MPIC00218R00-Ed2206

Algodue Elettronica Srl
Via P. Gobetti, 16/F • 28014 Maggiora (NO), ITALY
Tel. +39 0322 89864 • www.algodue.com • support@algodue.it

UEC6C
UEM6C

  USER MANUAL

Subject to change without prior notice

PICTURE

A

         

---

B

PULSE	RS485 MODBUS	M-BUS	ETHERNET

---

C

---

D

---

E

---

F

1. RJ485/USB CONVERTER
2. RJ485 LINE
3. SIGNAL REPEATER
4. MAX 32 INSTRUMENTS

---

G

1. MASTER INTERFACE
2. M-BUS NETWORK
3. M-BUS PORT HAS NO POLARITY

---

H

---

I

3.4.3 PULSE, M-BUS, RS485 MODBUS, ETHERNET	3.3.3 PULSE, M-BUS	3.3.2 PULSE, M-BUS

---

J

---

K

1. TARIFF 1 COUNTERS
2. TARIFF 2 COUNTERS
3. TOTAL COUNTERS
4. PARTIAL/BALANCE COUNTERS
5. REALTIME VALUES
6. SETUP 1
7. DEVICE INFO
8. SETUP 2

---

L

---

M

---

N

1. ACCESS TO SETUP 1
2. (01…F7 Hex)
   MODBUS ADDRESS
3. (0…250)
   M-BUS PRIMARY ADDRESS
4. (0…99999999)
   M-BUS SECONDARY ADDRESS
5. (300…57600 bps)
   COMMUNICATION SPEED
6. (RTU=8N1, ASCII=7E2)
   MODBUS MODE
7. (Default: IP=192.168.1.249,
   Username&Password=admin)
   ETHERNET PAR. SET DEFAULT
8. COUNTER ASSIGNED TO S0
9. ALL PARTIAL COUNTERS RESET
10. ON ANY SETUP 1 PAGE
11. EXIT FROM SETUP 1

---

O

1. ACCESS TO SETUP 2
2. (1…10000)
   CT RATIO VALUE
3. (1, 5 A)
   CT FULL SCALE VALUE
4. (3.4.3, 3.3.3, 3.3.2)
   WIRING DIAGRAM
5. ENERGY COUNTER RESET
6. ON ANY SETUP 2 PAGE
7. EXIT FROM SETUP 2

---

6A THREE PHASE ENERGY METER

The communication protocols and the relevant softwares are available at www.algodue.com

WARNING! Device installation, wiring configuration and terminal cover sealing must be carried out only by qualified professional staff. Switch off the voltage before device installation.

AVAILABLE MODELS

Name	Model	COM port	Nominal voltage, frequency (Un, f)	Available wirings			Tariff input	S0	Available package
				3.4.3	3.3.3	3.3.2
UEC6C-A	PULSE	Ext.module	3×230/400 V, 50 Hz				1	2	MID or MID S
UEM6C-A M	M-BUS	M-Bus					1	1
UEM6C-4A R	RS485 MODBUS	RS485					1	1
UEM6C-4A E	ETHERNET	Ethernet						1
UEC6C-D	PULSE	Ext.module	3×230/400…3×240/415 V, 50/60 Hz				1	2	NONE or RESET
UEM6C-D M	M-BUS	M-Bus					1	1
UEM6C-4D R	RS485 MODBUS	RS485					1	1
UEM6C-4D E	ETHERNET	Ethernet						1

The following preset packages are available according to the device (see table):

MID:       MID certified meter, with reset function only on partial counters.
MID S*:  MID certified meter, with reset function only on partial counters, without reactive energy counters on display.
NONE:   Meter without MID certification, with reset function only on partial counters.
RESET:   Meter without MID certification, with RESET function on ALL counters.

*For MID S configuration, the device name changes: the S letter is added (e.g. UEM6C-4AS R).

OVERVIEW

Refer to picture B:

1. Neutral terminal
2. Backlight LCD display
3. SET key
4. UP key
5. ENTER key
6. Metrological LED
7. Current and voltage terminals
8. Safety-sealing (DO NOT REMOVE)
9. Optical port for external communication module – usable only on PULSE model

The safety-sealing and the sealable terminal covers are included only with MID or MID S package.
For a correct seal closure, refer to picture C.

SYMBOLS ON FRONT PANEL (EXAMPLE)

Refer to picture D:

A. Device name
B. Serial number
C. Secondary address for M-BUS model. For PULSE/RS485 MODBUS model: field empty. For ETHERNET model: MAC address
D. Data Matrix
E. Protection class
F. Meter constant (metrological LED)
G. Base current (max current)
H. Working temperature
I. Accuracy class
J. Nominal voltage/frequency
K. Wiring type: =3phases 4wires 3CTs, =3phases 3wires 3CTs, =3phases 3wires 2CTs
L. MID approval symbols
M. Type approval certification

If the device is NO MID version, “Cl.0,5 S IEC 62053-22” will be shown instead of I, L and M fields.

OPTICAL PORT – to be combined with external communication modules only

The optical port is usable according to the device model.
The optical port works only with a communication module of the same energy meter serie.

The optical port ensures different communication types with the energy meter, according to the combined communication module. After making communication module connections, combine the energy meter with the module: place them side by side, perfectly lined up, with module optical port facing the meter optical port. Refer to picture E.

RS485 PORT

The RS485 port is available according to the device model.

The RS485 port allows to manage the device by MODBUS RTU/ASCII protocol. For device network connection, install a terminal resistance (RT=120…150 Ω) on the RS485 converter side and another one on the last device connected on the line. The maximum recommended distance for a connection is 1200m at 9600 bps. For longer distances, lower communication speed (bps), low-attenuation cables or signal repeaters are needed. Refer to picture F.

Default values: MODBUS RTU (8N1), 19200 bps

M-BUS PORT

The M-BUS port is available according to the device model.

The M-BUS port allows to manage the device by M-BUS protocol. A master interface is required between PC and the M-Bus network to adapt RS232/USB port to network. The maximum number of devices to be connected can change according to the used master interface. For the connection among the different devices, use a cable with a twisted pair and a third wire. Refer to picture G.

The device can communicate when at least 2 voltage phases are connected. Default values as defined in EN 13757 standard.

ETHERNET PORT

The ETHERNET port is available according to the device model.

Install the included ferrite on the Ethernet cable at a maximum 5 cm distance from the device. Make sure that the Ethernet cable is rolled twice inside the ferrite.
The ETHERNET port gives the possibility to manage the device by any PC connected on the Ethernet/Internet network. In the browser web address field type 192.168.1.249, the device Web server will be displayed. Web server has been designed for two user type, Administrator for full device access (username: admin, password: admin), and User for limited device access (username: user, password: user).

Refer to picture H:

1. STATUS LED: communication status; SLOW BLINKING=internal communication ok, ON=switching on or upgrading in progress, FAST BLINKING=internal communication error
2. SPD LED: communication speed; OFF=10 Mbps, ON=100 Mbps
3. LINK LED: link activity; ON=link ok, BLINKING=link activity

TARIFF INPUT

The tariff input is available according to the device model.

The tariff management is carried out by connecting an external device to tariff input, which is providing a signal to the energy counter. The tariff signal is managed as follows:

• if the tariff input detects a voltage free signal (0 V), the device will increase the tariff 1 counters group
• if the tariff input detects a voltage signal (see Technical features), the device will increase the tariff 2 counters group

Note: Total counters increase continuously regardless from the tariff input status.

WIRING DIAGRAMS

It is suggested to install a low power switch or some fuses on the voltage inputs for protection and in order to operate on the instrument without deactivating the plant.

Refer to picture I: 3.4.3 = 3 phases, 4 wires, 3 CTs. Available for all models.
3.3.3 = 3 phases, 3 wires, 3 CTs. Available only for PULSE and M-BUS models.
3.3.2 = 3 phases, 3 wires, 2 CTs. Available only for PULSE and M-BUS models.

Before instrument power ON, check if all connections are made in a proper way. Make sure that the voltage and current terminals are connected correctly. Moreover, make sure that low voltage ports, such as communication ports and/or SO ports, are connected to low voltage lines. These safety precautions may reduce the risk to damage the instrument in case of improper connections.

SYMBOLS ON DISPLAY

Refer to picture J:

1. Phase sequence: = correct (123),  = wrong (132),  = not defined (e.g. one or more phases are missing)
2. System value
3. Value phase number
4. Different meanings according to the shown item:
   · CT XXXX: CT ratio value; SEC: secondary value shown in the main area; SEtUP: Setup page; InFO: Info page
5. Metrological parameters corrupted (Code: XX). Useless counter, to be returned to the Manufacturer
6. S0-1/S0-2 output active status
7. Communication active status
8. Setup page
9. Main area
10. Measuring unit area
11. Partial counter value. Flashing=stopped counter
12. 1 or 2 tariff counter value
13. Balance counter value
14. Inductive value
15. Capacitive value
16. Imported (→), exported (←) energy or power value

MEASUREMENTS

The parameters are available according to the device model.

	SYMBOL	MEASURE UNIT	DISPLAY	PORT
INSTANTANEOUS VALUES
Voltage	V∑, V1, V2, V3	V
Line voltage	V12, V23, V31	V
Current	I∑, I1, I2, I3, IN	A
Power factor	PF∑, PF1, PF2, PF3	–
Apparent power	S∑, S1, S2, S3	VA
Active power	P∑, P1, P2, P3	W
Reactive power	Q∑, Q1, Q2, Q3	var
Frequency	f	Hz
Phase sequence	CW / CCW	–
Power direction		–
RECORDED DATA
Total active energy	∑, L1, L2, L3	Wh
Total ind. and cap. reactive energy	∑, L1, L2, L3	varh
Total ind. and cap. apparent energy	∑, L1, L2, L3	VAh
Tariff 1-2 energy counters (NO ETHERNET model)	∑, L1, L2, L3	Wh, varh, VAh
Resettable partial energy counters	∑	Wh, varh, VAh
Energy balance	∑	Wh, varh, VAh
In case of ETHERNET model, all parameters can be recorded.
OTHER INFORMATION	SYMBOL	STATUS	DISPLAY	PORT
Present tariff (NO ETHERNET model)	T1, T2	–
Secondary values	SEC	–
CT ratio	CT	–
Undervoltage/overvoltage	AL	–
Undercurrent/overcurrent	AL	–
Frequency out of range	AL	–
Partial counter status	/	Started / Stopped
S0-1, S0-2 output status		Active
Legend:    = Standard    = Bidirectional value    = varh not available for MID S package

The measuring unit can be displayed with k (kilo) or M (Mega) multiplier. The used multiplier is automatically selected by the counter according to the set CT ratio. All the system counters (Wh∑, varh∑, VAh∑) can be associated to S0 output. In case of 2 S0 outputs (PULSE model), it is not allowed to set the same counter for both outputs.
NOTE: in case of 3 wire connection, phase-neutral voltages, neutral current, phase powers, phase power factors parameters and all phase counters are not available.

BALANCE COUNTER VALUES CALCULATION

BALANCE COUNTER	FORMULA
kWh	(→kWh T1) – (←kWh T1) + (→kWh T2) – (←kWh T2)
kVAh ind	(→kVAh ind T1) – (←kVAh ind T1) + (→kVAh ind T2) – (←kVAh ind T2)
kVAh cap	(→kVAh cap T1) – (←kVAh cap T1) + (→kVAh cap T2) – (←kVAh cap T2)
kvarh ind	(→kvarh ind T1) – (←kvarh ind T1) + (→kvarh ind T2) – (←kvarh ind T2)
kvarh cap	(→kvarh cap T1) – (←kvarh cap T1) + (→kvarh cap T2) – (←kvarh cap T2)

KEY FUNCTIONS

Some functions are available according to the device package.

HOW TO	WHERE	KEY	PRESS TIME
Scroll loops	Any page except for Setup 1/2		Instantaneous
Scroll pages in a loop	Any loops page		Instantaneous
Display secondary value for 10 s	Any energy counter page		›3 s
Access Setup 1 pages	“Setup?” page		›3 s
Access Setup 2 pages	Any page except for Setup 1	SET	›3 s
Change a value/digit	Setup 1/2 pages		Instantaneous
Confirm a value/digit	Setup 1/2 pages		Instantaneous
Change counter to be reset	Reset page in Setup 2		Continuous
Exit Setup 1/2 pages	Setup 1/2 pages		›3 s
Start/stop the displayed partial counter	Partial counters pages	+	Instantaneous
Reset the displayed partial counter value	Partial counters pages	+	›3 s
Display test	Any page except for Setup 1/2	+	›10 s

PAGE STRUCTURE

Up to 8 page loops can be displayed (refer to picture K). Some loops can be unavailable according to the device model.
Press to scroll pages in a loop.
NOTE: in case of 3 wire connection, pages showing phase values are not available. For MID S package, reactive energy counters are not displayed.

HOW TO DISPLAY THE COUNTER SECONDARY VALUE

Feature available only on counter pages.
By pressing key for 3 s, CT secondary measurements will be shown on display (refer to picture L). To scroll energy values, refer to section “PAGE STRUCTURE“. After 10 s keyboard idle, the counter will shown again CT primary data.

HOW TO START / STOP / RESET PARTIAL COUNTERS

Feature available only on partial counter pages.
To start, stop or reset a partial counter, refer to the following procedures shown in picture M:

1. Procedure to start the displayed partial counter
2. Procedure to stop the displayed partial counter previously started
3. Procedure to reset the displayed partial counter

In START?, STOP?, RESET? pages, selectable items are: Y=to confirm, N=to cancel. To change item, press .

SETUP PAGES (pictures N, O)

Some setup pages can be unavailable according to the device model/package.

From any setup value page:

1. Press , the digit/item will start to flash.
2. Press to change the value and confirm with (repeat this procedure for the next digits, if any).

From partial counter reset or set default page:

1. Press , a new page for confirmation will be displayed.
2. Press to change the flashing value, Y to confirm the reset, N to cancel. Confirm with .

From energy counter reset page (only package RESET):
ALL or 001…120 range are the possible selections:

• ALL=allows to reset all values relevant to a specific counter group. Each counter group can be identified by symbols on display (←/→, T1/T2).
• 001…120=allows to reset the value relevant to a single counter. Each counter can be identified by symbols on display (←/→, L1/L2/L3, T1/T2, measure unit, , ).

The first six pages are relevant to counter groups (ALL) and displayed according to the following order:
tariff 1 imported energy / tariff 1 exported energy / tariff 2 imported energy / tariff 2 exported energy / total imported energy / total exported energy
The next pages are relevant to single counters (001…120).
NOTE: in case of 3 wire connection, the phase values are not available. For this reason, the counters to be reset within 001…120 range are 30 only.

1. To select the group or the energy counter to be reset, press , the value will start to flash.
2. Press to change the value. To scroll the value quickly, keep pressed .
3. Confirm with , a new page for confirmation will be displayed.
4. Press to change the flashing value, Y to confirm the reset, N to cancel. Confirm with .

From setup exit page:

1. Press to change the flashing value, Y to exit and save the settings, N to exit without saving, C to continue scrolling setup pages. Confirm with .

INFO PAGES

Up to 7 pages can be displayed to show details about:

1. Metrological part firmware release (rel1)
2. User interface firmware release (rel2)
3. Metrological part checksum (CS1)
4. User interface checksum (CS2)
5. Communication type
6. CT secondary full scale value (FSA)
7. Set wiring mode (only PULSE/M-BUS model)

The fifth page is not displayed in case of PULSE model not combined with communication module.

TECHNICAL FEATURES

The technical features can change according to the device model.

GENERAL
Housing in compliance with standard	DIN 43880
Terminals in compliance with standard	EN 60999
POWER SUPPLY
Power supplied from the voltage circuit
Voltage range according to the device model	Un ±20%
Max consumption (for each phase) for PULSE and M-BUS models	7,5 VA – 0,5 W
Max consumption (for each phase) for RS485 MODBUS & ETHERNET models	3,5 VA – 1 W
CT burden (for each phase)	0,04 VA
Nominal frequency	50/60 Hz
CURRENT
Starting current /st	1 mA
Minimum current /min	10 mA
Transitional current /tr	50 mA
Reference current /ref (/n)	1 A
Maximum current /max	6 A
CURRENT TRANSFORMER AND FSA
Minimum CT ratio	1
Maximum CT ratio	10000
FSA programmable	1 or 5 A
ACCURACY
Active en. class C in compliance with	EN 50470-3 (MID)
Active en. class 0,5 S in compliance with	IEC 62053-22 (NO MID)
Reactive en. class 2 in compliance with	EN 62053-23
COMMUNICATION for RS485 MODBUS model
In compliance with standard	EIA RS485
Isolated port	RS485
Unit load	1/8
Protocols	MODBUS RTU/ASCII
Communication speed	300…57600 bps
COMMUNICATION for M-BUS model
In compliance with standard	EN 13757-1-2-3
Isolated port	M-BUS
Unit load	1
Protocol	M-BUS
Communication speed	300…9600 bps
COMMUNICATION for ETHERNET model
In compliance with standard	IEEE 802.3
Isolated port
Protocols	MODBUS TCP, HTTP, NTP, DHCP
Communication speed	10/100 Mbps
S0 OUTPUTS
Passives optoisolated
Max values for PULSE model (in compliance with EN 62053-31)	250 VAC-DC – 100 mA
Max values for RS485 MODBUS, M-BUS, ETHERNET models (in compliance with EN 62053-31)	27 VDC – 27 mA
Meter constant according to the set CT ratio. The measuring unit (imp/kWh, imp/kvarh, imp/ kVAh) changes according to the assigned counter (kWh∑, kvarh∑, kVAh∑).	1000 → CT = 1…4 200  → CT = 5…24 40    → CT = 25…124 8      → CT = 125…624 1       → CT = 625…3124 0,1    → CT = 3125…10000
Pulse length	50 ±2ms ON time min. 30 ±2ms OFF time
TARIFF INPUT (NO ETHERNET model)
Active optoisolated
Voltage range for Tariff 2 (T2)	80…276 VAC-DC
METROLOGICAL LED
Meter constant	10000 imp/kWh
WIRE SECTION FOR TERMINALS AND FASTENING TORQUE
Measuring terminals (A & V)	1,5…6 mm² / 1,5 Nm
S0 output, tariff, port terminals	0,14…2,5 mm² / 0,5 Nm
SAFETY ACCORDING TO EN 50470-1
Pollution degree	2
Protective class (EN 50470-1)	II
Pulse voltage test	1,2 / 50 μs 6 kV
AC voltage test (EN 50470-3, 7.2)	4 kV
Housing material flame resistance	UL 94 class V0
ENVIRONMENTAL CONDITIONS
Mechanical environmental	M1
Electromagnetic environmental	E2
Operating temperature	-25°C … +55°C
Storage temperature	-25°C … +75°C
Humidity (without condensation)	max 80%
Sinusoidal vibration amplitude	50 Hz ±0,075 mm
Protection degree – frontal part (granted only in case of installation in a cabinet with at least IP51 protection degree)	IP51
Protection degree – terminals	IP20
INTERNAL USE

Documents / Resources

algodue UEC6C-A Three Phase Electricity Meter [pdf] User Manual UEC6C-A Three Phase Electricity Meter, UEC6C-A, Three Phase Electricity Meter, Phase Electricity Meter, Electricity Meter, Meter

References

• User Manual