Connection
5.1
Safety when connecting up
Safety notices
When connecting up the device, keep to the safety notices listed below.
EXPLOSION HAZARD
Replacing components may impair suitability for Class 1, Division 2 or Zone 2.
EXPLOSION HAZARD
Do not open the device when the supply voltage is turned on.
Note
Close unused sockets
Close all unused M12 sockets with protective caps (torque at least 0.4 Nm) to achieve the
specified type of protection.
Note
Strain relief of the interfaces
To prevent weights or mechanical movement that can affect an interface causing interrupted
contact, fix the cables to a cable guide or rail at short intervals.
SCALANCE W788C-2
Operating Instructions, 01/2017, A5E03692120-11
WARNING
WARNING
5
29