Schneider Electric EM3555 Supported System Types, Supported system types, Single-Phase Wiring

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EM3555	ZL0093-0A
Supported System Types	11/2011

SUPPORTED SYSTEM TYPES

The meter has a number of different possible system wiring configurations (see Wiring Diagrams). To configure the meter, set the System Type via the User Interface or Modbus register 130. The System Type tells the meter which of its current and voltage inputs are valid, which are to be ignored, and if neutral is connected. Setting the correct System Type prevents unwanted energy accumulation on unused inputs, selects the formula to calculate the Theoretical Maximum System Power, and determines which phase loss algorithm is to be used. The phase loss algorithm is configured as a percent of the Line-to-Line System Voltage (except when in System Type 10) and also calculates the expected Line to Neutral voltages for system types that have Neutral (12 & 40).

Values that are not valid in a particular System Type will display as “----” on the

User Interface or as QNAN in the Modbus registers.

Table 3 Supported system types

	CTs		Voltage Connections			System Type		Phase Loss Measurements			Wiring Diagram

Number	Qty	ID	Qty	ID	Type	Modbus	User	VLL	VLN	Balance	Diagram number
of wires						Register	Interface:
						130	SETUP>
							S SYS

Single-Phase Wiring

2

2

3

1	A	2	A, N	L-N	10	1L + 1n		AN		1
1	A	2	A, B	L-L	11	2L	AB			2
2	A, B	3	A, B, N	L-L with N	12	2L + 1n	AB	AN, BN	AN-BN	3

Three-Phase Wiring

3

4

3	A, B,	3	A, B, C	Delta	31	3L	AB, BC,		AB-BC-CA	4
	C						CA
3	A, B,	4	A, B,	Grounded Wye	40	3L + 1n	AB, BC,	AN, BN,	AN-BN-CN &	5, 6
	C		C, N				CA	CN	AB-BC-CA

8	© 2011 Schneider Electric All Rights Reserved.

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Contents

EM3555 Hazard Categories Special Symbols Please NoteFCC Notice Contents EM3555 ZL0093-0A Contents 11/2011 Safety Precautions Installation OverviewDIN Rail Mounting Screw MountingSpecifications Type DescriptionSafety Environmental ConditionsMetering Category Observe correct CT orientation when installing the device IntroductionParts of the EM Series Dimensions EM Series DimensionsData Output Data Output Full Data Set FDSData Logging Installation Attach mounting clips for DIN RailSingle-Phase Wiring Three-Phase WiringSupported System Types Supported system typesWiring Symbol DescriptionWiring Symbols Wiring Diagrams DiagramDiagram Phase 4-Wire Wye Connection 3 CT 3 PT Use System Type 11 2LControl Power Wiring NotesFuse Recommendations L1 L2 L3Display Screen Diagram Display ScreenQuick Setup Instructions SOLID-STATE Pulse Output Solid State Pulse OutputsUI Menu Abbreviations Defined Main MenuIEC and Ieee Abbreviations DescriptionFor Data Configuration EM3555 User Interface for Data Configuration ALERT/RESET Information Ploss Lowpf ERR OVR PulseUser Interface for Setup FromEM3555 ZL0093-0A User Interface for Setup 11/2011 Daisy-chaining Devices to the Power Meter RS-485 CommunicationsConfiguration Data LoggingReading Data Read/Write CollisionStandard Modbus Default Settings Setting Value Modbus RegisterModbus Default Settings Supported Modbus Commands Command DescriptionSupported Commands Modbus Point MAPSunSpec Alliance Interoperability Specification Compliance Integer Data Summary of Active Phases Format Units Scale Range DescriptionFormat Units Scale Range 055 ULong KVARh Accumulated Q1 Reactive 079 ULong KVAh Accumulated Apparent Register 142 NV UInt 143 10000 144 500 250 145 Msec 146 Logging Configuration and Status LSB161 UInt 32767 162 163 164 0xFFFF ULong KWh 165 166 Month Floating Point Data Summary of Active Phases Floating Point Data Per Phase Logging Interface Sunspec Compliant Common and Meter Model Register Blocks Register Format Units Scale RangeSunSpec Description Name SunSpec 1.0 Common ModelSunSpec Description NameSunSpecCompliantCommonandMeterModelRegisterBlocks Event Bit Description Troubleshooting Problem Cause SolutionTroubleshooting China Rohs Compliance Information Efup TableEM3555 Installation Guide Schneider Electric