rated input voltage AC100 to 240V Rated frequency 50/60Hz Variation range of power

supply voltage Variation range of power

supply frequency Power consumption 7VA or less Ambient operating

temperature Ambient operating humidity Storage temperature -25 to 85 oC (with no icing or condensation) Storage humidity 25 to 85%RH Dielectric strength voltage 1) Between the set of electric circuits and the case: 1400 VAC for 1 minute

Insulation resistance

Vibration resistance

Shock resistance

Electromagnetic environment

Display and Operation LCD display, buttons Weight Approximately 300g (main unit), approximately 400 Mounting Mounting on the panel Altitude Under 2000m Installation environment Applicable standards EN61010-1, EN61010-2-030, EN61326-1, UL61010-1, UL61010-2-030 Supplied Accessories Instruction Manual (this document), compliance sheet, Mounting adapter,

Item Content

85 to 110% of rated power supply voltage

45 to 65Hz

-25 to 55 oC (with no icing or condensation)

25 to 85%RH

2) Between the batch input of power supply, voltage, and current and the set of communication terminals and pulse output terminals: 1400 VAC for 1 minute

1) Between electronic circuitry and case: 20MΩ max. (at DC500V mega)

2) Between the batch input of power supply, voltage, and current and the set of communication terminals and pulse output terminals: 20MΩ max. (at 500 VDC mega)

Single amplitude: 0.1mm, Acceleration: 15m/s 10 sweeps for eight minutes along the three axes

150m/s2, 3 times each in the up, down, left, right, forward, and back directions

Industrial electromagnetic environment (EN/IEC 61326-1 Table 2)

Overvoltage category and measurement category: II, Pollution level: 2

waterproof packing

, Frequency: 10 to 150Hz

g (when in packaging)

Measurement specifications

Item Active power 0.5% (Compliant with IEC62053-22 Class 0.5S)* Reactive power 2% (Compliant with IEC62053-23 Class 2)* Measurement frequency 80ms (at 50Hz), 66.7ms (at 60Hz) Functions Conversion

*IEC62053 is an international standard dealing with electricity metering. *This does not include the measuring error margin of the generic CT.

Content

Measurement input specifications

Item Content Applicable circuit type 3-phase 4-wire, 1-phase 2-wire, 1-phase 3-wire, 3-phase 3-wire Number of measuring circuits

Rated input voltage 3-phase 4-wire : 100 to 277 VAC (L-N), 173 to 480 VAC (L-L)

Connectable CTs Generic CT (Secondary Rated current for CT

secondary side Maximum current for

CT secondary side

*You cannot use the CT dedicated for use with the Omron KM series (model series KM20-CTF, model series KM-NCT). Use a CT with a rated load of 1.0 VA or more.

3-phase 4-wire : Maximum 1 circuit 1-phase 2-wire : Maximum 4 circuits 1-phase 3-wire,

3-phase 3-wire

: Maximum 2 circuits

1-phase 2-wire : 100 to 277 VAC 1-phase 3-wire : 100 to 240 VAC (L-N), 200 to 480 VAC (L-L) 3-phase 3-wire : 173 to 480 VAC (L-L)

rated current: 1A or 5A)*

1A 6A

Output specifications

Item

Pulse output

Number of output points : 4 (PhotoMOS relay outputs)

(Active energy)

Residual voltage when ON : Current leakage when OFF : 0.1mA max. Output units : 1,10,100,1k,5k,10k,50k, 100k(Wh) Pulse ON time : 500ms fixed

RS-485 Protocol : Modbus (RTU),CompoWay/F

Sync method : Asynchronous Communication speed : 38400, 19200, 9600, 4800, 2400, 1200bps Maximum transmission distance : 1200m Maximum number of devices connected

Content

ssel ro Am05 ,V04CD:yticapac tuptuO

Less than 1.5V (when output current is 50mA)

: 99 (Modbus), 31 (CompoWay/F)

Attaching the body of the unit

Create an opening on the panel according to the panel machining dimensions.

• Use a panel 1 to 8 mm thick.

In order to make the unit waterproof, with the accessory waterproof packing on the front of the panel, insert the unit into the panel opening.

• Unless the waterproof packing is put, the product is not waterproof.

Fit the attached mounting adapter into the fixing grooves on the top and bottom faces of the rear case.

Push in the mounting adapter from the terminal side until it contacts the panel to fix the main unit tentatively.

Fasten the fixing screws of the top and bottom mounting adapter alternately as keeping balance little by little.

• Apply a fastening torque of 0.29 to 0.39 N•m.

* For safety purposes, install the main unit where you are not able to touch the terminals when operating

the main unit. For example, install the main unit with the terminals hidden within the control board so that a person working on the unit will not be able to touch live wires.

Panel

Mounting adapter wercs gnixiFretpada gnitnuoM

Panel opening dimensions

+0.8

Wiring of power supply, CT, and measurement voltage input

■ Wiring the power supply

For safety purposes, turn off the mains power and the breaker to ensure there is no power supply while you are working.

• The terminal is the push-in type. Also read "Cautions when connecting the Push-In Plus terminal " when wiring.

• To wire with the power supply terminal, use AWG20-16 wire (with a cross-section of 0.5 to 1.5 mm

• Peel the wire-coating by 10 mm when using a ferrule terminal and by

• Use a ferrule terminal with a conductor portion 8mm long.

Power supply voltage

100 to 240 VAC

L+ NNC +

8 mm when not using it.

Power supply

RS-485

CT1

CT2

■ Wiring the CTs

For safety purposes, turn off the mains power and the breaker to ensure there is no power supply while you are working.

• You will need 3 CTs to measure 3-phase 4-wire, 2 CTs to measure 1-phase 3-wire or 3-phase 3-wire, and 1 CT to measure 1-phase 2-wire.

• CTs have polarity, so confirm the current directions at the power supply side (K) and load side (L) before wiring the CTs. If the direction is not appropriate, power cannot be measured correctly.

L N

Breaker Main unit

Power side Main unit side

• To wire the CT input terminals, use AWG18-14 wire (with a cross-section of 0.75 to 2.0 mm2) and crimping terminals of the round shape or Y-shape (5.8mm wide or less) compatible with the M3 screw.

• The recommended torque for screwing the 3mm screws onto the terminal panel is 0.5 to 0.58 N·m. Make sure the crimping terminal is pushed all the way in and tightened firmly. After fixing the wiring, confirm that the wire is fixed securely.

K L

■ Wiring the measurement voltage input

For safety purposes, turn off the mains power and the breaker to ensure there is no power supply while you are working.

• Wire correctly so the phase sequence is correct. You will be unable to measure the power and energy correctly if you fail to do so.

• To wire with the measurement voltage input terminal, use AWG18-14 electric wire (with a cross-section of 0.75-2.0mm compatible with the M3 screw.

• The recommended fastening torque of the M3 terminal screw is 0.5 to 0.58 N·m. Make sure the ferrule terminal is pushed all the way in and tightened firmly. After fixing the wiring, confirm that the wire is fixed securely.

) and crimping terminals of the round shape or Y-shape (5.8mm wide or less)

■ Wiring diagrams

• The below table shows the wiring of voltage input terminals and CT input terminals with each phase and wire type (3-phase 4-wire, 1-phase 2-wire, 1-phase 3-wire, and 3-phase 3-wire) using only one circuit (circuit A). Wire the device according to the phase and wire type.

VT VN

CT-R

CT-S CT-T 3-phase 4-wire V1 V2 V3 VN CT1 CT2 CT3 1-phase 2-wire V1 — — VN CT1 — — 1-phase 3-wire V1 — V3 VN CT1 — CT2 3-phase 3-wire V1 V2 V3 — CT1 — CT2

(wiring example for 3-phase 4-wire) P1/P2: Primary S1/S2: Secondary

• The diagram at right shows the

relationship between the wiring table and the terminals on the main unit.

CT INPUT

CT-R

S2 S1

CT-S

S2 S1

CT-T

MEASURED VOLTAGE INPUT

V V

S1S2P1

CT1

CT2

CT3

CT4

MEASURED

VOLTAGE

Pulse output wiring

tuptuo PNPtuptuo NPN

− ＋

Load LoadLoadLoad

COMOUT4OUT3OUT2OUT1

This unit is equipped with 4 pulse output terminals. The common terminal is used commonly.

• The terminal is the push-in type. Also read "Cautions when connecting the Push-In Plus terminal "

when wiring.

• Do not directly connect an external power source to OUT or COM. Make sure the load is connected.

• To wire with the pulse output terminal, use AWG24-16 twisted or solid wire (with a cross-section of

0.25 to 1.5 mm2).

• Peel the wire-coating by 10 mm when using a ferrule terminal and by 8 mm when not using it.

• Use a ferrule terminal with a conductor portion 8mm long.

• To avoid the influence of noise, use separate wiring for the signals and

• Output for circuit A is allocated to OUT1, circuit B to OUT2, circuit C to OUT3, and circuit D to OUT4,

and these allocations are fixed.

Load Load Load Load

for the power.

RS-485 wiring

The configuration of the connection should be either 1:1 or 1:N. If the 1:N connection is Modbus, up to 99 KM-N3 can be connected. If CompoWay/F, up to 31 KM-N3 can be connected.

• The terminal is the push-in type. Also read "Cautions when connecting the Push-In Plus terminal " when wiring.

Communications master (host device)

• There is no FG terminal on KM-N3. Connect only the + wire and - wire of RS-485.

• Use twisted pair cables.

• To wire with the RS-485 terminal, use twisted or solid wire of AWG24-16 (with a cr

• Peel the wire-coating by 10 mm when using a ferrule terminal and by 8 mm when not using it.

• Use a ferrule terminal with a conductor portion 8mm long.

• To avoid the influence of noise, use separate wiring for t he RS-485 communications and for the power.

• The maximum transmission distance is 1200m.

• Irrespective of the transmission distance and number of units connected, perform communications

Term

• This unit is equipped with a terminating resistor inside the main unit. On the unit that is the terminator

• If the host device you are using does not have its own built in terminating resistor, connect a

• Do not wire in a terminating resistor terminal on KM-N3 that are along the transm

to 1.5 mm

checks with the actual units.

ination settings

for communications, short the RS-485 - terminal and the RS-485 E terminal with a cable. Connect with the internal terminating resistor.

terminating resistor to the host device. The terminating resistance is 120Ω (1/2W). caused communication failures.

Safety standard compatibility

If the equipment is used by a method not specified by the manufacturer, the equipment might lose the equipped protection.

The temporary overvoltage occurring on the main power supply must not exceed the following values: Confirm the voltage using the power supply voltage of the product that you purchased. Short-time overvoltage: 1200 V+ (power supply voltage) Long-time overvoltage: 250 V+ (power supply voltage)

For safety standard compliant, Listing CT of XOBA / XOBA7 category must be used.

Electric shock may occasionally occur. Use the product according to this content. Heat resistant temperature of wires that are used with the product needs to be more than 85 degree.

oss-section of 0.25

ission path. This can

S1 S2 S1 S2 S1 S2

S1 S2 V1 V2 V3 VN

COMOUT4OUT3OUT2OUT1

Multi-address system

1-phase 3-wire,

1-Phase 2-wire (4 circuits max.)

[MODE・ ]

Integrated value display

Instantaneous value display

[I/V/F/PF] key [P/Q] key [E1] key [E2] key

Circuit A

Circuit C

1-phase 3-wire (1P3W)

This unit makes it possible to have a maximum of 4 measuring circuits in one unit. The measuring circuits act as independent power monitors, each able to measure, each having different settings, and each allocated different communications addresses. You can easily change the number of circuits by enabling or disabling the measuring circuits.

3-Phase 3-wire (2 circuits max.)

Circuit D

Measurement value

Setting Value

Communication address

Circuit C

Measurement value Setting Value Communication address

Circuit B

Measurement value Setting Value Communication address

model KM-N3

Circuit A

Measurement value Setting Value Communication address

Circuit C

model KM-N3

Circuit A

Measurement value Setting Value Communication address

Mode configuration

This model has three modes: measuring mode, setting mode, and communication setting mode.

Measuring mode :The measured values or alarm details of each circuit are displayed. Setting mode :By operating keys on the body of the unit you can change settings for

Communication setting mode :Make settings on the units using RS-485 communication.

each of the circuits, and make common settings for communications, output, the display, etc.

Measurement mode

Alarm screen

Circuit D

Measurement

value

Password input

Circuit C

Measurement

value

[MODE・ ] Hold Down Command

[MODE・ ]

Circuit B

Measurement

value

Configuration mode

Common

Other

value

Setting

• In the measuring mode and setting mode, the circuit B to D items are displayed by switch the enable/ disable settings for each of the circuits to "ON" (enabled). (The circuits indicated inside the dotted lines are "OFF" (disabled) in the default state.)

• The alarm screen is displayed when an alarm has occurred.

Switching between the measuring mode and the setting mode

Switch between the measuring mode and setting mode by press

• "Press and hold" means pressing the key for 1 or more seconds.

How to enter the password

• When moving from the measuring mode to the setting mode, you need to enter the password that has been set.

• The default password is "0001".

• You can set a password of 4 numerals between 0000 and 9999. Change the password as necessary.

• You will be unable to reset the password if you forget it. Take care to note the password carefully when changing it.

• There is no functionality to disable the password setting.

• If you forget the pass

CircuitD

Setting

value

word, contact the place of purchase or the manufacturer.

value

CircuitC

Setting

[MODE・ ]

value

CircuitB

Setting

value

CircuitA

Setting

value

ing and holding the [MODE• ] key.

Circuit A

Measurement

value

Communication setting mode

Using RS-485 communication, change setting from a host device.

Measuring mode

• Measurement display

When the [MODE• ] key is pressed, the measuring items are displayed after the screen for showing the destination circuit.

• By pressing the [I/V/F/PF], [P/Q], [E1], or [E2] key, the measuring items are switched.

• When an alarm has occurred, the screen transits to not only the screen displaying the measured values but also the screen displaying the alarm details.

(1P2W display example)

Alarm

screen

(Display of circuit A measured values)

[I/V/F/PF]

Circuit D

measured values

Circuit C

measured values

[P/Q]

Circuit B

measured values

 By pressing the [I/V/F/PF] or [P/Q] key, the instantaneous value display is switched.

pressing the [E1] or [E2] key, the integrated value display is switched.

 By

measured values

[E1]

Circuit A

Start-Up

[E2]

• Measurement display list

key Item

1 2

I/V/F/PF

3 4 5 1 2

P/Q

3 4 1 2

3 4

5 6 7 8 9

1 2 3 4 5

6 7 8 9

 The unit such as k or M is switched automatically.  Although the indication value of the model KM-N3 main unit is returned to zero when the integrated

value has reached the maximum, the unit continues to integrate the measured value. Correct values

can be obtained by using the communication function. *1 Voltage A: The phase voltage and line voltage of the each phase and wire type are displayed. *2 Voltage B: The li

Current Voltage A Voltage B

Frequency

Power factor

Active power Reactive power (each phase)

Cumulative total reactive Reactive energy (import) -----

Reactive energy (export) ----T1 active energy (import) ----T2 active energy (import) ----T3 active energy (import) ----T4 active energy (import) -----

Cumulative total reactive

(each phase) -9999

Active power

Reactive power Active energy (import) ----Active energy (export) -----

power

Active energy (import)

(resettable)

Active energy (export)

(resettable)

power (resettable)

Reactive energy (import)

(resettable)

Reactive energy (export)

(resettable)

T1 active energy (import)

(resettable)

T2 active energy (import)

(resettable)

T3 active energy (import)

(resettable)

T4 active energy (import)

(resettable)

Conversion value -----

ne voltage is displayed only for the three-phase four-wire type.

Instantaneous

value display

0.000 *1 0.000 *2 0.000

(total) -9999

45.0

-1.00

-9999

(total) -9999

to to to to to to to to to

-----

9999 9999 9999

65.0 1 .00 9999 9999 9999 9999

Integrated

value display

-----

999999 kWh/MWh

0 0

999999 kWh/MWh (“--” is lit)

999999 kvarh/Mvarh (“Total Q” is lit)

999999 kvarh/Mvarh (“--” is lit)

999999 kvarh/Mvarh

999999 kWh/MWh

999999

units

V/kV V/kV

kW/MW

kW/MW kvar/Mvar kvar/Mvar

kWh/MWh

(“RESETTABLE” is lit)

kWh/MWh (“

(“RESETTABLE” is lit)

kvarh/Mvarh

(“RESETTABLE” is lit) kvarh/Mvarh (“ (“RESETTABLE” is lit)

kvarh/Mvarh

(“RESETTABLE” is lit)

kWh/MWh

(“RESETTABLE” is lit)

kWh/MWh

(“RESETTABLE” is lit)

kWh/MWh

(“RESETTABLE” is lit)

kWh/MWh

(“RESETTABLE” is lit)

N/A

Hz PF

” is lit)

(“Total Q” is lit)

” is lit)

Setting mode

• Setting item list

Default

Value 3P4W

Automatic

S/N

Automatic

S/N

Automatic

S/N

9.6K 88 / 7htgnel ataD20

12 / 1tib potS30

100

Circuit

Common

CMMN

Others

ETC

No. A1 Phase and wire type

A2 Communication address A3

A4 Current on the CT primary side 1 to 99999 5 A5 Voltage assignment V_R / V_T / V_R-T V_R A6 Pulse output ON/OFF ON / OFF OFF A7 Active energy reset ----- ----B0 Circuit B ON/OFF ON / OFF OFF

B1 Phase and wire type B2 Communication address

B3 B4 Current on the CT primary side 1 to 9999 5 B5 Voltage assignment V_R / V_T / V_R-T V_R B6 Pulse output ON/OFF ON / OFF OFF B7 Active energy reset ----- ----C0 Circuit C ON/OFF ON / OFF OFF

C1 Phase and wire type C2 Communication address

C3 C4 Current on the CT C5 Voltage assignment V_R / V_T / V_R-T V_R C6 Pulse output ON/OFF ON / OFF OFF C7 Active energy reset ----- ----D0 Circuit D ON/OFF ON / OFF OFF

D1 Phase and wire type D2 Communication address

D3 D4 Current on the CT primary side 1 to 9999 5 D5 Voltage assignment V_R / V_T / V_R-T V_R D6 Pulse output ON/OFF ON / OF D7 Active energy reset ----- -----

01 Communication speed

05 Transmission wait time 00 to 99 20



07 Conversion rate 0.000 to 99.999 10.000 08 Pulse output units 09 Automatic LCD off OFF / 1.0 / 5.0 / 10.0 (minutes) OFF 0A

0C Change password 0000 to 9999 0001 90 Software version display V.1.0.0

Setting Item

Current on the CT secondary side

Alarm display with negative

effective power value ON/OFF

primary side 1 to 9999 5

3P4W / 1P2W /1P3W / 3P3W /1P2W2 / 1P3W2

The phase and wire type set by menu

Thephaseandwiretypesetbymenu

Main display

Display of options and input values

Modbus : --, 01 to 99

CompoWay/F : -- 00 to 99

1A / 5A 5A

No. A1 is displayed.

Modbus

: --, 01 to 99

CompoWay/F : -- 00 to 99

1A / 5A 5A

No. A1 is displayed.

Modbus : --, 01 to 99

CompoWay/F : -- 00 to 99

1A / 5A 5A

No. A1 is displayed.

Modbus : --, 01 to 99

CompoWay/F : -- 00 to 99

1A / 5A 5A

F OFF

1.2K / 2.4K /4.8K

9.6K / 19.2K / 38.4K(bps)

1 / 10 / 100 / 1K / 5K

10K / 50K /100K (Wh)

ON / OFF ON

• Setting example

T N

RS-485

communication

(CompoWay/F)

Host

Device

To measure, you first need to make settings in the settings mode for the circuits and communications. Example settings are shown for the following conditions.

Circuit A Circuit C

• Phase and wire type : 1P3W • Circuit C ON/OFF : ON

• Current on the CT secondary side

• Current on the CT primary side

• Communication address

• Pulse output ON/OFF

Items that have a minimum setting are as follows:

Circuit A settings Circuit C settings

• Phase and wire type : MENU A1 • Circuit C ON/OFF : MENU C0

• Address number : MENU A2

• Current on the CT secondary side

• Current on the CT primary side

• Pulse output ON/OFF : MENU A6

RS-485 communication settings Pulse output settings

• Protocol : MENU 00 • Pulse output units : MENU 08

• Communication speed : MENU 01

• Data length : MENU 02

• Stop bit : MENU 03

• Transmission wait time : MENU 05

Circuit A

CircuitC

Pulse Output ON (10kWh/pulse)

Host Device

: 1A • Phase and wire type : 1P3W

: 100A • Current on the CT

: 15 • Current on the CT

: ON (automatically

allocated to OUT1)

: MENU A3 • Pulse output ON/OFF : MENU C6

: MENU A4  The secondary current for CTs (MENU C3)

40 UNEM:ytiraP•

N TR

100A breaker

CT primary side 100A CT secondary side 1A

N TR

200A breaker

CT primary side 250A CT secondary side 5A

secondary side

primary side

• Communication address

• Pulse output ON/OFF

• Current on the CT primary side

does not need to be changed.

Moving to the setting mode

• Press and hold the [MODE• ]key to move to the password entry screen.

• Enter the password. Change the values using the [ ] and [ ] keys. Press the [MODE• ] to change the place. (Password default: 0001)

• Press the [ENTER] key to confirm the value. OK is moves to the setting mode.



If you press the [ESC] key before press the [ENTER] key, current input is canceled.(Same for other settings.)

displayed if the password is correct and the screen

Communications protocol settings (common settings)

Set to CompoWay/F

• Press the [MODE• ] key to move to the common settings "CMMN" screen.

• Press the

• Press the [ENTER] key to enter the setting mode. The setting value in the main display flashes.

• Press the [

• Press the [ENTER] key to confirm your selection.

 Make other communications settings to suit the host device.

[

] key to move to the common settings items. "Protocol (MENU 00)" is displayed.

][

] keys to select "COMPF".

Pulse output units settings (common settings)

Set to 10kWh/pulse

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Set the phase and wire type to 1P3W

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[MODE• ]

• Press the

• From the common setting items, press the [

• Press the [ENTER] key to enter the setting mode. The setting value in the main display flashes.

• Press the [

• Press the [ENTER] key to confirm your selection.

key to move to the common settings "CMMN" category display screen.

][

] keys to select "10k".

] keys to move to "Pulse output units (MENU 08)".

][

Circuit A settings

• Press the [MODE• ] key to move to the ci "Phase and wire type (MENU A1)" is displayed.

• Press the [ENTER] key to enter the setting mode. The setting value in the main display flashes.

• Press the [

• Press the [ENTER] key to confirm the selected items.

] keys to select "1P3W" (1-phase 3-wire).

][

rcuit A setting items.

: 5A

: 250A

: 16 (numbered

starting from circuit A) ON (automatically

allocated to OUT3)

: MENU C4

Set communication address of circuit A to 15

• On the setup items of circuit A, press [ ] or [ ] key to move to the "Communication address (MENU A2)."

• Press the [ENTER] key to enter the setup mode. The ones place of the main display blinks.

• Press the [ ] or [ ] key to change the numerical value to "15."

‒ By pressing the [MODE• ] key, the cursor moves left by one digit. ‒ By pressing the [ ] key at the leftmost digit, the cursor moves to the rightmost digit.

• Press the [ENTER] key to determine the settings.

*1 The communication address settings are assigned to circuit A. When multi-address is used, the values

on the table below are assigned automatically.

*2 The communication addresses of circuits B-D cannot be s

Circuit A Circuit B Circuit C 3-phase 4-wire 1-phase 2-wire, 1-phase 2-wire voltage selected 1-phase 3-wire, 3-phase 3-wire 1-phase 3-wire composite

Set the CT secondary side current to 1A

• From the circuit A setting item, press the [ ][ ] keys to move to "CT secondary side current (MENU A3)" .

• Press the [ENTER] key to enter the setting mode. The setting value in the main display flashes.

• Press the [

• Press the [ENTER] key to confirm the selected items.

Set the CT primary side current to 100A

• From the circuit A setting item, press the [ ][ ] keys to move to "CT primary side current (MENU A4)".

• Press th main display flashes.

• Press the [

‒ Press the [MODE• ] key to move one place to the left.

If you press the [MODE• ] key on the end at the left, the cursor moves to the right end.

• Press the [ENTER] key to confirm your change.

Set pulse output to ON

• From the circuit A setting item, press the [ ON/OFF (MENU A6)".

• Press the [ENTER] key to enter the setting mode.

• Press the [

• Press the [ENTER] key to confirm the selected items.

] keys to select "1A".

][

e [ENTER] key to enter the setting mode. The digit in the ones place on the

] keys to change the value to "100".

][

] keys to select "ON".

Setting value Setting value Setting value +1 Setting value +2 Setting value +3 Setting value

Setting value

][

et up individually.

— — —

 

] keys to move to "Pulse output

Setting value +1 Setting value +1 Setting value +2

Circuit D

—

Circuit C settings

Enables circuit C

• Press the

• Press the [ENTER] key to enter the setting mode. The setting value in the main

• Press the [

• Press the [ENTER] key to confirm the selected items.

Set CT primary side

• From the circuit C setti

• Set the same as for circuit A after this.

Setting pulse output ON or OFF

• From the circuit C setting item, press the

• Set the same as for circuit A after this.

[MODE• ]

key to move to the settings screen for circuit C.

]

[

"Circuit C ON/OFF (MENU C0)" is displayed. display flashes.

side current (MENU C4)".

key to move to the circuit C setting item.

][

] keys to select "ON".

ng item, press the [ ][ ] keys to move to "CT primary

[

][

]

keys to move to "Pulse output ON/OFF (MENU C6)".

Reflecting the settings

• Press and hold the



When the settings have been changed, the changes are saved when moving to the measurement mode and the unit restarts. Settings are not saved if the unit is turned off while still

key to finish the settings and restart.

[MODE• ]

in the setting mode.

General agreement regarding use

Omron Products are designed and manufactured as general-purpose products for use in general industrial products. They are not intended to be used in the applications described below, therefore if you use Omron products in these applications, Omron provides no warranty for Omron products. However, this excepts cases where Omron has specified that it agrees to provide a warranty, even when used in the following applications. (a) Applications with stringent safety requirements (For example, nuclear power control equipment,

combustion equipment, aerospace equipment, railway equipment, elevator and lift equipment, amusement equipment, medical equipment, safety equipment, and other applications that could cause physical injury or result in the loss of life.)

(b) Applications that require high reliability (For example, supply systems for gas, water and electricity,

etc., 24 hour continuous operating systems, financial settlement systems and other applications that handle rights and property.)

equipment exposed to chemical contamination, equipment exposed to electromagnetic interference and equipment exposed to vibration and shocks.)

(d) Applications under conditions or environments not described in catalogs or other publications. In addition to the applications listed in (a) to (d), the products in this publication are not intended for use in

automobiles (including for two-wheeled vehicles, and this description applies hereafter). Do not use for applications involving fitting to automobiles. Consult Omron staff for information about products suitable for use in automobiles. The above are some of the conditions for use of this product. Please carefully read the warranties and limitations of liabilities printed in our most up-to-date catalogs and manuals, including accompanying catalogs and datasheets.

July, 2017

OMRON KM-N3-FLK INSTRUCTION MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual