Panasonic PX-21 Instruction Manual

Obstacle Detection Sensor PX-2 Series
Thank you very much for purchasing Panasonic products. Please read this
Instruction Manual carefully and thoroughly for the correct and optimum
use of this product. Kindly keep this manual in a convenient place for quick
reference.
Hazard Indications
WARNING
In this Instruction Manual,
pending upon the level of danger. Please observe them strictly for the
safe use of this sensor.
WARNING
If you ignore the advice with this mark, death or serious injury could result.
CAUTION
If you ignore the advice with this mark, injury or material damage could re-
sult.
WARNING
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).
CAUTION
Use outside Japan
This sensor conforms to the EMC directive. 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 na-
tional regulations of the country where this sensor is used.
CAUTION
Fail-safe measures
This sensor is meant for proximity detection and does not possess con-
trol functions for safety maintenance.
If fail-safe measures are required, consider their incorporation in the to-
tal system.
Further, do not connect the sensor output directly to a stopping mecha-
nism (brake).
CAUTION
Periodical maintenance check
The person incharge 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.
INSTRUCTION MANUAL
MJE-PX2 No.0034-73V
CAUTION
and are indicated de-
1

SPECIFICATIONS

Standard model
Type
Short sensing range
Item Model No. PX-22
Sensing range (Note 1)
3m
(OUT 1 and OUT 2 areas)
Hysteresis
Supply voltage
Power consumption Under operation: 1.5W or less, Under sleep condition: 0.3W or less
(Note 2) (without auxiliary sensor)
OUT 1
OR circuit among the ef-
fective center, left, right,
NPN open-collector transistor
adjacent left / right OUT
Maximum sink current: 100mA
1 areas and the effective
Applied voltage: 40V DC or less (between OUT 1 / OUT 2 and 0V)
auxiliary left / right areas
Residual voltage: 1.5V or less (at 100mA sink current)
OUT 2
OR circuit among the
effective center, left,
and right OUT 2 areas
Selectable either Light-ON or Dark-ON with a switch (Output operation of
Output operation
OUT 1 and OUT 2 is the same.)
Short-circuit protection
Extraneous light
monitor output
Output operation
Short-circuit protection
Response time
Right OUT 1 auxili-
ary area cancel input
Left OUT 1 auxiliary
area cancel input
Connected to 0 to +1V or GND (0V): Sleep condition
Sleep input
Connected to (supply voltage - 1V) to 31V, or open: Operational condition
External sensitivity
adjustment input
OUT 1 area operation indicator Red LED (lights up when the beam is received in the effective OUT 1 areas)
OUT 2 area operation indicator Yellow LED (lights up when the beam is received in the effective OUT 2 areas)
Continuously variable adjusters (OUT 1, adjacent right OUT 1, adjacent
Sensitivity adjuster
left OUT 1 and OUT 2 areas are adjusted independently.)
Four sensing areas are selectable
Sensing area
with dip switches.
Automatic interference
Optical interference from up to 25 units is prevented.
prevention function
Protection
Ambient temperature -10 to +55 (No dew condensation or icing allowed), Storage: -20 to +70
Ambient humidity
Emitting element
Material Enclosure: ABS, Lens: Acrylic, Cover: Polycarbonate
2
0.3mm 5-core cabtyre
Cable
cable, 0.5m long
(for input and output)
Weight 170g approx.
MS-PX-2 (Main sensor mounting bracket): 1 set, Adjusting screwdriver: 1 pc.
Accessories
Matrix chart for sensing areas and external inputs 1 sheet (PX-24ES and PX-23ES only)
Notes: 1) The sensing range is specified for white non-glossy paper (300 300mm).
2) Obtain the current consumption by the following calculation.
Current consumption = Power consumption
(e.g.) When the supply voltage is 12V, the current consumption (operating condition) is:
1.5W 12V = 0.125A = 125mA
2 MOUNTING
The tightening torque should be
1.2N m or less.
<On main sensor mounting bracket (MS-PX-2)>
Mount the sensor, horizontally, at least 300mm
above the floor, to avoid reflection from the floor.
Auxiliary sensor connectable model
With external control function
Short sensing range
PX-21 PX-24 PX-24ES PX-23ES
1m 3m 1m
15% or less of operation distance
10 to 31V DC including ripple
0.4V or less (at 16mA sink current)
Incorporated
NPN open-collector transistor
Maximum sink current: 100mA
Applied voltage: 40V DC or less
(between extraneous light monitor output and 0V)
Residual voltage: 1.5V or less (at 100mA sink current)
0.4V or less (at 16mA sink current)
ON when modulated beam other than its own
(including auxiliary sensor's light is received
80ms or less
Connected to 0 to +1V or GND (0V):
Auxiliary area ineffective
Connected to 4.5 to 31V, or open:
Auxiliary area effective
Sensitivity of all areas (except auxiliary area
changes simultaneously in response to the
external analog voltage input (0 to +5V)
Four sensing areas are
selectable with
switches, and eight sens-
ing areas are selectable
with external inputs.
IP65 (IEC)
35 to 85% RH, Storage: 35 to 85% RH
Infrared LED (modulated)
For input and output:
2
0.18mm 9-core (PX-24ES and PX-23ES: 12-
core) cabtyre cable, 0.5m long
For auxiliary sensor connection:
2
0.18mm 10-core connector attached cabtyre
cable, 0.5m long
210g approx. 220g approx.
Supply voltage
M4 screw with washers
(Please arrange separately)
M4 (length 8mm)
screw with washers
Main sensor mounting bracket
(MS-PX-2) (Accessory)
300mm or more
Long sensing
range
PX-26
5m
dip
Fixed
210g approx.