MICROENER EMS-96 User manual

EMS-96
Electrical Measurement Supervisor
User Manual
FDE 13JMC3520859 rev A2

User Manual
ELECTRICAL MEASUREMENT
SUPERVISOR
EMS-96
FDE N°
13JMC3520859
Tél : [phone]
Fax : [phone] Rév. A2
Page 2 / 51
MANAGEMENT OF MODIFICATIONS
Rev. Description Date Created
by
Checked
by
Approved
by
Z First issue 2013/18/12 JMC DB LA
A Diffusion 2013/18/12 JMC DB LA
A2 Add picture in p6 2016/19/01 LA

User Manual
ELECTRICAL MEASUREMENT
SUPERVISOR
EMS-96
FDE N°
13JMC3520859
Tél : [phone]
Fax : [phone] Rév. A2
Page 3 / 51
SOMMAIRE
GENERALITY .................................................................................................................................... 4
Terms of warranty ............................................................................................................................ 4
Description ....................................................................................................................................... 5
Configuration Models......................................................................................................................... 5
Software Options .............................................................................................................................. 5
Measures Table ................................................................................................................................ 6
Installation....................................................................................................................................... 7
Warning for the user ......................................................................................................................... 7
Safety ............................................................................................................................................. 7
Connections ..................................................................................................................................... 8
Auxiliary power supply....................................................................................................................... 8
Voltage Inputs .................................................................................................................................. 9
Current Inputs ................................................................................................................................ 10
Serial ports (option) ........................................................................................................................ 11
Digital Outputs ............................................................................................................................... 12
Digital Inputs (option) ..................................................................................................................... 13
Digital I/O options .......................................................................................................................... 13
4 digital inputs and 2 digital outputs (option) ..................................................................................... 13
6 digital outputs (option) ................................................................................................................. 14
2 digital inputs, 4 digital outputs (option) .......................................................................................... 15
Wiring diagrams ............................................................................................................................. 16
Function keys ................................................................................................................................. 21
Frontal led ...................................................................................................................................... 21
Menu map ...................................................................................................................................... 22
Measures pages map...................................................................................................................... 24
Graphics map ................................................................................................................................. 26
Device map..................................................................................................................................... 27
Setup pages map............................................................................................................................ 28
Setup Items ................................................................................................................................... 29
Wiring Parameters ......................................................................................................................... 32
Acronym tables .............................................................................................................................. 48
Acronyms group table ..................................................................................................................... 48
Acronyms table of Instantaneous group ............................................................................................ 48
Acronyms table of Energies and TB (from 1 to 16) groups ................................................................... 48
Acronyms table of Average group ..................................................................................................... 49
Dimensions..................................................................................................................................... 49
Technical features .......................................................................................................................... 50

User Manual
ELECTRICAL MEASUREMENT
SUPERVISOR
EMS-96
FDE N°
13JMC3520859
Tél : [phone]
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Page 4 / 51
GENERALITY
Information in this document is subject to change without notice and does not represent a commitment on
the part of Contrel Elettronica Srl.
This documentation is consigned to the customer to enable the correct and safe operation of the instrument;
any other use of documentation is strictly prohibited.
The information contained herein is the property of Contrel Elettronica Srl, and by law, no part of it may be
reproduced, transcribed, stored in any retrieval system, or translated into any language by means (even for
internal purposes by the customer) without the express written permission of Contrel Elettronica Srl.
In addition, no part of this manual may be transmitted in any form by any means, including photocopying and
recording, for any purposes, without the express written permission of Contrel Elettronica Srl.
In case of Copyright violation the customer is directly responsible.
Terms of warranty
The warranty is valid for the period of twelve months after material receipt.
The warranty covers free repair or replacement of equipment parts, which are recognized as faulty due to
manufacturing defects.
Warranty does not cover those parts which results defective due to misuse or improper use, incorrect
installation or maintenance, operation by unauthorized personnel, damage during transportation, or which in
any case do not show manufacturing defects of the equipment.
Not included in the warranty terms are technical interventions regarding equipment installation to electrical
systems.
The manufacturer declines any responsibility for eventual injury or damage to persons, animals or things as
result of failure to follow the instructions in the user manual or caused by improper use of equipment.
The expenses of transport as well as the relative risks of same both to and from the place of repair will be the
sole responsibility of the user.
This warranty expires after the date of purchase and any assistance required after said date including spare
parts, labour, transport of personnel and material will be charged to the user following the tariffs in force for
Technical Assistance Service at the time of such requested service.
In any case the replacement of the equipment as well as the extension of warranty after such breakdown is
excluded.

User Manual
ELECTRICAL MEASUREMENT
SUPERVISOR
EMS-96
FDE N°
13JMC3520859
Tél : [phone]
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DESCRIPTION
The EMS (Electrical Measurement Supervisor) has advanced analysis functions that allow the measurement of
the main electrical parameters: voltage, current, frequency, power factor, active and reactive power, active
and reactive energy.
The instrument allows the measurement and analysis in real time of electrical parameters, also verifying the
quality of the energy thanks to THD measurement.
Bidirectional metering of energy allows both production and consumption of energy to be monitored with a
single device.
All information monitored by the analyzer can be transmitted to remote locations through communication
interfaces RS485, Ethernet with the support of numerous protocols including Modbus RTU, Modbus TCP/IP
and Profibus DP.
Interaction with the control and supervision systems is possible using inputs and outputs, all programmable.
EMS reads and displays the energy values measured in other energy meters connected to the network. This is
achieved thanks to digital inputs, which are able to acquire the impulses generated by the counters. In this
case, EMS acts as a data concentrator. It not only collects information from the electricity meters but also
from the water, gas meters or other.
EMS allows a complete, in-depth analysis of the network quality thanks to the measurement of the harmonic
distortion r(20th order) of the voltage and current signals.
Configuration Models
Type Class CT Neut. CT Supply Dig. I/O Dig. In type COM1 COM2 Exp. Mem.
EMS-96 1
1A
5A
None
Present
90÷250
Vac/dc
24÷48
Vac/dc
2DO
4DO+4DI
6DO+2DI
8DO
24Vac/dc
48Vac/dc
115 Vac/dc
230 Vac/dc
None
RS485
None
RS485
Profibus
Ethernet*
None
EMS-96H 1
0.5S
0.2S
RS485 None
Present EMS-96-ETH RS485
Ethernet**
Ethernet**+ WiFi
* Modbus TCP/IP
** Modbus TCP/IP and Web server
Software Options
Model Timeband & Preset Harmonics & SAG Energy Graphics & Log
EMS-96 to enable to enable to enable
EMS-96H enabled enabled enabled
EMS-96-ETH enabled enabled enabled
To enable one or more options it’s necessary to input a code (Enable option item) in the instrument setup. If
the options are requested at the moment of the order the code is already loaded and showed on the
instrument report.
After the installation, to enable one or more options it is necessary to request the code to the seller, sending
the serial number. The seller will deliver the new code to load in the instrument setup.

User Manual
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EMS-96
FDE N°
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Measures Table
Parameters System L1 L2 L3 Min-Max
Relative
Min-Max
Absolute Average Max Demand
Voltage L-N X X X X X X X X
Voltage L-L X X X X X X
Current X X X X X X X X
Power Factor X X X X X X X X
Cos  X X X X X X X X
Tan  X X X X X X X X
Active Power X X X X X X X X
Reactive Power X X X X X X X X
Apparent Power X X X X X X X X
Frequency X X X X X X X X
THD Voltage X X X X X X
THD Current X X X X X X
Harmonics X* X* X*
Active Energy OUT X X X X
Reactive Energy IN X X X X
Reactive Energy OUT X X X X
Apparent Energy X X X X
Expected Power X X X X
SAG (X)* (X)* (X)*
(X): only the selected electric line
*: option

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EMS-96
FDE N°
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INSTALLATION
Warning for the user
Read carefully the instructions/indications contained in this manual before installing and using the instrument.
The instrument described in this manual is intended for use by properly trained staff only.
Safety
This device has been manufactured and tested in compliance with EN 61010-2 standards. In order to
maintain these conditions and to ensure safe operation, the person must comply with the indications and
markings contained in the manual.
When the device is received, before beginning installation, check that it's O.K. And it has not suffered any
damage during transport.
When starting installation, make sure that the operating voltage and mains voltage are compatible with the
device instructions. The device power supply must not be earthed.
Maintenance and/or repair must be carried out only by qualified and authorized personnel. If there is ever the
suspicious that, that there is a lack of safety, during operation, the device must be disconnected and cautions
taken against accidental use.
Operation is no longer safe when:
 The instrument doesn't work.
 The measured values are obviously wrong or unreasonable.
 There is visible damage.
 After serious damage incurred during transport.
 After a storage under unfavourable conditions.
During normal operation of the devices, hazardous voltages at its terminals and in particular on the terminals
of voltage and current transformers connected and on the terminals of the digital input and outputs.
The secondary circuits of the voltage and current transformers are capable of generating hazardous voltages
and currents when their primary circuit is powered.
Follow the standard safety precautions when performing any installation or service (such as making sure that
the power supply is disconnected, disconnecting the fuses of the transformer voltage, short-circuiting the
secondary of current transformer etc.).
Do not use the instrument in situations where failure may cause injury or death, or generate sufficient energy
to cause a fire.
The instrument is equipped with a fuse on the power supply type: 5x20mm 1A 250V time lag.

User Manual
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EMS-96
FDE N°
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CONNECTIONS
Auxiliary power supply
The instrument has an auxiliary supply for the logic and interfaces. This is useful to maintain active the logic
also in absence of power of monitored lines.
In alternative, it is possible to take the power from the network under test, using the phase and neutral for a 4-
wire network, phase to phase in a 3-wire system without neutral or from a VT in a MT application. In this case
the instrument will be switched off in absence of power of monitored lines.
The instrument can be supplied in two different configurations of power supply:
Standard Version
90÷250 Vac/dc
Option Version
24÷48 Vac/dc
1
2
AUX
ETHERNET PORT
VOLTAGE INPUTS
CURRENT INPUTS
SERIAL PORTS
POWER SUPPLY
A2
B2
C2
A1
B1
C1
S2
S1
S2
S1
S2
S1
S2
S1
N
VL3
VL2
VL1
Do1-
Do1+
Do2-
Do2+
Do3-
Do3+
Do4-
Do4+
Di1-
Di1+
Di2-
Di2+
Di3-
Di3+
Di4-
Di4+
Do8-
Do8+
Do7-
Do7+
Do6-
Do6+
Do5-
Do5+
SERVICE
In
I3
I2
I1
AUX
DIGITAL I/O
COM1-RS485 COM2-RS485
1
2

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Voltage Inputs
 4 terminals are available for direct connection to 3 phase network with neutral. In case of a 3 phase
balanced system without neutral, or non distributed neutral to leave terminal N free.
 3 inputs, range 30 ÷ 400Vac phase to neutral - 52 to 693Vac phase to phase (see Technical Features
table for details); over these values must used the external voltage transformers.
 Frequency range: 50/60Hz.
 Permanent overvoltage allowed: 480Vac phase to neutral - 830VAC phase-phase.
 Overvoltage category: II (permanent installations).
 Pollution degree: 2 (normally non-conductive, conductive condensation temporary).
 Input resistance: > 1.8MΩ.
 Load (Burden) for each voltage input: 0.09VA.
Note: To detect the frequency of the network the terminal VL1 must be always connected.
N
VL3
VL2
VL1

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Current Inputs
Current measurements can be performed by connecting the terminals of Current inputs.
All current inputs are isolated by current transformers with different ranges depending on the model of the
instrument.
They can be interfaced directly to the line to be monitored or to be connected to the output of external CT
with higher range.
The connections to the lines to be monitored are described in chapter “Wiring diagrams”.
With neutral current input option installed, the instrument allows the direct measurement of neutral current in
the same way described for the line inputs.
NOTE:
It is essential to observe the correct phase sequence, not invert the connections between the
phases of the current inputs and voltage (i.e. the CT placed on L1 phase must absolutely match
at I1 Current and VL1 voltage). Do not invert the terminals S1 and S2 of the CT because the
measurement of power factors, and the powers would no longer be trusted.
Version 5A
Three-phase current inputs isolated by 3 internal current transformers.
Nominal current range 50mA÷5A; over these values must be used the external current transformers.
Load (Burden) for each current input: 0.0009VA max.
Version 1A
Three-phase current inputs isolated by 3 internal current transformers.
Nominal current range 10mA÷1A; over these values must be used the external current transformers.
Load (Burden) for each current input: 0.0009VA max.
Neutral Current: the nominal current range according with CT version (5A or 1A).
S2
S1
S2
S1
S2
S1
S2
S1
In
I3
I1
I2

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EMS-96
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Serial ports (option)
Depending on the version, the instrument can be equipped with one or two isolated half duplex RS485 serial
interface.
Two options are available:
 1 serial port RS485
 2 serial ports RS485
With these options the instrument can communicate with the external with the Modbus protocol. The two
ports are independent and they can perform the same operations. The presence of the serial port RS485
allows the software update.
COM1
A1: +data
B1: -data
C1: common
COM2
A2: +data
B2: -data
C2: common
A2
B2
C2
A1
B1
C1
COM2-RS485COM1-RS485

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EMS-96
FDE N°
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Digital Outputs
2 pulse / state digital outputs are available on the device.
In option it is possible to have others pulse / state digital outputs or simply others state digital outputs.
The configuration available will be shown in the following pages.
The technical features are:
 Compliance with CEI EN62053-31 (Class A devices).
 Maximum of digital output available: 8
 Isolation level: 4KVRMS for 60 sec.
 Output type: Photo-MOS (solid state); a “non-closed Output” is comparable to an open contact.
 Output voltage/current: 10÷300VDC 150mAmax; 12÷250VAC 150mAmax
 RON = 8Ωtyp. (12ΩMAX).
“Pulse” output mode:
 TON_min 30ms; TOFF_min 30ms.
 Pulse output period adjustable from 60ms to 1000ms.
 Pulse polarity programmable (active closed or active open).
 Programmable pulse “weight”.
Output protections: varistor for transients; current limiting to be provided externally.
Do1-
Do1+
Do2-
Do2+

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Digital Inputs (option)
The EMS can be equipped with isolated Digital Inputs.
The Digital Inputs are available only with the relative option.
The technical feature are:
 number of Digital Input: 2 or 4 depending on the option version;
 Input Configuration: independent inputs (no common pins);
 isolation level 3.5KVRMS for 60 sec;
 Voltage Input Range: 24, 48, 115, 230Vac/dc (only one of the available options to choose in the
order);
 Nominal Input Current: max 5mA each @ all nominal voltages;
 Input Filter: Digital;
 Basic Operation Mode: pulse counter, status, change of time-band;
 TON_min 30ms; TOFF_min 30ms;
The Voltage input must be defined before to order the instrument.
Digital I/O options
It’s possible to add 3 optional configurations of digital I/O at the standard configuration:
 4 digital inputs and 2 digital outputs
 6 digital outputs
 2 digital inputs, 4 digital outputs
4 digital inputs and 2 digital outputs (option)
With this option the instrument will be equipped with:
 4 digital inputs
 4 pulse / state digital outputs.
Di1-
Di1+
Di2-
Di2+
Di3-
Di3+
Di4-
Di4+
Do3-
Do3+
Do4-
Do4+
Do1-
Do1+
Do2-
Do2+

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EMS-96
FDE N°
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6 digital outputs (option)
With this option the instrument will be equipped with 8 digital outputs divided in the following way:
 4 digital outputs.
 4 pulse / state digital outputs.
Do8-
Do8+
Do7-
Do7+
Do6-
Do6+
Do5-
Do5+
Do3-
Do3+
Do4-
Do4+
Do1-
Do1+
Do2-
Do2+

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EMS-96
FDE N°
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2 digital inputs, 4 digital outputs (option)
With this option the instrument will be equipped with:
 2 digital inputs.
 2 digital outputs
 4 pulse / state digital outputs.
Di1-
Di1+
Di2-
Di2+
Do6-
Do6+
Do5-
Do5+
Do3-
Do3+
Do4-
Do4+
Do1-
Do1+
Do2-
Do2+

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EMS-96
FDE N°
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WIRING DIAGRAMS
In case of connection in a 3
phase network (without
neutral or with neutral not
distributed) don’t connect
the N terminal.
This connection with only 2
CT allows to measure
accurately the three-phase
currents.
Three-Phase, 4-Wires Y Configuration
LOAD
EMS
P2
S2
N
L1
L2
L3
P1
S1
S1 S1
S2 S2 S2
S1
N
VL3 VL2
VL1
In I3
I2
S1
S2
I1
P1
S1
P1
S1
P1
S1
Three-Phase, 3-Wires Configuration. ARON insertion (2CT) 
LOAD
EMS
P2
S2
L1
L2
L3
S1 S1
S2 S2 S2
S1
N
VL3 VL2
VL1
In I3
I2
S1
S2
I1
P1
S1
P1
S1

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This connection can be used
with distributed and equal
loads.
It is possible to measure the
current on one phase (using
only one CT). The
unmonitored phase currents
are mathematically
calculated.
The measurement of neutral
current is optional.
In presence of multiple
balanced loads in a three-
phase network, the
instrument calculates the
electrical parameters
checking a single phase
current for each load,
allowing to limit the number
of CT used.
Three-Phase, balanced loads, 4-Wires Configuration
LOAD
EMS
P2
S2
N
L1
L2
L3
P1
S1
S1 S1
S2 S2 S2
S1
N
VL3 VL2
VL1
In I3
I2
S1
S2
I1
Three-Phase, multiple balanced loads, 4-Wires Configuration
LOAD
EMS
N
L1
L2
L3
S1 S1
S2 S2 S2
S1
N
VL3 VL2
VL1
In I3
I2
S1
S2
I1
LOAD
N
L1
L2
L3
LOAD
N
L1
L2
L3
P2
S2
P1
S1
P2
S2
P1
S1
P2
S2
P1
S1

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It is mandatory to connect
the current input I1 and
voltage input VL1.
The electrical parameters are
measured for individual
loads.
For correct calculation of
power and energy, is
mandatory to connect the
voltage inputs related to the
used current inputs.
Single-Phase, 2-Wires Configuration
LOAD
EMS
P2
S2
N
L1
P1
S1
S1 S1
S2 S2 S2
S1
N
VL3 VL2
VL1
In I3
I2
S1
S2
I1
Single-Phase, 3 multiple loads in the same network, 2-Wires Configuration
LOAD
EMS
N
L1
S1 S1
S2 S2 S2
S1
N
VL3 VL2
VL1
In I3
I2
S1
S2
I1
LOAD
N
L1
LOAD
N
L1
P2
S2
P1
S1
P2
S2
P1
S1
P2
S2
P1
S1

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If necessary to apply a
multiplier factor “K” to
adapt the measure
read, please consider
that only one K for
voltages and only one
K for currents can be
set.
Multiple Single-Phase, 3 multiple loads in 3 different networks, 6-Wires Configuration
LOAD
EMS
N1
L1
S1 S1
S2 S2 S2
S1
N
VL3 VL2
VL1
In I3
I2
S1
S2
I1
LOAD
N2
L2
LOAD
N3
L3
P2
S2
P1
S1
P2
S2
P1
S1
P2
S2
P1
S1
Two-Phase, 3-Wires Configuration
LOAD
EMS
P2
S2
N
L1
P1
S1
S1 S1
S2 S2 S2
S1
N
VL3 VL2
VL1
In I3
I2
S1
S2
I1
L2
P2
S2
P1
S1

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Digital Input
The AC/DC digital input are independent (no common pin) and can be wired without polarity care.
Digital Output
The PhotoMOS have behaviour identical to a mechanical contact which closes. Therefore, there are not
problems with the polarity.
Serial Port
The instrument communicates via a asynchronous isolated serial interface in the standard RS485 Half-duplex
that allows a connection in a network up to 247 nodes. This allows to implement a communication network
between different instruments and a master unit (data concentrator) for a detailed control of an electrical
installation.
The maximum length of the line depends on variables such as the transmission rate and characteristics of the
cables used. It’s recommend to use a shielded twisted pair cable with low attenuation, with a minimum
section of 0.36mm2 (22AWG) and capacity of less than 60pF / m.
The maximum length is about 1200m. For longer distances it’s need to use signal amplifiers (repeaters). High
networking length and/or where environments are electrically "noisy", it requires the use of two termination
resistors (at the beginning and end of the line) of 100-120Ω. The use of repeaters is also necessary in the
case of networks with more than 32 nodes.
At each repeater can be connected 32 units.
Please note that complex networks with large number of nodes cause a slower speed of response by the
instruments.
Connection type: half-duplex (2 wires + common).
Isolation: opto-couples (3750 Vrms min.).
In the figure is showed a connection with a not shielded cable. In the shielded cable connection it’s necessary
to connect the shield to COM terminal.
Digital I/O and Serial communication
EMS
Di1- Di2-
Do2-
Do1+
Di1+ Di2+
Do2+
Do1-
24, 48,
115, 230 Vac/dc
depending on the version
LOAD fuse
V
LOAD fuse
150mA max 150mA max
12÷230
Vac/dc
12÷230
Vac/dc
C1
A1
A2
B1
C2
B2
Master Controller
or
Concentrator
or
Other instrument
COMA+ B-
V VV