Siemens SINAMICS G120 Hardware Installation Manual page 18

Introduction
STO with PM230 and CU240
The PM230 FSA ... FSC Power Modules have been technically revised. Together with CU240
Control Units from software version V4.7 SP3, they support the STO safety function.
You can identify the new series of Power Modules as a result of the article number. The article
numbers of the new Power Modules have a "G" instead of an "L" at the last but one position.
Otherwise, the article numbers are identical.
18
Power Module PM230, IP20 / Push-through technology (PT)
Hardware Installation Manual, 08/2016, A5E34331322B AB