Lika Rotacod EM58 MT Series User manual

User's guide
EM58 MT
HS58 MT
HM58 MT
MODBUS TCP/IP
•EM58 27-bit multitur e coder for sta dard purposes
•HS58 18-bit si gletur e coder for high precisio dema ds
•HM58 30-bit multitur e coder for high e d applicatio s
•M12 co ectors
•Complies with the “Modbus over TCP/IP” protocol
Suitable for the followi g models:
•EM58, EM58S MT
•EMC58, EMC59, EMC60 MT
•HS58, HS58S MT
•HSC58, HSC59, HSC60 MT
•HM58, HM58S MT
•HMC58, HMC59, HMC60 MT
Ge eral Co te ts
Prelimi ary i formatio 8
1 - Safety summary 17
2 - Ide tificatio 19
3 - Mou ti g i structio s 20
4 - Electrical co ectio s 25
5 - Quick refere ce 33
6 - MODBUS® TCP/IP i terface 34
Lika Electro ic • Tel. [phone] • i [email protected] • www.lika.biz
Smart e coders & actuators

This publication was produced by Lika Electronic s.r.l. 2019. All rights reserved. Tutti i diritti riservati. Alle Rechte vorbehalten. Todos los
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This document and information contained herein are the property of Lika Electronic s.r.l. and shall not be reproduced in whole or in
part without prior written approval of Lika Electronic s.r.l. Translation, reproduction and total or partial modification (photostat copies,
film and microfilm included and any other means) are forbidden without written authorisation of Lika Electronic s.r.l.
The information herein is subject to change without notice and should not be construed as a commitment by Lika Electronic s.r.l. Lika
Electronic s.r.l. reserves the right to make all modifications at any moments and without forewarning.
This manual is periodically reviewed and revised. As required we suggest checking if a new or updated edition of this document is
available at Lika Electronic s.r.l.'s website. Lika Electronic s.r.l. assumes no responsibility for any errors or omissions in this document.
Critical evaluation of this manual by the user is welcomed. Your comments assist us in preparation of future documentation, in order
to make it as clear and complete as possible. Please send an e-mail to the following address [email protected] for submitting your
comments, suggestions and criticisms.

Ge eral co te ts
User's guide............................................................................................................................................................................................1
Ge eral co te ts.............................................................................................................................................................................3
Subject i dex.....................................................................................................................................................................................6
Typographic a d ico ographic co ve tio s...................................................................................................................7
Prelimi ary i formatio .............................................................................................................................................................8
Glossary of MODBUS TCP/IP terms......................................................................................................................................9
List of abbreviatio s...................................................................................................................................................................15
Refere ces........................................................................................................................................................................................16
1 Safety summary........................................................................................................................................................................17
1.1 Safety........................................................................................................................................................................................17
1.2 Electrical safety....................................................................................................................................................................17
1.3 Mechanical safety...............................................................................................................................................................18
2 Ide tificatio ..............................................................................................................................................................................19
3 Mou ti g i structio s..........................................................................................................................................................20
3.1 Solid shaft encoders...........................................................................................................................................................20
3.1.1. Customary installation.............................................................................................................................................20
3.1.2 Installation using fixing clamps (code LKM-386).........................................................................................21
3.1.3 Installation using a mounting bell (code PF4256)........................................................................................21
3.2 Hollow shaft encoders......................................................................................................................................................22
3.2.1 EMC58, HSC58, HMC58............................................................................................................................................22
3.2.2 EMC59, HSC59, HMC59............................................................................................................................................23
3.2.3 EMC60, HSC60, HMC60............................................................................................................................................24
4 Electrical co ectio s...........................................................................................................................................................25
4.1 M12 connectors...................................................................................................................................................................25
4.1.1 PWR Power supply connector (Figure 1)..........................................................................................................25
4.1.2 P1 Port 1 and P2 Port 2 connectors (Figure 1)..............................................................................................26
4.1.3 Network configuration: topologies, cables, hubs, switches - Recommendations..........................26
4.2 Ground connection............................................................................................................................................................26
4.3 Connection of the shield..................................................................................................................................................27
4.4 MAC address and IP address...........................................................................................................................................27
4.5 Setting the IP address and the network configuration parameters.............................................................28
4.6 Line Termination..................................................................................................................................................................29
4.7 Diagnostic LEDs (Figure 1)...............................................................................................................................................29
4.8 DIP A: Resetting the network configuration parameters to the factory values......................................30
4.9 Connection cap (Figure 2)...............................................................................................................................................32
5 Quick refere ce.........................................................................................................................................................................33
5.1 Getting started.....................................................................................................................................................................33
6 MODBUS® TCP/IP i terface................................................................................................................................................34
6.1 MODBUS protocol principles..........................................................................................................................................34
6.2 General MODBUS frame description..........................................................................................................................35
6.3 MODBUS on TCP/IP Application Data Unit..............................................................................................................35
6.4 MODBUS PDUs.....................................................................................................................................................................37
6.5 Function codes.....................................................................................................................................................................38
6.5.1 Implemented function codes.................................................................................................................................39
03 Read Holdi g Registers......................................................................................................................................39
04 Read I put Registers............................................................................................................................................41

06 Write Si gle Register...........................................................................................................................................43
16 Write Multiple Registers...................................................................................................................................45
6.6 Encoder states......................................................................................................................................................................50
WAIT_PROCESS............................................................................................................................................................50
ERROR...............................................................................................................................................................................50
PROCESS_ACTIVE........................................................................................................................................................50
EXCEPTION......................................................................................................................................................................50
7 Programmi g parameters...................................................................................................................................................51
7.1 Parameters available..........................................................................................................................................................51
7.1.1 Holding Register parameters.................................................................................................................................51
Watchdog timeout [82]..............................................................................................................................................52
Curre t positio [95-96]...........................................................................................................................................52
Speed value [97-98].....................................................................................................................................................52
Status word [99-100]..................................................................................................................................................53
Cou ts per revolutio [101-102].........................................................................................................................53
Total Resolutio [103-104].....................................................................................................................................54
Preset value [105-106]...............................................................................................................................................56
Speed format [107-108]............................................................................................................................................58
Operati g parameters [109-110].........................................................................................................................58
Scali g fu ctio ..........................................................................................................................................................58
Code seque ce.............................................................................................................................................................59
Co trol Word [111-112]............................................................................................................................................60
Save parameters.........................................................................................................................................................60
Restore default parameters.................................................................................................................................60
Perform cou ti g preset........................................................................................................................................61
Si gletur resolutio [113-114]..........................................................................................................................62
Number of revolutio s [115-116].......................................................................................................................62
Supported alarms [117-118]..................................................................................................................................63
Supported war i gs [119-120].............................................................................................................................63
Alarm registers [121-122]........................................................................................................................................64
Machi e data ot valid..........................................................................................................................................64
Setti g data ot valid.............................................................................................................................................64
Flash memory error...................................................................................................................................................64
War i gs register [123-124]..................................................................................................................................65
Wro g parameters list [125-126].......................................................................................................................65
Cou ts per revolutio error.................................................................................................................................65
Total resolutio error...............................................................................................................................................65
Preset value error.......................................................................................................................................................65
Offset value error.......................................................................................................................................................65
Offset value [127-128]...............................................................................................................................................66
DSC Firmware Versio [129-130]........................................................................................................................66
PCB Hardware Versio [131-132]........................................................................................................................66
7.1.2 Input Register parameters......................................................................................................................................68
Curre t positio [1-2].................................................................................................................................................68
Speed value [3-4]...........................................................................................................................................................68
Status word [5-6]...........................................................................................................................................................68
Scali g fu ctio ..............................................................................................................................................................69
Code seque ce..................................................................................................................................................................69
Alarm......................................................................................................................................................................................69

7.2 Exception response and codes.......................................................................................................................................71
8 I tegrated web server...........................................................................................................................................................74
8.1 Integrated web server – Preliminary information................................................................................................74
8.2 Web server Home page.....................................................................................................................................................75
8.3 Encoder position and speed............................................................................................................................................76
8.3.1 Specific notes on using Internet Explorer........................................................................................................77
8.4 Encoder information (MODBUS registers)................................................................................................................78
8.5 Setting the Preset value...................................................................................................................................................79
8.6 Setting the registers...........................................................................................................................................................81
8.7 Firmware upgrade...............................................................................................................................................................85
8.8 Network configuration.....................................................................................................................................................91
9 Programmi g examples.......................................................................................................................................................95
9.1 Using the 03 Read Holding Registers function code...........................................................................................95
9.2 Using the 04 Read Input Registers function code................................................................................................96
9.3 Using the 06 Write Single Register function code...............................................................................................97
9.4 Using the 16 Write Multiple Registers function code.........................................................................................98
10 Default parameters list...................................................................................................................................................100

Subject i dex
A
Alarm.....................................................................................69
Alarm registers [121-122]............................................64
C
Code sequence...........................................................59, 69
Control Word [111-112]...............................................60
Counts per revolution [101-102]..............................53
Counts per revolution error.........................................65
Current position [1-2]....................................................68
Current position [95-96]...............................................52
D
DSC Firmware Version [129-130]..............................66
E
ERROR...................................................................................50
EXCEPTION..........................................................................50
F
Flash memory error.........................................................64
M
Machine data not valid.................................................64
N
Number of revolutions [115-116]............................62
O
Offset value [127-128]..................................................66
Offset value error.............................................................65
Operating parameters [109-110]..............................58
P
PCB Hardware Version [131-132].............................66
Perform counting preset...............................................61
Preset value [105-106]..................................................56
Preset value error.............................................................65
PROCESS_ACTIVE.............................................................50
R
Restore default parameters.........................................60
S
Save parameters...............................................................60
Scaling function........................................................58, 69
Setting data not valid....................................................64
Singleturn resolution [113-114]................................62
Speed format [107-108]...............................................58
Speed value [3-4].............................................................68
Speed value [97-98]........................................................52
Status word [5-6].............................................................68
Status word [99-100].....................................................53
Supported alarms [117-118].......................................63
Supported warnings [119-120].................................63
T
Total Resolution [103-104]..........................................54
Total resolution error......................................................65
W
WAIT_PROCESS.................................................................50
Warnings register [123-124].......................................65
Watchdog timeout [82].................................................52
Wrong parameters list [125-126].............................65

Typographic a d ico ographic co ve tio s
In this guide, to make it easier to understand and read the text the following typographic and
iconographic conventions are used:
•parameters and objects both of the device and the interface are coloured in GREEN;
•alarms are coloured in RED;
•states are coloured in FUCSIA.
When scrolling through the text some icons can be found on the side of the page: they are expressly
designed to highlight the parts of the text which are of great interest and significance for the user.
Sometimes they are used to warn against dangers or potential sources of danger arising from the use of
the device. You are advised to follow strictly the instructions given in this guide in order to guarantee
the safety of the user and ensure the performance of the device. In this guide the following symbols are
used:
This icon, followed by the word WARNING, is meant to highlight the parts of the
text where information of great significance for the user can be found: user must
pay the greatest attention to them! Instructions must be followed strictly in order
to guarantee the safety of the user and a correct use of the device. Failure to heed
a warning or comply with instructions could lead to personal injury and/or damage
to the unit or other equipment.
This icon, followed by the word NOTE, is meant to highlight the parts of the text
where important notes needful for a correct and reliable use of the device can be
found. User must pay attention to them! Failure to comply with instructions could
cause the equipment to be set wrongly: hence a faulty and improper working of
the device could be the consequence.
This icon is meant to highlight the parts of the text where suggestions useful for
making it easier to set the device and optimize performance and reliability can be
found. Sometimes this symbol is followed by the word EXAMPLE when instructions
for setting parameters are accompanied by examples to clarify the explanation.

Prelimi ary i formatio
This guide is designed to provide the most complete information the operator needs to correctly and
safely install and operate the following rotary encoders equipped with MODBUS TCP/IP i terface:
EMxxx13/16384MT-xx (multitur e coder, resolutio 13 +14 bits)
HSxxx18/MT-xx (si gletur e coder, resolutio 18 bits)
HMxxx16/16384MT-xx (multitur e coder, resolutio 16 +14 bits)
For technical specifications please refer to the product datasheet.
To make it easier to read the text, this guide can be divided into two main sections.
In the first section general information concerning the safety, the mechanical installation and the
electrical connection as well as tips for setting up and running properly and efficiently the unit are
provided.
While in the second section, entitled MODBUS TCP/IP I terface, both general and specific information
is given on the MODBUS interface. In this section the interface features and the registers implemented in
the unit are fully described.

Glossary of MODBUS TCP/IP terms
MODBUS TCP/IP, like many other networking systems, has a set of unique terminology. Table below
contains a few of the technical terms used in this guide to describe the MODBUS TCP/IP interface. They
are listed in alphabetical order.
ADU Application Data Unit, it is the data frame of the MODBUS
protocol. It takes the form of a 7 byte header (MBAP Header:
transaction identifier + protocol identifier + length field +
unit identifier), and the Protocol Data Unit (PDU: function
code + data). The MODBUS TCP/IP ADU is inserted into the
data field of a standard TCP frame and sent via TCP on
registered port 502, which is specifically reserved for MODBUS
applications. Thus, this packet is encapsulated by the data
frames imposed by the TCP/IP stack of protocols (TCP/IP/MAC)
before being transmitted onto the network. Refer to page 35.
Applicatio Process The Application Process is the task on the Application Layer.
Applicatio protocol MODBUS is an application protocol or messaging structure
that defines rules for organizing and interpreting data
independent of the data transmission medium. TCP/IP only
guarantees that application messages are transferred between
the devices over the Ethernet Local-Area Network (LAN), it
does not guaranty that the devices actually understand or
interoperate with one another. For MODBUS TCP/IP, this
capability is provided by the application layer protocol
MODBUS.
Broadcast address An IP address with a host portion that is all ones.
Bus A bus is a communication medium connecting several nodes.
Data can be transferred via serial or parallel circuits, that is,
via electrical conductors or fiber optic.
Clie t A Client is any network device that sends data requests to
servers.
MODBUS TCP/IP follows the Client/Server model. MODBUS
Masters are referred to as Clients, while MODBUS Slaves are
Servers.
Data e codi g MODBUS uses a ‘big-Endian’ representation for addresses and
data items. This means that when a numerical quantity larger
than a single byte is transmitted, the most significant byte is
sent first. Refer to page 35.
Determi ism It is the ability of the communication protocol to guaranty
that a message is sent or received in a finite and predictable
amount of time.
Determi istic
Commu icatio
It describes a communication process whose timing behaviour
can be predicted exactly. I.e. the time when a message reaches

the recipient is predictable.
DHCP DHCP (Dynamic Host Configuration Protocol) is a standardized
network protocol used on Internet Protocol (IP) networks for
dynamically distributing network configuration parameters,
such as IP addresses for interfaces and services. A DHCP server
assigns dynamic IP addresses at startup, and the addresses
might change over time. DHCP servers on the network
acknowledge the request by offering the client an IP address.
The client acknowledges the first offer it receives, and the
DHCP server in turn tells the client that it has succeeded in
leasing the IP address for a specified amount of time.
DNS DNS (Domain Name System) is a hierarchical distributed
naming system for computers, services, or any resource
connected to the Internet or a private network. DNS is a host
name resolution service that you can use to determine the IP
address of a computer from its host name. This lets users work
with host names, such as www.example.com, rather than an IP
address, such as 192.168.5.102 or 192.168.12.68.
E capsulatio The term “encapsulation” refers to the action of packing
(embedding) the MODBUS message into the TCP container, the
IP container, and the MAC container.
Exceptio code Code to be returned by Slaves in the event of problems. All
exceptions are signalled by adding 0x80 to the function code
of the request. Refer to page 71.
Exceptio respo se MODBUS operates according to the common client/server
(Master/Slave) model: the Client (Master) sends a request
telegram (service request) to the Server (Slave), and the Server
replies with a response telegram. If the Server cannot process
a request, it will instead return a error function code
(exception response) that is the original function code plus
80H (i.e. with its most significant bit set to 1). Refer to pages
37 and 71.
Fu ctio code MODBUS is a request/reply protocol and offers services
specified by function codes. The function code is sent from a
Client to the Server and indicates which kind of action the
Server must perform. MODBUS function codes are elements of
MODBUS request/reply PDUs.
The function code field of a MODBUS data unit is coded in one
byte. Valid codes are in the range of 1 ... 255 decimal (the
range 128 – 255 is reserved and used for exception responses).
Function code "0" is not valid. Lika encoders only implement
public function codes. Refer to page 38.
Holdi g register In the MODBUS data model, a Holding register is the output
data. A Holding register has a 16-bit quantity, is alterable by
an application program, and allows either read-write or read-
only access. Refer to page 51.
Host A computer or other device on a TCP/IP network.

IEEE 1588 This standard defines a protocol enabling synchronisation of
clocks in distributed networked devices (e.g. connected via
Ethernet).
I put register In the MODBUS data model, an Input register is the input
data. An Input register has a 16-bit quantity, is provided by an
I/O system, and allows read-only access. Refer to page 68.
I ter et The global collection of networks that are connected together
and share a common range of IP addresses.
I terNIC The organization responsible for administration of IP addresses
on the Internet.
IP The network protocol used for sending network packets over a
TCP/IP network or the Internet.
IP Address The IP Address is a 32-bit number that uniquely identifies a
host (computer or other device, such as a printer or router) on
a TCP/IP network. IP addresses are normally expressed in
dotted-decimal format, with four numbers separated by
periods, such as 192.168.123.132. An IP address has two parts.
The first part of an IP address is used as a network address, the
last part as a host address. If you take the example
192.168.123.132 and divide it into these two parts you get the
following: 192.168.123. = Network; .132 = Host. Or:
192.168.123.0 = network address; 0.0.0.132 = host address.
Refer to page 27.
Isochro ous Pertains to processes that require timing coordination to be
successful. Isochronous data transfer ensures that data flows
continuously and at a steady rate in close timing with the
ability of connected devices.
Legacy Ether et Ethernet as standardised in IEEE 802.3 (non-deterministic
operation in non-time-critical environments).
MAC address The MAC address is an identifier unique worldwide consisting
of two parts: the first 3 bytes are the manufacturer ID and are
provided by IEE standard authority; the last three bytes
represent a consecutive number of the manufacturer. Refer to
page 27.
Master A Master is any network device that sends data requests to
Slaves.
MBAP Header The MBAP header (MODBUS Application Header) is a 7-byte
header added to the start of the message and is used on
TCP/IP to identify the MODBUS Application Data Unit. It has
the following data:
•Transaction Identifier: 2 bytes set by the Client to
uniquely identify each request. These bytes are echoed
by the Server since its responses may not be received
in the same order as the requests.
•Protocol Identifier: 2 bytes set by the Client, always =
00 00
•Length: 2 bytes identifying the number of bytes in the

message to follow.
•Unit Identifier: 1 byte set by the Client and echoed by
the Server for identification of a remote slave
connected on a serial line or on other buses.
Refer to page 35.
Media Access Co trol
(MAC)
One of the sub-layers of the Data Link Layer that controls who
gets access to the medium to send a message.
Message The MODBUS messaging service provides a Client/Server
communication between devices connected on the Ethernet
TCP/IP network. The Client / Server model is based on four
types of messages:
•MODBUS Request
•MODBUS Confirmation
•MODBUS Indication
•MODBUS Response
The MODBUS messaging services are used for information
exchange.
MODBUS Co firmatio A MODBUS Confirmation is the Response Message received on
the Client side.
MODBUS I dicatio A MODBUS Indication is the Request message received on the
Server side.
MODBUS Request A MODBUS Request is the message sent on the network by the
Client to initiate a transaction. Refer to page 37.
MODBUS Respo se A MODBUS Response is the Response message sent by the
Server. Refer to page 37.
Network Network is a group of computers on a single physical network
segment; otherwise it is an IP network address range that is
allocated by a system administrator.
Network address An IP address with a host portion that is all zeros.
Octet An 8-bit number, 4 of which comprise a 32-bit IP address.
They have a range of 00000000-11111111 that correspond to
the decimal values 0- 255.
Packet A unit of data passed over a TCP/IP network or wide area
network.
PDU The Protocol Data Unit (PDU) is the MODBUS function code
and data field in their original form. It is packed together with
the MBAP Header to form the Application Data Unit (ADU).
The MODBUS protocol defines three PDUs. They are:
•MODBUS Request PDU, mb_req_pdu
•MODBUS Response PDU, mb_rsp_pdu
•MODBUS Exception Response PDU,
mb_excep_rsp_pdu
Refer to page 37.
Port It is an address that is used locally at the transport layer (on
one node) and identifies the source and destination of the

packet inside the same node. Port numbers are divided
between well-known port numbers (0-1023), registered user
port numbers (1024-49151) and private-dynamic port
numbers (49152-65535). For TCP, port number 0 is reserved
and cannot be used. Ports allow TCP/IP to multiplex and
demultiplex a sequence if IP datagrams that need to go to
many different (simultaneous) application processes. MODBUS
TCP/IP uses well-known port 502 to listen and receive
MODBUS messages over Ethernet.
Read Holdi g Registers
(03, 0003hex)
This function code is used to READ the contents of a
contiguous block of holding registers in a remote device; in
other words, it allows to read the values set ina group of work
parameters placed in order. Refer to page 39.
Read I put Register (04,
0004hex)
This function code is used to READ from 1 to 125 contiguous
input registers in a remote device; in other words, it allows to
read some result values and state / alarm messages in a
remote device. Refer to page 41.
Real-time Real-time means that a system processes external events
within a defined time. If the reaction of a system is
predictable, one speaks of a deterministic system. The general
requirements for real-time are therefore: deterministic
response and defined response time.
Register MODBUS functions operate on memory registers to configure,
monitor, and control device I/O. Refer to page 51.
Router A device that passes network traffic between different IP
networks.
Server A Server is any program that awaits data requests to be sent
to it. Servers do no initiate contacts with Clients, but only
respond to them.
MODBUS TCP/IP follows the Client/Server model. MODBUS
Masters are referred to as clients, while MODBUS Slaves are
servers.
Service request It is the MODBUS Request, i.e. the message sent on the
network by the Client to initiate a transaction.
Slave A Slave is any program that awaits data requests to be sent to
it. Slaves do no initiate contacts with Masters, but only
respond to them.
Sub et Mask A 32-bit number used to distinguish the network and host
portions of an IP address. In other terms, it is used by the
TCP/IP protocol to determine whether a host is on the local
subnet or on a remote network.
Sub et or Sub etwork A smaller network created by dividing a larger network into
equal parts.
TCP/IP Used broadly, the set of protocols, standards and utilities
commonly used on the Internet and large networks.
The Ethernet system is designed solely to carry data. It is
comparable to a highway as a system for transporting goods

and passengers. The data is actually transported by protocols.
This is comparable to cars and commercial vehicles
transporting passengers and goods on the highway.
Tasks handled by the basic Transmission Control Protocol (TCP)
and Internet Protocol (IP) (abbreviated to TCP/IP):
1. The sender splits the data into a sequence of packets.
2. The packets are transported over the Ethernet to the
correct recipient.
3. The recipient reassembles the data packets in the
correct order.
4. Faulty packets are sent again until the recipient
acknowledges that they have been transferred
successfully.
Topology Network structure. Commonly used structures:
•Line topology;
•Ring topology;
•Star topology;
•Tree topology.
Refer to page 26.
Tra smissio rate Data transfer rate (in bps). Refer to page 26.
Wide area etwork
(WAN)
A large network that is a collection of smaller networks
separated by routers. The Internet is an example of a very
large WAN.
Write Multiple Registers
(16, 0010hex)
This function code is used to WRITE a block of contiguous
registers (1 to 123 registers) in a remote device. Refer to page
45.
Write Si gle Register (06,
0006hex)
This function code is used to WRITE a single holding register in
a remote device. Refer to page 43.

List of abbreviatio s
Table below contains a list of abbreviations (in alphabetical order) which may be used in this guide to
describe the MODBUS TCP/IP interface.
ADU Application Data Unit
HDLC High level Data Link Control
HMI Human Machine Interface
I/O Input/Output
IETF Internet Engineering Task Force
IP Internet Protocol
MAC Media Access Control
MB MODBUS Protocol
MBAP MODBUS Application Protocol
MBAP header MODBUS Application Header
PDU Protocol Data Unit
PLC Programmable Logic Controller
TCP Transmission Control Protocol

Refere ces
[1] MODBUS Application Protocol Specification, Version V1.1b3
[2] MODBUS messaging on TCP/IP implementation guide, Version V1.0b
[3] RFC 791, Internet Protocol, Sep81 DARPA
[4] RFC 1122 Requirements for Internet Hosts -- Communication Layers
[5] IEC 61918 Industrial communication networks – Installation of communication networks in
industrial premises
[6] IEC 61784-5-13 Industrial communication networks – Profiles – Part 5-13: Installation of
fieldbuses – Installation profiles for CPF 13

EM58 – HS58 - HM58 MODBUS TCP/IP
1 Safety summary
1.1 Safety
Always adhere to the professional safety and accident prevention regulations
applicable to your country during device installation and operation;
installation and maintenance operations have to be carried out by qualified
personnel only, with power supply disconnected and stationary mechanical
parts;
device must be used only for the purpose appropriate to its design: use for
purposes other than those for which it has been designed could result in
serious personal and/or the environment damage;
high current, voltage and moving mechanical parts can cause serious or fatal
injury;
warning! Do not use in explosive or flammable areas;
failure to comply with these precautions or with specific warnings elsewhere
in this manual violates safety standards of design, manufacture, and
intended use of the equipment;
Lika Electronic assumes no liability for the customer's failure to comply with
these requirements.
1.2 Electrical safety
Turn off power supply before connecting the device;
connect according to explanation in the “4 - Electrical connections” section
on page 25;
in compliance with the 2014/30/EU norm on electromagnetic
compatibility, following precautions must be taken:
- before handling and installing, discharge electrical charge from
your body and tools which may come in touch with the device;
- power supply must be stabilized without noise, install EMC filters on device
power supply if needed;
- always use shielded cables (twisted pair cables whenever possible);
- avoid cables runs longer than necessary;
- avoid running the signal cable near high voltage power cables;
- mount the device as far as possible from any capacitive or inductive noise
source, shield the device from noise source if needed;
- to guarantee a correct working of the device, avoid using strong magnets on
or near by the unit;
- minimize noise by connecting the shield and/or the connector housing
and/or the frame to ground. Make sure that ground is not affected by noise.
The connection point to ground can be situated both on the device side and
on user’s side. The best solution to minimize the interference must be carried
out by the user. Provide the ground connection as close as possible to the
encoder. We suggest using the ground point provided in the cap, use one
TCEI M3 x 6 cylindrical head screw with two tooth lock washers.
MAN EM58_HS58_HM58 MT E 1.1.odt Safety summary 17 of 104

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1.3 Mecha ical safety
Install the device following strictly the information in the “3 - Mounting
instructions” section on page 20;
mechanical installation has to be carried out with stationary mechanical
parts;
do not disassemble the encoder;
do not tool the encoder or its shaft;
delicate electronic equipment: handle with care; do not subject the device
and the shaft to knocks or shocks;
respect the environmental characteristics declared by manufacturer
unit with solid shaft: in order to guarantee maximum reliability over time of
mechanical parts, we recommend a flexible coupling to be installed to
connect the encoder and user's shaft; make sure the misalignment tolerances
of the flexible coupling are respected;
unit with hollow shaft: the encoder can be mounted directly on a shaft
whose diameter has to respect the technical characteristics specified in the
purchase order and clamped by means of the collar and, when requested, the
anti-rotation pin.
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2 Ide tificatio
Device can be identified through the order code, the serial umber and the
MAC address printed on the label applied to its body. Information is listed in
the delivery document too. Please always quote the order code, the serial
number and the MAC address when reaching Lika Electronic for purchasing
spare parts or needing assistance. For any information on the technical
characteristics of the product refer to the technical catalogue.
War i g: encoders having order code ending with “/Sxxx” may
have mechanical and electrical characteristics different from
standard and be supplied with additional documentation for special
connections (Technical info).
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3 Mou ti g i structio s
WARNING
Installation and maintenance operations have to be carried out by qualified
personnel only, with power supply disconnected and mechanical parts
absolutely in stop.
For any information on the mechanical data and the electrical characteristics of
the encoder please refer to the technical catalogue.
3.1 Solid shaft e coders
•Mount the flexible coupling 1 on the encoder shaft;
•fix the encoder to the flange 2 (or to the mounting bell) by means of screws
3;
•secure the flange 2 to the support (or the mounting bell to the motor);
•mount the flexible coupling 1 on the motor shaft;
•make sure the misalignment tolerances of the flexible coupling 1 are
respected.
3.1.1. Customary i stallatio
a [mm] b [mm] c [mm] d [mm]
EM58, HS58, HM58 - 42 50 F7 4
EM58S, HS58S, HM58S 36 H7 48 - -
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