Printed in USA 06/06 P/N 119287 rev. C
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
Miniature Ultrasonic Sensors with TEACH-Mode Programming
WARNING . . . Not To Be Used for Personnel Protection
Never use these products as sensing devices for personnel protection. Doing so could lead to serious injury or death.
These sensors do NOT include the self-checking redundant circuitry necessary to allow their use in personnel safety applications. A sensor failure
or malfunction can cause either an energized or de-energized sensor output condition. Consult your current Banner Safety Products catalog for safety products
which meet OSHA, ANSI and IEC standards for personnel protection.
Models
Features
• Fast, easy-to-use TEACH-Mode programming; no potentiometer adjustments
• Ultra-compact housing
• One discrete output: NPN or PNP, depending on model
• Two bi-colored status LEDs
• Rugged encapsulated version for harsh environments
• Choose 2 meter or 9 meter unterminated cable, 4-pin Euro-style or
4-pin Pico-style QD connectors (either integral or with 150 mm pigtail)
• Wide operating range of -20° to +60° C (-13° to +140° F)
• Temperature compensation
• Configurable for normally open or normally closed operation
• Fast response time (15 milliseconds)
Ultrasonic
Model Sensing
Range TEACH Options Cable* Supply Voltage Output
QS18UNA
50 mm
to
500 mm
(2" to 20")
Integral push button
or remote TEACH
(IP67, NEMA 6P) 4-wire, 2 m (6.5') cable
with shield 12-30V dc
NPN
QS18UPA PNP
QS18UNAE Remote TEACH
(epoxy-encapsulated,
IP68, NEMA 6P)
NPN
QS18UPAE PNP
* Only standard 2 m (6.5') cable models are listed. For 9 m (30') shielded cable, add suffix “W/30” to the model number (e.g., QS18UNA W/30).
QD models:
• For 4-pin integral Euro-style QD, add suffix “Q8” (e.g., QS18UNAQ8). • For 4-pin Euro-style 150 mm (6") pigtail QD, add suffix “Q5” (e.g., QS18UNAQ5).
• For 4-pin integral Pico-style QD, add suffix “Q7” (e.g., QS18UNAQ7). • For 4-pin Pico-style 150 mm (6") pigtail QD, add suffix “Q” (e.g., QS18UNAQ).
A model with a QD connector requires a mating cable (see page 10).
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
2 P/N 119287 rev. C Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Principles of Operation
Ultrasonic sensors emit one or multiple pulses of ultrasonic energy, which travel through
the air at the speed of sound. A portion of this energy reflects off the target and travels
back to the sensor. The sensor measures the total time required for the energy to reach
the target and return to the sensor. The distance to the object is then calculated using
the following formula:
D = ct
2
To improve accuracy, an ultrasonic sensor may average the results of several pulses
before outputting a new value.
Temperature Effects
The speed of sound is dependent upon the composition, pressure and temperature of
the gas in which it is traveling. For most ultrasonic applications, the composition and
pressure of the gas are relatively fixed, while the temperature may fluctuate.
In air, the speed of sound varies with temperature according to the following
approximation:
Cm/s = 20 √273 + TC
Or, in English units:
Cft/s = 49 √460 + TF
Temperature Compensation
Changes in air temperature affect the speed of sound, which in turn affects the distance
reading measured by the sensor. An increase in air temperature shifts both sensing
window limits closer to the sensor. Conversely, a decrease in air temperature shifts both
limits farther away from the sensor. This shift is approximately 3.5% of the limit distance
for a 20° C change in temperature.
The QS18U series ultrasonic sensors are temperature compensated. This reduces the
error due to temperature by about 90%. The sensor will maintain its window limits to
within 1.8% over the -20° to +60° C range.
NOTES:
• Exposure to direct sunlight can affect the sensor’s ability to accurately compensate for
changes in temperature.
• If the sensor is measuring across a temperature gradient, the compensation will be less
effective.
• The temperature warmup drift upon power-up is less than 7% of the sensing distance.
After 5 minutes, the apparent switchpoint will be within 0.6% of the actual position. After
25 minutes, the sensing position will be stable.
D = distance from the sensor to the target
c = speed of sound in air
t = transit time for the ultrasonic pulse
Cm/s = speed of sound in meters per second
TC = temperature in °C
Cft/s = speed of sound in feet per second
TF = temperature in °F
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
P/N 119287 rev. C 3
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Sensor Programming
Two TEACH methods may be used to program the sensor:
• Teach individual minimum and maximum limits, or
• Use Auto-Window feature to center a sensing window around the taught position.
The sensor may be programmed either via its push button, or via a remote switch.
Remote programming also may be used to disable the push button, preventing
unauthorized personnel from adjusting the programming settings. To access this feature,
connect the white wire of the sensor to 0V dc, with a remote programming switch
between the sensor and the voltage.
Programming is accomplished by following the sequence of input pulses (see
programming procedures starting on page 4). The duration of each pulse (corresponding
to a push button “click”), and the period between multiple pulses, are defined as “T”:
0.04 seconds < T < 0.8 seconds
Figure 2. TEACH Interface
Minimum
Operating
Range
Near
Setpoint
Far
Setpoint
Maximum
Operating
Range
Target
Target
Target
Target
Dead Zone
Output
Power Output
Power Output
Power
ON:
Green
OFF
Output
Power
OFF ON:
Green
ON:
Yellow
ON:
Green
OFF ON:
Red
OFF
Push Button
(IP67 models only)
Yellow/Red
TEACH/Output
Indicator LED
Green/Red
Power/Signal
Strength LED
Figure 1. Sensor features
Status Indicators
Power ON/OFF LED Indicates
OFF Power is OFF.
ON Red Target is weak or outside sensing range.
ON Green Sensor is operating normally, good target.
Output/Teach LED Indicates
OFF Target is outside window limits (normally open operation).
Yellow Target is within window limits (normally open operaton).
ON Red (solid) In Teach Mode, waiting for first limit
ON Red (flashing) In Teach Mode, waiting for second limit
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
4 P/N 119287 rev. C Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Teaching Minimum and Maximum Limits
General Notes on Programming
• The sensor will return to RUN mode if the first TEACH condition is not registered within
120 seconds.
• After the first limit is taught, the sensor will remain in PROGRAM mode until the
TEACH sequence is finished.
• To exit PROGRAM mode without saving any changes, press and hold the programming
push button > 2 seconds (before teaching the second limit). The sensor will revert to
the last saved limits.
Output OFF Output ON Output OFF
Minimum
Limit
Maximum
Limit
Output ON Output ONOutput OFF
Minimum
Limit
Maximum
Limit
Normally Closed Operation
Normally Open Operation
Figure 3. Teaching independent minimum
and maximum limits
Procedure
Result
Push Button
0.04 sec. < “click” < 0.8 sec.
Remote Line
0.04 sec. < T < 0.8 sec.
Programming
Mode
• Push and hold
push button
• No action required; sensor is ready for 1st
limit teach
Output LED: ON Red
Power LED: ON Green (good signal) or
ON Red (no signal)
Teach First Limit
• Position the target
for the first limit • Position the target for the first limit Power LED: Must be ON Green
• “Click” the push button • Single-pulse the remote line
Teach Accepted
Output LED: Flashing Red
Teach Unacceptable
Output LED: ON Red
Teach Second Limit
• Position the target for
the second limit • Position the target for the second limit Power LED: Must be ON Green
• “Click” the push button • Single-pulse the remote line
Teach Accepted
Output LED: Yellow or OFF
Teach Unacceptable
Output LED: Flashing Red
...
...
D
or
...
...
D
or
...
...
D
or
T
T
T
T
T
T T
T T T
T T
T T
T
T T
T T
T
T
T
T
T
T
T T
T T T
T T
T T
T
T T
T T
T
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
P/N 119287 rev. C 5
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Teaching Limits Using the Auto-Window Feature
Teaching the same limit twice automatically centers a 20 mm window on the taught
position.
General Notes on Programming
• The sensor will return to RUN mode if the first TEACH condition is not registered within
120 seconds.
• After the first limit is taught, the sensor will remain in PROGRAM mode until the
TEACH sequence is finished.
• To exit PROGRAM mode without saving any changes, press and hold the programming
push button > 2 seconds (before teaching the second limit). The sensor will revert to
the last saved program.
Output OFF Output ON Output OFF
Position
- 10 mm
Position
+ 10 mm
Position
- 10 mm
Taught Position
Output ON Output ON
Output OFF
Taught Position
Normally Closed Operation
Normally Open Operation
Position
+ 10 mm
Figure 4. Using the Auto-Window feature
for programming each output
Output OFF Output ON
Taught Position
(background surface)
Near
Range Position
-10 mm
Position
+10 mm
Sensor
Output
ON
Sensor
Output
OFF
Any object in this area will switch
the output, whether or not the object
returns a good signal to the sensor.
Sensing Distance
Figure 5. An application for the Auto-Window feature (retroreflective mode)
Procedure
Result
Push Button
0.04 sec. < “click” < 0.8 sec.
Remote Line
0.04 sec. < T < 0.8 sec.
Programming
Mode
• Push and hold
push button
• No action required; sensor is ready for 1st
limit teach
Output LED: ON Red
Power LED: ON Green (good signal) or
ON Red (no signal)
Teach Limit
• Position the target
for the first limit • Position the target for the center of window Power LED: Must be ON Green
• “Click” the push button • Single-pulse the remote line
Teach Accepted
Output LED: Flashing Red
Teach Unacceptable
Output LED: ON Red
Re-Teach
Limit
• Without moving the
target, “click” the
push button again
• Without moving the target,
single-pulse the remote line
again
Teach Accepted
Output LED: Yellow or OFF
Teach Unacceptable
Output LED: Flashing Red
...
...
D
or
...
...
D
or
T
T
T
T
T
T T
T T T
T T
T T
T
T T
T T
T
...
...
D
or
T
T
T
T
T
T T
T T T
T T
T T
T
T T
T T
T
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
6 P/N 119287 rev. C Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Procedure
Result
Push Button Remote Line
0.04 sec. < T < 0.8 sec.
Push Button
Lockout
• Not available via push button • Four-pulse the remote line • Push buttons are either enabled or
disabled, depending on condition.
Procedure
Result
Push Button Remote Line
0.04 sec. < T < 0.8 sec.
Toggle between
N.O. / N.C. Operation
• Not available via push button • Triple-pulse the remote line
• Either Normally Open or Normally Closed
operation is selected, depending on
previous condition.
Normally Open/Normally Closed Operation Select
The sensor can be configured for either normally open or normally closed operation
via the remote teach wire (white). A series of three pulses on the line will toggle
between normally open and normally closed operation. Normally open is defined as the
output energizing when the target is present. Normally closed is defined as the output
energizing when the target is absent. See Figures 3 and 4.
T
T
T
T
T
T T
T T T
T T
T T
T
T T
T T
T
Push Button Lockout
Enables or disables the push button to prevent unauthorized personnel from adjusting
the program settings.
T
T
T
T
T
T T
T T T
T T
T T
T
T T
T T
T
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
P/N 119287 rev. C 7
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Sensing Range 50 to 500 mm (2" to 20")
Supply Voltage 12 to 30V dc (10% maximum ripple); 25 mA max. (exclusive of load)
Ultrasonic Frequency 300 kHz, rep. rate 7.5 ms
Supply Protection
Circuitry Protected against reverse polarity and transient voltages
Output Configuration SPST solid-state switch conducts when target is sensed within sensing window; one NPN (current sinking) or one
PNP (current sourcing), depending on model.
Output Protection Protected against short circuit conditions
Output Ratings 100 mA maximum
OFF-state leakage current: < 10 microamps (sourcing); < 200 microamp (sinking)
NPN saturation: < 1.6V @ 100 mA
PNP saturation: < 2.0V @ 100 mA
Output Response Time 15 milliseconds
Delay at Power-Up 300 milliseconds
Temperature Effect Non-encapsulated models: ± 0.05% per °C from -20° to +50° C, ± 0.1% per °C from +50° to +60° C
Encapsulated models: ± 0.05% per °C from 0° to +60° C, ± 0.1% per °C from -20° to 0° C
Repeatability 0.7 mm
Minimum Window Size 5 mm
Hysteresis 1.4 mm
Adjustments Sensing window limits: TEACH-Mode programming of near and far window limits may be set using the push button
or remotely via TEACH input (see page 3).
Indicators Range Indicator (Red/Green)
Green — Target is within sensing range
Red — Target is outside sensing range
OFF — Sensing power is OFF
Teach/Output Indicator (Yellow/Red)
Yellow — Target is within taught limits
OFF — Target is outside taught window limits
Red — Sensor is in TEACH mode
Construction Housing: ABS Push Button Housing: ABS
Push Button: TPE Lightpipes: Polycarbonate
Operating Conditions Temperature: -20° to +60° C (-4° to +140° F)
Maximum relative humidity: 100%, non-condensing
Connections 2 m (6.5') or 9 m (30') 4-conductor PVC jacketed attached cable or 4-pin Euro-style integral QD (Q8), or
4-pin Pico-style integral QD (Q7), or 4-pin Euro-style 150 mm (6") pigtail QD (Q5), or 4-pin Pico-style 150 mm (6")
pigtail QD (Q)
Environmental Rating Leakproof design, rated NEMA 6P; IEC IP67 or IP68, depending on model (see page 1)
Vibration and
Mechanical Shock
All models meet Mil. Std. 202F requirements method 201A (vibration: 10 to 60 Hz max., double amplitude 0.06",
maximum acceleration 10G). Also meets IEC 947-5-2 requirements: 30G 11 ms duration, half sine wave.
Temperature Warmup
Drift
See Temperature Compensation, page 2
Application Notes Objects passing inside the specified near limit may produce a false response.
Certifications Approvals are pending
Specifications
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
8 P/N 119287 rev. C Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Dimensions
Cabled Models
Sensor Response Curves
Hookups
wh
shield
bn
bu
bk
12 - 30V dc
Load
Remote programming
switch (normally open)
QS18U Effective Beam Pattern (Typical) QS18U Maximum Target Rotation Angle
wh
bn
bu
bk
12 - 30V dc
Load
Remote programming
switch (normally open)
shield
Cable and QD hookups are functionally identical.
4ARGET2OTATION
3ENSING$ISTANCEMM
,ATERAL$ISTANCEMM
3ENSING$ISTANCEMM MMROD
MMROD
MMXMMPLATE
15.0 mm
(0.59")
8.0 mm
(0.32")
24.2 mm
(0.95")
33.5 mm
(1.32")
3 mm
(0.12")
17.1 mm
(0.67")
24.1 mm
(0.95")
35.0 mm
(1.38")
150 mm (6")
Pico-style
Pigtail
150 mm (6")
Euro-style
Pigtail
41.5 mm
(1.63") 49 mm
(1.93")
Integral
4-pin
Pico-Style QD
Integral
4-pin
Euro-Style QD
1.6 mm
(0.06")
Ø 17.8 mm
(0.70")
Ø 23.9 mm
(0.94")
M18 x 1 Thread
(max. torque 32 in-lbs)
ø 3.3 mm (0.13")
(max. torque 8 in-lbs)
Pico-Style QD Models Euro-Style QD Models
Locknut (Included with All Models)
It is recommended that the shield wire be connected to earth ground. Shielded cordsets are recommended for all QD models.
NPN (Sinking) Output Models PNP (Sourcing) Output Models
Washer (Included with All Models)
M3 Hardware Packet Contents:
2 – M3 x 0.5 x 20 mm SS Screw
2 – M3 x 0.5 SS Hex Nut
2 – M3 SS Washer
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
P/N 119287 rev. C 9
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Accessories
Quick-Disconnect Cables
Style Model Length Dimensions Pinout
4-pin
Pico-style
Straight with
shield, snap-on
connector
PKG4S-2 2 m (6.5')
4-pin
Pico-style
Right-angle with
shield, snap-on
connector
PKW4ZS-2 2 m (6.5')
4-pin
Euro-style
Straight
with shield
MQDEC2-406
MQDEC2-415
MQDEC2-430
2 m (6.5')
5 m (15')
9 m (30')
4-pin
Euro-style
Right-angle
with shield
MQDEC2-406RA
MQDEC2-415RA
MQDEC2-430RA
2 m (6.5')
5 m (15')
9 m (30')
White Wire
Blue Wire
Black Wire
Brown Wire
M12 x 1
ø 15 mm
(0.6")
44 mm max.
(1.7")
38 mm max.
(1.5")
M12 x 1
ø 15 mm
(0.6")
38 mm max.
(1.5")
ø10 mm max.
(0.4")
28 mm max.
(1.1")
20 mm
(0.8")
25 mm max.
(1.0")
ø12 mm max.
(0.5")
Black Wire
Blue Wire Brown Wire
White Wire
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
10 P/N 119287 rev. C Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
SMBQS18RA
• 304 stainless steel
• Right-angle bracket
• NOTE: Integral QD models must mount to
the “outside” to allow clearance
SMB18A
• 12-gauge, stainless steel, right-angle
mounting bracket with a curved mounting
slot for versatility and orientation
• Clearance for M4 (#8) hardware
SMB18SF
• 18 mm swivel bracket
• Black thermoplastic polyester
• Includes stainless steel hardware
SMB18UR
• 2-piece universal 18 mm swivel bracket
• 300 series stainless steel
• Includes stainless steel swivel locking
hardware
18.5 mm
(0.73")
25.4 mm
(1.00")
41 mm
(1.6")
46 mm
(1.8")
30
30 mm
(1.2")
R 24.2 mm
(0.95")
ø 4.6 mm*
(0.18")
4.6 mm*
(0.18")
* Use 4 mm (#8) screws to mount bracket.
Drill screw holes 24.2 mm (0.95") apart.
7.6 mm
(0.30")
36.0 mm
(1.42")
50.8 mm
(2.00")
42.0 mm
(1.65") 22.9 mm
(0.9")
25.4 mm
(1.00")
10.6 mm
(0.42")
M18 x 1
internal
thread
50.8 mm
(2.0")
66.0 mm
(2.60")
41.7 mm
(1.64")
20.8 mm
(0.82")
16.0 mm
(0.63 ")
45.2 mm
(1.78")
ø18.3 mm
(0.72")
2.7 mm
(0.10")
2.7 mm
(0.10")
27.2 mm
(1.07")
ø20.3 mm
(0.80")
ø30.5 mm
(1.20")
R2.5 mm
(0.10")
60º
60º
46.7 mm
(1.84")
9.7 mm
(0.38")
71.1 mm
(2.80")
20.3 mm
(0.80")
4X 6.9 mm
(0.27")
20.3 mm
(0.80")
33.8 mm
(1.33")
60º
25.4 mm
(1.00")
25.4 mm
(1.00")
8.1 mm
(0.32")
41.7 mm
(1.64") 20.8 mm
(0.82")
6X #10-32 Thru
ø30.5 mm
(1.20")
63.5 mm
(2.50")
SMB18UR Top
SMB18UR Bottom
24.6 mm
(0.97")
Mounting Brackets
MM
MM
MM
MM
MM
MM
MM
MM
MM
MM
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
P/N 119287 rev. C 11
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Banner Engineering Corp., 9714 Tenth Ave. No., Minneapolis, MN USA 55441 • Phone: 763.544.3164 • www.bannerengineering.com • Email: sensors@bannerengineering.com
WORLD BEAM
®
QS18U Series Ultrasonic Sensors
P/N 119287 rev C.
WARRANTY:
Banner Engineering Corp. warrants its products to be free from defects for one year. Banner Engineering Corp. will repair or replace,
free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty period. This warranty
does not cover damage or liability for the improper application of Banner products. This warranty is in lieu of any other warranty either expressed or
implied.
