F&F LE-01MW User manual

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LE-01MW
Electric energy meter,
1-phase,
2-wire, 4-tariff
MID Directive 2014/32/EU
Certificate 0120/SGS0305
The LE-01MW is an electronic, compliant with the MID Directive,
single-phase electricity meter, designed for measurement in a
2-wire direct system.
The built-in real-time clock allows energy consumption to be
measured with 4 tariff zones.
The meter is equipped with RS-485 communication interface
with Modbus RTU protocol allowing remote reading and config-
uration of the meter.
Compliance
Purpose
F&F Filipowski sp. j.
Konstantynowska 79/81, 95-200 Pabianice, POLAND
phone/fax [phone]
www.fif.com.pl; e-mail: [e-mail]
Do not dispose of this device in the trash along with other waste!
According to the Law on Waste, electro coming from households free of charge and can
give any amount to up to that end point of collec� on, as well as to store the occasion of
the purchase of new equipment (in accordance with the principle of old-for-new, regard-
less of brand). Electro thrown in the trash or abandoned in nature, pose a threat to the
environment and human health.

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»1-phase energy meter;
»direct measurement up to 100 A;
»DIN rail mounting (1 module);
»operate in one of two measurement modes:
−active and reactive energy measurement;
−measurement of imported and exported active energy;
»energy measurement in 4 tariff zones;
»built-in real time clock with battery backup to switch tariff
zones;
»time schedules dividing the day into tariff zones;
»it can settle energy according to schedules specific for business
days and weekends;
»indication of network parameters;
»compliance with MID;
»RS-485 port;
»Modbus RTU protocol;
»backlit LCD display;
»the possibility of a local reading of the indication of energy
consumption also in the case of a power failure of the meter.
The LE-01MW meter precisely measures the amount of consu-
med electricity under the influence of flowing current and ap-
plied voltage. Power consumption is indicated by the flashing
LED. In addition, the meter measures the parameters of the sup-
ply network and the temperature of its own system. The values
are indicated cyclically on the LCD display.
Characteristic of the device
Functioning

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The parameter is changed by default every 5 seconds or at the
frequency set by the user and manually, using the button on the
front of the casing of the meter.
The display is active when the indicator power is on.
The meter operates in the communication network as a Slave
device.
The communication takes place in accordance with the Modbus
RTU standard via the RS-485 serial port. The read-out values of
registers after conversion give results according to the indica-
tions on the indicator display.
Active energy consumed AE+/AE- [kWh]
Reactive energy AE+ [kWh]
Phase voltage U [V]
Phase current I [A]
Frequency F [Hz]
Active power P [W]
Reactive power Q [var]
Apparent power S [VA]
Power factor cosϕ
Description of measurement and configuration registers availa-
ble on the website www.fif.com.pl (on the device’s subpage).
Measured values
Modbus registers

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Change of meter address is done via the RS-485 port using the
Modbus RTU protocol command to set the desired value in the
meter register. The default meter address: 1.
The meter is marked with individual serial number allowing its
unambiguous identification. The marking is laser engraved and
cannot be removed).
The meter has sealable input and output terminal covers to pre-
vent any attempts to bypass the meter.
Meter address
Meter number
Sealing

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Front panel

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1 LIN power input
3 LOUT power output
N N-wire neutral
23 RS-485 output (A)
24 RS-485 output (GND)
25 RS-485 output (B)
Wiring diagram

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The meter’s display shows cyclically the following measured
values:
The list of displayed parameters and the frequency of switching
the displayed parameter can be parameterized via the RS-485
interface.
Data displayed on the LCD

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The button on the front of the meter is intended to change the
displayed parameters. In the case of a power failure, pressing
the button will activate the display for a few seconds and enable
an emergency reading of energy consumption.
1.Disconnect the power supply.
2.Mount the indicator on the rail in the distribution box.
3.Connect the neutral wire to terminal N.
4.Connect the input phase to terminal 1.
5.Connect the measured circuit or single receiver to terminal 3
(output phase L) and to N.
6.Connect terminals 23, 24 and 25 to the RS-485 network.
Program for test reading of the counted energy value and for
basic settings of the meter parameters.
Available at www.fif.com.pl (on the device’s subpage).
For communication of the meter with the computer, the USB
CN-USB-485 converter or any RS-485/USB standard is required.
installation 2-wire
rated voltage 230 V AC
minimum measured current 0.02 A
base current 0.25÷5 A
maximum current 100 A
voltage measuring range 100÷289 V AC
measurement accuracy (EN50470-1/3) class B
Mounting
LE Config service programm
Technical data

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rated frequency 50 Hz
insulation protection class II
housing PC material
overload 30×lmax/10 ms
insulation 4 kV/1 min.; 6 kV/1 μs
own power consumption 8 VA; 0,4 W
indication range 0÷999999 kWh
constant 100, 1000, 2000 pulses/kWh
communication
port RS-485
communication protocol Modbus RTU
transmission parameters 1200, 2400, 4800, 9600* bps
parity NONE, ODD, EVEN*
stop bits 1*
read-out signalling red LED
working temperature -25÷55°C
terminal
100 A 25 mm² screw terminals
RS-485 1 mm² screw terminals
tightening torque 0.4 Nm
dimensions 1 module (18 mm)
mounting on TH-35 rail
ingress protection IP51
_________________
* factory settings

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F&F products are covered by a 24-month warranty from the date
of purchase. The warranty is only valid with proof of purchase.
Contact your dealer or contact us directly.
F&F Filipowski sp. j. declares that the device is in conformity
with the essential requirements of The Low Voltage Directive
(LVD) 2014/35/EU and the Electromagnetic Compatibility (EMC)
Directive 2014/30/UE.
The CE and MID Declaration of Conformity, along with the ref-
erences to the standards in relation to which conformity is de-
clared, can be found www.fif.com.pl on the product subpage.
Dimensions
Warranty
CE declaration