ALARM SETTING EXAMPLES
NOTE n.2
POWERS
Integration time of the average value (AVG) and max. value (MD) for power (from 1
to 60 minutes)
CURRENTS
Integration time of the average value (AVG) and max. value (MD) for power (from 1
to 60 minutes)
NOTE n.3
NORMAL
Classic alarm with reference to a fi xed or max / min threshold, with applicable
hysteresis and delay. The “ AVG” parameter is not used.
DERIV
The “THRE” parameter becomes a percentage value.
The instantaneous value applied to the alarm on “MEAS“ will be compared with its
averaged value obtained depending on the time set on “AVG”.
When the instantaneous value combined to the alarm differs in “more then“ (if set
“MAX”) or in “less then“ (if set “MIN”) compared to the average value (“AVG”) of the
percentage set on “THRE”, the alarm triggers. With applicable hysteresis and delay.
The “AVG” parameter is used.
NOTE n.4
MAX
Alarm confi guration in “excess” according to the conditions set.
MIN
Alarm confi guration in “excess” according to the conditions set.
NOTE n.5
MEAS
Indicates on which register (and on which measure) the alarm is reported.
See table n.1 (Input Register).
THRE
Alarm threshold in absolute value, except the “DERIV” value where the value inserted
becomes a percentage.
NOTE n.6
AVG
Parameter to be used in the sole “DERIV” mode. Floating window amplitude ( in se-
cods) used for creating a reference value to which compare the instantaneous value.
NOTE n.7
NORMAL
The output remains exited during all the alarm, after all it falls.
HOLD
The output remains exited untill the manual reset made through Modbus
PULSE-L
The output generates a 500ms pulse on the alarm triggering.
PULSE-S
The output generates a 100ms pulse on the alarm triggering.
NOTE n.8
PULSE
Enables output function as impulsive
ALARM
Enables output function as alarm
REMOTE
Enables output function through Modbus Protocol
NO
Normally open
NC
Normally closed
NOTE n.9
P-IMP
Imported Active Power (Energy)
P-EXP
Exported Active Power (Energy)
NOTE n.10
YES
Refered to the primary of the CT
NO
Refered to the secondary of the CT
NOTE n.11
ALARM 1
Alarm associated to the physic output DIGITAL OUT 1 (DO1, terminal 8)
ALARM 2
Alarm associated to the physic output DIGITAL OUT 2 (DO2, terminal 9)
ALARM 3
MODBUS only alarm
ALARM 4
MODBUS only alarm
In order that the output “DIGITAL OUT 1” gets excited and remains such during all the
alarm (latching): when the Average Active Power (MEAS 344) exceeds the value of 100
kW, hysteresis 5% and delay of 5 seconds, set the parameters as in the table below:
ALARM 1 / A
MODE (
note n.2)
Normal, 1-OF-3, 3-OF-3, DERIV, UNBAL
NORMAL
TYPE (
note n.3)
MAX, MIN
MAX
MEAS (
note n.4)
Controlled measure. See table n.1 for the
register selection
344
THRE (
note n.4)
Threshold value
100000
ALARM 1 / B
HYST
1...100 (%)
5
DELAY
1...99 (seconds)
5
AVG (
note n.5)
1...99 (seconds)
1
OUT (
note n.6)
Normal, Hold, Pulse-L, Pulse-S
NORMAL
DIGITAL OUT 1
MODE
PULSE, ALARM, REMOTE
ALARM
POLARITY
NO, NC
NO
In order that the output “DIGITAL OUT 1” gets excited and remains such during all the
alarm (latching): when the Average Active Power (MEAS 344) falls below the value of 90
kW, hysteresis 5% and delay of 5 seconds, set the parameters as in the table below:
ALARM 2 / A
MODE (
nota n.2)
Normal, 1-OF-3, 3-OF-3, DERIV, UNBAL
NORMAL
TYPE (
nota n.3)
MAX, MIN
MIN
MEAS (
nota n.4)
Controlled measure. See table n.1 for the
register selection
344
THRE (
nota n.4)
Threshold value
90000
ALARM 2 / B
HYST
1...100 (%)
5
DELAY
1...99 (seconds)
5
AVG (
nota n.5)
1...99 (seconds)
1
OUT (
nota n.6)
Normal, Hold, Pulse-L, Pulse-S
NORMAL
DIGITAL OUT 2
MODE
PULSE, ALARM, REMOTE
ALARM
POLARITY
NO, NC
NO
Subject to modifi cation without notice. Edition 06-10-2010
