IFM DP2122 User manual

Operating instructions
Speed monitor
DP2122
80287374 / 0005 / 2021
GB

DP2122 Speed monitor
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Contents
1 Preliminary note.............................................................. 4
1.1 Symbols used........................................................... 4
1.2 Warnings used.......................................................... 4
2 Safety instructions............................................................ 5
3 Intended use ................................................................ 6
4 Function.................................................................... 7
4.1 Operating modes........................................................ 7
4.2 Application as an IO-Link device ............................................ 7
4.2.1 General information................................................... 7
4.2.2 Application example .................................................. 8
4.2.3 IO Device Description (IODD)........................................... 8
4.3 Standard IO wiring....................................................... 8
4.4 Function diagrams....................................................... 9
4.4.1 Single point mode.................................................... 9
4.4.2 Window mode....................................................... 9
4.4.3 Two point mode...................................................... 10
4.4.4 Deactivated mode.................................................... 11
4.4.5 Standard IO mode.................................................... 11
4.4.6 Switching delays..................................................... 11
4.4.7 Switch-off delay...................................................... 12
4.5 Start-up delay........................................................... 12
5 Installation .................................................................. 13
6 Electrical connection .......................................................... 14
6.1 Mounting the connector................................................... 15
6.2 Removing the connector .................................................. 15
6.3 Cable length............................................................ 15
7 Operating and display elements.................................................. 16
7.1 Push rings (pushbuttons).................................................. 16
7.2 LEDs ................................................................. 16
7.3 Display................................................................ 17
8 Menu ...................................................................... 18
8.1 General ............................................................... 18
8.2 Menu structure.......................................................... 19
8.2.1 Operating mode 1.................................................... 19
8.2.2 Operating mode 2.................................................... 20
8.3 Parameters of the main menu .............................................. 20
8.3.1 SSC1 ─ speed monitor OUT1........................................... 20
8.3.2 SSC2 ─ speed monitor OUT2........................................... 21
8.3.3 EF ─ extended functions............................................... 21
8.4 Parameters for OUT1 (SSC1) .............................................. 21
8.4.1 ModE ─ switch point mode............................................. 21
8.4.2 LoGc ─ switch point logic .............................................. 21
8.4.3 SP1 ─ switch point 1.................................................. 21
8.4.4 SP2 ─ switch point 2.................................................. 21
8.4.5 HyS ─ switch points hysteresis.......................................... 21
8.4.6 dS ─ switching delay.................................................. 22
8.4.7 dr ─ switch-off delay .................................................. 22
8.4.8 P-n ─ output configuration.............................................. 22
8.5 Parameters for OUT2 (SSC2) .............................................. 22
8.6 Parameters of the extended functions (EF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.6.1 rES ─ restore factory setting............................................ 22
8.6.2 Lo/Hi ─ min/max measured input values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.6.3 dSt ─ start-up delay time............................................... 22
8.6.4 ScAL ─ set decimal point .............................................. 22
8.6.5 C.FEP ─ custom user endpoint for frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.6.6 PrSC ─ prescaler..................................................... 23

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8.6.7 coLr ─ display colours and colour changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.6.8 cFH/cFL ─ upper/lower value for colour change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.6.9 diS.b ─ display power on............................................... 24
8.6.10 diS.U ─ refresh rate of the displayed measured value . . . . . . . . . . . . . . . . . . . . . . . . 25
8.6.11 CMPT ─ indication of the operating mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.7 Parameters adjustable via IO-Link........................................... 25
8.7.1 C.uni – customer-specific unit........................................... 25
8.7.2 FLASH_ON – activate flashing of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.7.3 FLASH_OFF – deactivate flashing of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.7.4 SSC counter – switching counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.7.5 internal_temperature – operating temperature microcontroller . . . . . . . . . . . . . . . . . . 25
8.7.6 operation_hours – operating hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.7.7 Application-specific tag................................................ 26
8.7.8 Location tag ........................................................ 26
8.7.9 Function tag ........................................................ 26
9 Parameter setting............................................................. 27
9.1 Parameter setting in general ............................................... 27
9.1.1 Example [ModE] - switch point mode for OUT2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.2 Notes on programming.................................................... 28
9.2.1 Locking / unlocking ................................................... 28
9.2.2 Timeout............................................................ 28
9.2.3 Numerical entries with [▼] or [▲] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 Operation................................................................... 29
11 Troubleshooting.............................................................. 30
12 Maintenance, repair and disposal ................................................ 31
13 Factory settings.............................................................. 32
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1 Preliminary note
You will find instructions, technical data, approvals and further information using the QR code on the
unit / packaging or at www.ifm.com.
1.1 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
1.2 Warnings used
CAUTION
Warning of personal injury
wSlight reversible injuries may result.

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2 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 architect 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, programming, configuration, operation and maintenance
of the product must be carried out by personnel qualified and authorised for the respective activity.
• Protect units and cables against damage.
• Replace damaged units, otherwise the technical data and safety will be impaired.
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3 Intended use
The unit is a pulse evaluation system. It monitors rotating, linear, vibrating or oscillating movements.
It receives the pulses from external sensors, measures the pulse interval and calculates the input
frequency. This value is compared with the set switch points; the outputs are switched in accordance
with the set parameters.
2
3
4 5
6 6
1
Fig.1: Example: speed monitoring of a drive shaft on a conveyor belt
1: Conveyor belt 2: Pulse pick-up on the drive shaft
3: DP2122 4: Transistor output (e.g. to control a light indicator, horn or
relay)
5: Transistor output / IO-Link 6: Signals depending on the selected switching function
The unit is not suited for environments with particular requirements on mechanical stability (e.g.
shock/vibration).
The unit is intended for indoor use only.
uObserve the operating conditions (Ò Technical data at www.ifm.com).

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4 Function
Depending on the setting of the IO-Link parameter [CMPT], the unit displays the current frequency in
Hz or the rotational speed in RPM. It generates output signals according to the operating mode and
the parameter setting. In addition, it makes the process data available via IO-Link (in Hz or RPM,
depending on the operating mode).
The unit is designed for half-duplex communication. So the following options are possible:
• Remote display: reading and displaying the current frequency/speed
• Remote parameter setting: reading and changing the current parameter setting
• IO-Link parameter setting: IO Device Description (IODD) (Ò/8)
4.1 Operating modes
The following operating modes are available:
Operating mode 1: HZ_M (default)
Description Displays the frequency in Hz
Application Standard applications with frequency measurement in Hz
IODD designation DP2122 Factory setting / (CMPT=HZ_M)
IO-Link device ID 1167 d / 00 04 8f h
IO-Link parameter CMPT HZ_M (default)
Operating mode 2: rpnM
Description Displays the frequency in revolutions per minute (RPM)
Application Converted values in RPM
IODD designation DP2122 Status_B / (CMPT=rpnM)
IO-Link device ID 1294 d / 00 05 0e h
IO-Link parameter CMPT rpnM
In operating mode 2, the display of the unit always shows kRPM.
Manual selection of the operating mode:
CMPT ─ indication of the operating mode (Ò/25) and ModE ─ switch point mode (Ò/21)
for OUT2
Selection of the operating mode via IO-Link interface:
see document "Addition to the operating instructions: Selecting the operating mode using an IO-
Link interface" at www.ifm.com
4.2 Application as an IO-Link device
4.2.1 General information
The unit has an IO-Link communication interface which requires an IO-Link capable module (IO-Link
master).
The IO-Link interface allows direct access to the process and diagnostic data and enables setting of
the parameters of the unit during operation.
You will find further information about IO-Link and all the necessary information about the required IO-
Link hardware and software at:
www.ifm.com/gb/io-link
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4.2.2 Application example
3
Fieldbus
5
1
2
4
6
Fig.2: Application example with IO-Link master
1: Conveyor belt and pulse pick-up 2: DP2122
3: Fully bidirectional IO-Link communication
- Remote parameter setting: reading and changing the pa-
rameter setting.
4: IO-Link master
5: Fieldbus (e.g. Profibus, Profinet etc.) 6: PLC
4.2.3 IO Device Description (IODD)
You will find the IODDs necessary for the configuration of the IO-Link device and detailed information
about process data structure, diagnostic information and parameter addresses at:
www.ifm.com
4.3 Standard IO wiring
Switch points (standard IO mode) can also be used in combination with the standard inputs of a PLC.
OUT1 and OUT2 can be switched to digital inputs (e.g. standard input modules). OUT1 and OUT2 can
be evaluated via two digital inputs and implement a window function.
Voltage supply (pin 1 and 3) can be done via the input modules. With standard input modules, pins 1
and 3 are used for voltage supply (Ò Electrical connection).
3
Fieldbus
OUT1 / OUT2
5
1
2
4
6
Fig.3: Application example with a fieldbus system (e.g. AS-i)
1: Conveyor belt and pulse pick-up 2: DP2122
3: Digital outputs 4: Digital fieldbus module
5: Fieldbus (e.g. Profibus, Profinet etc.) 6: PLC

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4.4 Function diagrams
4.4.1 Single point mode
SP1
SP1+H
SP1
H
OFF ON
SSC
Fig.4: NO (IO-Link parameter LoGc: no / high active)
SP1: Overspeed: Reset point / underspeed: Switch point
SP1+H: Overspeed: Switch point / underspeed: Reset point
If a set rotational speed is not reached, this is signalled by the switching signal as open.
SP1
SP1+H
SP1
H
ON OFF
SSC
Fig.5: NC (IO-Link parameter LoGc: nc / low active)
SP1: Overspeed: Reset point / underspeed: Switch point
SP1+H: Overspeed: Switch point / underspeed: Reset point
If a set rotational speed is not reached, this is signalled by the switching signal as closed.
1: Power-on delay time 2: Start-up delay
3: normally open 4: normally closed
4.4.2 Window mode
SP2
SP2
SP2-H
H
OFF
SSC
SP1
SP1+H
SP1
H
ON OFF
Fig.6: NO (IO-Link parameter LoGc: no / high active)
SP1: switch-on point window
SP1+H: Switch-off point
SP2: switch-on point window
SP2-H: Switch-off point
If the set speed range is left, the swicthing signal will signal this as open.
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SP2
SP2
SP2-H
H
ON
SSC
SP1
SP1+H
SP1
H
OFF ON
Fig.7: NC (IO-Link parameter LoGc: nc / low active)
SP1: switch-off point window
SP1+H: Switch-on point
SP2: switch-off point window
SP2-H: Switch-on point
If the set speed range is left, the swicthing signal will signal this as closed.
1: Power-on delay time 2: Start-up delay
3: Normally open 4: Normally closed
4.4.3 Two point mode
SP2
SP1
SP2
H
OFF ON
SSC
SP1
Fig.8: NO (IO-Link parameter LoGc: no / high active)
SP1: Overspeed: Switch point / underspeed: Reset point
SP2: Overspeed: Reset point / underspeed: Switch point
If a set rotational speed is not reached, this is signalled by the switching signal as open.
SP2
SP1
SP2
H
ON
SSC
SP1
OFF
Fig.9: NC (IO-Link parameter LoGc: nc / low active)
SP1: Overspeed: Switch point / underspeed: Reset point
SP2: Overspeed: Reset point / underspeed: Switch point