Mitsubishi Electric EMU4-BD1A-MB Manual

Also see for EMU4-BD1A-MB: User manual

Energy Measuring UnitModel EMU4-BD1A-MB, EMU4-HD1A-MBBefore using the instrumentBefore using this unit, please read both this manual and the instruction manual carefully and pay attention to safety to handle this unit correctlyfor use properly.Make sure that the end users read this manual and then keep the manual in a safe place for future reference.Deliver this user’s manual to the end user.Be sure to check the following items of the instruction manual.・Name and function of each part・Attaching and removing・Wiring・Requirement for the compliance with EMC Directives・Warranty1. Safety PrecautionsIn this instruction manual, the following safety alert symbols are used in the following meanings.Symbols Meaning explanationIndicates that incorrect handling occurs hazardous conditions, resulting in death or severe injury.Indicates that incorrect handling may cause hazardous conditions, resulting in severe injury.Indicates that incorrect handling may cause in personal injury.Indicates that incorrect handling may cause in damage machines.Even the items listed in "Attention" and "Notice" may have serious consequences depending on the situation.1.1 Precautions for Operating EnvironmentDo 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℃.・Places the average daily temperature exceeds +35℃.・Places the Relative humidity exceeds the range 30 to 85% or places with dewfall.・Dirt, corrosive gas(Note), saline and oil smoke exist.(Note) Gas that attacks metals and plastics (Such as sulfur dioxide, ammonia, hydrogen sulfide)・Vibration and impact exceed the specifications.・Places exposed to rain or water drop.・Places exposed to direct sunlight・Place exposed to strong induction noises, electric fields, magnetic fields.・Places exposed to large amounts of external noise.・Altitude exceeds 2000m.・Places metal fragments or conductive substance are flying.1.2 Precautions for Operating ConditionsOver voltage category of measuring circuit in this unit is CAT III(Note), and that of auxiliary power circuit is overvoltage category III(Note).This unit is premised on being used in pollution degree 2(Note) environment. When used in higher pollution degree, protect this unit from pollution on anotherdevice side to be incorporated.For the precautions for the compliance of the system incorporating this unit with the EMC Directives, refer to the User’s Manual.(Note) For the definition of the pollution degree and the over voltage category, refer to EN 61010-1.・Any person who is involved should be fully competent to do this work.・This unit is the open type device, which are designed to be housed within another device for prevention of electric shock. House this unitwithin the device such as the control panel before use. (Indoor use)1.3 Installation and Wiring Precautions・Work under the electric outage condition. Do not do hot-line work. Failure to do so may cause electric shock, a fire, a failure etc.・Check the Wiring Diagram carefully before making any connections. Failure to do so may cause electric shock, a fire, a failure etc.・After wiring, confirm whether there is a wiring forgetting or a faulty wiring. Failure to do so may cause electric shock, a fire, a failure etc.・Use only wires and solderless terminals that conform to the applicable requirements. Use of inappropriate wires or solderless terminals maycause electric shock, a fire, a malfunction etc.・Do not use spade solderless terminals. If the screws become loose, they may fall off, and cause electric shock, a fire, a failure etc.・After tightening the screws, be sure to check all the screws tightened. Loose screw may cause electric shock, a fire, a failure etc.・Be sure to ground the Frame GND terminal to use. The ground resistance is 100Ω or less.・This product make sure to use it in combination with the dedicated current sensor.・The dedicated current sensor (EMU-CT***, EMU-CT***-A) is used only for low voltage circuit. If it connects to a high voltage circuit by mistake,it may cause a burnout of the device and a fire. When measuring a high-voltage circuit, connect the EMU2-CT5 to the secondary side (5A) ofthe current transformer.・Rating voltage for each phase wire system in the voltage circuit is as follows.EMU4-BD1A-MBDANGERWARNINGCAUTIONNOTICECAUTIONWARNINGPhase wire type Connection type Rating voltage Figure No.3-phase 3-wire Delta Max 220 V AC （L-L） Figure 2Star Max 220 V AC （L-L） Figure 31-phase 3-wire ― Max 110 V AC （L-N）/ 220 V AC （L-L） Figure 41-phase 2-wire(*1) Delta Max 220 V AC （L-L） Figure 5Star Max 220 V AC （L-L） Figure 6EMU4-HD1A-MBPhase wire type Connection type Rating voltage Figure No.3-phase 4-wire Star Max 277 V AC （L-N）/ 480 V AC （L-L） Figure 13-phase 3-wire Delta Max 220 V AC （L-L） Figure 2Star Max 440 V AC （L-L） Figure 31-phase 3-wire ― Max 220 V AC （L-N）/ 440 V AC （L-L） Figure 41-phase 2-wire（*2） Delta Max 220 V AC （L-L） Figure 5Star Max 440 V AC （L-L） Figure 6*1： The maximum rating of the circuit drawn from 3-phase 3-wire system and 1-phase 3-wire system,and transformer circuit of 1-phase 2-wire system is "AC220V (L-L)".*2： The maximum rating of the circuit drawn from delta connection of 3-phase 3-wire system and transformer circuit of 1-phase 2-wire system is "AC220V (L-L)".The maximum rating of the circuit drawn from 3-phase 4-wire system, 3-phase 3-wire star connection system, and single-phase 3-wire system is "AC440V (L-L)".[About Manuals]This manual is digest version.For detail, refer to "Mitsubishi Energy Measurement Unit InstructionManual" (Document No. IB63G65).It is possible to access from the two-dimensional code on the left.For other related materials, see the Mitsubishi Electric GlobalWebsite You can download it.

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