Long Range & Wide Area Photoelectric Sensor PX-2

All models

• Installation of a touch bumper

You are requested to always install a touch bumper when this product is used on an automatic guided vehicle (AGV).

• Use outside Japan

This sensor conforms to the EMC Directive (CE Marking) and EMC Regulations (UKCA Marking). However, it is not certified by a competent body in accordance with other country safety standards. Since each country has its regulations, please follow the local and national regulations of the country where this sensor is used.

• Fail-safe measures

This sensor is meant for proximity detection and does not possess control functions for safety maintenance. If fail-safe measures are required, consider their incorporation in the total system. Further, do not connect the sensor output directly to a stopping mechanism (brake).

• Periodical maintenance check

The person in charge must periodically confirm the performance of the product and maintain a record of such checks. In addition, whenever the operating environment of the product is changed due to system modification, etc., performance check must be done.

・	The tightening torque for the main sensor should be 1.2 N·m or less.

・ The tightening torque for PX-SB1 (auxiliary sensor) should be 0.8 N·m or less.

・ Mount the sensor, horizontally, at least 300 mm 11.811 in above the floor, to avoid reflection from the floor.

・	In case several sensors are used at the same place, take care that the number of sensors from which beams may be simultaneously incident is 25 sensors or less.

• When the sleep input is made Low, the sensor goes into the sleep state and the operation can be stopped.

• Do not use during the initial transient time (0.7 sec.) after the power supply is switched on.
• Take care that an initial rush current (1.5 A approx. at 10 V DC and 5 A approx. at 31 V DC) will flow when the power supply is switched on.

PX-22 PX-21 PX-24 PX-24ES PX-23ES

L: Low (0 to 1V), H: High (4.5 to 31V, or open)

Note: Response time of area the selection input is 80 ms.

PX-24 PX-24ES PX-23ES PX-26

• The sensitivity can be adjusted, within the range set by the manual sensitivity adjuster, by an analog voltage (0 to +5 V) applied to the external sensitivity adjustment input. The sensitivity varies with the magnitude of the applied voltage.

• If the sensor receives modulated light other than its own (including auxiliary sensor’s) light, the extraneous light monitor output turns ON. The operation of the extraneous light monitor output has absolutely no affect on sensing. It is useful for recognizing presence of other sensors near this sensor in case of intersecting AGV paths, etc.

Note: The extraneous light monitor output is not incorporated with a short-circuit protection circuit. Do not connect it directly to a power supply or a capacitive load.

PX-SB1

• Aux area can be selected by aux area ineffective input of the main sensor.

L: Low (0 to 1 V), H: High (4.5 to 31 V or open)

Note: Aux area disable input has nothing to do with the external control function selection switch of the main sensor.

• Sensitivity adjustment of PX-SB1 is performed with the emitter volume. If sensitivity cannot be set to close range even after adjusting the emitter volume, then an aux sensor might be receiving the light from the main sensor. If that is the case, adjust sensitivity with the emitter volume and the receiver volume. For details, see the instruction manual that comes with the product.

• Connect the main sensor connector attached cable to the aux sensor connector attached cable.
• The spiral lead wire side of the main sensor connector attached cable is the left aux sensor side.