Product Lineup
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Examples of
EcoMonitorLight
Applications
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Names and
Functions of
Each Part
Connection
Configurations
/Wiring Precautions
Communication
Unit Wiring and
Setting Procedures
Energy measuring
devices
Model Name/
Specifications
Safety
Precautions
Device
Installation
Procedures
Features
Memo
Product Lineup
Specifications
Examples of EcoMonitorLight Applications
External View
Names and Functions of Each Part
Connection Configurations /Wiring Precautions
Communication Unit Wiring and Setting Procedures
Energy measuring devices
Model Name/ Specifications
Safety Precautions
Device Installation Procedures
Features
Memo
36
35
12.Safety Precautions
●
Always be sure to use this unit in combination with a dedicated current sensor (EMU-CT50, EMU-CT100, EMU-CT250, EMU-CT400, EMU-CT600,
EMU2-CT5, or EMU2-CT5-4W). This unit cannot be directly connected to the secondary side (5 A) of a current transformer. Do not use a current sensor
input that exceeds the corresponding rating of this unit. Refer to the current sensor operation manual in order to maintain the functionality and accuracy of
this unit.
●
A dedicated current sensor (EMU-CT50, EMU-CT100, EMU-CT250, EMU-CT400 or EMU-CT600) is only used for low-voltage circuits. It cannot be used for
a high-voltage circuit. Use EMU2-CT5 or CT5-4W transfixed to the secondary side (5A) of transformer. Connecting with a high-voltage circuit by mistake is
extremely dangerous and can cause unit burnout or fire. Refer to “Specifications: Options (Split Current and 5A Current Sensors)” on p. 26 for maximum
voltages that can be used with current sensors.
●
Dedicated current sensors have a given polarity (directionality). Be careful to install in the proper polarity.
●
This unit cannot be used for transactions or proof of power use as stipulated by the Measurement Act.
●
Before operating this module, thoroughly check that there are no energized bare wires or similar hazards nearby. If there are any exposed conductors or similar
hazards, stop operation immediately and implement appropriate measures such as insulation protection.
●
A power outage while specify settings will result in such settings not being properly set. Specify the settings again after power has been restored.
●
Wipe off surfaces using a soft cloth. Do not allow any type of chemical cloth to remain touching the unit for an extended period, and do not use benzene,
thinner or similar chemicals for cleaning.
●
Check for the following items in order to ensure proper operation and long product life of this unit.
●
Before storage, turn off the power, remove wires, and place the unit in a plastic bag.
●
Do not store the module in the types of locations described below when storing for an extended period. Storing in such places can result in malfunction and
reduced service life.
●
Properly dispose of this unit in accordance with the Waste Disposal and Public Cleansing Act.
●
Packaging materials are made of cardboard and the operation manual is printed on recycled paper in order to reduce the load on the environment.
（
2
）
Periodic Inspection
Inspect the following items from every six months to one year.
・
There is no looseness in installation or wiring connections of terminals.
（
1
）
Daily Inspection
①
No damage to the unit
②
LED and LCD screens are operating properly.
③
There are no abnormal noises, odor, heat
generationor similar problems.
●
This unit is premised on being used in a pollution degree 2*
1
environment. Protect this unit from pollution on the side where another device is to be assembled
when using in an environment with a different pollution degree.
●
The measurement category of the measuring circuit in this unit is CAT II*
1
and the energization voltage category of the auxiliary power circuit (MA and MB) is
also CAT II.
●
Do not use this product in the types of locations listed below. Use in such locations can result in malfunctions and decreased product life.
●
Be sure that the installation location complies with operating environment and use conditions.
●
Be sure to specify the phase wire system, and primary voltage and current for each sensor type before operation.
Be sure to always read the operation manual before installation and connection.
●
This unit is an open type device, meaning that it is designed to be housed within another device in order to prevent electric shock. Be sure to always house this
unit within another device such as a grounded control panel before use.
●
It is necessary to implement either of the following measures for the control panel in order to protect persons lacking sufficient knowledge about electrical
equipment from electric shock.
・
Lock the panel so that only those who have been trained and have sufficient knowledge about electrical equipment can unlock the control panel, or structure the control
panel so that the power supply is automatically turned off when the panel is opened.
・
Cover the sections of this module having dangerous voltage. (Required protection code is IP2X or higher.)
*1:
Refer to EN61010-1/2010 for the definition of pollution degrees and measurement categories.
・
The ambient temperature exceeds the operating range temperature (-5 to +55 °C).
・
The relative humidity exceeds the operating range (30-85% RH) or the place where
condensation occurs.
・
There are large amounts of dust, corrosive gas, saline or oily smoke.
・
Exposed to rain or water drops.
・
Metal fragments or conductive substance are scattered.
・
The average daily temperature exceeds 35 °C.
・
There is excessive vibration or impacts.
・
Exposed to direct sunlight.
・
There is a strong electromagnetic field or there are large amounts of external noise.
・
The altitude exceeds 2,000 m.
・
The ambient temperature exceeds the storage range temperature (-10 to +60 °C).
・
The average daily temperature exceeds 35 °C.
・
There is excessive vibration or impacts.
・
Metal fragments or conductive substance are scattered.
・
The relative humidity exceeds the humidity range (30-85% RH).
・
There are large amounts of dust, corrosive gas, saline or oily smoke.
・
Exposed to rain, water drops or direct sunlight.
<Protection against Electric Shock>
＜Electrical Work Precautions＞
Precautions for Operating Environment and Conditions for Use
Precautions for Pre-operation Preparation
Precautions Regarding Use
Precautions for Maintenance and Inspection
Precautions for Storage
Precautions for Disposal
●
When the lithium battery is built in, please
process the lithium battery in accordance
with the rule of cities, towns and villages.
About disposal of the battery
About Packaging Materials and Operation Manual
Precautions for Installation and Connection
CAUTION
●
All installation and connection work must be performed correctly by technicians having specialized knowledge in matters such as electrical construction and
wiring.
●
Perform all installation and wiring work with the power turned off (no parts are energized) and do not perform live-wire work. Failure to do so can result in
electric shock, and equipment malfunction or fire.
●
Be very careful when creating screw holes or performing wiring so that no foreign material such as chips or cut wire ends get into the unit.
●
Thoroughly check the connection diagram when wiring. Improper wiring can result in unit malfunction, or fire or electric shock.
●
Do not place transmission or input/output signal wires
close to or bound together with power or high-voltage lines
in order to prevent noise interference.
●
Always be sure to place wires to be connected to this module in a duct or clamp wires together to secure them. Failure to secure wires can result in electric
wires moving due to looseness or unexpected stretching that causes module breakage or malfunction due to poor wire connections.
●
If installing transmission or input/output signal wires next to power and high-voltage lines, maintain the separation distance shown in below table.
DANGER
●
Do not touch live part. Doing so can result in electric shock, electric burn injury and equipment damage.
●
Do not perform installation or wiring with equipment energized and do not perform live wire work.
CAUTION
CAUTION
●
Do not touch charged parts. Doing so can result in electric shock, electric burn injury and equipment damage.
●
Use within the rating ranges indicated in this manual. Using outside of the rating ranges can not only result in misoperation or equipment malfunction but
can also cause fire or burnout.
Always be sure to perform periodic inspection with all power turned off. Failure to
do so can result in electric shock, equipment malfunction or fire.
Periodically tighten terminals. Failure to do so can result in fire.
＜Types of Terminal Blocks＞
●
Strip wires to the proper length. Excessively long stripping length can result in a short circuit with neighboring wires. Excessively short stripping length can
result in poor wiring connections and contact failure.
●
Be careful not to cause a short circuit with a nearby pole due to the filament of a core wire. (Do not plate core wires with solder.)
●
Do not connect three or more signal wires to one terminal of a terminal block. Doing so can result in weak clamping and wire disconnection.
●
Use appropriate sizes of electric wires. Use of an inappropriate size can result in fire due to heat generation.
●
Use overcurrent prevention devices (such as a fuse or circuit breaker) for circuits with wires connected to an auxiliary power circuit (MA or MB) in order to
prevent short circuiting of connected power wires. (Select an appropriate rating in order to prevent fusing of wires.)
●
Tighten screws to the specified torque. Excessive tightening can damage the screw and terminal.
●
After tightening the screws, be sure to check that you have not forgotten to tighten a screw. A loose screw can result in module malfunction, fire or electric
shock.
●
Be sure to attach the terminal cover in order to prevent electric shock.
●
Do not directly touch any energized part or terminals of the module. Doing so can result in electric shock, or module failure or malfunction.
●
Do not pull wiring parts by hand when removing wires connected to this unit. Pulling on wires still connected to this unit can result in module or wiring
damage.
Power lines of 600 V or less
Other power lines
Item
300 mm or more
600 mm or more
Distance
＜Connection with Current Sensor＞
＜Connecting with Frame GND Terminal＞
●
Do not exceed the range of specified voltage values when performing insulation resistance or commercial frequency withstand voltage tests. Do not
connect the frame GND terminal to ground when performing such tests.
●
Ground the frame GND terminal according to actual conditions of use. Use a D-type ground connection (ground resistance is 100 Ω or less).
●
Use a crimp-type terminal appropriate for the size of electric wires. Use of an inappropriate crimp-type terminal can result in wire breakage or contact failure
that causes module malfunction, failure, burnout or fire.
CAUTION
The removed lithium battery has a possibility that electric power capacity remains.
Since there is a possibility of contacting other metal, and generating heat,
exploding and igniting, please manage individually.
*Refer to the operation manual (Detailed Version) for details.
Summary of Contents for EMU4-BD1-MB
Page 9: ......
