5 Setup
4.3
Wiring plan
4
L
N
1 2
1
Abb. 12: Version: Electronics „R" - double relay (DPDT)
1
Voltage supply
2
Relay 1
3
Relay 2
4
Control lamp
5
Density adaptation (DIL switch)
6
Mode adjustment min./max. (DIL switch)
Connection to a PLC
If inductive loads or stronger currents are swit-
ched through, the gold plating on the relay con-
tact surface will be permanently damaged. The
contact is then no longer suitable for switching
low-voltage circuits.
Inductive loads also result from the connection
to a PLC input or output and/or in combination
with long cables. It is imperative that you take
measures to extinguish sparks to protect the
relay contact (e.g. Z diode) or use an electronic
version with transistor output.
We recommend connecting VEGAVIB S 61 in
such a way that the switching circuit is open
when there is a level signal, line break or failure
(safe state).
The relays are always shown in non-operative
condition.
2
1 2 3 4
1
Abb. 13: Version: Electronics „T" - transistor (NPN/
PNP)
1
Voltage supply
2
Control lamp
3
Density adaptation (DIL switch)
4
Mode adjustment min./max. (DIL switch)
18
5
3
4 5 6 7 8
min
max
6
3 4 5 6 7 8
2
3
3
1 2 3 4
min
max
4
+
+
1
Abb. 14: Assignment: NPN and PNP
1
NPN action
2
PNP action
5
Setup
5.1
General information
Function/Configuration
On the electronics module you will find the
following display and adjustment elements:
•
DIL switch for adjustment of the density
range
•
DIL switch for mode adjustment - min./max.
•
Control lamp (LED)
5.2
Adjustment elements
Adjustment of the density range
With this DIL switch, the switching point can be
set to bulk solids having a density between 0.1
and 0.3 g/cm³.
As default setting, the switch of VEGAVIB S
61 is set to the large weight symbol (> 0.03 g/
cm³). In very light solids you should turn the DIL
switch to the small weight symbol (0.1 ... 0.3 g/
cm³). By doing this, VEGAVIB S 61 is more sen-
sitive and can detect light solids reliably.
Mode adjustment
With the mode setting (min./max.) you can
change the switching condition of the relay.
You can set the required mode according to
the "Function table" (max. - max. detection or
overflow protection, min. - min. detection or dry
run protection).
We recommend connecting according to the
idle current principle (relay contact deenergizes
when the switching point is reached), because
the relay always takes on the same (safe) state
if a failure is detected.
Control lamp
Control lamp (LED) for indication of the swit-
-
+
-
-
+
-
2
VEGAVIB S 61 •