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2.4.3 General Safety Guide Lines for EU Installations.
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Only qualified personnel should be allowed to specify, apply, install, operate, maintain or perform
any other function related to MMI products. Qualified persons are defined as follows: System
application and design engineers who are familiar with the safety concepts of automation
equipment. Installation, start-up, and service personnel who are trained to install and maintain
automation equipment. Operating personnel trained to operate automation equipment and trained
on the specific safety issues and requirements of the particular equipment.
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Before switching on the equipment, make sure that the voltage range for the equipment is correct.
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Emergency tripping devices in accordance with EN60204/IEC204 must be effective in all
operating modes of the automation equipment. Resetting the emergency off device must not
result in any uncontrolled or undefined restart of the equipment.
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Automation equipment and its operating elements must be installed so that unintentional
operation is prevented.
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Make sure that operating sequences interrupted by a voltage dip or power supply failure resume
proper operation when the power supply is restored. If necessary, the equipment must be forced
into the “emergency off” state.
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Install the power supply and signal cables so that inductive and capacitive interference voltages
do not affect automation functions.
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