DOC-0017-07-EN: AC20 Series - EtherCAT Option  
4 (58)  DOC-0017-07-EN-B  04.04.2023  
 
Safety & EMC Requirements 
Where there is a conflict between safety and EMC requirements, personnel safety shall always take 
precedence. 
 
 
Ignoring the following may result in injury or 
damage to equipment:
 
 
-  Never perform high voltage resistance checks on the wiring 
without first disconnecting the inverter from the circuit being 
tested. 
-  Whilst ensuring ventilation is sufficient, provide guarding and /or 
additional safety systems to prevent injury or damage to 
equipment. 
-  When replacing an inverter in an application and before returning 
to use, it is essential that all user defined parameters for the 
product’s operation are correctly installed. 
-  When replacing an inverter in an application and before returning 
to use, it is essential that all user defined parameters for the 
product’s operation are correctly installed. 
-  All control and signal terminals are SELV, i.e. protected by double 
insulation. Ensure all external wiring is rated for the highest 
system voltage. 
-  Thermal sensors contained within the motor must have at least 
basic insulation. 
-  All exposed metalwork in the Inverter is protected by basic 
insulation and bonded to a safety earth. 
-  RCDs are not recommended for use with this product but, where 
their use is mandatory, only Type B RCDs should be used. 
 
 
 
Ignoring the following may result in injury or 
damage to equipment:
 
 
-  In a domestic environment this product may cause radio 
interference in which case supplementary mitigation measures 
may be required. 
-  This equipment contains electrostatic discharge (ESD) sensitive 
parts.  Observe static control precautions when handling, 
installing and servicing this product. 
-  This is a product of the restricted sales distribution class 
according to IEC 61800-3. It is designated as “professional 
equipment” as defined in EN61000-3-2 for. Permission of the 
supply authority shall be obtained before connection to the public 
low voltage supply.