WM2-96 ETC2 | Alldatasheet

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Technical content

Specifications are subject to change without notice WM2-96DS0303 1

  • Class 1 (current/voltage)
  • Modular power analyzer
  • Front size: 96x96 mm
  • 3-dgt/6-dgt µP-based indicator
  • Manual or automatic scrolling of system and single phase: kW, kVAr, PF, kWh, kVArh, A, V L-L avg, VL1-N, VL2-N, VL3-N.
  • TRMS measurement of distorted waves (voltage/current)
  • All configuration functions selectable by built-in key-pad
  • Password protection of programming parameters
  • Degree of protection (front): IP 65
  • Optional pulse output (according to DIN43864)
  • Optional serial RS 422 /485 port
  • MODBUS, JBUS protocol. Product Description Model Range code System Power supply 1st output 2nd output µP-based modular power analyzer with a built-in con- figuration key-pad. The pow- er, power factor, current and voltage are system and sin- gle phase measurements and indications. The housing is easy to mount on a panel and ensures a degree of pro- tection (front) of IP 65. Energy Management Modular Power Analyzers Type WM2-96Type 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: 250/433 VAC - 5 AAC (max. 300 V (L-N)/

520 V (L-L) - 6 A)

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

830 V (L-L) - 6 A)

50/60 Hz 1) 2) 50/60 Hz 1) 2) C: 115 VAC, -15% D: 230 VAC, -15% +10%, 50/60 Hz (standard) 2) L: 18 to 60 VDC/AC 3) H: 90 to 260 VDC/AC 3) 1st output (pulse) XX: No output (standard) O1: Single open collector output (30V/100mADC) 1) O2: Dual open collector output, the second one is the copy of the first one, like “O1” R1: Single relay output, (AC1-8AAC, 250VAC) 1) R2: Dual relay output, the second one is the copy of the first one, like “R1” 1) 2nd output X: No output (standard) S: Serial port, RS 485 multidrop bidirec- tional Rated input Current 2 inputs (one/three-phase balanced load) 6 inputs (one/three-phase unbalanced load) Voltage 2 inputs (one/three-phase balanced load) 4 inputs (one/three-phase unbalanced load) Insulation among the voltage and the current inputs: 2000Vrms; among the current inputs:

2000 Vrms

Temperature drift ±250 ppm/°C Display Backlighted LCD, h 13mm, 3-dgt (instantaneous meas.) 6-dgt (energies) Input Specifications Accuracy (48 to 62 Hz) Un: 250V (AV5), 400V (AV7) In: 5A Voltage/current 0.5 to 1.2 Un) Active power 0 to 1.2 In, 0.5 to 1.2 Un) Reactive power 0 to 1 In, 0 to 1 Un) Power factor (PF) (0.6 to 1.2 In, 1 to 1.2 Un) Energy ±1% RDG (kWh), ±2% RDG (@ 25°C ± 5°C, R.H. ≤ 60%) (kvarh), (PF ≥ 0.7L/C, 0 to 1.2 In, 0.5 to 1.2 Un) Additional errors Power supply ±0.5% rdg, -15 +10% p.s. Magnetic field < 0.1% f.s. @ 400 A/m 1) On request 2) Warning: this power supply cannot be used if the RS485 module is needed 3) Compatible with any kind of output

2 Specifications are subject to change without notice WM2-96DS0303

Pulse output(on request) Number of outputs 1, independent Static type From 0.1 to 999.9 pro- (according to DIN 43864) grammablepulses for kWh, KVArh, open collector (NPN transistor) V ON 1.2 VDC/ max. 100 mA VOFF 30 VDC max. Relay type 1 x SPDT AC 1 - 8A, 250VAC DC 12 - 5A,24VDC AC 15 - 2.5A, 250VAC DC 13 - 2.5A, 24VDC Pulse duration 200 ms (ON), ≥ 200 ms (OFF) Insulation By means of optocouplers,

4000 Vrms output to

measuring input, supply input. Serial port (on request) Type RS422/RS485; 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/JBUS Data (bidirectional) Dynamic (reading only) System variables: P , Q, PF , V L-L, energies, Single phase variables: P L1, QL1, PFL1, VL1-N, AL1, PL2, QL2, PFL2, VL2-N, AL2, PL3, QL3, PFL3, VL3-N, AL3 Static (writing only) All programming data, reset of energy: - partial kWh - partial kVArh - total kWh - total kVArh Stored energy (EEPROM) ≤ 999999 kWh ≤ 999999 kVArh Data format 1-start bit, 8-data bit, no parity/even parity, 1 stop bit Baud-rate 1200, 2400, 4800 and 9600 selectable bauds Insulation By means of optocouplers, Decimal point position Instantaneous measurements: Automatic selection accord- ing to the current trans- former ratio of the CT being connected (max. indication - single phase): CT ratio ≤ 5 : 11.11 (25.00A) CT ratio ≤50.0: 111.1 (250.0A) CT ratio ≤ 500.0 : 1111 (2500A) CT ratio ≤999.9 : 11110 (6000A) Energy measurements: max. resolution:1 Wh/1 VArh min. resolution: 1 kWh/1 kVArh Max. and min. indication Voltage Max. 600 min. 0 Current (CT ratio = 1) Max. 6.00 min. 0.00 PF Max. 1.00 min. 0.00 Power (CT ratio = 1) Max. 5.40 min. 0.00 Active energy Max. 999999 min. –199999 Reactive energy Max. 999999 min. 0 Sampling rate 3 times / second Measurements System variables kW, kVAr, PF , V L-L, A, Total energies kWh, kvarh Partial energies kWh, kvarh (the meters are reset automatically when the values reach 14999*CT ratio) Single phase variables kW, kVAr, PF , V L-N, A Measurement method T RMS measurement of a dis- torted voltage/current wave Coupling type: Direct Crest factor: ≥ 3 Ranges (impedances)

250 V/433 V (≥400kΩ)

400V/690V (≥650kΩ) Frequency range 48 to 62 Hz Over-load protection Un: 250V (AV5), 400V (AV7) In: 5A Continuous: voltage/current 1.2 Un /In For 1 s Voltage: 2 Un Current: 20 In Keyboard 4 keys: ”∆∇”: - to enter programming phase and password con- firmation; - for value programming and basic measurement scrolling. “L”: - for confirmation of new programmed values and going ahead to the next programming step, - single phase measure- ment scrolling. “R”: - for the reset of the partial counted active and/or reactive energy. Input Specifications (cont.)

Specifications are subject to change without notice WM2-96DS0303 3 WM2-96 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 255, all data are protected Measurement scrolling System: Active power (kW), reactive power (kVAr), power factor (cos ϕ), current (A), average phase-phase volt- age (V) total and partial active ener- gy (kWh), total and partial reactive energy (kVArh) Partial energy meters: the counters of kWh and kVArh are automatically reset when the energy reaches the value (14999*CT). Example: the CT is a 100A/5A so the ratio is 20, consequently the maximum counted energy is 299980 kWh or kVArh. Single phase: Active power (kW), reactive power (kVAr), power factor (cos ϕ), current (A), phase-neutral voltage (V) Transformer ratio For CT up to 5000 A Programmable ratio 0.1 to 999.9 Digital Filter Filter operating range 0 to 100% of the input electrical scale Filtering coefficient 1 to 64 Filter action On the display and on the variable being transmitted by the serial communication port. Software Functions AC voltage 230 VAC (standard), -15%+10% 50/60 Hz

24 VAC, 48 VAC, 115 VAC

(on request), -15%+10% 50/60 Hz 18 to 60VDC/AC 90 to 260VDC/AC Power consumption ≤ 30VA / 12W (90 to 260V) ≤ 20VA / 12W (18 to 60V) Supply Specifications 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 Insulation 4000 Vrms between 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 Safety standards IEC 61010-1, EN 61010-1 Other standards Pulse output: DIN43864 Approvals CE UL, CSA Connector Screw-type, max. 2.5 mm2 wires x 2 Housing Dimensions 96 x 96 x 140 mm Material ABS, self-extinguishing: UL 94 V-0 Degree of protection Front: IP65 Weight Approx. 500 g (packing included) General Specifications

4 Specifications are subject to change without notice WM2-96DS0303

Accuracy class of the instrument as a relation of PI/Pn and cos ϕ (power factor) Test conditions: V = 0.8 to 1.2 Un, I = 0.1 to 1.2 In, f = 48 to 62 Hz Input Star Delta Current voltage voltage AV5 Un: 250 V Un: 430 V In: 5 A P I/QI (installation power) One phase system: PI = UI · II · cos ϕ QI = UI · II · sin ϕ Three phase, 3-wire system: PI = √3 · UI · II · cos ϕ QI = √3 · UI · II · sin ϕ Three phase, 4-wire system: PI = 3 · UI · II · cos ϕ QI = 3 · UI · II · sin ϕ where: UI = the real star voltage of the electrical system being measured. I = the maximum phase cur- rent of the electrical system being measured. Cos ϕ = the average cos ϕ of the electrical system being measured. Pn /Qn (rated power of the instrument): One phase system: Pn = Qn = Un · In · CT(ratio) Three phase, 3-wire system: Pn = Qn = √3 · Un · In · CT(ratio) Three phase, 4-wire system: Pn = Qn = 3 · Un · In · CT(ratio) where: Un = the rated input voltage of WM2-96. In = the rated input current of WM2-96. CT (ratio) = the value of the current transformer ratio. Example 1: Model AV5.3 (3-wire system). UI = 400 V (delta voltage) II = 265 A (single phase cur- rent) Cos ϕ = 0.85 (system power factor) (CT=300A) Un = 430 V In = 5 A CT (ratio) = 300 = 605 PI = √3 · UI · II · cos ϕ = 155.87 kW Pn = √3 · Un · In · CT (ratio) = 233.17 kW PI = 155.87 = 0.698Pn 223.17 Example 2: Model AV5.3 (4-wire system). UI = 230 V II = 110 A (CT=300A) Cos ϕ = 0.85 (sin ϕ = 0.52) Un = 250 V In = 5 A CT (ratio) = 300 A = 605 A Qn = 3 · UI · II · sin ϕ = 3 · 230 · 110 · 0.52 = 39.46 kvar Q n = 3 · Un · In · CT (ratio) = 3 · 250 · 5 · 60 = 225 kvar P I = 39.46 = 0.175Pn 225 In both examples the accura- cy of the measurement is 1% f.s. when considering the changing of the measured voltage from 0.9 Un to 1 Un and the measured current from 0.1 In to 0.9 In with a cos ϕ of 0.85 (sin ϕ 0.52). PI / Pn 1%2% QI / QnActive Power Reactive Power Test conditions: V = 0.8 to 1.2 Un, I = 0.1 to 1.2 In, f = 48 to 62 Hz

Specifications are subject to change without notice WM2-96DS0303 5 WM2-96 Wiring Diagrams Single phase input connections N L1 N L3 L2 U 1 3 5 2 4 6I L1 L2 L3 8 7 10 N L1 N L3 L2 U 1 3 5 2 4 6I L1 L2 L3 8 7 10 CT connectionDirect connection Three phase 3-wire input connections - Balanced loads CT connection (3-wire system)Direct connection (3-wire system) Fig. 1 Fig. 2 Fig. 3 Fig. 4 Waveform of the signals that can be measured Figure G Sine wave, undistorted Fundamental content 100% Harmonic content 0% A rms = 1.1107 | A | Figure H Sine wave, indented Fundamental content 10...100% Harmonic content 0...90% Frequency spectrum 3rd to 16th harmonic Required result: additional error < 1% Figure I Sine wave, distorted Fundamental content 70...90% Harmonic content 10...30% Frequency spectrum 3rd to 15th harmonic Required result: additional error < 0.5% Mode of Operation (cont.)

6 Specifications are subject to change without notice WM2-96DS0303

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

  1. Key-pad Set-up and programming procedures are easily controlled by the 4 pushbuttons. and - To scroll all the basic measurements (system variables) - To increase or decrease programming values ML Specifications are subject to change without notice WM2-96DS0303 7 WM2-96 L L L L L L L L L L L L L L L L L L L L L L L L SINGLE PHASE VARIABLES PHASE 1 PHASE 2 PHASE 3 V L1 - L2 - L3 V (V )L1-N (V ) V L2 (V ) V L3 I L3 I L1I L1 L2 L3 L1 L2 L3 kW L1 L2 L3 kVAr L1 L2 L3 I L2 total partial kVARh kWh kWh kVARh cosϕ cosϕ cosϕ cosϕ kW kW kW kVAr kVAr kVAr L2-N L3-N(average total partial SYSTEM VARIABLE Front Panel Description - To enter into the programming procedure and select programming functions together with the ”L” key. “L”: To scroll all the single phase variable of each basic measurement “R”: To reset the partial counted energies (kWh, kVArh). 2. Display Instantaneous measurements: - 3-digit (maximum read-out 999) Energies: - 6-digit (maximum read-out 999999). Alphanumeric indication by means of LCD display for: - Displaying the configuration parameters - All the measured variables. Sequence of the variables on the display

8 Specifications are subject to change without notice WM2-96DS0303

Type N. of Ordering code Note channels WM2-96 base + AV5.3 input AB1012 WM2-96 base + AV7.3 input AB1013 24VAC power supply AP1025 Neither UL nor CSA approved 48VAC power supply AP1024 Neither UL nor CSA approved 115VAC power supply AP1023 Neither UL nor CSA approved 230VAC power supply AP1022 Neither UL nor CSA approved 18-60VAC/DC power supply AP1021 90-260VAC/DC power supply AP1020 RS485 port 1 AR1034 Relay output 1 AO1058 Relay output 2 AO1035 The second output can be used as redoundant output Open collector output 1 AO1059 Open collector output 2 AO1036 The second output can be used as redoundant output Dimensions The available modules Slot Basic unit RS485 port Single relay output (pulse) Single open collector output (pulse) The possible module combinations Slot Basic unit RS485 port Dual relay output (pulse) Dual open collector output (pulse) B Out 1 D Out 2 B Out 1 D Out 2

Specifications are subject to change without notice WM2-96DS0303 9 WM2-96 Terminal boards AP1021 18-60VAC/DC power supply AP1020 90-260 VAC/DC power supply AR1034 RS485 port AO1035 Dual relay output AO1059 Single open collector output AO1036 Dual open collector output AO1058 Single relay output Digital output modules Other input/output modules Power supply modules AP1025 24VAC power supply AP1024 48VAC power supply AP1023 115VAC power supply AP1022 230VAC power supply