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Siemens AG
Entry type: FAQ Entry ID: 109760219, Entry date: 09/05/2018
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SINAMICS G120C/CU240B-2/CU240E-2/CU250S-2/CU230P-2 with firmware V4.7 SP9 HF1: Firmware upgrade using MMC/SD card

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This FAQ applies to SINAMICS G120C/CU240B-2/CU240E-2/CU250S-2/CU230P-2 delivered with firmware V4.7 SP9 HF1 (all communication protocol and safety variants).


Problem description

For SINAMICS G120C/CU240B-2/CU240E-2/CU250S-2/CU230P-2 with firmware V4.7 SP9 HF1, when using an MMC/SD card to upgrade or downgrade the firmware. After a drive power cycle, the red LED of RDY and BF are flashing every 2 seconds to wait for power cycle again.


Solutions

Solution 1: Card only used for firmware change not required to be installed permanently

Remove the MMC/ SD card from the CU after the firmware upgrading/downgrading.

When the upgrading or downgrading firmware is finished, at the point when you power off the drive, remove the MMC/ SD card, power on again, the drive will work properly.


Solution 2: MMC/SD card is required to be installed permanently for parameter storage only.

Remove the firmware files from the MMC/SD card after the firmware upgrading/ downgrading When the upgrading or downgrading firmware is finished, at the point when you power off the drive, delete the firmware files from the MMC / SD card, power on again, the drive will work properly.


Solution 3: MMC/SD card is required to be installed permanently for Firmware and parameter storage.

If you need to keep the MMC/SD card with firmware files in the drive all the time, please contact to Siemens Customer Support for further information.

Please create a Support Request: https://support.industry.siemens.com/My/ww/en/requests#createRequest


Affected Date ranges Serial numbers

XAK4 xx-xxxxx
XAK5 xx-xxxxx
XAK6 xx-xxxxx
XAK7 xx-xxxxx
XAK8 xx-xxxxx
XAK9 xx-xxxxx