Mollet LF20 Series User manual

Instruction for parameterisation
Display and input keys | Key functions | Menu levels | 02
LF20 first switch-on | Hardware locking mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 03
LF20 parameterise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 04
Basic setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05
Signal inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06
Relay output 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 07
Relay output 3 and 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08
Relay output - Pulse settings - Reset pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09
Measurement parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Measurement parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Current output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Safety distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Security distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Linearisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Numerical entry and text input . . . . . .
Page
Index
M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-01 01
Yo-Yo sensing level measurement
continuous level indication for bulk solids
LF
MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
S/N serial number silo number / silo name

LF20
M LLET
start
man.
measured$value$$$000
$$$$$$63.42$%
~~~~~~~~~~~~~_______
measured$value$$$000
$$$$$$63.42$%
~~~~~~~~~~~~~_______
emty$calibr.$$$$$001
$$$$$18.600$m
distance$flange$to
min.$filling
group$selection$$00&
µbasic$setup~~~~~~~
$inputs and outputs
$measurement$param.
Key functions
Key(s)
02 LF-PA-02 02/14 © by MOLLET
Display and input keys
M LLET
Füllstandtechnik
GmbH
Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
Menu consists of two levels.
1. The level of the parameter groups PG
These divide the menu into groups.
2. The level of the parameters P
Here parameters can be selected or numerical values can be insert
and stored.
In order to provide a improved orientation for each parameter a number is
shown in the display and in this instruction.
Selection list
Bar graph
Measurement value
Measurement unit
Parameter / position
Help text
start
man.
+
+
or
Menu levels
023 Parameter P
normal$or short$$023
µnormal~~~~~~~~~~~~~
$short
Start
extern
Parameter group PG 02&
- Downwards navigation in the selection list
- Edit the numerical values within a function
Function
- Upwards navigation in the selection list
- Edit the numerical values within a function
- Navigation to the right within the group selection
- Downwards navigation within the parameter groups
- Confirmation
- Navigation to the left within the group selection
- Upwards navigation within the parameter groups
- Increases the contrast of the display
- Decreases the contrast of the display
- Starts measurement process
in case display shows measured value [000]
Key(s)
1. Pressure on one of these keys puts the blinking input
mask on the first position.
Operation
2. Select with the keys the required sign.
3. Pressing the key puts the blinking input mask on the
next position.
4. Repeat step 2. and 3. until the value is completely
inserted or changed.
5. In case & appears in the input mask the value is stored
by pressing this key.
6. Pressing both keys at the same time interrupts insert
procedure. The edit mode is left.
+
Select parameter display e.g. full calibration [003].
Numerical entry and text input
~
full$calibration$003
$$10.80$$$$m
measuring$range
max.$=$empty$-$bd
+
Yo-Yo sensing level measurement
LF20

Select language
Preset parameter English
Disable parameterisation pressing at the same time
@ -symbol is shown
+ +
Hardware locking mechanism
M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-03 03 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
Initialization
Jan 20 2014
LF20
V01.01.12-X3
A84A1AD1N1
Language$$$$$$$$$060
µEnglish~~~~~~~~~~~~
$Deutsch
$Francais
distance$unit$$$$083
µm~~~~~~~~~~~~~~~~~~
$ft
$in
measured$value$$$000
$$$$$63.42 %
~~~~~~~~~~~_________
5
sek
5
sek
LF20 first switch-on
measured$value$$$000
$$$$$63.42 %
~~~~~~~~~~~_________
unlock$parameter$074
@$hardware$locking
measured$value$$$000
@
$$$$$63.42 %
~~~~~~~~~~~_________
+ +
Initialization
Day of production
is shown on the first switch-on
automatic sequence
060 Language
083 distance unit
Type of device
Device version (hard- and software)
Order code (device configuration)
Select distance unit
Preset parameter m (meter)
Last measurement value is shown.
A measuring procedure has to be operated in order to get an actual measuring
value.
Inputs no more possible.
Measuring procedures can take place.
Deblock parameterisation pressing at the same time
+ +
Please note selection.
Yo-Yo sensing level measurement
LF20
 English
 Deutsch
 Français
 Japanisch
 m
 ft
 in

M LLET
Füllstandtechnik
GmbH
04 LF-PA-04 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
LF20 parameterise
+
$current$output
$safety$seting
$linearization
$display
$diagnostics
$system$parameters
$service
group$selection$$00&
µbasic$setup~~~~~~~~
$inputs$and$outputs
$measurement$param.
group$selection$$00&
µbasic$setup~~~~~~~~
group$selection$$02&
µmeasurement$param.~
group$selection$$03&
µcurrent$output~~~~~
group$selection$$04&
µsafety$seting~~~~~~
group$selection$$05&
µlinearization~~~~~~
group$selection$$06&
µdisplay~~~~~~~~~~~~
group$selection$$07&
µdiagnostics~~~~~~~~
group$selection$$08&
µsystem$parameters~~
group$selection$$0D&
$service$$$$$$$$$20
group$selection$$01&
µinputs$and$outputs~
measured$value$$$000
$$$$$63.42 %
~~~~~~~~~~~_________
PG 00&
page LF-PA-05
PG 01&
page LF-PA-06
PG 02&
page LF-PA-10
PG 03&
page LF-PA-14
PG 04&
page LF-PA-15
PG 05&
page LF-PA-18
PG 06&
page LF-PA-19
PG 07&
page LF-PA-20
PG 08&
page LF-PA-22
Back from page
LF-PA-05 to LF-PA-22
+
Move from measurement value indication to the group selection and
choose the required parameter group [PG].
At the time of the first start of operation and after
any reset (see parameter [073]) the parameters in
group basic setup [PG00] have to be inserted. *)
!!!
*)
.
In addition for measurements are alternatively required
(see page LF-PA06)
- selection of „start measurement“ for input 1 [010] or 2 [012]
and wiring of the signal input accordingly
- for measurement type [020] the selection „periodical“.
In order to protect sensing weight from spillage during filling
process and quick discharging
- select „bolting“ for input 1 [010] or 2 [012] and wire the signal
input accordingly
(see page LF-PA06)
Complex measurement tasks require further settings.
In most cases this basic setup is sufficient for a successful
start of operation
Yo-Yo sensing level measurement
LF20

+
+
+
+
Basic setup - parameter group PG 00&
M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-05 05 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
empty$calib.$$$$$001
$$$$$12.00$m
distance$flange$to
min.$filling
block$distance$$$002
$$$$$$$0.72$m
distance$flange$to
bottom weight
full$calibration$003
$$$$$10.80$m
measuring$range
max.$=$empty$-$bd
measurement type$020
µsingle$cycle~~~~~~~
$periodical
$manual
dist./meas.value$004
distance$$9.90 m
meas.val$19.45$%
Empty calibration (001)
Block distance
[002]
LF20
Full calibration [003]
$$$Return$to
$$$group$selection
PG 00&
page LF-PA-04
page LF-PA-04
Insert length:
Distance from flange bottom line to end of sensing weight.
Default value 0.72 m
Insert length:
Distance from flange bottom line to minimum fill level.
Default value length of measuring tape of LF20
Select measuring type (please see explanation below)
single cycleDefault value
020 measurement type
003 full calibration
__________ m / ft / in
001 empty calibration
__________ m / ft / in
002 block distance
__________ m / ft / in
Please see drawings below!
Please note setup values.
Measuring range
empty
full
Measuring type Funktionen der Auswahl
Single cycle - Start by pressing start-key at LF20
- Start by signal input 1 [010] or 2 [012]
Periodical - Start by time control of the LF20 depending on
time interval in P [021] and time unit in P [022]
Manual -Measurement cycles can be started with
key at the LF20.
Discription
see page
LF-PA-06
LF-PA-11
LF-PA-12
022-0601
Flange bottom line
Minimum filling level
Maximum filling level
Minimum
move distance  0.2 m
In case the silo height is not known, the empty calibration can be
determined by manual operation (see page LF-PA-12).
start
man.
Measuring information
Distance between flange bottom line and product
Actual measuring value
Distance in m, ft or in
Yo-Yo sensing level measurement
LF20

 periodical
 manual
single cycle
Insert length of measuring range:
Empty calibration [001] block distance [002]  0.2 m
maximal empty calibration [001] block distance [002] (bd)
Default value length of measuring tape block distance

010 input 1
012 input 2
+
+
M LLET
Füllstandtechnik
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06 LF-PA-06 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
input 1$$$$$$$$$$010
µnot$used~~~~~~~~~~~
$bolting
$start$measurement
input
not$used~~~~~~~~~~~
$bolting
$start$measurement
2$$$$$$$$$$012
µ
PG 01&
page LF-PA-04
Signal inputs - PG 01&parameter group
Select function for input 1.
Default value not used
Please note selection.
Select function for input 2.
Default value not used
Input 1 [010] or 2 [012] see LF-GI-08
Parameter Function of input 1 or 2
bolting If there is a signal at the input, the LF20 is blocked for further
measurements.
A running measurement is cancelled immediately.
The sensing weight is moved into the upper limit position.
Avoids e.g.
.
start
Can be used for the start by a key in a control room or by an
external control.
!!! The external start key is connected to
LF20)
spillage of the sensing weight during filling
process
If there is a signal at the input, the LF20 starts a new
measurement measurement.
input 1 [010] in the device
version with option 10.2 (external start key mounted at the
Default value with option 10.2start measurement
P 014
page LF-PA-07
Yo-Yo sensing level measurement
LF20



not used
bolting
start measurement



not used
bolting
start measurement

M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-07 07 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
+
$reset$pulse
$running$up
$top$position
$measuring
relay output 1$$$014
µalarm~~~~~~~~~~~~~~
$service interval
$counter$pulses
+
$
$top$position
$measuring
$alarm
running$up
relay output
µservice interval~~~
$counter$pulses
$reset$pulse
2$$$01A
+
relay output 1$$$014
µcounter$pulses~~~~~
relay output 1$$$014
µreset$pulse~~~~~~~~
P 015
page LF-PA-09
P 019
page LF-PA-09
relay output 2$$$01A
µcounter$pulses~~~~~
relay output 2$$$01A
µreset$pulse~~~~~~~~
P 015
page LF-PA-09
P 019
page LF-PA-09
$$$Return$to
$$$group$selection
page LF-PA-04
P 016 or P 019
page LF-PA-09
Select function for relay output 1.
(see below description of functions)
Default value alarm
Select function for relay output 2.
(see below description of functions)
Default value service interval
014 1relay output
01A relay output 2
Relay output 1 and 2 parameter group - PG 01&
P 012
page LF-PA-06
relay output 1 [014] or relay output 2 [01A]
Function Relay switches
alarm as soon as an error is detected.
(e.g. tape breakage or spillage of the sensing weight)
service interval when the value set in the service interval function [024]
is reached.
counter pulses at the pulse value set in parameter [015] and
with the counter pulse length set in parameter [016].
reset pulse at the reset pulse length set in parameter [019] before a
new measurement starts.
This output can be used to reset an external counter.
running up when running up the sensing weight.
top position as soon as the upper limit position of the sensing weight is
reached (end of measurement).
measuring during the entire measuring period.
P 01C
page LF-PA-08
Option 7.C
(4 relay outputs)
2 additional relay
P 01B
page LF-PA-08
Please note selection.
P 016 or P 019
page LF-PA-09
Yo-Yo sensing level measurement
LF20

 service interval
 counter pulses
 reset pulse
 running up
 top position
 measuring
alarm

 service interval
 counter pulses
 reset pulse
 running up
 top position
 measuring
alarm

Relay output 3 and 4 - parameter group
Relay output 3 [01B] and relay output 4 [01C] are optional available.
PG 01&
M LLET
Füllstandtechnik
GmbH
08 LF-PA-08 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
+
$
$running$up
$top$position
$measuring
reset$pulse
relay output
µalarm~~~~~~~~~~~~~~
$service interval
$counter$pulses
3$$$01B
+
$
$running$up
$top$position
$measuring
$
reset$pulse
relay output
µalarm~~~~~~~~~~~~~~
$service interval
$counter$pulses
4$$$01C
+
relay output 3$$$01B
µcounter$pulses~~~~~
relay output 3$$$01B
µreset$pulse~~~~~~~~
P 015
page LF-PA-09
P 019
page LF-PA-09
relay output 4$$$01C
µcounter$pulses~~~~~
relay output 4$$$01C
µreset$pulse~~~~~~~~
P 015
page LF-PA-09
P 019
page LF-PA-09
Select function for relay output 3.
(see below description of functions)
Default value measuring
Select function for relay output 4.
(see below description of functions)
Default value top position
P 01A and P 019
page LF-PA-07
P 014 or P 01A
page LF-PA-06
Please note selection.
P 016 or P 019
page LF-PA-09
P 016 or P 019
page LF-PA-09
01B 3relay output
01C 4relay output
relay output 1 [014] or relay output 2 [01A]
Function Relay switches
alarm as soon as an error is detected.
(e.g. tape breakage or spillage of the sensing weight)
service interval when the value set in the service interval function [024]
is reached.
counter pulses at the pulse value set in parameter [015] and
with the counter pulse length set in parameter [016].
reset pulse at the reset pulse length set in parameter [019] before a
new measurement starts.
This output can be used to reset an external counter.
running up when running up the sensing weight.
top position as soon as the upper limit position of the sensing weight is
reached (end of measurement).
measuring during the entire measuring period.
Yo-Yo sensing level measurement
LF20

 service interval
 counter pulses
 reset pulse
 running up
 top position
 measuring
alarm

 service interval
 counter pulses
 reset pulse
 running up
 top position
 measuring
alarm

P 01A, return or option
page LF-PA-07
P 014, P 01A, P 01B or P 01C
page LF-PA-07
+
M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-09 09 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
Relay output - pulse settings parameter - P 016 - P 015
pulse$weight$$$$$015
$$$$$$$$10
length per pulse
output$=$value*2,5cm
pulse$length$$$$$016
$$$$$$$$50 ms
length$of$the
counter$pulse
reset$pulse$$$$
$$$$$$$$300 ms
length$of$the
reset$pulse
$$019
P 014, P 01A, P 01B or P 01C
page LF-PA-07
Insert pulse weight.
Default value 1
Range of values 1 ... 20 (2,5 cm ... 50 cm)
Insert pulse length.
Default value 50 ms
Range of values depended on pulse values [015]
Please note setup values.
015 pulse weight
________________
016 pulse length
____________ ms
Insert length of reset pulse.
Default value 300 ms
Range of values 30 ms ... 1000 ms
019 reset pulse
____________ ms
Counting pulse
Pulse length
Pulse
value 8
00,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 m
Move distance of the measuring tape
0,2 m
ms
Pulse value x 2,5 cm = Move distance of the measuring tape per pulse
Example
Pulse value 8 (8x2,5 cm) issues a counting pulse every 0.2 m.
Pulse value [015] Range of pulse length [016]
1 30 ms ... 100 ms
2 30 ms ... 250 ms
3 30 ms ... 400 ms
4 ... 20 30 ms ... 550 ms
Relay output - reset pulse - parameter P 019
+
022-0602
P 01A, return or option
page LF-PA-07
Yo-Yo sensing level measurement
LF20

+
+
M LLET
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GmbH
10 LF-PA-10 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
Measurement parameters parameter group - PG 02&
normal$or$short$$023
µnormal~~~~~~~~~~~~~
$short
service$interval$024
$$$$$$$45000
num.$of$measurements
til$tape/rope$change
serv.int.counter$025
$$$$$$$5678
measurement$type$020
µsingle$cycle~~~~~~~
$periodical
$manual
PG 02&
page LF-PA-04
+
measurement$type$020
µperiodical~~~~~~~~~
P 021
page LF-PA-11
P 022
page LF-PA-11
+
normal$or$short$$023
µshort~~~~~~~~~~~~~~
P 028
page LF-PA-11
P 028
page LF-PA-11
+
+
020 Measurement type
023 normal or short
024 service interval
________________
Select operating type.
Default value normal
At the start of a measurement the sensing weight is lowered
down to the product and pulled back to the upper limit position.
Please note selection.
Select measurement type.
Default value single cycle
Insert number of measurement cycles.
Default value 45000
Range of values 1 ... 90000
The number of measurement cycles depends on the
process environment. The value should be adjusted to
the level of dirt and/or measuring tape condition.
The relay output service interval switches as soon as the
insert value is reached. The display alternately shows present
error and measuring value. In the measured value display the
alert symbol ß for error is blinking.
P 026
page LF-PA-13
present$error
rope$change
required$$$$$$$$W700
measured$value$$$000
$ß
$$$$$63.42 %
~~~~~~~~~~~_________
Service interval counter
Range of values 0 ... 90000
The counter shows the number of measurement cycles.
Reset counter to 0 after maintenance was executed.
Please note setup values.
Yo-Yo sensing level measurement
LF20

 periodical
Single cycle
 normal
 short

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02/14 © by MOLLET LF-PA-11 11 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
022 time unit
+
time$unit$$$$$$$$022
µh~~~~~~~~~~~~~~~~~~
$min.
time$interval$$$$021
$$$$$$$$$$1$h
for$periodical
measurement
Measurement parameters - parameter P 021 - P 022
run$up$length$$$$028
$$$$$$$$$$1$m
run$up$length$for
operating$type$short
P 023
page LF-PA-10
P 020
page LF-PA-10
P 023
page LF-PA-10
P 024
page LF-PA-10
Insert time interval for measurement type periodical [020].
Default value 1 h (depending on time unit [022])
Range of values 1 ... 60
The minimum time interval (T) for the distance between the measurements is
minute
dependent on the ambient temperature (T) and the measurement range (MR )
amb meter
and must not be undercut in all measurement types.
Please pay attention to this, otherwise malfunctions could occur!
Select time unit for time interval [021].
Default value h
Range of values h(hours)
min. (minutes)
The operating mode short can considerably shorten the length of a measurement cycle.
Measurement parameters - parameter P 028
Please note setup values.
022-MZ01.cdr
021 time interval
__________ [022]
Insert run up length for operating type short [023].
Default value 1 m
Range of values 1 ... (Full calibration [003] ./. 1)
028 run up length
________ m / ft / in
At the start of a measurement the sensing weight is lowered down to the product and pulled
back to the position that has been insert in the run up length [028], e.g. 1 m above product
using the default value.
For readjustment the upper limit position is approached every 20 measurement cycles.
In this operating type the sensing weight is not protected from spillage.
Select bolting for input 1 or 2 (see LF-PA-06) and wire the signal input accordingly.
(with an active input, sensing weight will be immediately moved into the upper limit position)
The use of the relay output function counter pulse [015/016] makes no sense, as the
sensing weight does not approach a defined point at the end of the measurement.
(and therefore no defined distance)
Yo-Yo sensing level measurement
LF20

 min.
h
MR
(m)
30
27
24
21
18
15
12
9
6
3
4 8 12 16 20 24 28 32 36 40 44
60 °C
50 °C
20 °C
30 °C
40 °C
Tamb
t (minute)
time interval
minimum 5 minutes

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12 LF-PA-12 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
Manual mode - parameter P 020
measured$value$$$000
$$$\
$$$$$$$0.72 m
~___________________
measurement type$020
µmanual~~~~~~~~~~~~~
$single$cycle
$periodical
measured$value$$$000
$$$[
$$$$$$$3.75 m
~~~~~_______________
measured$value$$$000
$$$]
$$$$$$$7.45 m
~~~~~~~~~~__________
Move down sensing weight
]$- symbol for moving down
Measured value indicates the tape length run out from flange
bottom line to sensing weight bottom line depending on selected
length unit [083] (m, ft, in) and selected decimal places [062].
\- symbol for manual mode is blinking and
measured value for the inserted block distance is shown.
Measurement type
Select manual.
Return to display measured value [000].
Manual measurements will be possible only, if the display shows measured value [000].
Move up sensing weight
[$- symbol for moving up
Measured value indicates the tape length run out from flange
bottom line to sensing weight bottom line depending on selected
length unit [083] (m, ft, in) and selected decimal places [062].
001 empty calibration
__________ m / ft / in
Empty calibration (001)
Flange bottom line
Minimum filling level
empty
Measured value in manual mode
Block distance
(002)
During manual mode operation the last valid measured value remains saved internally, it is
not overwritten in manual mode. The outputs still follow this.
(e.g. with a 50% fill level, 12 mA is still output for the current output)
Once work in manual mode has been completed, the measured value display [000] is
changed back to the form of depiction originally selected! (e.g. fill level in technical units TE)
If the height of the silo is not exactly known, the empty calibration [001]
could be determined with the help of the manual mode.
022-0603
The loose band switch and
the upper limit switch are out of order during manual mode operation!
Therefore it is possible in the manual mode to lower the sensing weight
into improper areas of the silo/bunker or into the discharge section!
Please make sure that you know the position in which the sensing weight
is currently located.
+
6x
Yo-Yo sensing level measurement
LF20

M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-13 13 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
sim.$value$$$$$$$027
$$$$$$10.00 mA
P 026
page LF-PA-10
Simulation - parameter P 026
$sim.$current
simulation$$$$$$$026
µsim. off~~~~~~~~~~~
$sim.$level
$sim.$volume
+
$$$Return$to
$$$group$selection
page LF-PA-04
Select simulation.
Default value sim. off (simulation off)
Insert simulation value
Range of values sim. level 0 ... 99 m
sim. volume 0 ... 100.000
sim. current 0 ... 22.00 mA
simulation$$$$$$$026
µsim.$Volume~~~~~~~~
sim.$value$$$$$$$027
$$$$$$800 m3
present$error
simulation
activated
$$$$$$$$$$$$$$$$W621
$$$$$$$$$$$$$$$$W621
measured$value$$$000
$ß
$$$$800.00 m3
~~~~~~~~~~~~~~~~____
empty$calibr.$$$$001
$$$$$20.00$m
full$calibration§§003
$$$$$15.00$m
level/volume$$$$$050
µvolume~~~~~~~~~~~~~
customer$unit$$$$056
µm3~~~~~~~~~~~~~~~~~
max.$scale$$$$$$$057
$$$$$$$$1000 m3
Example for simulation level
Settings at LF20
sim.$value$$$$$$$027
$$$$$$200 m3
present$error
simulation
activated
$$$$$$$$$$$$$$$$W621
$$$$$$$$$$$$$$$$W621
measured$value$$$000
$ß
$$$$200.00 m3
~~~~~~~~~~~~~~~~____
+
+
current$range$$$$033
µ4-20mA~~~~~~~~~~~~~
16,8 mA
9
10 7,1 mA
Current output
9
10
Current output
Yo-Yo sensing level measurement
LF20

M LLET
Füllstandtechnik
GmbH
14 LF-PA-14 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
[mA]
0/4
20
0 100
[%]
Fill level (volume)
Current
0/4
20
0 100
[%]
Residual volume
[mA]
Current
100
0
[%]
Fill level
rises
Full calibration (003)
Volume
Current output - parameter P 033
current$range$$$$033
µ4-20mA
$0-20mA
PG 03&
page LF-PA-04
$$$Return$to
$$$group$selection
page LF-PA-04
Select current range.
Default value 4 ... 20 mA
033 current range
The characteristics of the current output can be influenced using the parameter
level/volume [050] as follows.
The setting residual volume m/ft/in or residual volume TE cause a
declining output current when the fill level rises.
The setting level m/ft/in or level TE cause an increasing output
current when the fill level rises.
Please note selection.
Less residual
distance
Full calibration (003)
Fill level
rises
100
0
[%]
Residual
volume
Yo-Yo sensing level measurement
LF20
 4 ... 20 mA
 0 ... 20 mA

P 042
page LF-PA-16
M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-15 15 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
+
+
Insert output on alarm.
Default value 3,60 mA
Range of values 0 ... 22,00 mA
output$on$alarm
$$$$$$$3.60 mA
$$041
$user$specific.
Output on alarm Parameter - P 040
PG 04&
page LF-PA-04
output$on$alarm$$040
µMIN$(0/3.6mA)~~~~~~
$MAX$(22mA)
$hold
Select current output.
Default value MIN (0/3.6 mA)
040 output on alarm
041 output on alarm
___________ mA
These parameters determine the characteristics of the current output in the event of an
error.
Selection At the current output
MIN (0/3.6mA) the current falls to 0 mA or 3,6 mA
(depending on parameter current range [033])
MAX (22mA) the current increases to 22 mA.
hold the last current output is retained.
user-specific the current set in output on alarm [041] is output.
Please note setup value.
Please note selection.
Yo-Yo sensing level measurement
LF20
 MIN (0/3.6 mA)
 MAX (22 mA)
 hold
 user-specific

+
M LLET
Füllstandtechnik
GmbH
16 LF-PA-16 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
safety$distance$$042
$$$$$$$0.00 m
minimum distance
to$empty calibration
in$safety$dist.$$045
µalarm~~~~~~~~~~~~~~
$warning
+
Insert safety distance.
Default value 0 m
Range of values 0 m ... MS
This parameter prevents the sensing weight from running out
into improper areas of the silo/bunker or into the discharge
section.
042 safety distance
___________ [083]
Safety distance parameter - P 042
Safety distance [042]
Full calibration [003]
Empty calibration [001]
page LF-PA-04
Select signal type.
Default value alarm
This parameter determine the device reaction, in case the
sensing weight reaches the safety distance [042].
Behaviour in case of reaching the safety distance
1. alarm is selected in in safety distance [045].
- Sensing weight stops.
- Actual measurement is disapproved - last valid measured value is displayed.
- Current output represents the value selected in parameter output on alarm [041].
- Alarm [A660] and ß are shown in the display.
- Output relay with programmed function „alarm“ switches.
2. warning is selected in in safety distance [045].
- Sensing weight stops.
- Actual measurement is completed with a new measured value.
Full calibration [003] ./. Safety distance [042] = Measured value (fill level)
- Current output represents the measured value.
- Warning [W661] is shown and ß is blinking.
045 in safety distance
>0
Security distance [043]
adjustable to below
MS
P 040 and P 041
page LF-PA-15
Yo-Yo sensing level measurement
LF20

 warning
alarm

M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-17 17 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
Security distance arameter - p P 043
$$$Return$to
$$$group$selection
page LF-PA-04
security$dist.$$$043
$$$$$$$0.00 m
minimum distance
to$full$calibration
in$security$dist$044
µalarm~~~~~~~~~~~~~~
$warning
Insert security distance.
Default value 0,00 m
Range of values 0 m ... SA
This parameter configurates a safety zone underneath the
maximum full calibration [003].
This safety zone is used to warn the user that in case of fill
level continuous to rise future measurements could be
invalid, if the current measured value leaves the range of the
maximum full calibration.
043 security distance
___________ [083]
Security distance [043]
Full calibration [003]
Empty calibration [001]
>0
Select signal type.
Default value warning
This parameter determine the device reaction, in case the
sensing weight reaches the security distance [043].
Safety distance [042]
adjustable to above
SA
+
P 042 and P 045
page LF-PA-16 Please note setup value.
Please note selection.
044 in security dist.
Yo-Yo sensing level measurement
LF20

 alarm
warning

M LLET
Füllstandtechnik
GmbH
18 LF-PA-18 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
+
$m3
$ft3
$m
$ft
$in
Linearisation - parameter group PG 05
$ullage$DU
PG 05&
page LF-PA-04
$$$Return$to
$$$group$selection
page LF-PA-04
level/volume$$$$$050
µlevel$CU~~~~~~~~~~~
$level$DU
$ullage$CU
customer$unit$$$$056
µ%~~~~~~~~~~~~~~~~~~
$kg
$t
max.$scale$$$$$$$057
$$$$$100,00$%
Select display value in the measured value display
parameter [000].
Default value level CU
Select customer unit (dimension unit) for CU.
Default value %
056 customer unit
Inset the maximum scale value of measurement.
In the dimension unit selected and the number of decimal
places selected.
Default value 100
Range of values 1 ... 100000
050 level/volume
057 max. scale
___________ [056]
Full calibration (003)
Volume
Full calibration (003)
Residual
volume
1) Dimension unit according selected parameter customer unit [056] see below
2) Dimension unit according selected parameter distance unit [083] see page LF-PA-22
Ullage CU 1)
Ullage DU
= residual distance
2)
Level CU 1)
Level DU 2)
+
Please note setup value.
Please note selection.
active only with selection CU,
no function with selection DU
Yo-Yo sensing level measurement
LF20
 %
 kg  m
 t  ft
 m³  in
 ft³

 level DU
 ullage CU
 ullage DU
level CU

M LLET
Füllstandtechnik
GmbH
02/14 © by MOLLET LF-PA-19 19 MOLLET D-74706 Osterburken Tel. [phone] Fax [phone] Parameterisation
Display parameter group - PG 06&
PG 06&
page LF-PA-04
$$$Return$to
$$$group$selection
page LF-PA-04
+
language$$$$$$$$$060
µEnglish~~~~~~~~~~~~
$Deutsch
$Francais
~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~
061 back to home
__________ s
Insert time until return to measured value display [000].
Default value 100 s (seconds)
Range of values 3 ... 9999 (seconds)
Select number of decimals.
For display measured value [000] and input parameters.
Default value x.xx (two decimals)
Select „on“ for display check.
All points on the display are activated for around two
seconds.
Default value off
Switches automatically to „off“ after this 2 seconds.
060 language
062 no. of decimals
Select language
Default value English
back$to$home$$$$$061
$$$$$$$$100$s
time$until$jump$back
home$automatically
format$disply$$$$063
µoff~~~~~~~~~~~~~~~~
$on
$x.x
no.$of$decimals$$062
µx.xx~~~~~~~~~~~~~~~
$x.xxx
$x
+
+
Yo-Yo sensing level measurement
LF20
 Englisch
 Deutsch
 Français
 Japanisch
 X
 X,X
 X,XX
 X,XXX

M LLET
Füllstandtechnik
GmbH
20 LF-PA-20 02/14 © by MOLLET Parameterisation MOLLET D-74706 Osterburken Tel. [phone] Fax [phone]
+
+
+
Diagnostics - parameter group PG 07&
PG 07&
page LF-PA-04
$$$Return$to
$$$group$selection
page LF-PA-04
$erase all
present$error$$$$070
simulation
activated
$$$$$$$$$$$$$$$$W621
previous error$$$071
minimum run$down
length$underflow
$$$$$$$$$$$$$$$$A440
clear errors$$$$$072
µkeep
$erase$previous
$erase present
reset$$$$$$$$$$$$073
$$$$$$$$$$0
for$reset code
see manual
unlock$parameter$074
$$$$$$$$100
for$lock code
see manual
+
Present error is shown.
Letter W = warning
A = alarm
Error code 621 (example)
Previous error is shown.
Letter W = warning
A = alarm
Error code 440 (example)
Deletion of errors.
Default value keep
Reset all parameters to default values.
Default value 0
Range of values < > 333 (does not undertake reset)
333 undertakes reset
At least a basic setup is required after the reset .
074 unlock parameter
___________________
Lock of parameter entries.
Default value 100 (unlocks parameter entry)
Range of values < > 100 (locks parameter entry)
Warning [W] is shown.
Alarm [A] is shown and additional a
relay output switches, if the function
alarm is selected and current output
alters.
You will find the depiction of all error
codes on page LF-PA-21.
An error occurring in the device is shown
- by the ß error symbol in the display measured value [000]
warning ß blinking the device continues to measure
alarm ß permanent
- with relay output. The relay switch, if for the
parameter(s) relay 1 [014] and/or relay 2 [01A]
and/or optional relay 3 [01B] and/or relay 4 [01C]
the function alarm has(have) been selected.
- via the current output. The current output takes the value that has been determined
in output on alarm [040].
- in the parameter group diagnostics [07] with the code [W] warning and [A] alarm
in parameter present error [070]
respectively in previous error [071]
Only the error with the highset level priority is shown.
Note unlock parameter.