IFM VSE953 User manual

Operating instructions
Diagnostic electronics
with Modbus TCP interface for vibration sensors
VSE953
11371835 / 0003 / 2021
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VSE953 Diagnostic electronics
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Contents
1 Safety instructions............................................................ 3
2 Preliminary note.............................................................. 4
2.1 Symbols used........................................................... 4
2.2 Warnings used.......................................................... 4
3 Intended use ................................................................ 5
4 Device functions.............................................................. 6
4.1 Function description...................................................... 7
4.2 Firmware .............................................................. 7
5 Mounting ................................................................... 8
5.1 Emission .............................................................. 8
5.2 Sources of interference ................................................... 8
5.3 Cable routing ........................................................... 8
5.4 Installation instructions.................................................... 8
6 Electrical connection .......................................................... 9
6.1 Wiring................................................................. 9
6.2 Connection of the sensors................................................. 10
7 Modbus TCP ................................................................ 11
7.1 Properties.............................................................. 11
7.2 Data model............................................................. 11
7.3 Register............................................................... 14
7.3.1 Device identification register............................................ 14
7.3.2 Register mapping input (FC4)........................................... 14
7.4 Input function code....................................................... 14
7.5 Register mapping output (FC3, FC6 and FC16). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.6 Output function code ..................................................... 15
7.7 Exception response...................................................... 15
7.8 Factory setting VSE953 - Modbus TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.9 General factory setting.................................................... 15
7.10 Note for programmers .................................................... 15
7.11 Parameter setting........................................................ 16
8 Operating and display elements.................................................. 17
8.1 Operating states of the network (NET) and mode (MOD) status LED . . . . . . . . . . . . . . . . 17
9 Maintenance, repair and disposal ................................................ 18

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1 Safety instructions
• The unit described is a subcomponent for integration into a system.
– The system architect is responsible for the safety of the system.
– The system creator undertakes to perform a risk assessment and to create documentation in
accordance with legal and normative requirements to be provided to the operator and user of
the system. This documentation must contain all necessary information and safety instructions
for the operator, the user and, if applicable, for any service personnel authorised by the
architect of the system.
• Read this document before setting up the product and keep it during the entire service life.
• The product must be suitable for the corresponding applications and environmental conditions
without any restrictions.
• Only use the product for its intended purpose (Ò Intended use).
• If the operating instructions or the technical data are not adhered to, personal injury and/or damage
to property may occur.
• The manufacturer assumes no liability or warranty for any consequences caused by tampering with
the product or incorrect use by the operator.
• Installation, electrical connection, set-up, operation and maintenance of the product must be
carried out by qualified personnel authorised by the machine operator.
• Protect units and cables against damage.
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2 Preliminary note
You will find instructions, technical data, approvals, accessories and further information using the QR
code on the unit / packaging or at www.ifm.com.
2.1 Symbols used
Requirement
Instructions
Reaction, result
[...] Designation of keys, buttons or indications
Cross-reference
Important note
Non-compliance may result in malfunction or interference.
Information
Supplementary note
2.2 Warnings used
ATTENTION
Warning of damage to property
CAUTION
Warning of personal injury
wSlight reversible injuries may result.
WARNING
Warning of serious personal injury
wDeath or serious irreversible injuries may result.

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3 Intended use
The device has been designed for process value monitoring, vibration monitoring and analysis of
dynamic signals.
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4 Device functions
The diagnostic electronics has
– 2 analogue inputs
– 4 dynamic inputs
– 1 analogue or digital output
– 1 digital output
– 1 TCP/IP parameter setting interface
– 2 Modbus TCP ports
Input IN1: connection for a pulse signal (HTL).
Input IN2: connection for an analogue current signal (4...20 mA).
The analogue inputs can be used
– as trigger for measurements (e.g. rotational speed for vibration diagnostics)
– as trigger of a counter
– for process monitoring
VSA, VSP or standard IEPE acceleration sensors can be connected to the dynamic inputs.
The dynamic inputs can be used for
– vibration monitoring
– vibration diagnostics
– analysis of other dynamic signals
The hardware outputs can be configured as 2 x binary (NO/NC) or as 1 x analogue (0/4…20 mA) and
1x binary (NO/NC).
The outputs can be used for
– time-critical alarms (e.g. machine protection, response time up to 1 ms)
– alarm output
– analogue value output of values measured by the diagnostic electronics
The parameter setting interface (TCP/IP) is used for communication between the diagnostic
electronics and a PC (e.g. VES004 parameter setting software).
The parameter setting interface can be used for
– parameter setting of the device
– online data monitoring
– reading the history memory
– firmware update
The Modbus TCP ports are used for the communication between the diagnostic electronics and a
Modbus TCP client/master (e.g. PLC).
The Modbus TCP interface can be used for
– transferring the current measured values, limits and alarm states of the diagnostic electronics to
the PLC
– reading the counter readings of the diagnostic electronics
– writing rotational speeds and other values from the PLC to the diagnostic electronics
– writing teach values from the PLC to the diagnostic electronics

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ATTENTION
The device is not approved for safety-related tasks in the field of operator protection.
4.1 Function description
This device allows for
– vibration monitoring (total vibration to ISO)
– condition monitoring (condition-based monitoring on the basis of vibration characteristics)
– machine protection/process monitoring (monitoring vibration characteristics in real time with a
very fast response time up to 1 ms)
to be implemented.
Monitoring of
– up to 24 objects (indicators for different machine parts, vibration characteristics or process
values)
– dynamic values within the time range (e.g. v-RMS to ISO)
– dynamic values within the frequency range FFT or HFFT (e.g. unbalance or rolling element
bearing)
– process values (analogue signals) for current value above or below the limit
The device has an internal history memory (600,000 values) with real-time clock and flexible memory
interval per object. The memory is a ring memory (FIFO).
Up to 32 counters can be configured to measure the duration of operating times and/or how long a
limit value is exceeded.
The signals at the inputs are permanently picked up and continuously monitored according to the set
parameters.
With objects in the frequency range (unbalance, rolling element bearing ...), monitoring is done in
multiplex mode.
With objects in the time range (v-RMS, a-RMS and a-Peak), all 4 dynamic inputs are monitored
simultaneously and without interruption.
The two outputs OU1/2 can be used for alarms.
Parameter setting of monitoring tasks and alarming is done via the VES004 software. The software
allows to display and record the current measured values, spectra and time signals (online data).
Via the Ethernet interface of the device, networking is possible to visualise data (measured values,
alarm states, ...) in other systems (e.g. SCADA, MES, ....).
Data (e.g. measured values, alarm states, limits, rotational speeds, timer readings, ...) is exchanged
between the diagnostic electronics and the Modbus TCP client/master (e.g. PLC) via the Modbus TCP
ports.
4.2 Firmware
uRecommendation: Install the firmware to use all device functions.
The firmware can only be updated via the VES004 PC software. Only the firmware of the entire device
can be updated.
wFirmware and operating software → download area www.ifm.com
wA description of all firmware parameters and their meaning → VES004 PC software manual.
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5 Mounting
uDisconnect the power to the machine during installation.
uUse a flat mounting surface for installation.
uFix the device to the mounting surface using screws (max. M6) and washers.
uGround the device with the earthing screw provided.
When preparing for cable installation, the local conditions and the corresponding mounting regulations
are very important. Cables can be installed, for example, in cable ducts or on cable bridges.
A minimum distance between the cabling and possible sources of interference (e.g. machines, welding
equipment, power lines) is defined in the applicable regulations and standards. During system
planning and installation, these regulations and standards must be taken into account and observed.
Protect the bus cables from sources of electric/magnetic interference and mechanical strain.
Observe the guidelines regarding "electromagnetic compatibility" (EMC) to keep mechanical risks and
interference to a minimum.
5.1 Emission
This is a class A product. The device may cause radio interference in domestic areas.
uIt if necessary, take measures to prevent radio interference.
5.2 Sources of interference
uSignal cables and power supply lines should not be installed in parallel.
uIf necessary, metal isolating segments should be placed between the power supply lines and signal
cables.
5.3 Cable routing
Network/bus cables: Install network/bus cables in separate cable ducts or separate cable bundles.
uWhere possible, do not install network/bus cables parallel to power supply lines.
uInstall network/bus cables at least 10 cm away from power lines.
5.4 Installation instructions
Electrostatic discharge
The device contains components that can be damaged or destroyed by electrostatic discharge.
uWhen handling the device, observe the necessary safety precautions against electrostatic
discharge (ESD) according to EN 61340-5-1 and IEC 61340-5-1.

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6 Electrical connection
The national and international regulations for the installation of electrical equipment must be adhered
to. Avoid contact with dangerous contact voltages.
uDisconnect power.
uConnect the device.
uTo prevent negative effects on the functions caused by noise voltages, lay sensor cables and load
cables separately.
Maximum cable length for the sensors 1…4: 250 m.
Maximum cable length for the inputs IN1 and IN2: 30 m.
wConnect the screen at the sensor.
wUse a screened sensor cable (self-assembled).
The outputs are short-circuit proof and can be configured as either normally closed or normally open.
In addition, an analogue signal can be provided on output [OU 1] (0/4...20 mA) (e.g. acceleration
values).
6.1 Wiring
Sensor 1…4
M12 socket, A-coded
1: L+ (bn)
3
1 2
4
5
2: Signal (wh)
3: GND (bu)
4: Test (bk)
5: not used
Config / IE1 / IE2
M12 socket, D-coded
1: TxD+
1 2
34
5
2: RxD+
3: TxD-
4: RxD-
5: not used
IN 1
M12 socket, A-coded
1: 24 V DC (bn)
3
1 2
4
5
2: not used
3: GND (bu)
4: IN pulse (bk)
5: not used
IN 2
M12 socket, A-coded
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IN 2
1: 24 V DC (bn)
3
1 2
4
5
2: IN 4...20 mA (wh)
3: GND (bu)
4: not used
5: not used
OU / Supply
M12 connector, A-coded
1: 24 V DC (bn)
43
2 1
2: analogue or digital (wh)
3: GND (gn)
4: OU2: switch
6.2 Connection of the sensors
Adhere to the SELV criteria (safety extra-low voltage, circuit electrically isolated from other circuits,
ungrounded) when the sensors are connected so that no dangerous contact voltages are applied to
the sensor or transferred to the device.
If the DC circuit is to be grounded (e.g. due to national regulations), the PELV criteria must be adhered
to (protective extra-low voltage, circuit electrically isolated from other circuits).
Sensor and diagnostic electronics supply are not electrically isolated.