Remove the defective fan ② and disconnect the cable.
Connect the cable and t the replacement fan ③ until it engages:
• The adhesive label faces inward.
• The cable guide is top right.
• Ensure that the cable is not crushed.
10.3 Firmware update
During operation, it may be necessary to update the rmware (e.g. to extend the available
functions). You update the rmware of the respective device with the help of device-specic
rmware les. The retentive data is retained after the rmware has been updated.
Firmware updates and a history of the versions with the innovations are provided to you on the
Internet. Depending on what rmware updates are available, you can update the devices
individually or together.
You can perform a rmware update for the following devices:
• 3RW55 or 3RW55 Failsafe soft starter
• 3RW5 HMI High Feature (not possible via eldbus)
• 3RW5 communication modules
Maintenance and service
10.3 Firmware update
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006 275
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