NORD Drivesystems BU0500 - Manual (Page 16)

SK 500E – Users Manual for Frequency Inverters
16 BU 0500 GB-1013
NOTICE Leakage and residual currents
Due to their principle of operation (e.g. due to integrated mains filters, mains units and capacitor banks),
frequency inverters generate leakage currents. For the correct operation of the frequency inverter on a current-
sensitive RCD, the use of an all-current sensitive earth leakage circuit breaker (Type B) compliant with EN 50178
/ VDE 0160 is necessary.
Note Operation on TN- / TT- / IT- networks
The frequency inverters are suitable for operation on TN or TT networks as well as for IT networks with the
configuration of the integrated mains filter.
Note Maintenance
In normal use, frequency inverters are maintenance free.
The cooling surfaces must be regularly cleaned with compressed air if the ambient air is dusty.
In case of long-term shut-down or long-term storage, the capacitors must be re-formed (refer to "Technical Data").
Failure to do this will damage these components and will cause a considerable reduction of the service life -
including the immediate destruction of the frequency inverter.
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1.5 Certifications
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1.5.1 European EMC Directive
If the frequency inverter is installed according to the recommendations in this manual, it meets all
EMC directive requirements, as per the EMC product standard for motor-operated systems EN 61800-
3.
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1.5.2 UL and cUL approvals for frequency inverters (CSA)
All SK 500E frequency inverters include motor overload protection. Further technical details can be
found in Section 7.2.
NOTICE
"Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit protection
must be provided in accordance with the National Electric Code and any additional local codes."
The integral short-circuit protection does not provide branch circuit protection. Branch circuit protection must be
provided in accordance with the manufacturer's instructions, the "National Electric Code" and all additional local
regulations.
Note
“Use 75°C Copper Conductors Only" - “Anschluss von Kupferkabel mit einer Isolationsfestigkeit von mind. 75°C“
(betrifft ausschließlich Anschlussleitungen (Netz- / Motorkabel aber nicht Steuerleitungen))
„These products are intended for use in a pollution degree 2 environment“ - „Das Produkt ist für den Betrieb in
Umgebungen mit Verschmutzungsgrad 2 geeignet“
"Maximum Surrounding Air Temperature 40°C" - “Maximale Umgebungstemperatur 40°C”