Electrex FEMTO 96 User manual

INSTALLATION GUIDE READINGS
READINGS DISPLAYED IN THE UPPER SCREEN AREA
(The parameters available vary according to instrument configuration)
Ea Er Es U U-f I P Q S PF
Ea Imp Er Ind
Imp
Es Imp L-N L-N
f
IPQSPF
Press to scroll readings
Ea Exp Er Cap
Imp
Es Exp L-L L-L
f
In P Avg
Imp
Q Avg
Imp
S Avg
Imp
Ea
Phase
Er Ind
Exp
THD
L-N
THD L-N
f
THD P Avg
Exp
Q Avg
Exp
S Avg
Exp
Er Cap
Exp
THD L-L THD L-L
f
I Max P MD
Imp
Q MD
Imp
S MD
Imp
Er Ind
Phase
Min L-N Min L-N I Avg P MD
Exp
Q MD
Exp
S MD
Exp
Min L-L Min L-L I MD
Max L-N Max L-N
Max L-L Max L-L
READINGS DISPLAYED IN THE LOWER SCREEN AREA
(The parameters available vary according to instrument configuration)
Press to change readings
Press for 2 seconds
Ea ∑+ Er L ∑+ Er C ∑+ Es ∑+
Ea ∑- Er L ∑- Er C ∑- Es ∑-
Ea P+ Er L P+ Er C P+ Es P+
Ea P- Er L P- Er C P- Es P-
CNT1 ∑
CNT1 P
TIME ∑TIME P
TEMP °C TEMP °F
LEGEND OF PARAMETERS AND SYMBOLS
L-N Phase Neutral UVoltage
L-L Phase Phase ICurrent
THD Total Harmonic Distortion In Neutral current
Avg Average (rolling) value PActive Power
MD Maximum Demand QReactive Power
Imp (+) Import value SApparent Power
Exp (-) Export value PF Power Factor
IND Inductive Ea Active Energy
CAP Capacitive Er Reactive Energy
Min Minimum values (10 cycles time base) Es Apparent Energy
Max Maximum values (10 cycles time base) f Frequency
TIME ∑Life Time (total) TEMP °C Temperature in °Celsius
TIME P Life Time (partial) TEMP °F Temperature in °Fahrenheit
CNT ∑Pulse count (total)
CNT P Pulse count (partial)
!
FEMTO 96
Keep pressed for 2
seconds to display:
- Type of instrument
- Firmware version
- Serial number
- RS485 address
MECHANICAL CHARACTERISTICS
Case Self-extinguishing plastic material class V0
Protection degree IP65 on front panel, IP20 terminals side
Size 96 x 96 x 72 mm
CURRENT INPUT
Direct Up to 300 Vrms phase-neutral
or 519 Vrms phase to phase
With external PT(VT) Primary: programmable (max. 400 kV)
Secondary: programmable (max. 300 V)
Overload: 900 Vrms phase to phase for 1 sec
Power supply 230/240Vac +/- 10% 50/60Hz
Self consumption < 3VA
MODELS
PFA6C11-02 FEMTO 96 RS485 230-240V
ENERGY ANALYSER
PFA6C11-12 FEMTO 96 RS485 230-240V 1DI 2DO
ENERGY ANALYSER
COPYRIGHT
Electrex is a trademark of Akse S.r.l. All rights reserved.
It is forbidden to duplicate, adapt, transcript this document withoutAkse written authorization,
except when regulated accordingly by the Copyright Laws.
WARRANTY
This product is covered by a warranty against material and manufacturing defects for a 24
months period from the manufacturing date.
The warranty does not cover the defects that are due to:
• Negligent and improper use
• Failures caused by atmospheric hazards
• Acts of vandalism
• Wear out of materials
• Firmware upgrades
Akse reserves the right, at its discretion, to repair or substitute the faulty products
The warranty is not applicable to the products that will result defective in consequence of a
negligent and improper use or an operating procedure not contemplated in this manual.
RETURN AND REPAIR FORMALITIES
Akse accepts the return of instruments for repair only when authorized in advance. The
transport costs are at customer charge.
RE-SHIPPING OF REPAIRED PRODUCT
The terms for re-shipment of repaired products are ex-works, i.e. the transport costs are
at customer charge.
Products returned as detective but found to be perfectly working by our laboratories, will
be charged a flat fee to account for checking and testing time irrespective of the warranty
terms.
SAFETY
This instrument was manufactured and tested in compliance with IEC 61010 class 2
standards for operating voltages up to 250 VAC rms phase to neutral.
In order to maintain this condition and to ensure safe operation, the user must comply with
the indications and markings contained in the following instructions:
• When the instrument is received, before starting its installation, check that it is
intact and no damage occurred during transport.
• Before mounting, ensure that the instrument operating voltages and the mains
voltage are compatible then proceed with the installation.
• The instrument power supply needs no earth connection.
• The instrument is not equipped with a power supply fuse; a suitable external
protection fuse must be foreseen by the contractor.
• Maintenance and/or repair must be carried out only by qualified, authorized
personnel
• If there is ever the suspicion that safe operation is no longer possible, the instrument
must be taken out of service and precautions taken againstits accidental use.
• Operation is no longer safe when:
1) There is clearly visible damage.
2) The instrument no longer functions.
3) After lengthy storage in unfavorable conditions.
4) After serious damage occurred during transport
The instruments must be installed in respect of all the local regulations.
OPERATOR SAFETY
Warning: Failure to observe the following instructions may lead to a serious danger of
death.
• During normal operation dangerous voltages can occur on instrument terminals and
on voltage and current transformers. Energized voltage and current transformers
may generate lethal voltages. Follow carefully the standard safety precautions while
carrying out any installation or service operation.
• The terminals of the instrument must not be accessible by the user after the installation.
The user should only be allowed to access the instrument front panel where the
display is located.
• Do not use the digital outputs for protection functions nor for power limitation functions.
The instrument is suitable only for secondary protection functions.
• The instrument must be protected by a breaking device capable of interrupting both
the power supply and the measurement terminals. It must be easily reachable by the
operator and well identified as instrument cut-off device.
• The instrument and its connections must be carefully protected against short-circuit.
Precautions: Failure to respect the following instructions may irreversibly damage to the
instrument.
• The instrument is equipped with PTC current limiting device but a suitable external
protection fuse should be foreseen by the contractor.
• The outputs and the options operate at low voltage level; they cannot be powered by
any unspecified external voltage.
• The application of currents not compatible with the current inputs levels will damage
to the instrument.
Further documentation may be downloaded from our web site www.electrex.it.
This document is owned by company AKSE that reserves all rights.
DECLARATION OF CONFORMITY
Akse hereby declares that its range of products complies with the following directives EMC
89/336/EEC 73/23CE 93/68 CE and complies with the following product’s standard
CEI EN 61326 – IEC 61326 CEI EN 61010 – IEC 1010.
The product has been tested in the typical wiring configuration and with peripherals
conforming to the EMC directive and the LV directive.
Subject to modification without notice. Edition 02-07-2008

DEVICE SETUP
OPERATING KEYS
Click Change selected field
value
Change selected field value Go to next field
Click
2 sec
Go to next window Back to initial entry field Exits setup
SETUP SEQUENCE
PAGE PARAMETERS VALUES AVAILABLE DEFAULT
PASSWORD REQUEST 0000 ... 9999 0000
RS485
RS485 Address 1 ... 247 27
Rate 2400, 4800, 9600, 19200, 38400 38400
Data Bit 7 or 8 8
Parity N = no parity, E =even parity, O = odd parity N
Stop Bit 1 or 2 2
RS-485
ADDR 027
COM 38400-8-N-2
NETWORK
Type (note n.1) 3PH-3W-2CT, 3PH-4W, 2PH-2W, 1PH-2W 3PH-4W
Export NO, YES NO
CT 10000/1 or 5 5/5
VT 400000/300 1/1
NETWORK
TYPE 3PH-4W
EXPORT NO
CT 00005/5
VT 000001/001
AVG-MD TIME (note n.2)
POWERS 1...60 (minutes) 15
CURRENTS 1...60 (minutes) 8
AVG-MD TIME
POWERS 15
CURRENTS 08
ALARM 1 / A (note n.11)
MODE (note n.3) Normal, 1-OF-3, 3-OF-3, DERIV, UNBAL NORMAL
TYPE (note n.4) MAX, MIN MIN
MEAS (note n.5) Controlled measure. See table n.1 for register
selection 200
THRE (note n.5) Threshold value 0
ALARM 1/A
MODE NORMAL
TYPE MIN
MEAS 200
THRE 000.00
ALARM 1 / B
HYST 1...100 (%) 1
DELAY 1...99 (seconds) 1
AVG (note n.6) 1...99 (seconds) 1
OUT (note n.7) Normal, Hold, Pulse-L, Pulse-S NORMAL
ALARM 1/B
HYST 01
DELAY 01
AVG 01
OUT NORMAL
ALARM 2 / A (note n.11)
MODE (note n.3) Normal, 1-OF-3, 3-OF-3, DERIV, UNBAL NORMAL
TYPE (note n.4) MAX, MIN MIN
MEAS (note n.5) Controlled measure. See table n.1 for register
selection 200
THRE (note n.5) Threshold value 0
ALARM 2 / B
HYST 1...100 (%) 1
DELAY 1...99 (seconds) 1
AVG (note n.6) 1...99 (seconds) 1
OUT (note n.7) Normal, Hold, Pulse-L, Pulse-S NORMAL
ALARM 3 / A (note n.11)
MODE (note n.3) Normal, 1-OF-3, 3-OF-3, DERIV, UNBAL NORMAL
TYPE (note n.4) MAX, MIN MIN
MEAS (note n.5) Controlled measure. See table n.1 for register
selection 200
THRE (note n.5) Threshold value 0
ALARM 3 / B
HYST 1...100 (%) 1
DELAY 1...99 (seconds) 1
AVG (note n.6) 1...99 (seconds) 1
OUT (note n.7) Normal, Hold, Pulse-L, Pulse-S NORMAL
ALARM 4 / A (note n.11)
MODE (note n.3) Normal, 1-OF-3, 3-OF-3, DERIV, UNBAL NORMAL
TYPE (note n.4) MAX, MIN MIN
MEAS (note n.5) Controlled measure. See table n.1 for register
selection 200
THRE (note n.5) Threshold value 0
ALARM 4 / B
HYST 1...100 (%) 1
DELAY 1...99 (seconds) 1
AVG (note n.6) 1...99 (seconds) 1
OUT (note n.7) Normal, Hold, Pulse-L, Pulse-S NORMAL
ENTERS INTO SET UP MODE
(Push together for 2 seconds)
TABLE n.1 (ModBus Registers for alarm configuration)
REGISTER DESCRIPTION SYMBOL UNITS
200 Phase to Neutral Voltage, THD THD U1N [%]
202 Phase to Neutral Voltage, THD THD U2N [%]
204 Phase to Neutral Voltage, THD THD U3N [%]
206 Phase to Phase Voltage, THD THD U12 [%]
208 Phase to Phase Voltage, THD THD U23 [%]
210 Phase to Phase Voltage, THD THD U31 [%]
212 Phase Current, THD THD I1 [%]
214 Phase Current, THD THD I2 [%]
216 Phase Current, THD THD I3 [%]
218 Frequency of U1N f [Hz]
220 Phase to Neutral Voltage, RMS Amplitude U1N [V]
222 Phase to Neutral Voltage, RMS Amplitude U2N [V]
224 Phase to Neutral Voltage, RMS Amplitude U3N [V]
226 Phase to Phase Voltage, RMS Amplitude U12 [V]
228 Phase to Phase Voltage, RMS Amplitude U23 [V]
230 Phase to Phase Voltage, RMS Amplitude U31 [V]
232 Phase Current, RMS Amplitude I1 [A]
234 Phase Current, RMS Amplitude I2 [A]
236 Phase Current, RMS Amplitude I3 [A]
238 Neutral Current, RMS Amplitude IN [A]
240 Phase Active Power ( Imp/ Exp) P1 [W]
242 Phase Active Power ( Imp/ Exp) P2 [W]
244 Phase Active Power ( Imp/ Exp) P3 [W]
246 Phase Reactive Power ( Imp/ Exp) Q1 [var]
248 Phase Reactive Power ( Imp/ Exp) Q2 [var]
250 Phase Reactive Power ( Imp/ Exp) Q3 [var]
252 Phase Apparent Power S1 [VA]
254 Phase Apparent Power S2 [VA]
256 Phase Apparent Power S3 [VA]
258 Phase Power Factor ( Imp/ Exp) PF1 [-]
260 Phase Power Factor ( Imp/ Exp) PF2 [-]
262 Phase Power Factor ( Imp/ Exp) PF3 [-]
264 Phase to Neutral Voltage, Mean THD THD Ul [%]
266 Phase to Phase Voltage, Mean THD THD UD [%]
268 Phase Current, Mean THD THD I [%]
270 Phase to Neutral Voltage, Mean RMS Amplitude Ul [V]
272 Phase to Phase Voltage, Mean RMS Amplitude UD [V]
274 Three phase current, RMS Amplitude I [A]
276 Total active power ( Imp/ Exp) PS [W]
278 Total reactive power ( Imp/ Exp) QS [var]
280 Total apparent power SS [VA]
282 Total power factor ( Imp/ Exp) PFS [-]
332 Phase Current, RMS Amplitude, AVG I1 AVG [A]
334 Phase Current, RMS Amplitude, AVG I2 AVG [A]
336 Phase Current, RMS Amplitude, AVG I3 AVG [A]
344 Total imported active power, AVG P Imp AVG [W]
346 Total imported inductive power, AVG Qind Imp AVG [var]
348 Total imported capacitive power, AVG Qcap Imp AVG [var]
350 Total imported apparent power, AVG S Imp AVG [VA]
352 Total exported active power, AVG P Exp AVG [W]
354 Total exported inductive power, AVG Qind Exp AVG [var]
356 Total exported capacitive power, AVG Qcap Exp AVG [var]
358 Total exported apparent power, AVG S Exp AVG [VA]
376 External Pulse Counter, With Weight, Total counter
or Tariff T1
CNT1 S
384 External Pulse Counter, With Weight, Partial
Counter or Tariff T2
CNT1 P
EXIT SETUP
(push for 2 seconds)
Subject to modification without notice. Edition 02-07-2008
DIGITAL OUT 1 (note n.8)
MODE PULSE, ALARM, REMOTE PULSE
POLARITY NO, NC NO
DIGITAL OUT 1
MODE PULSE
POLATITY NO
PULSE OUT 1
MEAS (note n.9) P-IMP, QL-IMP, QC-IMP, S-IMP, P-EXP,
QL-EXP, QC-EXP, S-EXP P-IMP
PRIMARY (note n.10) YES, NO YES
WEIGHT 1...100000000 (Wh/100) 100000
WIDTH 50ms...1S 500
PULSE OUT 1
MEAS P-IMP
PRIMARY YES
WEIGHT 100.00k
WIDTH 0500
DIGITAL OUT 2 (note n.8)
MODE PULSE, ALARM, REMOTE PULSE
POLARITY NO, NC NO
PULSE OUT 2
MEAS (note n.9) P-IMP, QL-IMP, QC-IMP, S-IMP, P-EXP,
QL-EXP, QC-EXP, S-EXP QL-IMP
PRIMARY (note n.10) YES, NO YES
WEIGHT 1...100000000 (Wh/100) 100000
WIDTH 50ms...1S 500
CLEAR TOTAL COUNTERS NO, YES NO
CLEAR PARTIAL COUNTERS NO, YES NO
CLEAR MIN-MAX NO, YES NO
CLEAR MAX DEMAND NO, YES NO
ENTER NEW PASSWORD 0000 ... 9999 0000

INPUT & OUTPUTS CONNECTION EXAMPLE
DIGITAL INPUTS AND OUTPUTS CONNECTION
(only for the version PFA6C11-12)
9111078
AUX
IN/OUT
S1 S2 S1 S2 S1 S2
I1 I2 I3
VOLTAGE INPUTS POWER
SUPPLY RS-485
CURRENT INPUTS
1716U1 U2 U3 N AB
T
NO
C
NC
NO
C
NC
Max
27 Vdc
27 mA
(-) (+)
230 Vac
FROM:
- TRANSDUCER WITH
CLEAN CONTACT
- GME
- SWITCH STATUS
- ALARM STATUS
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
9111078
AUX
IN/OUT
S1 S2 S1 S2 S1 S2
I1 I2 I3
VOLTAGE INPUTS POWER
SUPPLY RS-485
CURRENT INPUTS
1716U1 U2 U3 N AB
T
Es.
Input M8 Supervisor
12C C34
(-)
(+)
(-) (+) (+)
Es. PLC
Out PLC
Comune
87
Com
(-)
91110
DO1
(+)
DO2
(+)
DI
(+)
DI
(-)
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 (da 1 a 60 minuti)
CURRENTS Integration time of the average value (AVG) and peak value (MD) for
current (da 1 a 60 minuti)
Note n.3
Normal Classic Alarm with reference to a fixed 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 fixed 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 fixed 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 1” 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
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) seguire la seguente procedura:
CFG ERROR
RESTORE
FACTORY SETTINGS
YES
Once this procedure is done the meter is configured with its factory default settings.
Stored data will remain after the restore operation.
Subject to modification without notice. Edition 02-07-2008

4W Star (4 wire) 3PH-4W SINGLE PHASE 1PH-2W
BI-PHASE 2PH-2W3W Delta (3 wire) 3PH-3W-2CT
The instrument is fitted with a separate power supply. The power supply terminals are
numbered (16) and (17). Use cables with max cross-section of 2,5 mm2if stranded, 4
mm2if rigid.
POWER SUPPLY AND SERIAL LINE CONNECTION
akse srl Via Aldo Moro, 39 42124 Reggio Emilia Italy
Tel. [phone] Fax [phone] [email protected] www.akse.it
P.I. 01544980350 R.E.A. 194296 Cap. Soc. Euro 85.800,00 i.v.
9111078
AUX
IN/OUT
S1 S2 S1 S2 S1 S2
I1 I2 I3
VOLTAGE INPUTS POWER
SUPPLY RS-485
CURRENT INPUTS
1716U1 U2 U3 N AB
T
L1
L2
L3
N
S1 S2
P1 P2
S1 S2
P1 P2
S1 S2
P1 P2
Voltage connection: Use cables with max cross-section of 2,5 mm2if stranded 4 mm2if rigid and connect them to the clamps marked VOLTAGE INPUT on the instrument according to
the applicable diagrams that follow.
Current connection
It is necessary to use external CTs with a primary rating adequate to the load to be metered and with a 5A or 1A secondary rating. The number of CTs to be used (1 or 3) depends upon
the type of network. Connect the CT output(s) to the terminals marked I1, I2, I3 (CURRENT INPUT) of the instrument according to the applicable diagrams that follow. Use cables with
cross-section adequate to the VA rating of the CT and to the distance to be covered. The max cross-section for the terminals is 2,5 mm2if stranded and 4 mm2if rigid.
N.B. The CT secondary must always be in short circuit when not connected to the instrument in order to avoid damages and risks for the operator.
Warning: The phase relationship of voltage and current connections, the P1-P2 direction and the S1-S2 connection of the CT(s) must be correct. Earth only CT on L1 as shown in
diagram (CT’s are internally linked). Disregard of this warning or of wiring diagram leads to major measurement errors.
VOLTAGE AND ELECTRIC CURRENT CONNECTION
9111078
AUX
IN/OUT
S1 S2 S1 S2 S1 S2
I1 I2 I3
VOLTAGE INPUTS POWER
SUPPLY RS-485
CURRENT INPUTS
1716U1 U2 U3 N AB
T
L1
L2
L3
S1 S2
P1 P2
S1 S2
P1 P2
9111078
AUX
IN/OUT
S1 S2 S1 S2 S1 S2
I1 I2 I3
VOLTAGE INPUTS POWER
SUPPLY RS-485
CURRENT INPUTS
1716U1 U2 U3 N AB
T
LN FUSE
(50mAT)
230 ÷ 240 V ±10%
9111078
AUX
IN/OUT
S1 S2 S1 S2 S1 S2
I1 I2 I3
VOLTAGE INPUTS POWER
SUPPLY RS-485
CURRENT INPUTS
1716U1 U2 U3 N AB
T
L1
N
S1 S2
P1 P2
9111078
AUX
IN/OUT
S1 S2 S1 S2 S1 S2
I1 I2 I3
VOLTAGE INPUTS POWER
SUPPLY RS-485
CURRENT INPUTS
1716U1 U2 U3 N AB
T
L1
L2
S1 S2
P1 P2
Subject to modification without notice.
Edition 02-07-2008
Made in Italy
Pensato, progettato e prodotto in Italia
Engineered and manufactured in Italy