WM3-96

WM3-96 ETC2 | Alldatasheet

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Technical content

Specifications are subject to change without notice WM3-96DS260606 1

• Class 0.5 (current/voltage)
• 32-bit µP-based modular smart power quality analyzer
• Graph display (128x64 dots)
• Front size: 96x96 mm
• Measurements of single phase and system variables: W, Wdmd, var, VA, VAdmd, PF, PFavg, V, A, An dmd (for all of them max. and min. values). Energies: kWh and kvarh on 4 quadrants.
• Neutral current measurement
• TRMS measurement of distorted waves (voltage/current)
• Current and voltage inputs with autoranging capability
• 4x4-dgt instantaneous variable read-out
• 4x9-dgt total energies read-out
• 4x6-dgt partial energies read-out
• 48 independent energy meters to be used as single, dual, multi-time energy management Product Description Model Range code System Power supply Slot A Slot B Slot C Slot D Options 32-bit µP-based smart power quality analizer with a built-in configuration key-pad. The housing is for panel mounting and ensures a degree of protection (front) of IP 65. The instrument is par - ticularly indicated for those application where there is the need to control the power supply quality. The variables being displayed are more than 400. Energy Management Modular Smart Power Quality Analyzer Type WM3-96 Type Selection System 3: One phase, three- phase system (3 or 4 wires, balan- ced load) Three phase system (3 or 4 wires, unba- lanced load) Range code AV5: 240/415 VAC - 1/5 AAC (max. 300 V (L-N)/

520 V (L-L) - 6 A)

(standard) AV7: 400/690VAC - 1/5 AAC (max. 480V (L-N) /

830 V (L-L) / 6 A

L: 18 to 60VAC/DC 1) H: 90 to 260VAC/DC Slot A (signal retransmission) XX: None A1: Single analogue output, 20mADC (standard) A2: Single analogue output, ±5mADC 1) A3: Single analogue output, ±10mADC 1) A4: Single analogue output, ±20mADC 1) B1: Dual analogue output, 20mADC (standard) B2: Dual analogue output, ±5mADC 1) B3: Dual analogue output, ±10mADC 1) B4: Dual analogue output, ±20mADC 1) V1: Single analogue output, 10VDC (standard) V2: Single analogue output, ±1VDC 1) V3: Single analogue output, ±5VDC 1) V4: Single analogue output, ±10VDC 1) W1: Dual analogue output, 10VDC (standard) W2: Dual analogue output, ±1VDC 1) W3: Dual analogue output, ±5VDC 1) W4: Dual analogue output, ±10VDC 1) Slot B (signal retransmission) XX: None B1: Dual analogue output, 20mADC (standard) B2: Dual analogue output, ±5mADC 1) B3: Dual analogue output, ±10mADC 1) B4: Dual analogue output, ±20mADC 1) W1: Dual analogue output, 10VDC (standard) W2: Dual analogue output, ±1VDC 1) W3: Dual analogue output, ±5VDC 1) W4: Dual analogue output, ±10VDC 1) S1: Serial port, RS485 multidrop, bidirectional 1) NNoottee:: Slot A + Slot B Max 4 analogue outputs Slot C + Slot D max 4 digital outputs 1) On request

• Display refresh time: 100 msec @ 50 Hz
• Harmonic distorsion analysis (FFT) up to 50th harmonic with both graph and numerical indication (of current and voltage)
• Harmonics source detection
• Optional RS232 + real time clock function with data logging of alarm and MIN/MAX events, monthly energy metering recording
• Degree of protection (front): IP 65
• Up to 4 optional alarm setpoints
• Up to 4 optional pulse outputs
• Up to 4 optional analogue outputs
• Optional serial RS 422/485 output
• Universal power supply: 18 to 60VAC/DC - 90 to 260 VAC/DC
• MODBUS RTU, JBUS, (N2 METASYS protocols on request) Slot C (alarm or pulse out) XX: None R1: Single relay output, (AC1-8AAC, 250VAC) 1) R2: Dual relay output, (AC1-8AAC, 250VAC) 1) O1: Single open collector output (30V/100mADC) 1) O2: Dual open collector out- put (30V/100mADC) 1) D1: 3 digital inputs 1) Slot D (alarm or pulse out) XX: None R2: Dual relay output, (AC1-8AAC, 250VAC) 1) O2: Dual open collector out- put (30V/100mADC) 1) O4: 4 open collector out - puts (30V/100mADC) 1) Options X: None S: Serial RS232 + RTC N: With N2 Metasys protocol C: options: S+N

2 Specifications are subject to change without notice WM3-96DS260606

0 to ±10 mADC, 0 to ±5 mADC 0 to 10 VDC, 0 to ±10 VDC 0 to ±5 VDC 0 to ±1 VDC Analogue outputs (on request) Number of outputs Up to 4 (on request) Accuracy ±0.2% FS Range 0 to 20 mADC, 0 to ±20 mADC Output Specifications Number of inputs Current 2 (system: single phase) 6 (system: 3-phase) Voltage 2 (system: single phase 4 (system: 3-phase) Digital 3 free of voltage contacts for Wdmd, VAdmd, An dmd, PFavg synchronization Reading voltage/current: 17.5 to 25VDC/<8mA Accuracy (display, RS232, RS485) In: 5A, If.s.: 6A, start-up I: 15mA Current (AL1, AL2, AL3) ±0.5% RDG (0.2 to1.2 In) ±5mA (0.02 to 0.2 In) Current (An) ±1% RDG (0.2 to 1.2 In) @ 40 to 100 Hz Voltage AV5 range: ±0.5% RDG (48 to 300 VL-N) ±1% RDG (84 to 519 VL-L) AV7 range: ±0.5% RDG (80 to 480 V L-N) ±1% RDG (139 to 830 VL-L) includes also: frequency, power supply and output load influences Frequency ±0.1% RDG (40 to 440 Hz) Active power 0.1 to 1.2 In, AV5 range) or ±1% RDG (PF 0.5 L/C, 0.1 to 1.2 In, AV5 range) Reactive power 0.1 to 1.2 In, AV5 range) or ±1% RDG (PF 0.5 L/C, 0.1 to 1.2 In, AV5 range) Apparent power (0.1 to 1.2 In, AV5 range) or ±1% RDG (0.1 to 1.2 In, AV5 range) Energies (@ 25°C ± 5°C, R.H. ≤ 60%) Active: class 1 according to EN61036 Reactive: class 2 according to EN61268 Ib: 5A, Imax: 6A 0.1Ib: 500mA Start up current: 20mA Un: 240V (AV5), 400V (AV7) Harmonic distorsion 1% FS (FS: 100%) (@ 25°C ± 5°C, R.H. ≤ 60%) phase: ±2°; Imin: 0.1Arms; Imax: 15Ap; Umin: 50Vrms; Umax: 500Vp Sampling frequency 6400 samples/s @ 50Hz Additional errors Humidity ≤ 0.3%RDG, 60% to 90% R.H. Input frequency ≤ 0.4%RDG, 62 to 400 Hz Magnetic field ≤ 0.5%RDG, @ 400 A/m Temperature drift ≤ 200ppm/°C Sampling rate 6400 samples/s @ 50Hz Display Graph LCD, 128x64pixel, back-lighted. Selectable read-out for the instanta- neous variables: 4x4-dgt or 4x3 1/2-dgt Total Energies: 4x9-dgt; Partial: 4x6-dgt Max. and min. indication Max. 9999 (999,999,999), Measurements Current, voltage, power, energy, harmonic distortion (see “Display pages” table). TRMS measurement of a dis- torted wave (voltage/current). Coupling type: Direct Crest factor: ≤3 (max. 15Ap/500Vp (V L-N) or 15Ap/800Vp (V L-N) Ranges (impedances) AV5 58/100 V (>500 k Ω ) - 1 AAC (≤ 0.3 VA) 58/100 V (>500 kΩ ) - 5 AAC (≤ 0.3 VA) 240/415 V (>500 kΩ ) - 1 AAC (≤ 0.3 VA) 240/415 V (>500 kΩ ) - 5 AAC (≤ 0.3 VA) AV7 100/170 V ((>500 kΩ ) 1 AAC (≤ 0.3 VA) 100/170 V (>500 kΩ ) - 5 AAC (≤ 0.3 VA) 400/690 V (>500 kΩ ) - 1 AAC (≤ 0.3 VA) 400/690 V (>500 kΩ ) - 5 AAC (≤ 0.3 VA) Frequency range 40 to 440 Hz Over-load protection Continuous: voltage/current AV5: 300 V LN/520 VLL/6A AV7: 480 VLN/830 VLL/6A For 1 s AV5 600 V LN/1040 VLL/120A AV7 960 V LN/1660 VLL/120A Keypad 4 keys: ”S” for enter programming phase and password confir- mation, ”UP” and “DOWN” for value programming/function selection, page scrolling “F” for special functions Input Specifications

Specifications are subject to change without notice WM3-96DS260606 3 WM3-96 Scaling factor Programmable within the whole range of retransmis- sion; it allows the retrans- mission management of all values from: 0 to 20 mADC, 0 to ±20 mADC 0 to ±10 mADC, 0 to ±5 mADC 0 to 10 VDC, 0 to ±10 VDC 0 to ±5 VDC 0 to ±1 VDC Variables to be retransmitted All (see table“List of the variables that can be connected to:”...) Response time ≤ 200 ms typical (filter excluded, FFT excluded 3 1/2 dgt indication) Ripple ≤ 1% according to IEC 60688-1 and EN 60688-1 Temperature drift 200 ppm/°C Load: 20 mA output ≤ 600 Ω ±20 mA output ≤ 550 Ω ±10 mA output ≤ 1100 Ω ± 5 mA output ≤ 2200 Ω

10 V output ≥ 10 kΩ

±10 V output ≥ 10 kΩ ± 5 V output ≥ 10 kΩ ± 1 V output ≥ 10 kΩ Insulation By means of optocouplers, 4000VRMS output to measuring input 4000VRMS output to supply input RS422/RS485 output (on request) Multidrop bidirectional (static and dynamic variables) Connections 4 wires, max. distance 1200m, termination directly on the module Addresses 1 to 255, selectable by key-pad Protocol MODBUS RTU /JBUS, (N2 METASYS on request) Data (bidirectional) Dynamic (reading only) All display variables (see also the table, “List of the variables that can be connected to”...) Static (writing only) All configuration parameters, reset of energy, activation of digital output Stored energy (EEPROM) max. 999.999.999 kWh/kvarh Data format 1-start bit, 8-data bit, no parity/even parity, odd parity, 1 stop bit Baud-rate 1200, 2400, 4800 and 9600 selectable bauds Insulation By means of optocouplers,

4000 VRMS output to

RS232 output (on request) Bidirectional (static and dynamic variables) Connections 3 wires, max. distance 15m, Data format 1-start bit, 8-data bit, no parity, 1-stop bit Baud-rate 9600 bauds Protocol MODBUS (JBUS) Other data as for RS422/485 Digital outputs (on request) Up to 4 outputs (combina- tion of alarms and pulse outputs) The working of the outputs: pulse or alarm or both of them is fully programmable and is independent from the chosen output module. Out- puts remotely controlled by the serial communication port Pulse outputs (on request) Number of outputs Up to 4, independent Type From 1 to 1000 programmable pulses for K-M-G Wh, K-M-G varh, open collector (NPN transistor) VON 1.2 VDC/ max. 100 mA VOFF 30 VDC max. Outputs connectable to total and partial energy meters Pulse duration 220 ms (ON), ≥ 220 ms (OFF) According to DIN43864 Insulation By means of optocouplers, measuring input, 4000Vrms output to supply input. Note The outputs can be either open collector type or relay type (for this latter one see the characteristics men- tioned in the ALARMS). Alarms outputs (on request) Number of setpoints Up to 4, independent Alarm type Up alarm, down alarm, up alarm with latch, down alarm with latch, phase assymetry, phase loss, neutral loss Variables to be controlled All (see table“List of the variables that can be connected to:”...) Setpoint adjustment 0 to 100% of the electrical scale Hysteresis 0 to 100% of the electrical scale On-time delay 0 to 255 s Relay status Selectable, Normally de- energized, normally energized Output type Relay, SPDT AC 1-8A, 250VAC DC 12-5A, 24VDC AC 15-2.5A, 250VAC DC 13-2.5A, 24VDC Min. response time ≤ 150 ms, filter excluded, FFT excluded, setpoint on-time delay: ”0s” Insulation 4000 V RMS output to measuring input, 4000VRMS output to supply input Note The outputs can be either relay type or open collector type (for this latter one, see the characteristics mentio- ned in the PULSE OUTPUTS). Output Specifications (cont.)

4 Specifications are subject to change without notice WM3-96DS260606

Operating temperature 0 to +50° C (32 to 122°F) (R.H. < 90% non-condensing) Storage temperature -10 to +60° C (14 to 140° F) (R.H. < 90% non-condensing) Insulation reference voltage 300 VRMS to ground (AV5 input) Insulation 4000 VRMSbetween all inputs/ outputs to ground Dielectric strength 4000 VRMS for 1 minute Noise rejection CMRR 100 dB, 48 to 62 Hz EMC EN 50081-2, EN 50082-2 Other standards Safety requirements: IEC 61010-1, EN 61010-1 Product requirements: IEC 60688-1, EN 60688-1 Product requirements Energy measurements: EN61036, EN61268. Pulse output: DIN43864 Approvals CE, UL, CSA Connector Screw-type, max. 2.5 mm2 wires x 2 Housing Dimensions 96x96x140 mm Material ABS, self-extinguishing: UL 94 V-0 Degree of protection Front: IP65, NEMA4x, NEMA12 Weight Approx. 600 g (packing included) General Specifications AC/DC voltage 90 to 260VAC/DC (standard), 18 to 60VAC/DC (on request), Power consumption ≤ 30VA/12W (90to 260V) ≤ 20VA/12W (18 to 60V) Supply Specifications Password Numeric code of max. 3 di- gits; 2 protection levels of the programming data 1st level Password “0”, no protection 2nd level Password from 1 to 499, all data are protected Transformer ratio For CT up to 30000 A, For VT up to 600 kV Scaling factor Operating mode Electrical scale: compression/ expansion of the input scale to be connected to up to 4 analogue outputs. Electrical range Programmable within the whole measuring range Filter Filter operating range 0 to 99.9% of the input electrical scale Filtering coefficient 1 to 255 Filter action Display, alarm, analogue and serial outputs (fundamental variables: V, A, W and their derived ones) Event logging Only with RS232 + RTC module. The alarms max/min values will be stored with time (hh:mm:ss) and date (dd:mm:yy) references Max. capacity: 480 events Page Variables Max. 4/page, one freely prog. page + 26 variable pages + according to the kind of period selection: up to 12 energy meter pages. Display language English, Italian, French, Ger- man, Spanish Software Functions

Specifications are subject to change without notice WM3-96DS260606 5 WM3-96 Function Description Figure A The sign of measured quant- ity and output quantity re- mains the same. The output quantity is proportional to the measured quantity. Input and output scaling capability Working of the analogue outputs (y) versus input variables (x) Figure B The sign of measured quant- ity and output quantity changes simultaneously. The output quantity is proportion- al to the measured quantity.Figure C The sign of measured quant- ity and output quantity re- mains the same. On the range X0...X1, the output quantity is zero. The range X1...X2 is delineated on the entire output range Y0 = Y1...Y2 and thus presented in strongly expanded form. Figure F The sign of the measured quantity remains the same, that of the output quantity changes as the measured quantity leaves range X0...X1 and passes to range X1...X2 and vice versa. Figure E The sign of the measured quantity changes but that of the output quantity remains the same. The output quant- ity steadily increases from value X1 to value X2 of the measured quantity. Figure D The sign of measured quant- ity and output quantity re- mains the same. With the measured quantity being zero, the output quantity already has the value Y1 = 0.2 Y2. Live zero output. 0 50 A 100 A 0 10 mA 20 mA -100 kW 0 100 kW -1 kW 0 1 kW

80 V 100 V 120 V

-100 kW 0 100 kW 0 10 mA 20 mA 0 50 A 100 A -1 V 0 1 V Waveform of the signals that can be measured Figure G Sine wave, undistorted Fundamental content 100% Harmonic content 0% Arms = 1.1107 | A | Figure H Sine wave, indented Fundamental content 10...100% Harmonic content 0...90% Frequency spectrum 3rd to 50th harmonic Figure I Sine wave, distorted Fundamental content 70...90% Harmonic content 10...30% Frequency spectrum 3rd to 50th harmonic Mode of Operation

6 Specifications are subject to change without notice WM3-96DS260606

Management concept (multi-time) (a) (b) (c) Analysis principle FFT Harmonic measurement Current Up to 50th harmonic Voltage Up to 50th harmonic Type of harmonics THD (VL1) THD odd (VL1) THD even (VL1) and also for the other phases: L2, L3. THD (I L1) THD odd (IL1) THD even (IL1) and also for the other phases: L2, L3. Harmonic phase angle The instrument measures the angle between the single har- monic of “V” and the single harmonic of “I” of the same order. According to the value of the electrical angle, it is possible to know if the distor- tion is absorbed or generated. Note: if the system has 3 wires the angle cannot be measured. Harmonic details For every THD page it is pos- sible to see the harmonic order. Display pages The harmonics content is displayed as a graph showing the whole harmonic spectrum. The information is given also as numerical information: THD in % / RMS value THD odd in % / RMS value THD even in % / RMS value single harmonic in % / RMS value Others The harmonic distortion can be measured in 2-wire, 3-wire or 4-wire systems. Tw: 0.02 Harmonic distortion analysis Time periods Selectable: single time, dual time and multi-time Single time Number of energy meters Total: 4 (9-digit) (no partial meters) Dual time Number of energy meters Total: 4 (9-digit) Partial: 8 (6-digit) Time periods 2, programmable within 24 hours Multi time Number of energy meters T otal: 4 (9-digit) Partial: 48 (6-digit) Time periods 4, programmable within 24 hours Time seasons 3, programmable within 12 months Pulse outputs Connectable to total and partial energy meters (Single time, dual time, multi time periods) Energy metering recording Energy consumption story, recording of energy metering by months, oldest data: 2 months before current month. Recording of total and partial energy metering Energy time period management +Wh, +VArh, –Wh, -VArh max. 4 Time period (24 hours) max. 3 Season (12 months) Partial: up to 48 energy meters (axbxc) Total: up to 4 energy meters (“a” type) Example of Multi-time energy metering trftrf endendstartstart WINTERWINTER

11 OO:OOOO:OO O6:OOO6:OO

22 O6:OOO6:OO O8:OOO8:OO

33 O8:OOO8:OO 1O:OO1O:OO

22 1O:OO1O:OO 16:OO16:OO 33 16:OO16:OO 18:OO18:OO 44 18:OO18:OO 21:OO21:OO TARIFFTARIFF 11 11 21:OO21:OO OO:OOOO:OO startstart endend

Specifications are subject to change without notice WM3-96DS260606 7 WM3-96 Variables that can be displayed in case of a three-phase system, 4-wire connection. No 1st variable 2nd variable 3rd variable 4th variable Note Selectable Selectable Selectable Selectable

1 V L1 V L2 V L3 V L-N sys Sys = ΣΣ

2 V L1-2 V L2-3 V L3-1 V L-L sys Sys = ΣΣ

3 A L1 A L2 A L3 A n

4 W L1 W L2 W L3 W sys Sys = ΣΣ

5 var L1 var L2 var L3 var sys Sys = ΣΣ

6 VA L1 VA L2 VA L3 VA sys Sys = ΣΣ

7 PF L1 PF L2 PF L3 PF sys

8 V L1 A L1 PF L1 W L1

9 V L2 A L2 PF L2 W L2

10 V L3 A L3 PF L3 W L3

11 V L-L sys PF sys var sys W sys Sys = ΣΣ

12 A n PF sys Hz W sys Sys = ΣΣ

13 A n dmd VA dmd PF avg W dmd dmd=demand, avg=average

14 (MAX1) (MAX2) (MAX3) (MAX4) The MAX value can be one of the 15 (MAX5) (MAX6) (MAX7) (MAX8) above mentioned (No. 1 to No. 13) 16 (MAX9) (MAX10) (MAX11) (MAX12) 17 (MIN1) (MIN2) (MIN3) (MIN4) The MIN value can be one of the 18 (MIN5) (MIN6) (MIN7) (MIN8) above mentioned (No. 1 to No. 13)

19 Histogram FFT V1 (THD, TADo, THDe, Single harmonic) Only if analysis V1-A1 is activated

20 Histogram FFT A1 (THD, TADo, THDe, Single harmonic) Only if analysis V1-A1 is activated

21 Histogram FFT V2 (THD, TADo, THDe, Single harmonic) Only if analysis V2-A2 is activated

22 Histogram FFT A2 (THD, TADo, THDe, Single harmonic) Only if analysis V2-A2 is activated

23 Histogram FFT V3 (THD, TADo, THDe, Single harmonic) Only if analysis V3-A3 is activated

24 Histogram FFT A3 (THD, TADo, THDe, Single harmonic) Only if analysis V3-A3 is activated

25 KWh + TOT KWh – TOT Kvar+ TOT Kvar– TOT

26 KWh+ KWh– Kvar+ Kvar– Partial energy meters

Instantaneous effective voltage Instantaneous active power Instantaneous power factor Instantaneous effective current Instantaneous apparent power Instantaneous reactive power Formulas being used for 3-phase measurements Equivalent three-phase voltage Three-phase reactive power Neutral current Three-phase active power Three-phase apparent power Equivalent three-phase power factor (TPF) Total harmonic distortion Harmonic values: THDi-THD of parameter T at phase i Tn,i - value of parameter T at the n’th harmonic of phase i Energy metering kWhi = total consumed active energy at phase i kVArhi = total consumed reactive energy at phase i Pi(t) = total RMS active power at phase i of time t Qi(t) = total RMS reactive power at phase i of time t t1 t2 = starting and ending time points of consumption recording Pn,i = total RMS active power at phase i of discrete time n Qn,i = total RMS reactive power at phase i of discrete time n ∆t = time interval between two suc- cessive power consumptions n1, n2 = starting and ending discrete time points of consumption recording An = AL1+A L2+A L3

8 Specifications are subject to change without notice WM3-96DS260606

List of the variables that can be connected to:

• max/min variable detection;
• analogue outputs;
• alarm outputs.

1 V L1 o x x o o

2 V L2 o x x o o

3 V L3 o x x o o

4 V L-N sys o x x o o Sys = ΣΣ

5 V L1-2 x x x x x

6 V L2-3 o x x x x

7 V L3-1 o x x x x

8 V L-L sys o x x x x Sys = ΣΣ

9 A L1 x x x x x

10 A L2 o x x x x

11 A L3 o x x x x

12 A n o x x o o Neutral current

13 W L1 x x x o o

14 W L2 o x x o o

15 W L3 o x x o o

16 W sys o x x x x Sys = ΣΣ

20 var sys o x x x x Sys = ΣΣ

21 VA L1 x x x o o

22 VA L2 o x x o o

23 VA L3 o x x o o

24 VA sys o x x x x Sys = ΣΣ

25 PF L1 x x x o o

26 PF L2 o x x o o

27 PF L3 o x x o o

28 PF sys o x x x x Sys = ΣΣ

29 Hz x x x x x

30 THD V1 x x x x x if FFT V1-A1 is activated

31 THDo V1 x x x x x if FFT V1-A1 is activated

32 THDe V1 x x x x x if FFT V1-A1 is activated

33 THD V2 o x x x x if FFT V2-A2 is activated

34 THDo V2 o x x x x if FFT V2-A2 is activated

35 THDe V2 o x x x x if FFT V2-A2 is activated

36 THD V3 o x x x x if FFT V3-A3 is activated

37 THDo V3 o x x x x if FFT V3-A3 is activated

38 THDe V3 o x x x x if FFT V3-A3 is activated

39 THD A1 x x x x x if FFT V1-A1 is activated

40 THDo A1 x x x x x if FFT V1-A1 is activated

41 THDe A1 x x x x x if FFT V1-A1 is activated

42 THD A2 o x x x x if FFT V2-A2 is activated

43 THDo A2 o x x x x if FFT V2-A2 is activated

44 THDe A2 o x x x x if FFT V2-A2 is activated

45 THD A3 o x x x x if FFT V3-A3 is activated

46 THDo A3 o x x x x if FFT V3-A3 is activated

47 THDe A3 o x x x x if FFT V3-A3 is activated

48 A n dmd x x x x x Integration time programmable from 1 to 30 minutes

49 VA dmd x x x x x Integration time prog. from 1 to 30 min. 50 PF avg x x x x x Integration time prog. from 1 to 30 min. 51 W dmd x x x x x Integration time prog. from 1 to 30 min. 52 ASY o x x x x Integration time prog. from 1 to 30 min. Note: (x) stands for an “available” variable, (o) stands for a “not-available” variable.

Specifications are subject to change without notice WM3-96DS260606 9 WM3-96 Basic unit Slot A Slot B Slot C Slot D Single analogue output Dual analogue output RS485 input/output Single relay output (*) Single open collector out (*) Dual relay output (*) Dual open coll. out (*) 4 open coll. output (*) 3 digital inputs Wiring Diagrams Single phase input connections CT connectionDirect connection CT and VT connection Fig. 2Fig. 1 Fig. 3 Type N. of Ordering channels code WM3-96 base AD 1016H WM3-96 N2 METASYS base AD 1016HN2 AV5.3 measuring inputs AQ 1018 AV7.3 measuring inputs AQ 1019 18-60VAC/DC power supply AP1021 90-260VAC/DC power supply AP1020 20mADC analogue output 1 AO1050 10VDC analogue output 1 AO1051 ±5mADC analogue output 1 AO1052 ±10mADC analogue output 1 AO1053 ±20mADC analogue output 1 AO1054 ±1VDC analogue output 1 AO1055 ±5VDC analogue output 1 AO1056 ±10VDC analogue output 1 AO1057 20mADC analogue output 2 AO1026 10VDC analogue output 2 AO1027 ±5mADC analogue output 2 AO1028 ±10mADC analogue output 2 AO1029 ±20mADC analogue output 2 AO1030 ±1VDC analogue output 2 AO1031 ±5VDC analogue output 2 AO1032 ±10VDC analogue output 2 AO1033 RS485 output 1 AR1034 Relay output 1 AO1058 Relay output 2 AO1035 Open collector output 1 AO1059 Open collector output 2 AO1036 Open collector output 4 AO1037 Digital inputs 3 AQ1038 RS232 output + RTC (1) 1 AR1039 (1) The RS232 communication port works as alternative of the RS485 module. N2-Open Metasys protocol full compatibility (available on request). (*) alarm or pulse The available modules The possible module combinations Basic unit Slot E RS232 input/output + RTC

10 Specifications are subject to change without notice WM3-96DS260606

CT connection (4-wire system)Direct connection (4-wire system) CT and VT connection (4-wire system) Wiring Diagrams (cont.) Three-phase, 3-wire ARON input connections - Unbalanced loads CT connection (3-wire system) CT and VT connection (3-wire system) Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Three-phase wire input connections - Balanced loads CT connection (3-wire system)Direct connection (3-wire system) CT and VT connection (3-wire system) Fig. 4 Fig. 5 Fig. 6 Fig. 12 CT and VT connection (3-wire system) Three-phase, 3-wire input connec- tions - Unbalanced loads

Specifications are subject to change without notice WM3-96DS260606 11 WM3-96 CT connection (4-wire system)CT connection (3-wire system) CT and VT connection (4-wire system) Fig. 13 Fig. 14 Fig. 15 Wiring Diagrams (cont.) Three-phase four-wire input connections - Unbalanced load Three-phase three-wire input connections Unbalanced load Wiring diagrams (optional modules) 4 open collector outputs: The load resistance (Rc) must be designed so that the closed contact current is lower than 100mA; the VDC voltage must be lower than or equal to 30V. VDC: power supply voltage output. Vo+: positive output contact (open collector transistor). GND: ground output contact (open collector transistor). AO1050 1 analogue output (mA) AO1058 1 relay output AO1051 1 analogue output (V) AO1026 2 analogue outputs (mA) AO1035 2 relay outputs AO1027 2 analogue outputs (V) AO1038 3 digital inputs VDC VDC VDC VDC AO1037

12 Specifications are subject to change without notice WM3-96DS260606

• for value programming/function selection, page scrolling - “F” for special functions 2. Display Istantaneous measurements: - 4-digit (maximum read-out 9999) Energies: - 9-digit (maximum read-out 999999999). Alphanumeric indication by means of LCD display for: - Displaying the configuration parameters - All the measured variables. 1. Key-pad Set-up and programming procedures are easily controlled by the 4 pushbuttons. - ”S” for enter programming phase and password confirmation, Wiring diagrams (optional modules, cont.) RS422/485 4-wires connection: additional devices provided with RS422/485 (that is RS 1, 2, 3...N) are connected in parallel. The termination of the serial output is carried out only on the last instrument of the network, by means of a jumper between (Rx+) and (T). RS422/485 2-wires connection: additional devices provided with RS422/485 (that is RS 1, 2, 3...N) are connected in parallel. The termination of the serial output is carried out only on the last instrument of the network, by means of a jumper between (Rx+) and (T).

Specifications are subject to change without notice WM3-96DS260606 13 WM3-96 Terminal boards AP1021 18-60VAC/DC power supply AP1020 90-260 VAC/DC power supply AO1050 (20mADC) AO1051 (10VDC) AO1052 (±5mADC) AO1053 (±10mADC) AO1054 (±20mADC) AO1055 (±1VDC) AO1056 (±5VDC) AO1057 (±10VDC) AO1026 (20mADC) AO1027 (10VDC) AO1028 (±5mADC) AO1029 (±10mADC) AO1030 (±20mADC) AO1031 (±1VDC) AO1032 (±5VDC) AO1033 (±10VDC) AR1034 RS485 port AO1035 Dual relay output AO1059 Single open collector output AO1036 Dual open collector output AO1058 Single relay output AQ1038

3 Digital inputs

Single analogue output modules Dual analogue outputs Digital output modules Other input/output modules Power supply modules AO1037 4 open collector outputs