General safety informations and precautions
The following safety precautions are intended as a general guideline for using the frequency in-
verter together with other equipment. These precautions must always be observed in the de-
sign, installation and operation of all control systems.
E
CAUTION:
All relevant electrical and physical specifications must be strictly observed and
maintained for all the frequency inverters in the installation.
The load used should be a three-phase induction motor only. Connection of any
other electrical equipment to the inverter output may damage the equipment.
FR-E 500 EC
5
P
DANGER:
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Observe all safety and accident prevention regulations applicable to your specific
application. Installation, wiring and opening of the assemblies, components and
devices may only be performed with all power supplies disconnected.
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Assemblies, components and devices must always be installed in a shockproof
housing fitted with a proper cover and protective equipment.
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Devices with a permanent connection to the mains power supply must be inte-
grated in the building installations with an all-pole disconnection switch and a
suitable fuse.
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Check power cables and lines connected to the equipment regularly for breaks
and insulation damage. If cable damage is found, immediately disconnect the
equipment and the cables from the power supply and replace the defective ca-
bling.
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Before using the equipment for the first time check that the power supply rating
matches that of the local mains power.
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Residual current protective devices pursuant to DIN VDE Standard 0641 Parts 1–3
are not adequate on their own as protection against indirect contact for installa-
tions with frequency inverter systems. Additional and/or other protection facili-
ties are essential for such installations.
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EMERGENCY OFF facilities pursuant to VDE 0113 must remain fully operative at
all times and in all control system operating modes. The EMERGENCY OFF facility
reset function must be designed so that it cannot cause an uncontrolled or unde-
fined restart.
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You must also implement hardware and software safety precautions to prevent
the possibility of undefined control system states caused by signal line cable or
core breaks.
