Leuze electronic AKS 171.2 User manual

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone]
[email protected] • www.leuze.com
We reserve the right to make changes • PAL_AKS171_2_en_50140931.fm
Gapless detection of the smallest parts
through automatic adjustment in the range
of 60 mm (in front of transmitter)
4-step switch for adaptation to the size of the
ejected goods (receiver)
Optimum adaptation of the transmitting
power by means of an infinitely adjustable
potentiometer (transmitter)
Exact, time-saving alignment though indica-
tor LEDs – bar graph – and variation of the
transmitting power
Static and dynamic monitoring in the range
between 300 … 1700 mm
Static detection of parts that were left
behind
Warning output if reception signal is too low
Compact design in metal construction.
300 … 1700 mm
IP 54
Accessories:
(available separately)
Cables with M12 connector (KD …)
Dimensioned drawing
AReceiver: 4-step switch (adaptation to the thickness of the parts)
BLEDs
CProtection cap for receiver, screw type
Electrical connection
Transmitter Receiver
AKS 171.2 Ejection monitoring
AKS 171.2… - 01
en 01-2018/11 50140931

AKS 171.2… - 01 2018/11
Technical data
Optical data
Operating ranges 1)
1) Operating range: recommended range with function reserve
300 … 1700mm (distance transmitter-receiver)
Detection range Distance x 54 mm (height)
Smallest detectable part Ø 10 x 0.5 mm, dynamic
Ø 15 x 0.5 mm, static
Object detection
Distance transmitter/receiver Maximum 1700 mm in the range 300 … 1700 mm
Minimum 300 mm, dependent on the object size
Transmitter
Adaptation of the transmitting power as a
function of the transmitter/receiver distance
With infinitely adjustable potentiometer (under screw
cap)
Light beam propagation Divergent band
Light-band width Approx. 20 mm at 1 m
Transmitting components 5 LEDs
Pulse frequency 10 kHz
Wavelength 880 nm
Optics Cylindrical lens 60 x 15 mm
Receiver
Optics Cylindrical lens 60 x 15 mm
Wavelength 880 nm
Receiving components 22 pin photodiodes
Switch, red Presetting of the object size
Position 1: 2 - 3 mm
Position 2: 1.5 - 2 mm
Position 3: 1 - 1.5 mm
Position 4: 0.5 - 1 mm
Smallest detectable part Ø 10 x 0.5 mm
Time behavior
Detection speed 0 (static) to 3 m/s (dynamic)
Pulse stretching on ejection (output Q) Approx. 150 ms (see diagram)
Response delay for parts that were left behind
(output Q)
Approx. 50 ms (see dia-
gram)
Readiness delay 100 ms
Switching frequency 5Hz
Response delay Warning output:500 ms
Dark pulse: 5ms
Electrical data
Operating voltage UB24 V DC ± 15%
Residual ripple 15% of UB
Current consumption, max. Transmitter: 60 mA Receiver: 60 mA
Outputs Warning output QW:PNP
Switching output Q: PNP, dark switching
Output current Max. 100 mA per output
Indicators
Transmitter
Green LED Ready
Yellow LED Transmitter activated
Receiver
Yellow LED Output Q
Red LED Output QWcontinuous light with reserve,
flashing without reserve
Mechanical data
Housing Aluminum, black anodized
Optics Glass
Weight 400 g
Connection type M12 connector
Environmental data
Ambient temp. (operation/storage) -20°C … +40°C / -30°C … +70°C
Protective circuit 2)
2) 1=transient protection, 2=polarity reversal protection, 3=short circuit protection for all outputs
1, 2, 3
VDE protection class III
Degree of protection IP 54
Light source Exempt group (in acc. with EN 62471)
Standards applied IEC 60947-5-2
Additional function
Activation input inactive
Transmitter inactive/active 8 V / 2 V or not connected
Activation/disable delay 0.5 ms
SYNC Not connected
Diagrams
AOutput Q
BEjection part, dynamic
CStatic part left behind
A
B
C
Notes
The preferred direction for
the gapless detection of
parts that have been left
behind is perpendicular to
the lens-edge shift angle
30°
Observe intended use!
This product is not a safety sensor
and is not intended as personnel
protection.
The product may only be put into
operation by competent persons.
Only use the product in accor-
dance with its intended use.
AKS 171.2

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] AKS 171.2… - 01
[email protected] • www.leuze.com
Order guide
Alignment - Setting
Device overview
The AKS 171.2 sensor system is a fast, high-resolution light curtain consisting of transmitter and receiver:
Designation Part no.
Transmitter unit AKS 171.2/4.5.1SE-S12 50138388
Receiver unit (with protection cap, 15 mm deep) AKS 171.2/4.5.1E-S12 50138389
Set consisting of transmitter (50138388) and receiver (50138389) SET AKS 171.2/4.5.1-S12 50140950
Note!
Prerequisite for optimum function of the system is the proper alignment and adjustment of transmitter and receiver as
described in the following. A poorly adjusted system functions poorly!
AKS 171.2 transmitter AKS 171.2 receiver
(with mounted protection cap, 15 mm deep)
AKS 171.2 Ejection monitoring

AKS 171.2… - 01 2018/11
Indicators and operational controls
The following display and operating elements are relevant for the alignment and adjustment procedure:
AKS 171.2 transmitter
①
②
③
③
①Green LED - ready
②Yellow LED - transmitter active
③Adjustment potentiometer
(potentiometer cover removed)
AKS 171.2 receiver
⑤
⑥
④
④
Red LED - Reception signal
3 states:
-Off: no reception signal
-Flashing: weak reception signal
-On: good reception signal
⑤
Yellow LED – switching output state
2 states:
-On: active
-Off: inactive
⑥
Rotary switch - Object size
4 positions:
-4: object size 0.5 … 1.0mm
-3: object size 1.0 … 1.5mm
-2: object size 1.5 … 2.0mm
-1: object size 2.0 … 3.0mm
Rear side
Optics side
⑦
⑧
⑦
3 yellow LEDs - Alignment display
4 states:
-3 LEDs on good reception signal
-2 LEDs on moderate reception signal
-1 LED on weak reception signal
-0 LEDs on very weak or no reception signal
⑧
Red LED - Illumination indicator
2 states:
-On: uneven illumination
-Off: even illumination (rest state)
AKS 171.2

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] AKS 171.2… - 01
[email protected] • www.leuze.com
Mounting / exchange
Removal / exchange
When replacing defective devices, the photoelectric sensors should be replaced in pairs (transmitter + receiver) for optimum func-
tion. Any previously present AKS171 or AKS171.1 systems can be converted to the AKS171.2 without problem.
1.Remove cable plug on transmitter and receiver.
2.Mechanically dismount transmitter + receiver, noting on which side the transmitter and receiver are mounted while doing so.
Mounting
1.Screw sensors to the machine with the same orientation (e.g., each connector plug facing downward and at the same height
(flush)).
2.The distance between chute edge and the middle of the light-band (lens middle) should be approx. 20 mm (reference value,
dependent on external conditions such as glossy objects, etc.) 1).
3.The holder or frame that holds the holder must be sufficiently sturdy 2).
4.Reflective surfaces that are parallel to the light-band should be avoided.
5.The upper edge of the chute must be located within the detection range of the sensor (light-band) (lower edges of the lens below
the upper edge of the chute). 3)
6.Electrically connect transmitter and receiver. Mount cable plugs and tighten coupling rings.
Note the different wiring of transmitter and receiver.
Preparations
First, transmitter and receiver must be roughly aligned by sight, with the optics facing one another. The rotary axes mentioned in
the following description are defined as follows (using the example of the transmitter, receiver accordingly):
1) An insufficient distance to the chute or other objects may, due to reflections, make it impossible for the the sensor to be correctly aligned in the next step or for
small parts to be reliably detected later on. A distance that is too large increases the probability that slowly incoming parts will fall between the ramp edge and
the sensor detection range.
2) Prerequisite for proper function is that the transmitter and receiver cannot move relative to one another, even in the event of strong physical shocks.
3) If a sensor is mounted too high, the objects that are to be detected may fall below the detection range; if a sensor is mounted too low, parts could jump out of
the detection range.
Ⓓ
Ⓒ
Ⓑ
Ⓐ
ⒶChute
ⒷIR light-band (invisible)
ⒸLower edge of chute
ⒹFlush
ⒶRotation about the X-axis
ⒷRotation about the Y-axis
ⒸRotation about the Z-axis
Ⓒ
Ⓑ
Ⓐ
AKS 171.2 Ejection monitoring