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EMM-µD3h  EMM-µD3h-p  EMM-µD3h-485  instruction manual 

IM380-U v3.1 

pag. 6 / 12

 

Programming the transformation ratio of the external CT’s (

The progra

mming of the CT’s ratio is considered as the rate between the primary and the secondary (i.e.: with CT 1000/5, 

we must set 200 as value). The setting will be done with the push-button on the front panel. 
Some seconds after giving the auxiliary supply to the instrument (during the switching on, all LED and displays will flash 
alternatively to the firmware indication), by pressing the 

A

 key, the display 

C

 will show the message 

Then press 

A

 again to reach the programming menu and the 

C

 display will show the message 

and the value of 

the  transformation  ratio  (set  as  1  by  the  manufacturer)  will  appear  at  the  third  display.  Press  the 

B

  key  to  increase  the 

value or press simultaneously the 

A

 key to decrease the value (the variation is performed unit per unit). To speed up the 

operation,  keep  on  pressing  the  button 

A

  and 

B

  ,  and  the  variation  will  appear  successively  by  tens  and  hundreds, 

releasing  and  pressing  the  key  again  it  will  return  to increase  or  decrease  the  value  at unit  per  unit.  Press  the 

A

  key  to 

confirm, the instrument will pass to successive programming menu. Shouldn’t any key be pressed during a 10 seconds 
interval of time, the instrument will exit automatically from programming without saving the set values.

 

 

Programming of the transformation ratio of the external voltage transformers 

After the precedent programming phase, on 

E

 display will appear the inscription 

 (voltage transformer) and the value of 

the  transformation  rate  of  the  external  TV  (set  to  1  from  the  constructor),  considered  as  the  rate  between  primary  and 
secondary (example with TV 15/0.1 kV the value will be 150). 
In the same way at the programming of the CT rate will be possible to set this value. If the external TV are not used the 
value to set will be 1. To confirm the value press the 

A

 button. 

 

Programming of the average time (

After  the  programming  phase  previously  described,  pressing  another  time  the 

A

  key,  on  the 

C

  display  will  appear  the 

message 

 and the average time settable from 1 to 30 minutes. 

To

 

increase

 

the

 

value

 

press

 

the

 

B

 

key.

 

To

 

decrease

 

it,

 

press

 

the

 

A

 

key

 

with

 

B

 

key

 

already

 

pressed.

 

To

 

confirm

 

it

 

press

 

the

 

A

 

key. 

The average time is the time used to calculate the average parameters (

avg

) and the maximum demand (

maxD

). 

 

Programming insertion mode (

In

 

a

 

unbalance

 

three

 

phase

 

system

 

it’s

 

necessary

 

to

 

set

 

 

(unbalance)

 

while

 

in

 

a

 

balance

 

system

 

(only

 

one

 

CT

 

and

 

only

 

one

 

VT)

 

the

 

correct

 

set

 

is

 

 

(balance).

 

For

 

a

 

single

 

phase

 

insertion

 

it’s

 

necessary

 

to

 

set

 

 

Programming wiring connection mode (

This  setting  allows  to  definite  the  wiring  type  connection.  It’s  possible  to  chose  3  wires  or  4  wires.  With  the  4  wires 
connection the neutral parameter are displayed and enabled to use for the digital outputs settings. 

 

Programming of the synchronism type (

In this setting for the synchronization type, it’s possible to choose 

 to use the external frequency (on L1 phase) or 

 Hz to use the internal clock. 

 

Programming the weight of the energy pulses (

) (only

 

for EMM-µD3h-p) 

After the previously described programming step, and pressing the 

A

 key, the 

C

 display will show 

 

message and 

the weight value of each single pulse, settable between 4 values: 

 - 

 -   - 

For each emitted pulse, the instrument had counted 0,01 - 0,1 - 1 - 10 kWh , kVArh, kVAh according with what it has been 
selected  in  the  digital  output  configuration.  Press  the 

B

  key  to  modify  the  value  in  the  cyclic  mode.  Confirm  the 

configuration by pressing the 

A

 key.

 

 

Programming the pulse duration (

) (only

 

for EMM-µD3h-p) 

The message 

 will appear together with the pulse duration value, expressed in mS. It is possible to select the value 

between  100  mS  and  500  mS,  in  100  mS  steps.  Press  the 

B

  key  to  modify  the  value  in  the  cyclic  mode.  Confirm  the 

configuration by pressing the 

A

 key. 

 

Programming

 

of

 

the

 

address

 

for

 

the

 

communication

 

network

 

(

)

 

(only

 

for EMM-µD3h-485) 

After the confirm with the 

A

 key of the previous value, the message 

 will appear on 

C

 display; to set the value 

that will identify the instrument when it will be connected in a EIA485 communication network, proceed with the modality, 
already described. The settable values are from 1 to 247. To confirm, press the 

A

 key. 

 

Programming of the baud rate (

) (only

 

for EMM-µD3h-485) 

The  following  setting  is  the  baud  rate.  The  message 

 

on  the  first  two  parts  of 

C

 

display  to  indicate  the 

programming of the baud rate displayed on the third part (L3) of the 

C

 

display. To modify the value set, 

it’s necessary to 

use  the 

B

 

key.  The  values  settable  are: 

=>  19200  baud, 

=>9600  baud, 

=>4800  baud, 

=>2400 

baud. Press 

A

 to confirm the value displayed. 

 

Programming of the serial parameters (only for EMM-µD3h-485) 

The following message will appear on 

C

 display using the 

B

 key. To confirm press the 

A

 key. 

 

8 data bit / 1 stop bit
No parity

 

8 data bit / 2 stop bit  
No parity 

 

8 data bit / 1 stop bit
Even parity 

 

8 data bit / 1 stop bit 
Odd parity 

 

Programming of the Password (

The

 

instrument

 

is

 

supplied

 

without

 

password.

 

When

 

a

 

password

 

(from

 

0002

 

to

 

9999)

 

is

 

set,

 

using

 

the

 

B

 

(to

 

increase),

 

A-B

 

together

 

(to

 

decrease)

 

and

 

A

 

(to

 

confirm)

 

keys,

 

only

 

who

 

know

 

this

 

value

 

can

 

to

 

enter

 

in

 

the

 

setup.

 

The

 

password,

 

in

 

fact,

 

is

 

required

 

all

 

the

 

time

 

that

 

someone

 

try

 

to

 

enter

 

in

 

the

 

setup

 

(pressing

 

the

 

A

 

key

 

for

 

more

 

of

 

3

 

seconds).

 

If

 

the

 

password

 

is

 

wrong,

 

the

 

message

 

 

will

 

appear

 

on

 

C

 

display

 

and

 

the

 

instrument

 

go

 

back

 

to

 

the

 

measures

 

visualization.

 

To

 

input

 

the

 

password,

 

when

 

required

 

by

 

the

 

instrument,

 

at

 

the

 

enter

 

of

 

the

 

setup,

 

use

 

the

 

A

 

and

 

B

 

keys

 

as

 

the

 

same

 

way

 

done

 

previously. 

Содержание EMM-mD3h

Страница 1: ...ard version 110V rated 50 60Hz optional version 400V rated 50 60Hz optional version INTRODUCTION The EMM D3h are only featured for local visualising the electrical parameters The EMM D3h p has two dig...

Страница 2: ...he terminals aux1 and aux2 The rated supply voltages can be standard Vn 230V 15 50 60Hz under request Vn 110V 15 50 60Hz under request Vn 400V 15 50 60Hz measuring voltage inputs 4 terminals are avail...

Страница 3: ...PHASE LINE WITH 3 OR 4 WIRES EMM LOAD aux1 aux2 auxiliary supply VL1 VL2 VL3 N measur ing voltage inputs EMM aux1 aux2 auxiliary supply VL1 VL2 VL3 N measuring voltage inputs EMM aux1 aux2 auxiliary s...

Страница 4: ...r wiring the voltage measures input and auxiliary supply F Terminals for wiring the current measures input and the digital output when present in the instrument G LED for indicating of a three phase v...

Страница 5: ...or EMM D3h p kWh kVAr pulse Set pulse weight kWh kVAr pulse kWh kVAr pulse kWh kVAr pulse only for EMM D3h p Increase from to mS in step by 100 mS Decrease only for EMM D3h 485 Increase Set address of...

Страница 6: ...e connection It s possible to chose 3 wires or 4 wires With the 4 wires connection the neutral parameter are displayed and enabled to use for the digital outputs settings Programming of the synchronis...

Страница 7: ...arm In mode the digital output DO1 will emit pulses proportional to the active energy counted while the digital output DO2 will emit pulses proportional to the reactive energy counted The proportional...

Страница 8: ...B key pressed to decrease the values The range depends by the parameter and it is linked to the CT and VT ratios Pressing A key to confirm The threshold set is linked with CT and VT ratios for this re...

Страница 9: ...the energy meters are shown with the lighting of the LED kW h indicating the active energy values kWh whilst the lighting of the LED kVAr h are indicating the reactive energy values kVArh The lightin...

Страница 10: ...lti meter Visualization page 7 Three Phase Hour counter 520 2 h L1 L2 L3 L EMM D3 electrical multi meter VL N A kW kVAr kVA VL L h Hz out max avg SET P F Visualization page 1 VL1 N L1 on IL1 on L2 kWL...

Страница 11: ...max V L3 N max phase current I L1 max I L2 max I L3 max average phase current maximum demand I L1 max avg I L2 max avg I L3 max avg three phase system powers W max VAr max VA max average three phase s...

Страница 12: ...dance 1 M 3 4 and single phase wiring Current inputs From 0 02 to 5A permanent overload 50 from external CT s with secondary 5A optional 1A Primary programmable from 5 to 2000A self consumption 0 5VA...

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