Qonnex DCE.230 User Manual
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DCE.230 DC Energy MeterDCE.230 User Manual 1.71. IntroductionDCE.230 series DC energy meters aredesigned for measuring and monitoringin DC systems. The din rail DC energymeters can measure of important DCparameters: Voltage, current, powerand energy etc. It also support bi-directional measurement with pulseoutput. All data in the meter areaccessible via RS485 using Modbus RTU.The meter has DC power supply. Inputvoltage range up to 1000V DC, andcurrent inputs are flexible with DC shuntand current sensors.• Measures kWh, W, V, A etc.• Bi-directional measurementIMP & EXP• Pulse output• RS485 Modbus• Din rail mounting 35mm• DC shunt connection• Class 11.1 General SpecificationsVoltage DC Input: 5~1000V DCAuxiliary Supply: 9-40V DCDC Shunt Input: 75mVCurrent Range: 0~2000APower consumption: ≤ 2W / 5VAAC voltage withstand: 4400V/ 1minImpulse voltage withstand: 6.4kV -1.2/50μS waveform1.2 Unit CharacteristicsThe Unit can measure and display:• voltage• Currents• Power• Active energy imported andexportedPulse output indicates real-time energymeasurement. An RS485 output allowsremote monitoring from anotherdisplay or a computer.1.3 Shunt Primary CurrentThe unit can be configured to operatewith primary current and secondaryinput.Primary current range: 0~2000A.Second input: 75mV1.4 RS485 Output for Modbus RTUFor Modbus RTU, the following RS485communication parameters can beconfigured from the Set-up menu:Baud rate 1200,2400, 4800, 9600,19200Parity none (default)/odd/evenStop bits 1 or 2RS485 address 3-digit, 001 to 247Modbus™ Word order Hi/Lo byte orderis set automatically to normal orreverse. It cannot be configuredfrom the set-up menu.Set-up screens are provided for settingup the RS485 port.1.5 Pulse outputThe unit provides a pulse output. Theconstant can be configured to below:Pulse output: 1, 10, 100, 1000 imp/kWh(default)Pulse duration: 60, 100 (default), 200mSPulse output indicate: Total kWh/import kWh/ export kWhDisplay: LCD with backlitMax. Reading: 999999.9kWhWeight: 220gStandard: GB/T 33708-201710000 imp/kWh1000 imp/kwh100 imp/kWh10 imp/kWh1 imp/kWhPulse width: 200/100(default)/60 ms.Note: the relationship between pulseconstant and CT1CT1 Default pulseimp/kWhSettable pulseimp/kWh1–20 1000 1000,100,10,121–200 100 100,10,1201–2000 10 10,1*when the CT setting on meter is 2000A,the default pulse constant is 10imp/kWh and it can be set to10imp/kWh or 1 imp/kWh.*Over-current alarm: Alarm willhappened when the current is over theCT1 value set on the meter. The AlarmLED will stay solid and the corres-ponding register value will be changed.The user can read this register throughcommunication to determine whetheran overcurrent alarm has occurred.The pulse outputs can be set to generatepulses to represent Import kWh/ ExportkWh/ total kWh.The pulse output is passive type,complies with IEC62053-31 Class A.1.7 EnvironmentOperating temperature -25 to + 55℃Reference temperature 23℃±2℃Relative humidity 0 to 90%, non-condensingAltitude up to 2000mInstallation category CATIIIMechanical Environment M1Electromagnetic environment E2Degree of pollution 21.8 MechanicsDin rail dimensions 36x100x63 (WxHxD)DIN 43880Mounting DIN rail 35mmIngress Protection IP51 (indoor)Material Self-extinguishing UL94V-02. Operation2.1 Initialization DisplayWhen it is powered on, the meter willinitialize and do self-checking.Full Screen (stay2s)Software Version(stay 2s)(This informationis for referenceonly.)Current Modbusaddress(stay 2s)Current baudrate (stay 2s)Total activeenergy(kWh)Total=Import+ExportMax read:999999.9 kWh2.1 Buttons functionThere are two buttons on the frontpanel.>Scroll the display fordata checking.>Changing option atSet-up mode>Exit the Set-up mode>Set-up mode entry>Confirmation2.1.1 Scroll displayAfter initialization and self-checkingprogram, the meter displays themeasured values. The default page istotal kWh. If the user wants to checkother information, please press thescroll button on the front panel.Total activeenergy(kWh)Total=Import+ExportDisplay format:5+2 -> 6+1 -> 5+299999.99 ->100000.0 ->999999.9 ->00000.00Partial resettableactiveenergyDisplay format:5+2 -> 6+1 -> 5+299999.99 ->100000.0 ->999999.9 ->00000.00VoltageCurrentPowerDisplay format:<1000 W: XXX W<1000kW: XXX.XXXkWFor other value:XXXX.XX kWPulse constantCT1 PrimarycurrentMeter addressBaud rateParitySoftware VersionSet-up ModeTo get into Set-up Mode, the user needpress the “Enter” button for 3 second.1 PasswordTo get into Set-up mode,it asks a passwordconfirm. Defaultpassword: 1000Use Scroll and Set toenter correct password.2 Keep pressing Set for 3second, the currentselectionwill flash, use Scroll andSet to change theModbus address.Options: 1~247Keep press Set for 3s toconfirm the selection.3 Keep pressing Set for 3second, the currentselection will flash, useScroll and Set to changethe Baud rate. Options:1.2k, 2.4k,4.8k,9.6k (default ),19.2kKeep press Set for 3s toconfirm the selection. |
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