Mitsubishi Electric EMU4-FD1-MB User Manual

LY304Z278H06
Energy Measuring Unit
Model EMU4-FD1-MB
User's 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 User's manual (Details) of this unit from the following site.
https://www.mitsubishielectric.com/fa/
1. Features
(1) This Energy Measuring unit can measure various types of electric quantity such as voltage, current, electric power and electric energy using a generalized current transformer.
(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.
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 trademark of Schneider Electric USA Inc.
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) User's 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 overvoltage category 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 +55°C.
・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.
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.
(Indoor use)
For the precautions for the compliance of the system incorporating this unit with the EMC Directives, refer to the User's 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) is necessary before use it. Please refer to User's Manual (Details) about each setting method.
3.3 Installation and Wiring Precautions
Any person who is involved in the installation and the wiring of this unit should be fully competent to do this work.
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.
・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.
・This equipment is class A as per EN55011. This equipment is not intended for use in residential environments and may not provide adequate protection to radio reception in such
environments.
・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.
・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.
・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.
Caution
・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 100Ω).
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 a current transformer whose secondary current is 5A or 1A (max 30V AC).
・A current transformer has a polarity. 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.
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.
Caution
・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
(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
Caution
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.
・Places the Ambient temperature exceeds the range -10 to +60°C.
・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 +35°C.
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.
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.
･Places the average daily temperature exceeds +35°C.
・Dust, corrosive gas, saline and oil smoke exist.
・Vibration and impact exceed the specifications.
・Places metal fragments or conductive substance are flying.
・Places the Relative humidity exceeds the range 30 to 85% or places with dewfall.
(c) No abnormal noise, smell or heat
・Vibration and impact exceed the specifications.
・Places exposed to rain, water drop or direct sunlight.
・Places metal fragments or conductive substance are flying.
4. Name and function of each part
4.1 Name of each part
(1) Front view (2) Back view
Frame GND terminal
Voltage input terminals
Power supply terminals
LCD
display
Operation
button
Contact/ pulse output terminals
Current input terminals
Contact/ pulse input terminals
Communication terminals (MODBUS RTU)
4.2 Functions of operation buttons
Control buttons have many functions as below.
Meaning of symbol: ○ (Press), □ (Press more than 1 sec), ◎ (Press more than 2 sec), ― (Press both at the same time)
Operation Name of Button
DISP button
Mode
SET -/RESET +/PHASE DISP
Change measured items
○
+/PHASE button Change phase
○
○ Change harmonic order (at harmonic display)
-/RESET button Clear alarm (at alarm keeping)
◎
Transition to confirmation mode
◎
Operating
SET button Transition to setting mode
Mode ◎ ◎
Contact
◎ Clear contact latch
display
Integrated ◎ ◎ Transition to preset display
value
◎ ◎ Transition to reset display of all data
display
○ Enter setting menu
Menu
○ ○ Moving up or down of menu number
display
(Move at fast speed when pressing more than 1sec)
(□) (□)
Change of setting items (forward)
○
Transition to setting menu number (at final setting item)
Setting
Moving up or down of setting value
○ ○
mode /
(□) (□) (Move at fast speed when pressing more than 1sec)
Setting
Change setting items (backward)
display
○
Transition to setting menu number (at beginning setting item)
Setting mode
Go back to setting menu
□
/
Change setting items (forward)
○
Confirmation
Confirmatio Confirmation
Transition to setting menu number (at final setting item)
mode
n mode / mode /
○ Change setting items (backward)
Setting Setting
Transition to setting menu number (at beginning setting item)
display display
Transition to setting menu
□
At "END" display, memorize changed setting and transition to
operating mode
Confirmation Confirmatio
○
At "CANCEL" display, annul changed setting and transition to
display of
n display of
operating mode
setting setting
Moving up or down of setting value
reflection ○ ○
reflection
Reset setting values to factory default (only effective at
◎ ◎
CANCEL display)
5. Procedures for setting
Operating mode Setting mode or confirmation mode
Setting menu 1 Setting menu 2 Setting menu 3
Measurement display
End of setting menu Basic setting Communication setting Input/output setting
※1
"End" display
Phase wire MODBUS RTU
address
Fix of setting system
value change
Primary voltage
MODBUS RTU
"CANCEL" display
(use or non-use baud rate
of VT)
Cancel of setting
value change
※2
Primary voltage
MODBUS RTU
(With VT or
parity
Direct)
※11
Transition automatically
MODBUS RTU
Primary current
stop bit
Factory default
Secondary
current
Example of setting Example of confirmation
mode display
mode display
Current
demand time
※2
For the special voltage (SP)
(Not available for 1P3W)
Power demand
Primary voltage
time
(VT voltage)
Primary special
Model Name voltage
Secondary
special voltage
Names of signals of terminal block
Terminal
Function Description
symbol
P1/P1,P2/P0, Input voltage Connect the voltage input wire for the
P3/P3,NC/P2 measurement circuit.
Frame GND(FG) Connect to ground (D type ground).
(Protective earthing *1)
MA、MB Auxiliary power Connect the auxiliary power supply.
1k, 1L, 2k, 2L, Input current Connect the secondary output of the
3k, 3L current transformer (CT) connected to
the measurement circuit's current wire.
485+, 485- MODBUS RTU Connect the
communication (MODBUS RTU).
SLD Connect to ground (D type ground).
Ter Connect the "485- "terminal (the unit at
end of the link).
X1、COM Pulse input/ Connect the contact/ pulse input wire.
X
Contact input
Y1、COM Pulse output/ Connect the contact/ pulse output wire.
Y
Contact output
*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.
IEC rail
fixture
4.3 Functions of LCD
Event
2
3
4
5
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 Light when measuring electric energy (consumption).
Measurement
5 Setting Indicator lights on setting mode.
SET
Indicator lights on confirmation mode.
SET
Setting menu 4 Setting menu 5 Setting menu 6
Alarm setting MODBUS TCP setting / Logging setting Test mode
※7 ※9 ※10
Contact / pulse Use of upper
Logging
input / lower limit MODBUS TCP Test mode
IP address module ID
alarm
※3
※6
Reset method
of contact input
Logging data
Upper / lower
MODBUS TCP
clear
limit alarm
Subnet mask
confirmation
element
Contact / pulse
output
Upper / lower MODBUS TCP
limit alarm Default G/W
※1: On confirmation mode, transition to operating mode.
※4 value existence
※2: Transition only when selecting "SP" for "Primary voltage
Unit amount of (VT or direct voltage)" on Setting menu 1.
(For 3P4W, only special voltage is available when using VT.)
pulse output
※8 ※3: Transition only when selecting "CO.P." for "Contact/pulse
input".
※4: Transition only when selecting "PLS" for "Contact/pulse
Alarm delay MODBUS TCP
Default G/W output".
time
Equivalent CO2 ※5: Transition only when selecting "on" for "Equivalent CO2
indication indication".
※6: Transition only when selecting "on" for "Use of upper/lower
limit alarm".
※7: Transition only when connecting MODBUS TCP module.
※5
※8: Transition only when selecting "on" for MODBUS TCP
MODBUS TCP
Alarm reset Default G/W existence".
CO2 Reset
method ※9: Transition only when connecting logging module.
conversion
※10: Not displayed on setting mode.
factor
※11: The following data is not cleared.
Electric energy (consumption, regeneration),
Reactive energy,
Equivalent CO2 (hide),
Operation time (hide)
Harmonic
When selecting "CO.P."for "Counting method of operating
time", operation time is cleared.
current
indication
Symbol Behavior Operation of control button
Press both at the
Transition from operating mode to setting mode. "SET" ＋ "－"
same time for 2 sec
Harmonic
Transition from operating mode to confirmation mode. "SET" Press for 2 sec
voltage
Select menu number or "End". "＋" or "－" Press several times
indication
Enter each setting display or transition to next item. "SET" Press once
Go back to previous setting display. "DISP" Press once
No display Select setting value. "＋" or "－" Press several times
Transition to "End" display. "SET" Press once
Operating time
Memorize changed setting and transition to operating
indication "SET" Press once
mode.
Select "CANCEL". "＋" or "－" Press once
Cancel change of setting value. "SET" Press once
Skip other items during setting. "SET" Press for 1 sec
Reset setting values to factory default. "DISP" ＋ "－" Press once
Counting method
of operating time
communication wire
1