BOS 21M-_ _ _-_ _ _ _-S4
Photoelectric Sensors
Diffuse, retro-reflective and through-beam sensors
7
english
www.balluff.com
Optical
Function principle
BOS 21M-PAI-RD30-S4
Diffuse sensor
BOS 21M-PAI-PR30-S4
Retro-reflective
BOS 21M-XI-RS31-S4
Through-beam (emitter)
BOS 21M-PAI-RE30-S4
Through-beam (receiver)
Detection range s
d
BOS 21M-PAI-RD30-S4
10…1000 mm
BOS 21M-PAI-PR30-S4
0…10 m
BOS 21M-XI-RS31-S4
0…20 m
BOS 21M-PAI-RE30-S4
0…20 m
Light type
Red light
Wavelength
λ
650 nm
Light spot diameter
see graphs
Reference material
Diffuse sensor
White, 90 % remission,
200 × 200 mm²
Retro-reflective
BOS R– 1
Switching hysteresis
< 10 % (typ.)
Mechanical
Connection type
M12 male, 4-pin
Housing material
primary
Zinc
secondary
Plastic
Sensing surface material
PMMA
Housing dimensions
51.1 mm × 42.7 mm
× 15.4 mm
Environmental conditions
Ambient temperature
1)
–25…+60 °C
Degree of protection as per
IEC 60529
IP67, IP69K
Ambient light
≤ 10 kLux
Electrical
Operating voltage
SIO mode
10…30 V DC
IO-Link mode
18…30 V DC
Rated operating voltage U
e
24 V DC
Residual Ripple (% of U
e
)
≤ 10%
No-load current I
0
at U
e
≤ 35 mA
Rated operational current I
e
for
switching output
2)
100 mA
Load capacitance at U
e
2)
≤ 0.2 µF
Voltage drop U
d
at I
e
≤ 2 V
Time delay before availability
2)
200 ms
Turn-on delay t
on
2)
0.5 ms
Turn-off delay t
off
2)
0.5 ms
Switching frequency f
max
(at U
e
)
2)
1 kHz
Switching output
2)
BOS 21M-PAI-RD30-S4
PNP
BOS 21M-PAI-PR30-S4
PNP
BOS 21M-PAI-RE30-S4
PNP
Switching logic
2)
Normally open
– normally closed,
pins 4 – 2
Short circuit protection
2)
yes
Polarity reversal protected
yes
Protection class
2
IO-Link
Vendor ID
0x0378 (888)
Device ID
BOS 21M-PAI-RD30-S4
0x040716 (263958)
BOS 21M-PAI-PR30-S4
0x040717 (263959)
BOS 21M-XI-RS31-S4
0x040719 (263961)
BOS 21M-PAI-RE30-S4
0x040718 (263960)
IO-Link version
V1.1
Transfer rate
38.4 kbps (COM2)
Minimum cycle time
4.0 ms
Operating voltage
18…30 V DC
1)
For UL: Ambient temperature ≤ +55 °C
2)
Not relevant to BOS 21M-XI-RS31-S4
Technical data
No. 944157-726 EN · 01.V
orserie · A20; subject to modification. Replaces G19.
