NOTE n.1
3P4W
3 phases 4 wires
Star
2P2W
2 phases 2 wires
Two-phases
1P2W
1 phases 2 wires
Single phase
3I
3 phases 2 wires
3 Current Inputs single phase o three phases
3P3W-B-3U
1 phases 3 wires
Balanced triangle
3P4W-B-3U
1 phases 4 wires
Balanced star
3P3W-B
1 phases 2 wires
Balanced triangle
3P4W-B
1 phases 2 wires
Balanced star
3P3W
2 phases 3 wires
Triangle
NOTE n.2
POWERS
Integration time of the average value (AVG) and peak value (MD) for
Power (from 1 to 60 minutes).
CURRENTS Integration time of the average value (AVG) and peak value (MD) for
Current (from 1 to 60 minutes).
NOTE n.3
NORMAL
Classic Alarm with reference to a fi xed threshold or to maximum and
minimum delay and applicable hysteresis. “AVG” parameter is not used.
UNBAL%
Considers also the 2 following registers of the selected one in “MEAS”.
“THRE” parameter becomes a % value. Alarm goes on when one of the
three register is diff erent from the percentage set on “THRE” comply with
the higher value of the three read register if “MAX” is set on “TYPE”, or
comply with the lower value of the three register if “MIN” is set on “TYPE”
With delay and applicable hysteresis.
UNBAL
Considers also the 2 following registers of the selected one in “MEAS”.
“THRE” parameter becomes a value. Alarm goes on when one of the
three register is diff erent from the percentage set on “THRE” comply with
the higher value of the three read register if “MAX” is set on “TYPE”, or
comply with the lower value of the three register if “MIN” is set on “TYPE”
With delay and applicable hysteresis.
3-OF-3
Considers also the 2 following registers of the selected one in “MEAS”.
It operates on a fi xed max or min threshold with delay and applicable
hysteresis. When all the three registers exceed the threshold the alarm
goes ON. “AVG” parameter is not used.
1-OF-3
Considers also the 2 following registers of the selected one in “MEAS”.
It operates on a fi xed max or min threshold with delay and applicable
hysteresis. If one of the three registers exceeds the threshold the alarm
goes ON. “AVG” parameter is not used.
NOTE n.4
MAX
Alarm setting in excess or in decrease compared with the predefi ned
conditions.
With the exception of “UNBAL and UNBAL%”.
MIN
NOTE n.5
MEAS
Indicates which register (measure) the alarm is related to.
See table N.1 Input Register.
THRE
Alarm threshold in absolute value, with the exception made for “UNBAL”
in which the value inserted becomes a percentage.
NOTE n.6
NORMAL
Alarm remains active during the duration of the event. It restores auto-
matically.
HOLD
Alarm remains active until the manual reset via Modbus.
NOTE n.7
ALARM 1
MODBUS alarm (Associated with output 1 if present)
ALARM 2
MODBUS alarm (Associated with output 2 if present)
ALARM 3
MODBUS alarm (Associated with output 3 if present)
ALARM 4
MODBUS alarm (Associated with output 4 if present)
NOTE n.8
LED-1
OFF
The instrument’s LED remains off
S0-1, 2, 3, 4
The instrument’s LED fl ashes according to the
selected pulse generator
NOTE n.9
EA
Power (Energy) Active Imported / Exported
ER L
Power (Energy) Reactive Inductive Imported / Exported
ER C
Power (Energy) Reactive Capacitive Imported / Exported
ES
Power (Energy) Apparent Imported / Exported
EA+
Power (Energy) Active Imported
ER L+
Power (Energy) Imported Inductive Reactive
ER C+
Power (Energy) Imported Reactive Capacitive
ES+
Power (Energy) Apparent Imported
EA-
Power (Energy) Active Exported
ER L-
Power (Energy) Exported Inductive Reactive
ER C-
Power (Energy) Capacitive Reactive
ES-
Power (Energy) Apparent Exported
NOTE n.10
YES
Referred to the primary of the current transformer (CT)
NO
Referred to the secondary of the current transformer (CT)
ALARM SETUP EXAMPLE
Alarm (latching) when the average active power (MEAS 344) exceeds the value of 100
kW, hysteresis of 5% and delay of 5 seconds; set the parameters as in the table:
ALARM 1
(
note n.7)
MODE (
note n.3)
NORMAL, UNBAL%, UNBAL,
3-OF-3, 1-OF-3
NORMAL
DIRECTION (
note
n.4)
MAX, MIN
MAX
DATA ADDRESS
(
note n.5)
Controlled measure. See table n.1 for register
selection
344
THRESHOLD (
note
n.5)
Threshold value
+100.0 K
HYSTERESIS
1...99 (%)
05
ON DELAY
1 sec ...99 minutes
05 SEC
OFF DELAY
1 sec ...99 minutes
01 SEC
OUT MODE (
note
n.6)
NORMAL, HOLD
NORMAL
INPUTS - OUTPUTS
INPUTS
OUTPUTS
10
C2 Common2 (negative)
19
C1 Common1 (negative)
11
I2 Input 2 (positive)
20
O1 Output 1 (positive)
12
C1 Common1 (negative)
21
C2 Common2 (negative)
13
I1 Input 1 (positive)
22
O2 Output 2 (positive)
INPUTS
OUTPUTS
Supply voltage (external):
from 10 to 30
Vdc
Maximum applicable voltage:
27 Vdc
Current consumption:
from 2 to 10mA Maximum switchable current:
27mA
Max. count frequency
10 or 100Hz
N.B. For gas meters a galvanic separation is
needed per ATEX standards
N.B. Transistor optocoupler digital outputs (NPN)
according to DIN 43864.
Common
230 V~
24V =
N L
- +
12
20
19
10 11
AUX IN/OUT
21
13
22
Reactive energy
Active energy
C1
C2
NO
C
NC
R
e
l
a
y
NO
C
NC
R
e
l
a
y
230 V~
24V =
N L
- +
12
20
19
10 11
AUX IN/OUT
21
O2
O1
13
22