OMRON E3C-LDA41AN (01) PDF MANUAL

The main parts are:

① Operation indicator: Lit when the output is ON.

② Main display (red): Displays the incident light level or the function name.

③ Power tuning indicator: Lit when power tuning is set.

④ Sub-display (green): Displays supplemental detection information, the setting of a function, etc.

⑤ SET/RUN switch: Used to switch the mode.

⑥ Operation mode selector: Used to select dark-ON or light-ON operation.

⑦ Operation keys: Used to change the display, set functions, etc.

Use the SET/RUN switch to select the mode:

SET Mode: Select to set detection conditions, teach the threshold value, etc.

RUN Mode: Select for actual detection operation or to perform manual adjustment of threshold value, teaching power adjustment, zero reset, or key lock.

The functions of the keys depend on the current mode:

Key	RUN mode Function	SET mode Function
UP key	Increases the threshold value.	Depends on the setting. Executes teaching. Changes the setting forward.
DOWN key	Decreases the threshold value.	Depends on the setting. Executes teaching. Changes the setting in reverse.
MODE key	Depends on the MODE key setting. – Teaching – Executes power tuning. – Executes a zero reset.	Switches the function to be set on the display.

Note: If a specific time for pressing a key is not given in a procedure, press the key for approximately 1 second.

The information displayed depends on the current mode:

Mode	Main display (red)	Sub-display (green)
SET	Displays the incident light level, function name, or other information depending on the key operation.	Displays threshold value or the setting of the function displayed on the main display depending on the key operation.
RUN (default)	The current incident light level will be displayed.	The current threshold value will be displayed.

Note: The information that appears on the displays can be set using the display switch function (Refer to 5. Detailed Settings).

Select either light-ON or dark-ON operation in SET mode. Refer to 5. Detailed Settings for how to access this setting.

Selection	Description
LON (light-ON) (default)	The output will turn ON when the incident light level is above the threshold.
DON (dark-ON)	The output will turn ON when the incident light level is below the threshold.

Power tuning adjusts the incident light level to the power tuning target value (default: 2,000). Ensure the detection object and Head are secured and the incident light level is stable before tuning.

Setting Method:

1. Confirm the MODE key setting is PTUN (power tuning). PTUN is the default setting (Refer to 5. Detailed Settings if needed).

2. Switch the SET/RUN switch to RUN mode.

3. Press the MODE key for at least 3 seconds. A progress bar `[PTUN]` will appear on the sub-display.

4. Release the MODE key when the progress bar appears. The main display shows `[PTUN]` and the sub-display alternates between `[PTUN]` and the target value (e.g., `[2000]`) during tuning.

5. Tuning completes, and the previous display returns.

CHECK! The power tuning target value can be changed (Refer to 5. Detailed Settings). The incident light level may change if the detection method is changed; retune power if necessary.

If an error display appears after the progress bar during power tuning:

• `[PTUN OVER]` (Flashes twice): Over Error – The incident light level is too low for the target value. Power can be increased up to approx. 1.5 times the current level without tuning.
• `[PTUN BOTM]` (Flashes twice): Bottom Error – The incident light level is too high for the target value. Power can be decreased down to approx. 1/8th the current level without tuning.

1. Switch to RUN mode.

2. Hold down the MODE key and press the DOWN key for at least 3 seconds. (Press DOWN right after pressing MODE).

3. The sub-display `[PTUN OFF]` will flash twice, indicating power tuning is cleared.

1. Switch the SET/RUN switch to RUN mode.

2. Use the UP and DOWN keys to adjust the threshold value displayed on the sub-display.

– UP key: Increases the threshold value.

– DOWN key: Decreases the threshold value.

3. The main display shows the current light level, and the sub-display shows the threshold being set (e.g., `[2730 1000]`).

4. The display will return to its configured display switch setting approximately 5 seconds after the threshold is changed.

This method sets the threshold between the light levels measured with and without a workpiece. It can be used with any sensor head. This can be done in RUN mode or SET mode (ensure MODE key is set to 2PNT, refer to 5. Detailed Settings). PTUN is the default setting for the Mode key.

Procedure:

1. Switch to RUN mode (or SET mode if configured).

2. Position the workpiece.

3. Press the UP or DOWN key for approximately 1 second. The sub-display shows `[TECH]`.

4. Remove the workpiece.

5. Press the UP or DOWN key again for approximately 1 second. The sub-display shows `[TECH]`.

6. The calculated threshold value (e.g., `[1300]`) will flash twice on the sub-display, indicated by `[2PNT]`. Teaching is complete.

After performing teaching, if the following appears on the sub-display, an error occurred. The threshold is set but detection might be unreliable:

• `[oVER]` (Flashes twice): Over error – Light level is too large. Adjust the Head to decrease the incident light level or execute power tuning, then repeat teaching.
• `[LoF]` (Flashes twice): Low error – Light level is too small. Adjust the Head to increase the incident light level or execute power tuning, then repeat teaching.
• `[nEAr]` (Flashes twice): Near error – The difference in incident light levels is too small. Adjust the Head to increase the difference between the two light levels, then repeat teaching.

This method is performed without a workpiece and sets the threshold about 6% less than the stable incident light level. It’s ideal for detecting very small differences.

Procedure:

1. Switch to RUN mode.

2. Remove any workpiece (ensure stable light path to reflector or receiver).

3. Press the UP or DOWN key for at least 3 seconds. The sub-display shows `[TECH]`.

4. The threshold value (e.g., `[1880]`) will flash twice on the sub-display, indicated by `[THRU]`. Teaching is complete.

This method is performed without a workpiece (teaching the background) and sets the threshold about 6% greater than the incident light level. It’s ideal for detecting very small differences in light level.

Procedure:

1. Switch to RUN mode.

2. Remove any workpiece (ensure sensor sees the stable background).

3. Press the UP or DOWN key for at least 3 seconds. The sub-display shows `[TECH]`.

4. The threshold value (e.g., `[2120]`) will flash twice on the sub-display, indicated by `[RFCT]`. Teaching is complete.

Automatic teaching sets the threshold to the midpoint between the maximum and minimum light levels detected while the MODE key is held down, typically as the work moves. This can be used with any sensor head. Ensure the MODE key setting is AUTO (Refer to 5. Detailed Settings). PTUN is the default setting.

Procedure:

1. Switch to RUN mode.

2. Press and hold the MODE key for 3 seconds or more while the workpiece(s) move past the sensor.

3. During this time, the sub-display shows `[AUTO]`, and the main display shows the live light level (e.g., `[AUTO 1000]`). Sampling is active.

4. Release the MODE key.

5. The calculated threshold value (e.g., `[AUTO 1300]`) will flash twice on the sub-display. Teaching is complete.

Item	Specification
Model number	NPN: E3C-LDA11AN, PNP: E3C-LDA41AN
Connection method	Prewired
Supply voltage	12 to 24 VDC ±10%, ripple (p-p) 10% max.
Power consumption	1,080 mW max. (45 mA max. at 24 V)
Control output	Open collector (26.4 VDC max.); load current: 50 mA max.; residual voltage: 1 V max. Response time is the same as that of an analog output.
Analog output	Voltage output (DC 1 to 5V)
Connection load	10kΩ min
Temperature characteristic	0.3%F.S./°C
Response time / Resolution	SHS: 100µS / 4.0%F.S. HS: 250µS / 4.0%F.S. STND: 1ms / 2.0%F.S. HRES: 4ms / 2.0%F.S.
Timer	OFF, OFF-delay, ON-delay, or one-shot
Timer time	1 ms to 5 s
Power tuning	Supported
APC function	Supported
Mutual interference prevention*2	Supported (optical communications sync method)
Ambient temperature (Operation)	Groups of 1 to 2 Sensors: -25°C to 55°C
	Groups of 3 to 10 Sensors: -25°C to 50°C
	Groups of 11 to 16 Sensors: -25°C to 45°C
Ambient temperature (Storage)	-30°C to 70°C
Ambient humidity	Operation/Storage: 35 to 85%RH (With no condensation)
Vibration (Durability)	10 to 55 Hz, 1.5mm double amplitude, 2 hours each in X, Y, and Z directions

*1: The extension of the code becomes it up to 10m.

*2: Communications are disabled if SHS is selected for the detection mode, and the communications functions for mutual interference prevention and the Mobile Console will not function. Please turn on the power supply at the same time to the joining sensors.

*3: Mutual interference prevention can be used for only up to 6 Units if power tuning is enabled.

1) Do not use in environments subject to flammable or explosive gases.

2) Do not use in environments subject to exposure to water, oil, chemicals, etc.

3) Do not attempt to disassemble, repair, or modify the Amplifier Unit.

4) Do not apply voltages or currents that exceed the rated ranges.

5) Wire the Amplifier Unit correctly, e.g., do not reverse power supply polarity.

6) Connect the load correctly to the control output and analog output.

7) Do not short both ends of the load connected to the control output or analog output.

8) Do not use the Amplifier Unit if the case is damaged.

9) Dispose of the Amplifier Unit as industrial waste.

1) Wire separately from power supply or high-voltage lines to prevent inductive noise.

2) Do not extend the cable beyond 10 m; use wire size 0.3 mm² or larger for extensions.

3) The Amplifier Unit is ready 200 ms after power ON. If load power is separate, power the Amplifier Unit first. Power on connected units simultaneously for mutual interference prevention and mobile console use (within 30ms difference).

4) Incident light level may require time to stabilize after power ON, depending on environment.

5) Always keep the protective cover in place during use.

6) Always turn OFF power before connecting/disconnecting Sensor Heads, joining/separating units, or adding units.

7) If data is not written correctly due to power failure/static noise, initialize settings using the keys.

8) Use only the E3X-MC11-SV2 Mobile Console; other consoles may not work or have limited function.

9) Optical communications are not possible when connected with an E3X-DA-N Amplifier Unit.

10) Output pulses may occur during power interruption; turn OFF power to the load/load line before turning OFF Sensor power.

11) Do not use thinners, benzine, acetone, or kerosene for cleaning.

12) Do not connect E2C Sensor Heads; it may cause damage.

1. Switch the SET/RUN switch to SET mode.

2. The display will show the current incident light level and threshold (e.g., `[2730 1000]`).

3. Press the MODE key briefly (approx. 1 sec) to cycle through the available functions (Detection Method, Timer, MODE Key Setting, Display Switch, Display Orientation, Analog offset value setting).

4. Use the UP and DOWN keys to change the setting for the currently displayed function.

5. The settings transition as shown in the function diagrams in the PDF.

In SET mode, navigate to the Detection Method function (`1-Fn`). Use the UP or DOWN keys to select the desired mode:

STND: Standard mode

HRES: High-resolution mode

SHS: Super-high-speed mode

HS: High-speed mode

In SET mode, navigate to the Timer function (`2-tF`). Use the UP or DOWN keys to select the timer type:

OFFd: Timer disabled (Default)

on-d: ON-delay timer

1SHT: One-shot timer

If a timer function (OFFd, on-d, 1SHT) is selected, press MODE again to access the Timer Time setting (`tt`). Use UP/DOWN keys to set the time from 1 ms to 5,000 ms (5 s) according to the following increments:

1 to 20 ms: 1-ms increments

20 to 200 ms: 5-ms increments

200 ms to 1 s: 100-ms increments

1 to 5 s: 1-s increments

In SET mode, navigate to the MODE Key Setting function (`3-Md`). Use the UP or DOWN keys to select what the MODE key does when pressed in RUN mode:

Ptun: Tunes the power (Power Tuning – Default)

OrSt: Executes a zero reset

2Pnt: Performs Teaching With and Without a Workpiece

AUto: Performs Automatic teaching

If Power Tuning (Ptun) is selected, press MODE again to access the Power Tuning Target Value setting (`PL`). Use UP/DOWN keys to set the target value from 100 to 3,900, or select `FULL` for maximum power. The default target value is 2,000.

In SET mode, navigate to the Display Switch function (`4-dP`). Use the UP or DOWN keys to select the desired display combination for RUN mode:

`[3112 2000]` (Default): Main display shows Incident Light Level, Sub-display shows Threshold Value.

`[P123 2000]` : Main display shows % Light Level (relative to threshold), Sub-display shows Threshold Value.

`[PEAK bot]` (Alternating): Main display shows Peak Incident Level, Sub-display shows Bottom Incident Level (within a fixed time).

`[L-PE d-bt]` : Analog bar display representing detection status.

`[3112 PEAK]` : Main display shows Incident Light Level, Sub-display shows Peak Incident Level.

`[3112 2ch]` : Main display shows Incident Light Level, Sub-display shows Channel number (if applicable).

In SET mode, navigate to the Display Orientation function (`5-rU`). Use the UP or DOWN keys to select:

d123: Normal display (Default)

321d: Reversed display

In SET mode, navigate to the Analog offset value setting function (`6-Ao`). Use the UP or DOWN keys to adjust the offset voltage for the analog output.

The setting range is -1999 to 4,000.

A digital value of 1 corresponds to approximately 1mV.

Use this setting for fine-tuning when connected to a digital panel meter, etc.

This shifts the displayed incident light level so the current level reads as 0. The threshold value is shifted accordingly. Ensure the MODE key setting is ORST (zero reset) (Refer to 5. Detailed Settings). PTUN is the default.

Setting Method:

1. Switch to RUN mode.

2. Press the MODE key for at least 3 seconds.

3. The main display will show 0 (e.g., `[0 1130]`), indicating the current light level is now treated as zero, and the threshold is adjusted.

Clearing Method:

1. Switch to RUN mode.

2. Hold down the MODE key and press the DOWN key for at least 3 seconds (Press DOWN right after pressing MODE).

3. The zero reset function will be cleared, and the display will return to showing the actual incident light level and original threshold (e.g., `[2730 1000]`).

Key lock disables the UP, DOWN, and MODE keys to prevent accidental changes. Switches and selectors remain functional.

Setting Method (Enable Lock):

1. Switch to RUN mode.

2. Hold down the MODE key and press the UP key for at least 3 seconds (Press UP right after pressing MODE).

3. The sub-display `[Loc on]` will flash twice, and key input will be disabled.

Note: If a key is pressed while locked, `[Loc on]` will flash twice.

Clearing Method (Disable Lock):

1. Switch to RUN mode.

2. Hold down the MODE key and press the UP key for at least 3 seconds (Press UP right after pressing MODE).

3. The sub-display `[Loc oFF]` will flash twice, and key input will be enabled.

1. Switch the SET/RUN switch to SET mode.

2. Press and hold both the UP and DOWN keys simultaneously for at least 3 seconds.

3. The display will show `[init no?]`.

4. Press the MODE key while `[init YES?]` is displayed (use UP/DOWN to toggle between NO?/YES? if needed).

5. The display will show `[init Good]`, indicating initialization is complete and settings are reset to defaults.

1. Catch the hook on the Sensor Head connector end of the Amplifier Unit onto the DIN Track.

2. Press down on the other end of the Unit until it clicks and locks into place.

Important: Always attach the Sensor Head connector end first for proper mounting strength.

1. Press the Amplifier Unit in the direction indicated by arrow “1” (towards the DIN track).

2. Lift up on the Sensor Head connector end of the Unit in the direction indicated by arrow “2” (away from the DIN track).

Up to 16 Amplifier Units can be joined.

1. Mount the Amplifier Units one at a time onto the DIN Track, sliding them together.

2. If there’s a possibility of movement due to vibration, secure the group of Units using an End Plate (PFP-M) on the DIN Track.

1. Open the protective cover on the Amplifier Unit.

2. Ensure the lock button on the connector port is in the up (unlocked) position.

3. Insert the fiber ends fully into the connector insertion opening until they stop.

4. Push the lock button down to secure the fibers.

To disconnect: Press down on the lock button and pull the fibers out.