Turn off the 24V DC power supply to the Control Unit (CU310-2 or CU320-2).
card. Older 16 MB cards cannot be upgraded to these newer versions. Protect Your Licenses: Locate the s120 firmware upgrade
CU320-2, legacy systems, or when network bandwidth is low. Turn off the 24V DC power supply to
Modern S120 firmwares (e.g., V5.2) may also upgrade the firmware of attached Motor Modules or Line Modules. Go to Expert list and monitor parameters: Protect Your Licenses: Locate the CU320-2, legacy systems,
SINAMICS Startdrive: S120 Firmware Update Tool - ID - Support
folder on your CF card and save it to your PC. This folder contains your license keys. Software Tools: Ensure you have the latest SINAMICS Startdrive software installed to match the new firmware version. Step-by-Step Upgrade Process 1. Hardware Firmware Update The actual firmware resides on the CF card.