Artesyn AXP640, Installation And Use Manual, Page: 27 / 190

Safety Notes
AXP640 Installation and Use (6806800M24F)
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Injuries or Short Circuits
Blade or Power Supply
In case the ORing diodes of the blade fail, the blade may trigger a short circuit between input
line A and input line B so that line A remains powered even if it is disconnected from the power
supply circuit (and vice versa).
To avoid damage or injuries, always check that there is no more voltage on the line that has
been disconnected before continuing your work.
Expansion
System Overload
To avoid an overload of the system check the total power consumption of all components
installed (see the technical specification of the respective components). Ensure that any
individual output current of any source stays within its acceptable limits (see the technical
specification of the respective source).
Loss of Safety Compliance
Using of Additional Plug-in Blades
By using additional plug-in blades it may be possible that the system may be no more
compliant to safety and EMC regulations.
The system integrator has to ensure that the compliancy is guaranteed.
Exchanging PEMs
Personal Injury through Electric Shock and Burning
Touching the PEM power input terminals with metallic objects on your hands, wrists, or
hanging from your neck may lead to serious injuries like burns or amputations. Do not wear any
metallic attire or commodity on your hands, wrists, or hanging from your neck when working
at the power input terminals or power input cables. Be extremely careful when you use
electrically conductive tools near the PEMs.
Short Circuits or Personal Injury
Ensure that the power feeds you plan to remove or attach are powered off and cannot be
switched on while you are working.