Energy Management Energy Meter Type EM21 72D * Certified according to MID Directive, Annex "B" "Type examination" relevant to active electrical energy meters (see Annex MI-003), see option "P" below * Certified according to MID Directive, Annex "B" + Annex "F" for legal metrology relevant to active electrical energy meters (see Annex MI-003), see option "PF" below. * Class B (kWh) according to EN50470-3 * Class 1 (kWh) according to EN62053-21 * Class 2 (kvarh) according to EN62053-23 * Accuracy 0.5 RDG (current/voltage) * Energy meter * Instantaneous variables readout: 3 DGT * Energies readout: 6+1 DGT * System variables: W, var, PF, Hz, Phase-sequence. * Single phase variables: VLL, VLN, A, PF * Energy measurements: total kWh and kvarh * TRMS measurements of distorted sine waves (voltages/currents) * Self power supply * Dimensions: 4-DIN modules and 72x72mm * Protection degree (front): IP50 * Application adaptable display and programming procedure (Easyprog function) * Easy connections management * Detachable display * Multi-use housing: for both DIN-rail and panel mounting applications Product Description How to order EM21 72D AV5 3 X O X X Three-phase energy meter with removable front LCD display unit. The same unit can be used either as a DIN-rail mounting or a panel mounting energy meter. This general purpose threephase energy meter is suitable for both active and reactive energy metering for cost allocation but also for main electrical parameter measurement and retransmission (transducer function). Housing for DINrail mounting with IP50 (front) protection degree. Current measurements carried out by means of external current transformers and voltage measurements carried out either by means of direct connection or by means of potential transformers. EM21-72D is provided, as standard, with a pulsating output for active energy retransmission. In addition a 2-wire RS485 communication port is available as an option. Model Range code System Power supply Output 1 Output 2 Option Range codes System Power supply Options AV5 (*): 400VLL AC, 5(6)A or 1(6)A (***) (CT connection) AV6 (**):120VLN/230VLL AC 5(6)A or 1(6)A (***) (VT/PT and CT connections) 3 (*): X (*): Self power supply from 18V to 260VAC VLN, 45 to 65 Hz (connection VL1-N) X (*): P: Type Selection balanced and unbalanced load: 3-phase, 4-wire; 3-phase, 3-wire; 2-phase, 3-wire; 1-phase, 2-wire PF: Output 2 Output 1 X (*): None S (**): RS485 port O (*): Single static output (opto-mosfet) Specifications are subject to change without notice (*) as standard. (**) on request. (***) the range 1(6)A is available but not in compliance with the EN50470-3 standard. EM2172D DS ENG 190210 None Certified according to MID Directive, Annex "B" "Type examination" relevant to active electrical energy meters (see Annex MI-003) (*) Certified according to MID Directive, Annex "B" + Annex "F" for legal metrology relevant to active electrical energy meters (see Annex MI-003) (**) 1 EM21 72D Input specifications Rated inputs Current type Current range (by CT) Voltage (direct or by VT/PT) Accuracy (Display + RS485) (@25C 5C, R.H. 60%, 48 to 62 Hz) AV5 model AV6 model Current AV5, AV6 models Phase-neutral voltage Phase-phase voltage Frequency Active power Power Factor Reactive power Active energy Reactive energy Energy additional errors Influence quantities Temperature drift Sampling rate Display refresh time Display Type Instantaneous variables read-out 2 System type: 3 Not isolated (shunt inputs). Note: the external current transformers can be connected to earth individually. AV5 and AV6: 5(6)A. The "1(6)A" range is available but not in compliance with the EN50470-3 standard. AV5: 400VLL; AV6: 120/230VLL In: see below, Un: see below Energies Overload status Max. and Min. indication LEDs In: 5A, Imax: 6A; Un: 160 to 260VLN (277 to 450VLL). In: 5A, Imax: 6A; Un: 40 to 144VLN (70 to 250VLL). From 0.002In to 0.2In: (0.5% RDG +3DGT). From 0.2In to Imax: (0.5% RDG +1DGT). In the range Un: (0,5% RDG +1DGT). In the range Un: (1% RDG +1DGT). Range: 45 to 65Hz; resolution: 1Hz (1%RDG +2DGT). [0.001+1%(1.000 - "PF RDG")]. (2%RDG +2DGT). class B according to EN50470-1-3; class 1 according to EN62053-21. class 2 according to EN62053-23. In: 5A, Imax: 6A; 0.1 In: 0.5A. Start up current: 10mA. According to EN62053-21, EN50470-1-3, EN62053-23 200ppm/C. 1600 samples/s @ 50Hz, 1900 samples/s @ 60Hz 1 second 2 lines 1st line: 7-DGT, 2nd line: 3-DGT or 1st line: 3-DGT + 3-DGT, 2nd line: 3-DGT. LCD, h 7mm. 3-DGT. Max frequency Measurements Method Coupling type Crest factor Current Overloads Continuous For 500ms Voltage Overloads Continuous For 500ms Current input impedance 5(6)A Voltage input impedance Self-power supply Frequency Key-pad Imported Total: 6+1DGT or 7DGT EEE indication when the value being measured is exceeding the "Continuous inputs overload" (maximum measurement capacity) Max. instantaneous variables: 999; energies: 999 999.9 or 9 999 999. Min. instantaneous variables: 0; energies 0.0. Red LED (Energy consumption) 0.001 kWh by pulse if CT ratio x VT ratio is <7; 0.01 kWh by pulse if CT ratio x VT ratio is 7.0 < 70.0; 0.1 kWh by pulse if CT ratio x VT ratio is 70.0 < 700.0; 1 kWh by pulse if CT ratio x VT ratio is 700.0; 16Hz, according to EN50470-3 Green LED (on the terminal blocks side) for power on (steady) and communication status: RX-TX (in case of RS485 option only) blinking. See "List of the variables that can be connected to:" TRMS measurements of distorted wave forms. By means of external CT's. In 5A: 3 (15A max. peak). 6A, @ 50Hz. 120A, @ 50Hz. 1.2 Un 2 Un < 0.3VA Power consumption: <2VA. 45 to 65 Hz. Two push buttons for variable selection and programming of the instrument working parameters. Specifications are subject to change without notice EM2172D DS ENG 190210 EM21 72D Output specifications Pulse output Number of outputs Type Pulse duration Output Load Insulation RS485 Type Connections 1 Programmable from 0.01 to 9.99 kWh per pulses. Output connectable to the energy meters (kWh) 100ms < 120ms (ON), 120ms (OFF), according to EN62052-31. Static: opto-mosfet. VON 2.5 VAC/DC max. 70 mA, VOFF 260 VAC/DC max. By means of optocouplers, 4000 VRMS output to measuring inputs. Addresses Multidrop, bidirectional (static and dynamic variables) 2-wire. Max. distance 1000m, termination directly Insulation Protocol Data (bidirectional) Dynamic (reading only) Static (reading and writing) Data format Baud-rate Driver input capability on the instrument. 247, selectable by means of the front keypad MODBUS/JBUS (RTU) System and phase variables: see table "List of variables..." All the configuration parameters. 1 start bit, 8 data bit, no parity,1 stop bit. 9600 bits/s. 1/5 unit load. Maximum 160 transceiver on the same bus. By means of optocouplers, 4000 VRMS output to measuring input. Software functions Password 1st level 2nd level Programming lock Numeric code of max. 3 digits; 2 protection levels of the programming data: Password "0", no protection; Password from 1 to 999, all data are protected By means of potentiometer (back-side of the display module) it is possible to lock the access to all the configuration parameters. System selection System 3-Ph.n unbalanced load 3-phase (4-wire) 3-phase (3-wire) System 3-Ph.1 balanced load * 3-phase (3-wire) one current and 3-phase to phase voltage measurements. Note: the phase to phase voltage is calculated multiplying by 1.73 the virtual phase to neutral voltage. * 3-phase (4-wire) one current and 3-phase to neutral voltage measurements. Note: the phase to phase voltage is calculated multiplying by 1.73 the virtual phase to neutral voltage. * 3-phase (2-wire) one current and 1-phase (L1) to neutral voltage measurement. 2-phase (3-wire) System 2-Ph System 1-Ph 1-phase (2-wire) Specifications are subject to change without notice Transformer ratio VT (PT) CT Displaying Reset Easy connection function EM2172D DS ENG 190210 1.0 to 99.9 / 100 to 999 / 1.00k to 6.00k 1.0 to 99.9 / 100 to 999 / 1.00k to 9.99k / 10.0k to 60.0k. The maximum power being measured cannot exceed 210 MW calculated as maximum input voltage and current, (see the "Accuracy" paragraph). The maximum VT by CT ratio is 48.600. For MID complaint applications the maximum power being measured is 25 MW. Up to 3 variables per page. See Display pages , 3 different set of variables available (see Display pages ) according to the metering function being selected. By means of the front keypad: total energies (kWh, kvarh). Wrong phase detection and displaying. For all the display selections, both energy measurements are dependent from the current direction, both power measurements are independent from the current direction. The power measurements are always positive. 3 EM21 72D General specifications Operating temperature Storage temperature Installation category Insulation (for 1 minute) Dielectric strength Noise rejection CMRR EMC Electrostatic discharges Immunity to irradiated Electromagnetic fields Burst Immunity to conducted disturbances -25C to +55C (-13F to 131F) (R.H. from 0 to 90% non-condensing @ 40C) according to EN62053-21 and EN62053-23. -30C to +70C (-22F to 158F) (R.H. < 90% noncondensing @ 40C) according to EN62053-21 and EN62053-23. Cat. III (IEC60664, EN60664). 4000 VRMS between measuring inputs and digital output. 4000 VRMS for 1 minute. 100 dB, 48 to 62 Hz. According to EN62052-11 15kV air discharge; Test with current: 10V/m from 80 to 2000MHz; Test without any current: 30V/m from 80 to 2000MHz; On current and voltage measuring inputs circuit: 4kV Surge Radio frequency suppression Standard compliance Safety Metrology Pulse output Approvals Connections Cable cross-section area Housing Dimensions (WxHxD) Material Mounting Protection degree Front Screw terminals Weight On current and voltage measuring inputs circuit: 6kV; According to CISPR 22 IEC60664, IEC61010-1 EN60664, EN61010-1 EN62052-11 EN62053-21, EN62053-23, EN50470-3 DIN43864, IEC62053-31 CE, cULus listed Screw-type 2.4 x 3.5 mm Min./Max. screws tightening torque: 0.4 Nm / 0.8 Nm 72 x 72 x 65 mm Noryl PA66, self-extinguishing: UL 94 V-0 Panel and DIN-rail IP50 IP20 Approx. 400 g (packing included) 10V/m from 150KHz to 80MHz Power supply specifications Self power supply 18 to 260VAC (48-62Hz). Across input "VL1" and "N" Power consumption 2VA/1W Insulation between inputs and outputs Measuring Inputs Opto-Mosfet output Communication port Self power supply - 4kV 4kV 0kV Opto-Mosfet output 4kV - - 4kV Communication port 4kV - - 4kV Self power supply 0kV 4kV 4kV - Measuring Inputs NOTE: all the models have, mandatorily, to be connected to external current transformers. 4 Specifications are subject to change without notice EM2172D DS ENG 190210 EM21 72D Accuracy (According to EN50470-3 and EN62053-23) kWh, accuracy (RDG) depending on the current kvarh, accuracy (RDG) depending on the current Percentage error limits for class index B Percentage error limits +1,5% +1% +2,5% +2% 0% 0% -1% -1,5% -2% -2,5% PF=1 0.05A(Imin) 0.25A(Itr) 5A (In) 6A (Imax) sin=1 0.1A 0.25A 5A (In) 6A (Imax) PF=L0.5 to C0.8 0.25A(Itr) 5A (In) 6A (Imax) sin=0.5 0.25A 0.5A 5A (In) 6A (Imax) Accuracy limits (Active energy) Start-up current: 10mA Accuracy limits (Reactive energy) Start-up current: 10mA MID "Annex MI-003" compliance Accuracy 0.9 Un U 1.1 Un; 0.98 fn f 1.02 fn; fn: 50Hz; cos: 0.5 inductive to 0.8 capacitive. Class B I st: 0.01A; I min: 0.05A; I tr: 0.25A; Operating temperature EMC compliance I n: 5A I max: 6A. -25C to +55C (-13F to 131F) (R.H. from 0 to 90% non-condensing @ 40C) E2 Used calculation formulas Phase variables System variables Instantaneous effective voltage Equivalent three-phase voltage Instantaneous active power Voltage asymmetry Three-phase power factor (TPF) Energy metering Instantaneous power factor Instantaneous effective current Instantaneous apparent power Three-phase active power Instantaneous reactive power Three-phase apparent power Specifications are subject to change without notice EM2172D DS ENG 190210 Where: i= considered phase (L1, L2 or L3) P= active power; Q= reactive power; t1, t2 =starting and ending time points of consumption recording; n= time unit;t= time interval between two successive power consumptions; n1, n2 = starting and ending discrete time points of consumption recording 5 EM21 72D List of the variables that can be connected to: * RS485 communication port * Pulse outputs (only "energies") No Variable 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 kWh kvarh V L-N sys (1) V L1 V L2 V L3 V L-L sys (1) V L1-2 V L2-3 V L3-1 A L1 A L2 A L3 VA sys (1) VA L1 (1) VA L2 (1) VA L3 (1) var sys var L1 (1) var L2 (1) var L3 (1) W sys W L1 (1) W L2 (1) W L3 (1) PF sys PF L1 PF L2 PF L3 Hz Phase sequence 1-ph. sys. 2-ph. sys. x x o x o o o o o o x o o x x o o x x o o x x o o x x o o x o x x x x x o x x o o x x o x x x o x x x o x x x o x x x o x o 3-ph. 4-wire balanced system x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 3-ph. 3-wir balanced system x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 3-ph. 4-wire unbalanced system x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 3-ph. 3-wir unbalanced system x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Notes Total Total sys=system () sys=system () sys=system () sys=system () sys=system () sys=system () (x) = available (o) = not available (zero indication on the display) (1) = Variable available only through the serial communication port RS485 Display pages No 1st variable (1st half-line) 2nd variable (2nd half-line) 3rd variable (2nd line) The phase sequence triangle appears in any page only if there is a phase reverse Phase sequence Total kWh Total kvarh 1 2 3 W sys kvar sys PF sys Hz 4 PF L1 PF L2 PF L3 5 6 7 A L1 V L1-2 V L1 A L2 V L2-3 V L2 A L3 V L3-1 V L3 6 Applications A B C Note Indication of C, -C, L, -L depending on the quadrant Indication of C, -C, L, -L depending on the quadrant Specifications are subject to change without notice x x x x x x x x x x x x x x x EM2172D DS ENG 190210 EM21 72D Additional available information on the display Type Meter information 1 Meter information 2 Meter information 3 Meter information 4 Meter information 5 Meter information 6 Meter information 7 1st line 2nd line note Y. 2007 value SYS [3P.n] Ct rAt. Ut rAt. PuLSE (kWh) Add r.A0 LEd (kWh) value value value value value Year of production and firmware release KWh per pulse of the LED System type and connection type Current transformer ratio Voltage transformer ratio Pulse output: kWh per pulse Serial communication address List of selectable applications Description Notes A Active energy meter Active energy measurement with some minor parameters B Active and reactive energy meter Active and reactive energy measurement with some minor parameters C Full set of variables Full set of available variables can be displayed One instrument with double mounting capability By means of the patented detachable display it is possible to configure the same instrument either as a panel mounting meter or... ... as DIN-rail mounting meter. Specifications are subject to change without notice EM2172D DS ENG 190210 7 EM21 72D Wiring diagrams (6A) Self power supply, system type selection: 3P.n 3-ph, 4-wire, unbalanced load Fig. 1 V inputs 7 10 6 8 9 5 4 3 2 1 9 8 7 10 6 5 4 3 2 1 St at ic R S4 85 ou tp ut 6A inputs 3-ph, 4-wire, unbalanced load Fig. 2 3-CT connection 3-CT and 3-VT/PT connections (6A) System type selection: 3P.n Fig. 3 3-ph, 3-wire, unbalanced load 9 8 7 10 6 5 4 3 2 1 Fig. 4 3-ph, 3-wire, unbalanced load 9 8 7 10 6 5 4 3 2 3-ph, 3-wire, unbalanced load Fig. 5 9 1 8 (*) (*) 3-CT connection 7 10 6 5 4 3 2 1 (*) 3-CT and 2-VT/PT connections 2-CT connections (ARON) (6A) Self power supply, system type selection: 3P.1 3-ph, 3-wire, unbalanced load Fig. 6 3-ph, 3-wire, balanced load Fig. 7 3-ph, 3-wire, balanced load Fig. 8 1-CT connection 9 8 7 10 6 5 4 3 2 1 9 8 7 10 6 5 9 8 5 (*) (*) 2-CT and 2-VT/PT connections ARON 7 10 6 NOTE: a 2-wire connection for voltage measurement is available accross 9 and 10 . 1-CT and 2-VT/PT connections (*) NOTE: For a correct power supply of the instrument, the neutral must always be connected. 8 Specifications are subject to change without notice EM2172D DS ENG 190210 EM21 72D Wiring diagrams (6A) System type selection: 2P Fig. 9 2-ph, 3-wire 9 8 10 (6A) System type selection: 1P 6 5 4 3 9 2-CT connection Fig. 10 2-ph, 3-wire 8 10 6 5 4 Fig. 11 1-ph, 2-wire 9 3 10 6 5 1-CT connection 2-CT and 2-VT/PT connections Static output wiring diagram (6A) System type selection: 1P 1-ph, 2-wire 9 10 Fig. 12 6 Opto-mosfet VDC/AC 5 17 1-CT and 1-VT connections 18 VDC/AC supply RS485 port wiring diagram RS485 port 16 16 B+ 15 B+ 15 B+ A- 14 A- 14 A- 13 13 RS485 NOTE: additional devices provided with RS485 are connected as per the picture above. The termination of the serial output is carried out only on the last instrument of the network, by means of a jumper between (B+) and (T). Specifications are subject to change without notice EM2172D DS ENG 190210 9 EM21 72D Front panel description 5 4 1 2 3 1 4 1. Keypad To program the configuration parameters and scroll the variables on the display. 2. Pulse output LED Red LED blinking proportional to the energy being measured. 3. Display LCD-type with alphanumeric indications to display all the measured variables. 4. Connections Screw terminal blocks for instrument wiring. 5. Green LED Lit when power supply is available Dimensions (DIN configuration) Dimensions and panel cut out (72x72 panel mounting configuration) 68x68mm -0 +0.7mm 10 Specifications are subject to change without notice EM2172D DS ENG 190210