Mitsubishi Electric EMU4 BD1 MB v2 User's Manual
en
Energy Measuring Unit Model EMU4-BD1-MB
EMU4-HD1-MB Users Manual (Digest) Before using this unit, please read both this manual and Details carefully and pay attention to safety to handle this unit correctly. Make sure that the end users read this manual and then keep the manual in a safe place for future reference. ABOUT MANUALS You can download Users manual (Details) of this http://www.mitsubishielectric.com/fa/worldwide/index.html
unit from the following site.
1. Features (1) This Energy Measuring unit can measure various types of electric quantity such as voltage, current, electric power and electric energy. (2) The measurement data can also be transmitted to superior monitoring systems through MODBUS RTU communication. (3) In addition to the provision for measuring the quantity of electricity, the unit has two external input ports supporting both pulse input and contact input by way of switching (EMU4-HD1-MB).
With pulse input set, you can measure the production volume or the utility other than electricity, such as water, gas and air. With contact input set, you can monitor status or alarm and measure the operating time of facility or the operating power.
MODBUS is a registered trademark of SCHNEIDER ELECTRIC USA, INC in the United States. 2. Checking package contents This following items for this device and included in package. Check that no items are missing. (1) Energy Measuring unit x1 (2) Users Manual (Digest) x1
3. Safety Precautions 3.1 Precautions for Operating Environment and Conditions
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 CAT III*, and that of auxiliary power circuit (MA, MB) is CAT 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 to +55C. Places the average daily temperature exceeds +35C.
Dust, corrosive gas, saline and oil smoke exist. Vibration and impact exceed the specifications. Places metal fragments or conductive substance are flying.
Altitude exceeds 2000m. Places in strong electromagnetic field or places large amounts of external noise exist. Places exposed to direct sunlight Places exposed to rain or water drop. Places the Relative humidity exceeds the range 30 to 85% or places with dewfall.
This unit is the open type device, which are designed to be housed within another device for prevention of electric shock. House this unit within the device such as the control panel before use. For the precautions for the compliance of the system incorporating this unit with the EMC Directives, refer to the Users Manual (Details). *: For the definition of the pollution degree and the over voltage category, refer to EN61010-1/2010.
3.2 Matters concerning the precaution before use Use the unit in the specified usage environment and conditions. The setting of this unit (phase system, primary voltage and primary current, sensor type) is necessary before use it. Please refer to Users Manual (Details) about each setting method.
3.3 Installation and Wiring Precautions Danger Shut off the external power supply for the unit in all phases before installing or wiring. Failure to do so may cause an electric shock or damage of this unit.
3.4 Precautions for Use 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. Do not disassemble or modify this unit. It may cause failure, malfunction, injury or fire. Do not touch the live part such as connection terminal. It may cause electric shock, electric burn injury or burnout of the device. If any exposed conductor is found, stop the operation immediately, and take an appropriate action such as isolation protection.
3.5 Maintenance Precautions 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 (c) No abnormal noise, smell or heat
(2) Periodical maintenance (Once every 6 months to 1 year) No looseness with installation and wire connection
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. In case a display unit is attached to a sensor unit, get off the display unit during maintaining or tightening terminals.
3.6 Storage Precautions 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.
Vibration and impact exceed the specifications. Places exposed to rain, water drop or direct sunlight. Places metal fragments or conductive substance are flying.
Places the Ambient temperature exceeds the range -10 to +60C. Places the Relative humidity exceeds the range 30 to 85% or places with dewfall. Dust, corrosive gas, saline and oil smoke exist. Places the average daily temperature exceeds +35C.
3.7 Disposal Precautions When disposing of this unit, treat it as industrial waste.
3.8 About packaging materials and this manual For reduction of environment load, packaging materials are produced with cardboard, and this manual is printed on recycled paper.
4. Name and function of each part 4.1 Name of each part
Terminal symbol
Description
P1/P1P2/P0 P3/P3NC/P2
Connect the voltage input wire for the measurement circuit. Connect to ground (D type ground). (Protective earthing *1)
MAMB Connect the auxiliary power supply. 1k1L2k2L 3k3L
Connect the secondary output of the dedicated current sensor connected to the measurement circuits current wire.
485+485- Connect the communication wire (MODBUS RTU).
SLD Connect to ground (D type ground). Ter Connect the 485- terminal (the unit at end of
the link). X1COMX Connect the contact/ pulse input wire. Y1COMY Connect the contact/ pulse output wire.
Terminal symbol
Description
P1P2P3 Connect the voltage input wire for the measurement circuit. Connect to ground (D type ground). (Protective earthing *1)
MAMB Connect the auxiliary power supply. 1k1L3k3L Connect the secondary output of the dedicated
current sensor connected to the measurement circuits current wire.
485+485- Connect the communication wire (MODBUS RTU).
SLD Connect to ground (D type ground). Ter Connect the 485- terminal (the unit at end of
the link).
(1) EMU4-BD1-MB (2) EMU4-HD1-MB Names of signals of terminal block (EMU4-BD1-MB)
Names of signals of terminal block (EMU4-HD1-MB)
(3) Back view
*1 It is being bonded to the conductive part of the product for safety reasons and being connected to the terminal which is connected the outside protectioin grounding system.4.2 Functions of operation buttons
4.3 Functions of LCD Control buttons have many functions as below. Meaning of sym bol: (Press), (Press m ore than 1 sec), (P ress m ore than 2 sec), ? (Press both at the sam e tim e)
SET -/RESET +/PHASE DISP Change m easured item s
Change phase Change harm onic order (at harm onic disp lay) Clear alarm (at a larm keeping)
Transition to confirm ation m ode Transition to setting m ode
Contact disp lay Clear contact latch
Transition to preset display
Transition to reset d isplay of a ll data
Enter setting m enu Moving up or down of m enu num ber
( ) ( ) (Move at fast speed when pressing m ore than 1sec) Change of setting item s (forward) Transition to setting m enu num ber (at final setting item )
Moving up or down of setting value ( ) ( ) (Move at fast speed when pressing m ore than 1sec)
Change setting item s (backward) Transition to setting m enu num ber (at beginning setting item )
G o back to setting m enu Change setting item s (forward)
Transition to setting m enu num ber (a t final setting item ) Change setting item s (backward)
Transition to setting m enu num ber (at beginning setting item ) Transition to setting m enu
At "END" d isplay, m em orize changed setting and transition to operating m ode At "CANCEL" d isplay, annul changed setting and transition to operating m ode
Moving up or down of setting value
Reset setting values to factory default (only effective at CANCEL d isplay)
O perating Mode
Integrated value
disp lay
Setting m ode /
Confirm ation m ode
Menu disp lay
Setting m ode / Setting disp lay
Confirm atio n m ode / Setting disp lay
Confirm atio n d isplay of
setting reflection
Operation Nam e of Button EventMode
No. Indicator Description
1 Measured value Display measured value digitally.
2 Measured item Display measured item displayed on indicator No.1.
3 Communication Light when connecting communication unit.
4 Energy
Measurement
Light when measuring electric energy (consumption).
5 Setting Indicator lights on setting mode.
Indicator lights on confirmation mode.
2
1 3 4 5
5. Procedures for setting
Symbol Behavior Operation of control button
Transition from operation mode to setting mode. "SET" + "-" Press both at the same time for 2 sec
Transition from operation mode to confirmation mode. "SET" Press for 2 sec
Select menu number or "End". "+" or "-" Press several times
Enter each setting display or transition to next item. "SET" Press once
Back to previous settting display. "DISP" Press once
No display Select setting value. "+" or "-" Press several times
Transition to "End" display. "SET" Press once
Memorize changed setting and transition to operation mode. "SET" Press once
Select "CANCEL". "+" or "-" Press once
Reset setting values to factory default. "SET" Press once
Cancel change of setting value. "SET" Press once
Skip other items during setting. "SET" Press for 1 sec
*13Setting of special secondary voltage Press "+/PHASE" or "-/RESET" to choose the value at flashing digit. Press "SET" for the setting digit (flashing digit) to shift to lower. Press DISP for the setting digit (flashing digit) to shift to upper. You can set the value to the range of 1V to 220V.
Caution: In case you set the value except for between 1V and 220V, indicate the error (E005). When indicating the error, press"SET"to check the setting values and set the new value again.
Press "SET" at the lowest digit to transition to (7) Sensor type. *14Supplement: If there is no values above you want to set to, choose SP to enable
the special primary current. *15Setting of special primary current
Press "+/PHASE" or "-/RESET" to choose the value at flashing digit. Press "SET" for the setting digit (flashing digit) to shift to lower. Press DISP for the setting digit (flashing digit) to shift to upper. You can set the value in the range from 5A to 6000A.
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 5A and 6000A, indicate the error (E005). When indicating the error, press"SET" to check the setting values and set the new value again.
Basic setting Setting menu 1
Factroy default
*1
Operation mode Setting mode or confirmation mode
*2
*3
(10) Special primary current
(9) Primary current(5A sensor)
(11) Current demand time
(12) Electric power demand time
(1) Phase wire system
Set according to the phase wire system for the measured circuit.
(5) Special primary voltage Set the special primary voltage of combined VT. Setting range: 1V to 6600V Setting of special primary voltage *12
(6) Special secondary voltage Set the special secondary voltage of combined VT. Setting range: 1V to 220V Setting of special secondary voltage *13
(7) Sensor type If you use direct sensor, choose dirEct and press"SET"
to transition to (8) Primary current (Direct). If you use 5A sensor, choose 5A and press"SET"
(8) Primary current (Direct sensor)
Set the primary current of combined CT (for direct sensor). After you choose the value, transition to (11) Current demand time.
Set the current demand time. On setting display, s means second and M means minute.
Set the electric power demand time. On setting display, s means second and M
(4) Primary voltage (with VT)
Set the primary voltage of combined VT Caution: *11 If you choose SP, transition to (5) Special primary voltage. If you choose the value except for SP, transition to (7) Sensor type.
Set the primary current of combined CT (for 5A sensor). Supplement: *14 If you choose SP, transition to (10) Special primary current If you choose the value except for SP, transition to (11) Current demand time.
Set the special primary current of combined CT. Setting range: 5A to 6000A (Default: 100.0A) Setting of special primary current *15
(2) Primary voltage (Use or non-use of VT)
If you measure directly (i.e. without VT): Choose no and press "SET"
to transition to "(3) Primary voltage (Direct)". If you measure with VT: Choose yES and press "SET"
to transition to "(4) Primary voltage (VT)". Supplement:VT means Voltage Transformer. In case you choose 1P3 in (1) Phase wire system
Set the direct voltage according to voltage of the
(3) Primary voltage
MODBUS baud rate
MODBUS address
Communication setting
MODBUS stop bit
MODBUS parity
Setting menu 2 Alarm setting Setting menu 4
Upper and lower limit alarm on or off
Upper and lower limit alarm item
Upper and lower limit alarm value
Alarm delay time
Alarm reset method
*4
*6
*7
Input/output Setting menu 3
Contact/pulse input
on or off
Reset method of contact input
Unit of pulse output
Contact/pulse output
on or off
*5
Display CO2 or not
CO2 conversion setting
Display harmonic current or not
Display harmonic voltage or not
Display operating time or not
Count method of operating time
*4
*4
Test mode Setting menu 6
Test mode
*9
Logging setting Setting menu 5
Logging module ID setting
Clear logging data
*8
Measurement display End of setting menu
"End" display
"CANCEL" display
"-" + "DISP"
Fix change of setting value
Cancel change of setting value
Transition automatically
Example of display on setting mode
Example of display on confirmation mode
*1: On confirmation mode, transition to operation mode. *2: Transition only when selecting "SP" for "Primary current (VT)".
(For 3P4W, only special voltage is available when using VT.) *3: Transition only when selecting "SP" for "Primary current (5A)". *4: Setting available for EMU4-HD1-MB only. *5: Transition only when selecting "CO.P." for "Contact/pulse input on
or off". *6: Transition only when selecting "PLS" for "Contact/pulse output on
or off". *7: Transition only when selecting "on" for "Display CO2 or not". *8: Transition only when connecting logging module. *9: Not displayed on setting mode. *10
You can use direct measurement only. Setting of primary voltage is skipped and setting is started from
"(7) Sensor type". Rated voltage between 1- and 2-phase and 2- and 3-phase is 110V,and that between 1- and 3-phase is 220V
*11Caution: 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. *12Setting of special primary voltage
Press"+/PHASE" or "+/PHASE" to choose the value at flashing digit.
Press "SET" for the setting digit (flashing digit) to shift to lower. Press "DISP" 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. Caution: In case you set the value except for between 1V and
6600V, indicate the error (E005). When indicating the error, press"SET"to check the setting values and set the new value again.
Press"SET"at the lowest digit to transition to (6) Special secondary voltage. The values set the upper fourth digit and lowers to are rounded down. After setting value flashes three times, transition to
If you are considering using this unit for special purpose such as nuclear power plants, aerospace, medical care or passenger vehicles please refer to our sales representative.
Caution
Caution
Caution
Contact/ pulse input terminals
Contact/ pulse output terminals
Voltage input terminals Frame GND terminal
Power supply terminals
Current input terminals Communication terminals (MODBUS RTU)
LCD display
Operation button
Frame GND terminal
Power supply terminals
Voltage input terminals
LCD display
Operation button
Communication terminals (MODBUS RTU)
Current input terminals
IEC rail fixture
DISP button
+/PHASE button
-/RESET button
SET button
SET
SET
SET
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, Strip the wires with proper length. Overlong stripping length may cause short to next wire. Shorter stripping length may cause contact failure.
transmission lines and input/output lines shall not be placed close to or bound together with the power lines and high-voltage lines.
Take care not to short to next terminal by a filament. (Do not plate the wires with solder.) Do not connect more than two 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. Tighten the screw within the specified torque. Under tightening can cause drop of the screw, short circuit or malfunction. Over tightening can damage the screw and/or unit, resulting in drop, short circuit or malfunction.
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. 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.
FG terminal must be grounded according to the D-type ground (ground resistance is not exceed 100). High-voltage protective element is mounted between MA and FG, MB and FG. When applied high voltage, for example during a commercial frequency withstand voltage test, protective element works to short between MA and FG, MB and FG. Do not directly touch any conductive part of the unit. Doing so can cause electric shock, failure or malfunction of the unit. When using this product, make sure to use it in combination with the current sensor (EMU-CT***, EMU-CT***-A, EMU2-CT5, EMU2-CT5-4W). Please not to exceed the rating of this product for input of the current sensor. For further details, please refer to the manual for the current sensor to maintain the functionality and the accuracy of this product.
The dedicated current sensor (EMU-CT***, EMU-CT***-A) is used only for low voltage circuit. It cannot be used for a high voltage circuit. EMU2-CT5 and CT5-4W should be used with the secondary side (5A) of transformer transfixed. If it is connected with a high-voltage circuit by mistake, it may cause a burnout of the device and a fire. It is critically dangerous. For the allowable maximum voltage of current sensor, refer to Users manual (Details) 13 Option devices (1) Specifications.
When using this product, make sure to use it in combination with current sensor (EMU-CT50/CT100/CT250/ CT400-A/CT600-A, EMU2-CT5 and EMU2-CT5-4W).Please not to exceed the rating of this product for input of current sensor. For further details, please refer to current sensor manual to maintain the functionality and the accuracy of this product. The dedicated current sensor (EMU-CT50/CT100/CT250/ CT400-A/CT600-A) is used only for low voltage circuit. It cannot be used for a high voltage circuit. EMU2-CT5 and CT5-4W should be used with the secondary side (5A) of transformer transfixed. If it is connected with a high-voltage circuit by mistake, it may cause a burnout of the device and a fire. It is critically dangerous. For the allowable maximum voltage of current sensor, refer to Users manual (Details) 13 Option devices (1) Specifications.
The dedicated current sensor has a polarity (directionality). Be careful about it when installing the unit. 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 the wires connected to this unit are strongly pulled off, it may cause a malfunction or a breakage to the unit or the wire. Do not exceed the specified voltage when doing an insulation resistance test and a commercial frequency withstand voltage test. 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.
6. Attaching and removing the unit
6.1 Mounting on IEC rail
6.2 Mounting on the panel
Recommended screws
cross recessed head screw with captive washer and flat washer M310 2pcs
Mount the unit to mounting plate by mounting screws (M310), then mount the panel mounting attachment. Tightening torque : 0.63Nm
Dimensions of hole panel(7644.5) The panel hole dimensions are as shown below. And it can be attached to a panel of thickness 1.6 to 4.0mm.
Mounting Dimensions of hole panel(7644.5) Mounting The panel hole dimensions are as shown below. And it can be attached to a panel of thickness 1.6 to 4.0mm.
Attached to the panel with screws (2pcs). Tightening torque : 0.63Nm
Outline of the unit Outline of the unit
Panel
Mounting screws
Panel
Panel mounting attachment
*Please screw up the panel mounting attachment where there are high levels of vibration. *The screws (mounting screws and screws for panel mounting attachment) are supplied with panel mounting attachment.
Mounting screws
Screws for panel mounting attachment
7. How to wire
7.1 Wiring Follow the wiring diagram for external connections of this unit. When using this unit, current sensor (EMU-CT50/CT100/CT250/CT400-A/600-A, EMU2-CT5 or EMU2-CT5-4W) is necessary.
3P4W (for high voltage circuit)
8. Dimensions
EMU4-BD1-MB EMU4-HD1-MB Unit [mm]
9. Specifications
Item Specifications Model EMU4-BD1-MB EMU4-HD1-MB
Phase-wire system Single-phase 2-wire, Single-phase 3-wire, and Three-phase 3-wire (common use)
Single-phase 2-wire, Single-phase 3-wire, Three-phase 3-wire, and Three-phase 4-wire (common use)
Measurement item
Electric energy (consumption, regeneration), Current, Current demand, Voltage, Electric power, Electric power demand, Reactive power, Power factor, Frequency, Reactive energy, Operating time
Electric energy (consumption, regeneration), Current, Current demand, Voltage, Electric power, Electric power demand, Reactive power, Apparent power, Power factor, Frequency, Harmonic current, Harmonic voltage, Reactive energy, Periodic electric energy, Pulse count value, Operating time, Equivalent CO2
Rating
Voltage circuit *1
single-phase 2-wire, three-phase 3-wire 110V, 220V AC 110V, 220V, 440V AC
single-phase 3-wire 110V AC (between 1- and 2-side, 2- and 3-side), 220V AC between 1- and 3-side
110V AC (between 1- and 2-side, 2- and 3-side), 220V AC between 1- and 3-side
three-phase 4-wire Min: 63.5V AC / 110V AC, Max: 277V AC / 480V AC
Current circuit
50A, 100A, 250A, 400A, 600A AC (The dedicated split type current sensor is used. Each value refers to the current at the primary side of the current sensor) 5A AC (The dedicated split type current sensor is used. 5A current sensor is used together with the current transformer (CT), and the primary-side current is configurable up to 6000A.) Secondary-side current is up to 66.66mA AC.
Frequency 50Hz / 60Hz Auxiliary power supply rating 100 to 240VAC (+10%,-15%),50Hz / 60Hz, Transient overvoltage 4,000V
Transient overvoltage Measuring circuit: CAT , Auxiliary power supply: CAT . Consumption VA*2 10VA ( 110V AC:9VA,220V AC:10VA)
Measurable circuit count 1 circuit
External input Input signal type
No voltage a-contact 1 input Rated input voltage/current
5V DC 7mA
External output Output signal type
No voltage a-contact 1 output Rated open/close voltage/current 35V DC 75mA or 24V AC 75mA Power factor = 1
Operating temperature -5 to +55 (Under the conditions indicated in section 3.1) Operating humidity 30 to 85RH (No condensation) Storage temperature -10 to +60 Operating altitude 2000m or below Standard(*3) UL: UL61010-1EMC: EN61326-1: 2013 Possible combination current sensor for UL EMU-CT50/100/250,EMU2-CT5,EMU-CT400-A/600-A EMU-CT50/100/250,EMU2-CT5/-4W,EMU-CT400-A/600-A Possible combination optional unit for UL EMU4-LM, EMU4-CM-C, EMU4-CM-CIFB *4
*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.
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) Condition distance High-voltage line 600V or less 300mm or more Other high-voltage line 600mm or more
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.
Caution
7.2 How to connect wires Use appropriate crimp-type terminal. Use electric wires as below, and tighten the terminal screws by the torque as below.
1P2W (for low voltage circuit)
Power source side
Load side
Split-type current sensor EMU-CT***(50/100/250) EMU-CT***-A(400/600)
K
L k
l
Fuse : 0.5A
1 2
P1 P2 P3 MA MB
1k 3k 485+ SLD
TerL1 L3 485-
RS485(MODBUS RTU)
1P3W/3P3W (for low voltage circuit) Power source side
Load side
Split-type current sensor EMU-CT***(50/100/250) EMU-CT***-A(400/600)
K
L k
l k
lK
L
Fuse : 0.5A
1 2 3
1 N 3
P1 P2 P3 MA MB
Ter485-
SLD485+
3L
3k
1L
1k
RS485(MODBUS RTU)
3P3W (for high voltage circuit) Power source side
Split-type current sensor EMU-CT5-A
Current transformer ***/ 5A
Load side
Contact/ pulse output Contact/ Pulse input
Fuse: 0.5A
K
L
K
L
l
k
k
l
P1/P1 P2/P0 P3/P3 NC/P2 MA MB
1k 2k 3k X1 Y1485+ SLD
1L 2L 3L 485- Ter COMx COMY
RS485(MODBUS RTU)
1 2 3
K
L
K
L
Voltage transformer
Power source side
K
L
K
L
K
L
Fuse: 0.5A
l
k
l
k
l
k
P1/P1 P2/P0 P3/P3 NC/P2 MA MB
1k 2k 3k X1 Y1485+ SLD
1L 2L 3L 485- Ter COMx COMY
K
L
K
K
L
L
1 2 3 0
Contact/ pulse output Contact/ Pulse input
Current transformer ***/ 5A
Load side
Split-type current sensor EMU-CT5-A
RS485(MODBUS RTU)
Voltage transformer
CL
CL
44 .5
27
76
67(Unit)
53 .5
(U n it )
2 4
(75)
(4 3.
5)
22 .5
CL
CL
44 .5
27
76
67(Unit)
53 .5 (U
n it )
2 2
54 .5 (A
tt a c h m
e n t)
106(Attachment)
4 4
28 (75)
(4 3.
5)
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.
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.
DISP
/PHASE
/RESET
SET
Model EMU4-HD1-MB
ELECTRIC
MITSUBISHI
ELECTRIC
MITSUBISHI
EMU4-HD1-MB
Model
DISP
/PHASE
/RESET
SET
6015
2 7 . 5
4 3 . 5
2 7
3 5 . 4
9 0
754
2 2 . 5
5 3 . 5
67
CL
15 60
27 .5
43 .5
27 35
.490
22 .5
4 75
53 .5
67
CL
* Fuse:P405H (by Daito Communication Apparatus Co., Ltd) equivalent. * For a low voltage circuit, grounding of the secondary sides of VT (or CT) is not necessary. Make sure that before connecting the cable, the orientation of the current sensor is correct for attachment. K to L is the correct direction. K: power source side, L: load side EMU-CT50, EMU-CT100, EMU-CT250, EMU-CT400-A,EMU-CT600-A are extendable up to 50m. EMU2-CT5, EMU2-CT5-4W are extendable up to 11 m, using together with a extension cable. To extend the wire further, use the current transformer CW-5S(L) for split-type instrument in combination, extending the secondary wiring on CW-5S(L) side. EMU-CT50/100/250/400-A/600-A is used only for low voltage circuit. (Maximum voltage: 460V) It cannot be used for a high voltage circuit. EMU2-CT5 and EMU2-CT5-4W should be used with the secondary side (5A) of transformer transfixed. If they are used for the circuit directly, they should be used under 200V. (Maximum voltage: 260V) Maximum voltage of the circuit connected to this unit directly is 260V for EMU4-BD1-MB, or 277 / 480V for EMU4-HD1-MB. For the circuit over this voltage, use the transformer. Using the transformer, primary voltage is configurable up to 6600V. secondary voltage is fixed to 110V. (special Primary voltage of VT can be set up to 6600V in any, and special secondary voltage of VT can be set up to 220V in any.) When screwing the terminals at both ends of the terminal block, be careful not to touch the projection of the terminal block cover. For MODBUS RTU communication wiring, recommended to have the extra length wires about 200mm (When extended to B / NET transmission from MODBUS RTU communication, use of MODBUS RTU communication wiring is possible). Do not ground the secondary side of the current sensor.
Device Model Connection terminal Optional Unit B/NET Communication Unit for Energy Measuring Unit EMU4-CM-B The connecter on the left side of the unit
CC-Link Communication Unit for Energy Measuring Unit EMU4-CM-C The connecter on the left side of the unit CC-Link IE Field Network Basic Communication Unit for Energy Measuring Unit EMU4-CM-CIFB The connecter on the left side of the unit Logging Unit for Energy Measuring Unit EMU4-LM The connecter on the left side of the unit
For the details of each device and the way to connect, refer to the manual of the device.
*1The transformer of star-delta connection and delta-star connection cant measure connectly because of the phase shifting. *2: The maximum value of consumption VA is described. *3When combine it with a B/NET Communication Unit(ModelEMU4-CM-B), it becomes out of a conformity standard. *4: EMU4-LM enables to memorize the data of various quantities related to electricity for a certain period. EMU4-CM-C is communication unit for CC-Link. EMU4-CM-CIFB is communication unit for CC-Link IE Field network Basic.
* 10. Optional devices connectable to this unit Optional devices connectable to this unit are as follows.
EMU4-BD1-MB Applicable wire Tightening
torque Recommended crimp-type terminal
Power supply terminals, voltage input terminals
AWG24 to 16 (0.5 to 1.2mm / 0.2 to 1.25mm2) (single wire / stranded wire)
0.8 Nm For M3 screw of external diameter below 5.6mm
Current input terminals, input/ output terminals
AWG22 to 16 (0.5 to 1.2mm / 0.3 to 1.25mm2) (single wire / stranded wire
0.5 to 0.6Nm For M3 screw of external diameter below 5.6mm
EMU4-HD1-MB Applicable wire Tightening
torque Recommended crimp-type terminal
Power supply terminals, voltage input terminals
AWG26 to 14 (0.5 to 1.6mm / 0.12 to 2.0mm2) (single wire / stranded wire)
0.8 to 1.0 Nm For M3.5 screw of external diameter below 5.6mm
Current input terminals, input/ output terminals
AWG22 to 16 (0.5 to 1.2mm / 0.3 to 1.25mm2) (single wire / stranded wire
0.5 to 0.6Nm For M3 screw of external diameter below 5.6mm
LVD: EN-61010-1: 2010
Caution
12. Warranty The warranty is effective until the earlier of 1 year after the date of your purchase or 18 months after manufacturing. Repair shall be charged for the case failures occur due to your intent or fault even during the warranty period.
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired Our company shall not be liable to compensate for any loss arising from events not attributable to our company, opportunity loss and lost earning of the customer due to failure of the product, and loss, secondary loss, accident compensation, damage to other products besides our products and other operations caused by a special reason regardless of our companys predictability.
If an abnormal sound, bad-smelling smoke, fever break out from this unit, switch it off promptly and dont use it
13. Customer Service
HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, Japan
Please refer to catalog or Users manual (Details) for more details.
11. Contained harmful substances
)
6
Pb
Hg
Cd
Cr(VI)
PBB
PBDE
LCD
(1)
(2)