Siemens SINAMICS S120 Commissioning Manual page 11

Safety notices
Danger of death when live parts are touched
Touching live parts can result in death or severe injury.
• Only work on electrical equipment if you are qualified to do so.
• When carrying out any work, always comply with the country-specific safety rules.
Generally, six steps apply when establishing safety:
1. Prepare for shutdown and inform team members who will be affected by the procedure.
2. Switch off the machine so that it is in a no-voltage state.
3. Identify all other dangerous energy sources, e.g. compressed air, hydraulic systems or
4. Isolate or neutralize all hazardous energy sources. For instance, by closing switches,
5. Lock out all energy sources so that they cannot be switched on again.
6. Make sure that the machine is completely locked out ... and that you have the right
After you have completed the work, restore the operational readiness in the inverse
sequence.
Commissioning Manual
Commissioning Manual, (IH1), 01/2013, 6SL3097-4AF00-0BP3
DANGER
– Switch off the machine.
– Wait until the discharge time specified on the warning labels has elapsed.
– Check that it really is in a no-voltage condition, from phase conductor to phase
conductor and phase conductor to protective conductor.
– Check that all auxiliary circuits are also in a no-voltage state.
– Ensure that the motor cannot move.
water.
grounding or short-circuiting or closing valves.
machine!
Preface
9