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Ultrasonic Barrier
Operating Manual
Applications
The ultrasonic barrier consists of an ultrasonic transmitter and a receiver
located opposite. The transmitter generates a continuous ultrasonic tone
which the receiver detects. If an object interrupts the ultrasonic beam, the
output signal changes.
For physical reasons, ultrasonic barriers must NOT be used
for personnel protection or EMERGENCY STOP functions.
Mounting
Dimensional drawing:
Figure I (dimensions in mm)
any
Mounting position:
Connection
4-pin cable socket (M8, M12) or cable: Figure II
Pin assignment: (max. cable length 300 m)
Transmitter 3RG6243-.NN00
Pin No.
Color
Assignment
1
brown
L +
3
blue
L -
Receiver, NO contact 3RG6243-.PB00
Pin No.
Color
Assignment
1
brown
L +
2
white
open or L+
or L -
3
blue
L -
4
black
NO
Receiver, NC contact 3RG6243-.PA00
Pin No.
Color
Assignment
1
brown
L +
2
white
NC
3
blue
L -
4
black
open or L+
or L -
Ther teminals are protected against reversed polarity, inherently short-
circuit-proof and overload-proof.
(L-) wire-break protection is built in.
If electrical faults occur, we advise the installation of shielded wires.
Adjusting sensitivity and range
Adjust the sensitivity using terminal "XI":
characteristics for more precise data:
Figures IVb/IVd:
minimum object width B for moving objects
minimum gap width L for moving objects
Figures IVc/IVe:
Notes
: Sensitivity limits apply under the following conditions
• ambient temperature of 20 °C
• minimum air movement
• optimum alignment of transmitter and receiver,
• objects with sharp edges
: Adjust sensitivity before power on!
Important
Example1
: Object detection,
Figure IIIa
Count different sizes of box on conveyor belt.
Belt size:
Width (w): 5 to 10 cm, height (h): 6 to 15 cm, depth (d): 8 to 25 cm
Conveyor belt width: D = 45 cm
Belt velocity: v = 2.5 m/s
Wanted: sensitivity adjustment (XI) for receiver and spacing (D)
between transmitter and receiver.
Solution:
In
enter the min. box width of w = 5 cm and the conveyor belt
Figure IVd
width of D = 45 cm. Adjust average sensitivity (XI to L-).
2
Function
20 to 30 VDC
Reference potential
Function
20 to 30 VDC
Terminal "XI" to adjust sensiti-
vity
Reference potential
Switching output
Function
20 to 30 VDC
Switching output
Reference potential
Terminal "XI" to adjust sensiti-
vity
Table
Figure IVa: See
Figure IVa
.
Order No.: 3ZX1012-0RG62-1AA1
Example 2: gap detection,
Figure IIIb
Bottle count
0.33 l bottles: height: 23 cm, diameter 6 cm
Gap between bottles: L > 0.35 cm
Belt velocity: v = 3 m/s
Wanted: sensitivity adjustment (XI) for receiver and gap (D)
between transmitter and receiver.
Solution:
In Figure IVe enter the min. gap width L = 0.35 cm.
The characteristic produces: D < 30 cm
Adjust bottom sensitivity (XI to L+).
Operation
Figures IIIa, IIIb:
Receiver, NO contact 3RG6243-.PB00:
Each object sets the NO output; each gap resets the output.
Receiver, NC contact 3RG6243-.PA00:
Each object resets the NC output; each gap sets the output.
The objects must not be permeable to ultrasonic waves!
Note:
Technical Data
Weight, transmitter or receiver
3RG6243 -0..00
cable (3m)
-3..00
M12 connector
-7..00
M8 connector
Ambient conditions:
Ambient temperature:
Operation
Storage
Degree of protection
Vibration
Shock
Power supply:
Power indicator
Rated voltage V e
Operating voltage range V op
Perm.residual ripple
No-load current I 0
:
Switching output
3RG6243-.PB00
3RG6243-.PA00
Switching state indicator
Load current I e
Voltage drop V d
Max. delay
Typ. values:
Time delay before availability
Ultrasonic frequency
Max. switching frequency
EMC tests as per IEC 61000-4-.:
IEC ..-2: Electrostat. discharge resistance
IEC ..-3: HF interference resistance
IEC ..-4: Fast transient resistance
IEC ..-6: HF interference resistance (line)
IEC 60255-5: Surge withstand capability
3RG6243-..
DIN EN 60947 Part 5-2
:
approx. 100 g
approx. 40 g
approx. 35 g
0 to +70°C
-25 to +80°C
IP 67
11 to 55 Hz, 1 mm amplitude
30 g, 18 ms
green LED
24 V DC
20 to 30 V DC (20% reduced sen-
sitivity at 12 to 20 V)
10%
receiver
≤ 20 mA
transmitter
≤ 30 mA
NO
p-switching (PNP)
NC
p-switching (PNP)
yellow LED
≤ 100 mA
≤ 2 V at 100 mA
2 ms
40 ms
200 kHz
200 Hz
4 kV / 8 kV
10 V/m
2 kV
7 V
1 kV
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