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3.3.7. Ground connection 
 
Inverter Ground terminal must be connected to installation ground correctly and  
according to the required local wiring regulations. 
 
  Ground cable size must be according to the required local wiring 
regulations. Ground connection should be as short as possible.  
  Do not share the ground of the inverter with other high current loads (Welding 
machine, high power motors). Ground each unit separately. 
  Ensure that all ground terminals and connections are secure 
  Do not make ground loops when several inverters share a common ground point. 
Note: Please leave at least 5cm while installing inverter side by side in order to provide 
enough cooling space.  
 
 
 
 
 
 
 
 
(a)  Correct         (b) Correct                             (c) Incorrect