Siemens SINAMICS G120C DP User Manual

10.5.4 Firmware downgrade
Overview
When downgrading the 󹪝rmware, you replace the converter 󹪝rmware by an older version.
Requirement
• Your converter's 󹪝rmware is at least version V4.6.
• Converter and memory card have di󹪜erent 󹪝rmware versions.
• You have backed up your settings on the memory card, in an Operator Panel or in a PC.
Function Description
Procedure
1. Switch o󹪜 the converter power supply.
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2. Wait until all LEDs on the converter are dark.
3. Insert the card with the matching 󹪝rmware into the converter slot until it latches
into place.
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4. Switch on the converter power supply again.
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5. The converter transfers the 󹪝rmware from the memory card into its
memory.
The transfer takes between 5 and 10 minutes.
While data is being transferred, the LED RDY on the converter stays red.
The BF LED 󹪞ashes orange with a variable frequency.
6. At the end of the transfer, the LED RDY and BF slowly 󹪞ash red (0.5Hz).
Power supply failure during transfer
The converter 󹪝rmware will be incomplete if the power supply fails during the
transfer.
• Start again with Step 1 of these instructions.
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Corrective maintenance
10.5Firmware upgrade and downgrade
SINAMICS G120C Converters
414 Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK

Siemens SINAMICS G120C DP Specifications

General

Protection Rating	IP20
Frequency Range	0 to 650 Hz
Control Modes	V/f, sensorless vector control
Communication Interfaces	PROFIBUS DP
Ambient Temperature	-10 to +50 °C (without derating), -10 to +60 °C (with derating)
Overload Capacity	150 % rated current for 60 s, 200 % rated current for 3 s
Storage Temperature	-40 to +70 °C
Relative Humidity	5% to 95% (non-condensing)
Voltage Range	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Output Voltage	0 V to Supply Voltage