16
If a prewired connection cable is used, remove the cores with unused
signal inputs and outputs�
Provide the unconnected signal inputs with sealing of the individual cores�
Unconnected cores or core loops are not permitted�
In case of signal failures, operate inputs with shielded cables� Connect the
shields to the shield connection on one side�
WARNING!
Load dump and surge
> Destruction of the device or deterioration of the safety function
►
Always connect VBB
0
�
The CAN bus is internally protected against short circuit to VBB and GND�
For CAN cables ≥ 30 m, ensure appropriate protection against surge (e.g.
shielded cables)�
6.5.1 GND connections
►
Connect the GND
1���2
and GND
SYS
connections individually to the common GND
star point�
►
Connect the GND connections of the sensors of the high-side digital inputs
(CSO) and the actuators (loads) to the common GND star point�
WARNING!
Wrong connection of the GND connections
> Loss of the safety function, the measurement accuracy and
EMC possible
►
Do not connect the GND
ANA
, GND
RES
and GND
OVA
connections
to the common GND star point, but to the GND of the signal
source or of the connected device�