Electrical connection
FIT
®
7A
A03924_02_YI0_00
HBM: public
13
FIT7A pin assignment - type E
Device socket 1 ‒ digital communication
Pin
RS‐485
CANopen/
DeviceNet
Wiring code for
1-KAB165
Wiring code for
1-KAB173
1
GND
GND
White
White
2
Diagnosis RbTb
Diagnosis RbTb
Brown
Brown
3
RA
CAN High IN
Green
Green
4
Diagnosis RaTa
Diagnosis RaTa
Yellow
Yellow
5
RB
CAN Low IN
Gray
Gray
6
TB
CAN Low OUT
Pink
Black
7
TA
CAN High OUT
Blue
Blue
8
U
B1
U
B1
Red
Red
Device socket 2 ‒ inputs and outputs
Pin
Wiring code for
1-KAB165
Wiring code for
1-KAB173
1
-
White
White
2
IN2
Brown
Brown
3
OUT2
Green
Green
4
IN1
Yellow
Yellow
5
OUT4
Gray
Gray
6
OUT3
Pink
Black
7
OUT1
Blue
Blue
8
U
B2
Red
Red
1)
For digital load cells, HBM recommends two cable types, 1-KAB165 or 1-KAB173, depending on
the application. Detailed information about these cables is available in data sheet B3643, which
can be found under "Product Data Sheet & Literature" on our website
2)
For U
B2
, choose either the same voltage source as for U
B1
, or a separate voltage source. In both
cases, the signals are referenced to the GND with which pin 1 of socket 1 is connected. If a
separate voltage source is chosen for the inputs and outputs, this must be connected with the
common GND of pin 1.