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3.5 Main components
EN
Figure 3,
Figure 4
and
ponents of the unit:
1
Connection duct from the dust extractor to the in-
let silencer, see Figure 3.
2
Control panel, see
3
Frequency converter, see
4 Emergency switch, see
5
Frequency converter cooling air filter, see
and Figure 4.
6
Cooling valve, see
7
High-pressure side channel fan, with pump char-
acteristic, see
Figure 3
8 PT100 sensor, see Figure 4.
9
Outlet silencer after fan, see Figure 4.
10 Cooling air hose from the frequency converter
cabinet, see
Figure 4
11 Inlet silencer before the fan, see
ure 4.
12 Pressure sensor, see Figure 4.
13 Acoustic enclosure, see Figure 4.
3.6 Connections
The exhaust air duct is to be routed straight
and as short a distance as possible.
The unit is CE-marked. Connections to the unit,
initial start-up and maintenance are to be car-
ried out according to the product manuals.
Equipment such as cables and hoses are not supplied
and are to be obtained locally.
Figure 9
shows the normal connections to the unit.
They are as follows:
1
Inlet duct, Ø 100 mm.
2
Exhaust air duct, Ø 160 mm (for lengths <12 m).
3
PS cable from valves at workstations.
4 Incoming 3-phase power supply with a Protective
Earth (PE) cable.
5
Compressed air supply, Ø 6 mm nylon hose.
6
Compressed air valve, size G1/4" or G1/2".
7
Water and dirt-trap. The compressed air supply is
to be clean and dry.
8 Maintenance switch according to standard.
9
Power cable to the unit.
3.7 Start and control unit
The unit has a start and control unit, see Figure 7. The
start and control unit has the following components:
1
Transformer TR1, 60 W.
2
Connection block for the transformer TR1.
3
Terminals for external emergency stop.
16
Figure 5
show the main com-
Figure 3
and Figure 4.
Figure 3
and Figure 4.
Figure 3
and Figure 4.
Figure 3
Figure 3
and Figure 4.
and Figure 4.
and Figure 5.
Figure 3
and
FlexVAC
4 Vacuum setpoint switch.
5
Safety relay.
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
Fig-
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.
Figure 4
shows the cooling air hose that im-
proves the cooling of the frequency converter.
For parameter settings in the frequency con-
verter, 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 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.
4 Accessories
The FlexVAC 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
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