background image

 

EMM-R4h EMM-

μ

4h 

instruction manual 

IM441-U v0.7 

pag. 6  

DESCRIPTION FRONT PANEL– OPERATORS 

LEGEND: 

A

push-button for the visualization of electrical parameters of three-phase system with the corresponding LED 
indication. In modality programming (SETUP) it’s used to confirm the parameter set. 

B

push-button for the selection of the electrical parameter to be displayed on display 

F

. In modality programming 

(SETUP) it’s used to increase the value of the parameters to set.

 

C

push-button for the selection of the electrical parameter to be displayed on display 

G

. In modality programming 

(SETUP) it’s used to reduce the value of the parameters to set. 

D

LED bar for the indication of the electrical parameter displayed on display 

F

E

LED bar for the indication of the electrical parameter displayed on display 

G

F

3 displays for the visualization of every phase measures. When 

L

 LED is ON, only the main display will be active 

showing the three-phase system value of the measure selected. LED 

k

 and 

M

 show the eventual multiplying factor: 

k=kilo=x1000, M=Mega=x1000000. Using the 

C

 key the display indicates also the values of the active, reactive and 

apparent energy counters. Using the 

A

 and 

B

 keys the display indicates the maximum and average values. 

G

: display

 

for

 

the

 

visualization

 

of

 

the

 

measure

 

indicated

 

in

 

LED

 

E

 

(energy

 

counters

 

excluded).

 

The

 

voltage

 

values

 

are

 

referred

 

to

 

the

 

three-phase

 

system.

 

The

 

k

 

LED

 

displays

 

the

 

reading

 

in

 

kilo

 

(x1000).

 

Using

 

the

 

C

 

key

 

the

 

display

 

indicates

 

the

 

type

 

of

 

the

 

energy

 

displayed.

 

Using

 

the

 

A

 

and

 

B

 

keys,

 

the

 

display

 

indicates

 

the

 

type

 

of

 

average

 

or

 

maximum

 

value. 

A+C

: when pressing simultaneously the instrument pass to the following menu: instrument programming (

SETUP

), 

energy counters and peak values deleting (

RESET

), digital outputs programming (

SET

 

DO1

;

 

SET

 

DO 2

) (only 

for version with digital output), hour counter programming (

HR_

), I/O diagnostic page. 

A+B

: when pressing simultaneously the instrument pass to the visualization of average and maximum values stored. 

 

MENU OF INSTRUMENT PROGRAMMING (

SETUP

To

 

enter

 

in

 

SETUP

 

it’s

 

necessary

 

to

 

press

 

at

 

the

 

same

 

time

 

A

 

and

 

C

 

keys,

 

on

 

the

 

F

 

display

 

will

 

appear

 

the

 

message

 

SETUP

.

 

Pressing

 

the

 

A

 

key

 

on

 

the

 

G

 

display

 

will

 

appear

 

the

 

message

 

SET

 

that

 

will

 

remain

 

always

 

displayed

 

during

 

the

 

set

 

of

 

each

 

parameter

 

to

 

highlight

 

the

 

SeTUp

 

phase

 

in

 

running.

 

The

 

set

 

values

 

will

 

be

 

keep

 

also

 

in

 

absence

 

of

 

auxiliary

 

power

 

supply. 

B

C

D

E

F

A

G

k

M

k

V

L-N

L1

L2

L3

L

Hz

electrical

multi meter

V

A

P.F.

W

VAr

VA

V

L-N

L-L

°C

V

L-L

alarm

kWh

kVArh

...h

max

avg

max

maxD

avg

EMM

DIGITAL OUTPUTS

Digital outputs:
the DO1 output is used as PULSE and it's linked
to the ACTIVE energy counter,
the DO2 output is used as PULSE and it's linked
to the REACTIVE energy counter.
DO1 and DO2 can be used as ALARM and
linked to a measured parameter.

Max 150mA
Max 230Vac/dc

Summary of Contents for EMM-M4H

Page 1: ...c OPTIONS internal CT digital output in alternative to the serial port serial port in alternative to the digital output power supply different from standard version current input 1A MEASURED PARAMETERS parameters unit of measurement initial identification phase and three phase voltages V kV V L1 N V L2 N V L3 N V L N phase to phase and three phase system voltages V kV V L1 L2 V L2 L3 V L3 L1 V L L...

Page 2: ...tage range of measurable voltage L2 L3 phase to phase power supply 400V 300 500V phase to phase 175 290V phase neutral 230V 175 290V phase to phase 130 170V phase neutral 110V 85 145V phase to phase 50 85V phase neutral L3 N phase neutral power supply 230V 300 500V phase to phase 175 290V phase neutral 110V 175 290V phase to phase 100 170V phase neutral The standard version allows to apply the ins...

Page 3: ...TION ON THREE PHASE LINE WITH 4 WIRES AND 3 VT EMM P1 S1 P1 P1 P2 S1 S1 S2 INSERTION ON THREE PHASE LINE WITH 3 OR 4 WIRES on line with 3 wires without neutral or with neutral not supplied the N terminal must not be conneccted LOAD EMM P1 S1 P1 P1 P2 S1 S1 S2 N L1 L2 L3 N L1 L2 L3 ...

Page 4: ... P2 S1 S2 N L1 L2 L3 AMPEROMETRIC INSERTION ON THREE PHASE LINE WITH 2CT AARON insertion VOLTAGE INSERTION ON THREE PHASE LINE WITH 3 WIRES AND 2 VT This voltage insertion is possible only with the version with internal CT t suffix LOAD EMM L1 L2 L3 S2 S2 S1 S1 P2 P2 P1 P1 ...

Page 5: ...INSERTION ON BALANCED THREE PHASE LINE WITH 3 OR 4 WIRES on line with 3 wires without neutral or with neutral not supplied the N terminal must not be connected L1 L2 L3 LOAD EMM P1 P2 S1 S2 INSERTION ON SINGLE PHASE Only for models with power supply phase neutral Vaux L3 N N L ...

Page 6: ...D E energy counters excluded The voltage values are referred to the three phase system The k LED displays the reading in kilo x1000 Using the C key the display indicates the type of the energy displayed Using the A and B keys the display indicates the type of average or maximum value A C when pressing simultaneously the instrument pass to the following menu instrument programming SETUP energy coun...

Page 7: ...0 kW kVAr pulse version with digital output 01 0 kW kVAr pulse 0 10 kW kVAr pulse 0 01 kW kVAr pulse seT TPL Increase from 100 to 500 mS in step by 100 mS Decrease version with digital output seT ID ADR Increase Set address of network from 001 to 127 Decrease version with serial output seT SER BDR Set baud rate 19200 baud 19 2 serial interface 9600 baud 9 60 version with serial output 4800 baud 4 ...

Page 8: ... energy visualization type after the visualization of the temperature With TOT PAR will have the visualization of the partial and total energy counters With NORMAL there will be only the visualization of total counters that it s possible to reset from RESET menu Programming insertion mode 3PH In a unbalance three phase system it s necessary to set UN_BAL unbalance while in a balance system only on...

Page 9: ...um values and all energy hours counters Entry to menu seT UP seT Up RESET SET DO1 SET DO2 SET HR_ OFF OFF the visualization depends on the settings and the I O status RESET PEA NO YES Confirm Reset Deleting maximum values max RESET AVG NO YES Confirm Reset Deleting average values avg and maximum demand maxD RESET EN NO YES Confirm Reset Deleting energy counters RESET ALL NO YES Confirm Reset Delet...

Page 10: ...ress A key to confirm CHOOSE THE PARAMETER TO LINK TO THE DIGITAL OUTPUT With an alarm modality set it s necessary to select the parameters associated to the alarm output by pressing the B and C keys until the parameter choice appears on the third part L3 of F display and the glowing the corresponding led on the D bar Press A key to confirm the set SET THE HIGH AND THE LOW THRESHOLDS On F display ...

Page 11: ...eresis value With only the LO threshold set the alarm condition is activated when the parameter set in alarm drop below the threshold The digital output is enabled only if the alarm condition remain activated for all delay time set From the activation of the digital output the restore is automatic when the parameter grow above the hysteresis value With both LO and HI threshold set the alarm condit...

Page 12: ...ore time the B key to select the parameter and the A key to confirm it SET THE THRESHOLD Subsequently it s necessary to set the threshold using the B to increase and C to decrease keys Confirm with A key I O INFO PAGE After the hour counter set the I O info page appears in F displays on the second part L2 the status of the first digital output DO1 on the third part L3 the status of the second digi...

Page 13: ...same way of the section 1 press the C button to select the parameter that can be displayed and indicated from E LED The voltage values are of the three phase system the frequency is of the L3 channel Visualization energy and hours counters With the C key it s possible to visualize on F display the active reactive and apparent energy counters One segment of the right digit of the G display in corre...

Page 14: ...hase currents I L1 max avg I L2 max avg I L3 max avg max maxD avg maximum of average phase currents max demand three phase power W max avg VAr max avg VA max avg max maxD avg maximum of average three phase powers maximum demand phase currents I L1 avg I L2 avg I L3 avg max maxD avg average phase currents three phase power W avg Var avg VA avg max maxD avg average three phase powers NOTE relative t...

Page 15: ...verter and the end of the network last instrument connected Use always twisted cables with minimum section of 0 36mm2 22AWG and lower capacity of 60 pF m i e BELDEN cable type EIA RS485 Ref 3105A Shielded connection Should it be the case of long distance networks ambiences where there have been placed energy transporting cables or ambiences subject to be electrically disturbed it is suggested to u...

Page 16: ...ires 4 wires and single phase insertion in MT with external TV and transforming rate programmable from 0 1 to 400 0 current inputs from 0 02 to 5A permanent overload 30 from external TA with secondary 5A primary programmable from 5 to 10000A auto consumption 0 5VA INPUTS OUTPUTS digital outputs Two outputs with common optomos 12 230Vac dc max 150mA Insulation 3kV for 60 second Pulse Function Weigh...

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