Fundamental safety instructions 
  1.1 General safety instructions 
SINAMICS G110D 
Operating Instructions, 07/2016, FW V3.63, A5E36768472B AB 
11 
 
Danger to life due to fire spreading if housing is inadequate 
Fire and smoke development can cause severe personal injury or material damage.  
•  Install devices without a protective housing in a metal control cabinet (or protect the 
device by another equivalent measure) in such a way that contact with fire is prevented. 
•  Ensure that smoke can only escape via controlled and monitored paths. 
 
Danger to life through unexpected movement of machines when using mobile wireless 
devices or mobile phones 
Using mobile wireless devices or mobile phones with a transmit power > 1 W closer than 
approx. 2 m to the components may cause the devices to malfunction, influence the 
functional safety of machines therefore putting people at risk or causing material damage. 
•  Switch the wireless devices or mobile phones off in the immediate vicinity of the 
components. 
 
 
Danger to life due to the motor catching fire in the event of insulation overload 
There is higher stress on the motor insulation through a ground fault in an IT system. If the 
insulation fails, it is possible that death or severe injury can occur as a result of smoke and 
fire.  
•  Use a monitoring device that signals an insulation fault. 
•  Correct the fault as quickly as possible so the motor insulation is not overloaded. 
 
Danger to life due to fire if overheating occurs because of insufficient ventilation clearances 
Inadequate ventilation clearances can cause overheating of components with subsequent 
fire and smoke. This can cause severe injury or even death. This can also result in 
increased downtime and reduced service lives for devices/systems.  
•  Ensure compliance with the specified minimum clearance as ventilation clearance for 
the respective component.