SDMS-MMS Installation manual
Documentation

SDMS-MMS Installation manual

Table of Contents
1 Safety & personnel qualifications.............................................................3
2 Introduction & approvals............................................................................5
3 Technical data, connection & labeling ....................................................6
4 Installation guidelines.............................................................................. 12
5 Power supply and earthing..................................................................... 14
6 Communication via Ethernet ................................................................. 16
7 Input and output signals ......................................................................... 17

The materials are owned by Elmodis sp. z o.o. with its seat in Kraków and are protected by law. The
materials constitute the company’s secret and they are addressed only to the recipient of this document.
Without the express written consent of Elmodis sp. z o.o., an offer/materials cannot be disclosed, used,
copied, reproduced, distributed and made available by third parties in whole or in part.

Safety & personnel qualifications

1 Safety & personnel qualifications
 Information marked with this sign is important from the point of view of safe operation
and reliable operation of the device. Failure to comply with them may result in permanent
disability or death.

 This manual contains important information for safe operation. It is essential that you
read it before you connect / start up the device.

 Prior to operation, perform an external visual inspection. If any damage is found, thedevice should be withdrawn from use and have it repaired at the manufacturer's service
centre. ELMODIS shall not be liable for any damage resulting from use of a damaged
device.

 Any attempts made by the user to repair or tamper with the device will void the warranty.
ELMODIS accepts no liability for damage resulting from use of the device altered in thismanner. Any repairs should be made at the manufacturer's service centre.

 If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.

 Use only approved accessories!

The terminals of the device carry a voltage hazardous to health and life. All works
related to installation and configuration of the device must be performed withdisconnected power supply voltage. Installation can be performed only by persons
with appropriate authorization.

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Safety & personnel qualifications

Keep away from heat sources!

Protect against moisture! Do not immerse in liquids!

1.1 Personnel qualifications
The following table shows the special qualifications that are required for personnel using themodule described in this manual.
Electrician

Network administrator

Trained employee

Installation
Commissioning
MaintenanceTroubleshooting

1.2 Contact
Elmodis Sp. z o.o.
Aleja Pokoju 1
31-548 Kraków, Poland
Email: biuro@elmodis.com
Web: http://www.elmodis.com

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Introduction & approvals

2 Introduction & approvals
Electro module is a part of Elmodis system used to monitor electric induction motor-suppliedmachines. Measurements of physical quantities used by the system (current, voltage, key phasor)
are connected to the module. The device is used for collecting and processing measurement
data, communicating with other SDMS modules and communicating on-line with Elmodis
application located in the Cloud.

2.1 Basic features• Direct voltage measurements with the use of voltage dividers• Connection of motor current measurement through Rogowski coils• Connection of key phasor signal (inductive or photoelectric sensor)• Key phasor outlets for synchronization of measurements with other devices• Ethernet interface used for the communication with the Internet and other SDMS modules• 1 relay output• Temperature measurement by 1-Wire standard sensors• 24 VDC supply• Installation on DIN TS35 rail

2.2 Approvals
 Compliance with European Standards:• 2014/35/UE (LVD)• 2014/30/UE (EMC)

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Technical data, connection & labeling

3 Technical data, connection & labeling
3.1 Technical data
Measurement category

Nominal measurement voltage

Measurement current range

300V CATIII
Three-phase four-wire systems (ULN/ULL) : 277/480 V
Three-phase three-wire systems unearthed (ULL) : 480 V
3.5 kA (RMS) for coils with sensitivity 100mV/kA @ 50 Hz
3 kA (RMS) for coils with sensitivity 120mV/kA @ 60 Hz

Accuracy

1.5% per measurement range

Temperature measurement

up to 8 1-WIRE sensors (DS18B20+ standard)

Relay output (SELV)

1 A / 30 VDC (resistive)

Phase marker

NPN/PNP sensors support

Power supply (SELV)

24 VDCPower consumption<6W

Ethernet

10/100 Mbit

Operating temperature-20 ÷ 50 [°C]

Storage temperature-20 ÷ 85 [°C]

Operating humidity range

5% do 90% without condensation

Pollution degree

2

Maximum altitude2000 mMounting method

TH 35 rail (acc. to PN-EN 60715 standard)

Dimensions

37 x 115 x 125 [mm]Weight0.3 kgCopyright by ELMODIS

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Technical data, connection & labeling

3.2 LED signalling
SymbolCasingback-light

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StatusDescription

BLINKING

Failure-free operation of the system

STEADY

Service required

STEADY

Stable communication with the Cloud

STEADY

No communication with the cloud

BLINKING

No Internet access

BLINKING

Collecting electrical measurements

STEADYNo electrical measurements

BLINKING

Correct operation of the key phasor

STEADY

Key phasor high

BLINKING

Temperature measurement by sensors

BLINKING

No response from a sensor

BLINKING

Communication

BLINKING

No communication

STEADY

Machine OK

BLINKING

Module identification

BLINKING

Machine-related alarm

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Technical data, connection & labeling

3.3 Connectors and labeling
The following figures show views of the module containing the connectors with their markings
and the nameplate. The first pins of the connectors are marked with a dot.

Fig 1. View of the connectors from the front and bottom

Fig 2. Nameplate

The nameplate contains the information necessary to identify the module and to register it on the
ELMODIS portal. An example of the nameplate on the photo above shows the type of module
along with the serial number which at the same time informs about the date of production of thedevice - SNO: 15/09/2021 (15th SDMS-MMS module manufactured in September 2021)

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Technical data, connection & labeling

3.4 Wiring diagram
The following figure shows the basic measurement scheme.

Fig 3. Basic measurement scheme using Rogowski coils

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Technical data, connection & labeling

The figure below shows the connection of the power supply and optional sensors and signals
such as:• F.1~3 - phase marker sensor (NPN/PNP)• F.4~6 - 1-WIRE temperature measurement sensor (DS18B20+)• F.7~8 - binary output (normally open relay contact - NO)• H,I - measurement synchronization input / output signal

Fig 4. Extended diagram of connections to the module connectors

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Technical data, connection & labeling

3.5 Dimensions

Fig 5. SDMS-MMS module dimensions [mm]Copyright by ELMODIS

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Installation guidelines

4 Installation guidelines
4.1 Guidelines for installing the module• The module is intended for indoor use.
• The module is designed to be DIN rail mounted in enclosed cabinets/housing and the like,that afford protection against fire hazards, environmental conditions and mechanicalimpact. It is recommended that the control cabinet or enclosure in which the module is tobe mounted provides IP54 protection.
• The temperature in the control cabinet or enclosure where the module is mounted must
not exceed the maximum operating temperature of the device. Therefore it isrecommended that cabinets/housings should be properly ventilated/air conditioned.
• The module must be mounted at least 1 cm away from other devices and components,
whose temperature exceeds the maximum temperature of operation of the module.
• The module must be mounted at least 25 cm away from inverters.
• The DIN rail on which the module is mounted should be earthed.

4.2 External wiring• Material of power and measuring cables: copper.
• Minimum working temperature of external wires: 75°C.
• Minimum working voltage of voltage measurement wires connected to the plug A: 500V.
• Minimum working voltage for other wires: 300V.
• Before connecting the wires to the plugs, they should be properly prepared by crimping thesleeve endings on them.
• During installation, follow the instructions regarding cable cross sections and types.
• Cables shall be marked.
• The cable colours, marking shall be included in the documentation.

4.3 Installation requirements• Voltage measurement lines must be connected in accordance with standards in order toavoid malfunctions in the installation and, above all, to exclude the possibility of danger tolife and health of personnel.
• Accident prevention regulations must be observed during installation, startup,
maintenance and repair work.
• Emergency stop devices and functions must be effective - see the relevant standards (e.g.
DIN EN 418).
• To eliminate potential sources of interference, the installation must be carried out
according to EMC guidelines.

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Installation guidelines• The norms, standards, guidelines and local regulations in force at the time of installationmust be observed.
• All attached sensors must provide the required isolation from dangerous voltages.
• At least simple drawing, showing connections on the terminal in the cabinet where thedevices are connected, should be prepared.

4.4 Additional safety requirements• Proper types of fuses for power supply and voltage measurement.
• Mechanical cable clamping.
• Use of mechanical shielding for cables and equipment.
• The wiring, components and devices used should have higher current and voltage ratings
than expected for the installation.
• The cabinet shall be securely fastened using appropriate materials and installation
techniques.

 PROHIBITED• Use of yellow-green cables for purposes other than protecting (earthing)equipment and mechanical guards.
• Mechanical bending, pressing of cables.
• Using cables with a lower operating voltage than required.
• Leave the cables unattached.
• Expose cables without additional protection outside the mechanically protectedarea.
• Use fuses with different values than those required for safety requirements.

4.5 Measurement quality• Connected cable shield.
• Proper direction of the current coils (direction of the arrow on the coil).
• Well-fixed coils, centered.
• Do not run the coil cables in parallel with the motor voltage/power cables.

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Power supply and earthing

5 Power supply and earthing Use an isolated power supply with the specifications listed below.

5.1 Parameters
Power supply type

SELV

Supply voltage

24V DC ± 5%

Maximum power required

6W

Recommended power supply

TRACO POWER TPC030-124

Cross section of the connection cables

0.5-2.5 [mm2] (20-13 AWG)

Tightening torque

0.5 Nm (5.0 Lb-In)

5.2 Connection
The table shows the pin description of the power connector E shown in the following figure.
Pin of E connector

Marking

E.1

+24V

E.2

GND

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Power supply and earthing

Fig 6. 24 VDC power supply

5.3 Earthing
The device is earted via a DIN rail mounting bracket. Earth resistance of the DIN rail must not behigher than 1 Ω.

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Communication via Ethernet

6 Communication via Ethernet
The SDMS-MMS module communicates with the cloud and other devices via a 10/100 Mbps
Ethernet interface (RJ-45 connector marked with the letter C).

Fig 7. Ethernet connection

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Input and output signals

7 Input and output signals
7.1 Voltage measurement
7.1.1 Parameters
Measurement category

300V CATIII
3-phase 4-wire systems: 277/480 V

Nominal measurement voltage
3-phase 3-wire systems unearthed: 480 V
Cross section of the connection cables

0.5-2.5 [mm2] (20-13 AWG)

Tightening torque

0.5 Nm (5.0 Lb-In)

7.1.2 Connection
 Before starting work, switch off the power supply to the motor and protect it from being
switched on again while work is being carried out, then ensure that there is no voltage
at the terminals.
• It is recommended to use fuse disconnectors (~100mA) or overcurrent circuit breakers toprotect the unit. Their use will also allow safe and efficient servicing of the device withoutswitching off the power supply to the monitored machine in case it is necessary to
disconnect or replace the device.
• Pay attention to the correct sequence of phase voltages connected to the voltage
measurement plug (A).

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Input and output signals

Fig 8. Voltage measurement connection

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Input and output signals

7.2 Current measurement
7.2.1 Rogowski coils
For current measurement, UL Listed Rogowski coils with ratings suitable for the application
should be used. Refer to the table below for recommended Rogowski coils with their parameters:
Manufacturer

ALGODUE ELETTRONICA

Series

MFC150-UI

Type

Splitted, flexible

Coil length

30 cm

Sensor internal diameter

7 cm

Cord diameter

8.3 mmNominal output rate

100 mV/kA @ 50 Hz
120 mV/kA @ 60 Hz

7.2.2 Connection and installation of coils
Cross section of the connection cables

0.2-1.3 [mm2] (24-16 AWG)

Tightening torque

0.34Nm (3.0 Lb-In)

Requirements• The Rogowski coils may not be installed in equipment where they exceed 75% of the wiring
space of any cross-sectional area within the equipment.
• Restrict installation of Rogowski coil in an area where it would block ventilation openings.
• Restrict installation of Rogowski coil in an area of breaker arc venting.
• Not suitable for Class 2 wiring methods. Not intended for connection to Class 2
equipment.
• Secure Rogowski coil and route conductors so that the conductors do not directly contact
live terminals or bus.

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Input and output signals• WARNING: To reduce the risk of electric shock, always open or disconnect circuit frompower-distribution system (or service) or building before installing or servicing Rogowski
coils.
• The wires and shields of individual coils should be connected to three multilevelinstallation terminal blocks (i.e. WAGO 2003-6646) installed on the same earthed DIN railas the SDMS-MMS module. The terminal blocks should be installed directly next to themodule. Coil shields should be connected to the terminal blocks contact which is internallyconnected to the DIN rail holder of the terminal blocks. The connection between the threemultilevel installation terminal blocks and the SDMS-MMS module should be made with
one shortest possible and flexible cable with twisted wire pairs (3x2 - one pair for wires of
one coil).

Recommendations• The coils are recommended to be mounted on the last section of the supply cable between
the motor and the nearest protection or control device (contactor, circuit breaker, inverter,
soft start, etc.).
• If the coil leads are too long they should be shortened.
• The coils should not be mounted near a noise source such as an inverter.
• It is recommended to run the coil wires at least 10 cm away from the phase wires.

Connection table between the coil wires and the SDMS-MMS module:
Phase coil

Coil wire

Pin of plug B

BK

7

WH

6

BK

5

WH

4

BK

3

WH

2

L1

L2

L3

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Input and output signals

Fig 9. Connection of Rogowski coils

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Input and output signals

Mounting the coil on the wire
 Before starting work, make sure that the motor phase wires are not live.
• Note the arrow on the coil. This determines the direction from the power source to themotor (load).
• The coil should be attached to the wire using two plastic zip ties.
• The wire must be on the opposite side to the coil latch.
• Ensure that the coil latch is correctly clipped and twisted so that there is no air gap.

Fig 10. Mounting the Rogowski coil on a wire

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Input and output signals

7.3 Phase marker
It is possible to connect a speed sensor to the device. Such measurement can be performed in
two ways:• Inductively - Hall sensor, which reacts to the presence of a marker in the form of anelement made of magnetic material placed on the shaft or other rotary element of themachine.
• Optically - an optical sensor that responds to the presence of a reflective element placedon the shaft or other rotating element of the machine. The sensor is equipped with asource of such light.

7.3.1 Parameters
Sensor supply voltage

20V DC - 24V DC

Maximum sensor supply current

25mA
NPN

Supported sensor configuration

NC / Dark-on

Frequency range

0-25kHz

Recommended inductive sensor model

E2B-M18KN16-WP-C2-2M

Recommended optical sensor model

E3FB-DN22

Cross section of the connection cables

0.2-1.3 [mm2] (24-16 AWG)

Tightening torque

0.34Nm (3.0 Lb-In)

7.3.2 Connection and installation
Pin of F connector

Marking

Description

F.1

+24V

Sensor power output

F.2

PMI

Phase marker signal input

F.3

GND

GroundCopyright by ELMODIS

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Input and output signals

Electrical installation of sensors
Inductive sensor (E2B-M18KN16-WP-C2-2M)

Fig 11. Connection of inductive sensor• The cable shield, if any, should be connected to GND.
• The cable connecting the sensor with the device should be as short as possible.
• The cable connecting the sensor with the device must be led away from electromagnetic
interference and power supply cables (especially if an inverter is used).

Fig 12. Mating the plug for the inductive sensor

1. Twist the shield tightly and crimp it into the sleeve along with the GND wire.
2. Put heat shrink tubing over the wire.
3. Hide the fourth wire of the inductive sensor (if any) under the heat-shrinkable tube.
4. We recommend the following cable for shrinking: LAPP CABEL: Li2YCY-TP; 2x2x0.34mm2.

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Input and output signals

Optical sensor (E3FB-DN22)

Fig 13. Connection of the optical sensor• The cable shield, if any, should be connected to GND.
• The cable connecting the sensor with the device should be as short as possible.
• The cable connecting the sensor with the device is to be led away from electromagnetic
interference and power supply cables (especially if an inverter is used).
• Adjust the sensitivity of the sensor.

Fig 14. Mating the plug for the optical sensor

1. Twist the shield tightly and crimp it into the sleeve along with the GND wire.
2. Place a heat shrink tube over the wire.
3. The fourth wire of the sensor should be connected to GND in order to obtain "Dark ON"
configuration.
4. We recommend the following cable for shrinking: LAPP CABEL: Li2YCY-TP; 2x2x0.34mm2.

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Input and output signals

Mechanical installation of sensors
Installation example for inductive sensor

Fig 15. Mounting the inductive sensor

1. Use the recommended sensor or a sensor that meets the given parameters.
2. The sensor is to be mounted on a structure, on a firmly fixed element. Mounting must be
resistant to vibrations and nuts must be secured against spontaneous unscrewing (e.g. byusing serrated washers or anaerobic glue).
3. If the sensor does not have a potentiometer for sensitivity adjustment, adjust its range of
operation by setting the distance X, i.e. the tripping distance of the sensor.
4. The sensor activator must be a metal element. Its width should be from 5 to 20% of thecircumference of the element on which the speed is measured. It is recommended to fix
the activator mechanically, however, due to the difficulty of making it, it is permissible to fix
it chemically. For small drives where the mass of the actuator is significant and may cause
unbalance it is recommended to use an optical sensor.

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Input and output signals

Example of optical sensor mounting

Fig 16. Mounting the optical sensor

1. Use the recommended sensor or a sensor that meets the specified parameters.
2. Adjustment knob for sensor sensitivity. Adjust the sensor according to the sensitivity
adjustment procedure described below.
3. Mount the sensor to a structure, firmly attached. The mounting must be resistant tovibrations and the nuts must be secured against spontaneous unscrewing (e.g. by using
serrated washers or anaerobic glue). It is recommended that the cover should also act asa barrier to light, particularly from discharge lamps, to avoid interference.
4. The reflector should be glued to a clean surface and its width should be from 5 to 20% of
the circumference of the element on which the speed is measured. It is recommended touse a special self-adhesive reflective tape for optical sensors.

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Input and output signals

Procedure for adjusting sensor sensitivity• Mount the sensor in the target position.
• Set the sensitivity to the lowest.
• In the case of the E3FB-DN22 sensor, this is the extreme left position of thepotentiometer. Both LEDs (orange and green) should be lit.
• Position the shaft (or other rotating element on which a marker is placed) so that themarker is within the range of the sensor.
• Gradually increase the sensitivity until the sensor output changes.
• For the E3FB-DN22 this is indicated by the green LED only.
• Experimentally verify the change of state with simultaneous rotation of the shaft (or otherelement on which the marker is placed). The state should be:• high, when the marker is within the range of the sensor• low, when the marker is outside the range of the sensor
Changes in the sensor's output signal should be visible only when the shaft rotates and when amarker "appears" in the sensor's range or "disappears" from it. So there should be exactly twochanges per revolution.
For the E3FB-DN22, watch the LEDs while turning the shaft very slowly. When the marker is inrange only the green LED should be lit. On the contrary, both should be lit. In the transient state,
the diodes may go out for a while.

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Input and output signals

7.4 1-WIRE temperature sensor interface
The module has the ability to measure temperature via sensors in the 1-WIRE communication
standard. Depending on the sensor housing, it is possible to measure the ambient temperature,surface temperature or the medium flowing in the pipelines.

7.4.1 Parameters
Number of supported sensors

8

Supported sensor type

DS18B20

Sensor operating voltage

5V DC

Cross section of the connection cables

0.2-1.3 [mm2] (24-16 AWG)

Tightening torque

0.34Nm (3.0 Lb-In)

7.4.2 Connection
The table shows the description of the pins on the F connector intended to support 1-WIRE
sensors.
Pin of F connector

Designation

Description

F.4

V1W

Sensor supply voltage 5V DC

F.5

SIG

1-WIRE signal

F.6

GND

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Input and output signals

The figure below shows the wiring diagram of the 1-WIRE sensor to the module.

Fig 17. 1-WIRE sensor connection

Notes:• Avoid laying cables and sensors close to power cables.
• It is recommended that sensor cables are laid in comb trays or other cable sheaths.
• The sensors and wires should be mounted in such a way that they cannot be pulled out or
damaged mechanically.

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Input and output signals

7.5 Two-state output (relay)
The device is equipped with a two-state output in the form of relay contacts. The main purpose ofthis functionality is to signal the ‘warning’/'alarm' status. The relay has contacts brought out tothe connector:• NO - normally open contact• COMMON - common contact

7.5.1 Parameters
Maximum contact voltage

30V DC

Maximum load

1A / 30V DC (resistive)

Cross section of the connection cables

0.2-1.3 [mm2] (24-16 AWG)

Tightening torque

0.34Nm (3.0 Lb-In)

7.5.2 Connection
The table shows the description of the pins on connector F to which the relay contacts areconnected.
Pin of F connector

Designation

Description

F.7

DO-NO

'Normally Open' relay contact

F.8

DO-COMMON'Common' contact of the relay

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Input and output signals

The figure below shows the internal structure of the relay contacts (together with pin markings ofthe F connector to which they are connected) in a situation when the relay coil is not driven (e.g.
when the module is not powered).

Fig 18. Internal construction of the relay contacts with pin markings on the F connector

The figure below shows an example application using a two-state output.

Fig 19. Example application using relay output

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Input and output signals

7.6 Synchronisation signal input/output interface
The device is equipped with an interface enabling synchronisation of measurements (timewaveforms) in multiple devices. The synchronisation signal is a low voltage differential signal. On
two identical RJ-9 (4P4C) connectors the same synchronisation bus is brought out, which allows
for a convenient connection of subsequent devices. The source of the synchronisation signal may
be one of the devices or a phase marker connected to one of the devices.

7.6.1 Parameters
Signal standard

LVDS

Maximum signal voltage difference

3.3V ± 10%

7.6.2 Connection
The table shows the description of the pins on the H and I connectors to which thesynchronisation signal bus is brought out.
Pin connector H and I

Designation

Description

H.1 & I.1

A+

Non-inverting input/output

H.2 & I.2

B-

Inverting input/output

Notes:For longer connections between devices it is recommended to use a cable with a twisted pair.

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Input and output signals

Fig 20. Marking of the synchronisation bus pins on RJ-9 sockets

Fig 21. Synchronization bus pinout on RJ-9 plug

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Input and output signals

Fig 22. Circuit diagram when the synchronisation source is a phase marker sensor

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Input and output signals

Fig 23. Connection diagram when the synchronisation source is one of the SDMS-MMS devices

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