Siemens SINAMICS G120C 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.

/('2))

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.

4. Switch on the converter power supply again.
%)
5'<

PLQ

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.
5'<
%)

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 Specifications

General

Communication Interfaces	PROFINET, PROFIBUS, USS, Modbus RTU
Protection Class	IP20
Ambient Temperature	-10°C to +50°C
Storage Temperature	-40°C to +70°C
Power Range	0.55 kW to 132 kW
Voltage Range	380 V to 480 V
Output Voltage	0 V to Supply Voltage
Frequency Range	0 Hz to rated output frequency
Control Modes	Vector control with encoder
Protection	Overload, overvoltage, undervoltage, short circuit, ground fault
Relative Humidity	5% to 95%, non-condensing
Altitude	Up to 2000 m without derating