Nederman FlexPAK 800 DX, User Manual

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FlexPAK 800/1000 DX
23
EN
3.10 Frequency converter
WARNING! Risk of electric shock.
The frequency converter is not to be opened until 5 minutes after the supply voltage has
been disconnected. The capacitors inside the converter hold a very dangerous voltage until
they have discharged themselves.
CAUTION! Risk of equipment damage.
• Do not adjust any parameters in the frequency converter without written authorisation
from the person responsible for this product. See the Declaration of Conformity. Any
unauthorised adjustment may void the warranty.
• The unit is not to be started if the cooling hose has been removed.
NOTE! Figure 4C shows the cooling air hose that improves the cooling of the frequency
converter.
NOTE! For parameter settings in the frequency converter, see the ‘FlexPAK Frequency
Converter Parameter Table’ that is a separate document included with the unit.
The frequency converter controls the unit’s motor so that it operates efficiently, as well
as maintaining the unit’s vacuum level to help prevent a dangerous underpressure from
developing. The manual for the frequency converter is enclosed.
4 Accessories
The FlexPAK 800/1000 DX start and control unit is prepared for the connection of
Nederman accessories and customer connections.
The installation of accessories, extra equipment, and functions is described in the manual
for each product and according to the electrical diagrams that came with the unit. Consult
your local Nederman representative for available accessories.
The most common accessory is a PS cable, which allows remote start/stop signalling from
the valves on the duct system. See also Chapter ‘6 PLC messages’ and Chapter ‘7 PLC
settings’ for more information about messages and settings for accessories, and customer
connections.
5 Use
WARNING! Explosion risk.
• Do not collect material that may cause ignition or blocking. It is strictly prohibited to
collect material that may undergo dangerous chemical or thermal reactions and/or self-
ignite.
• The filter should not be used for filtering fumes from welding processes.
• Do not make any changes to this product without consulting Nederman. Adding a
relief duct or changing the spacing or length of filter elements affects the calculations
according to EN 14491.
• Clean the unit and the area around it of any spilled combustible dust before starting the
unit