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EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
EL 9000 B 15U/24U Series
1.7
Safety
1.7.1
Safety notices
Mortal danger - Hazardous voltage
•
Electrical equipment operation means that some parts can be under dangerous voltage.
Therefore all parts under voltage must be covered!
•
All work on DC connections must be carried out under zero voltage, i.e. DC input not
connected to a source and may only be performed by qualified and informed persons.
Improper actions can cause fatal injury as well as serious material damage.
•
Never touch AC cables or AC connectors and terminal directly after unplugging from
mains supply as the danger of electric shock remains!
•
Never touch the contacts on the DC input terminal directly after switching off the DC
input or disconnecting the source, because there still can be dangerous potential be-
tween negative DC input to PE or positive DC input to PE due to charged X capacitors!
•
Always follow 5 safety rules when working with electric devices:
•
Disconnect completely
•
Secure against reconnection
•
Verify that the system is dead
•
Carry out earthing and short-circuiting
•
Provide protection from adjacent live parts
•
The equipment must only be used as intended
•
The equipment is only approved for use within the connection limits stated on the product label.
•
Do not insert any object, particularly metallic, through the ventilator slots
•
Avoid any use of liquids near the equipment. Protect the device from wet, damp and conden-
sation.
•
For power supplies and battery chargers: do not connect loads, particularly such with low
resistance, to devices under power; sparking may occur which can cause burns as well as
damage to the equipment and to the user
•
For electronic loads: do not connect power sources to equipment under power, sparking may
occur which can cause burns as well as damage to the equipment and to the source.
•
ESD regulations must be applied when plugging interface cards or modules into the relative slot
•
Interface modules may only be installed or removed after the device is switched off. It’sn’t
necessary to open the device.
•
Do not connect external power sources with reversed polarity to DC input or outputs! The
equipment will be damaged.
•
For power supply devices: avoid where possible connecting external power sources to the DC
output, and never those that can generate a higher voltage than the nominal voltage of the device.
•
For electronic loads: do not connect a power source to the DC input which can generate a
voltage more than 120% of the nominal input voltage of the load. The equipment isn’t protected
against over voltage and may be irreparably damaged.
•
Never insert a network cable which is connected to Ethernet or its components into the mas-
ter-slave socket on the rear side of the device!
•
Always configure the various protecting features against overcurrent, overpower etc. for sen-
sitive loads to what the currently used application requires!
