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

IM380-U v3.1 

pag. 3 / 12

 

WIRING DIAGRAMS 

P1

S1

S1

S2

L1
L2
L3

THREE PHASE LINE WIRING WITH 3 WIRES AND 2 CT
(AARON Wiring)

P1

P2

S2

P2

LOAD

P1

P2

S1

S2

N

L

SINGLE PHASE WIRING

Should the case be that the instrument is used on single
phase, it has to be considered that the valid measures are
related to the phase L1, others realated to the three phase
system are not to be considered.

P1

P1

P1

P2

S1

S1

S1

S2

N

L1
L2
L3

IL2

IL1

IL3

S1

S2

V

L1

V

L2

V

L3

N

m

e

a

s

u

ri

n

g

 c

u

rr

e

n

t

in

p

u

ts

m

e

a

su

ri

n

g

 v

o

lta

g

e

in

p

u

ts

On three wires line (without neutral or with not
distribuited neutral) DON’T wire the N terminal.

WIRING IN A THREE PHASE LINE WITH 3 OR 4 WIRES

EMM

LOAD

aux1

aux2

aux iliary

supply

V

L1

V

L2

V

L3

N

m

e

a

su

ri

n

g

 v

o

lta

g

e

in

p

u

ts

EMM

aux1

aux2

aux iliary

supply

V

L1

V

L2

V

L3

N

m

e

a

su

ri

n

g

 v

o

lta

g

e

in

p

u

ts

EMM

aux1

aux2

aux iliary

supply

P1

S1

N

L1
L2
L3

V

L1

V

L2

V

L3

N

m

e

a

su

ri

n

g

 v

o

lta

g

e

in

p

u

ts

On three wires line (without neutral or with not
distribuited neutral) DON’T wire the N terminal.

BALANCED THREE PHASE LINE WIRING WITH
3 OR 4 WIRES

EMM

LOAD

aux1

aux2

aux iliary

supply

LOAD

S2

S1

S1

S2

IL2

IL1

IL3

S1

S2

m

e

a

s

u

ri

n

g

 c

u

rr

e

n

t

in

p

u

ts

S2

S1

S1

S2

IL2

IL1

IL3

S1

S2

m

e

a

s

u

ri

n

g

 c

u

rr

e

n

t

in

p

u

ts

S2

S1

S1

S2

IL2

IL1

IL3

S1

S2

m

e

a

s

u

ri

n

g

 c

u

rr

e

n

t

in

p

u

ts

S2

S1

S1

S2

RS485 Connection

EMM

aux1

aux2

aux iliary

supply

RS485

B

A

COM

EMM

aux1

aux2

aux iliary

supply

RS485

B

A

COM

Connection with shielded

Connection with not shielded

Digital Output connection

EMM

aux1

aux2

aux iliary

supply

Co DO1

DO2

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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