11
VKIA405
HBM
A2448-1.1 en/de/fr
5
Connection
The terminals are identified as shown in the following diagram. The colors
correspond to the wire colors used for HBM load cells.
VKIA405-
Load cells
Terminals
connection
Excit. A
=
(blue) Excitation (+)
Sense A
=
(green) Sense (+)
In A
=
(white) Signal (+)
In B
=
(red) Signal (−)
Sense B
=
(gray) Sense (−)
Excit. B
=
(black) Excitation (−)
Screen
= Screen
(Shield),
connected with housing
Fig. 5.1:
Terminal designation and cable assignment of load cells in 6-wire
configuration
+
−
12...
30 V
DC
UB
GND
OUT
Load
(max. 500 mA)
Fig. 5.2:
Connection of switching output to amplifier
Interface
converter
SC232/422B
Control
computer
Amplifier electronics
Amplifier electronics
T/RB
T/RA
GND
T/RB
T/RB
T/RA
T/RA
GND
GND
RS 485 2-wire Bus
VKIA405
VKIA405
Fig. 5.3:
Connection of RS485 2-wire interface for bus mode
