Electrex FEMTO D4 DC User manual

READINGS
READINGS DISPLAYED IN THE UPPER AREA OF THE DISPLAY
(The parameters available may change according to instrument configuration)
Ea U I P
Ea Imp U I P
Press to scroll read-
ings
Ea Exp Min U I Max P Avg Imp
Max U I Avg P Avg Exp
I MD P MD Imp
P MD Exp
READINGS DISPLAYED IN THE LOWER AREA OF THE DISPLAY
(The parameters available may change according to instrument configuration)
Press to change readings
Press for 2 seconds
Ea ∑+
Ea ∑-
Ea P+
Ea P-
CNT1 ∑
CNT1 P
TIME ∑TIME P
TEMP °C TEMP °F
LEGEND OF PARAMETERS AND SYMBOLS
Avg Average (rolling) value UVoltage
MD Maximum Demand ICurrent
Imp (+) Import value PActive Power
Exp (-) Export value Ea Active Energy
Min Minimum values (10 cycles time base)
Max Maximum values (10 cycles time base)
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)
Push for 2 seconds to
display:
- Type of instrument
- Firmware version
- Serial number
- RS485 address
MECHANICAL CHARACTERISTICS
Case self extingush plastic class V0
Protection degree IP40 (front)
Size 70 x 90 x 58 mm (4 DIN modules)
VOLTAGE INPUT
Direct up to 300 V
max 360 V
Power supply 230/240Vac +/- 10% 50/60Hz
Self consumption < 3VA
MODEL
PFA6471-12 FEMTO D4 DC RS485 230-240V 1DI 2DO
ENERGY ANALYZER
INSTALLATION GUIDE
!
FEMTO D4 DC
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 61010-1 CAT III-
300V class 2 standards for exercise voltages up to 300 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 the 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 61010.
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 20-05-2010

DEVICE SETUP
SETUP LIST
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
Export NO, YES NO
I FS 1 ... 10000 00010
SHUNT 60 o 100 60
VR 400000/999 1/1
NETWORK
EXPORT
I FS
SHUNT
VR
NO
00010
60
000900/300
AVG-MD TIME (note n.1)
POWERS 1...60 (minutes) 15
CURRENTS 1...60 (minutes) 8
AVG-MD TIME
POWERS 15
CURRENTS 08
ALARM 1 / A (note n.10)
MODE (note n.2) NORMAL, DERIV 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 0
ALARM 1/A
MODE NORMAL
TYPE MAX
MEAS 344
THRE 000.00
ALARM 1 / B
HYST 1...100 (%) 1
DELAY 1...99 (seconds) 1
AVG (note n.5) 1...99 (seconds) 1
OUT (note n.6) Normal, Hold, Pulse-L, Pulse-S NORMAL
ALARM 1/B
HYST 01
DELAY 01
AVG 01
OUT NORMAL
ALARM 2 / A (note n.10)
MODE (note n.2) NORMAL, DERIV 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 0
ALARM 2 / B
HYST 1...100 (%) 1
DELAY 1...99 (seconds) 1
AVG (note n.5) 1...99 (seconds) 1
OUT (note n.6) Normal, Hold, Pulse-L, Pulse-S NORMAL
ALARM 3 / A (note n.10)
MODE (note n.2) NORMAL, DERIV 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 0
ALARM 3 / B
HYST 1...100 (%) 1
DELAY 1...99 (seconds) 1
AVG (note n.5) 1...99 (seconds) 1
OUT (note n.6) Normal, Hold, Pulse-L, Pulse-S NORMAL
ALARM 4 / A (note n.10)
MODE (note n.2) NORMAL, DERIV 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 0
ALARM 4 / B
HYST 1...100 (%) 1
DELAY 1...99 (seconds) 1
AVG (note n.5) 1...99 (seconds) 1
OUT (note n.6) Normal, Hold, Pulse-L, Pulse-S NORMAL
EXIT SETUP
(push for 2 seconds)
DIGITAL OUT 1 (note n.7)
MODE PULSE, ALARM, REMOTE PULSE
POLARITY NO, NC NO
DIGITAL OUT 1
MODE PULSE
POLATITY NO
PULSE OUT 1
MEAS (note n.8) P-IMP, P-EXP P-IMP
PRIMARY (note n.9) 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.7)
MODE PULSE, ALARM, REMOTE PULSE
POLARITY NO, NC NO
PULSE OUT 2
MEAS (note n.8) P-IMP, P-EXP P-EXP
PRIMARY (note n.9) YES, NO YES
WEIGHT 1...100000000 (Wh/100) 100000
WIDTH 50ms...1S 500
DISPLAY
CONTRAST 20 - 45 36
CLEAR TOTAL COUNTERS NO, YES NO
CLEAR PARTIAL COUNTERS NO, YES NO
CLEAR MIN-MAX NO, YES NO
CLEAR MAX DEMAND NO, YES NO
RESTORE FACTORY SETTINGS NO, YES NO
ENTER NEW PASSWORD 0000 ... 9999 0000
TABLE n.1 (ModBus Registers for alarm configuration)
REGISTER DESCRIPTION SYMBOL UNITS
220 Voltage Amplitude U [V]
232 Current Amplitude I [A]
240 Active Power ( Imp/ Exp) P [W]
332 Current AVG I AVG [A]
344 Total imported active power, AVG P Imp AVG [W]
352 Total exported active power, AVG P Exp AVG [W]
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
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
ENTERS INTO SET UP MODE
(Push together for 2 seconds)
Subject to modification without notice. Edition 20-05-2010

INPUT & OUTPUTS CONNECTION EXAMPLE
U
30.0
V
Ea Σ+
319.62
kWh
+-3456AB
T
10 11 12
17 18 19 20+1415-
RS-485 AUX
AUXVOLTAGE INPUT POWER
CURRENT INPUT
NO
C
NC
NO
C
NC
Max
27 Vdc
27 mA
(-) (+)
230 Vac
DA:
- TRASDUTTORE CON
CONTATTO PULITO
- GME
- STATO INTERRUTTORE
- STATO ALLARMI
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
U
30.0
V
Ea Σ+
319.62
kWh
+ - 3456AB
T
10 11 12
17 18 19 20+1415-
RS-485 AUX
AUXVOLTAGE INPUT POWER
CURRENT INPUT
Es.
Input M8 Supervisor
12C C34
(-)(+)
(-) (+) (+)
Es. PLC
Out PLC
Comune
Note n.1
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.2
NORMALE Classic Alarm with reference to a fixed threshold or to maximum and
minimum delay and applicable hysteresis. “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.
Note n.3
MAX Alarm setting in excess compared with the established conditions.
MIN Alarm setting in decrease compared with the established conditions.
Note n.4
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”
in which the value inserted becomes a percentage.
Note n.5
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.6
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.7
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.8
P-IMP Imported Active Power (Energy)
P-EXP Exported Active Power (Energy)
Note n.9
YES Referred to SHUNT primary
NO Referred to SHUNT secondary
Note n.10
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.1) NORMAL, DERIV NORMAL
TYPE (note n.2) MAX, MIN MAX
MEAS (note n.3) Controlled measure. See table n.1 for register
selection 344
THRE (note n.3) Threshold value 100000
ALARM 1 / B
HYST 1...100 (%) 5
DELAY 1...99 (seconds) 5
AVG (note n.4) 1...99 (seconds) 1
OUT (note n.5) 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.1) NORMAL, DERIV NORMAL
TYPE (note n.2) MAX, MIN MIN
MEAS (note n.3) Controlled measure. See table n.1 for register
selection 344
THRE (note n.3) Threshold value 90000
ALARM 2 / B
HYST 1...100 (%) 5
DELAY 1...99 (seconds) 5
AVG (note n.4) 1...99 (seconds) 1
OUT (note n.5) 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
!
DIGITAL INPUTS AND OUTPUTS CONNECTION
(only for the version PFA6471-12)
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 20-05-2010

SHUNT CONNECTED BEFORE SHUNT CONNECTED AFTER
The instrument is fitted with a separate power supply. The power supply terminals are
numbered (17) and (18). 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.
Voltage connection:
Use cables with max cross-section of 2,5 mm2if stranded 4 mm2if rigid and connect them to the terminals marked VOLTAGE INPUT on the instrument according to the applicable
diagrams that follow.
Connessioni amperometriche
Use SHUNT with adequate primary and 60 o 100 mV as secondary rate. Connect the SHUNT to the terminals marked I1 (S1 e S2) (current input) according to the applicable diagrams
that follow.
WIRING FOR VOLTAGE AND CURRENT
U
30.0
V
Ea Σ+
319.62
kWh
+ - 3456AB
T
10 11 12
17 18 19 20+1415-
RS-485 AUX
AUXVOLTAGE INPUT POWER
CURRENT INPUT
LN
FUSE
(50mA T)
230 ÷ 240 V ±10%
Serial RS485 port
AB
T
U
30.0
V
Ea Σ+
319.62
kWh
+-3456AB
T
10 11 12
17 18 19 20+1415-
RS-485 AUX
AUXVOLTAGE INPUT POWER
CURRENT INPUT
+
-SHUNT
U
30.0
V
Ea Σ+
319.62
kWh
+ - 3456AB
T
10 11 12
17 18 19 20+1415-
RS-485 AUX
AUXVOLTAGE INPUT POWER
CURRENT INPUT
+
-SHUNT
Subject to modification without notice.
Edition 20-05-2010
Made in Italy
Pensato, progettato e prodotto in Italia
Engineered and manufactured in Italy