Contrel EMM-4h Instruction Manual Download Page 4

 

EMM-4h 

instruction manual 

IM442-U v0.7 

pag. 4  

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 electrical measures of every phase. 
When 

Σ

L

 LED is ON, only the main display will be active showing the three-phase system value of the 

electrical measure selected. 
LED 

k

 and 

M

 show the eventual multiplying factor (k = kilo=x 1.000, M =Mega= x 1.000.000) 

Using the 

C

 key the display indicates also the values of the active and reactive energy counters. 

Using the 

A

 and 

B

 keys the display indicates the maximum and average values. 

G

display for the visualization of the electrical 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 (x 1000). 

Using the 

C

 key the display indicates the type of the energy displayed. 

Using the 

A

 and 

B

 keys the displays indicate the type of the value: average or maximum. 

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

- analog output programming (

SET

 

AN OUT

- 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

E

F

A

G

D

M

L1

L2

L3

k

k

kWh

kVArh

...h

max

avg

V

A

P.F.

W

VAr

VA

V

L-N

L-L

V

L-N

Hz

°C

V

L-L

A

-N

Σ

L

EMM-4h

electrical

multi meter

888

888

888
888

Summary of Contents for EMM-4h

Page 1: ... output alternative to digital input option digital output serial output RS485 insulated current inputs neutral current input digital input alternative to analog Output option MEASURED PARAMETERS parameters unit of measurement initial identification phase and three phase voltages V kV V L1 N V L2 N V L3 N Σ V L N phase to phase and three phase system voltages V kV V L1 L2 V L2 L3 V L3 L1 Σ V L L p...

Page 2: ... 240Vac 50 60Hz 1 4 0 400V 380 415Vac 50 60Hz 1 3 20 60Vac 24 72Vdc 1 3 85 230Vac 90 250Vdc It s possible for example to take the auxiliary power supply between phase and neutral in a 4 wires system or phase phase in a 3 wires system without neutral or from a VT in a medium voltage application measure voltage inputs 4 terminals are available for the connection to the 3 phase and neutral of the net...

Page 3: ... measure voltage inputs auxiliary power supply P1 P1 P1 P2 S1 S1 S1 S2 N L1 L2 L3 S2 S2 S2 S1 S1 S1 I1 I2 I3 VL1 VL2 VL3 N measure current inputs measure voltage inputs 0 110 230 400 auxiliary power supply N B on line with 3 wires without neutral or with neutral not supplied the N terminaln must not be connected INSERTION ON THREE PHASE LINE WITH 4 WIRES EMM imeasure voltage inputs Voltage inserti...

Page 4: ...ing the A and B keys the display indicates the maximum and average values G display for the visualization of the electrical 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 x 1000 Using the C key the display indicates the type of the energy displayed Using the A and B keys the displays indicate the ...

Page 5: ...synchronism 50 type 60 version with digital output seT PUL SE 10 0 kW kVAr pulse Set pulse weight 01 0 kW kVAr pulse 0 10 kW kVAr pulse 0 01 kW kVAr pulse version with digital output seT TPL Increase from 100 to 500 mS in step by 100 mS Decrease version with serial output seT ID ADR Increase Set address of network from 001 to 247 Decrease seT SER BDR Set baud rate 19200 baud 19 2 serial interface ...

Page 6: ...g Programming of the average time seT AVG T After the programming phase previously described pressing another time the A key on the F display will appear the message AVG T and the average time settable from 1 to 30 minutes To increase the value press the B key To decrease it press the C key To confirm it press the A key The average time is the time used to calculate the average parameters avg and ...

Page 7: ...B key at the same time If the password is wrong the message PASS ERR will appear on F 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 B and C keys as the same way done previously The menu is cyclic After the last setting the instrument go back to the first page of Setup SETUP It s always poss...

Page 8: ... HI and ALR LO With ALR SYS 123 the digital output will function as alarm verifying that the maximum value of the single phases doesn t exceed the maximum threshold set ALR HI and that the minimum value of the single phases doesn t come down the minimum threshold set ALR LO The activation of the alarm output will come after some seconds of delay set ALR DL In the REMOTE mode the output status will...

Page 9: ...the set SET THE HIGH AND THE LOW THRESHOLDS On F display will appear the message ALR Hi with the high threshold value confirming with the A key on the same display will appear the message ALR LO with low threshold value The B to increase and C to decrease keys are used to set the high and the low thresholds values The range depends by the parameter and it is linked to the CT and VT ratios Pressing...

Page 10: ...sing the C key the message SET AN OUT will appear on the F display To accede to the menu programming press the A key the message SET will appear on the G display on the F display and on D led bar will appear the parameter to link to the analog output and selectable pressing more time the B key Pressing the A key to confirm the parameter selected SET THE HIGH AND THE LOW THRESHOLD Now it s necessar...

Page 11: ...age appears in F displays on the first part L1 the status of digital input on the second part L2 the status of the first digital output DO1 on the third part L3 the status of the second digital output DO2 The visualization of the digital input status activated that is supplied and deactivated that is not supplied depends of the type of energy visualization NORMAL TOT PAR e TB1 TB2 With NORMAL the ...

Page 12: ...he voltage values are of the three phase system the frequency is of the L1 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 correspondence of the kWh and KVArh on the front panel turn on to indicate the visualization of the active and reactive en...

Page 13: ...L3 max avg I N max avg phase and neutral currents maximum of average phase and neutral currents max demand max maxD avg Σ W max avg Σ VAr max avg Σ VA max avg three phase power maximum of average three phase powers maximum demand max maxD avg I L1 avg I L2 avg I L3 avg I N avg phase and neutral currents average phase and neutral currents max maxD avg Σ W avg Σ Var avg Σ VA avg three phase power av...

Page 14: ...on the serial line it s better to see the manual of EMI1 serial converter EIA485 INTERFACE COMUNICATION RS485 It is possible to exchange information between the instrument and a PC PLC or other compatible system through the asynchronous serial line RS485 The interface EIA485 allows a multi drop connection in order to connect various instruments in the same network The maximum suggested length for ...

Page 15: ...ual IM442 U v0 7 pag 15 DIMENSIONS 96 96 81 14 9 90 92 92 R3 cut out panel flush mounting for panel DIN 43700 M L1 L2 L3 k k kWh kVArh h max avg V A P F W VAr VA V L N L L VL N Hz C VL L A N ΣL EMM 4h electrical multi meter ...

Page 16: ...UTS OUTPUTS digital outputs Two outputs with common optomos 12 230Vac dc max 150mA insulation 3kV for 60 seconds Pulse Function Weight programmable 0 01 0 1 1 10 kWh pulse Pulse duration 100 200 300 400 500 milliseconds selectable DO1 active energy pulse output accumulated Tb1 Tb2 DO2 reactive energy pulse output accumulated Tb1 Tb2 digital Input Changing time band function or reset partial counte...

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