SKF IMx-16Plus User manual

Copyright © 2018 by SKF Group
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SKF Multilog On-line
System IMx-16Plus
User Manual
Part Number 15V-090-00081-100 Revision Letter A
Read this manual carefully before using the product. Failure
to follow the instructions and safety precautions in this manual can
result in serious injury, damage to the product or incorrect
readings. Keep this manual in a safe location for future reference.

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User Manual
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Patets: U“ ,, • U“ ,, • U“ ,, • U“ ,, • U“ ,, •
U“ ,, • U“ ,, • U“ ,, • U“ ,, • U“ ,, • U“ ,, •
U“ ,, • U“ ,, • U“ ,, • U“ ,, • U“ ,, • U“ ,, •
U“ ,, • U“ ,, • U“ ,, • U“ ,, • U“ ,, • U“ ,, •
U“ ,, • U“ ,, • WO//
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Table of contents
1Product description .......................................................................9
1.1 SKF Multilog On-line System IMx-16Plus ......................................................9
1.2 System communications...............................................................................10
1.2.1 Mobile (LTE/GSM) data.................................................................10
1.2.2 Local network RJ45 or Wi-Fi module.............................................10
1.2.3 Bluetooth........................................................................................11
1.2.4 Modbus interfacing to external systems........................................11
1.3 Outer cabinet (optional)................................................................................12
1.4 External antenna for LTE/GSM/Wi-fi (optional)............................................13
1.5 GPS module (optional) .................................................................................13
2Installation and operating instructions......................................15
2.1 Introduction...................................................................................................15
2.2 Mounting the SKF Multilog On-line System IMx-16Plus..............................16
2.3 Power requirements......................................................................................18
2.4 Site cabling considerations...........................................................................20
2.4.1 Sensor cabling ...............................................................................20
2.4.2 Ethernet cabling.............................................................................21
2.4.3 RS485 Modbus cabling..................................................................21
2.5 SKF Multilog On-line System IMx-16Plus ....................................................21
2.5.1 Introduction ....................................................................................21
2.5.2 Network configuration....................................................................21
2.5.3 Ethernet connection.......................................................................22
2.5.4 LTE/GSM (mobile) data configuration ...........................................22
2.5.5 RS485 Modbus connections..........................................................23
2.5.6 LED indicators................................................................................24
2.5.7 Connecting accelerometers (A1 to A16)........................................25
2.5.8 Connecting voltage sources (A1 to A16).......................................25
2.5.9 Connecting 4–20 mA signals (A1 to A16)......................................25
2.5.10 Connecting PT1000 sensors (A9 to A16)......................................26
2.5.11 Connecting tacho/speed signals (D1 to D4)..................................27
2.5.12 Connecting relays ..........................................................................30
2.5.13 System commissioning and security..............................................31
2.5.14 IMx-16Plus Stand-alone mode ......................................................32
2.5.15 Time synchronisation.....................................................................32

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2.5.16 Network data transfer.....................................................................33
2.5.17 Storage capacity ............................................................................34
2.5.18 Run cycle mode .............................................................................35
2.6 Hardware Maintenance.................................................................................35
2.6.1 Performance over Time .................................................................35
2.7 Mobile data/Wi-Fi antenna (optional)............................................................35
2.8 GPS module (optional) .................................................................................36
2.9 Troubleshooting............................................................................................37
2.9.1 Introduction ....................................................................................37
2.9.2 Rescue Button................................................................................37
2.9.3 Sensor circuits................................................................................38
2.9.4 Relay driver outputs.......................................................................45
2.9.5 RS485 Modbus RTU communications...........................................46
2.9.6 Connections to Monitor..................................................................47
3Product specifications.................................................................49
3.1 Product labelling ...........................................................................................49
3.2 SKF Multilog On-line System IMx-16Plus ....................................................50
3.2.1 Environmental................................................................................50
3.2.2 Power.............................................................................................50
3.2.3 Analogue inputs .............................................................................50
3.2.4 Digital inputs...................................................................................51
3.2.5 Digital outputs ................................................................................51
3.2.6 Analogue measurement.................................................................51
3.2.7 Digital measurement......................................................................52
3.2.8 Signal processing...........................................................................52
3.2.9 Interfaces........................................................................................52
3.2.10 Storage capacity ............................................................................53
3.2.11 Data processing memory...............................................................53
3.2.12 Certifications ..................................................................................53
3.2.13 Quality control................................................................................53
3.3 Connector details..........................................................................................54
3.3.1 IMx-16Plus top end cap.................................................................54
3.3.2 IMx-16Plus bottom end cap...........................................................55
3.4 Enclosure and cabinet mechanical drawings...............................................56
3.4.1 IMx-16Plus enclosure ....................................................................56
3.4.2 IMx-16Plus IP65 cabinets (optional)..............................................56
3.5 Mobile data / Wi-Fi antenna (optional) .........................................................58

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3.6 GPS module (optional) .................................................................................59
4Electrical waste ............................................................................61
Appendix A Limited Warranty...........................................................63

PRODUCT DESCRIPTION
SKF Multilog On-line System IMx-16Plus
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1 Product description
1.1 SKF Multilog On-line System IMx-16Plus
The IMx-16Plus is a latest generation ‘IMx’and though the same physical size as an
IMx-8, has extended channel count and interfacing capabilities. For example, it can
support 16 analogue inputs (eight constant current accelerometers or voltage inputs
and a further eight that in addition have, PT1000 compatibility for temperature
monitoring).
An overview of these extended capabilities is shown in Figure 1 and details of the
specific features and capabilities follow.
Figure 1 SKF Multilog IMx-16Plus typical connections overview
There are four digital inputs for speed, it is mobile data capable and has RS485 and
LAN interfaces. Note that mobile data and LAN (RJ45 or Wi-Fi) connectivity are all
alternative infrastructures to connect the IMx-16Plus to wider networks and cannot be
used simultaneously.
It is supplied with demountable terminals for digital I/O, RS485 and analogue sensor
wiring etc. as well as type specific connectors for some of the interfaces and antenna
connections. If required, the RS485 link can interface by Modbus RTU to an external
(optional) GPS module.
A Bluetooth dongle provides a convenient means of accessing the IMx-16Plus, from
the SKF Multilog IMx Manager app. This app is used for a SAT (Site Acceptance
Test), device network configuration and is the companion app if the IMx is used in
stand-alone mode. Note that user access must be pre-arranged, refer to section
2.5.13.
Optional IP rated cabinets are available, 3.4.2.

PRODUCT DESCRIPTION
System communications
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1.2 System communications
The communications setup or mode, determines how the IMx-16Plus will
communicate with the wider system. There are 3 alternative arrangements that can
be used:
•Server initiated (@Observer initiated communication)
•Client-Server (the IMx-16Plusis the initiator of the communication)
•Standalone (no connection to @Observer)
Whilst the first two are alternatives for @Observer/IMx communication, illustrated
diagrammatically in Figure 1, the Standalone option refers to operating the IMx-
16Plus independent of @Observer software and instead using the companion app, to
interact with the IMx. For standalone mode, refer also 2.5.14.
Whilst the different network possibilities (1.2.1 to 1.2.2 below) offer alternative
connection methods, there are limitations on the permissible combinations of
communication mode and network connection method:
1. Server initiated, requires a server installed on a local network (with RJ45 or
Wi-Fi connection).
2. Mobile data connectivity is only supported in Client-Server mode (device
initiated communications).
The choice between using a mobile data connection or a LAN connection (RJ45 or
Wi-Fi), is part of the IMx-16Plus configuration.
1.2.1 Mobile (LTE/GSM) data
A built-in module provides a mobile data connection (GPRS, LTE). It can work world-
wide and provides connectivity to @Observer software. Mobile data functionality
requires an activated SIM card or eSIM. An external antenna is required (1.4); two
LTE connectors are provided.
1.2.2 Local network RJ45 or Wi-Fi module
A built-in Wi-Fi module provides a Wi-Fi communication interface (2,4 GHz) so that,
where available, that can be used as the first stage of connectivity to @Observer
software, rather than a hard-wired LAN (RJ45) or the mobile (LTE/GSM) network.
Similarly to mobile data, an external antenna is required for Wi-Fi, the optional
antenna offered by SKF (1.4) fulfils both roles.

PRODUCT DESCRIPTION
System communications
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1.2.3 Bluetooth
As supplied, a Bluetooth dongle specifically configured by SKF is already mounted in
the IMx-16Plus USB Type-A port. Bluetooth is used for communication between the
IMx-16Plus and the SKF Multilog IMx Manager app. This is particularly useful when
the IMx-16Plus is in stand-alone and SAT mode (but works in all modes).
Important note:
1.2.4 Modbus interfacing to external systems
Modbus communication is a commonly used protocol for exchanging information
between systems, often from different suppliers or providers. The IMx-16Plus
supports both Modbus TCP/IP (Ethernet infrastructure) and Modbus RTU (2-wire
RS485 infrastructure), including some simultaneous use, refer Table 1.
Table 1 Allowable Modbus communication combinations
TCP Master
RTU Master
TCP Slave*
Supported
Supported
RTU Slave
Supported
Not supported
TCP Slave* + RTU Slave
Supported
Not supported
Notes:
*The IMx-16Plus can be a slave in multiple TCP/IP connections subject to the
following limitations:
•A maximum of 4 Modbus connections (master, slave, TCP/IP and RTU in
total)
oIf the IMx is a Modbus RTU slave on a bus with other slaves, this only
counts as one connection towards the above limitation as only one
master connects to it.
Master devices typically retrieve data from slave devices (and in the IMx this data is
written to 32 Modbus external channels). When configured as a master device, the
IMx-16Plus supports up to 4 slaves. The 32 available channels can be split/allocated
to specific slaves and can have different register mapping and byte/word ordering.
Multiple master usage and the writing of data to that IMx in slave mode, are both
Due to special configuration for its use with the IMx-16Plus, the specific
dongle provided by SKF must be used and this supports only Bluetooth v4.0 LE,
(Low Energy).

PRODUCT DESCRIPTION
Outer cabinet (optional)
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disallowed as in the IMx-16Plus the 32 Modbus external channels are allocated to
the single master.
The number of slaves supported is reduced by the number of other Modbus
connections, enabled, see earlier note.
When configured specifically as an RTU master to the optional GPS module slave
(1.5), (External Communication type ‘GPS50M’, rather than ‘Modbus’), @Observer
creates an appropriate Modbus and Modbus external channel configuration for the
GPS data transfer. For more information, refer to the SKF @ptitude Observer User
Manual, Revision Q or later.
The Modbus RTU 2-wire interface can only support one operational mode (either
Master or Slave).
Modbus TCP/IP can only be used if a LAN (rather than mobile data) is being used for
connection to @O or cloud systems and must use the same media/interface (RJ45 or
Wi-Fi).
For more information regarding Modbus capabilities, refer to "Modbus for SKF
Multilog On-line System IMx and SKF @ptitude Observer” and also the application
note “General Modbus Protocol Considerations for IMx Devices”.
1.3 Outer cabinet (optional)
Where the IMx-16Plus is not located in an existing cabinet, outer cabinets are
available, 3.4.2, to house it and any supporting electronics, provide cable gland areas
for sensor, antenna, the GPS and other cables.
The glands used with these enclosures should be chosen to maintain the cabinet IP
rating and be appropriate for the application and environment, cable type and site
practices.
The recommended cable glands sizes for an IMx-16Plus cabinet are M12 x 1,5mm,
M20 x 1,5mm and M25 x 1,5mm. The (pre-drilled) SKF cabinet, Figure 2, has two
entries for M25 x 1,5 glands, one entry for a M20 x 1,5mm gland and 14 entries for
M12 x 1,5mm glands. As supplied, all 17 cabinet entries are fitted with blind plugs.
It is not easy to make specific recommendations related to cable glands as it
depends heavily on the application and the site practices, regulations, sensor type
and so on.
In general, from a noise performance perspective it has been seen that noise levels
are often better if an EMC type cable gland (normally metal) is used, but then care
must be taken to:

PRODUCT DESCRIPTION
External antenna for LTE/GSM/Wi-fi (optional)
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•Avoid ground loops via the sensor cables by preferably connecting the shield
at the IMx-end.
•Ensure the metal/EMC cable gland has a good connection to the metal box
(nut or washer must penetrate the paint or coating on the box).
Important –To avoid ground loops, SKF recommends connecting the shield
only at the IMx-end.
If the application does not allow that type of gland, it is possible to use isolated
(normally plastic) cable glands, but then care must be taken to:
•Ensure shield grounding is performed in a way that avoids both EMC noise
and ground loops.
What to select for best performance (isolated plastic or EMC metal cable glands), is
very application specific and needs to be evaluated in each case by/together with the
customer.
Important - All unused cable openings must remain closed with blind plugs.
1.4 External antenna for LTE/GSM/Wi-fi (optional)
SKF offer an optional external antenna that supports both Wi-Fi and LTE connectivity
(noting that the mobile data and Wi-Fi interfaces cannot be used simultaneously).
The antenna is designed to be mounted externally on the cabinet and connects to
both LTE connections and the Wi-Fi connection. See section 3.5.
1.5 GPS module (optional)
An optional GPS module is available, see section 3.6. This has an integral antenna,
but the module itself must be fitted external to any IMx cabinet.
The IMx-16Plus can use position data to collate and associate with the condition
monitoring measurements. The GPS data is requested by the IMx-16Plus, acting as
a Modbus RTU master on the RS485, two wire serial interface.
Note that when configured for full GPS support in @Observer (position and other
measurement data stored together), only this single Modbus slave is supported (no
multiple slave support).

PRODUCT DESCRIPTION
GPS module
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Connections for the GPS module are available on the ‘top’ end cap of the IMx-
16Plus, refer section 2.8.

INSTALLATION AND OPERATING INSTRUCTIONS
Introduction
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2 Installation and operating instructions
2.1 Introduction
Before beginning an installation, it is important to assess and evaluate the location
where the system is to be installed and to plan how the installation should look after it
has been completed. Make a detailed layout of the equipment and note distances
between components and the networks to which it should connect. Specify the
configuration requirements of each interface, for example IP addresses and subnet
mask for LAN connections or intended Modbus RTU mode (slave or master).
Amongst other things, consider the lengths of all cables, their routing, where
electrical power for the unit can be sourced and any interfaces to the plant systems.
Good and thorough planning is the basis for a successful installation and system
implementation.
Important safety warnings:
In some countries, the installer must be certified to install equipment, such
as an IMx-16Plus.
Make sure that the power is disconnected before the installation begins.
Observe all site safety requirements including any that may be specific to
the machines or areas where the installation work is being carried out.

INSTALLATION AND OPERATING INSTRUCTIONS
Mounting the SKF Multilog On-line System IMx-16Plus
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2.2 Mounting the SKF Multilog On-line System IMx-16Plus
When selecting a location for the IMx-16Plus, including any outer cabinet, make sure
to consider the following aspects:
•Position it to minimise vibration and to keep clear of high voltage equipment.
•Avoid unnecessary exposure to radiant heat or strong magnetic fields.
•Choose a location convenient for cable routing, to and from the cabinet.
•With unobstructed access and clearance for opening the lid.
•Suitable for a cabinet of this size and weight.
•That will accommodate all the required fixing points.
Like the IMx-8, the IMx-16Plus has a blue, painted aluminium enclosure that is IP30
classified. To provide higher environmental protection, the IMx-16Plus should be
mounted inside a cabinet (an IP65 classified cabinet can be provided by SKF). When
using any outer cabinet, always use all the recommended fixings to mount and
secure it.
For the SKF IP65 classified cabinet all the needed brackets, screws and gaskets are
included. Refer section 3.4 and subsequent sections for the enclosure and cabinet
dimensions and fixing centres. When selecting a type of cable gland, parameters
such as IP-classification and cable shielding connection must be carefully considered
so as not to compromise the IP65 certification of the cabinet.
The IMx-16Plus is designed to be DIN rail mounted, Figure 2 below, shows an IMx-8
/ IMx-16Plus device DIN rail mounted in a SKF IP65 classified cabinet.

INSTALLATION AND OPERATING INSTRUCTIONS
Mounting the SKF Multilog On-line System IMx-16Plus
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Figure 2 IMx-8 / IMx-16Plus DIN rail mounted in IP65 cabinet
The IMx-16Plus is mounted using the DIN rail bracket attached to the rear face of the
device, Figure 3below.
Figure 3 IMx-8 / IMx-16Plus DIN rail mounting bracket
To mount it on the DIN rail, first angle and offer it to the rail so that it is hanging on
the upper part of the bracket and then rotate downwards and snap it in place with the
lower part of the bracket.

INSTALLATION AND OPERATING INSTRUCTIONS
Power requirements
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To dismount (remove any connectors/wiring), then snap the lower part of the bracket
from the DIN rail and lift it up a little. The IMx-16Plus is now free to be lifted away
from the DIN rail.
2.3 Power requirements
The SKF Multilog IMx-16Plus is designed to be powered from a 24 to 48 V DC
supply, typical power consumption 10 W. The supply to the device should be fused at
2 A, slow-blow, refer 3.2.2.
On the IMx-16Plus top cover, there are two sets of DC + and -, terminals. The
incoming DC supply for the IMx-16Plus, should be connected only to the lower set of
terminals, as highlighted in green, Figure 4:
Figure 4 Location of the IMx-16Plus, power terminals
The incoming DC supply is isolated from GND (chassis).
Refer also to the important safety warnings on the following page.
Note that (except in specific circumstances), the IMx-16Plus also supports PoE
(Power over Ethernet). This can be used as either a single or as a redundant power
source, refer 2.5.3 and 3.2.2.
SKF can supply a DIN rail mounting power supply under part number reference
CMON 4137. This provides a 24V DC output suitable for an IMx-8 or an IMx-16Plus
and has a wide-ranging AC/DC input, see 3.2.2.

INSTALLATION AND OPERATING INSTRUCTIONS
Power requirements
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Important safety warnings:
The system power supply must be provided with an appropriately
positioned, clearly labelled full pole isolator or switch that can be used to isolate
and lock-out power from the IMx-16Plus unit during installation, maintenance or
modification work. The switch must be labelled "IMx-16Plus” or similar, with clear
identification of which IMx, if multiple units are deployed. The On/Off position
must be clearly marked.
The supply scheme should also incorporate suitable fusing or circuit breakers.
To prevent a hazardous event, power cable return and positive wires must
be secured together with a cable tie (for example, a nylon cable tie CV-100K)
close to the power connections, at the IMx-16Plus unit.
Figure 5 Example of securing positive and return wires with a cable tie
To connect the IMx-16Plus to the DC power supply, use cable of the
following standard or better:
FKLK 3 x 1,5 mm2(16 AWG) or EKLK 3 x 1,5 mm2(16 AWG) or corresponding,
with minimum voltage requirement 300 V and temperature range of −40 to
+70 ºC (−40 to +158 °F).
The power supply cable must be properly fixed to prevent strain, twist or
movement. Always use an appropriate cable gland at entry to any outer
enclosure and cable trunking or similar within it.

INSTALLATION AND OPERATING INSTRUCTIONS
Site cabling considerations
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2.4 Site cabling considerations
When routing cabling to the IMx-16Plus or the protective cabinet:
•Route and secure them at regular intervals, to minimise cable vibration
•Keep clear of high voltage equipment, their cables or strong magnetic fields
•Avoid exposure to or protect against radiant heat
•Choose a cable routing, that doesn’t obstruct access to the IMx-16Plus
•Avoid cable and sensor locations that interfere with routine maintenance
For cable/wire ends, bootlace ferrules or cord end terminals are recommended. The
wire end should have a maximum cross section/gauge of 1,5 mm² / 16 AWG and an
insertion length of approximately 10 mm.
Important safety warnings and guidance:
2.4.1 Sensor cabling
The IMx-16Plus can connect to the following sensor types:
•Accelerometers (2-wire, constant current)
•Voltage output sensors (2-wire), including externally powered accelerometers
•4-20 mA outputs (2-wire), load resistor must be fitted at IMx input terminals
•PT1000, temperature sensors (2-wire)
•Speed sensors (2- or 3-wire)
If not otherwise specified (by a sensor supplier etc.) signal and similar wiring to the
IMx-16Plus should use shielded, twisted pair 2 x 0,5 mm2(FKAR-PG 1 x 2 x 0,50
DUE 4002 or equivalent), with minimum voltage requirement of 300 V.
Only remove any cabinet blind plugs where it is necessary to
accommodate a cable, an appropriate cable gland must then be used. Any
unused cable entries must remain closed off.
Refer also to the instruction manual: ‘Attaching Sensors for SKF Multilog
On-Line Systems’. This provides examples of monitoring scenarios (typical
number and location of sensors) as well as important guidance regarding the
fitting of sensors.