YZ WM3-96 Technical data

Energy Management
Modular Smart Power Quality Analyzer
Type WM3-96

• Class 0.5 (current/voltage)

2-bit µP-based modular smart power quality analyzer

• 3

• 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

x4-dgt instantaneous variable read-out

• 4

• 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

isplay refresh time: 100 msec @ 50 Hz

• D

• 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 MET ASYS protocols on r equest)

Product Description

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-

Type Selection

Range code

240/415 VAC -

AV5:

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

System

3:

One phase, three­phase system
(3 or 4 wires, balan­ced load)
Three phase system
(3 or 4 wires, unba­lanced load)

Power supply

L:

18 to 60VAC/DC

H: 90 to 260VAC/DC

1)

On request

1)

1)

ticularly indicated for those
application where there is the
need to control the power
supply quality. The variables
being displayed are more
than 400.

Slot A (signal r

XX:
A1:

etransmission)

None
Single analogue output,
20mADC (standard)

A2:

Single analogue output,

5mADC

±

A3:

Single analogue output,
±10mADC

A4:

Single analogue output,
±20mADC

B1:

Dual analogue output,

1)

1)

1)

20mADC (standard)

B2: Dual analogue output,

±

5mADC

B3: Dual analogue output,

10mADC

±

B4: Dual analogue output,

20mADC

±

1)

1)

1)

V1: Single analogue output,

10VDC (standar

V2: Single analogue output,

±1VDC

V3: Single analogue output,

±5VDC

V4: Single analogue output,

10VDC

±

d)

1)

1)

1)

W1: Dual analogue output,

10VDC (standard)

W2: Dual analogue output,

±1VDC

W3: Dual analogue output,

±

W4: Dual analogue output,

±10VDC

5VDC

1)

1)

1)

Ordering Key

WM3-96AV53H XX XX XX XX X

Model
Range code
System
Power supply
Slot A
Slot B
Slot C
Slot D
Options

Slot B (signal r

XX:
B1:

etransmission)

None
Dual analogue output,
20mADC (standard)

B2: Dual analogue output,

±5mADC

B3: Dual analogue output,

10mADC

±

B4: Dual analogue output,

±20mADC

1)

1)

1)

W1: Dual analogue output,

10VDC (standard)

W2: Dual analogue output,

±1VDC

W3: Dual analogue output,

±5VDC

W4: Dual analogue output,

10VDC

±

1)

1)

1)

S1: Serial port,

RS485 multidr
bidirectional

1)

op,

NNoottee::

Slot A + Slot B
Max 4 analogue outputs

Slot C + Slot D
max 4 digital outputs

Slot C (alarm or pulse out)

XX:

None

R1:

Single relay output,
(AC1-8AAC, 250VAC)

R2: Dual relay output,

(AC1-8AAC, 250VAC)

O1:

Single open collector

1)

1)

output (30V/100mADC)

O2:

Dual open collector out­put (30V/100mADC)

D1:

3 digital inputs

1)

1)

Slot D (alarm or pulse out)

XX:

None

R2: Dual relay output,

(AC1-8AAC, 250V

O2:

Dual open collector out
put (30V/100mADC)

O4:

4 open collector out
puts (30V/100mADC)

AC)

1)

1)

1)

Options

X: None
S: Serial RS232 + RTC
N: With N2 Metasys protocol
C: options: S+N

1)

-

-

1

WM3-96

Input Specifications

umber of inputs

N

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:

7.5 to 25VDC/<8mA

1

Accuracy

urrent (A

C

(displa y, RS232, RS4 8 5) In: 5A, If.s.: 6A, start-up I: 15mA

A

A

,

,

1

L

)

2

3

L

L

±0.5% RDG (0.2 to1.2 In)
±5mA (0.02 to 0.2 In)

Current (A

) ±1% RDG (0.2 to 1.2 In)

n

@ 40 to 100 Hz

Voltage AV5 range: ±0.5% RDG (48 to 300 V

±1% RDG (84 to 519 V

AV7 range: ±0.5% RDG (80 to 480 V

1% RDG (139 to 830 V

±
includes also:
frequency , power supply
and output load influences

Frequency ±0.1% RDG (40 to 440 Hz)
Active power

(@ 25°C ± 5°C, R.H. ≤ 60%) ±0.5% (RDG + FS) (PF 0.5 L/C,

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

(@ 25°C ± 5°C, R.H. ≤ 60%) ±0.5% (RDG + FS) (PF 0.5 L/C,

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

(@ 25°C ± 5°C, R.H. ≤ 60%) ±0.5% (RDG + FS)

(0.1 to 1.2 In, AV5 range) or
±1% RDG
(0.1 to 1.2 In, AV5 range)

gies

Ener

(@ 25°C ± 5°C, R.H. ≤ 60%) Active: class 1 according to

EN61036
Reactive: class 2 accor
to EN61268
Ib: 5A, Imax: 6A

0.1Ib: 500mA
Start up current: 20mA
Un: 240V (AV5), 400V (A V7)

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

0.3%RDG, 60% to 90% R.H.

Humidity

≤

Input frequency ≤ 0.4%RDG, 62 to 400 Hz

L-N

)

L-L

L

L-L

ding

agnetic field ≤ 0.5%RDG, @ 400 A/m

M

Temperature drift

ampling rate

S

≤200ppm/°C

400 samples/s @ 50Hz

6

Display Graph LCD, 128x64pixel,

back-lighted. Selectable
read-out for the instanta­neous variables: 4x4-dgt or

1

4x3

/2-dgt

otal Energies: 4x9-dgt;

T

artial: 4x6-dgt

P

Max. and min. indication Max. 9999 (999,999,999),

Min. -9999 (–999,999,999)

Measurements Current, voltage, power,

energy, harmonic distortion

)
)

-N

)

(see “Display pages” table).
TRMS measurement of a dis­torted 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 kΩ) -

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 k
1 AAC (≤ 0.3 VA)
400/690 V (>500 kΩ) ­5 AAC (≤ 0.3 VA)

equency range

Fr

-load protection

Over

Continuous: voltage/current AV5: 300 V

40 to 440 Hz

AV7: 480 V

LN
LN

For 1 s

AV5 600 V

/1040 VLL/120A

LN

AV7 960 VLN/1660 VLL/120A

Keypad 4 keys:

”S” for enter programming
phase and password confir­mation,
”UP” and “DOWN” for
value programming/function
selection, page scr
“F” for special functions

) -

) -

Ω

/520 VLL/6A
/830 VLL/6A

olling

Output Specifications

Analogue outputs (on r

Number of outputs Up to 4 (on request)
Accuracy ±0.2% FS

Range 0 to 20 mADC,

2

equest)

°C ±5°C, R.H. ≤60%)

(@ 25
0 to ±20 mADC

10 mADC,

±

0 to
0 to ±5 mADC
0 to 10 VDC,

10 VDC

±

0 to

5 VDC

±

0 to
0 to ±1 VDC

WM3-96

Output Specifications (cont.)

Scaling factor Programmable within the

hole r a n g e of retransmis-

w

ion; it allows the retrans-

s
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

to ±5 VDC

0
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

emperature drift 200 ppm/°C

T
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,

4000V

output to

MS

R

measuring input
4000V

output to supply input

RMS

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 (r

eading 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

,

, 1 stop bit

Baud-rate

parity/even parity

odd parity

1200, 2400, 4800 and 9600

selectable bauds
Insulation By means of optocouplers,

4000 V

RMS

output to
measuring inputs
4000 V

output to

RMS

supply input

RS232 output (on r

equest)

ectional (static and

Bidir
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

igital outputs (on request)

D

p to 4 outputs (combina-

U

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.

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)

1.2 VDC/ max. 100 mA

V

N

O

V

30 VDC max.

OFF

Outputs connectable to total

and partial energy meters
Pulse duration

220 ms (ON), ≥

220 ms (OFF)

According to DIN43864
Insulation By means of optocouplers,

4000 V

output to

rms

measuring input,

4000V

output to supply input.

rms

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
Hysteresis
On-time delay

0 to 100% of the electrical scale

0 to 100% of the electrical scale

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,
4000V

output to supply input

RMS

Note The outputs can be either

relay type or open collector
type (for this latter one, see
the characteristics mentio-

in the PULSE OUTPUTS).

ned

Out-

,

3

WM3-96

Software Functions

Password Numeric code of max. 3 di-

1st level Password “0”, no protection

nd level Password from 1 to 499, all

2

Transformer ratio For CT up to 30000 A,

Scaling factor

Operating mode Electrical scale: compression/

Electrical range Programmable within the

Filter

Filter operating range 0 to 99.9% of the
Filtering coefficient 1 to 255

gits; 2 protection levels of
the programming data

ata are protected

d

For VT up to 600 kV

expansion of the input scale
to be connected to up to 4
analogue outputs.

whole measuring range

input electrical scale

Supply Specifications

Filter action Display, alarm, analogue

Event logging Only with RS232 + RTC

age Variables

P

Display language English, Italian, French, Ger-

and serial outputs
(fundamental variable s:

, A, W and their derived ones)

V

module. The alarms max/min

alues will be stored with

v

ime (hh:mm:ss) and date

t

dd:mm:yy) references

(
Max. capacity: 480 events

ax. 4/page, one freely prog.

M
page + 26 variable pages +

ing to the kind of

d

accor
period selection: up to 12
energy meter pages.

man, Spanish

AC/DC voltage 90 to 260VAC/DC (standard),

18 to 60VAC/DC (on request),

General Specifications

Operating temperatur

Storage temperatur

Insulation reference voltage 300 V
Insulation 4000 V

Dielectric strength 4000 V
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

e

e

0 to +50
(R.H. < 90% non-condensing)

-10 to +60
(R.H. < 90% non-condensing)

outputs to gr

C (32 to 122°F)

°

14 to 140

C (

°

to ground (AV5 input)

RMS

betweenall inputs/

RMS

ound

for 1 minute

RMS

F)

°

Power consumption ≤30VA/12W (90to 260V)

equirements Energy measurements:

oduct r

Pr
Pulse output:

ovals

Appr

Connector Scr ew-type,

Housing

Dimensions 96x96x140 mm
Material

Degree of protection Front: IP65, NEMA4x, NEMA12
Weight Approx. 600 g

20VA/12W (18 to 60V)

≤

EN61036, EN61268.
DIN43864

CE,
UL, CSA

max. 2.5 mm2wir

ABS,
self-extinguishing: UL 94 V-0

(packing included)

es x 2

4