Siemens SINAMICS S120 Manual page 444

Options
8.22 K95, Control Unit CU320-2 PN
NOTICE
Observe ESD regulations
The CompactFlash card is an electrostatic sensitive component. ESD regulations must be
observed when inserting and removing the card.
NOTICE
Only withdraw or insert the option board in a de-energized state
The Option Board may only be inserted and removed when the control unit and option
board are disconnected from the power supply.
442
Cabinet Modules
Manual, 03/2013, A5E03263538A