Siemens SINAMICS G120X - Page 1089

Property Explanation
Safety Integrated An external safety device is necessary, e. g. F-PLC or Siemens Safety device
3SK2xxx.The higher-level control system must monitor the selection of STO and the feed‐
back from the converter.
"Safe Torque Off" safety function (Page 128)
STO fulfils the requirements of the following standards:
● SIL 3 according to IEC61508, part 1 to 3 (2010)
● PL e according to IEC61800-5-2 (2016)
● Category 3 according to ISO13849 part 1 (2015)
The function STO corresponds to stop category 0 according to IEC60204 (2005)
Response time: 20 ms
The response time of the Safe Torque Off function is the time between selecting the
function and the function becoming active.
Probability of failures:
● Probability of failures per hour: PFH, PFH
D
= 5×10
-8
1/h
PFH according to IEC 61800‑5‑2, PFH
D
according to IEC 62061
● Mean probability of failure for a low demand rate of the safety function according to
IEC 61508: PFD = 5×10
-3
Mission time: 20 years
You may not operate converters with integrated safety functions for longer than the mis‐
sion time. The mission time starts when the device is delivered. The mission time cannot
be extended. This is the case even if a service department checks the converter – or in the
meantime, the converter was decommissioned.
Degree of protection
● IP20/UL Open Type
● IP21/UL Open Type can be realized for converters FSA ... FSG, with an IP21 top cover
Maximum short-circuit current
(SCCR or Icc)
When using fuses: 100 kA rms
You can find the data for further overcurrent protection devices on the Internet:
Branch protection and short-circuit strength according to UL and IEC (https://
support.industry.siemens.com/cs/us/en/view/109762895)
Minimum short-circuit current 18 kA rms
The length of the connecting cable from the line to the converter may not reduce the
minimum short-circuit current.
Surrounding air temperature dur‐
ing operation
2)
● FSA ... FSG (with PROFINET interface)
-20 °C to +55 °C (a lateral clearance of 5 cm is required for FSA ... FSC with
surrounding air temperature > 50 °C), > 45 °C with derating
● FSA ... FSG (with USS or PROFIBUS DP interface)
-20 °C to +60 °C (a lateral clearance of 5 cm is required for FSA ... FSC with
surrounding air temperature > 50 °C), > 45 °C with derating
● FSH/FSJ
0 °C to 55 °C, > 45 °C with derating
Current derating as a function of the ambient temperature (Page 1093)
Relative humidity < 95% (non-condensing)
Installation altitude Up to 1000 m above sea level without derating
Above 1000 m with derating
Current derating as a function of the installation altitude (Page 1092)
Technical data
11.3 General converter technical data
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC 1087