VEGA VEGASCAN 850 - Manual (Page 58)

58 VEGASCAN 850
Electrical connection
5.4 Connection of the sensors to
VEGASCAN 850
Use the terminal VBUS1, when using a
VEGASCAN 850 for 15 sensors. Sensors
16 … 30 are connected to the terminals
VBUS2.
Up to 15 sensors can be connected to each
VBUS branch on one two-wire cable.
PE L
POWER PC2
RxD
DTR GND
TxD
FIELDBUS VBUS1 VBUS2
N + + +
- - -
+ + +
- - -
on
off
VBUS1 VBUS2
It is a good idea to optimise the current distri-
bution by dividing the BUS into three
branches with five sensors each.
VBUS1
+ + +
- - -
Sensor 1 … 15
VBUS1
+ + +
- - -
Sensor
1 … 5 Sensor
6 … 10 Sensor
11 … 15
The electrical connection is made by spring
terminals. The clamping opening can be
opened with a small screwdriver by inserting
it into the opening slot above the clamping
position and pushing upwards. Then the
terminal and the copper core of the connec-
tion wire can be inserted.