SKF Multilog IMx-S Series User manual

User manual
Copyright 2016 by SKF Group
All rights reserved.
SKF Condition Monitoring Center – Luleå
Aurorum 30, 977 75 Luleå, Sweden
Telephone: [phone], Fax: [phone]
SKF Multilog On-Line
System IMx-S
User Manual Part No. 32087700-EN
Revision R
WARNING! Read this manual before using this 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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© SKF 2016
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Patents: US 4,768,380 • US 5,633,811 • US 5,679,900 • US 5,845,230 • US 5,852,351 •
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US 6,437,692 • US 6,489,884 • US 6,513,386 • US 6,633,822 • US 6,789,025 • US 6,792,360 •
US 7,103,511 • US 7,697,492 • WO/2003/048714
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031616dc

SKF Multilog On-Line System IMx-S TOC - 1
User Manual
Table of Contents
Introduction 1
Important Messages .................................................. 1-1
System Overview........................................................ 1-2
IMx-S Unit ................................................................... 1-3
System LED Indicators .............................................. 1-4
Installation 2
Safety and Requirements......................................... 2-1
Scenario....................................................................... 2-2
Sensor Cables ............................................................. 2-2
Supply Cable ............................................................... 2-3
Cable Glands ............................................................... 2-3
Mains Power ............................................................... 2-3
Communication Cable ............................................... 2-5
Data Communication................................................. 2-5
Ethernet Cable............................................................ 2-5
Unit Configuration 3
Analogue Inputs.......................................................... 3-1
Digital Inputs ............................................................... 3-3
RS485 Communication............................................. 3-5
Relays ........................................................................... 3-6
Network Configuration.............................................. 3-8
IMx-S Time................................................................3-10
Hardware Maintenance 4
Electrical Waste 5
Troubleshooting Guide 6
Problems and Symptoms ......................................... 6-1
Component Check ...................................................... 6-3
Technical Data 7
Environmental ............................................................ 7-1
Power Supply.............................................................. 7-1

TOC - 2 SKF Multilog On-Line System IMx-S
User Manual
Analogue Inputs ......................................................... 7-2
Digital Inputs............................................................... 7-2
Outputs ........................................................................ 7-2
Analogue Measurement............................................ 7-2
Digital Measurement ................................................. 7-3
Signal Processing....................................................... 7-3
Interface....................................................................... 7-4
Data Processing ......................................................... 7-4
Miscellaneous.............................................................. 7-4
Quality Control............................................................ 7-4
IMx-S Drawings 8
IMx-S 16 Standard Cabinet..................................... 8-1
IMx-S 16 Stainless Steel Cabinet ........................... 8-2
IMx-S 32 Standard & Stainless Steel Cabinet...... 8-3
Terminal List............................................................... 8-4
Limited Warranty A
Index

SKF Multilog On-Line System IMx-S 1 - 1
User Manual
1
Introduction
Important Messages
The following messages are important information which require special care in order
to have a safe and reliable IMx-S system.
Important messages, instructions and information in this manual must be
carefully followed. Otherwise, harm might occur to equipment and/or personnel.
In order to fulfill fire enclosure requirements the following must be ensured:
-The cabinet must always be mounted using all four supplied mounting
brackets.
-All unused cable ways must be closed with the supplied blind plugs.
-All cable glands and blind plugs must be made of material with fire protection
V-1 or better.
Important messages related to mains power (see Mains Power section as well):
-In some countries, you have to be certified in order to connect an IMx-S to the
power grid
-Make sure that the power is disconnected before the installation.
-Mains cable must be properly fixed with a cable gland to prevent the cord from
strain, twist or move. See Cable Glands section as well.
-In order to prevent a hazardous event, mains cable neutral (N) and line (L1)
wires must be secured together with a cable tie (for example, a nylon cable tie
CV-100K) close to the mains power connector.
-For permanently connected IMx-S, an external all pole power switch must be
installed in order to be able to disconnect the IMx-S from the mains power
grid. The switch must be labeled "IMx-S” or similar. On/Off position must be
clearly marked. The switch must be located close to the IMx-S, within
operator's easy reach.
IMx-S unit contains circuit boards that are static sensitive. Therefore, use
appropriate precautions to prevent ElectroStatic Discharge (ESD) when handling
circuit boards.

Introduction
System Overview
1 - 2 SKF Multilog On-Line System IMx-S
User Manual
Do NOT change DIP switch settings while the IMx-S unit is powered-up, as this
may cause damage and void warranty.
Before powering up the IMx-S unit, make sure that DIP switch settings are
properly set to match the recommendations for the connected sensors. Incorrect
settings may cause permanent damage to the IMx-S unit.
All externally provided equipment must be evaluated individually and approved
together with IMx-S unit regarding EMC and safety requirements (CE and ETL).
Always consult SKF CMC Luleå before the usage of the external mains output.
System Overview
IMx-S is a part of the SKF Multilog On-line System product range. IMx-S is designed to
be used for a variety of condition monitoring applications. In conjunction with SKF
@ptitude Observer or Analyst software, the IMx-S provides a complete system for early
fault detection and prevention, automatic advice for correcting existing or impending
conditions and advanced condition-based maintenance to improve machine reliability,
availability and performance.
Figure 1 - 1.
System Overview, IMx-S with @ptitude Observer/Analyst.
The picture above illustrates how IMx-S units are linked together in a network that is
connected via a LAN (it may also be a modem or GPRS router) to a SKF @ptitude
Observer Monitor or Analyst IMx Service. The @ptitude Observer Monitor or Analyst IMx
Service in turn can be connected to e.g. a LAN network making it possible for several of
@ptitude Observer or Analyst clients to link to this network.
@ptitude Observer or Analyst clients can also be installed on the same computer as
@ptitude Observer Monitor or Analyst IMx Service login software. Through a general
interface, also known as ODBC (open database connectivity), it is possible to link
@ptitude Observer Monitor or Analyst IMx Service login computer to an existing
database for an existing control or processing system, if desired. @ptitude Observer
Monitor or Analyst IMx Service, @ptitude Observer or Analyst clients and the database
can be separated from each other as long as they are on the same network where
ODBC calls can travel freely.

Introduction
IMx-S Unit
SKF Multilog On-Line System IMx-S 1 - 3
User Manual
It is also possible to connect different types of on-line units in the same network, for
example, IMx-S together with other IMx units and/or MasCon systems.
IMx-S Unit
Figure 1 - 2.
SKF Multilog On-line System IMx-S 16 (left) and IMx-S 32 (right).
IMx-S 16
•Up to 16 analogue channels
•Up to 8 digital sensors, where 4 of the digital input channels are configurable for all
standard trigger sensors and 4 channels for square pulses with trigger level 12 to
24 V
•Each IMx-S 16 unit has 8 MB flash memory with the following storage capacity:
–2 MB for firmware, configuration files, etc.
–2 MB for trend value buffer
About 13 000 vibration trend values can be buffered.
Speed and process data use half the space of vibration.
–4 MB for spectra and time signal buffer
About 250 spectra using 1 600 lines with phase and time signal can
be buffered.
If you use more lines, the number of spectrum is reduced.
If you use less lines, the number of spectrum is increased.
–When the buffer gets full, the oldest data is thrown away.

Introduction
System LED Indicators
1 - 4 SKF Multilog On-Line System IMx-S
User Manual
IMx-S 32
An IMx-S 32 is basically composed of two IMx-S 16s.
•Up to 32 analogue channels
•Up to 16 digital sensors with 8 configurable digital input channels for all standard
trigger sensors and 8 channels for square pulses with trigger level 12 to 24 V
•IMx-S 32 unit has two CPU cards. Each CPU card, separately has 4 MB flash
memory with the same storage capacity of IMx-S 16.
IMx-S Unique Features
•Individual conditions for alert and danger may be set for each measurement point.
•Each channel has indicators for alert and danger. Alert and danger levels may be
controlled by machine speed or load. However, it is also possible to manually
bypass the alert and danger functionality.
•The unit's unique built-in hardware auto-diagnosis system continuously checks all
sensors, cabling and electronics for any faults, signal interruption, short circuits or
power failure.
Initiating IMx-S
Initiating the IMx-S is simple to carry out.
•This is done through an initiating program @ptitude On-line Device Configurator or
Multilog IMx Configurator tool and a (portable) computer using RS232 serial
interface.
•The network configuration parameters, such as IP address, IMx identification
number, etc. are stored in a separate configuration file first, then transferred to the
IMx-S memory. These are retained in the event of power losses, so that the IMx-S
can start automatically when power returns.
System LED Indicators
IMx-S has two system LED indicators on the CPU card.
•Red LED SYS indicates system fault. On means that system fault has been
detected.
Note that SYS LED is on for a short time when the system is cold
booted or re-started.
•Green LED PWR indicates the status of power. On means that the power is Ok.

SKF Multilog On-Line System IMx-S 2 - 1
User Manual
2
Installation
The installation of an IMx-S must be carried out according to the instructions and
advice given in this manual. Any deviation from these directions can be made only after
consulting with the SKF Condition Monitoring Center Luleå.
Installation errors can lead to a situation where the system does not work as intended
and machinery faults go undetected. Therefore, contact the IMx-S application engineer
at the slightest doubt during the installation.
Installation errors which require the involvement of SKF Condition
Monitoring Center Luleå personnel in order to rectify the start of
the system, might be debited.
Safety and Requirements
It is important to assess and evaluate the current site for safety instructions and
stipulations.
During the installation work, make oneself acquainted with the valid safety stipulations
for the specific machine. Different types of machines can have different safety hazards
and safety instructions. In all cases, read the instructions carefully and act accordingly.
Important - In order to fulfill fire enclosure requirements, the cabinet must always
be mounted using all four supplied mounting brackets.
IMx-S unit contains circuit boards that are static sensitive. Therefore, use appropriate
precautions to prevent ElectroStatic Discharge (ESD) when handling circuit boards.
The following are some of the ways to prevent ESD:
•Use an ESD wrist strap when handling circuit boards
•Use a grounding mat when handling circuit boards
•Use correct packaging materials such as antistatic bags when transferring circuit
boards
Important - IMx-S unit contains circuit boards that are static sensitive. Therefore,
use appropriate precautions to prevent ElectroStatic Discharge (ESD) when
handling circuit boards.
Mount the IMx-S unit and make sure that it is firmly attached at a location where it is
not exposed to unnecessary radiant heat or strong magnetic fields.
The ambient temperature can be found in Environmental section under Technical Data.

Installation
Scenario
2 - 2 SKF Multilog On-Line System IMx-S
User Manual
Scenario
It is important to assess and evaluate the current site where the system is to be
installed.
Before getting started, draw a plan on a piece of paper how you would like this
installation to look like after it is completed, then consider if it is possible to achieve.
Among other things, consider lengths of cables, where electrical power to the IMx-S
units can be connected, where the @ptitude Observer Monitor or Analyst IMx Service
should be installed and positioned and who should analyse the data measured. Good
and thorough planning is the basis for a successful solution and installation.
Make a detailed layout of the equipment, the network, and distances between
components. Include specifically the IMx-S units, the @ptitude Observer Monitor or
Analyst IMx Service computer, the database server computer and all hubs/routers in the
network. Specify network configuration of each components, such as IP addresses and
subnet masks. SKF application engineers and service engineers need these information
in order to assist.
Note that a CAT5/6 Twisted Pair (TP) Ethernet cable has maximum working distance of
100 m. If longer cable lengths are needed, fibre optic cables may be used along with
needed converters such as converters for fibre optic to CAT5/6 (TP) Ethernet and vice
versa.
When GPRS is used, the GPRS routers should be reconfigured as a part of the
application to run a lifeline connection with the Observer Monitor or Analyst IMx Service
computer.
Important - Failure of this communication path will force the GPRS router to
reboot itself constantly, and can hamper the success of the application. This is
especially valuable to consider when the GPRS forms a part of the customers
internal IP network (VPN). In such case, SKF must be informed of this before
ordering the GPRS, so that SKF can disable the lifeline functionality of the GPRS
router.
Sensor Cables
When routing a sensor cable, it is important that the cable is firmly fixed. The cable may
never be allowed to vibrate or oscillate, since this effects the capacitance of the cable,
and thereby the measurement result.
The sensor cable may not be routed or bundled together with supply cables since it
generates strong magnetic fields.
Important - In general, all cables must be routed as far away as possible from the
high voltage cables. If this cannot be done, care should be taken to use high quality
shielded cables, such as S-FTP (screened shielded twisted pair) CAT6 for the
network. In difficult cases, it is the safest to use fibre optic cables.

Installation
Supply Cable
SKF Multilog On-Line System IMx-S 2 - 3
User Manual
To connect IMx-S to sensors, the following sensor cable type is recommended:
•Shielded, twisted pair 2 ×2 ×0,5 mm2(FKAR-PG 2 ×2 ×0.50, DUE 4002 or
corresponding)
Supply Cable
To connect IMx-S to 240 VAC or 120 VAC, the following is recommended:
•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 ºF).
It is required that the IMx-S must be connected to protective ground/earth (PE). Refer
to Mains Power for attaching power cable to the mains power/power grid.
Important - The cross section area of the PE wire must be equal or greater than
the cross section area of the power wires. The PE wire should be color labeled
green/yellow. However, in some countries, other cable requirements may apply.
Important - Mains cable must be properly fixed with a cable gland to prevent the
cord from strain, twist or move. See Cable Glands section as well.
Cable Glands
If the sensor cable shields are to be grounded to IMx-S unit, then metallic EMC type
cable glands with 360 degree shield connection are recommended for all cable lead-
through except the mains and communication cable.
Important - All unused cable ways must be closed with blind plugs. All cable glands
and blind plugs must be made of material with fire protection V-1 or better
Mains Power
In order to attach power cable to the mains power grid, follow the directions below.
•First connect the green-yellow wire to the PE (protective earth) terminal.
•Connect the blue wire to the N (neutral) terminal.
•Connect the brown or black wire to the L1 (line) terminal.
Important - Make sure that the power is turned off before touching the power
cable. Touching the leads of a powered cable can cause serious injuries.
Important - In some countries, you have to be certified in order to connect an IMx-
S to the power grid.

Installation
Mains Power
2 - 4 SKF Multilog On-Line System IMx-S
User Manual
Important - For permanently connected IMx-S an external all pole power switch
must be installed in order to be able to disconnect the IMx-S from the mains power
grid. The switch must be labeled "IMx-S” or similar. On/Off position must be clearly
marked. The switch must be located close to the IMx-S, within operator's easy
reach.
Important - Fuse holder CANNOT be used as mains power disconnect device.
Refer to Power Supply in Technical Data section for power requirements.
Figure 2 - 1.
IMx-S Mains Power and Fuse Holder.
As shown in the picture above, a fuse (slow blow T2A, 250 V, 5 x 20 mm) is mounted in
the terminal power inlet.
Important - In order to prevent a hazardous event, mains cable neutral (N) and line
(L1) wires must be secured together with a cable tie (for example, a nylon cable tie
CV-100K) close to the mains power connector.
Important - All externally provided equipment must be evaluated individually and
approved together with IMx-S unit regarding EMC and safety requirements (CE and
ETL). Always consult SKF CMC Luleå before the usage of the external mains output.

Installation
Communication Cable
SKF Multilog On-Line System IMx-S 2 - 5
User Manual
Communication Cable
For lengths up to 15 meters, it is recommended to use pre-fabricated Ethernet twisted
pair cable FTP type, CAT5/6.
For longer cable lengths, it is recommended to use S-FTP (screened shielded twisted
pair) Ethernet cable CAT5/6.
Data Communication
IMx-S unit data communications are compliant with the Ethernet standard 10/100 Mbit
(half- and full-duplex).
IMx-S has two Ethernet ports which work like an internal network switch.
Ethernet Cable
The Ethernet TP cable on the IMx-S is connected at one of the standard Ethernet RJ45
connections. Both Ethernet ports have auto detection of crossover or straight through
Ethernet cable connection. Basically, IMx-S has a built-in 2-port Ethernet switches. It is
possible to connect several IMx-S units in a daisy chain with up to 8 units in a single
cable layout.
There are two LEDs on RJ45 connector.
•Yellow LED is the Ethernet traffic indicator which flickers whenever there is traffic
on the network.
•Green LED is the Ethernet link indicator which lights up when the system is
correctly connected to another network device.

SKF Multilog On-Line System IMx-S 3 - 1
User Manual
3
Unit Configuration
In general, when referring to DIP switch settings 0 means Off and 1 means On.
Table 3-1: DIP switch setting definition.
DIP Switch Setting Definition
0 OFF
1 ON
Analogue Inputs
The figure below shows the screw terminal connections for the IMx-S.
Important - The sensor shield should be connected either to the sensor or to the
IMx-S unit depending on the cable and the sensor type. Which means that the
sensor shield can be connected only at one end to avoid ground loops.
Figure 3 - 1.
IMx-S Terminal Connection, Standard Accelerometer.
The IMx-S I/O board along with the corresponding analogue terminal list are shown
below.

Unit Configuration
Analogue Inputs
3 - 2 SKF Multilog On-Line System IMx-S
User Manual
Figure 3 - 2.
IMx-S I/O Board, Analogue Inputs.
Table 3-2: Analogue terminal list.
The DIP switch settings for connected analogue sensors must be applied according to
the table below.
Table 3-3: DIP switch settings for analogue sensors.
Signal Terminal DIP Settings
position: 123456
Standard
accelerometer (ICP)
N.C.
+ Signal/Pwr
Com.
Pwr
A
B
100110
Voltage source
N.C.
+ Signal
Com.
Pwr
A
B
000000
4–20 mA source N.C.
+ Signal
– Signal
Pwr
A
B
000001
B-sensor (4–20 mA
ouput)
+24 V
Signal
Com.
Pwr
A
B
100101
Eddy probe (–24 V) –24 V
Signal
Com.
Pwr
A
B
011000
Voltage powered
sensor (max 35 mA)
+24 V
Signal
Com.
Pwr
A
B
100100
4–20 mA (IMx
powered)
+ Signal
– Signal
N.C.
Pwr
A
B
100101
N.C. = Not Connected
DIP switch setting 1 = ON, 0 = OFF

Unit Configuration
Digital Inputs
SKF Multilog On-Line System IMx-S 3 - 3
User Manual
At maximum ambient temperature, the total sensor power from all inputs must not
exceed:
IMx-S 16 10 W
IMx-S 32 10 W (at 60 ˚C [140 °F] only ICP sensors are recommended)
At lower temperatures more total sensor power is allowed; please contact SKF
Condition Monitoring Center Luleå or application engineer.
Important - Do NOT change DIP switch settings while the IMx-S unit is powered-
up, as this may cause damage and void warranty.
Important - Before powering up the IMx-S unit, make sure that DIP switch settings
are properly set to match the recommendations for the connected sensors.
Incorrect settings may cause permanent damage to the IMx-S unit.
Digital Inputs
The IMx-S I/O board along with the corresponding digital terminal list are shown below.
Figure 3 - 3.
IMx-S I/O Board, Digital Inputs.
Table 3-4: Digital terminal list.
Digital inputs 1 to 4 (Dig1 to Dig4) are configurable via DIP settings. The DIP settings
must be applied according to the table below.

Unit Configuration
Digital Inputs
3 - 4 SKF Multilog On-Line System IMx-S
User Manual
Table 3-5: DIP switch setting for digital sensors.
Signal Terminal DIP Settings
position: 1234
(with I/O-board
version less
than v1.24)
DIP Settings
position: 1234
(with I/O board
v1.24 or greater,
with a hole in
front panel for
DIP21)
Tacho 2-wire
(24 V internally powered,
max 30 mA)
+
–
N.C.
A
B
O
1010 1011
Tacho 3-wire NPN
(24 V internally powered,
max 30 mA)
Brown (+24 V)
Black (Signal)
Blue (0 V)
A
B
0
0100
0101
Tacho 3-wire PNP
(24 V internally powered,
max 30 mA)
Brown (+24V)
Black (Signal)
Blue (0V)
A
B
0
1010 1011
Pulse 12–24 V
(external power)
+
–
N.C.
A
B
O
0100
0101
Pulse TTL
(external power)
N.C.
+
–
A
B
0
1010 1010
N.C. = Not Connected
DIP switch setting 1 = ON, 0 = OFF
DIP position 4 has no effect on the older I/O board (less than V1.24).
Digital inputs 5 to 8 (Dig5 to Dig8) are non-configurable and sensor power is from
external source.
They are only used for externally powered signals with signal level of 12 to 24 V, square
wave signal.
Table 3-6: Digital inputs 5 to 8 terminal list.
Signal Terminal
Pulse 12–24 V
(external power)
+
–
A
B

Unit Configuration
RS485 Communication
SKF Multilog On-Line System IMx-S 3 - 5
User Manual
RS485 Communication
Twisted pair shielded cable shall be used.
Important - Connect the shield only at one end to avoid ground loops.
The cable connection should be done according to the following:
Table 3-7: Cable connection.
IMx-S RS485 Equipment
RS485 A Out A
RS485 B Out B
If the IMx-S unit is at the end or beginning of the RS485 Bus, activate the built-in
termination resistor by setting DIP21 according to the table below. DIP21 can be
accessed after the front panel has been taken off. It is located below the Dig3 DIP
switch.
On newer systems there is a hole in the front panel for DIP21 (no
need to remove front panel).
Table 3-8: DIP21 functionality.
DIP21 settings
position: 1234
Functionality with I/O board version less than
v1.24 (DIP21-switch with 4 positions)
0100 Termination resistor enabled RS 485
0000 Termination resistor disabled RS 485
DIP21 settings
position: 123456
Functionality with I/O board v1.24 or greater
(DIP21-switch with 6 positions)
011010 Termination resistor enabled
001010 Termination resistor disabled
Figure 3 - 4.
Front Panel with DIP21 Hole (I/O board v1.24 or Greater).
Modbus protocol is used for RS485 communication. IMx-S can be configured as master
or slave. However, if IMx-S is configured as master, only one slave device will be
supported. If more than one slave device is needed, contact SKF Condition Monitoring
Center, Luleå.
For more information regarding RS485/Modbus, refer to "Modbus for IMx & MasCon16
User Manual".

Unit Configuration
Relays
3 - 6 SKF Multilog On-Line System IMx-S
User Manual
Relays
The sensor I/O terminals along with the corresponding relay terminal list are shown
below.
Figure 3 - 5.
IMx-S I/O Board, Relays.
Table 3-9: Relay terminal list.
Software Controlled Relays
Each IMx-S 16 has four and IMx-S 32 has eight software controlled relay driver outputs
labeled as Dig1 OUT through Dig4 OUT (see Relay terminal list above). These relay
driver outputs can be connected to relays as shown in the figure below.
Figure 3 - 6.
Relay Driver Output Connections.
Note that terminals Dig +12V always have the voltage +12 V, whereas terminals Dig1
OUT to Dig4 OUT are low side drivers known as open collectors.