Safety Notes; Qualified Personnel; The Five Safety Rules - Siemens SINAMICS S120 Operating Instructions Manual

Safety notes

In the individual chapters of this document, you will find safety instructions that must be obeyed
absolutely, for your own safety, to protect other people and to avoid damage to property. Pay
attention to the following safety instructions for all activities on the inverter.
1.1

Qualified personnel

The product/system described in this documentation may only be operated by personnel
qualified for the specific task in accordance with the relevant documentation for the specific
task, in particular its warning notices and safety instructions. Because of their training and
experience, qualified personnel can recognize any risks involved with handling these products/
systems and avoid any possible dangers.
1.2

The five safety rules

For your personal safety and to prevent material damage when carrying out any work, always
observe the safety instructions and the following five safety rules, according to EN 50110‑1
"Dead working". Apply the five safety rules in the sequence stated before starting work.
Five safety rules
1. Disconnect completely.
Disconnect the auxiliary circuits, for example anti-condensation heating.
2. Secure against reconnection.
3. Verify absence of operating voltage.
4. Carry out earthing and short-short-circuiting.
5. Provide protection against adjacent live parts.
To energize the system, apply the measures in reverse order.
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A
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