Specifications are subject to change without notice
WM22-DINDS1003
3
2000 VRMS between output
and power supply input
RS422/RS485 (on request)
AR2950 module
Type
Multidrop
bidirectional (static and
and dynamic variables)
Connections
2 or 4 wires, max. distance
1200m, termination directly
on the module
Addresses
255, selectable by key-pad
Protocol
MODBUS/JBUS
Data (bidirectional)
Dynamic (reading only)
Phase and system variables:
see table “Display pages”
Static (writing only )
All the programming data,
reset of energy, activation of
static output.
Stored energy (EEPROM)
max. 19.999.999 kWh/kvarh
Data format
1 start bit, 8 data bit,
no parity, 1 stop bit
Baud-rate
9600 bit/s
Insulation
By means of optocouplers,
2000 VRMS output
to measuring inputs
2000 VRMS output to
supply input
Digital outputs (on request)
AO2900 module
To be used as alarm, energy
retransmission, or remote
static outputs.
Three working modes are
selectable:
• two pulse outputs
(kWh and kvarh);
• one alarm output and
one pulse output
(kWh or kvarh)
• one output remotely con-
trolled by means of the
serial port and one pulse
output (kWh or kvarh)
Pulse outputs
Number of outputs
2
Number of pulses
From 0.01 to 100 pulses
programmable according
to the selected CT and VT
ratios
Output type
Open collector (transistor NPN)
VON 1.2 VDC / max. 100 mA
VOFF 30 VDC max.
Pulse duration
220 ms (ON),
≥ 220 ms (OFF)
According to DIN43864
Insulation
By means of optocouplers,
2000 VRMS outputs to
measuring inputs,
2000 VRMS output to
supply input.
Insulation between the two
outputs: functional
Alarm output
Number of outputs
1
Alarm type
Up alarm, down alarm
phase asymmetry, phase
loss.
Setpoint adjustment
0 to 100% of the electrical
scale
Hysteresis
0 to 100% of the electrical
scale
On-time delay
0 to 255 seconds
Response time
system variables
V, W, VA, var, PF (cos
ϕ)
FFT off, filter off
700ms
FFT on, filter on
1.2s
variables
THD-V, THD-A
Filter off
3s
Output type
Open collector (transistor NPN)
VON 1.2 VDC / max. 100 mA
VOFF 30 VDC max.
Insulation
By means of optocouplers,
2000 VRMS output to
measuring input,
2000 VRMS output to
supply input.
Insulation between the two
outputs: functional
AO2910 module
Relay + open collector
output. Working mode like
AO2900.
Pulse output
One static output+one relay
output, other characteristics
like AO2900.
Alarm output
Only relay output, other
characteristics like AO2900.
Output type
Static type like module
AO2900;
Relay type: SPDT,
AC1, AC15: 1AAC @250VAC
Insulation
By means of optocouplers,
2000 VRMS outputs to
measuring inputs,
2000 VRMS output to
supply input.
Insulation between the two
outputs: 2000 VRMS
Interface module specifications (cont.)
WM22-DIN
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