T Series User Manual www.fox-ess.com P a g e | 23
sure the size of U-disk is under 32G,and the format is fat 16 or fat 32.
➢ Upgrading Steps:
Step1: Please contact our service support to get the update files, and extract it into your U-disk as
follows:
"update\ARM\10-300-11009-0x_T20K_Manager_Vx.xx";
"update\MASTER\10-300-11007-0x_T20K_Master_Vx.xx";
"update\SLAVE\10-300-11008-0x_T20K_Slave_Vx.xx";
Step2: Press the "Enter" key for 5 seconds to enter Off Mode. Then unscrew the waterproof lid and
insert U-disk into the "upgrade" port at the bottom of the inverter.
Step3: The LCD will show. Then press up and down to select the one that you want to upgrade and
press "OK" to confirm the upgrade.
Step4: After the upgrade is finished, the LCD will display "succeed"(only for DSP upgrades), please
remember to pull out the U-disk, screw the waterproof lid into place and press “Esc" to return to
the main interface. Then press the "Enter" key to exit Off Mode.
Warning!
Make sure the directory structure is strictly in accordance with above! Do
not modify the program file name, or it may cause the inverter to cease
working.
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