INPUT & OUTPUTS CONNECTION EXAMPLE
DIGITAL INPUTS AND OUTPUTS CONNECTION
(only for the version PFA6C11-12)
S1 S2 S1 S2 S1 S2 A B
T
10 11 12
17
18
19
20
U1 U2 U3
N
I1
I2
I3
RS-485
AUX
AUX
VOLTAGE INPUT POWER
NO
C
NC
NO
C
NC
Max
27 Vdc
27 mA
(-)
(+)
230 Vac
FROM:
- TRANSDUCER WITH CONTACT CLEAN
- GME
- STATE ON-OFF
- STATE ALARMS
R
e
l
a
y
R
e
l
a
y
Power
Supply
Digital Inputs
Supply voltage (external):
from 10 to 30
Vdc
Current consumption:
from 2 to 10mA
Max. count frequency
10 or 100Hz
N.B. For gas meters a galvanic separation is
needed per ATEX standards
Digital outputs (optocoupled NPN
transistor type for DIN 43864)
Maximum applicable voltage:
27 Vdc
Maximum switchable current:
27 mA
S1 S2 S1 S2 S1 S2 A B
T
10 11 12
17
18
19
20
U1 U2 U3
N
I1
I2
I3
RS-485
AUX
AUX
VOLTAGE INPUT POWER
Es.
Input M8 Supervisor
1 2 C
C
3 4
(+)
(-)
(-) (+) (+)
Es. PLC
Out PLC
Common
Note n.1
3PH-3W-2CT 2 phases 3 wires, triangle
3PH-4W
3 phases 4 wires, Star
2PH-2W
2 phases 2 wires, biphase
1PH-2W
1 phase 2 wires, monophase
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.
1-OF-3
Consider also the 2 following registers of the selected one in “MEAS” .
Works on a fi xed max or min threshold with delay and applicable hysteresis.
If one of the three register exceed the threshold the alarm goes on. “AVG”
parameter is not used.
3-OF-3
Consider also the 2 following registers of the selected one in “MEAS”.
Works on a fi xed max or min threshold with delay and applicable hysteresis.
When all the three register exceed the threshold the alarm goes on. “AVG”
parameter is not used.
DERIV
“THRE” parameter becomes a % value, “AVG” parameter is used. The
instant value applied to the alarm on “MEAS” is compared with its value
mediated obtained on the basis of the time set on “AVG”. When the
instantaneous value combined alarm differs in more (setting “Max”) or less
(setting “MIN”) from the average value (“ AVG “) of the percentage set on
“THRE” the alarm goes on. With delay and applicable hysteresis.
UNBAL
Consider 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 different 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.
Note n.4
MAX
Alarm setting in excess compared with the established conditions.
With the exception of “UNBAL”.
MIN
Alarm setting in decrease compared with the established conditions.
With the exception of “UNBAL”
Note n.5
MEAS
indicates which register (and thus measure) the alarm is related.
See table n.1 input register.
THRE
Alarm threshold in absolute value, with the exception made for “DERIV”
and “UNBAL” in which the value inserted becomes a percentage.
Note n.6
AVG
Parameter to be used only in “DERIV” mode. Is the duration of the refe-
rence (in seconds) used to create a reference value for the istantaneous
readings.
Note n.7
NORMAL
Physical output of the alarm excited during the duration of the alarm. It
restores automatically
HOLD
Output remains excited until manual reset made via Modbus
PULSE-L
Output generate a 500ms impulse when the alarm goes on.
PULSE-S
Output generate a 100ms impulse when the alarm goes on.
Note n.8
PULSE
Enables exit function as impulsive
ALARM
Enables exit function as alarm
REMOTE
Enables function output via protocol Modbus
NO
Normally open
NC
Normally closed
Note n.9
P-IMP
Imported Active Power (Energy)
QL-IMP
Imported Reactive Inductive Power (Energy)
QC-IMP
Imported Reactive Capacitive Power (Energy)
S-IMP
Imported Apparent Power (Energy)
P-EXP
Exported Active Power (Energy)
QL-EXP
Exported Reactive Inductive Power (Energy)
QC-EXP
Exported Reactive Capacitive Power (Energy)
S-EXP
Exported Apparent Power (Energy)
Note n.10
YES
Referred to CT primary
NO
Referred to CT secondary
Note n.11
ALLARME 1
Alarm related to the physical output: DIGITAL OUT 1 (DO1, terminal 8)
ALLARME 2
Alarm related to the physical output: DIGITAL OUT 2 (DO2, terminal 9)
ALLARME 3
Only MODBUS alarm
ALLARME 4
Only MODBUS alarm
ALARM SET UP EXAMPLE
To ensure that the exit “DIGITAL OUT 1” remain excited for the alarm duration (latching)
when average active power (MEAS 344) exceeds the value of 100 kW, hysteresis, 5%
and latency of 5 seconds set the parameters such as table:
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 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
To ensure that the exit “DIGITAL OUT 2” remain excited for the alarm duration (latching)
when average active power (MEAS 344) goes down the value of 90 kW, hysteresis, 5%
and latency of 5 seconds set the parameters such as table:
ALARM 2 / A
MODE (
note n.2)
Normal, 1-OF-3, 3-OF-3, DERIV, UNBAL
NORMAL
TYPE (
note n.3)
MAX, MIN
MIN
MEAS (
note n.4)
Controlled measure. See table n.1 for register
selection
344
THRE (
note n.4)
Threshold value
90000
ALARM 2 / 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 2
MODE
PULSE, ALARM, REMOTE
ALARM
POLARITY
NO, NC
NO
C
10
1
11
2
12
AUX
IN/OUT
!
Common
12
11
10
DO2
DO1
DI (+)
20
19
DI (-)
+
19
-
20
AUX
IN/OUT
!
MESSAGE “CFG ERROR”
During the set up operation a “CFG ERROR” message could appear. This means
that some wrong parameters are typed. To restore the factory default settings use the
following procedure (RESTORE FACTORY SETTING):
CFG ERROR
RESTORE
FACTORY SETTINGS
YES
Once this procedure is done the meter is confi gured with its factory default settings.
Stored data will remain after the restore operation.
