OMRON ZX1-LD600 (01) PDF Document

Observe the following precautions to ensure safe operation:

WARNINGS:

• Do not expose your eyes to the laser radiation either directly or after reflection from a mirror or shiny surface. Loss of sight may possibly occur in case of 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: M4, 1.2N·m (for OMRON 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.

The package for the OMRON ZX1-LD600 contains the following items:

• 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-LDL instead of the warning explanation labels.)

When mounting the OMRON ZX1-LD600, consider the following:

• Detection Near the Wall Surface: The sensor is less influenced by ambient lighting when mounted perpendicular to the surface, but more easily influenced by ambient lighting when mounted parallel, 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 significant 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.

• Handling: 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 them using a soft, clean cloth.

To mount the OMRON ZX1-LD600, use M4 screws with a tightening torque of 1.2 N·m.

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

Follow these steps to switch the channel in CH Setting Mode:

1. Briefly press the MODE button in Measurement mode.

2. The channel display changes in the following sequence by pressing the UP/DOWN buttons: 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.

Use 2-point tuning to distinguish between two objects with different heights (e.g., workpiece and background). The order of the workpiece 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 to [tunE] → [Pnt 2] and 2-point tuning is completed. The measured value display returns.

The margin (D) for the Threshold is a fixed value based on the model:

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 from [tunE] → [t-P1] and 1-point tuning is completed. The measured value display returns.

The margin (D) for the Threshold is a fixed value based on the model:

First, press the MODE button to enter CH setting mode, and then press the UP or DOWN button to select a channel. Then perform one of the following operations:

Note: TUNE1 and TUNE2 external input terminals can also be used for tuning CH1 and CH2 respectively. The tuning type can be fixed in Detailed Settings. When the background suppression function is ON, the measurement value and sensitivity can be limited.

Use 2-point area tuning to judge if a workpiece is within a specified range. The order of the workpiece does not matter.

1. In the menu setting mode, select “ON” for area output 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. The display changes to [tunE] → [Pnt 2] and 2-point tuning is completed. The measured value display returns.

The margin (D) for the upper/lower limit is a fixed value based on the model:

Use 1-point area tuning to assign upper and lower limits to one actual workpiece and judge if other workpieces are within that 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 to detect on the reference surface until [tunE] blinks.

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

The margin (D) for the upper/lower limit is a fixed value based on the model:

If the standard tuning methods fail, you can use “Tuning mode without workpiece”. Hold the TUNE button for 5 seconds or longer without a workpiece.

• Area Output is OFF: This mode judges the presence/absence of a workpiece using the pre-determined background. It focuses on the detection of the absence of the workpiece. Insufficient light level or outside-range errors caused by complicated workpiece appearance are judged as “the presence of the workpiece”.

• Area Output is ON: This mode assigns upper and lower limits to the distance from the reference surface. It focuses on the detection of the absence of the workpiece. Insufficient light level or outside-range errors caused by complicated workpiece appearance are judged as “the presence of the workpiece”.

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.

A minute step can be judged by adjusting the hysteresis width according to the workpiece. Hysteresis width is the distance between the operating point (when the output turns from OFF to ON) and the return point (when the output turns from ON to OFF). Note that the judgment output may vary if lowering the hysteresis width while the displacement value is varying due to a moving workpiece or low reflection light intensity.

You can set the hysteresis width in the Detailed Settings menu. Note that the direction where the hysteresis width is set for the threshold differs depending on whether the area output is ON or OFF.

To perform a Zero Reset:

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

To cancel a Zero Reset:

Simultaneously press the UP and TUNE buttons, or the DOWN and TUNE buttons, for at least 3 seconds. Alternatively, you can use the external zero reset input terminal for 3 seconds or longer.

To lock the buttons:

Simultaneously press the UP and MODE buttons, or the DOWN and MODE buttons, for at least 3 seconds. The display will show [LoC]. This disables button operations in Measurement mode. A key lock state is retained after power is turned OFF and ON.

To unlock the buttons:

Simultaneously press the UP and MODE buttons, or the DOWN and MODE buttons, for at least 3 seconds.

To enter the Menu Setting mode, hold the MODE button for at least 3 seconds. Pressing the MODE button from an item setting moves to the next item menu. All settings are common to CH1 and CH2. If the key lock is engaged, the setting mode cannot be entered.

The available settings are:

1. Output Polarity [PoL]: Selects the output polarity (ON/OFF) for detection.

• [no] (Normally-open): Output terminal opens when the Sensor output is OFF.
• [nC] (Normally-closed): Output terminal closes when the Sensor output is OFF.

2. Tuning Type [tunE]: Selects the tuning method.

• [tiME]: Type discrimination by time.
• [2PtS]: 2-point tuning.
• [oFF-t]: Tuning mode without workpiece.
• [1Pt]: 1-point tuning.

3. Response Time [SPd]: Sets the response time.

• [Stnd]: Standard mode: 50 ms.
• [HS]: High-speed mode: 10 ms.
• [SHS]: Super high-speed mode: 1.5 ms.

4. Keep Function [kEEP]: Sets the output content at a measurement error.

• [oFF]: Both outputs OFF. Monitor output sends clamp value (22 mA).
• [on]: Outputs the immediately previous value when distance detection is judged to be impossible.

5. Scaling Function [SCAL]: Configures the range of analog outputs for measured values.

• [Stnd]: Standard setting.
• [USEr]: User setting to arbitrarily set a measurement value corresponding to the 4mA and 20mA outputs.

6. Background Suppression Function [SnArt]:

• [oFF]: Sensitivity is not restricted.
• [on]: Post-tuning measured value and sensitivity are restricted according to the sensitivity in tuning.

7. Hysteresis width [HyS]: Sets a hysteresis width.

• [Stnd]: Standard setting, initial value based on model.
• [USEr]: User setting, to set an arbitrary hysteresis width.

8. Timer Function [tiMEr]: Specifies the timer operation time (0 to 9999 msec).

• [toFF]: Timer function is not used.
• [oFFd]: Off-delay timer.
• [on-d]: On-delay timer.
• [Shot]: One shot timer.
• [onoFF]: On/Off-delay timer.

9. Area Output [ArEA]: Specifies if the area output function is used.

• [oFF]: Area output is not used.
• [on]: Area output is used. The output turns ON when the measured value enters the Threshold L to Threshold H range.

10. Zero Reset Memory [Sr]: Sets whether the measured value at zero reset is held after power is turned OFF.

• [oFF]: Zero reset memory disabled.
• [on]: Zero reset memory enabled.

11. Eco Function [Eco]: Use to save power consumption.

• [oFF]: Eco function disabled.
• [on]: Eco function enabled. The digital display turns OFF if no operation is performed for 30 seconds.

12. Setting Reset [rSEt]: Resets all settings to factory defaults.

• [no.P]: Setting reset cancel.
• [YES.P]: Press the MODE button while this is shown to execute the setting reset.

A minute step can be judged by lowering the hysteresis width. However, note that the reflection output may become unstable when the reflection light intensity is low.