Elesa DD51-E User manual

Electronic position indicators
OPERATING INSTRUCTION
DD51-E
DD51-E-RF

2
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DD51-E - DD51-E-RF
Models all rights reserved in accordance with the law.
Always mention the source when reproducing our drawings.
Contents
1. Safety Instructions 4
1.1 Release Informations 5
2. System description 6
2.1 Wireless devices network 7
3. Assembly 7
4. Symbols on the display 8
5. Key function 8
6. Turning on the system 10
6.1 Turning off the system 10
7. Operating mode 10
7.1 Absolute / incremental measuring
mode selection 10
7.2 Unit of measure selection 11
7.3 Setting the absolute reference 12
7.4 Direct programming of the absolute
reference value (source) - of the
compensation value (offset) - of the
reading after one revolution (step) 13
7.5 Targets 13
7.5.1 Reaching the target position 14
7.5.2 Target display mode
15
7.5.3 Target tolerance
15

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7.6 RF version (DD51-E-RF) 15
7.6.1 Programming the network
parameter (nEtid) and the
channel parameter (nEtch) 15
7.6.2 Targets 16
8. Programming mode 16
8.1 Programming parameters
with numeric values
16
8.2 Device parameters
(in alphabetic order)
17
8.3 Main menu tree 18
8.4 Target menù tree 20
8.5 Parameter value 20
8.6 Addittional features
21
8.6.1 Reset 21
8.6.2 Test LCD
21
8.6.3 Release version 21
8.6.4 Password 21
9. Battery replacement 21
10. Problem solving 22

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DD51-E - DD51-E-RF
Models all rights reserved in accordance with the law.
Always mention the source when reproducing our drawings.
1 Safety Instructions
The product has been designed and manufactured in
accordance with the current regulations. The product lea-
ves the factory ready for use and complies with the safety
standards.
To maintain the product in this state, it is necessary that it
is assembled and used properly, in the closest complian-
ce with this instruction manual and with the following spe-
cific safety precautions.
Ensure that the user has read and understood the in-
struction manual and in particular the chapter “Safety
Instructions”.
In addition to the instruction manual, all the rules of law
must be observed, in regard to accident prevention and
environmental protection.
This manual is intended as an indispensable supplement
to the existing documentation (catalogues, data sheets
and assembly instructions).
The use without complying with the
descriptions / specific parameters, in
combination with systems / machines /
processes to be controlled, it can lead to
a malfunction of the product, causing:
- health hazards,
- environmental hazards,
- damage to the product and its proper functionality.
The device must not be used:
- in explosion hazard areas;
- in medical/life support areas and equipment.
Do not open the equipment and do not apply any
modifications! Modifying the equipment might have a
negative impact on reliability of the device and might
result in danger! Do not attempt any repairs, but return
any defective equipment to the manufacturer! Any
violation of the integrity of the device as delivered will null
the warranty.

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Always mention the source when reproducing our drawings.
Setup / Commissioning
In case of any abnormal behaviour (including change in
operating conditions), the device must be switched off
immediately. It is imperative to switch off power supply
during any installation work at the equipment. Installation
and commissioning by correspondingly trained and
authorised staff only. After correct mounting and
commissioning the device is ready for operation.
Maintenance / Repair
Switch off the power supply of the equipment before any
action.
Maintenance should be performed by trained and
authorised persons only.
Do not open nor modify the case of the indicator.
Tampering with this product may endanger the
correctness and accuracy of its operation.
In case of malfunction, do not attempt any repairs to the
units and contact Elesa sales office.
1.1 Release Informations
Even if almost all the functionalities are the same as in the
previous releases, the maual refer to devices with release
higher than 5.01.00 (see cap. 8.6.3).
NOTE: This equipment has been tested and found
to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference when the equipment is operated in
a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the
instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference
in which case the user will be required to correct the
interference at his own expense.

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DD51-E - DD51-E-RF
Models all rights reserved in accordance with the law.
Always mention the source when reproducing our drawings.
2 System description
DD51-E position indicators, with battery power supply,
can be used on passing through shafts in any position
to provide the reading of the absolute or incremental
positioning of a machine component.
Mechanical and electrical characteristics
Power supply Lithium battery CR2450 3.0 V
Battery life Up to 5 years
(3 years for RF version)
Display 5-digit LCD of 8 mm height
and special characters
Reading scale -19999; 99999
Number of decimal digits programmable (1)
Unit of measure mm, inches, degrees
programmable (1)
Rotation max. speed 300/600/1000 r.p.m. (2)
programmable (1)
Precision 10.000 impulses/revolution
Protection level IP65 or IP67
Working temperature 0 °C ÷ +50 °C
Storage temperature -20 °C ÷ +60 °C
Relative humidity max. 95% a 25 °C
without condensation
Environment indoor use
Altitude up to 2000 m
(1) See cap. 8.1
(2) Default: 600 r.p.m.
WARNINGS!
Higher rotation speeds to 600 r.p.m. can be maintained for
short periods of time.
The value of the max speed affects the battery life.

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2.1 Wireless devices network
DD51-E-RF is compatible with the Elesa’s wireless network
that allow electronic meters and indicators to communicate
via radio with a PLC.
The Elesa’s wireless network is made by the following
components:
- One control unit UC-RF
- Max 36 electronic position indicators or meter as DD51-E-RF,
DD52R-E-RF or MPI-R10-RF
The control unit UC-RF is provided with a standard interface
for the most common industrial busses to be connected
to the PLC and allows the transmission of the information
between the PLC and the DD51-E-RF position indicators.
The UC-RF exchanges information with the DD51-E-RF
via radio frequency and allows the setting of the target
position and the control of the current position of each
indicators, directly from the PLC.
WARNINGS! Check the UC-RF instruction for more
detail regarding the configuration.
3 Assembly
1. Drill a Ø 6x10 mm hole in the body of the machine with
a 22 mm centre distance from the shaft to fit the rear
referring pin.
2. Fit the indicator onto the shaft and make sure that the
referring pin fits into the hole.
3. Clamp the bushing to the
shaft by tightening the
grub screw with hexagon
socket and cup end,
according to UNI 5929-85.
Target positions
Current positions
PLC

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4 Symbols on the display
1. Relative mode indicator
2. Low battey level indicator
3. RF connection indicator
4. Unit of measure (mm / inch)
5. Unit of measure (degrees)
6. Target position indications
5 Key function
WARNINGS!
The keys’ icons are conventionally shown with the default
display rotation set to 180.
Key Operating
mode
Programming
mode
Keep pressed for 3 sec to
enter the programming mode.
When the target is active,
pressing the key will show
the actual position or
the target position on the
display accordance to
the setting of the menu
____0 see cap. 7.5.2
Parameter selection /
Confirm of parameter
change
123
5
4
66

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Select the:
Absolute measuring mode
Incremental measuring mode
It is possible to choose one
of the following options (see
the __0__ voice of the
menu – cap. 8.3):
ArCLr [DEFAULT]:
switching from ABS to REL
the counter is set to zero.
Ar : switching from ABS
to REL the counter is not
set to zero.
OFF : the key is not assigned
to any function in the
operating mode.
Digit increase /
programming
mode exit
Press the key to select the
unit of measure needed.The
options available are: mm,
inch and degrees.
It is possible to choose one
of the following options (see
the 0____ voice of the
menu – cap. 8.3):
ALL [DEFAULT]: selectable
units of measure: mm, inch, D
nodEG : selectable units of
measure: mm, inch
OFF : the key does not allow
the unit of measure conversion
Scroll for parameters /
digit selection
+
Programmable with one of
the following options (see
the
0___0 voice of the
menu – cap. 8.3):
P_OrG [DEFAULT]: show
and set the OriGin parameter
P_StP : show and set the
StEP parameter
P_OFS : show and set the
OFFS parameters
OFF : the key combination is
not assigned to any function
in the operating mode.
N/A

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+
Programmable with one of
the following options (see
the __0_0 voice of the
menu – cap. 8.3):
L_OrG [DEFAULT]: the
key combination sets the
absolute value to the sum of
the parameters Origin and
Offset.
OFF : the key combination is
not assigned to any function
in the operating mode.
N/A
>
To turn on the indicator, hold
then press the key
After the start-up sequence
the indicator will be ready to
be used (see cap. 6)
N/A
6 Turning on the system
After you have read and understood the section “Safety
Instructions”, proceed by switching on the indicator.
To turn the indicator on hold then pressing the key .
The display will light up and the indicator will be ready
to be used.
6.1 Turning off the system (only for storage)
To turn the system off enter the programming mode, select
the
rESEt parameter then press the key . At this
point, press the button for 5 seconds; the display
will turn off and the indicator will go into into sleep mode.
7 Operating mode
7.1 Absolute / incremental measuring mode selection
Press the key to select the absolute or incremental
measuring mode.
If the incremental measuring mode is selected, the symbol
REL is show on the display.

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If the absolute measuring mode is selected no symbol is
show on the display.
It is possible to change the key function
chosing one of the available otions in the
menu voice
__0__
The available options are:
-
ArCLr (default): passing from ABS to REL the
counter is set to zero.
-
Ar : passing from ABS to REL the counter is not set to
zero. In this case, the counter is set to zero by pressing
+ .
-
OFF : the key is disabled and does not allow
changing the selected measuring mode.
To program the parameters listed above, see cap. 8.
7.2 Unit of measure selection
Press the key to select the unit of measure needed.
The options available are millimeters, inches and degrees.
The measuring mode selected is shown on the display by
the symbols:
-
mm : millimeters - INCH : inches - D : degrees
It is possible to change the key function
chosing one of the available otions in the
menu voice
0____
The available options are:
-
ALL (default): units of measure that can be selected:
mm, inch, degree
-
nodEG : units of measure that can be selected: mm,
inch
- OFF : the key is disabled and does not allow changing
the selected measuring mode.
To program the parameters listed above, see cap. 8.
0____
__0__

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DD51-E - DD51-E-RF
Models all rights reserved in accordance with the law.
Always mention the source when reproducing our drawings.
7.3 Setting the absolute reference
After having selected the absolute measuring mode and
stopped the shaft in the starting position or in the reference
position, press the key combination +to set the
absolute value to the sum of the values of the parameters
OrG (absolute value of reference) and the selected OFFS
(compensation value).
The value of compensation (offset) allows you to adjust the
value shown on the display in such a way that takes into
account, for example the wear or tool change. The system
allows you to store up to 10 values of compensation.
Pressing the key combination +, the screen will
display the last compensation value used (eg OFS 0 ).
It’s possible to choose the desired compensation value
by pressing the key , and then press the key
to confirm.
The screen will display the absolute value equal to the
sum of the values of the parameters
ORG and OFFS .
To program the offset values, see parameter
OFFS of
cap. 8.
It is possible to change the key function
chosing one of the available otions in the
menu voice
__0_0
The available options are:
-
L_OrG : the key combination +allow to
choose an offset compensation and set the origin value;
-
OFF : the keys combination +is not
associated to any function in the operating mode.
To program the parameters listed above, see cap. 8.
__0_0

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7.4 Direct programming of the absolute reference value
(origin) – of the compensation value (offset) – of the
reading after one revolution (step)
The function of the keys combination +allows
direct access to the programming of one of the following
parameters: Origin, Step or Offset.
It is possible to change the key function
chosing one of the available otions in the
menu voice 0___0
The available options are:
-
P_OrG : direct programming of the absolute reference
value (OrG parameter)
- P_StP : direct programming of the reading after one
revolution (StEP parameter)
- P_OFS : direct programming of the compensation
value (OFFS parameter)
-
OFF : the keys combination +is not linked
to any function in the operating mode
For programming the parameters listed above see
parameter 0___0 of cap. 8.3.
7.5 Targets
DD51-E allow to set up to 32 target positions to store
relevant machine configuration setting.
To program the targets:
- selet
tArGE in the main menu (see cap. 8.3)
- select PrOGt (see cap. 8.4)
- select the wanted memory location (
PtG01 to PtG32 )
using the keys
- press the key to select.
- follow the instruction in cap. 8.1 to set the wanted value.
0___0

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To load a target:
- select
tArGE in the main menu (see cap. 8.3)
- select
LOAdt (see cap. 8.4)
- select the wanted target value (
LtG01 to LtG32) using
the keys
- press the key to select.
- The value of the selected target is shown.
- Press again to confirm or press to go back to
the target selection list.
WARNINGS!
When a target is loaded the unit of mesure cannot be change.
7.5.1 Reaching the target position
When a target is selected the device will suggest the
direction of rotation of the shaft to reach the target by
means of the symbols and
It is possible to set the tolerance of the target as absolute
difference from the set value by means of the PtOLL
parameter (see cap. 8)
The target position indicators will work, depending from
the dir and
PtOLL parameters, as in the following table:
T = set target
M = measured value
Toll = tolerance (see Ptoll)
dir –o dir o--
M < T - Toll (blinking) (blinking)
T - Toll ≤ M < T
M = T
T < M ≤ T + Toll
M > T + Toll (blinking) (blinking)
If a target is selected, is possible to cancel it entering in
programming mode and selecting the StoPt option.

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7.5.2 Target display mode
The menu voice ____0 (see cap. 8.3) allows the user
to choose one of the target following modes listed below:
-
dtArG (default): when a target is loaded, the display
shows the actual absolute position and the indication
to reach the target as explained before in cap. 7.5.1.
Pressing the key the set target position is shown.
-
dtoGo : when a target is loaded, the display shows the
distance to the set target and the indication to reach the
target as explained before in cap. 7.5.1. If the target is
not reached, the display blinks. Pressing the key the
display shows the actual absolute position.
-
OFF : the key is not associated to any function in the
operating mode.
7.5.3 Target tolerance
Set the value of Ptoll parameter to define the tollerance
allowed for target (see cap. 8 for details).
7.6 RF version (DD51-E-RF)
7.6.1 Programming the network parameter (nEtid) and
the channel parameter (nEtch)
The system radio network is defined by the following two
parameters:
nEt id : id 00/99 (NetID = 03 is reserved and is not possible
to be used)
nEt ch : ch 01/36
These parameters can be configured in the Radio menu
of the indicator (see cap. 8) and must be set according
to the PLC recipe to guarantee a perfect communication
between UC-RF and DD51-E-RF.
Warning
For DD51R-E-RF with firmware release equal to 5.1 or
higher, channel 1 is equivalent to channel 4 of the previous
version. Consider it when used in old system with UC-RF
with fw release lower than 5.1

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7.6.2 Targets
Using DD51-E-RF, target positions can be sent from the
PLC to the indicators through the control unit. When a
target is set, the behaviour is the sameas decribed in
cap. 7.5.
8 Programming mode
Press the key for 3 seconds to enter the programming
mode. Depending on the setting of PASS parameter
(see cap. 8.6.4), the system may require you to enter a
password.
Press the key to scroll through the list of parameters
and selct the wanted one pressing .
Press the key to exit the programming mode. The
programming mode is automatically dropped after 30
seconds of inactivity.
8.1 Programming parameters with numeric values
Press the key to increase the flashing digit.
Press the key to select the next digit.
Press the key to confirm the value and go back to
the list of parameters.
The numeric values of the parameters
must be inserted taking into account
the selected unit of measure.
When a parameter is changed from its stored value,
confirming it, the display will show the message
CHAnG .
When exiting from the programming mode, the parameter
are stored in the internal memory. If a parameter was
changed, the display will show the message
StorE

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8.2 Device parameters (in alphabetic order)
Parameter Description Available options Standard
value
dir
Measurement
direction
Set direction
of the positive
axis
--o counterclockwise
rotation to increment
the measure
o-- clockwise rotation
to increment the measure
--o
diSP
Display
orientation
0°
180°
180°
OFFS
Offset Value See cap. 8.5
The system allows
you to store up to 10
compensation values:
OFS 0 ... OFS 9
0
OrG
Reference
value
displayed
at the start
point
See cap. 8.5
0.0
Ptoll
Tolerance
of target
position
mm : 0.01 ÷ 9.99
inches : 0.001 ÷ 0.393
degrees : 0.01 ÷ 9.99
The parameter value
depends on the unit of
measure selected.
mm:
0.10
inches:
0.004
Degree:
0.10
Radio
Wireless
transmission
parameters
nEt id: id00 ÷ id99
nEt ch: ch01 ÷ ch36
id00
ch01
rES
The parameter
allows
defining the
resolution of
the measure
mm: 1 ; 0.1 ; 0.01
inches: 1 ; 0.1 ; 0.01 ;
0.001
degrees: 1 ; 0.1 ; 0.01
mm:
0.1
inches:
0.01
degrees:
1
SPEEd
Set the
maximum
speed in rpm
that can be
correctly read
300 ; 600 ; 1000 600

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Parameter Description Available options Standard
value
StEP
Reading
after one
revolution
0.01 ; 100.00 001.00
_ _ _ _ 0
“ t_Sho ”
Display
visualization
during target
mode
d_toG0 : during the
positioning the display
show the distance from
the target. Press the
key to show the
actual position of the
indicator.
d_tArG : during the
positioning the display
show the present
position, press the key
to show the target
position to reach.
d_toG0
tArGe
Target options See cap. 8.5
0.0
8.3 Main menu tree
StEP 0.01 ÷ 100.00
OrG
See Cap. 8.5
dir --o
o--
OFFS
OFS 0
...
OFS 9
rES
See Cap. 8.5
See Cap. 8.5
mm
1
0.1
0.01
Inch
1
0.1
0.01
0.001
deg
1
0.1
0.01
Scrolling direction

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0____ OFF
ALL
nodEG
__0_0 L_OrG
OFF
0___0
OFF
P_StP
P_OrG
P_OFS
__0__ ArCLr
OFF
Ar
Scrolling direction
____0 OFF
dtArG
dtoGo
PASS
See Cap. 8.6.4
rESEt
See Cap. 8.6.1
LcdtS
See Cap. 8.6.2
Fj.i.bb
Release Version (see cap. 8.6.3)
* See key definition 7
*
*
*
*
*
diSP 0°
180°
rAdio
nEt id
nEt ch
00
...
99
ch 01
...
ch 36
PtoLL
0.01 ÷ 9.99
0.001 ÷ 0.393
mm
Inch
tArGE
See Cap. 8.4
SPEEd
300
600
1000

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StoP_t
*
LOAd_t
LtG 01
...
LtG 32
PrOG_t
PtG 01
...
See Cap. 8.5
PtG 32
See Cap. 8.5
Scrolling direction
* Displayed only if a target position is setted
mm
-9999 ÷ 9999
Inch deg
-999.9 ÷ 999.9
-99.99 ÷ 99.99
-393.7 ÷ 393.7
-99.99 ÷ 99.99
-0393 ÷ 0393
-999.9 ÷ 999.9
-99.99 ÷ 99.99
-9999 ÷ 9999
-9.999 ÷ 9.999
rES
0 .1
0.01
1
0.001
8.4 Target menù tree
8.5 Parameter value
The parameter value depends on the unit of measure and
resolution set.
The value may change according to the resolutions of mm
and inch.
Es.
If
rES mm = 1 and res inch = 0.01
The max parameter in mm is -2539 ÷ 2539 because
if we convert the value in inch 2539 / 25.4 = 99.96
which is the max value visible on the display with the res
inch = 0.01
In case the parameter was 2540 it would not be possible
to show the converted value because 2540 / 25.4 =
100.00