OMRON ZX laser sensor maintenance

Excessive ambient light (incandescent lamps below 3000lx are allowed, but high brightness halogen lamps may interfere).

Sensor head vibration or rapid temperature changes.

The linear output is not grounded with shielding, or the shielding wire is erroneously short circuited to 0V.

handle:

Use a line beam sensor (L model) to average the reflection difference.

Adjust the installation angle to avoid mirror reflection light returning to the receiver.

Increase the average frequency.

Confirm that the linear output ground (shielded wire) is grounded separately and not mixed with other 0V.

Use the interference suppression function of ZX-CAL2.

5.3 Misdetection of Shooting Sensors

Reason:

There are more than one object or unclear edges within the measurement width.

The transmitter and receiver are not aligned.

Camera contamination.

handle:

Use the teaching function to set appropriate thresholds.

Adjust the alignment bracket of the transmitting/receiving end and use the optical axis alignment function (light intensity display on the amplifier).

Clean the lens (see cleaning methods later).

5.4 Excessive temperature drift

The temperature characteristics of ZX series: Reflective type is ± 0.03% FS/° C (LD300/LD300L is ± 0.1% FS/° C). If the temperature change on site exceeds 10 ° C, significant errors may occur. Solution:

Perform zero temperature compensation (by setting the zero memory function through an amplifier and resetting it to zero after temperature changes).

Install the sensor in a constant temperature environment or use a heat shield.

Choose models with better temperature characteristics (such as LD30V).

5.5 Laser LED does not light up

Reason: The laser OFF input is activated (green line low level), or the laser is aging and damaged.

Inspection: Measure the voltage of the green wire to 0V. If it is at a low level (<1.5V), the laser will be turned off by an external signal. Open it or connect it to a high level. If it still doesn't light up, return for repair.

Maintenance and Cleaning

6.1 Lens Cleaning

If the front lens of the sensor head is contaminated with dust or oil, it will cause a decrease in the measured light intensity. Prohibit the use of organic solvents such as thinner, benzene, acetone, kerosene, etc. Correct steps:

Use a balloon (for camera lenses) to blow away large particles of dust, do not blow with your mouth (saliva corrodes lenses).

Dip a soft lens cloth in a small amount of alcohol and gently wipe it. Do not rub forcefully to avoid scratching the coating.

6.2 Battery and Storage

There is no battery inside the amplifier unit. The sensor head has no vulnerable parts. Long term storage should be in a dry, non corrosive gas environment.

6.3 Firmware Version Compatibility

When using the ZX-SF11 communication interface unit, the amplifier version must meet the following requirements: ZX-LDA11-N Ver.2.100 or above, ZX-EDA11 Ver.1.100 or above, ZX-TDA11 Ver.1.000 or above. Old versions may not be recognized. The version can be viewed through the Smart Monitor software.

Suggestions for replacing discontinued models

Some early models of the ZX series have been discontinued (such as the ZX-LD30V/VL, which can still be purchased, but the ZX-LT001/005/010/030 opposed models may be replaced by new models). Attention when replacing:

Maintain consistent or higher measurement range and resolution.

Replace the positive and negative reflection type with the same type (ZX-LD30V → ZX-LD30V subsequent models).

The amplifier unit ZX-LDA11-N/41-N can still be purchased, but if discontinued, the ZX-EDA series can be selected (compatibility needs to be confirmed).

The computing unit ZX-CAL2 and communication interface ZX-SF11 are still the current products.

If the sensor head is damaged but the amplifier is intact, the same model of sensor head can be directly replaced without reconfiguring the parameters (which are stored in the amplifier).