Steca Tarom 4545 - Function Ground ( in Fig. 1)

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9.2.7 Function ground ( in Fig. 1)
DANGER!
Risk of death by electrocution. Grounding causes the system to leave the safety extra-low
voltage range. Protection against directly touching live components must be restored via appro-
priate isolation measures.
The controller does not need to be grounded in stand-alone systems. We recommend not
grounding the controller. Also observe the local regulations.
If required, the controller can be grounded via the positive battery terminal '1+'  Bat+ Fig. 1 of the
controller.
Observe the following:
Q The connection point must lie between the external battery fuse and the controller.
Q The connection point can be used as a common ground for all system components.
Q Take the grounding of the entire system into account.
ATTENTION!
– The system voltage of thin-film modules must be positive to avoid corrosion. This require-
ment is satisfied in stand-alone systems that are not grounded.
– Danger of damaging the devices (e.g. computer) connected to the Master/Slave bus or the
UART interface. All bus connections must be galvanically isolated when the system is
grounded.