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Operation
During operation, frequency converters can have – depending on their type of protection –
electrically charged, uncovered, and possibly even moving or rotating parts, as well as hot
surfaces.
The device is charged with dangerous voltage for up to 5 minutes after being switched off.
Opening the device or removing the covers or the operating unit is not permitted until 5 mi-
nutes after the voltage to the device has been switched off. Before switching on the power
supply voltage all covers need to be reattached.
Even if the motor is at a standstill (for instance because of electronic blockage, blocked drive
or output terminal short circuit) the power cable terminals, motor terminals and terminals for
the brake resistor may still carry dangerous voltages. A motor standstill does not mean that
there is a galvanic separation from the mains.
Notice
, under certain settings, the converter can start up automatically when switched on
from the mains side.
Systems into which the frequency converters are installed must, if necessary, be equipped
with additional monitoring and protective devices according to the relevant safety regulations,
i.e. laws for technical tools and appliances, accident preventions regulations, and so forth.
There is a risk of serious injury for persons or material damage if required covers are removed
without authorisation, if the device or its components are used improperly, or if installed or
operated incorrectly.
Electrically charged parts and line connections must not be touched directly after frequency
converters are disconnected from the supply voltage, as the capacitors may be charged.
Observe the corresponding signs about this on the frequency converters.
During operation all covers must be kept closed.
The frequency converter is maintenance-free under normal operating conditions. If the air is
dusty, the cooling surfaces should be cleaned regularly with compressed air.
WARNING! DANGER TO LIFE!
The power pack may still be charged with voltage for up to 5 minutes after being switched
off from the mains. Converter terminals, motor feeder lines and motor terminals may carry
voltage.
Touching open or exposed terminals, lines and device parts can cause serious injuries
and even death!
CAUTION
Children and the general public are prohibited from accessing the device.
The device may be used only as intended by the manufacturer. Unauthorised modifications
and use of spare parts and auxiliaries that are not sold or recommended by the manufac-
turer of the device can cause fires, electrical shocks and injuries.
Store these operating instructions where they are easily accessible and place them in
every user's hands.
The heat sink and other metallic parts can reach temperatures of more than 70 °C.
Keep sufficient space to neighbouring components.
When working on the components allow for sufficient cooling time.
Warning:
This is a product of the limited sales class acc. to IEC 61800-3. In a residential environ-
ment this product can cause high-frequency interferences, in which case the user can be
required to take suitable measures.
A suitable measure would be the employment of a recommended line filter.
