NORD Drivesystems BU0540 - Manual (Page 11)

1 Overview
BU 0540 GB-1013 11
CAUTION Danger of burns
The heat sink and all other metal components can heat up to temperatures above 70°C.
Touching such components may cause local burns to the affected parts of the body (hands, fingers, etc.).
To prevent such injuries, allow sufficient time for cooling down before starting work - the surface temperature
should be checked with suitable measuring equipment. In addition, keep sufficient distance from adjacent
components during installation, or install protection against contact.
NOTICE Damage to the frequency inverter
For single phase operation (115/230V) the mains impedance must be at least 100µH for each conductor. If this is
not the case, a mains choke must be installed.
Failure to comply with this may cause damage to the frequency inverter due to impermissible currents in the
components.
NOTICE
EMC - Interference
The frequency inverter is a product which is intended for use in an industrial environment and is subject to sales
restrictions according to IEC 61800-3. Use in a residential environment may require additional EMC measures.
For example, electromagnetic interference can be reduced by the use of an optional mains filter.
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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