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All about FCM 300
•
EN 61000-3-2: Limits for harmonic current
emissions (equipment input current ≥ 16 A)
•
EN 61000-3-4: Limits for harmonic current
emissions (equipment input current ≤ 16 A)
Basic standards, immunity
•
EN 61000-2-4 (IEC 61000-2-4):
Compatibility levels
4
4
Simulation of voltage and frequency fluctuations,
harmonics and commutation notches on the
power line.
•
EN 61000-4-2 (IEC 61000-4-2): Electrostatic
discharge (ESD)
Simulation of electrostatic discharge.
•
EN 61000-4-4 (IEC 61000-4-4): Fast transients, burst
5/ 50 nS
Simulation of transients caused by switching of
contactors, relays or similar devices.
•
EN 61000-4-5 (IEC 61000-4-5):
Surges 1.2/ 50 μS.
Simulation of transients caused by e.g. lightning
that strikes near an installation.
•
EN 61000-4-3: (IEC 61000-4-3):
Radio-frequency electromagnetic field. Amplitude
modulated.
Simulation of interference caused by radio
transmission equipment.
•
EN 61000-4-6: (IEC 61000-4-6):
RF common mode.
Simulation of the effect from radio-transmitting
equipment connected to connection cables.
•
ENV 50204:
Radio-frequency electromagnetic field. Pulse
modulated.
Simulation of interference caused by GSM mobile
phones.
General aspects of EMC emissions
For high frequency shielding, screened cables used for
Profibus, standard bus, control cables and signal interface
must in general be connected to the enclosure at both
ends.
General aspects of EMC immunity
If there are problems with low frequency interference
(ground loops), screened cable used for Profibus, standard
bus, control cables and signal interface can be left open at
one end.
84
®
VLT
DriveMotor FCM Series
4.1.25 Aggressive Environments
In common with all electronic equipment, a VLT frequency
converter contains a large number of mechanical and
electronic components, all of which are vulnerable to
environmental effects to some extent.
WARNING
The VLT frequency converter should not therefore be
installed in environments with airborne liquids, particles
or gases capable of affecting and damaging the
electronic components. Failure to take the necessary
protective measures increases the risk of stoppages, thus
reducing the life of the VLT frequency converter.
Liquids can be carried through the air and condense in the
VLT frequency converter. In addition to this, liquids may
cause corrosion of components and metal parts.
Steam, oil and salt water may cause corrosion of
components and metal parts.
In such environments, equipment with enclosure rating ≥
IP54 is recommended.
In environments with high temperatures and humidity,
corrosive gases such as sulphur, nitrogen and chlorine
compounds will cause chemical processes on the VLT
frequency converter components. Such chemical reactions
will rapidly affect and damage the electronic components.
NOTICE
Mounting VLT frequency converters in aggressive
environments will increase the risk of stoppages and
furthermore considerably reduce the life of the
converter.
Before the installation of the VLT frequency converter, the
ambient air should be checked for liquids, particles and
gases. This may be done by observing existing installations
in this environment. Typical indicators of harmful airborne
liquids are water or oil on metal parts, or corrosion of
metal parts.
Excessive dust particle levels are often found on instal-
lation cabinets and existing electrical installations.
One indicator of aggressive airborne gases is blackening of
copper rails and cable ends on existing installations.
4.2.1 List of Warnings and Alarms
The table gives the different warnings and alarms, and
indicates whether the fault locks the FC motor. After Trip
locked, the mains supply must be cut and the fault must
be corrected. Reconnect the mains supply and reset the FC
motor before being ready. Wherever a cross is placed
®
MG03BA02 - VLT
is a registered Danfoss trademark
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