Objective : SINAMICS V20 Firmware Upgrading Process Overview : The Analogue input of V20 was updated from 10 bit to 12 bit in the FW version 3.51.06. So, V20 drive whose firmware version less than FW3.51.06 need to be updated to FW3.51.06 or higher. Note: It is mandatory to do parameter calibration after upgrading firmware from lower version to 3.51.06 or higher. If the V20 drive has already version 3.51.06 or newer version then it does not needed parameter calibration after firmware up gradation. The version information of V20 can be found in the parameter r0964. Parameter Description Values

r0964[0] Company(Siemens=42) 42 r0964[1] Product Type 8001 r0964[2] Firmware Version 350 r0964[3] Firmware date (yy) 2012 r0964[4] Firmware date (ddmm) 2806 r0964[5] Number of inverter Objects 1 r0964[6] Firmware Version 2400

From above it is clear that the firmware version is 3.50. so, it is mandatory to do calibration after upgrading to FW 3.51.06 or higher.

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Following is the process to update the SINAMICS V20 drive firmware to 3.51.06 or higher. Step 1: Copy the delivered “LM3_crc.rec”,”Im3_load.rec” and “sectstage.bin” file to SD/MMC. Step 2: Insert the SD/MMC card into the SINAMICS V20 Parameter Loader.

Step 3: Switch-off the V20 drive incoming AC power supply. Step 4: Plug-in the Parameter Loader into the SINAMICS V20 drive.

SINAMICS V20 Firmware Updating Process Page 3 of 5 S

Step 5: Press the white button to active the inverter. Updating starts automatically and the LED is lit up.

Step6: Observe the LED status as it gives the result of firmware updating process.

LED Firmware updation Description

Status Status

Continuously Lit In process Firmware updation is continue Flash at 0.5 Hz Success Firmware updation is successfully completed Flash at 0.2 Hz Fail Firmware updation is failed

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Following is the process to calibrate after updating SINAMICS V20 drive firmware to 3.51.06 or higher. Step1: After successful updation of SINAMICS V20 drive firmware ,remove the Parameter loader unit from drive. Step2: Switch-on the V20 drive incoming AC power supply. Step3: Set parameter P3950=1. Step4: Read the following parameters from the drive and note it down.

Parameter Value P3935[0] 508 P3936[0] 692 P3936[1] 356 P3903[0] 508 P3904[0] 900 P3904[1] 779 P3937 58 P3938 856

Step5: Calculate the calibration value by multiplying 4 to the above parameter values as below.

Parameter Calibration Value Set Value

P3935[0] 4*P3935[0] 2032 P3936[0] 4*P39360] 2768 P3936[1] 4*P3936[1] 1424 P3903[0] 4*P3903[0] 2032 P3904[0] 4*P3904[0] 3600 P3904[1] 4*P3904[1] 3116 P3937 4*P3937 232 P3938 4*P3938 3424

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Step6: Set the calibrated value in to the parameters as below. Parameter Value P3935[0] 2032 P3936[0] 2768 P3936[1] 1424 P3903[0] 2032 P3904[0] 3600 P3904[1] 3116 P3937 232 P3938 3424

Step7: Power off the drive. The setting will be applied in the next round power cycle.