Leuze electronic HTU318 Series 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_HTU318_400_1600_2SWO_en_50135816.fm
Function largely independent of surface
properties, ideal for detection of liquids,
bulk materials, transparent media, …
Small dead zone at long scanning range
Adjustment of the switching point can be
taught
NO/NC function reversible
2 independent switching outputs
(PNP or NPN)
NEW – Both outputs can easily be taught
using a button
NEW – Stable plastic design
NEW – Temperature-compensated
scanning range
50 … 400mm
150 … 1600mm
10 - 30 V
DC
Accessories:
(available separately)
Mounting systems
Mounting adapter M18-M30:
BTX-D18M-D30 (Part no. 50125860)
Cables with M12 connector
(KD …)
IP 67
IEC 60947...
IEC 60947...
Dimensioned drawing
AActive sensor surface
BTeach-in button
CIndicator diodes
Electrical connection
HTU318 Ultrasonic sensors with 2 switching outputs
HTU318-400…-M12 - 01
HTU318-1600…-M12 - 01
en 01-2017/02 50135816

HTU318-400…-M12 - 01 2017/02
HTU318-1600…-M12 - 01
Technical data
Ultrasonic specifications HTU318-400.3/…-M12 HTU318-1600.3/…-M12
Scanning range 1)
1) At 20°C
50 … 400mm 2)
2) Target: 200mm x 200mm plate
150 … 1600mm 2)
Adjustment range 50 … 400mm 150 … 1600mm
Ultrasonic frequency 300kHz 230kHz
Typ. opening angle 8° ± 2° 8° ± 2°
Resolution <2mm <2mm
Direction of beam Axial Axial
Reproducibility ± 0.5% 1) 3)
3) From end value
±0.5%
1) 3)
Switching hysteresis 1% 3) 1%
3)
Temperature drift ≤5% 4)
4) Over the temperature range -20°C … +70°C
≤5% 4)
Timing
Switching frequency 10Hz 2Hz
Response time 500ms 250ms
Readiness delay < 500ms < 500ms
Electrical data
Operating voltage UB 5)
5) For UL applications: use is permitted exclusively in Class 2 circuits according to NEC
10 … 30V DC (incl. ± 7% residual ripple)
Residual ripple ±7% of UB
Open-circuit current ≤50mA
Switching output / Function …/4P… 2 independent PNP transistor switching outputs
OUT 1 (pin 4): NO contact preset
OUT 2 (pin 5): NC contact preset
…/2N… 2 independent NPN transistor switching outputs
OUT 1 (pin 4): NO contact preset
OUT 2 (pin 5): NC contact preset
Output current Max. 100mA
Switching range adjustment 1-point teach: teach-in button 2 … 7s,
2-point teach: teach-in button 7 … 12s
Changeover
NO/NC
Teach-in button > 12s
Indicators
Yellow LED OUT1: object detected
Blue LED OUT2: object detected
Flashing yellow or blue LED Teach-in
Flashing green and yellow/blue LEDs Teaching error
Green LED Object within the scanning range
Mechanical data
Housing Plastic (PBT)
Active surface Epoxy resin, glass fiber reinforced
Weight 70g
Ultrasonic transducer Piezoceramic 6)
6) The ceramic material of the ultrasonic transducer contains lead zirconium titanate (PZT)
Connection type M12 connector, 5-pin
Fitting position Any
Environmental data
Ambient temp. (operation/storage) -20° … +70°C/-20° … +70°C
Protective circuit 7)
7) 1=short-circuit and overload protection, 2=polarity reversal protection, 3=wire break and inductive protection
1, 2, 3
VDE protection class III
Degree of protection IP 67
Standards applied EN 60947-5-2
Certifications UL 508, CSA C22.2 No.14-13 5) 8)
8) These proximity switches shall be used with UL Listed Cable assemblies rated 30V, 0.5A min,
in the field installation, or equivalent (categories: CYJV/CYJV7 or PVVA/PVVA7)
Diagrams
HTU318-400.3/…-M12
HTU318-1600.3/…-M12
Notes
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.
-100
-50
0
50
100
0 100 200 300 400 500
y1
y2
Object distance x [mm]
Width y of the sound cone [mm]
Typ. response behavior (plate 200x200mm)
-100
-50
0
50
100
0 100 200 300 400 500
y1
y2
Object distance x [mm]
Width y of the sound cone [mm]
Typ. response behavior (rod Ø 25mm)
y1
y2
-300
-200
0
100
-100
200
300
0 400 800 16001200
Object distance x [mm]
Width y of the sound cone [mm]
Typ. response behavior (plate 200x200mm)
y1
y2
-300
-200
0
100
-100
200
300
0 400 800 16001200
Object distance x [mm]
Width y of the sound cone [mm]
Typ. response behavior (rod Ø 25mm)
Object distance [mm]
Target (fixed):
plate or rod
Sound cone
= f (α,x)
HTU318

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] HTU318-400…-M12 - 01
[email protected] • www.leuze.com HTU318-1600…-M12 - 01
Part number code
Order guide
The sensors listed here are preferred types; current information at www.leuze.com.
HTU318-1600 . 3/4PK-M12
Operating principle
HTU Ultrasonic sensor, scanning principle, with background suppression
DMU Ultrasonic sensor, distance measurement
RKU Ultrasonic sensor, retro-reflective ultrasonic sensor
Series
318 318 series, cylindrical short M18 design
Scanning range in mm
400 50 … 400
1600 150 … 1600
Equipment
.3 Teach button on the sensor
Pin assignment of connector pin 4 / black cable wire (OUT1)
4PNP output, NO contact preset
PPNP output, NC contact preset
2NPN output, NO contact preset
NNPN output, NC contact preset
Pin assignment of connector pin 2 / white cable wire (Analog OUT/OUT2)
4PNP output, NO contact preset
PPNP output, NC contact preset
2NPN output, NO contact preset
NNPN output, NC contact preset
CAnalog output 4 … 20mA
VAnalog output 0 … 10V
Pin assignment of connector pin 5 / gray cable wire (Sync / MUX)
KSynchronization/multiplex input
Connection technology
M12 M12 connector, 5-pin
Designation Part no.
Scanning range / switching output / teach-in
50 … 400mm / 2 x PNP / teach button HTU318-400.3/4PK-M12 50136082
50 … 400mm / 2 x NPN / teach button HTU318-400.3/2NK-M12 50136083
150 … 1600mm / 2 x PNP / teach button HTU318-1600.3/4PK-M12 50136088
150 … 1600mm / 2 x NPN / teach button HTU318-1600.3/2NK-M12 50136089
HTU318 Ultrasonic sensors with 2 switching outputs

HTU318-400…-M12 - 01 2017/02
HTU318-1600…-M12 - 01
Device functions and indicators
All settings on the sensor are taught-in via the teach button. Device status and switching states are indicated as follows by means of
3 LEDs:
Switching behavior
Note!
The switching behavior is not defined in the dead zone.
Switching behavior with 2-point window-teach as a function of the switching function
1-point teach (1 switching point per output)
Switching behavior NO contact Switching behavior NC contact
2-point window-teach (2 switching points per output)
Switching behavior NO contact Switching behavior NC contact
Switching function
configured as
First taught object
distance
Second taught object
distance Output switching behavior
NO (normally open)
Close Far
Far Close
NC (normally closed)
Close Far
Far Close
Dead zone
Sensor
OUT active
Yellow/blue LED ON
Green LED OFF
OUT not active
Yellow/blue LED OFF
Green LED ON
Distance
Hysteresis
Switching point
Scanning range
OUT not active
Yellow/blue LED OFF
Green LED OFF
OUT not active
Yellow/blue LED OFF
Green LED OFF
Dead zone
Sensor
OUT not active
Yellow/blue LED OFF
Green LED ON
OUT active
Yellow/blue LED ON
Green LED OFF
Distance
Hysteresis
Switching point
Scanning range
OUT active
Yellow/blue LED ON
Green LED OFF
OUT active
Yellow/blue LED ON
Green LED OFF
Dead zone
Sensor
OUT active
Yellow/blue LED ON
Green LED OFF
OUT not active
Yellow/blue LED OFF
Green LED ON
Distance
Hysteresis
Scanning range
OUT not active
Yellow/blue LED OFF
Green LED OFF
OUT not active
Yellow/blue LED OFF
Green LED OFF
Hysteresis
OUT not active
Yellow/blue LED OFF
Green LED ON
Switching point 1 Switching
point 2
Dead zone
Sensor
OUT active
Yellow/blue LED ON
Green LED OFF
OUT not active
Yellow/blue LED OFF
Green LED ON
Distance
Hysteresis
Scanning range
OUT active
Yellow/blue LED ON
Green LED OFF
OUT active
Yellow/blue LED ON
Green LED OFF
Hysteresis
Switching point 1 Switching
point 2
OUT active
Yellow/blue LED ON
Green LED OFF
HTU318

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] HTU318-400…-M12 - 01
[email protected] • www.leuze.com HTU318-1600…-M12 - 01
Adjusting the switching points via the teach button
The switching points of the sensor for both outputs are set to 400mm or 1600mm (static 1-point teach) on delivery.
By means of a simple operating procedure, the switching points for each output can be individually taught to an arbitrary distance within
the scanning range with 1-point teach (static) or 2-point window-teach (static).
Moreover, the output function can be switched from NO contact (NO - normally open) to NC contact (NC - normally closed). An LED is
permanently assigned to each output for the setting.
Selecting the output that is to be taught: OUT1 or OUT2
1.Press the teach button for ≥2sto activate teach mode. The yellow LED (OUT 1) flashes at 1Hz.
While in this state, output OUT 1 can be taught.
2.To teach output OUT 2, briefly press the teach button again. The blue LED (OUT 2) now flashes at 1Hz.
While in this state, output OUT 2 can be taught.
3.Briefly press the teach button again to toggle between outputs OUT 1 and OUT 2 in this state. The flashing LED indicates which
output is ready for teaching:
yellow LED flashing = OUT 1 ready for teaching,
blue LED flashing = OUT 2 ready for teaching.
Teaching output OUT 1 or OUT 2
First activate the previously described teach mode for output OUT 1 or OUT 2.
1-point teach (static) 2-point window-teach (static) 1)
1) See table "Switching behavior with 2-point window-teach as a function of the switching function"
1. Place object at desired switching distance. 1. First, place object at desired switching distance for switching point 1.
2. To adjust the selected output, press the teach button for 2…7suntil
the yellow LED (OUT 1) or blue LED (OUT 2) flashes at 3Hz.
The current state of the selected output is frozen during the adjustment
process.
2. To adjust the selected output, press the teach button for 7 … 12s until
the yellow (blue) and green LEDs flash alternately at 3Hz.
3. Release the button.
The current object distance has been taught as the new switching point.
3. Release the button. The sensor remains in teach mode and the LEDs
continue to flash.
4. Error-free teach: LED states and switching behavior according to the dia-
gram shown above.
Faulty teach (object may be too close or too far away – please note scan-
ning range):
green and yellow (blue) LEDs flash at 8Hz until an error-free teach
event is performed.
The selected output is inactive as long as there is a teaching error.
4. Then, place the object at the desired switching distance for switching
point 2.
Note:Theminimum distance between the switching points is as follows:
scanning range of 400mm:40mm
scanning range of 1600mm:160mm
5. Briefly press the teach button again to complete the teach event.
The switching window for the selected output was taught in.
6. Error-free teach: LED states and switching behavior according to the
diagram shown above.
Faulty teach (object may be too close or too far away – please note scan-
ning range):
green and yellow (blue) LEDs flash at 8Hz until an error-free teach
event is performed.
HTU318 Ultrasonic sensors with 2 switching outputs

HTU318-400…-M12 - 01 2017/02
HTU318-1600…-M12 - 01
Adjusting the switching function (NC/NO) via the teach button
The switching function of the sensor is preset as follows on delivery:
OUT 1: NO contact
OUT 2: NC contact
The output function for each output can be individually switched from NO contact (NO - normally open) to NC contact (NC - normally
closed) and vice versa. If the switching function is changed, the switching output is changed to the opposite state (toggled).
First activate the previously described teach mode for output OUT 1 or OUT 2.
Changeover of the switching function
1. To change the switching function of the selected output, press the teach button for longer than 12s.
The current state of the selected output is frozen during the adjustment process.
2. The green and yellow (blue) LEDs flash alternately at 3Hz.
If the yellow (blue) LED is ON afterwards, the selected output operates as an NO contact.
If the yellow (blue) LED is OFF afterwards, the selected output operates as an NC contact.
HTU318

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] HTU318-400…-M12 - 01
[email protected] • www.leuze.com HTU318-1600…-M12 - 01
Synchronization of multiple HTU318 ultrasonic sensors
If adjacent ultrasonic sensors receive the signals of other sensors, so-called crosstalk occurs, which leads to faulty measurement results.
Through temporal synchronization of the adjacent sensors, this can be avoided. Via the Sync/MUX input, the HTU318 ultrasonic sensors
can be synchronized in 2 different ways:
Synchronous operation
In this operating mode the mutual interference of adjacent sensors can be avoided. For this purpose, up to 6 sensors of the same type
are wired together in a network according to the following diagram.
The devices work in synchronous operation with a simultaneous transmission pulse. The response time of the individual sensors in
the network corresponds approximately to that of a single sensor. However, an additional delay time of approx. 20ms occurs in
comparison to the specified response time in standard operation.
Synchronous operation wiring schematic
Sensor 2 Sensor 1Sensor n
NOTE
Please make certain that the wiring is performed according to the connection diagram.
Sync/MUX pin 5 on all sensors in the network must be connected to one another. Generation
of the synchronization signal for all sensors in the network occurs automatically.
HTU318 Ultrasonic sensors with 2 switching outputs

HTU318-400…-M12 - 01 2017/02
HTU318-1600…-M12 - 01
Multiplex operation
In this operating mode the mutual interference of adjacent sensors can be reliably avoided. For this purpose, up to 4 sensors of the same
type are wired together in a network according to the following diagram.
The devices operate in multiplex operation with a cyclically time-delayed transmission pulse and are switched to a passive state out-
side of the active phase, whereby the states of the outputs are frozen until the next active phase. The response time of the individual
sensor in the network is therefore extended with respect to the response time of a single sensor as follows:
Response time in the network = (Response time of sensor * n) + 25ms (n = number of sensors in the network)
Multiplex operation wiring schematic
Resetting to factory settings
The sensor can be reset to the factory setting (one switching point each at 400 mm or 1600 mm).
Resetting to factory settings
1. When switching on the supply voltage (during power-on), press the teach button for >5s.
2. Release the button. The green, yellow and blue LEDs flash alternately and very quickly for a brief time.
The sensor was reset to the factory setting:
switching output OUT 1: NO contact, 1 switching point at 400 mm or 1600 mm (static 1-point teach),
switching output OUT 2: NC contact, 1 switching point at 400 mm or 1600 mm (static 1-point teach).
Sensor 2 Sensor 1Sensor n
GND
NOTE
Please make certain that the wiring is performed according to the connection diagram.
Sync/MUX pin 5 on all sensors in the network must be connected to one another.
To activate multiplex operation, the Sync/MUX cable must be connected to GND for 5 s
when applying the operating voltage.
Generation of the multiplex signal for all sensors in the network occurs automatically.
Activating multiplex operation:
to GND for 5s during power-on.
HTU318