127
2. Copy the LCD firmware file and the DSP firmware file into the USB flash
drive. The upgrade file needs to be placed in the root directory. Contact
CPS service for the latest firmware files.
3. Insert the USB flash drive into USB port on the inverter’s communications
board.
USB Port
OFF
ON
+12V
12VGND
RS485_B-
RS485_A+
485_GND
+12V
12VGND
RS485_B-
RS485_A+
RS485_GND
RS485_GND
RS485_A+
RS485_B-
P9
P6
P7
P8
S1
P1
OFF
ON
+12V
12VGND
RS485_B-
RS485_A+
485_GND
+12V
12VGND
RS485_B-
RS485_A+
RS485_GND
RS485_GND
RS485_A+
RS485_B-
P9
P6
P7
P8
S1
P1
Figure 6-21 USB Port for Firmware Upgrades
4. Using the password to enter the Setting menu and select Firmware
Update. Choose the firmware to be updated (LCD or DSP) and follow the
promts on the screen. See Figure 6-22.
5. When the update is successful repeat the process, if necessary, to upate
the next firmare (DSP or LCD). Should the update fail, return to step 4
when prompted and repeat the process.
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