OMRON ZX1-LD100 (01) PDF Document

Meanings of Signal Words

WARNING: Indicates a potentially hazardous situation which, if not avoided, will result in minor or moderate injury, or may result in serious injury or death. Additionally there may be significant property damage.

Explanation of Signs

Laser beam symbol: Indicates caution on potential laser beam hazard.

Do not disassemble symbol: Indicates prohibition when there is a risk of minor injury from electrical shock or other source if the product is disassembled.

Do not expose your eyes to the laser radiation either directly (i.e., after reflection from a mirror or shiny surface). Loss of sight may possibly occur in case of the exposure to laser high power density.

Do not disassemble the product. Doing so may cause the laser beam to leak, resulting in the danger of visual impairment.

Installation Environment

• Do not use the Sensor in locations subject to explosive or flammable gases.

• To ensure safety in operation and maintenance, do not install the Sensor near high-voltage equipment or power devices.

Power Supply and Wiring

• Do not impose voltage exceeding the rated voltage: 10 to 30 VDC, including 10% ripple (p-p).

• When supplying power to the Sensor, make sure that the polarity of the power is correct, and do not connect to an AC power supply.

• Do not short-circuit the load for the open collector output. Short-circuiting the load may cause fire or damage on the Sensor.

• Connect the load correctly. Short-circuiting the load may cause fire or damage on the Sensor.

• Keep the load within the rated range. Overloading may result in fire or damage on the Sensor.

• Wire the product cable separately from high-voltage or power lines. Placing them in the same wiring or the same duct may cause induction, resulting in the product malfunction or damage.

• Always turn off the power of the Sensor before connecting or disconnecting the cable or connector.

• Do not use the Sensor for the safety circuits in nuclear power or life-critical applications.

• Implement safety measures e.g. fail-safe circuits.

Installation

• Make sure that all installation screws must be tightened securely.

• Tightening torque: M3, 0.5N·m (ZX1-LD50/ZX1-LD100) or M4, 1.2N·m (ZX1-LD300/ZX1-LD600)

Others

• Do not attempt to disassemble, deform by pressure, incinerate, repair, or modify this product.

• When disposing of the product, treat as industrial waste.

• If you notice an abnormal condition such as a strange odor, extreme heating of the unit, or smoke, immediately stop using the product, turn off the power, and consult your dealer.

Installation Location

Do not install the product in locations subjected to the following conditions:

• Surrounding air temperature outside the rating

• Rapid temperature fluctuations (causing condensation)

• Relative humidity outside the range of 35 to 85%

• Presence of corrosive or flammable gases

• Presence of dust, salt, or iron particles

• Direct vibration or shock

• Reflection of intense light (such as other laser beams, electric arc-welding machines, or ultra-violet light)

• Direct sunlight or near heaters

• Water, oil, or chemical fumes or spray, or mist atmospheres

• Strong magnetic or electric field

• In the water, rain, or outdoors

Power Supply and Wiring

• Do not supply the power to the Sensor before checking the I/O wiring.

• Ground the FG terminal when using a commercially-available switching regulator.

• If the power supply line is subject to surges, connect a surge absorber that meets the conditions of the operating environment.

• Do not turn ON the power after wiring before making sure that the power supply is connected correctly; there are no faulty connections, e.g. load short-circuits; the load current is correct. Incorrect wiring may result in failure.

• Use a ZX0-XCR Extension Cable (sold separately) to extend the Sensor’s cable. Use only one cable. Do not extend the cable for the Sensor to a length exceeding 20 m.

• The display and indicators turn ON after approx. 2.5 seconds after the power is turned ON.

Warming Up

• After turning ON the power, allow the Sensor to warm up for approx. 30 minutes prior to use. The circuitry is not stable immediately after turning the power ON, and the values gradually change until the Sensor is completely warmed up. When using LD-OFF input for a long period of time, perform warming up for more than 30 minutes after cancelling LD-OFF.

Maintenance and Inspection

• Always turn OFF the power of the Sensor before connecting or disconnecting the cable or for making adjustment.

• Do not use thinner, alcohol, benzene, acetone, or kerosene to clean the Sensor.

• If considerable foreign matter or dust collects on the glass surface of the front of Sensor, use a blower brush (for camera lenses) to blow off the foreign matter. Avoid blowing it off with your breath. For a small amount of foreign matter or dust, gently wipe with a soft cloth. Do not wipe hard. The damaged glass surface may result in detection errors.

Sensing Object

The product cannot accurately measure the following types of objects: Transparent objects, objects with an extremely low reflective sensor ratio, objects smaller than the spot diameter, objects with a large curvature, excessively inclined objects, etc.

• Sensor: 1

• Instruction sheet (this sheet): 1 each (Japanese and English)

• FDA Certification label: 1

• Laser Warning Label: 1 each (Japanese and English)

(The explanatory labels are attached to ZX1-LD_L instead of the warning explanation labels.)

• Detection Near the Wall Surface: Mount the sensor so it is less influenced by ambient lighting. Mounting it in a way where it is easily influenced by ambient lighting may cause detection value variations.

• Cavity Detection: Detection is not possible if the emitter or receiver section is blocked.

• Detection of Workpiece with Level Difference: Stable detection is possible regardless of level difference. However, a level difference may cause an abnormal detection value. Before performing tuning, apply mat paint on the wall surface or turn ON the background suppression function to avoid laser light reflection.

The individual external I/O wires and their roles are as follows:

Important Wiring Checks:

• The individual wire colors and roles are the same between pre-wired and connector joint models.

• Wire the Sensor correctly. Unused wires must be insulated. Incorrect wiring may result in damage to the Sensor.

To mount the sensor, use the appropriate screws and tightening torque:

• For ZX1-LD50 and ZX1-LD100: Use M3 screws with a tightening torque of 0.5 N·m.

• For ZX1-LD300 and ZX1-LD600: Use M4 screws with a tightening torque of 1.2 N·m.

Mounting Check:

Do not touch the sensor emitter and receiver sections. Correct detection may not be possible if fingerprints are attached to these areas. If fingers have inadvertently touched the areas, wipe the areas using a soft, clean cloth.

Nomenclature and Function

• [MENU] Menu Indicator (Orange): Turns ON in MENU setting mode.

• [ZERO] Zero reset indicator (Orange): Turns ON when zero reset is set.

• OUT1 Output indicator (Orange): Turns ON when the value exceeds Threshold 1 or within the range of 1L to 1H.

• OUT2 Output indicator (Orange): Turns ON when the value exceeds Threshold 2 or within the range of 2L to 2H.

• [LD ON] Laser ON indicator (Green): Turns ON when sensor is emitting laser.

• [ST] Smart tuning indicator (Blue): Turns ON when tuning is performed with the background suppression function ON.

• [TUNE] button: Used to perform tuning.

• [MODE] button: Switches between Measurement mode and MENU setting mode by holding it for 3 seconds or longer. Switches to CH Setting mode when it is pressed less than 3 seconds.

• [UP]/[DOWN] button: Used to change a threshold value or select a setting item.

• Digital display: Displays the displacement volume in Measurement mode and setting item/setting value in other modes.

To enter CH Setting Mode and switch channels:

1. Briefly press the UP/DOWN button in Measurement mode.

2. The channel display changes in the following sequence by pressing the UP/DOWN button: CH-1 -> CH-2. If Area Output is ON, the sequence is: CH1H -> CH1L -> CH2H -> CH2L.

3. Press the MODE button to return to measurement mode.

This method is used to distinguish between two objects with different heights (e.g., workpiece and background).

1. Press the TUNE button (within 1 sec.) once without a workpiece. The display changes from [tunE] to [t-P1] to [Pnt 2].

2. Lightly press the TUNE button once again with a workpiece. The display changes from [tunE] to [Pnt 2], and 2-point tuning is completed. The measured value display returns.

The order of the workpiece does not matter.

This method is used to judge presence/absence by referring to a pre-determined background (reference surface).

1. Hold the TUNE button (minimum 3 and less than 5 seconds) until [tunE] blinks without a workpiece.

2. When [tunE] starts blinking, release the TUNE button. The display changes from [tunE] to [-P1] and 1-point tuning is completed. The measured value display returns.

This method is used to judge if a workpiece is within a specified range.

1. Select “ON” for area output in the menu setting mode to return to measurement mode.

2. Set the workpiece at the desired upper limit and lightly press the TUNE button. The display changes from [tunE] to [t-P1] to [Pnt 2].

3. Set the workpiece at the desired lower limit and lightly press the TUNE button. The display changes from [tunE] to [Pnt 2] and 2-point tuning is completed. The measured value display returns.

The order of the workpiece does not matter.

This method is used to assign upper and lower limits to one actual workpiece.

1. Set the AREA item in the menu to “ON” and return to the measured value display.

2. Hold the TUNE button (3 to less than 5 seconds) until [tunE] blinks with a workpiece to detect on the reference surface.

3. When [tunE] starts blinking on the display, release the TUNE button. The display changes from [tunE] to [t-P1] and 1-point area tuning is completed. The measured value display returns.

If methods (2) to (5) fail, you can use the “Tuning mode without Workpiece” method. Hold the TUNE button for 5 seconds or longer until [tunE] blinks rapidly without a workpiece. Release the button when it starts blinking rapidly.

• Area Output is OFF: Used to judge presence/absence using a pre-determined background. This method focuses on detecting the absence of a workpiece. Insufficient light level or outside-range errors are judged as “the presence of the workpiece”.

• Area Output is ON: Used to assign upper and lower limits based on the reference surface. This method focuses on detecting the absence of a workpiece. Insufficient light level or outside-range errors are judged as “the presence of the workpiece”.

Fine Adjustment of Threshold Value

To loosen or tighten the ON/OFF switching conditions, use the UP and DOWN buttons for minute adjustment of the threshold values.

• Press UP to increase the threshold.

• Press DOWN to decrease the threshold.

The OUT1 or OUT2 indicator will blink while its corresponding threshold is being changed.

Fine Adjustment of Hysteresis Width

Hysteresis is the distance between the operating point (OFF to ON) and the return point (ON to OFF). You can adjust this width to judge minute steps. Lowering the hysteresis width may cause the judgment output to vary if the displacement value is varying due to a moving workpiece or low reflection light intensity. The direction where the hysteresis width is set differs depending on the ON/OFF state of the area output.

Zero Reset

1. Simultaneously press the UP/DOWN and TUNE buttons once for a short time. The present value changes to “0” and the zero reset is completed. The zero reset indicator turns ON. This can also be done by turning the external zero reset input ON for 4 ms or longer and less than 3 seconds.

Zero Reset Cancel

1. To cancel the zero reset function, simultaneously press the UP/DOWN and TUNE buttons for at least 3 seconds. This can also be done by turning the external zero reset input ON for 3 seconds or longer.

Key Lock Function

This is used to disable button operations in Measurement mode.

1. Simultaneously press the UP/DOWN and MODE buttons for at least 3 seconds. The display shows [LoC].

Key Lock Cancel

1. To unlock the key operation, simultaneously press the UP/DOWN and MODE buttons for at least 3 seconds.

A key lock state is retained after power is turned ON.

To enter the Menu Setting mode, hold the MODE button for at least 3 seconds. Press the MODE button to move to the next item menu. Press the UP/DOWN buttons to change settings. The settings are common to CH1 and CH2.