Nederman FlexPAK Standard, User Manual, Page: 24 / 369

FlexPAK
EN
6 Transformer primary fuses F2 and F3.
7 Programmable Logic Controller (PLC).
8 Data Unit 2 (DU2), I/O module.
9 AM 2 PT100, temperature sensor input expansion
module.
10 Filter cleaning/test start button.
11 Standby/Running button, which is the On/Off but-
ton.
12 Emergency switch.
13 Terminals: X1: 1-80.
14 Fuse for 24 V DC accessory supply. Fuse F5.
15 Fuse for Pilot Signal (PS) cable. Fuse F4.
Fuse for Pilot Signal (PS) cable. Fuse F4, 1 A fast.
16 Terminals Protective Earth (PE).
3.8 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 fre-
quency converter without written author-
isation 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 4 shows the cooling air hose that im-
proves the cooling of the frequency converter.
The frequency converter controls the unit’s motor so
that it operates efficiently and maintains the unit’s
vacuum level to help prevent dangerous negative
pressure from developing and the unit overheating.
The manual for the frequency converter is enclosed.
NOTE!
For parameter settings in the frequency con-
verter, see the ‘FlexPAK Frequency Converter
Parameter Table’ that is a separate document
included with the unit.
4 Accessories
The FlexPAK 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 represent-
ative for available accessories.
The most common accessory is a PS cable, which al-
lows 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 cus-
tomer connections.
5 Use
WARNING! Explosion risk
• Do not collect material that may cause igni-
tion or blocking. It is strictly prohibited to col-
lect material that may undergo dangerous
chemical or thermal reactions and/or self-ig-
nite.
WARNING! Risk of electric shock
• Personnel operating FlexPAK is to pay special
attention to avoiding discharge of static elec-
tricity. The requirements for the safe use and
handling of combustible dust are described in
the explosion protection document. All per-
sonnel are to be informed.
WARNING! Risk of personal injury
• Use suitable protective equipment: goggles,
ear protection and a protective mask.
• A high vacuum system creates a powerful
suction that may cause serious eye injury
or hearing impairment. Persons who will be
using FlexPAK, or may come in contact with
FlexPAK, are to be informed about this risk.
• Never look into the exhaust air duct. Debris
and particles coming out of the outlet may
cause eye injury.
• Use proper protective equipment when risk-
ing exposure to dust.
• Never operate the unit without a plastic sack
in the dust bin if the dust is hazardous.
• The outlet silencer and fan may reach high
temperatures during normal operation.
• The standard unit is not suitable for the ex-
traction of hazardous materials. Instead, the
DX model should be used.
CAUTION! Risk of equipment damage
Read and follow all instructions in the Installa-
tion and Service Manual before use.
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