Compact DC Optical Fibre
Photoelectric Switches
PF
Miniature 6 0 x3 1 x1 1 mm optical fibre photoelectric
switches for remote sensing in confined spaces or
detection of small objects
■
■
■
■
■
■
■
■
■
■
■
■
■
Diffuse and separate (through-beam) models
Red light emission models for most applications
Green light to detect red marks on white backgrounds
Coarse and fine sensitivity adjustments
Light received and stability LEDs
Fast response time – 1ms
Switch selection of light on/ dark on (NO/ NC) output
Protection up to IP66
Fine tube types can be bent for positioning
Fibres may be cut to suit applications
Logic output (NPN models)
Self-diagnostic (alarm) output models with off-delay timer
Short-circuit protection
Year
Guarantee
Options and ordering codes
P F
A
–
N
T
G
Compact optical fibre
photoelectric switches
PRICE
—
G
Red light emission
P F
A
INFORMATION
AND ORDERING
Green light
emission
Amplifier
Without timer and
diagnostic output
—
T
NPN output type
PNP output type
N
P
With timer and
diagnostic output
Specifications
Type
Photoelectric switch
Photoelectric switch with timer and self-diagnosis
Models
PFA-N
red
PFA-NG
green
PFA-P
red
PFA-PG
green
PFA-NT
red
PFA-NTG
green
PFA-PT
red
PFA-PTG
green
Emission
Supply voltage
Max. consumption
Response time
Output type
Output state
Load cur rent
Logic output
10-30VDC including peak ripple
≤50mA
≤1ms operation/ reset
≤1ms operation, 30 to 70ms reset
NPN
PNP
NPN
PNP
light on/ dark on (NO/ NC) selectable by switch
100mA
1.5mA
–
1.5mA
–
Self-diagnostic output current
Residual output voltage
Connection cable
–
50mA
1.1V IL=100mA
2 metres long, 3-wire
2 metres long, 4-wire
Electrical protections
LED status indicators
Sensitivity adjustment
Insulation resistance
Dielectric strength
Housing material
against short circuit (autoreset) - polarity reversal - inductive loads
light received - red LED (light), stability - green LED (stab.)
coarse - 1 turn trimmer (sens.), fine - 1 turn trimmer (fine)
> 20 MOhm to 500 VDC
1000VAC 50/ 60Hz for 1 min
ABS
IEC IP66(1)
-25˚C +55˚C (avoid ice on amplifier)(2)
P rotection degree
Operating temperature
Storage temperature
Inter ference by ar tificial light
Inter ference by sunlight
Ambient humidity
Vibration
-40˚ +70˚C
3000 lux
10000 lux
35-85% r.h. operating, 35-95% r.h. storage
10 to 55 Hz, 1.5mm double amplitude (x, y, z direction, respectively 2 hours)
500m/ s2 (approx. 50G) 3 times each in X, Y and Z directions
100g
Shock
Weight (approx.)
(1)
Protection is IP50 when amplifier is used with fibres P2F-DF or P2F-SF. (2) Operating temperature range is -25˚C to +50˚C when amplifiers are mounted close together
e.g. on DIN rail.