Nederman FlexPAK DX, Инструкция по установке и обслуживанию

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FlexPAK DX
Control that TR1, see Figure 5 , item 2, is con-
nected to the correct voltage range and verify
its output voltage before using the unit.
Always replace worn, faulty or defective elec-
trical components with new original parts.
For the power circuit, control circuit and terminal con-
nection diagrams, see the electrical diagrams that
came with the unit. The unit is not to be connected
to the supply voltage via plug and socket but shall be
permanently connected. Ensure that all electrical con-
nections are secured properly.
5.6 Suppression system installation
Information regarding installation of the act-
ive elements and control system can be found
in the suppression system manual. Work is only
to be carried out by personnel that are certified
for installing suppression systems.
An explosion detection signal from the suppression
system must be connected to FlexPAK DX terminal
42–43, see the included electrical diagrams.
Other suppression system signals must be taken in-
to consideration and connected to suitable warnings
and/or notification systems for the users.
5.7 General requirements
The following items are minimum requirements to en-
sure the proper function and required level of protec-
tion with regards to equipment category, the EC dir-
ectives and standards listed in the Declaration of Con-
formity:
• Take proper measures to avoid all types of electrical
stray currents to and from the duct system and elec-
trical wiring.
• Check that the input voltage and frequency to the
unit are correct.
• Operator controls shall be easily accessible.
• The need for additional emergency stop buttons
and their placement shall be analyzed according to
EN ISO 13850.
• A lightning conductor is to be installed if the unit is
installed outdoors. The installation of the lightning
conductor is to follow national and local regulations
for such a protection device.
5.8 Automatic bin emptying function
See the PLC Settings Manual.
5.9 Machining chips and swarf extrac-
tion
See the PLC Settings Manual.
5.10 Pneumatic filter cleaning valve
See the PLC Settings Manual.
5.11 ATEX Duct Isolation Valve
See the PLC settings Manual.
5.12 Ground check measurement
All metal parts of the unit are to be grounded.
The system is to have two independent ground
connections; one on the FlexPAK DX (GND1)
and the other one on the duct system. Follow
the procedure below to ensure this.
The duct system (inlet and outlet) is NOT to be
connected during the measuring.
Check that the unit is properly grounded after both
the main installation and regular maintenance work. If
a component is removed and refitted, the ground con-
nection is to be verified.
See the electrical diagrams. The ground connection
is measured between GND1, terminal PE, and the fol-
lowing components on the unit:
1 Spring in filter bags, see
Figure 4A , item 3. Meas-
ure when unassembled.
2 Explosion suppression device, see figures, Fig-
ure 7 and Figure 2A , Figure 2B and Figure 2C :
• The pipe of the explosion suppression device,
Figure 7 item A.
• A screw on the explosion venting panel, Figure 7
item B.
• A screw on the quenching device.
3 Inlet, see Figure 4C , item 21.
4 Collector bin, see Figure 4A , item 1.
5 Fan, see Figure 4A and Figure 4B , item 13.
To measure the ground connection:
1 Disconnect mains ground from GND1.
2 Measure between all components according to
the list above and GND1. The value is to be ≤100
ohms.
3 Measure and check whether there is contact
between the incoming duct system and the dis-
connected incoming mains ground. The value is to
be ≤105 ohms except for the spring in filter bags,
Figure 4A , item 3, where the limit is 1 mega-ohm.
4 Connect the incoming duct system. Ensure that
there is a second ground connection between the
duct system and the unit and that it is properly
grounded to the unit.
1 Measure and check whether there is contact
between GND1 and the external mains ground
(≤100 ohms).
5 Reconnect mains ground to GND1.
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