15
6 Setup
VEGATOR 112 •
46106-EN-210714
hysteresis can be defined individually. Here, the max. level must be
set to sensor input 1, the min. level to sensor input 2.
The two-point control is used for example when filling and emptying
is carried out via a pump. The filling of a vessel can be for example
switched on at 10 % and switched off again at 90 %. The output of the
second channel behaves identically like the first channel provided the
same mode is set. By changing the mode, the function of the relays
can be inverted.
When NAMUR level switches are connected, the line monitoring func-
tion can check the input continuously for line break or short-circuit. If
a mechanical switch, e.g. a float switch, is to be connected, the line
monitoring must be deactivated because only the switching condi-
tions "open" or "closed" can be delivered.
When level switches VEGAVIB/VEGAWAVE/VEGASWING in NAMUR
version are connected, a function test can be carried out. The test key
is recessed behind the front plate of the controller. Press the test key
for at least one second with a suitable object (screwdriver, pen, etc.).
Note:
Keep in mind that downstream connected devices are activated dur-
ing the function test. This allows you to check the correct function of
the complete measuring system.
Test procedure with VEGAVIB/VEGAWAVE
Pushing the test key interrupts the circuit to the sensor and triggers
a restart of the sensor. In the process, the conditions fault signal, full
alarm (< 1 mA) and empty alarm (> 2.2 mA) are simulated one after
the other. Check if a fault signal is triggered when you push the test
key (red LED lights). The red LED does not light up when line monitor-
ing is deactivated.
After the test key is released, the sensor is again supplied with
voltage. During the warm-up phase of the sensor, the current briefly
increases, which can energize the relay and the yellow LED. This is
not relevant for the test assessment.
Once the sensor is ready for operation, a full alarm is simulated for
approx. 3 s, the yellow LED does not light and the relay is deener-
gized. For a positive test assessment, the time must be between 2 s
and 4 s.
①
Finally, an empty alarm is simulated by the sensor for approx. 1.5 s.
The yellow LED lights and the relay is energized. For a positive test
assessment, this time must be at least 1 s.
②
The test procedure is now finished, LED and relay return to the actual
operating condition.
③
Line monitoring
Test key
