Datasheet

FIBER
SENSORS
LASER
SENSORS
PHOTO-
ELECTRIC
SENSORS
MICRO
PHOTO-
ELECTRIC
SENSORS
AREA
SENSORS
SAFETY
COMPONENTS
PRESSURE
SENSORS
INDUCTIVE
PROXIMITY
SENSORS
PARTICULAR
USE
SENSORS
SENSOR
OPTIONS
WIRE-
SAVING
SYSTEMS
MEASURE-
MENT
SENSORS
STATIC
CONTROL
DEVICES
LASER
MARKERS
Selection
Guide
PM-24
PM-64
PM-44/54
U-shaped
Convergent
Reflective
PM2
PM-24
423
Ultra-small U-shaped Micro Photoelectric Sensor PM-24 SERIES
MICRO
PHOTO-
ELECTRIC
SENSORS
U-shaped
PRECAUTIONS FOR PROPER USE
Refer to p.986~ for general precautions.
Cable extension
Cable extension is possible up to an overall length of
100 m 328.084 ft with a 0.3 mm
2
, or more, cable.
However, since a voltage drop shall occur due to the cable
extension, ensure that the power supply voltage at the end
of the cable attached to the sensor is within the rating.
•
5 to 24 V DC
± 10 %
+
–
Total cable length 100 m 328.084 ft
Supply voltage: 4.5 V or more
Cable attached
to sensor
+V
Output
0 V
Extension cable
But, when the overall cable length, including the cable
attached to the sensor, is as given below, there is no
need to conrm the voltage.
Conductor cross-
section area of
extension cable
Total cable length
0.08 to 0.1 mm
2
Up to 5 m 16.404 ft
0.2 mm
2
Up to 10 m 32.808 ft
0.3 mm
2
Up to 20 m 65.617 ft
Others
Since the sensor is intended for
use inside machines, no special
countermeasures have been taken
against extraneous light. Take care that
extraneous light is not directly incident
on the beam receiving section.
Do not use during the initial transient time (50 ms) after
the power supply is switched on.
The cable of PM-□24-R is a exible cable usable on a
moving base. When the sensor is mounted on a moving
base, x the sensor cable joint so that stress is not
applied to it. (Models other than the PM-□24-R cannot be
used on a moving base.)
Take care that the exibility of the PM-□24-R cable is lost
if the ambient temperature is –10 °C +14 °F or less.
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Mounting
When xing the sensor with screws, use M2 screws and
the tightening torque should be 0.15 N·m or less.
Further, use small, round type plain washers. (ø4.3 mm
ø0.169 in)
When using the optional mounting screw set MS-M2, a
spring washer is included.
•
M2 screws
Plain washer
Outer diameter
ø4.3 mm
ø0.169 in
Spring washer
In case PM-□24(-R) is used at an ambient temperature
of +50 °C +122 °F, or more, make sure to mount it on a
metal body.
•
Make sure to connect terminals correctly as
the sensor does not incorporate a reverse
polarity protection circuit.
Further, the output is not incorporated with a
short-circuit protection circuit. Do not connect
it directly to a power supply or a capacitive
load. Faulty wiring may result in damage.
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.
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