Mitsubishi Electric EMU4-FD1-MB User Manual

Energy Measuring Unit

MODEL

EMU4-FD1-MB

User’s Manual (Details)

● Before operating the instrument, you should first read thoroughly this operation manual for

safe operation and optimized performance of the product.

Deliver this user’s manual to the end user.

This manual describes setup and usage for the Energy Measuring Unit. Before using the product, please read this manual

vehicles please refer to our sales representative.(For details, please see at the end of this manual.)

Notations in this manual

Use the following marks in this manual.

Mark

Meaning of the icons

Danger

Caution

Indicates that incorrect handling may result in injury or property damage, ignoring this marking.

Supplement

Indicates that precautions to avoid a malfunction and to work the unit properly.

Indicates that the pages described that related matters.

This unit cannot be used for deal and proof of electric energy measurement stipulated in the

・

Safety precautions

Thank you for purchasing the Energy Measuring Unit.

･

carefully to ensure correct use. Especially, in the case of where this unit is to be installed, please read “1. Precautions for Use” to ensure correct use.

･ Make sure that the end users read this manual and then keep the manual in a safe place for future reference. ･ Make sure to deliver this manual to the end-user. ･ If you are considering using this unit for special purpose such as nuclear power plants, aerospace, medical care or passenger

･

Indicates that incorrect handling may result in death or severe injury, ignoring this marking.

・

measurement law. Please use the certified watt-hour meter to be used for deal and proof of electric energy measurement stipulated. When using this unit, make sure to use it in combination with 5A/1A current transformer.

Features

･ This Energy Measuring unit can measure various types of electric quantity such as voltage, current, electric power and electric

energy.

･ The measured data can be sent to the high-end device, such as a monitoring device by MODBUS

function.

･ This Energy Measuring unit has one external input terminal, which can switch between pulse input and contact input.

Production quantity and water, gas, air (other than electricity) can be measured in the pulse input setting. Monitoring of condition and alarm, measurement of operating time and electric energy during operation can be done in the contact input setting.

MODBUS

is a registered trademark of SCHNEIDER ELECTRIC USA, INC in the United States.

RTU communication

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Table of Content

Safety precautions ................................................................................................................................................................. 1

Features ................................................................................................................................................................................... 1

Table of Content ...................................................................................................................................................................... 2

1. Precautions for Use ........................................................................................................................................................... 3

Precautions for Operating Environment and Conditions ..................................................................................................................... 3

Matters concerning the precaution before use ...................................................................................................................................... 3

Installation and Wiring Precautions ........................................................................................................................................................ 3

Precautions for Use .................................................................................................................................................................................. 4

Maintenance Precautions ........................................................................................................................................................................ 4

Storage Precautions ................................................................................................................................................................................. 4

Disposal Precautions ............................................................................................................................................................................... 4

About packaging materials and this manual ......................................................................................................................................... 4

2. Disclaimer ............................................................................................................................................................................ 5

3. Name and function of each part ....................................................................................................................................... 5

4. Attaching and removing the unit ..................................................................................................................................... 7

5. Procedure for wiring ........................................................................................................................................................ 10

Wiring for EMU4-FD1-MB .....................................................................................................................................................................10

System configuration example of MODBUS®RTU communication .................................................................................................13

6. Operating mode ................................................................................................................................................................ 15

7. Setting method ................................................................................................................................................................. 16

Procedures for setting ............................................................................................................................................................................16

Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc. ...........................................................18

Setting menu 2: MODBUS

Setting menu 3: Contact / pulse input/output, equivalent CO2, harmonic, operating time, etc. .....................................................25

Setting menu 4: Upper / lower limit alarm setting, alarm delay time ,alarm reset, etc. ...................................................................26

Setting menu 5: Setting related to logging unit ....................................................................................................................................28

Setting menu 5: MODBUS

Confirmation menu 1 - 5: Confirmation of setting values in setting menu 1 - 5 ...............................................................................30

Initialization of related items by change of setting ...............................................................................................................................31

Clock setting and logging data clear .....................................................................................................................................................32

Change of date format ...........................................................................................................................................................................33

How to use test mode ............................................................................................................................................................................34

Test menu 1: Discrimination support function for improper connection ...........................................................................................35

Test menu 2: Communication test ........................................................................................................................................................47

Test menu 3: Pulse output test ..............................................................................................................................................................48

Test menu 4: Alarm output test..............................................................................................................................................................48

8. Operation ........................................................................................................................................................................... 49

Operation procedure in operating mode ..............................................................................................................................................49

Measured item indication in operating mode ......................................................................................................................................52

How to use upper/lower limit alarm function ........................................................................................................................................54

Operations of alarm reset ......................................................................................................................................................................55

Preset and all data reset ........................................................................................................................................................................56

9. Device operation ............................................................................................................................................................... 57

Measured items ......................................................................................................................................................................................57

Restrictions of measured data ..............................................................................................................................................................59

10. Reference ......................................................................................................................................................................... 60

In case you think the unit is in failure ....................................................................................................................................................60

About error number ................................................................................................................................................................................60

After-sales service ..................................................................................................................................................................................61

Q&A ..........................................................................................................................................................................................................61

11. Requirement for the compliance with EMC Directives ............................................................................................ 63

12. Specifications ................................................................................................................................................................. 64

Common specifications .........................................................................................................................................................................64

Specifications of MODBUS®RTU communication .............................................................................................................................66

13. Option devices ................................................................................................................................................................ 67

14. External dimensions ...................................................................................................................................................... 70

15. Index ................................................................................................................................................................................. 71

RTU communication .............................................................................................................................22

TCP communication .............................................................................................................................29

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1. Precautions for Use

Precautions for Operating Environment and Conditions

Matters concerning the precaution before use

Installation and Wiring Precautions

Caution

Condition

Distance

Power line 600V or less Other power line

300mm or longer 600mm or longer

If the wires connected to this unit are strongly pulled off, it may cause a malfunction or a breakage to the unit or the wire.

･ This unit is premised on being used in pollution degree 2* environment. When used in higher pollution degree, protect this unit

from pollution on another device side to be incorporated.

･ Over voltage category of measuring circuit in this unit is C AT Ⅲ*, and that of auxiliary power circuit (MA, MB) is C AT Ⅲ*. ･ Do not use this product in the places listed below. Failure to follow the instruction may cause malfunctions and a life decrease

of product.

- Places the Ambient temperature exceeds the range -5 - +55°C.

- Places the average daily temperature exceeds +35°C.

- Places the Relative humidity exceeds the range 30-85% or places with dewfall.

- Vibration and impact exceed the specifications.

- Dust, corrosive gas, saline and oil smoke exist.

- Places exposed to direct sunlight.

- Places exposed to rain or water drop.

- Places in strong electromagnetic field or places large amounts of external noise exist.

- Places metal fragments or conductive substance are flying.

- Altitude exceeds 2000m.

< For prevention of electric shock>

･ This unit is designed to be housed within another device for prevention of electric shock. House this unit within the device

such as the grounded control panel before use.

･ To prevent persons with little knowledge about electric equipment from electric shock, panel must be taken either following

measure.

- Lock the panel so that only those who get an education about electric equipment and have sufficient knowledge can unlock, or shut off power supply automatically by opening the panel.

- Cover the dangerous part of this unit. (Required protection code is higher than IP2X.)

*: For the definition of the pollution degree and the over voltage category, refer to EN61010-1/2010.

・ Use the unit in the specified usage environment and conditions. ・ The setting of this unit (phase system, primary voltage, primary current) is necessary before use it.

Make sure to read this manual carefully before Installation and Wiring.

･ Any person who is involved in the installation and the wiring of this unit should be fully competent to do this work. ･ Work under the electric outage condition when installing and wiring. Failure to do so may cause electric shock, a failure of

the unit, a fire etc.

･ When tapping or wiring, take care not to entering any foreign objects such as chips and wire pieces into this unit. ･ Check the connection diagram when wiring. Wrong wiring may cause failure of the unit, a fire or electric shock. ･

For protection against noise, transmission lines and input/output lines shall not be placed close to or bound

together with the power lines and high-voltage lines.

･ The wires to be connected to this unit shall be placed in a duct or fixed together by cramping. If the electric wires are not

placed in the duct or cramped together, loosen wires or their movement or careless stretch may cause a breakage of the unit or wire or a malfunction due to poor contact of electric wires.

･ If transmission lines and input/output lines are placed close to or bound together with the power lines and high-voltage

lines, keep distance as below between them.

<Connection of terminal block> ･ Strip the wires with proper length. Overlong stripping length may cause short to next wire. Shorter stripping length may

cause contact failure.

･ Take care not to short to next terminal by a filament. (Do not plate the wires with solder.) ･ Do not connect three or more wires to one terminal of a terminal block for preventing loose contact and wires dropout. ･ Use appropriate size of electric wires. If inappropriate size of electric wire is used, it may cause a fire due to generated

heat.

･ Circuits connected to an auxiliary power circuit (MA, MB) need to be used the over current protection device (fuse, circuit

breaker, etc.) to prevent shorting connecting wires. (Select an appropriate rating to prevent burnout of the wires.)

･ Tighten the screw within the specified torque. Over tightening can damage the screw and/or terminal. ･ After tightening the screws, be sure to check all the screws tightened. Loose screw may cause malfunction of the unit, a

fire or electric shock.

･ Be sure to attach the terminal cover to prevent electric shock. ･ Do not directly touch any conductive part of the unit. Doing so can cause electric shock, failure or malfunction of the unit. ･

(3/71)

･ Do not exceed the specified voltage when doing an insulation resistance test and a commercial frequency withstand

Precautions for Use

Danger

Do not touch the live part. It may cause electric shock, electric burn injury or damage of the device. Work under the electric outage condition when installing and wiring.

Caution

Do not disassemble or modify this unit. It may cause failure, malfunction, injury or fire.

damaged, and burnout may be caused.

Maintenance Precautions

Do periodical maintenance under the electric outage condition. Failure to do so may cause electric shock, failure of the unit or a fire. Tighten the terminal regularly to prevent a fire.

Storage Precautions

Disposal Precautions

About packaging materials and this manual

voltage test. Do not connect to frame GND terminal during the insulation resistance test and pressure test.

･ Use the crimp-type terminal appropriated for the size of electric wires. If inappropriate crimp-type terminal is used, a wire

breakage or a contact failure may occur, which may cause a device malfunction, a failure, a burnout or a fire.

･ Frame GND terminal must be grounded according to the D-type ground (ground resistance is not exceed 100Ω).

･ This unit cannot be used for deal and proof of electric energy measurement stipulated in the measurement law. ･ Before operating the product, check that active bare wire and so on does not exist around the product. If any bare wire exists,

stop the operation immediately, and take an appropriate action such as isolation protection.

･ In the event of a power outage during the setting, the unit is not set correctly. Please set again after power recovery.

･･

･･ Use this unit within the ratings specified in this manual. If it is used outside the ratings, it may cause not only malfunction

or failure but also fire burnout.

・ When using this product, make sure to use it in combination with 5A current transformer(max 30V AC). ･

Do not open the secondary side of the CT circuit. If the CT is not connected properly or if the secondary side of the CT is

open, it may result in high voltage on the secondary side of the CT, the insulation of the secondary winding wire may be

･ Use a soft dry cloth to clean off dirt of the unit surface. Do not let a chemical cloth remain on the surface for an extended

period of time nor wipe the surface with thinner or benzene.

･ Check for the following items to use this unit properly for long time.

(1) Daily maintenance

(a) No damage on this unit (b) No abnormality with LCD indicators (c) No abnormal noise, smell or heat

(2) Periodical maintenance (Once every 6 months to 1 year)

- No looseness with installation and wire connection

Caution

･ To store this unit, turn off the power and remove wires, and put it in a plastic bag. ･ For long-time storage, avoid the following places. Failure to follow the instruction may cause a failure and reduced life of the unit.

- Places the Ambient temperature exceeds the range -10 - +60°C.

- Places the average daily temperature exceeds +35°C.

- Places the Relative humidity exceeds the range 30-85% or places with dewfall.

- Vibration and impact exceed the specifications.

- Dust, corrosive gas, saline and oil smoke exist.

- Places metal fragments or conductive substance are flying.

- Places exposed to rain, water drop or direct sunlight.

When disposing of this unit, treat it as industrial waste.

For reduction of environment load, packaging materials are produced with cardboard, and this manual is printed on recycled paper.

(4/71)

2. Disclaimer

Contact/ pulse input terminals

Contact/ pulse output terminals

Frame GND terminal

Power supply termin als

Voltage input terminals

LCD display

Operation button

Communication terminal s

(MODBUS® RTU)

Current input termi nals

IEC

rail fixture

Terminal symbols

Function

Description

P1/P1, P2/P0, P3/P3, NC/P2

Input voltage

Connect the voltage input wire of the measuring circuit.

Frame GND (FG)

Connect to ground. (D-type ground)

MA, MB

Auxiliary power

Connect the auxiliary power supply.

1k, 1L, 2k, 2L,

Input current

Connect the secondary output of the

the measurement circuit’s current wire.

485+, 485-

MODBUS®

Connect the communication wire (MODBUS® RTU).

SLD

Connect to ground. (D-type ground)

Ter

Connect with “485-“ terminals (the unit at end of the link) page 13

X1, COMX

Pulse input/ contact input

Connect pulse input/contact input wires.

Y1, COMY

Pulse output/ contact output

Connect pulse output/contact output wires.

Sign and function of the terminal block

‧ It is prohibited to reprint or copy all contents of this document in any form without our permission. ‧ The contents of this document will be updated to follow revisions to software and hardware, however under unavoidable

circumstances it may not be synchronized.

3. Name and function of each part

･ Name of each part

･ Back view

3k, 3L

current transformer (CT) connected to

communication

(5/71)

･ Function of operation buttons

Mode

Name of Button

SET

-/RESET

+/PHASE

DISP

Change measured items

Change phase

Change harmonic order (at harmonic display)

Clear alarm (at alarm keeping)

Transition to confirmation mode

Transition to setting mode

display

Integrated

display

Enter setting menu

(Move at fast speed when pressing more than 1sec)

Change of setting items (forward) Transition to setting menu number (at final setting item)

Moving up or down of setting value (Move at fast speed when pressing more than 1sec)

Change setting items (backward)

item)

Go back to setting menu

Change setting items (forward) Transition to setting menu number (at final setting item)

Change setting items (backward)

item)

At "END" display, memorize changed setting and transition

to operating mode

Moving up or down of setting value

Reset setting values to factory default (only effective at CANCEL display)

No.

Indicator

Description

Measured value

Display measured value digitally.

Measured item

Display measured item displayed on indicator 1.

Communication

Light when connecting communication unit.

Energy Measurement

Light when measuring electric energy

Setting

Indicator lights on setting mode.

Indicator lights on confirmation mode.

SET button

Control buttons have many functions as below. (How to change mode page 15.)

DISP button

+/PHASE button

-/RESET button

Meaning of symbol: ○ (Press), □ (Press more than 1 sec), ◎ (Press more than 2 sec), ― (Press both at the same time)

Setting mode

Confirmation

Operating

Mode

mode

Operation

Contact

value

display

Setting mode

/ Setting display

Confirmation

mode / Setting display

○ ○ ○ ◎

◎ ◎ ◎

◎

◎ ◎

○

□

○

□

○

(□)

○

(□)

○

(□)

○

(□)

Function

Clear contact latch

Transition to preset display

Transition to reset display of all data

Moving up or down of menu number

Transition to setting menu number (at beginning setting

Transition to setting menu

Confirmation

display of

setting

reflection

○

○ ○

◎ ◎

to operating mode At "CANCEL" display, annul changed setting and transition

･ Functions of LCD

(6/71)

4. Attaching and removing the unit

Caution

Any person who is involved in the installation and the wiring of this unit should be fully competent to do this work.

(2) Catch

IEC rail

(4) Push the IEC rail

fixture upward.

(3) Push in

(1) Hold the unit and pull IEC rail

fixture downward.

(2) Pull the unit

(1) Pull IEC rail fixture downward.

More than 7.3

There are two installation methods, surface mounting and panel mounting

･ Surface mounting

(1) How to attach to the IEC rail

Applicable IEC rail Attaching Removing

*1: When showing the display part by cutting the panel face in mounting the IEC rail, cut the panel at where it is more than 50mm away from the fulcrum of the open/close of the door.

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･ Plate mounting

Dimensions of hole panel(76×44.5)

Attaching

Dimensions of hole panel（101×44.5

Attaching

Plate

Attach the plate by using 2 screws. Tight

Mounting screws

Outline of the measuring unit

Outline of the option unit

Attach the plate by using 2 screws. Tight

Mounting screws

Plate

cross recessed head screw with captive washer

M3×10 2pcs

Outline of the measuring unit

*Panel cut dimensions are made larger than the product considering

(1) Screw mounting (Measuring unit)

tolerance in panel cut.

If you want to prevent dust and other intrusion the gap of panel cut,

cut the panel according to the product to be mounted.

(2) Screw mounting (Measuring unit + optional unit)

）

ening torque: 0.63N・m

Recommended screws

and flat washer

ening torque: 0.63N・m

tolerance in panel cut.

If you want to prevent dust and other intrusion the gap of panel cut,

cut the panel according to the product to be mounted.

(8/71)

(3) Screw mounting (When using the measuring unit and the attachment for panel mounting)

Dimensions of hole panel（76×44.5

Attaching

Dimensions of hole panel (101×44.5)

Attaching

Tightening torque: 0.63N・m

Plate

Attachment for panel mounting

Attach the plate by using 2 screws, then install the attachment on the plate. Tight

Mounting screws

Screws for panel

Plate

Attachment for panel mounting

Mounting screws

Screws for panel

*Please screw up the panel mounting attachment where there are high

Outline of the measuring unit

*Please screw up the panel mounting attachment where there are high

Outline of the measuring unit

Outline of the option unit

*Panel cut dimensions are made larger than the product considering

cut the panel according to the product to be mounted.

*Panel cut dimensions are made larger than the product considering

）

tolerance in panel cut.

If you want to prevent dust and other intrusion the gap of panel cut,

cut the panel according to the product to be mounted.

mounting

ening torque: 0.63N・m

levels of vibration.

*The screws (mounting screws and screws for panel mounting

attachment) are supplied with panel mounting attachment.

attachment

(4) Screw mounting (Measuring unit + optional unit, when using the attachment for panel mounting)

tolerance in panel cut.

If you want to prevent dust and other intrusion the gap of panel cut,

Attach the plate by using 2 screws, then install the attachment on the plate (Use the attachment to cut the three points as below).

Attachment for panel mounting

Cut off

mounting attachment

levels of vibration.

*The screws (mounting screws and screws for panel mounting

attachment) are supplied with panel mounting attachment.

(9/71)

5. Procedure for wiring

Wiring for EMU4-FD1-MB

Rating voltage for every phase wire system

Phase wire type

Type

Rating voltage

Figure

3-phase 4-wire type

STAR

max AC277V(L-N)/480V(L-L)

Figure 1

DELTA

max AC220V(L-L)

Figure 2

STAR

max AC440V(L-L)

Figure 3

1-phase 3-wire type

―

max AC110V(L-N)/220V(L-L)

Figure 4

1-phase 2-wire type

(Note)

DELTA

max AC220V(L-L)

Figure 5

STAR

max AC440V(L-L)

Figure 6

maximum rating is “AC440V”.

3-phase 3-wire type

Note. In case of a circuit which is wired from the delta connection of a 3-phase 3-wire type, a circuit of a transformer of a

1-phase 2-wire type or a 1-phase 3-wire type, the maximum rating is “AC220V”.

In case of a circuit which is wired from a 3-phase 4-wire type or the star connection of a 3-phase 3-wire type, the

(10/71)

* Fuse is required to conform to UL.

grounding the secondary side of VT and CT.

*2,3,4（refer to next page）

*1,4（refer to next page）

*2,3,4（refer to next page）

*1,4（refer to next page）

(See*3)

(See*4)

(See*3)

(See*2)

Note 1: For low voltage circuits, do not connect to

(11/71)

Applicable wire

Tightening torque

Recommended crimp-type terminal

Auxiliary power, voltage

stranded wi re: AW G26-14(0.13～2.0mm2) single wire : AW G26-14(φ0.41～1.62mm)

0.8～1.0N・m

For M3.5 screw of external diameter below 5.6mm

Current input terminals

stranded wi re: AW G18-14(0.82～2.0mm2) *5 single wire : AW G18-14(φ1.03～1.62mm)

0.5～0.6N・m

For M3 screw of external diameter below 5.6mm

Input and output terminals

stranded wire : AWG22-14(0.33～2.0mm2) single wire : AW G22-14(φ0.65～1.62mm)

0.5～0.6N・m

For M3 screw of external diameter below 5.6mm

*1 For low voltage circuits, do not connect to grounding the secondary side of VT and CT.

Condition

distance

Power line 600V or less

300mm or longer

Other power line

600mm or longer

No-voltage a-contact Use an appropriate type for 5V DC 7mA switching.

No-voltage a-contact 35V DC 24V AC 75mA (power factor : 1)

No-voltage a-contact 35V DC 24V AC 7 5m A (power factor : 1)

Transmitter

Counter

Relay

Caution

*2 When this unit is used at a high voltage circuit, the terminal P0 (P2) must be connected to ground. *3 When grounding a CT line, please make the L side of the CT a common line and connect 1L,2L,3L terminal

for the unit side by the shortest course.

*4 When connecting the L side of the CT by a common line, please connect 1L, 2L, 3L terminal for the unit

side by the shortest course.

・ For protection against noise, transmission lines and input/output lines shall not be placed close to or bound

together with the power lines and high-voltage lines. Keep distance as below between them. (except for the terminal block)

・ For the actual usage, connect the FG terminal to ground. (D-type ground: Type 3) Connect it directly to the

ground terminal. This is being bonded to the conductive part of the product for safety reasons and being connected to the terminal which is connected the outside protection grounding system.

・ Do not connect to FG terminal during the insulation resistance test and pressure test. ・ Do not connect together more than one EMU4-FD1-MB on the secondary side of a current transformer. ・ Do not connect together other units and EMU4-FD1-MB on the secondary side of a current transformer.

･ Use appropriate crimp-type terminal. Appropriate crimp-type terminal is as below. ･ Use electric wires as below, and tighten the terminal screws by the torque as below.

input terminals

*5: If the diameter of the wire is small, the conductor resistance of the wire will be high and the consumption VA of the wire will increase.

･ Maximum voltage of the circuit connected to this unit directly is 277 / 480V. For the circuit over this voltage, use the transformer.

Decide wire diameter and wire length so that it does not exceed the rated burden of CT to be connected.

Using the transformer, primary voltage is configurable up to 6600V. (Primary voltage of VT can be set up to 6600V, and secondary voltage of VT can be set up to220V as optional setting.)

･ For MODBUS

NET transmission from MODBUS

RTU communication wiring, recommended to have the extra length wires about 200mm (When extended to B /

communication, use of MODBUS

･ When screwing the terminals at both ends of the terminal block, be careful not to touch the projection of the terminal block cover. ･ In case using external input and/or external output, refer to the following.

External input：For the case of contact input External input: For the case of pulse input

External output：For the case of contact output External output: For the case of pulse output

75mA or,

RTU communication wiring is possible).

75mA or,

(12/71)

System configuration example of MODBUS®RTU communication

Installation in the middle of the

Installation at the end of the

MODBUS®RTU

・Connection of MODBUS®RTU communication terminals:

1. Use the twisted shielded pair cable for transmission lines.(Recommended cable page 66.)

2. About the terminal resistance of the MODBUS

RTU transmission line

・Please get terminal resistance of 120 Ω to the apparatus of transmission line both ends.

(Termination resistances of 120Ω can be used by short-circuiting “485-” and “Ter” terminals.)

・When you are connected to the PLC on transmission line one, please get terminal resistance of 110 Ω in the PLC side.

(Please refer to Page14, "・Wiring for MODBUS

UNIT(QJ71MB91) and EMU4-FD1-MB "

for the details.)

・When you are connected to the GOT on transmission line one, please get terminal resistance of 110 Ω in the GOT side.

(Please refer to Page14, "・Wiring for GOT（GOT1000） and EMU4-FD1-MB " for the details.)

3. Connect to ground by using thick wires to decrease impedance.

4. MODBUS

RTU transmission lines shall not be placed close to or bound together with the high-voltage lines.

5. Ground the “SLD” terminal at one end.

・wiring terminal

EMU4-FD1-MB

485+

SLD

485-

Ter

・Procedure for wiring

transmission rout

Connect to Terminal

transmission rout

(13/71)

・Wiring for MODBUS®UNIT(QJ71MB91) and EMU4-FD1-MB

Note) The terminal resistance of the MODBUS

unit (QJ71MB91) side, please connect "110Ω 1/2W".

For details, please refer to "Mitsubishi frequent use sequencer MELSEC-Q Series (QJ71MB91)

MODBUS

interface unit (details).“

・Wiring for GOT(GOT1000) and EMU4-FD1-MB

Note) Please set the terminal resistance of the GOT(GOT1000) "110 Ω".

Please of the setting method refer to " GOT1000 Series Connection Manual (Microcomputer, MODBUS

Products, Peripherals) for GT Works3".

(14/71)

6. Operating mode

This unit has the operating modes. Switch these modes according to the purposes. The operating mode is displayed

Mode

Function

Reference

Operating mode

Display measured value digitally. It can display the condition of contact input and present time (*1) other than the present value of the measured values.

Setting mode

Set basic setting for phase wire method, primary voltage, primary current and alarm monitoring for alarm output elements.

Confirmation

Mode to confirm the setting value for each setting item.

Display useful to discriminate for incorrect wiring such as phase angle display of voltage,

Send back fixed numerical data without measurement (voltage and current) input.

Reset mode / Preset mode

Reset: Integrated values (electric energy, operating time, etc.) can be zeroed. Preset: Preset of electric energy and reactive energy.

Preset mode

Operating mode

Present value

display

＋

Press both at the s ame time for 2 sec

SET

Press for 2 s ec

When selecting "End"

on the menu

SET

CANCEL

display

Cancel change of

setting value

SET

End

display

Fix change of s etting value

When selecting

"End" on the menu

SET

＋

－

Setting mode

immediately after the auxiliary power loading.

page 49

page 16

mode (Test mode)

(The Setting cannot be changed in this mode, so it can be prevented setting change by human error.) In addition, this unit

has the test function that can be used for such as set up of an equipment.

･ Discrimination support display for incorrect wiring:

current.

･ Pulse, Alarm test:

Switch pulse output contact and alarm contact without measurement (voltage and current) input.

･ Communication test:

*1: Only when connecting logging unit.

page 30 page 34

page 56

(15/71)

7. Setting method

Procedures for setting

Setting menu 5 related to the logging Unit is shifted to Setting mode from Operating mode, and

Please check them beforehand.

page 31

Phase wire system

Factory default

Primary v oltage

(use or non-use of

VT)

Primary v oltage

(With VT o r Direct)

Primary current

Secondaryc urrent

Curre nt demand

ti me

Model Name

MODBUS®RTU

addre ss

MODBUS®RTU

baud ra te

MODBUS®RTU

pari ty

MODBUS®RTU

sto p bit

Contac t / pulse

input

Reset method

of c ontact inp ut

Contac t / pulse

output

"End" display

Unit amount o f

pulse output

※3

Equival ent CO2

indication

※4

CO2 conversion

fact or

※5

Harmonic current

indication

Harmonic voltage

indication

Operating time

indication

Counting method

of operating time

※2

Primary spec ial

voltage

Secondary special

voltage

Primary v oltage

(VT voltage)

※1

※2

Opera ting mode

Meas urement dis play

Fix of setting value cha nge

Canc el o f se tting value cha nge

"CANCEL" di spla y

Transition automatically

Example of s ett ing mode dis play

Example of confirmation mode dis play

End of setting menu

Setting menu 1

Basic setting

Setting menu 2

Comm unication s etting

Setting menu 3

Input/output s etting

For the special voltage (SP)

(Not available for 1P3W)

※11

- / RESET

SET

+ / PHASE

- / RESET

SET

Set items such as phase wire system, primary voltage, and primary current in the setting mode to measure and monitor. Under normal use, it shall be sufficient to set the setting menu 1 (Basic setting) only. For details, refer to after the following page.

(1) Go into the setting mode by pressing both and at the same time for 2 sec.

(2) Select the setting menu number by pressing or .

(3) Determine the setting menu number by pressing .

(4) Set each setting item.

(5) After all setting are done, select “End” on the setting menu and press . (6) When prompted for End display, select “End” and press .

･

Caution

Please go in a procedure to set only Setting menu 5.

・If you change setting, related setting items and measured data are initialized.

page

(16/71)

Procedures for setting

Function

Operation

Supplement

Press or .

After setting value is confirmed, transition to next item.

Go back the previous setting item

Press .

Go back to setting menu during setting

Press for one second.

Reset setting values to factory default.

"DISP"

＋ "－"

Press once

Canc el cha nge of setting v alue.

"SET"

Press once

Skip o ther ite ms during s etting.

"SET"

Press for 1 sec

Memorize changed setting and transition to operating

mode.

"SET"

Press once

Select "CANCEL".

"+" or "-"

Press once

No dis play

Sele ct s ett ing v alue.

"+" or "-"

Press several times

Trans iti on to "End" dis play.

"SET"

Press once

Enter each setting display or transition to next item.

"SET"

Press once

Go bac k to previ ous set ting di splay.

"DISP"

Press once

Transition from operating mode to confirmation mode

"SET"

Press for 2 sec

Sele ct menu number or "E nd".

"+" or "-"

Press several times

Sy mbol

Behavior

Operation of control button

Transition from operating mode to setting mode.

"SET" + "-"

Pres s both at t he

same time for 2 sec

Use of upper /

lower limit alarm

Upper / lower limit

alarm el eme nt

Upper / lower limit

alarm value

Alarm delay time

Alarm rese t

method

Logging module

Logging data clear

conf irmation

Test mode

※6

※10

Setting menu 4

Alarm s etting

Setting menu 5

MODB US®TCP setti ng / Logging setting

Setting menu 6

Test mode

Setting mode or confirmation mode

※1: On confirmation mode, transition to operating mode.

※2: Transition only when selecting "SP" for "Primary v oltage

(VT or direct voltage)" on Setting menu 1.

(For 3P4 W, only spe cia l volt age i s ava ilable when usi ng VT.)

※3: Tra nsit ion only whe n s electi ng "CO. P." for "Cont act /puls e

input".

※4: Trans iti on o nly whe n s elec ti ng "PLS" for "Co ntac t/pulse

output ".

※5: Transi tio n only whe n se lect ing "on" f or "Equiva lent CO2

indic ati on".

※6: Trans iti on only when s elec ting "o n" for "Use of upper/lo wer

li mit ala rm".

※7: Trans iti on only when c onnec ting MODBUS®T CP module. ※8: Trans iti on only when s elec ting "o n" for MODBUS®TC P

Default G/W existence".

※9: Transi tio n only whe n co nnect ing loggi ng module. ※10: Not dis play ed o n se tti ng mode. ※11: The followi ng data is not c lear ed.

Elec tri c ene rgy (consumptio n, r egene rat ion) , Reactive energy, Equiv alent C O2 (hi de), Operation time (hide)

Whe n sele ct ing "CO. P."f or "Count ing metho d of ope rat ing

※7

US®TCP

※9

ault G/W

Reset

※8

DISP

+ / PHASE

- / RESET

SET

･ Basic operations in setting

Choose setting value

confirm setting value

Press .

Press for more than one second to fast-forward

Setting value of the last item before return is effective.

(17/71)

Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc.

In this menu, set phase wire system, primary voltage, primary current, demand time, etc.

- / RESET

SET

In operating mode, press both and at the same time for more than two seconds to transition to setting

mode and enable the following operations.

Setting menu

Choose the setting menu 1. (As shown in the left figure)

SET

DISP

(1) Phase wire system

SET

DISP

(2) Primary voltage

(Use or non-use of VT)

SET

DISP

Set according to the phase wire system for the measured circuit.

3P4: Three-phase 4-wire 1P2: Single-phase 2-wire

1P3: Single-phase 3-wire 3P3: Three-phase 3-wire

Supplement: The underlined values are the defaults. (The same shall apply hereinafter.)

If you measure directly (i.e. without VT):

→Choose “no” and press to transition to (3) Primary voltage (Direct).

SET

If you measure with VT:

→Choose “yES” and press to transition to (4) Primary voltage (VT).

Supplement:

“VT” means Voltage Transformer.

yES

SET

<In case you choose “1P3” in (1) Phase wire system> You can use direct measurement only. Setting of primary voltage is skipped and setting is started from (7) Primary current Rated voltage between 1- and 2-phase and 2- and 3-phase is 110V, and that between 1- and 3-phase is 220V.

Set the direct voltage according to voltage of the measured circuit

･ In case you choose “3P4”in (1) Phase wire system

(3) Primary voltage

(Direct)

63.5V/110V 100V/173V 105V/182V

110V/190V

115V/199V 120V/208V 127V/220V 200V/346V

220V/380V 230V/400V 240V/415V 242V/420V 250V/430V 254V/440V 265V/460V 277V/480V

･ In case you choose “3P3” or “1P2”in (1) Phase wire system

SET

DISP

110V 220V 440V

(18/71)

Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc.

(4) Primary voltage

Set the primary voltage of combined VT

690V 1100V 2200V 3300V 6600V SP

(with VT)

SET

(5) Special primary

voltage

DISP

Caution: If there is no values above you want to set to, choose “SP” to enable the special primary voltage and the special secondary voltage. In case you choose “3P4” (three-phase 4-wire system) in (1) Phase wire system, the special voltage is only available.

If you choose “SP”, transition to “ (5) Special primary voltage”.

If you choose the value except for “SP”, transition to “(7) Primary current ”.

(In this case, secondary voltage is fixed to 110V.)

Set the special primary voltage of combined VT.

･ Setting range: 1V to 6600V

Default value is 690V

Setting of special primary voltage

･ Press or to choose the value at flashing digit. ･ Press for the setting digit (flashing digit) to shift to lower. ･ Press for the setting digit (flashing digit) to shift to upper. ･ You can set the upper three digit of the value to the range of 1V to 6600V.

･ Press at the lowest digit to transition to “(6) Special secondary voltage”.

SET

DISP

Caution: In case you set the value except for between 1V and 6600V, indicate the error (E005).

When indicating the error, press to check the setting values and set the new value again.

SET

The values set the upper fourth digit and lowers to are rounded down. After setting value flashes

three times, transition to “ (6) Special secondary voltage”.

- / RESET + / PHASE

SET

(6) Special secondary

SET DISP

voltage

SET DISP

Set the special secondary voltage of combined VT.

･ Setting range: 1V to 220V

Default value is 110V (for three phase 3-wire system and single-phase 2-wire system), or 64V (for three-phase 4-wire system).

Setting of special secondary voltage

･ Press at the lowest digit to transition to “(7) Primary current”.

SET

DISP

Caution: In case you set the value except for between 1V and 220V, indicate the error (E005).

When indicating the error, press to check the setting values and set the new value again.

SET

- / RESET + / PHASE

SET

(19/71)

Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc.

(7) Primary current

Set the primary current of combined CT.

1A 5A 6A

7.5A

10A 12A 15A 20A 25A

30A

40A 50A 60A 75A 80A

100A 120A 150A 200A

250A 300A 400A 500A 600A 750A

800A 1000A 1200A 1250A

1500A 1600A 2000A 2500A 3000A 4000A 5000A 6000A

Supplement: “CT” means Current Transformer.

Supplement: If there is no values above you want to set to, choose “SP” to

enable the special primary current.

If you choose “SP”, transition to “(8) Special primary current”.

If you choose the value except for “SP”, transition to “(9) Secondary current”.

SET

DISP

Set the special primary current of combined CT.

･ Setting range: 1A to 6000A (Default: 100.0A)

Setting of special primary current

･ Press or to choose the value at flashing digit.

(8) Special primary

current

･ Press for the setting digit (flashing digit) to shift to lower. ･ Press for the setting digit (flashing digit) to shift to upper. ･ You can set the value in the range from 1A to 6000A.

･ Press at the lowest digit to transition to “(9) Secondary Current”.

SET

DISP

(9) Secondary current

Set the secondary current of combined CT.

- / RESET + / PHASE

SET

DISP

If the value is less than 10A, you can set upper two digits of it. If the value is 10A or more, you can set upper three digits of it.

Caution: In case you set the value except for the range from 1A and 6000A, indicate the error

(E005). When indicating the error, press to check the setting values and set

the new value again.

SET

5A 1A

SET DISP

(20/71)

Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc.

(10) Current demand

Set the current demand time. On setting display, “s” means “second” and “M” means “minute”.

time

SET

(11) Electric power

demand time

SET

(12) Model code

DISP

0s 10s 20s

Set the electric power demand time. On setting display, “s” means “second” and “M” means “minute”.

The model code can be confirmed.

(This is only display, and settings cannot be changed.)

30s

0s 10s 20s 30s

40s 50s

1M 2M

40s 50s

1M 2M

3M 4M 5M 6M

7M 8M 9M

10M

7M 8M 9M

10M

11M 12M 13M 14M

15M 20M 25M 30M

SET

Setting menu

DISP

Complete the setting or continue in other menu according to procedures for setting.

For procedures for setting, page 16

(21/71)

+ 51 hidden pages

Mitsubishi Electric EMU4-FD1-MB User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety precautions

Features

Table of Content

1. Precautions for Use

Precautions for Operating Environment and Conditions

Matters concerning the precaution before use

Installation and Wiring Precautions

Precautions for Use

Maintenance Precautions

Storage Precautions

Disposal Precautions

About packaging materials and this manual

2. Disclaimer

3. Name and function of each part

4. Attaching and removing the unit

5. Procedure for wiring

Wiring for EMU4-FD1-MB

System configuration example of MODBUS®RTU communication

6. Operating mode

7. Setting method

Procedures for setting

Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc.