Business > Industrial Devices > Automation Controls Top > FA Sensors & Components > Sensors > Micro Photoelectric Sensors > Convergent Reflective Micro Photoelectric Sensor PM2 > Cautions For Use

Convergent Reflective Micro Photoelectric Sensor PM2

Lineup
CAD data　 Catalogs　 Manuals　 Software
FAQ

Sensing characteristics

Cautions For Use

All models

Never use this product as a sensing device for personnel protection.
In case of using sensing devices for personnel protection, use products which meet laws and standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in each region or country.

Mounting

When fixing the sensor with screws, use M3 screws and the tightening torque should be 0.49 N·m or less.
Further, use small, round type plain washers (ø6 mm ø0.236 in).

Others

Do not use during the initial transient time (50 ms) after the power supply is switched on.
Take care that the product does not come in direct contact with oil, grease, or organic solvents, such as, thinner, etc.

Wiring

Make sure to connect terminals correctly as the sensor does not incorporate a reverse polarity protection circuit.
If the sensor is being used in a noisy environment, examine the extent of noise. Further, if equipment, such as motor, solenoid or electromagnetic valve, which generates a large surge, is present near the sensor, connect a surge absorber to the equipment.

Setting

The optimum setting distance (distance to convergent point) is 5 mm 0.197 in.
The sensor is not affected even by a specular background if it is located 30 mm 1.181 in, or more, away from the sensor.

(However, the specular background should be a plane　surface, directly facing the sensor. A spherical or curved　background may be detected.)

Connector type

Cautions in plugging or unplugging a connector

Do not plug or unplug a connector more than 10 times.
Be sure not to give stress more than 5 N to a terminal of both a connector and a sensor.
If you do not follow the above cautions, it will cause a poor contact.

Procedures of plugging or unplugging a connector

(1)Insert a connector straight into a sensor until the connector lug is locked by the sensor hook.

(2)When unplugging, give as much stress as a connector lug can be relieved from a hook. Then unplug it.

Caution: Be sure to hold a connector when plugging or unplugging it. Do not hold a terminal or a cable when plugging or unplugging the connector. Otherwise, it will cause a poor contact.

Soldering (Both connector CN-13 and sensor)

If soldering is done directly on the terminals, strictly adhere to the conditions given below.

Soldering temperature	260 ℃ 500 ℉ or less
Soldering time	10 sec. or less
Soldering position	Refer to the below figure

Wiring

The cable length must be 2 m 6.562 ft, or less, with 0.3 mm², or more, cable. If the cable is extended for more than 2 m 6.562 ft, connect a capacitor of 10 μF approx. between +V and 0 V terminals.