Maintenance
10
10.1 Safety instructions
If you have any questions, please contact the manufacturer, quoting the machine type and serial
number.
WARNING
Electric shock when live parts are touched
Death or serious injury can result when live parts are touched.
• Only work on electrical equipment if you are appropriately qualied.
• Always comply with the local national safety regulations when working on electrical
equipment.
Generally, six steps apply when establishing safety:
1. Prepare for shutdown and notify all those who will be aected by the procedure.
2. Disconnect the machine from the power supply.
– Switch o the machine.
– Wait until the discharge time specied on the warning labels has elapsed.
– Check that it really de-energized, from phase to phase and phase to protective conductor.
– Check that every auxiliary circuit is de-energized.
– Ensure that the motors cannot move.
3. Lock the motors so that they cannot make any inadvertent motion, which would generate
a voltage at the terminals.
4. Identify all other dangerous energy sources, e.g. compressed air, hydraulic systems or water.
5. Isolate or neutralize all hazardous energy sources, for example by closing switches,
grounding or short-circuiting, or closing valves.
6. Take measures to prevent reconnection of the energy sources.
7. Carefully ensure that the machine is completely locked and that you have the right machine.
After you have completed the work, restore readiness for operation by following the above
steps in the reverse order.
WARNING
Slipping on leaked oil
Leaked oil can result in slipping or falling and cause death or severe injury.
• Prevent oil from leaking.
• Absorb leaked oil immediately with a binding agent for oil or similar.
• Rough up the hazardous location.
• Mark the hazardous location.
SIMOTICS S-1FK2 synchronous motors for SINAMICS S120
Operating Instructions, 02/2022, A5E46089564B AD 93
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