Safety
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3.6.2 Dangers from Electric Power
WARNING
Risk to life from stored charges!
Electric charges may be stored in electrical components even after the system has been
switched off and disconnected from the power supply. Contact with these components may
result in serious or fatal injury.
u Before working on the specified components, ensure that they have been completely
disconnected from the power supply.
u Allow 10 minutes to elapse in order to ensure that the internal capacitors have been fully
discharged.
WARNING
Risk to life from electrical shock
A life threatening shock may result when the housing is open during operation.
u Only qualified personnel should open the housing.
u Disconnect the device from the electrical power supply before opening the device. Use
a voltmeter to verify that the device is not under power!
u Be sure that the power supply cannot be reconnected without notice.
WARNING
Risk to life from residual electrostatic potentials!
Friction between material being conveyed may result in significant development of
electrostatic potential. Therefore, contact with parts immediately following the conveying
operation may be life-threatening.
u Potential equalisation must be ensured before making contact with parts, unless such
equalisation is provided by the customer.
Electrostatic discharge from friction may occur, resulting in an electric spark and loud bang.
Use ESD flooring and wear ESD shoes.
WARNING
Risk to life from contact voltage!
Absent or faulty protective earth conductor may result in contact voltage. This may pose a
risk of injury or death.
u Before the initial commissioning of the device, connect the main power supply to the
socket and verify the complete functionality of the protective earth conductor.
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