Page 1

Power analyzers and Energy Meters
Multifunction indicator
Type WM12-DIN
• Accuracy ±0.5 F.S. (current/voltage)
• Multifunction indicator
• Display of instantaneous variables: 3x3 digit
• Variable system and phase measurements: W, W
, VA, VA
var
• A
, W
max
• TRMS meas. of distorted sine waves (voltages/currents)
• Power supply: 24V, 48V, 115V, 230V, 50-60Hz; 18 to 60VDC
• Protection degree (front): IP 40
• Front dimensions: 6 DIN modules
• Optional RS422/485 serial output
• Alarms (visual only) V LN, An
dmd
dmd max
, V, A, An, Hz
, PF
indication
dmd
,
Product Description
3-phase multifunction power
indicator with built-in programming key-pad. Particularly recommended for displaying the main electrical
variables.
Housing for DIN-rail mounting, (front) protection degree
IP40 and optional RS485
serial output.
Type Selection
Range codes
AV5: 400/660V
VL-N: 185 V to 460 V
VL-L: 320 V to 800 V
AV6: 100/208V
VL-N: 45 V to 145 V
VL-L: 78 V to 250 V
Phase current: 0.03A to 6A
Neutral cur
rent: 0.09 to 6A
/5(6)AAC
L-L
/5(6)AAC
L-L
System
3 : 1-2-3-phase,
unbalanced load,
with or without
neutral
Input specifications
Rated inputs
Current 3 (shunt)
oltage
V
, RS485)
Accuracy
(@25
Current 0.25 to 6A: ±(0.5% FS +1DGT)
Neutral current 0.25 to 6A: ±(1.5% FS +1DGT)
Phase-phase voltage
Phase-neutral voltage ±(0.5% FS + 1 DGT)
Active and Apparent power, 0.25 to 6A: ±(1% FS +1DGT);
Power factor 0.03A to 0.25A: ±(1% FS
Reactive power 0.25 to 6A: ±(2% FS +1DGT);
Frequency
Additional errors
Humidity
Temperature drift ≤
(display
°C ±5°C, R.H. ≤60%) 1150W-VA-var, FS:230VLN,
4
7DGT
±
V5:
with CT=1 and VT=1 A
400VLL; AV6: 285W-VA-var,
FS:57VLN, 100VLL
0.03A to 0.25A:
0.09A to 0.25A: ±7DGT
±(1.5%
+5DGT)
0.03A to 0.25A: ±(2% FS
+5DGT)
±0.1%Hz (48 to 62Hz)
≤
FS +1 DGT)
0.3% FS, 60% to 90% RH
200ppm/°C
How to order
Model
Range code
System
Power supply
Option
Power supply
24VAC
A:
-15+10%, 50-60Hz
B: 48VAC
-15+10%, 50-60Hz
C: 115VAC
-15+10%, 50-60Hz
D: 230VAC
-15+10%, 50-60Hz
3: 18 to 60VDC
Sampling rate 1400 samples/s @ 50Hz
Display refresh time 700ms
Display
ype
T
Read-out for the instant. var. 3x3 DGT
Measurements Current, voltage, power,
Coupling type Direct
Crest factor < 3, max 10A peak
Input impedance
400/660V
100/208V
Current ≤ 0.02Ω
Frequency 48 to 62 Hz
Overload protection
Continuos voltage/current 1.2 F.S.
For 500ms: voltge/current 2 Un/36A
V5)
(A
L-L
V6)
(A
L-L
WM12-DIN AV5 3 D X
Options
X:
None
S:
RS485 output
1700 samples/s @ 60Hz
LED, 9mm
power factor, frequency
TRMS measurement of
distorted waves.
1 M
5%
Ω ±
453 K
Ω ±
5%
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WM12-DIN
RS485 Serial Output Specifications
RS422/RS485 (on request)
Type Multidrop
Connections 2 or 4 wires, max. distance
Addresses 1 to 255, key-pad selectable
Protocol MODBUS/JBUS
bidirectional (static and
dynamic variables)
1200m, termination directly
on the instrument
Software functions
Password Numeric code of max. 3
1st level Password “0”, no
2nd level Password from 1 to 999,
System selection 3-phase with neutral
Transformer ratio
CT 1 to 999
VT 1.0 to 99.9
Filter
Operating range 0 to 99.9% of the input
Filtering coefficient 1 to 16
Filter action Measur
digits; 2 protection levels
of the programming data
protection
all data are protected
3-phase without neutral
3-phase ARON
2-phase
Single phase
electrical scale
ements, alarms,
serial output
(fundamental variables: V
W and their derived ones).
, A,
Data (bidirectional)
Dynamic (reading only) System and phase variables
Static (writing only) All configuration parameters
Data for
Baud-rate 9600 bit/s
Displaying Up to 3 variables per page
3-phase system with neutral
Alarms Programmable, for the VL∑and
Reset Independent
mat 1 bit di start , 8 data bit,
no parity, 1 stop bit
Page 1:
Page 2: V L12, V L23, V L31
Page 3:
Page 4: An
Page 5: WL1, WL2, WL3
Page 6: PF L1, PF L2,
Page 7: var L1, var L2, var L3
Page 8: VA L1, VA L2, VA L3
Page 9: VA ∑, W ∑, var ∑
Page 10: VA dmd, W dmd,
Page 11: W dmd MAX
Page 12: VL-L ∑, PF ∑
Page 13: A MAX
An (neutral current).
Note: the alarm is only visual,
by means of LED on the front
of the instrument.
alarm (VL∑, An)
max: A, Wdmd
V L1, V L2, V L3
A L1, A L2, A L3
PF L3
Hz
Power Supply Specifications
Auxiliar
y power supply
AC
230V
-15 +10%, 50-60Hz
115VAC
-15 +10%, 50-60Hz
48VAC
-15 +10%, 50-60Hz
General Specifications
C (32 to 122
Operating 0 to +50
temperatur
Storage -10 to +60°C (14 to 140°F)
temperature
Installation category Cat. III (IEC 60664, EN60664)
Insulation (for 1 minute)
e
(RH < 90% non condensing at
40°C)
(RH < 90% non condensing at
40°C)
4000
between mesuring
inputs and power supply.
°
AC, 500VDC
V
2
°F)
24VAC
-15 +10%, 50-60Hz
Power consumption AC: 4.5 VA
Dielectric strength 4000 VAC (for 1 minute)
EMC
Emissions EN50084-1 (class A)
18 to 60VDC
DC: 4W
AC/DC
V
500
mesuring
4000VAC, 500VDC between
power supply and RS485.
esidential envir
r
commer
between
inputs and RS485.
onment,
ce and light industry
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WM12-DIN
General Specifications (cont.)
Immunity
Pulse voltage (1.2/50µs)
Safety standards IEC 60664, EN60664
Approvals CE, UL
Connections 5(6) A Screw-type
Max cable cr
Housing
Dimensions (WxHxD) 107.8 x 80 x 64.5 mm
Waveform of the signals that can be measured
Figure D
Sine wave, undistorted
Fundamental content 100%
Harmonic content 0%
A
= 1.1107 | A |
rms
oss sect. area 2.5 mm
EN 61000-6-2 (class A)
industrial envir
EN61000-4-5
onment.
2
Figure E
Sine wave, indented
Fundamental content 10...100%
Harmonic content 0...90%
Frequency spectrum: 3rd to 16th harmonic
Additional error: <1% FS
Material ABS
self-extinguishing: UL 94 V-0
Mounting DIN-rail
Protection degree Front: IP40
Connections: IP20
W
eight
Figure F
Sine wave, distorted
Fundamental content 70...90%
Harmonic content 10...30%
Frequency spectrum: 3rd to 16th harmonic
Additional error: <0.5% FS
ox. 400 g (pack. incl.)
Appr
Display pages
Display variables in 3-phase systems (in a 3-phase system with neutral)
No 1stvariable 2ndvariable 3rdvariable Note
1 V L1 V L2 V L3
2 V L12 V L23 V L31 Decimal point blinking on the right
of the display
3 A L1 A L2 A L3
4
5
6 PF L1 PF L2 PF L3
7 VAR L1 VAR L2 VAR L3 Decimal point blinking on the right
8 VA L1 VA L2 VA L3
9 VA system W system VAR system
10 VA dmd W dmd Hz dmd = demand (integration time
11 W dmd MAX Maximum sys power demand
12 V LL system AL.U PF system AL.U= is activated only if one of
13 A MAX
An
W L1
(system) (system) (system) selectable from 1 to 30 minutes)
AL.n
W L2
W L3
AL.n if neutral current alarm is
active
Decimal point blinking on the right
of the display if generated power
of the display if generated power
VLN is not within the set limits
max. current among the three phases
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WM12-DIN
Used calculation formulas
Phase variables
Instantaneous effective voltage
Instantaneous active power
Instantaneous power factor
Instantaneous effective current
Wiring diagrams
Fig. 1
Instantaneous apparent power
Instantaneous reactive power
System variables
Equivalent 3-phase voltage
3-phase r
eactive power
Fig. 2
3-phase active power
3-phase apparent power
3-phase power factor
Neutral current
A
A
An =
L1
A
+
+
L2
L3
Fig. 3
3CT and 3VT connectionCT connection
Fig. 4
ARON and VT connection 2-phase connection
Fig. 5
ARON connection
Fig. 6
1-phase connection
NOTE: the current inputs can be connected to the lines ONLY by means of current transformers. The direct connection is not allowed.
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WM12-DIN
Serial Port wiring diagram
RS485 serial connection Fig. 7
[1] [2] [3]
1-Last instrument
2-1...n Instrument
3-SIU-PC
4-wire connection
Front Panel Description
Dimensions and Panel Cut-out
1. Key-pad
To program the configuration parameters and the display of
the variables.
S
Key to enter programming and confirm selections;
▲
2
1
▲
Keys to:
- programme values;
- select functions;
- display measuring pages.
Display
2.
LED-type with alphanumeric indications to:
- display configuration parameters;
- display all the measured variables.
107,8mm
90mm
32,2mm
50,1mm
64,5mm
44mm
45mm
108,5mm
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