IFM SM7621 Handleiding (60 Pagina's)

Operating instructions

Magnetic-inductive flow meter

SM4x20

SM6x20

SM7x20

SM8x20

SM8x30

SM6x21

SM7x21

SM8x21

SM8x31

80280073 / 03 09 / 2021

UK

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Contents

1 Preliminary note 4 ��

1�1 Symbols used 5 ��

1�2 Warnings used 5 ��

2 Safety instructions 5 ��

3 Getting started 6 ��

3�1 Device functions with factory setting 6 ��

3�2 Setting options 7 ��

4 Functions and features 7 ��

4�1 Pressure Equipment Directive (PED) 7 ��

4�2 Applications ��7

5 Function ��8

5�1 Process measured signals 8 ��

5�2 Volumetric flow direction 9 ��

5�2�1 Determining the volumetric flow direction [Fdir] 9 ��

5�2�2 Detection of the volumetric flow direction [dir�F] 9 ��

5�3 Consumed quantity monitoring 10 ��

5�3�1 Metering method of the quantity meters �� 11

5�3�2 Meter reset 13 ��

5�3�3 Consumed quantity monitoring via pulse signals 13 ��

5�3�4 Consumed quantity monitoring via switching signal (preset counter) 14 �

5�4 Frequency output 15 ��

5�5 Analogue output 17 ��

5�6 Switching output 19 ��

5�7 Measured value damping 20 ��

5�8 Low flow cut-off 20 ��

5�9 Start-up delay 20 ��

5�10 Simulation ��23

5�11 Colour of the characters in the display 24 ��

5�12 IO-Link ��25

5�12�1 Additional functions via IO-Link 25 ��

6 Installation��26

6�1 Recommended installation position 27 ��

6�2 Non-recommended installation position 27 ��

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6�3 Ground ��28

6�4 Installation in pipes 29 ��

7 Electrical connection 30 ��

8 Operating and display elements 32 ��

9 Menu ��33

9�1 Process value display (RUN) 33 ��

9�2 Main menu 34 ��

9�3 Extended functions EF 35 ��

9�4 Submenu OUT1 and OUT2 36 ��

9�5 Submenu CFG and TOTL ��39

9�6 Submenu MEM and DIS 41 ��

9�7 Submenu COLR and SIM 43 ��

10 Set-up ��45

11 Parameter setting 45 ��

11�1 Parameter setting in general 46 ��

11�1�1 Select submenu 46 ��

11�1�2 Change to the process value display (RUN mode) 46 ��

11�1�3 Locking / unlocking 46 ��

11�1�4 Timeout ��47

11�2 Settings for volumetric flow monitoring 47 ��

11�2�1 Limit monitoring OUT1 or OUT2 / hysteresis function 47 ��

11�2�2 Limit monitoring OUT1 or OUT2 / window function 47 ��

11�2�3 Switching signal volumetric flow direction OUT1 or OUT2 47 ��

11�2�4 Frequency signal volumetric flow OUT1 48 ��

11�2�5 Analogue signal volumetric flow OUT2 48 ��

11�3 Settings for consumed quantity monitoring 48 ��

11�3�1 Metering method of the totalisers 48 ��

11�3�2 Quantity monitoring via pulse output OUT1 48 ��

11�3�3 Quantity monitoring via the preset counter OUT1 49 ��

11�3�4 Manual meter reset 49 ��

11�3�5 Time-controlled meter reset 49 ��

11�3�6 Deactivate meter reset 49 ��

11�3�7 Meter reset via external signal 49 ��

11�3�8 Read consumption values 50 ��

11�4 Settings for temperature monitoring 50 ��

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11�4�1 Limit monitoring OUT1 or OUT2 / hysteresis function 50 ��

11�4�2 Limit monitoring OUT1 or OUT2 / window function 50 ��

11�4�3 Frequency signal temperature OUT1 50 ��

11�4�4 Analogue signal temperature OUT2 51 ��

11�5 User settings (optional) 51 ��

11�5�1 Menu language 51 ��

11�5�2 Standard display 51 ��

11�5�3 Standard unit of measurement for volumetric flow 52 ��

11�5�4 Standard unit of measurement for temperature 52 ��

11�5�5 Measured value damping 52 ��

11�5�6 Start-up delay 52 ��

11�5�7 Output logic 52 ��

11�5�8 Low flow cut-off 52 ��

11�5�9 Volumetric flow direction 52 ��

11�5�10 Colour of the characters in the display 53 ��

11�5�11 Error behaviour of the outputs��54

11�5�12 Restore factory setting 54 ��

11�6 Diagnostic functions 55 ��

11�6�1 Read min/max values 55 ��

11�6�2 Simulation ��55

12 Operation ��55

13 Troubleshooting ��56

14 Maintenance, repair and disposal 58 ��

15 Factory setting 59 ��

1 Preliminary note

You will find detailed instructions, technical data, approvals and further

information using the QR code on the unit / packaging or at www�ifm�com�

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1.1 Symbols used

►Instruction

> 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�

Slight reversible injuries may result�

2 Safety instructions

• The device described is a subcomponent for integration into a system�

- The manufacturer is responsible for the safety of the system�

- The system manufacturer undertakes to perform a risk assessment and to

create a 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

manufacturer 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 (→ Functions and features).

• Only use the product for permissible media (→ Technical data).

• If the operating instructions or the technical data are not adhered to, personal

injury and/or damage to property may occur�

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• 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�

3 Getting started

When the unit is used with factory setting the volumetric flow is monitored by

providing a switching signal and an analogue signal�

The process values for volumetric flow and temperature and the meter readings

(current and saved values) as well as error messages can be read from the

display�

All process values and messages are available via the IO-Link interface

irrespective of the output configuration�

A simulation model allows simplified set-up of the sensor�

3.1 Device functions with factory setting

Output OUT1:

• Switching signal for volumetric flow (hysteresis function normally open, PnP,

SP1 and rP1 )→ 15

• Measured value damping 0�6 seconds, no start-up delay and minimal low flow

cut-off

• In case of a fault the output switches OFF

Output OUT2:

• Analogue signal for volumetric flow (measuring range unscaled)

• In case of a fault the analogue signal goes to 3�5 mA

Display:

• Text in English, colour of the characters black/white

• Simultaneous display of current process values for volumetric flow and

temperature and quantity meter

• Low refresh rate, 75 % display brightness

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3.2 Setting options

• Output functions of OUT1 and OUT2 (temperature or volumetric flow;

switching, pulse, frequency, analogue signal, totaliser function)

• Reversal of the volumetric flow direction, monitoring of the volumetric flow

• Response times for volumetric flow measurement (measured value damping,

start-up delay, low flow cut-off)

• Error behaviour of the outputs

• Standard views of the display (unit of measurement, process values, quantity

meter, refresh rate, rotation, brightness, process value-dependent change of

the colour of the characters)

4 Functions and features

The unit monitors liquid media� It detects flow velocity, volume flow (volumetric

flow quantity/time), consumed quantity and medium temperature�

4.1 Pressure Equipment Directive (PED)

The units comply with the Pressure Equipment Directive and are designed and

manufactured for group 2 fluids according to the sound engineering practice�

Use of group 1 fluids on request�

4.2 Applications

Conductive liquids with the following properties:

• Conductivity: ≥ 20 µS/cm

• Viscosity: < 70 mm2/s at 40 °C; < 70 cSt at 104 °F

This is a class A product� This product may cause radio interference in

domestic areas�

►If required, take appropriate EMC screening measures�

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5 Function

• The unit detects the volumetric flow on the magnetic-inductive volumetric flow

measuring principle�

• As additional process value the unit detects the medium temperature with

volumetric flow�

• The unit has an IO-Link interface�

• The unit displays the current process values�

• The unit has many self-diagnostic options�

• A simulation mode allows simplified set-up of the sensor�

5.1 Process measured signals

The unit generates 2 output signals according to the parameter setting:

OUT1: 9 selection options

- Switching signal for volumetric flow

- Switching signal for temperature

- Switching signal for volumetric flow direction

- Switching signal for preset counter

- Pulse signal for quantity meter

- Frequency signal for volumetric flow

- Frequency signal for temperature

- IO-Link

- OFF (output switched to high impedance)

OUT2: 7 selection options

- Switching signal for volumetric flow

- Switching signal for temperature

- Switching signal for volumetric flow direction

- Analogue signal for volumetric flow

- Analogue signal for temperature

- Input for external meter reset signal (InD)

- OFF (output switched to high impedance)

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5.2 Volumetric flow direction

In addition to the flow velocity and the volumetric flow, the unit also detects the

volumetric flow direction�

5.2.1 Determining the volumetric flow direction [Fdir]

An arrow with the text "flow direction" on the unit indicates the positive flow

direction� The volumetric flow direction can be reversed (→ 11.5.9)�

►Use the supplied label to mark the changed volumetric flow direction

(new positive flow direction)�

Volumetric flow... Process value display

corresponds to the marked volumetric flow direction + (positive)

against the marked volumetric flow direction - (negative)

5.2.2 Detection of the volumetric flow direction [dir.F]

When [dir�F] is activated (→ 11.2.5), the volumetric flow direction is indicated by a

switching signal�

The output is switched on until the volumetric flow falls below the set minimum

volumetric flow quantity in negative flow direction (- LFC)(1)�

Then the following applies:

- The output switches ON when volumetric flow is above + LFC (2)�

- The output switches OFF when volumetric flow is below - LFC (3)�

+ LFC

+ Q

- Q

- LFC

1

0

1 32

Fig� 1: Monitoring of the volumetric flow direction by switching signals

+ Q : Volumetric flow in positive flow direction

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- Q : Volumetric flow in negative flow direction

+ LFC: Minimum volumetric flow (low flow cut-off) in positive flow direction

- LFC : Minimum volumetric flow (low flow cut-off) in negative flow direction

LFC → 5.8 Low flow cut-off

Positive volumetric flow direction = marked flow direction,

with factory setting marked by the arrow on the unit or after change via [Fdir] marked

by the supplied label � (→ 5.2.1)

5.3 Consumed quantity monitoring

The unit has three internal quantity meters (= totalisers)� The totalisers

continuously sum up the consumed quantity and provide three process values via

the parameters [Vol�1], [Vol�2] and [Vol�L]:

Totaliser Process value Read access via IO-Link

Vol�1 totaliser 1 cyclical

Vol�2 totaliser 2 acyclical

Vol�L lifetime totalisator

(= meter reading over the whole lifetime)

acyclical

The totalisers only sum up volumetric flow quantities above the LFC value

→ 5.8 Low flow cut-off�

The metering method of the totalisers Vol�1 and Vol�2 can be set so that

volumetric flow values are either ignored, subtracted or totalled in negative

volumetric flow direction � (→ 5.3.1)

The metering method of Vol�L cannot be set� It totals all volumetric flow

quantities irrespective of the volumetric flow direction�

The process values of the quantity meter (totaliser) can be displayed (→ 11.3.8) or

read via the IO-Link interface�

Pulse signals (pulse output) or a switching signal (preset counter) can be used to

monitor the consumed quantity�

→ 5.3.3 Consumed quantity monitoring via pulse signals

→ 5.3.4 Consumed quantity monitoring via switching signal (preset counter)

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5.3.1 Metering method of the quantity meters

The quantity meters take account of the volumetric flow direction when totalling

the consumed quantity (→ Fig. 2). The following metering methods can be defined

via the parameters [FPro1] and [FPro2]:

[FPro1]

[FPro2]*

Metering method

0+ Negative volumetric flow quantity values (against the marked flow direction)

are not taken into account for totalling�

– + Negative volumetric flow quantity values are subtracted from the consumed

quantity�

++ All volumetric flow quantity values are totalled irrespective of the volumetric

flow direction�

* [FPro1] = metering method for totaliser Vol�1

[FPro2] = metering method for totaliser Vol�2

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+ Q

0

– Q

t

Q

V

FPro1 / FPro2 = – +

0

+ Q

– Q

t

Q

V

FPro1 / FPro2 = 0 +

0

+ Q

– Q

t

Q

V

FPro1 / FPro2 = + +

1 2

Fig� 2: Taking account of the volumetric flow direction when totalling the consumed quantity

+ Q = volumetric flow quantity in positive direction

- Q = volumetric flow quantity in negative direction

V = volumetric flow quantity absolute (= sum of negative and positive volumetric flow)

1

Volumetric flow changes to negative direction

2

Volumetric flow changes to positive direction

When the volumetric flow direction is changed a minimum volumetric flow quantity

is taken into account: - LFC in negative direction; + LFC in positive direction (→

5�2�2)�

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5.3.4 Consumed quantity monitoring via switching signal (preset counter)

When the volumetric flow quantity set under [ImPS] has been reached, the output

provides a switching signal� The output remains switched until the meter reset�

After a totaliser reset metering starts again�

The accuracy of the consumed quantity measurement depends on the

accuracy of the volumetric flow measurement�

By setting [rTo1] it is set when the output switches and when the totaliser Vol�1 is

reset:

[rTo1] Output Meter reset

OFF • The output switches when the

volumetric flow quantity set

under [ImPS] is reached�

• The output remains switched

until the meter reset�

• The preset counter is reset

- when a manual reset is made (→

11�3�4) or

- when the maximum display range is

exceeded (overflow)�

1, 2,�� h

1, 2,�� d

1, 2,�� w

• The output switches only when

the volumetric flow quantity set

under [ImPS] is reached within

the set time�

• The output remains switched

until the meter reset�

• If the output is not switched the preset

counter is reset when the set time is

exceeded�

• If the output is switched, the preset

counter is only reset

- when a manual reset is made (→

11�3�4) or

- when the maximum display range is

exceeded (overflow)�

By setting [rTo2] it is set when the totaliser Vol� 2 is reset� The setting of [rTo2] has

no effect on the output:

[rTo2] Output Meter reset

OFF No effect on the output • The preset counter is reset

- when a manual reset is made (→

11�3�4) or

- when the maximum display range is

exceeded (overflow)�

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[rTo2] Output Meter reset

[rTo2] =

1, 2,�� h

1, 2,�� d

1, 2,�� w

No effect on the output • The preset counter is reset

- when a manual reset is made (→

11�3�4) or

- when the maximum display range is

exceeded (overflow) or

- when the set time is exceeded�

5.4 Frequency output

The unit provides a frequency signal that is proportional to the volumetric flow

(velocity or volume flow) or to the medium temperature�

Within the measuring range the frequency signal is between 0 and 10 kHz�

The frequency signal is scalable:

• [FrP1] defines the frequency signal in Hz that is provided when the upper

measured value (MEW or FEP1) is reached�

The measuring range is scalable:

• [FSP1] defines the lower measured value from which a frequency signal is

provided�

Note: [FSP1] cannot be set for volumetric flow measurement�

• [FEP1] defines the upper measured value at which the frequency signal FrP1

is provided�

Minimum difference between [FSP1] and [FEP1]

= 20 % of the final value of the measuring range�

If the measured value is outside the measuring range or in the event of an internal

error, the frequency signals indicated in figure 3 are provided�

For measured values outside the display range or in case of an error, messages

are displayed (OL, cr�OL, Err; )�→

The frequency signal in case of an error is adjustable (→ 11.5.11):

• [FOU] = On defines that the frequency signal goes to the upper final value

(130 % FrP1) in case of an error�

• [FOU] = OFF defines that the frequency signal is 0 Hz in case of an error�

• [FOU] = OU defines that in case of an error the frequency signal reacts as

defined by the current parameters�

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Frequency signals are not available via the IO-Link interface�

Volumetric flow measurement Temperature monitoring

MEWMAW FEP

FrP

=100%

0 %

120 %

100 %

120 %

130 %

130%

OL cr.OL

1

2

5

4

3

FOU=On

FOU=OFF

MEWMAW FEPFSP

FrP

=100 %

120 %

0 %

130 %

1

2

5

4

3

FOU=On

FOU=OFF

OL Err

100 %

120 %

130 %

Fig� 3: Output characteristics frequency output

1

Frequency signal in kHz

2

Measured value (volumetric flow or temperature)

3

Display range

4

Measuring range

5

Scaled measuring range

MAW: Initial value of the measuring range with non-scaled measuring range (with setting of

low flow cut-off for Q: signal output starting at MAW + LFC �)→ 5.8

MEW: Final value of the measuring range with non-scaled measuring range

FSP: Frequency start point with scaled measuring range (only temperature)

FEP: Frequency end point with scaled measuring range

FrP: Frequency signal for upper measured value

OL: Above the display range

cr�OL: Above the detection zone (error)

Err: The unit is in the error state

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5.5 Analogue output

The unit provides an analogue signal that is proportional to the volumetric flow

(velocity or volume flow) or to the medium temperature�

Within the measuring range the analogue signal is between 4 and 20 mA�

The measuring range is scalable:

• [ASP2] defines at which measured value the output signal is 4 mA�

• [AEP2] defines at which measured value the output signal is 20 mA�

Minimum difference between [ASP2] and [AEP2]

= 20 % of the final value of the measuring range�

If the measured value is outside the measuring range or in the event of an internal

error, the current signal indicated in figure 4 is provided�

For measured values outside the display range or in case of an error, messages

are displayed (cr�UL, UL, OL, cr�OL, Err; )�→

The analogue signal in case of an error is adjustable (→ 11.5.11):

• [FOU] = On defines that the analogue signal goes to the upper final value

(21�5 mA) in case of an error�

• [FOU] = OFF defines that the analogue signal goes to the lower final value

(3�5 mA) in case of an error�

• [FOU] = OU defines that in case of an error the analogue signal reacts as

defined by the current parameters�

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MEWMAW AEPASP

-120Q [% MEW]

[°C]T -40 -20 90

1 00

110

-130

-50

[°F]-40 -4 194 212 230-58

1201000 130

4

3,8

3,5FOU=OFF

20

20,5

21,5

[mA]

FOU=On

1

2

6

cr.UL UL OL cr.OL

3

4

5

Fig� 4: Characteristics of the analogue output according to the standard IEC 60947-5-7

1

Analogue signal

2

Measured value (volumetric flow or temperature)

3

Detection zone

4

Display range

5

Measuring range

6

Scaled measuring range

Q: Volumetric flow (negative volumetric flow quantity value = volumetric flow against the

marked flow direction)�

T: Temperature

MAW: Initial value of the measuring range with non-scaled measuring range� (With setting

of low flow cut-off for Q: signal output starting at MAW + LFC �)→ 5.8

MEW: Final value of the measuring range with non-scaled measuring range

ASP: Analogue start point with scaled measuring range

AEP Analogue end point with scaled measuring range

UL: Below the display range

OL: Above the display range

cr�UL: Below the detection zone (error)

cr�OL: Above the detection zone (error)

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5.6 Switching output

OUTx changes its switching status if it is above or below the set switching limits

(flow velocity or volume flow or temperature)� Hysteresis or window function can

be selected� Example of volumetric flow monitoring:

SP

rP FL

FH

Fig� 5: hysteresis function Fig� 6: window function

SP = set point

rP = reset point

HY = hysteresis

Hno / Fno = NO (normally open)

FH = upper limit

FL = lower limit

FE = window

Hnc / Fnc = NC (normally closed)

When the hysteresis function is set, the set point (SP) is defined first and

then the reset point (rP) which must have a lower value� If only the set point

is changed, the reset point is changed automatically; the difference remains

constant�

When the window function is set, the upper limit (FH) and the lower limit

(FL) have a fixed hysteresis of 0�25 % of the final value of the measuring

range� This keeps the switching status of the output stable if the volumetric

flow varies slightly�

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5.7 Measured value damping

The damping time [dAP] enables setting after how many seconds the output signal

has reached 63 % of the final value if the volumetric flow value changes suddenly�

The set damping time stabilises the switching outputs, the analogue outputs, the

display and the process value transmission via the IO-Link interface�

The damping time is added to the response time of the sensor (→ Technical

data)�

The signals UL, cr�UL, OL and cr�OL are determined by taking the damping (→ )

time into account�

The damping time only has an effect on the volumetric flow measurement�

5.8 Low flow cut-off

With the function low flow cut-off [LFC] it is possible to suppress low volumetric

flow values� Volumetric flow below the LFC value is evaluated by the sensor as

standstill (Q = 0)�

5.9 Start-up delay

The start-up delay [dSt] influences the switching outputs of the volumetric

flow monitoring�

If the start-up delay is active ([dSt] > 0), the following applies: As soon as the

volumetric flow quantity exceeds the LFC value , the following processes (→ 5.8)

are carried out:

> The start-up delay is activated�

> The outputs switch as programmed: ON for NO function, OFF for NC function�

After activation of the start-up delay there are 3 options:

1� The volumetric flow increases quickly and reaches the set point / good range

within [dSt]�

> Outputs remain active�

2� The volumetric flow increases slowly and does not reach the set point / good

range within [dSt]�

> Outputs are reset�

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3� Volumetric flow falls below [LFC] within [dSt]�

> Outputs are reset at once; [dSt] is stopped�

Fig� 7: dSt for hysteresis function (Example)

Condition Reaction

1 Volumetric flow quantity Q reaches LFC dSt starts, output becomes active

2 dSt elapsed, Q reached SP Output remains active

3 Q below SP but above rP Output remains active

4 Q below rP Output is reset

5 Q reaches again LFC dSt starts, output becomes active

6 dSt elapsed, Q has not reached SP Output is reset

7 Q reaches SP Output becomes active

22

Fig� 8: dSt for window function (Example)

Condition Reaction

1 Volumetric flow quantity Q reaches LFC dSt starts, output becomes active�

2 dSt elapsed, Q reached good range Output remains active

3 Q above FH (leaves good range) Output is reset

4 Q again below FH Output becomes active again

5 Q below FL (leaves good range) Output is reset again

6 Q reaches again LFC dSt starts, output becomes active

7 dSt elapsed, Q has not reached good

range

Output is reset

8 Q reaches good range Output becomes active

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5.10 Simulation

With this function, the process values volumetric flow, temperature and meter

reading of the totaliser are simulated and their signal chain is checked�

When the parameters cr�UL, UL, OL und cr�OL are set, process values that lead to

an error message or warning can be simulated �(→ )

When the simulation is started, the values of the totalisers 1-3 are frozen and the

simulated totaliser is set to 0� The simulated volumetric flow value then has an

effect on the simulated totaliser� When the simulation is ended, the initial totaliser

values are restored�

The simulation has no effect on the current process values� The outputs

operate as previously set�

During the simulation the original totaliser value remains saved without any

changes even if there is a real volumetric flow�

During the simulation no error message of the current application is

available� They are suppressed by the simulation�

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5.12 IO-Link

This unit has an IO-Link communication interface which enables direct access to

process and diagnostic data� In addition it is possible to set the parameters of the

unit while it is in operation� Operation of the unit via the IO-Link interface requires

an IO-Link master�

With a PC, suitable IO-Link software and an IO-Link adapter cable communication

is possible while the system is not in operation�

The IODDs necessary for the configuration of the unit, detailed information about

process data structure, diagnostic information, parameter addresses and the

necessary information about the required IO-Link hardware and software can be

found at www�ifm�com�

The IO-Link interface provides the following additional functions using suitable

hardware and software:

- Remote parameter setting of the unit

- Noise-immune signal transmission without measured value losses

- Transmission of the parameter settings to a replaced unit or to other units of

the same type

- Simultaneous reading of all process values (volumetric flow, temperature,

totaliser), the binary switching signals and the device status

- Comprehensive display of error and event messages (events)

- Paperless logging of parameter sets, process values and diagnostic

information

5.12.1 Additional functions via IO-Link

The following functions are only available via the IO-Link interface:

Function Explanation

Flash ON /

Flash OFF

Standard command for localising the sensor in the system�

When activated:

> Switching status LEDs flashing�

> Display: "IO-Link" (green, flashing)

26

Function Explanation

Flow Override When activated: simulation volumetric flow standstill (Q = 0)

> All outputs behave as with volumetric flow standstill�

During the simulation the original totaliser value remains

saved without any changes even if there is a real

volumetric flow�

Lock via

system

When activated: setting buttons locked via parameter setting

software, parameter change rejected�

6 Installation

CAUTION!

If the medium temperature is above 50 °C (122 °F) parts of the

housing can increase in temperature to over 65 °C (149 °F)�

> Risk of burns�

►Protect the housing against contact with flammable substances

and unintentional contact�

►Apply the supplied warning label to the sensor cable�

►Ensure that the system is free of pressure during installation�

►Ensure that no media can leak at the mounting location during

installation�

The unit can be installed independently of the orientation if the following is

ensured:

- No air bubbles can form in the pipe system�

- The pipes are always completely filled�

Calming sections on the sensor's inlet or outlet side are not necessary�

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6.1 Recommended installation position

►Install the unit so that the measuring pipe is always completely filled�

►Install in front of or in a rising pipe�

F

6.2 Non-recommended installation position

F

Directly in front of a falling pipe In a falling pipe

28

F

Directly in front of the spout of a pipe On the suction side of a pump

F

F = volumetric flow direction

At the highest point of the pipe system

6.3 Ground

If installed in an ungrounded pipe system (e�g� plastic pipes), the unit must

be grounded (functional earth)�

Ground brackets for the M12 connector are available as accessories

→ www.ifm.com.

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6.4 Installation in pipes

The units with a G thread can be installed in the pipes using adapters�

Information about the available mounting accessories at www�ifm�com�

A correct fit of the unit and ingress resistance of the connection are only ensured

using ifm adapters�

A AD DC CB B

1� Grease the threads of the process connection, adapter and sensor� Use a

lubricating paste which is suitable and approved for the application�

2� Screw the adapter (B) into the pipe (A)�

3� Place the seals (C) and install the unit according to the marked flow direction�

4� Screw the adapter (B) with the process connections (D) until it is hand-tight�

5� Tighten the two adapters in opposite direction:

- tightening torque DN15��DN25: 30 Nm

- tightening torque DN6: 15 Nm

After installation air bubbles in the system can affect the measurement�

►Corrective measure: Rinse the system after installation for ventilation�

30

7 Electrical connection

The unit must be connected by a qualified electrician�

Voltage supply according to EN 50178, SELV, PELV�

►Disconnect power�

►Connect the unit as follows:

BN

WH

BK

BU

4

1

3

2OUT2

L+

L

OUT1

Colours to DIN EN 60947-5-2

BK: black; BN: brown; BU: blue; WH: white

Pin Connection

4

(OUT1)

• switching signal for volumetric flow

• switching signal for temperature

• switching signal for volumetric flow direction

• switching signal for preset counter

• pulse signal for quantity meter

• frequency signal for volumetric flow

• frequency signal for temperature

• IO-Link

• OFF

2

(OUT2/InD)

• switching signal for volumetric flow

• switching signal for temperature

• switching signal for volumetric flow direction

• analogue signal for volumetric flow

• analogue signal for temperature

• input for external meter reset signal (InD)

• OFF

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Circuit examples:

12 x PnP 22 x nPn

L

L+

3 BU

4 BK

2 WH

1 BN

L

L+

3 BU

4 BK

2 WH

1 BN

31 x PnP / 1 x analogue 41 x nPn / 1 x analogue

L+

L

3 BU

4 BK

2 WH

1 BN

L+

L

3 BU

4 BK

2 WH

1 BN

32

8 Operating and display elements

3

1 2

4

5

1 and 2: Switching status LEDs

• LED 1 = switching status OUT1 (on if output 1 is switched)

• LED 2 = switching status OUT2 (on if output 2 is switched)

3: TFT display

• Display of the current process values (volumetric flow, temperature, totaliser)

• Display of the parameters and parameter values

4: Buttons [▲] and [▼]

• Select parameter

• Change parameter value (hold button pressed)

• Change of the process value display in the normal operating mode (RUN mode)

• Locking / unlocking (buttons pressed simultaneously > 10 seconds)

5: Button [

●

] = Enter

• Change from the RUN mode to the main menu

• Change to the setting mode

• Apply the set parameter value

Display illumination:

• Device temperature > 70 °C: brightness automatically reduced�

• Device temperature ≥ 100 °C: display automatically switched off.

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9 Menu

9.1 Process value display (RUN)

It is possible to select three process value indications during operation:

► Press button [▲ ] or [▼].

> The display changes between the standard indication and two other views�

> After 30 s, the device returns to the standard display�

Running��

20�00

L/

min

1

Running��

Totaliser 1

1000.0

l

Last Totaliser 1

0.000

l

Time since reset

---

3

Running��

20.00

L/min

30.0

°C

1000.0

l

2

Totaliser 1

1: Standard display as set under [diS�L] (→ 11.5.2)

2: Overview of all process values

3: Overview totaliser values

34

9.2 Main menu

Process value display (RUN)

EF

rP1

SP1 FH1

FL1

EF rES, Info, OUT1, OUT2, CFG, TOTL, MEM, DIS, COLR, SIM

ImPS

ImPR

FSP1

FEP1

FrP1

AEP2

ASP2 SP2

rP2

FH2

FL2

DIn2

Explanation of the parameters → 9.4 Submenu OUT1 and OUT2

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9.3 Extended functions EF

Main menu

rES

Info

OUT1

OUT2

CFG

TOTL

MEM

DIS

COLR

SIM

----

EF

Parameter Explanation and setting

options

rES Restore factory setting

Info Display device information

OUT1 Configuration output 1

OUT2 Configuration output 2

CGF Configuration basic settings

TOTL Display totaliser values

MEM Display min�/max� process

values

DIS Configuration display view

COLR Configuration display colour

SIM Configuration simulation mode

36

9.4 Submenu OUT1 and OUT2

Main menu

rES

Info

OUT1

OUT2

CFG

TOTL

MEM

DIS

COLR

SIM

EF

SEL1

ou1

FOU1

OUT1

OU OFFOn

Hno Hnc Fno Fnc ImP FRQ dir�FOFF

TEMPFLOW

rP1

SP1 FH1

FL1

ImPS

ImPR

FSP1

FEP1

FrP1

SEL2

ou2

FOU2

OUT2

OU OFFOn

Hno Hnc Fno Fnc In.D Idir�FOFF

TEMPFLOW

AEP2

ASP2 SP2

rP2

FH2

FL2

DIn2 +EDG

-EDG

HIGH

LOW

38

Explanation submenu OUT2

Parameter Explanation and setting options

SEL2 Standard measured variable for evaluation by OUT2:

FLOW (volumetric flow) or TEMP (temperature)

ou2 Output function for OUT2:

• 

• 

Hno = switching signal with hysteresis function normally open

Hnc = switching signal with hysteresis function normally closed

Fno = switching signal with window function normally open

Fnc = switching signal with window function normally closed

 = input for external meter reset signal

OFF = output OFF (of high impedance)

dir�F = detection of the volumetric flow direction

= analogue signal 4��20 mA�

SP2 Set point for OUT2

rP2 Reset point for OUT2

FH2 Upper limit for OUT2

FL2 Lower limit for OUT2

ASP2 Analogue start point for OUT2

AEP2 Analogue end point for OUT2

 Reset of totaliser Vol�1 via external signal: +EDG, -EDG, HIGH, LOW

FOU2 Status of OUT 2 in case of an internal fault:

OU = output switches irrespective of the fault as defined with the

parameters�

On = output switches ON / analogue signal goes to 21�5 mA�

OFF = output switches OFF / analogue signal goes to 3�5 mA�

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9.5 Submenu CFG and TOTL

Main menu

rES



OUT1

OUT2

CFG

TOTL

MEM



COLR



EF





dAP

dSt

LFC



CFG

+ -

°C

---

°F

  

m3/h m/s

    











1

2

L

TOTL



1 h 2 h 3 h 4 h 5 h 

OFF

1 h 2 h 3 h 4 h 5 h 

OFF

-+ 0+ ++

40

Explanation submenu CFG

Parameter Explanation and setting options

uni�F Standard unit of measurement for volumetric flow:

m/s, l/min*, m3/h, gal/min, gal/h, fl oz/min, ft/s

(*SM4: ml/min)

uni�T Standard unit of measurement for temperature: °C or °F

dAP Measured value damping for switching output in seconds (only volumetric

flow)

dSt Start-up delay in seconds (only volumetric flow)

P-n Output logic: PnP or nPn

LFC Low flow cut-off

Fdir Volumetric flow direction: + or –

Explanation submenu TOTL

Parameter Explanation and setting options

rTo1 Reset of totaliser Vol�1: OFF, res�T or time

rTo2 Reset of totaliser Vol�2: OFF, res�T or time

FPro1 Metering method of totaliser Vol�1: 0+ or – + or ++

FPro2 Metering method of totaliser Vol�2: 0+ or – + or ++

Vol�1 Display of current meter reading totaliser 1

Vol�2 Display of current meter reading totaliser 2

Vol�L Display of current meter reading over the whole lifetime

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9.6 Submenu MEM and DIS

Main menu

rES

Info

OUT1

OUT2

CFG

TOTL

MEM

DIS

COLR

SIM

Lo.F

Hi.F

Lo.T

Hi.T

MEM

...

EF

LanG

diS.L

diS.U

diS.R

diS.B

DIS

L2.Temp L2.Totl L3L1

d1 d2 d3

DE EN FR

0 90 180 270

25 50 75 100 OFF

42

Explanation submenu MEM

Parameter Explanation and setting options

Lo�F Min� value of the volumetric flow quantity measured in the process

Hi�F Max� value of the volumetric flow quantity measured in the process

Lo�T Min� value of the temperature measured in the process

Hi�T Max� value of the temperature measured in the process

Explanation submenu DIS

Parameter Explanation and setting options

LanG Menu language: DE or EN or FR

diS�L Standard process value display (in selected standard unit of measure-

ment)

L1 = current process value for volumetric flow

L2�Temp = current process value for volumetric flow and temperature

L2�Totl = current process value for volumetric flow and totaliser Vol�1

L3 = current process value for volumetric flow and temperature and

totaliser Vol�1

diS�U Display refresh rate:

d1 = high

d2 = medium

d3 = low

diS�R Display rotation: 0°, 90°, 180°, 270°

diS�B Display brightness: 25 %, 50 %, 75 %, 100 %, OFF (measured value

display in the RUN mode switched off)

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9.7 Submenu COLR and SIM

Main menu

rES

Info

OUT1

OUT2

CFG

TOTL

MEM

DIS

COLR

SIM

EF

S

�FLW

S�Tim

S.On

SIM

---

OL cr�OL cr�UL UL

S

�TMP

---

OL

1 2 3 4 5 10 ��

cr�OL

OFF On

cr�UL UL

coL.F

cFH�F ---

---

cFL�F

coL.T

cFH�T

COLR

cFL�T

coL.V

bk/wh red r-cF G-cFgreen yellow

bk/wh red green yellow

bk/wh red r-cF G-cFgreen yellow

44

Explanation submenu COLR

Parameter Explanation and setting options

coL�F Colour of the characters in the display for the volumetric flow value

cFH�F Upper limit of the colour change for volumetric flow measurement

cFL�F Lower limit of the colour change for volumetric flow measurement

coL�T Colour of the characters in the display for the temperature value

cFH�T Upper limit of the colour change for temperature measurement

cFL�T Lower limit of the colour change for temperature measurement

coL�V Colour of the characters in the display for totaliser value Vol�1

bk/wh Permanently black/white

yellow Permanently yellow

green Permanently green

red Permanently red

r-cF Display colour red between the limits cFL��cFH, outside colour change

to green

G-cF Display colour green between the limits cFL��cFH, outside colour change

to red

Explanation submenu SIM

Parameter Explanation and setting options

S�FLW Simulated volumetric flow value

S�TMP Simulated temperature value

cr�UL Measured value below the detection zone error message→

UL Measured value below the display range warning→

OL Measured value above the display range warning→

cr�OL Measured value above the detection zone error message→

S�Tim Simulation time in minutes

S�On Simulation status: OFF, On

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10 Set-up

After power on and expiry of the power-on delay time of approx� 5 s the unit

is in the Run mode (= normal operating mode)� It carries out its measurement

and evaluation functions and generates output signals according to the set

parameters�

• During the power-on delay time the outputs are switched as programmed:

- ON with normally open function (Hno / Fno)

- OFF with normally closed function (Hnc / Fnc)

- ON for detection of flow direction (dir�F)

- OFF for frequency output (FRQ)

- OFF for consumed quantity monitoring (ImP)

• If output 2 is configured as analogue output, the output signal is at 20 mA

during the power-on delay time�

11 Parameter setting

CAUTION

If the medium temperature is above 50 °C (122 °F) parts of the

housing can increase in temperature to over 65 °C (149 °F)�

> Risk of burns�

►Do not touch the device with your hands�

►Use another object (e�g� a ballpoint pen) to carry out settings

on the unit�

Parameters can be set before installation or during operation�

If you change parameters during operation, this will influence the function

of the plant�

►Ensure that there will be no malfunctions in your plant�

During parameter setting the unit remains in the operating mode� It continues

to monitor with the existing parameter until the parameter setting has been

completed�

The parameters can also be set via the IO-Link interface�

46

11.1 Parameter setting in general

1� Change from the RUN mode to the main menu [

●

]

2� Select the requested parameter [ ] or [ ]▲ ▼

3� Change to the setting mode [

●

]

4� Modification of the parameter value [▲] or [▼] > 1 s

5� Apply the set parameter value [

●

]

6� Return to the RUN mode > 30 seconds (timeout)

If [ Locked via Communication] is displayed when you try to change a 

parameter value, an IO-Link communication is active (temporary locking)�

If [ Locked via system] is displayed, the sensor is permanently locked 

via software� This locking can only be removed with a parameter setting

software�

11.1.1 Select submenu

1� Press [

●

] to change from the process value display to the main menu�

2� Press [▼] to select the menu EF and press [

●

]�

3� Press [▼] to select the submenu and press [

●

]�

11.1.2 Change to the process value display (RUN mode)

There are 2 possibilities:

1� Wait for 30 seconds (→ 11.1.4 Timeout)�

2� Press [▲] or [▼] to go to the end of the menu and change to the next higher

menu�

11.1.3 Locking / unlocking

The unit can be locked electronically to prevent unintentional settings� On delivery:

not locked�

Locking:

►Make sure that the unit is in the normal operating mode�

► Press [▲] and [▼] simultaneously for 10 s until [Set menu lock] is displayed�

During operation: [ ] is displayed if you try to change parameter values�

Merk:	IFM
Categorie:	Niet gecategoriseerd
Model:	SM7621

IFM SM7621 Handleiding

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