Siemens UL 489, UL1066 specifications Metering range

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Communication-capable Circuit Breakers

WL Circuit Breaker

The metering function provides the following measured values for communication system:

Measured value	Value range			Accuracy (with direct order: circuit breaker +
				trip unit + met. function or met. function Plus)1
Currents Ia, Ib, Ic, IN	30		... 8000A	± 1%
Ground-fault current Ig (measure with external G transformer)	100 ... 1200A			± 5%

Line-to-line voltages Vab, Vbc, Vca	80		... 120% Vn	± 1%
Line-to-neutral voltages Van, Vbn, Vcn	80		... 120% Vn	± 1%
Average value of phase-to-phase voltages VLLAVG	80		... 120% Vn	± 1%
Apparent power kVA per phase	13		... 8000kVA	± 2%

Total apparent power KVA	13		... 24000kVA	± 2%

Active power kW per phase	-8000 ... 8000kW			± 3% (power factor > 0.6)

Total active power kWtotal	-24000 ... 24000kVA			± 3% (power factor > 0.6)
Reactive power kvar	-6400 ... 6400kvar			± 4% (power factor > 0.6)

Total reactive power kvar	-20000 ... 20000kvar			± 4% (power factor > 0.6)

Power factor per phase	-0.6 ... 1 ... 0.6			± 0.04

Power factor total	-0.6 ... 1 ... 0.6			± 0.04

Demand of currents Ia, Ib, Ic	30		... 8000A	± 1%
Average demand of 3-phase current	30		... 8000A	± 1%

Demand kWD per phase	13		... 8000kW	± 3% (power factor > 0.6)

kW demand 3-phase active power kWD total	13		... 8000kW	± 3% (power factor > 0.6)

kVA demand kVA total	13		... 8000kVA	± 2%

kVAR demand kVAR per phase	13		... 8000kVA	± 2%

kVAR demand total	-24000 ... 24000kvar			± 4% (power factor > 0.6)

kWhr imported	1	... 10000MWh		± 2%

kWhr exported	1	... 10000MWh		± 2%

kVARh imported	1	... 10000Mvarh		± 4%

kVARh exported	1	... 10000Mvarh		± 4%

Frequency	15		... 440 Hz	± 0.1 Hz

Total harmonic distortions for current and voltage	2	... 100%		± 3% from the meas. range up to the 29th harmonic

Phase unbalance for current and voltage	2	... 150%		± 1%

Table 2-7The metering function provides a minimum and maximum measured value for each measured value specified above. If the metering function is retrofitted by the customer, the accuracy of the values specified cannot be ensured, since it will not have been calibrated with the trip unit.

1.Accuracy is specified as follows: ± (x%) from the upper limit of effective range + 2 LSD (Least Significant Digit)) as shipped from the factory

Measurement conditions:
Frequency	f = 60 Hz			Power supply	UL Listed 24V DC class 2
Power factor	cos	= 1		Warm-up period	2 hours
Waveform	Total harmonic distortion≤ 5%; symmetrical load			Relative air humidity	Up to 90%
Ambient temperature	35°C ± 5°C

Metering range:
Current	0.2	... 1.2	Inmax
Voltage	0.8	... 1.2	Vnmax

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WL MODBUS Communication and Electronic Accessories • January 2005

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Contents Global network of innovation Powerful ideasCommunication-capable Circuit Breakers Communication-capable Circuit Breaker Registered Trademarks Safety GuidelinesQualified Personnel Correct UsageIntroduction Overview Content of the Manual GeneralIntroduction Easy Planning System SolutionsWL Circuit Breakers-Modular Intelligent Cost SavingModbus Communication Bus SystemsCommunication Structure of the WL Circuit Breakers Ethernet WL Circuit Breaker Brief Description of the WL Circuit Breaker Introduction and OverviewCommunications Capability of the Electronic Trip Units ETUs CubicleBUSETU725 ETU727 ETU745 Functional overview of the trip unit systemBasic Functions ETU725 ETU727 ETU745 Setting range of the IgBasic Functions ETU748 ETU755 ETU776 Communication Data points with the same source 755 or Data Availability on the CubicleBUSData point group ETU745 MeteringPin Configuration Modbus COM16 Module and the BSSModbus Module COM16 Modbus Installation Guideline Modbus Write Protection DPWriteEnableData Exchange via the COM16 Module Meaning Position and text on the cable CubicleBUSCubicleBUS + Position Rear Microswitch S46 Middle S47 Front S48Meaning Cubicle BUS LED MeaningBreaker Status Sensor BSS General Metering Function PlusMetering Function Plus Harmonic analysisWaveform buffer Maximum distance from voltage transformer Parameters for the settings of the metering functionVoltage Transformers VT AccuracyMetering range 81THDC Important functions/parameters for communications Load ManagementExtended Protective Function Event and Trip Log Normal Positive Power Flow DirectionSetpoints Minimum for Communicated CurrentsRotary Switches InstallationExternal CubicleBUS Modules Power Supply Maximum CubicleBUS ConfigurationCubicleBUS Installation Guidelines All other LEDs Meaning LED DisplayMeaning CubicleBUS LED MeaningDevice Testing the Digital Input and Output ModulesFunctional description for changing parameter sets Technical data for the digital input moduleDigital Input Module Functional descriptionDelay time Digital Output Module with Rotary SwitchSelector switch position to the left Selector switch position to the rightConfigurable Digital Output Module Trigger event Waveform buffer B Technical data for the digital configurable output moduleAnalog Output Module Power value ranges W/VASwitch position cos Technical data for the analog output moduleTest function ZSI Module Operating principleExample as illustrated in Graphic It trips after tZSI = 50 ms. Time saved = 250 ms Technical data for the ZSI moduleCommunication-capable Circuit Breakers General information Output current Inrush current Type Order No Communication-capable Circuit Breakers Modbus Profile for WL Circuit Breaker Supervisory Systems COM16 Supported Function Codes Function 01 Read CoilsFunction 02 Read Discrete Inputs Function 03 Read Holding Registers Request Message to slaveReply Message from slave Function 04 Read Input Registers Function 05 Write Single CoilFunction 07 Read Exception Status Function 08 Diagnostics Function 11 Get Communication Event CounterFunction 12 Get Communication Event Log COM16 slave Send Event What the Event Bytes ContainFunction 15 Write Multiple Coils Function 16 Write Multiple Registers Exception Responses Code Name Meaning Exception CodesDefault Register Lists Basic Data Type 1 Registers and Default Data PointsBasic Data Type 2 Registers and Default Data Points Basic Data Type 3 Registers and Default Data Points Data bytes Complete List of DatasetsMin Max Bits Sample DatasetByte Register Description Bit Mapping for Breaker Status RegisterWL Configurator Brief Description Communication-capable Circuit Breakers Breaker Data Adapter BDA Breaker Data Adapter Plus BDA Plus Brief Description and System Requirements DescriptionBenefits of the BDA BDA as a Hand-Held Device or BDA Plus BDA in Offline Mode or BDA PlusIntranet and Internet BDA Plus as an Ethernet InterfaceWhat is Java? Circuit breaker requirementsGetting started with the BDA Plus Connection to WL Circuit Breakers TemporaryPermanent Meaning of the LEDs on the BDA Operation4This table provides technical data for the BDA and BDA Plus Technical data for the BDA and BDA PlusUsually have to be changed. They are shown as a reference Connection to the BDA via the Serial Communication SystemBreaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Breaker Data Adapter BDA Definition of Key Terms Connection to the BDA Plus via the Ethernet InterfaceBDA IP Address IP AddressesSubnet Mask ExampleDisplaying Data Operating Instructions and TroubleshootingOffline/Online Mode Languages and HelpPrinting Password ProtectionSentron Operation ExampleTroubleshooting List Fault Description Solution Siemens Energy & Automation, Inc. All Rights Reserved Siemens Energy & Automation, Inc