OMRON ZX1-LD300 (01) PDF Document

The safety signal words and signs on the OMRON ZX1-LD300 instruction sheet indicate the following:

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.

Signs:

• Laser beam icon: Indicates caution on potential laser beam hazard.
• Do not disassemble icon: Indicates prohibition when there is a risk of minor injury from electrical shock or other source if the product is disassembled.

The following are the primary safety warnings for the OMRON ZX1-LD300:

1. 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.

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

The OMRON ZX1-LD300 uses a laser as the light source and is classified based on EN standard (EN 60825-1). The ZX1-LD series is categorized as a Class 2 or Class 1 device as stipulated in EN60825-1:2007. When using devices in which the ZX1-LD is installed in the U.S., they are subject to U.S. FDA laser regulations. The series is classified into Class 2 or Class 1 by the standard of IEC/EN60825-1 and has been reported to CDRH (Center for Devices and Radiological Health).

You must replace the WARNING label or explanatory label with the corresponding supplied English label and affix the FDA Certification label at the correct locations as indicated in the manual.

To ensure safety in operation, the following precautions must be observed for the OMRON ZX1-LD300.

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: M4, 1.2 N·m (for ZX1-LD300).

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.

For correct use of the OMRON ZX1-LD300, please observe the following precautions.

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)

When mounting the OMRON ZX1-LD300, observe the following:

• Detection Near the Wall Surface: The Sensor is less influenced by ambient lighting when mounted in a certain orientation but can be easily influenced in another, which 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 tuning, apply mat paint on the wall surface or turn ON the background suppression function to avoid laser light reflection.

The table below shows individual external I/O wires and their roles for the OMRON ZX1-LD300. Unused wires must be insulated. Incorrect wiring may result in damage to the Sensor.

The I/O circuit diagrams for NPN and PNP output types are available in the instruction sheet. Ensure correct connection to avoid damage.

To mount the OMRON ZX1-LD300, use M4 screws with a tightening torque of 1.2 N·m. Do not touch the sensor emitter and receiver sections. Correct detection may not be possible if fingerprints are attached to these areas. If you inadvertently touch the areas, wipe them using a soft, clean cloth.

The nomenclature and functions of the OMRON ZX1-LD300 display are as follows:

• [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 is within the range of 1L to 1H.
• OUT2 Output indicator (Orange): Turns ON when the value exceeds Threshold 2 or is 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 for 3 seconds or longer. Switches to CH Setting mode when pressed less than 3 seconds.
• [UP] button: Used to change a threshold value or select a setting item.
• [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.

Other Button Operations:

To switch the channel and set a threshold in CH Setting Mode:

1. Briefly press the MODE button in Measurement mode.

2. The channel display changes in the sequence CH-1 -> CH-2 (or CH1H -> CH1L -> CH2H -> CH2L if Area Output is ON) by pressing the UP/DOWN button.

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

Use 2-point tuning to distinguish between two objects with different heights (e.g., workpiece and background). The order of presenting the workpieces does not matter.

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

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

Use 1-point tuning to judge the presence/absence of a workpiece 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 [tunE] -> [t-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 using upper and lower limit workpieces. The order does not matter.

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

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

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

This method assigns upper and lower limits to one actual workpiece to judge if it is within range.

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) with a workpiece on the reference surface until [tunE] blinks.

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

If the standard tuning methods fail, you can use the “Tuning mode without Workpiece”. Hold the TUNE button (5 sec. or longer) until [tunE] blinks rapidly without a workpiece. When [tunE] starts blinking rapidly, release the TUNE button.

• Area Output is OFF: Used to judge presence/absence using a pre-determined background as a reference. This method focuses on detecting the absence of a workpiece. Insufficient light level or outside-range errors from complicated workpieces are judged as “presence”.
• Area Output is ON: Used to assign upper and lower limits to the distance from the reference surface. This method focuses on detecting the absence of a workpiece. Insufficient light level or outside-range errors from complicated workpieces are judged as “presence”.

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

• Press the UP button to increase the threshold.
• Press the DOWN button to decrease the threshold.

The OUT1 indicator keeps blinking while “Threshold 1/ Threshold 1H/ Threshold 1L” is being changed. The OUT2 indicator keeps blinking while “Threshold 2/ Threshold 2H/ Threshold 2L” is being changed.

The Zero Reset function resets the present distance value to “0”.

To Perform a Zero Reset:

Simultaneously press the UP+TUNE buttons or the DOWN+TUNE buttons once for a short time. The present value changes to “0” and the zero reset indicator turns ON. Alternatively, turn the external zero reset input terminal ON for 4 ms or longer and less than 3 seconds.

To Cancel a Zero Reset:

Simultaneously press the UP+TUNE buttons or the DOWN+TUNE buttons for at least 3 seconds. Alternatively, turn the external zero reset input terminal ON for 3 seconds or longer.

The Key Lock function disables button operations in Measurement mode to avoid mis-operation.

To Lock the Keys:

Simultaneously press the UP+MODE buttons or the DOWN+MODE buttons for at least 3 seconds. The display shows [LoC].

To Unlock the Keys:

Simultaneously press the UP+MODE buttons or the DOWN+MODE buttons for at least 3 seconds. The key lock state is retained after power is turned OFF.

To enter the Menu Setting mode, hold the MODE button for at least 3 seconds. Press the MODE button again to move to the next item menu. All settings are common to CH1 and CH2.

The available settings are:

1. Output Polarity [PoL]: Select normally-open [no] or normally-closed [nC] output.
2. Tuning Type [tunE]: Select tuning method: Type discrimination by time [tinE], 2-point tuning [2PnS], Tuning mode without workpiece [oFF-t], or 1-point tuning [1PnL].
3. Response Time [SPd]: Set response time to Standard [Stnd] (50 ms), High-speed [HS] (10 ms), or Super high-speed [SHS] (1.5 ms).
4. Keep Function [YEEP]: Set output content during a measurement error. [oFF]: Both outputs OFF, Monitor outputs clamp value. [on]: Outputs the immediately previous value.
5. Scaling Function [SCAL]: Configure the range of analog outputs. Standard [Stnd] sets an initial value based on output. User [USEr] allows arbitrary setting of measurement values for 4mA and 20mA.
6. Background Suppression Function [SArt]: [oFF]: Sensitivity is not restricted. [on]: Post-tuning measured value and sensitivity are restricted. The smart tuning indicator turns ON.
7. Hysteresis width [HYS]: Standard [Stnd] sets an initial value. User [USEr] allows setting an arbitrary hysteresis width.
8. Timer Function [tinEr]: Specify timer operation. Options are OFF [toFF], Off-delay [oFFd], On-delay [on-d], One shot [Shot], or On/Off-delay [onoFF]. Timer value can be set from 1 to 9999 ms.
9. Area Output [A-ER]: [oFF]: Area output is not used. [on]: Area output is used, turning ON when the measured value is between Threshold L and Threshold H.
10. Zero Reset Memory [SA]: [oFF]: Zero reset memory disabled. [on]: Zero reset memory enabled (holds value after power cycle).
11. Eco Function [Eco]: [oFF]: Eco function disabled. [on]: Eco function enabled (turns off digital display after 30 seconds of inactivity).
12. Setting Reset [rSt]: Resets all settings to factory default. Select [YES.P] and press MODE to execute.