Siemens SINAMICS S120 Getting Started page 12

Preface
Should there be any deviation from the requirements in the manual, appropriate actions (e.g.
measurements) must be taken to check/prove that the required level of operational reliability
and compliance with EMC limit values are ensured.
Spare parts
Spare parts are available on the Internet at the following address
(https://www.automation.siemens.com/sow?sap-language=EN).
Product maintenance
The components are subject to continuous further development within the scope of product
maintenance (improvements to robustness, discontinuations of components, etc).
These further developments are "spare parts-compatible" and do not change the article
number.
In the scope of such spare parts-compatible further developments, connector/connection
positions are sometimes changed slightly. This does not cause any problems with proper
use of the components. Please take this fact into consideration in special installation
situations (e.g. allow sufficient clearance for the cable length).
Use of third-party products
This document contains recommendations relating to third-party products. Siemens accepts
the fundamental suitability of these third-party products.
You can use equivalent products from other manufacturers.
Siemens does not accept any warranty for the properties of third-party products.
Ground symbols
Table 1
10
Symbols
Icon Meaning
Connection for protective conductor
Ground (e.g. M 24 V)
Connection for function potential bonding
Getting Started, 12/2018, 6SL3097-5AG30-0BP0