Omron E3C-LDA - 3 User manual

E3C-LDA Series
A-455E3C-LDA Series
Photoelectric Sensors with Separate Digital Amplifiers (Laser-type Amplifier Units)
E3C-LDA Series
• All seven laser types provide ample
long distance, for the Diffuse Reflective
Model 1.000 mm and for Retroreflec-
tive Models up to 7.000 mm.
• Coaxial Retroreflective Models provide
detection performance equivalent to
through-beam sensors, simplifying
Sensor installation.
• Industry-first variable focal point and
optical axis alignment mechanisms.
Optimize for workpieces and improve
inspection quality.
• Drive the laser with an Amplifier the
same size as a Digital Fiber Amplifier.
Ordering Information
Sensor Heads
Note:Select a reflector (sold separately) according to the application.
Amplifier Units
Amplifier Units with Cables
Amplifier Units with Connectors
Sensing method Focus Model number Remarks
Diffuse reflective
Spot E3C-LD11 Mounting a Beam Unit (sold separately) allows the use of line and
area beams.
Line E3C-LD21 This model number is for the set consisting of the E39-P11 mount-
ed to the E3C-LD11.
Area E3C-LD31 This model number is for the set consisting of the E39-P21 mount-
ed to the E3C-LD11.
Coaxial retroreflec-
tive
Spot (variable) E3C-LR11 (See
note.)
Mounting a Beam Unit (sold separately) allows the use of line and
area beams.
Spot (2.0-mm fixed
dia.)
E3C-LR12 (See
note.) ---
Item Appearance Functions Model
NPN output PNP output
Advanced
models
Twin-output
models
Area output, self-diagno-
sis, differential operation E3C-LDA11 E3C-LDA41
External-input
models
Remote setting, counter,
differential operation E3C-LDA21 E3C-LDA51
Item Appearance Functions Model
NPN output PNP output
Advanced
models
Twin-output
models
Area output, self-diagno-
sis, differential operation E3C-LDA6 E3C-LDA8
External-input
models
Remote setting, counter,
differential operation E3C-LDA7 E3C-LDA9

A-456 Advanced Photoelectric Sensors
Amplifier Unit Connectors
(Order Separately)
Note:Use the E3X-MC11-S Mobile Console for the E3C-LDA series
Amplifier Units. Other Mobile Consoles cannot be used.
Mobile Console (Order Separately)
Accessories (Order Separately)
Beam Units
Reflectors
Specifications
Ratings/Characteristics
Sensor Heads
Note 1. Values are sensed for white paper.
2. These values apply when a E39-R12 Reflector is used. The MSR function is built-in. The reflected light from the object being measured
may affect the sensing accuracy, so adjust the threshold value before use.
3. The beam radius is the value for the middle measurement distance and indicates a typical value for the middle sensing distance. The radius
is defined by light intensity of 1/e2(13.5%) of the central light intensity.
Light will extend beyond the main beam and may be affected by conditions surrounding the object being measured.
4. The E3C-LR12 has a fixed beam size (the focus point cannot be changed).
Item Appearance Cable
length
No. of
conduc-
tors
Model
Master
Connector
2 m
4E3X-
CN21
Slave
Connector 2E3X- CN22
Appearance Model Remarks
E3X-MC11-SV2-EU
E3X-MC11-SV2-UK
(model number of set)
Mobile Console with
Head, Cable, and
AC adapter provid-
ed as accessories
E3X-MC11-C1-SV2 Mobile Console
E3X-MC11-H1 Head
E39-Z12-1 Cable (1.5 m)
Applicable
Sensor Head Appearance Focus Model
E3C-LD11
Line E39-P11
Area E39-P21
E3C-LR11
Line E39-P31
Area E39-P41
Type Appearance Model
Standard
Effective area:
23 ×23 mm
E39-R12
Standard
Effective area:
7 ×7 mm
E39-R13
Transparent
detection
Effective area:
23 ×23 mm
E39-R14
Sheet (cuttable)
Effective area:
195 ×22 mm
E39-RS4
Sheet (cuttable)
Effective area:
108 ×46 mm
E39-RS5
Item Diffuse reflective Coaxial retroreflective
E3C-LD11 E3C-LD21 E3C-LD31 E3C-LR11 E3C-LR11 + E39-P31 E3C-LR11 + E39-P41 E3C-LR12
Light source
(emission wavelength) Red semiconductor laser diode (650 nm), 2.5 mW max. (JIS standard: Class 2, FDA standard: Class II)
1 mW max. (JIS
standard Class
1)
Sensing distance
High-resolution mode: 30 to 1,000 mm
Standard mode: 30 to 700 mm
Super-high-speed mode: 30 to 250 mm
(See note 1.)
7 m
5 m
2 m
(See note 2.)
1,700 mm,
1,300 mm
700 mm
(See note 2.)
900 mm
700 mm
400 mm
(See note 2.)
7 m
5 m
2 m
(See note 2.)
Beam size (See note 3.)
0.8 mm max. (at
distances up to
300 mm)
33 mm (at
150 mm)
33 ×15 mm (at
150 mm)
0.8 mm max. (at
distances up to
1,000 mm)
28 mm (at 150 mm) 28 ×16 mm (at
150 mm)
2.0 mm dia. (at
distances up to
1,000 mm)
Functions Variable focal point mechanism (beam size adjustment) (See note 4.), optical axis adjustment mechanism (axis adjustment)
Indicators LDON indicator: Green; Operation indicator: Orange
Ambient illumination
(receiver side) 3,000 lx (incandescent lamp)
Ambient temperature Operating: −10°C to 55°C; Storage: −25°C to 70°C (with no icing or condensation)
Ambient humidity Operating/storage: 35% to 85% (with no condensation)
Vibration resistance
(destruction) 10 to 150 Hz with double amplitude of 0.7 mm, in X, Y, and Z directions for 80 min each
Degree of protection IEC 60529: IP40
Materials Case and cover:ABS
Front surface filter:Acrylic resin
Case and cover:ABS
Front surface filter:Glass
Weight (packed) Approx. 85 g Approx. 100 g

A-457E3C-LDA Series
E3C-LDA Series
Amplifier Units
*1: Communications are disabled if super-high-speed mode is selected, and the mutual interference prevention function and the communications
function for the Mobile Console will not function.
*2: The preset counter is available only with advanced, external-input models.
Nomenclature
Type Advanced, twin-output models Advanced, external-input models
Model NPN output E3C-LDA11 E3C-LDA6 E3C-LDA21 E3C-LDA7
Item PNP output E3C-LDA41 E3C-LDA8 E3C-LDA51 E3C-LDA9
Supply voltage 12 to 24 VDC ±10%, ripple (p-p) 10% max.
Power consumption 1,080 mW max. (current consumption: 45 mA max. at power supply voltage of 24 VDC)
Control output Load power supply voltage: 26.4 VDC max.; NPN/PNP (depends on model) open collector
Load current: 50 mA max.; residual voltage: 1 V max.
Response
time
Super-high-speed mode 100 µs for operation and reset 80 µs for operation and reset
Standard mode 1 ms for operation and reset
High-resolution mode 4 ms for operation and reset
Functions
Power tuning, differential detection, timer, zero-reset, initial reset, mutual interference prevention (See note 1.), preset
counter (See note 2.), reversed display
I/O settings Output setting (Select from channel 2 output, area output, or
self-diagnosis.)
External input setting (Select from teaching, power tuning,
zero reset, light OFF, or counter reset.)
Display Operation indicator for channel 1 (orange), operation indica-
tor for channel 2 (orange) Operation indicator (orange), Power Tuning indicator (orange)
Digital display
Select from the following: Incident level + threshold, incident
level percentage + threshold, incident light peak level + no in-
cident light bottom level, minimum incident light peak level +
maximum no incident light bottom level, long bar display, in-
cident level + peak hold, incident level + channel
Select from same displays as given at the left or a counter dis-
play.
Ambient illumination
(receiver side)
Incandescent lamp:10,000 lux max.
Sunlight:20,000 lux max.
Ambient temperature
Operating:Groups of 1 to 2 Amplifiers: −25°C to 55°C
Groups of 3 to 11 Amplifiers: −25°C to 50°C
Groups of 12 to 16 Amplifiers: −25°C to 45°C
(with no icing or condensation)
Storage: −30°C to 70°C (with no icing or condensation)
Ambient humidity Operating and storage: 35% to 85% (with no condensation)
Connection method Prewired
cable Separate connector Prewired cable Separate connector
Weight (packed state) Approx. 100 g Approx. 55 g Approx. 100 g Approx. 55 g
Materials Case Polybutylene terephthalate (PBT)
Cover Polycarbonate
UP
SET RUN 12
DOWN MODE
LD
1 Operation indicator
2 Main display (red)
3 Twin-output Models: Operation indicator for channel 2
External-input Models: Power tuning indicator
4 Sub-display (green)
7 Operation keys
5 SET/RUN switch 6 Twin-output Models: Channel selector
External-input Models: Operation mode selector
Lit when the output is ON.
Twin-output Models: Lit when the output for channel 1 is ON.
2Displays the incident light level or the function name.
3Twin-output Models: Lit when the output for channel 2 is ON.
External-input Models: Lit when power tuning is set.
4Displays supplemental detection information, the setting of a function, etc.
5 Used to switch the mode.
6 Twin-output Models: Used to select the channel to display or set.
External-input Models: Used to select dark-ON or light-ON operation
7 Used to change the display, set functions, etc.
11

A-458 Advanced Photoelectric Sensors
Basic Operating Information
Setting the Mode
The mode is set using the SET/RUN switch. Set this switch according to the operation to be performed.
Key Operations
The operation keys are used to switch the displays and set detection conditions. The functions of the keys depend on the current
mode.
Time to Press Keys
If a specific time for pressing a key is not given in a procedure, press the key for approximately 1 second.
For example, if the procedure says “press the UP key,” then press the UP key for approximately 1 second
and then release it.
Reading Displays
The information displayed on the main display and sub-display depends on the current mode.
For the default settings, the RUN mode displays will appear when the power supply is turned ON for the first time
Note: The information that appears on the displays can be set using the display switch function. Refer to Detailed Settings.
Basic Settings
Setting the Operation Mode
Select either light-ON or dark-ON operation.
The setting method depends on the type of Amplifier Unit.
Adjusting the Power (as Required)
Mode Description
SET Select to set detection conditions, to teach the threshold value, etc.
RUN Select for actual detection operation or to set the following: Manual adjust-
ment of thresholds, power adjustment, zero reset, or key lock.
Key Function
RUN mode SET mode
UP key
Increases the threshold.
Depends on the setting.
−Executes teaching.
−Changes the setting forward.
DOWN
key Decreases the threshold.
Depends on the setting.
−Executes teaching.
−Changes the setting in reverse.
MODE key Depends on the MODE key setting.
−Executes power tuning (default set-
ting).
−Executes a zero reset.
Switches the function to be set on the
display.
Mode Main display (red) Sub-display (green)
Set
Displays the incident light level,* function name, or
other information depending on the key operation.
*The incident light level will be displayed even if
DIFF (differential operation) is set for the detection
method.
Displays threshold value* or the setting of the func-
tion displayed on the main display depending on the
key operation.
*The threshold value for the change in the incident
light level will be displayed if DIFF (differential oper-
ation) is set for the detection method.
RUN
(See
note.)
For the default setting, the current incident light level
will be displayed.
The change in the incident light level will be dis-
played when DIFF (differential operation) is set for
the detection mode.
For the default setting, the current threshold value
will be displayed.
The threshold value for the change in the incident
light level will be displayed if DIFF (differential oper-
ation) is set for the detection method.
Selection Description
LON (light-ON)
(default)
The output will turn ON when the incident light level is above the threshold.
If DIFF (differential operation) is set for the detection method, the output will turn ON when an edge is detected.
DON (dark-ON) The output will turn ON when the incident light level is below the threshold.
If DIFF (differential operation) is set for the detection method, the output will turn OFF when an edge is detected.
Type Setting method
Twin-output model Set as the operation mode in SET mode.
Refer to 5. Detailed Settings.
External-input
model
Set using the operation mode selector.
LD

A-459E3C-LDA Series
E3C-LDA Series
Power tuning can be used to adjust the incident light level that is
currently being received to the power tuning target value (default: 2,000).
Before tuning ON the power, always secure the detection object and Head and be sure that the incident light level is stable.
The power tuning target value can be changed. Refer to Detailed Settings.
The incident light level may change when the detection method is changed.
If necessary, retune the power after changing the detection method.
Setting Method
Confirm that the MODE key setting is PTUN (power tuning) in advance. PTUN is the default setting. Refer to Detailed Settings.
Setting Errors
An error has occurred if one of the following displays appears after the progress bar is displayed.
Clearing Method
Over Error
The incident light level is too low for the power tuning target value.
The power can be increased up to approximately 1.5 times the incident light level without power tuning.
Bottom Error
The incident light level is too high for the power tuning target value.
The power can be decreased down to approximately 1/8th the incident light level without power tuning.
Timeout Error
An error occurred because the incident light level was not stable during power tuning. Make sure that the work-
piece and Head are secured and retune the power.
RUNSET
Switch to RUN mode.
Tuning completed and previous display returns.
Main Display
Press the MODE key for at least 3 seconds.
Power tuning target value
PTUN
During power tuning
Progress bar
PTUN
A progress bar will appear on
the sub-display one digit at a
time.
(Release the MODE key when
the progress bar appears.) Display alternates
at a fixed interval.
PTUN OVER
Flashes twice
PTUN BOTM
Flashes twice
PTUN TOUT
Flashes twice
Switch to RUN mode
PTUN OFF
RUNSET
Hold down the MODE key and press the DOWN key for at least 3 seconds.
Note: Press the DOWN key right after pressing the MODE key.
The sub-display will flash twice and power tuning will be cleared.
+

A-460 Advanced Photoelectric Sensors
Setting Thresholds
Teaching for Through-beam or Retroflective Sensor Heads
Teaching for a Through-beam or Retroflective Sensor Head is performed without a workpiece.
A value about 6% less than the incident light level is set as the threshold value. This method is ideal to stably detect very small
differences in light level.
If DIFF (differential operation) is set for the detection method, the threshold value will be set to the minimum value below
the incident light level without a workpiece that will enable stable detection.
Setting Mode
Teaching for Reflective Sensor Heads
Teaching for a Reflective Sensor Head is performed without a workpiece (i.e., for the background).
A value about 6% greater than the incident light level is set as the threshold value.
This method is ideal to stably detect very small differences in light level.
If DIFF (differential operation) is set for the detection method, the threshold value will be set to half of the difference be-
tween the two measured values.
Reflector
Setting Errors
Switch to SET mode.
Switch to RUN mode.
Threshold value
THRU
TECH ----
THRU LO
Flashes twice
RUNSET
RUNSET
The sub-display will flash.
Teaching completed and previous display returns.
The threshold value that was set will flash twice.
Do one of the following and then repeat the operation
•Adjust the Head to increase the incident light level.
•Execute power tuning.
Press the UP or DOWN key.

A-461E3C-LDA Series
E3C-LDA Series
Setting Method
Teaching With and Without a Workpiece
Teaching can be performed twice, once with and once without a workpiece, and the value between the two measured values is
set as the threshold.
I
If DIFF (differential operation) is set for the detection method, the threshold value will be set to half of the difference be-
tween the two measured values.
Setting Method
TECH ----
Switch to SET mode.
RUNSET
The sub-display will flash.
Press the UP or DOWN key.
Press the UP or DOWN key for at least 3 seconds.
Threshold value
RFCT
• Setting Errors
RFCT OVER
Flashes twice
Teaching completed and previous display returns.
The threshold value that was set will flash twice.
Do one of the following and then repeat the operation
•Adjust the Head to decrease the incident light level.
•Execute power tuning.
Threshold value
2PNT
TECH ----
Switch to SET mode.
RUNSET
The sub-display will flash.
Teaching completed and previous display returns.
The incident light level with a workpiece will be measured and the previous display will return.
The threshold value that was set will flash twice.
Position a workpiece and press the
UP or DOWN key.
Remove the workpiece and press the UP or DOWN key.
Workpiece

A-462 Advanced Photoelectric Sensors
Setting Erros
An error has occurred if any of the following is display when the UP or DOWN key is pressed without a workpiece.
Manually Setting Threshold Values
A threshold value can be set manually.
Setting Method
When the UP or DOWN key is pressed to change the threshold value, the threshold value will be displayed on the sub-
display regardless of the display switch setting.
The information set for the display switch setting will return approximately 5 seconds after the threshold is changed.
Do one of the following and then repeat the operation
• Adjust the Head to decrease the incident light level.
• Execute power tuning.
Do one of the following and then repeat the operation
• Adjust the Head to increase the incident light level.
• Execute power tuning.
Do the following and then repeat the operation
• Adjust the Head to increase the difference between
the two incident light levels.
2PNT OVER
Flashes twice
2PNT LO
Flashes twice
2PNT NEAR
Flashes twice
The information set for the display switch will be displayed.
(The default setting is for the incident light level and the threshold value.)
Light level Threshold
Adjust the threshold value with the UP and DOWN keys.
Increases the threshold value.
Decreases the threshold value.
Switch to RUN mode.
RUNSET

A-463E3C-LDA Series
E3C-LDA Series
Detailed Settings
The following functions can be set in SET mode. The default settings are shown in the transition boxes between functions.For Twin-
output Models, all settings except for the operation mode and timer settings are the same for both channels.
Note:The values shown for thresholds, incident light levels, percentages, etc., are examples only. Actual displays may vary.
RUNSET
Teaching (Light level/Threshold display)
0. Operation Mode
Light-ON
LON
DON Dark-ON
Single edge
Either the rising or falling
edge is detected.
Double edge
Both the rising and falling
edge are detected.
250 µs 500 µs
500 µs 1 ms
1 ms 2 ms
10 ms 20 ms
100 ms 200 ms
Single edge
This setting depends on the setting for
the differential edge selection.
Switch to SET mode.
Double edge
Standard mode
Response time: 1 ms
STND
HRES
High-resolution mode
Response time: 4 ms
DIFF
Not
SHS
Super-high-speed mode
Twin-output Models: 100 µs
Counter disabled for External-input Models: 80 µs
Counter enabled for External-input Models: 100 µs
1. Detection Method
Differential
Edge Selection
Differential
Response Time
(Twin-output Models only) Set separately for each channel.
Note: Refer to Basic Settings for teaching methods.
Differential operation mode
Operation is according to the change
in the incident light level.
For Twin-output Models, the output for
channel 2 is always an alarm output for
AB

A-464 Advanced Photoelectric Sensors
Light level Threshold
The incident light level
and threshold value
The information displayed in RUN mode can be selected.
When going to SET mode, this setting will be ignored and
the incident light level and threshold value will be displayed.
3. Display Switch
% light level Threshold
L-PE D-BT
Alternates at
a fixed interval
L-BT D-PE
Detection status
Light level PEAK
Light level Peak level
The current incident
light level and the peak
incident light level.
Light level Channel
The incident light level
and the channel.
Count
(External-input Models
Only) The counter value.
The incident light level
as a percentage of the
threshold value and the
threshold value.
The incidient light peak
level and no incident
light bottom level.
The min. incidient light
peak level and max. no
incident light bottom level.
The display is updated for
every 10 ON/OFF operati-
ons.
Analog bar display. The
current detection status
is displayed as an ana-
log bar. The bar will
lengthen from the right
AB
Tunes the power.
PTUN
0RST Executes a zero reset.
CRST (External-input Models Only)
Resets the counter.
The function of the MODE key in RUN mode can be
selected.
4. MODE Key
Setting
AB
1-ms increments1 to 20 ms
5-ms increments
20 to 200 ms
100-ms increments
200 ms to 1 s
1-s increments
1 to 5 s
Timer disabled.
----
OFF D OFF-delay timer
ON-D ON-delay timer
1SHT One-shot timer
Setting range: 1 to 5,000
Not
Set separately for each channel for Twin-output Models.
2. Timer
Timer Time

A-465E3C-LDA Series
E3C-LDA Series
The item that is controlled by the input from an external
device can be selected.
Through-beam, no-workpiece teaching
THRU
RFCT Reflective, no-workpiece teaching
2PNT With/Without workpiece teaching
Effective Pulse Widths
AUTO
PTUN Power tuning
0RST Zero reset
0.1 to 2 s
Executing: 0.1 to 2 s
Clearing: 3 s or longer
Effective ON pulse
width: 0.1 s min.
Selection Pulse width
LOFF
Light OFF (The light will remain OFF as
long as the input is ON.)
CRST
Counter reset
Resets the current counter value.
(External-input Models Only)
7. External Input
,
,
,
Automatic teaching
The maximum and minimum light le-
vels are sampled while the input is ON
and, when the input turns OFF, the
average of these values is set as the
threshold value.
Disabled if the detection function is set
to "DIFF" (differential operation).
A B
AB
Output for each channel.
2OUT
AREA
Output if level is between the two
thresholds.
SELF
The function of the output for channel 2 can be selected.
This setting is not value if DIFF (differential operation)
is set for the detection method. (The output for channel
2 is always an alarm output for differential operation.)
7. Twin Outputs (Twin-output Models Only)
The output for channel 1 functions according to the
detection mode selection.
Self-diagnosis output
Output when the incident light le-
vel
is not stable, i.e., when the light le-
vel is ±10% of the threshold value
Normal display
D123
321D Reversed display
6. Display
Orientation
Maximum power
FULL
Setting range: 100 to 3,900
5. Power Tuning
Target Value

A-466 Advanced Photoelectric Sensors
Convenient Functions
Zeroing the Main Display
The incident light level displayed on the main display can be zeroed. The threshold displayed in the sub-display is shifted by an
amount corresponding to the amount the incident light level was changed.
Confirm that the MODE key setting is 0RST (zero reset) in advance. PTUN (power tuning) is the default setting. Refer to Detailed
Settings.
Zero-reset is not possible if the detection function is set to "DIFF" (differential operation).
Setting range: 1 to 9,999,999
Disables counter.
OFF
CUP
CDO
Not
(External-input Models Only)
9. Counter
Counter Value
The count is incremented from 0 each
time an object is detected, and the out-
put is turned ON when the count rea-
ches the specified count value.
The count is decremented from the
specified count value each time an ob-
ject is detected, and the output is tur-
ned ON when the count reaches 0.
AB
Write results to EEPROM.
ON
OFF Do not write results to EEPROM.
Whether external input execution results are written to
EEPROM can be selected.
Disable this function if the external input is turned ON
frequently. (The write life is approximately 100,000 writes.)
(External-input Models Only)
8. External Input
Memory
Switch to RUN mode. Switch to RUN mode.
The display will be zeroed,
i.e., the incident light level
will be displayed as 0.
RUNSET RUNSET
Press the MODE key for
at least 3 seconds.
The display of the incident light
level will stop changing.
+
Light level Threshold Light level Threshold
Hold down the MODE key and
press the DOWN key for at
least 3 seconds.
Press the DOWN key right af-
ter pressing the MODE key.
The zero reset
function will be
cleared.
Setting Method Clearing Method

A-467E3C-LDA Series
E3C-LDA Series
Key Lock
All key operations can be disabled to help prevent key operating errors.
Only the operation keys are disabled. The switches and selectors will still function.
Initializing Settings
This procedure can be used to return all the settings to the original default values.
Switch to RUN mode. Switch to RUN mode.
RUNSET RUNSET
++
LOC ON LOC OFF
Hold down the MODE key and
press the UP key for at least 3 se-
conds. Press the UP key right af-
ter pressing the MODE key.
The sub-display will flash
twice and key input will be
disabled.
If a key is pressed while key operations are locked,
“LOC” will flash twice on the display to indicate that key
operations have been disabled.
Hold down the MODE key
and press the UP key for at
least 3 seconds. Press the
UP key right after pressing
the MODE key.
The sub-display will
flash twice and key
input will be enabled.
Setting Method Clearing Method
RUNSET
Initialization has been completed.
Settings not
initialized.
NO?
YES?
Settings
initialized.
Switch to SET mode.
Press the UP or DOWN key for at least 3 seconds.
+
INIT Press the MODE key at the
“NO?” or “YES?” display.
INIT GOOD
Setting Method

A-468 Advanced Photoelectric Sensors
Installing the Amplifier Unit
Mounting Units
Catch the hook on the Sensor Head connector end of the Unit
on the DIN Track and then press down on the other end of the
Unit until it locks into place.
Always attach the Sensor Head connector end first.
If the incorrect end is attached first, the mounting strength will
be reduced.
Removing Units
Press the Unit in the direction indicated by “1” and then lift up
on the Sensor Head connector end of the Unit in the direction
indicated by “2.”
Joining Amplifier Units (for Units with Connectors)
Up to 16 Units can be joined.
1. Mount the Amplifier Units one at a time onto the DIN Track.
2. Slide the Amplifier Units together and press the Amplifier
Units together until they click into place.
Secure the Units with an End Plate (PFP-M) if there is a pos-
sibility of the Amplifier Units moving, e.g., due to vibration.
Reverse the above procedure to separate and remove the
Units. Do not attempt to remove Amplifier Units from the DIN
Track without separating them first.
Connecting Sensor Heads
1. Open the protective cover
2. Making sure that the lock button is up, insert the fibers all
the way to the back of the connector insertion opening.
To disconnect the Sensor Head, pull out the fibers while
pressing on the lock button.
DIN Track
Hook on the Sensor Head connector end
DIN Track
1
2
1
1
2
1
2
Lock button

A-469E3C-LDA Series
E3C-LDA Series
I/O Circuits
Dimensions
Sensor Head
Reflector Amplifier Unit
Internal circuits
Load
Load
12 to
24 VDC
Brown
Black
Orange
Blue
Internal circuits
Load
Load
12 to
24 VDC
Brown
Black
Orange
Blue
E3C-LDA11 and E3C-LD6 (NPN Models) E3C-LDA41 and E3C-LD8 (PNP Models)
Internal circuits
Load
12 to
24 VDC
Brown
Black
Orange
External
input
Blue
E3C-LDA21 and E3C-LD7 (NPN Models) E3C-LDA51 and E3C-LD9 (PNP Models)
Internal circuits
Load
12 to
24 VDC
Brown
Black
Orange
Blue
Output
for chan-
Output
for chan-
Output
for chan-
Output
for chan-
External
input
Control output
Control
output
33
12.8
25
E3C-LD11
1
8
27
C
onnecto
r
Two
,
R 2.
6
3
.
1
1
8
.
8
2
5
2
0
5
.
1
27.7
33
R 4.
8
Two
,
3.2-dia.
mountin
g
hole
s
Round vinyl-clad cable, 1.8 dia.
und ×2 conductors
(cross-sectional area of conductor: 0.15 mm
2)
Standard len
g
th: 2
m
E3C-LR11
25
39 12.8
24 17.2
12
E39-R12/-R14
45 37
30
E39-R13
76
32
10
E3C-LDA11

A-470 Advanced Photoelectric Sensors
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. E13E-EN-01