2
Specifications are subject to change without notice
WM2-96DS0303
WM2-96
Pulse output (on request)
Number of outputs
1, independent
Static type
From 0.1 to 999.9 pro-
(according to DIN 43864)
grammable pulses for kWh,
KVArh, open collector (NPN
transistor)
VON 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,
4000 Vrms output to
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, VL-L,
energies,
Single phase variables:
PL1, 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,
4000 Vrms output to
measuring inputs
4000 Vrms output to
supply input
Output Specifications
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, VL-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, VL-N, A
Measurement method
TRMS measurement of a dis-
torted voltage/current wave
Coupling type: Direct
Crest factor:
≥ 3
Ranges (impedances)
250 V/433 V (
≥400kΩ)
5 AAC (
≤ 0.3 VA / ≤ 0.1Ω)
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.)
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