Datasheet

Ultrasonic sensor UB2000-30GM-E5-V15
4
Release date: 2017-07-03 12:07 Date of issue: 2017-07-03 097969_eng.xml
Germany: [phone]Pepperl+Fuchs Group
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
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Synchronization
This sensor features a synchronization input for suppressing ultrasonic mutual interference ("cross talk"). If this input is not connected, the sensor
will operate using internally generated clock pulses. It can be synchronized by applying an external square wave. The pulse duration must be ≥
100 µs. Each falling edge of the synchronization pulse triggers transmission of a single ultrasonic pulse. If the synchronization signal remains low
for ≥ 1 second, the sensor will revert to normal operating mode. Normal operating mode can also be activated by opening the signal connection
to the synchronization input (see note below).
If the synchronization input goes to a high level for > 1 second, the sensor will switch to standby mode, indicated by the green LED. In this mode,
the outputs will remain in the last valid output state.
Note:
If the option for synchronization is not used, the synchronization input has to be connected to ground (0 V) or the sensor must be operated via a
V1 cordset (4-pin).
The synchronization function cannot be activated during programming mode and vice versa.
The following synchronization modes are possible:
1. Several sensors (max. number see technical data) can be synchronized together by interconnecting their respective synchronization inputs.
In this case, each sensor alternately transmits ultrasonic pulses in a self multiplexing mode. No two sensors will transmit pulses at the same
time (see note below).
2. Multiple sensors can be controlled by the same external synchronization signal. In this mode the sensors are triggered in parallel and are syn-
chronized by a common external synchronization pulse.
3. A separate synchronization pulse can be sent to each individual sensor. In this mode the sensors operate in external multiplex mode (see note
below).
4. A high level (+U
B
) on the synchronization input switches the sensor to standby mode.
Note:
Sensor response times will increase proportionally to the number of sensors that are in the synchronization string. This is a result of the multiplex-
ing of the ultrasonic transmit and receive signal and the resulting increase in the measurement cycle time.
Installation conditions
If the sensor is installed in an environment where the temperature can fall below 0 °C, one of these mounting flanges must be used for mounting:
BF30, BF30-F, or BF 5-30.
If it is intended to operate the sensor at - 25 °C, we recommend discussing the mounting situation with a Pepperl + Fuchs application specialist
to ensure a trouble-free operation.
If the sensor is mounted in a through hole using the included steel nuts, it must be mounted at the middle of the threaded housing. If it must be
mounted at the front end of the threaded housing, plastic nuts with centering ring (optional accessories) must be used.
Green LED Red LED Yellow LED
During Normal operation
Proper operation
Interference (e.g. compressed air)
On
Off
Off
Flashing
Switching state
Previous state
During sensor programming
Object detected
No object detected
Object uncertain (programming invalid)
Flashing
Off
Off
Off
Flashing
Flashing
Flashing
Flashing
Flashing