12  Safety instructions   
General warning tells you about conditions, other than 
those caused by electricity, which can cause injury or 
death, or damage to the equipment.
Safety in installation
These instructions are for all who install or connect an optional 
module to a drive, converter or inverter and need to open its front 
cover or door to do the work. 
WARNING! Obey these instructions. If you ignore them, 
injury or death, or damage to the equipment can occur.
•
If you are not a qualified electrician, do not do installation or 
maintenance work.
•
Disconnect the drive, converter or inverter from all possible 
power sources. After you have disconnected the drive, 
converter or inverter, always wait for 5 minutes to let the 
intermediate circuit capacitors discharge before you continue.
•
Disconnect all dangerous voltages connected to other control 
signal connectors in reach. For example, it is possible that 230 
V AC is connected from outside to a relay output of the drive, 
converter or inverter.
•
Always use a multimeter to make sure that there are no parts 
under voltage in reach. The impedance of the multimeter must 
be at least 1 Mohm.