Operation
8
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions (Page 13)
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
8.1 Safety instructions for operation
Risk of explosion when the bridging across the insulated bearing is removed
If the machine was factory-fitted with bridging of the insulated drive-end bearing, this bridging
must not be removed. The consequence of doing so would be to allow potential differences to
develop between the rotor and the grounded machine. This can cause the generation of sparks,
which especially in an explosive atmosphere can ignite the surrounding gas. Explosions can
occur. There is also a risk of an electric shock. Death, serious injury, or material damage will
result.
● Do not disconnect the bridging of the bearing insulation at the drive end during operation.
● Comply with the plates on the machine relating to bearing insulation and possible bridging
options.
Risk of injury due to rotating parts
Rotating parts are dangerous. Touch protection against rotating parts is no longer guaranteed
if covers are removed. Touching rotating parts can result in death, serious injury or material
damage.
● Carefully ensure that all of the covers are closed while operational.
● First switch off and disconnect the machine if you must remove covers. Comply with the
"Five safety rules":
● Only remove the covers when the rotating parts have come to a complete standstill.
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
Operating Instructions 06/2018 75
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