Start And Control Unit - Nederman E-PAK 500 Manual De Instrucciones

6. High-pressure side channel fan.
7. Outlet silencer.
8. Outlet.
Main filter.
9.
10. Inlet.
11. Collector bin with plastic bag.
NOTE!
Never use the unit without the plastic bag! Use Nederman original bags only.
12. Acoustic enclosure.
5.1

Start and control unit

E-PAK 500 has a start and control unit, see Figure 8. For information about the different
terminals, see the terminal connection diagram in Figure 19.
The start and control unit has the following components:
1. Transformer (TR1).
The transformer is a multi-transformer with terminals for several different supply voltages,
marked on the upper side of the transformer.
NOTE!
Ensure that the connection matches the actual supply voltage. The secondary
voltage is always 24 V AC.
2. Reset relay (K5).
3. Transformer, primary fuses F2 and F3, both 6 A.
4. Timer for Y/D switching (K4T).
5. Y-contactor (K3).
6. D-contactor (K2).
7. Main contactor (K1).
8. Motor overload relay with manual reset button (S1F).
9. Grounding cables.
10. Emergency switch for 3-phase supply.
11. Terminals 1 and 2 for 24 V AC accessory supply. Fuse F5 on terminal 1, 1 A, fast.
12. Terminals 3 and 4 for the Pilot Signal (PS) cable. Fuse F6 on terminal 3, 1 A, fast.
NOTE!
Use a jumper on terminals 3–4 if a PS cable is NOT used.
13. Other terminals required by some accessories, all 24 V AC.
14. Transformer secondary fuse F4, 4 A, slow.
15. Filter Cleaning Relay (FCR). Normal settings: T
16. Start/Stop Relay (SSR) for automatic start and stop by means of a PS cable. Normal
setting=10 minutes.
17. Duty/Idle Relay (DIR) for automatic switching to idling mode. Normal setting
=30 seconds.
For details about fuses and settings for the overload relay, see
Section '4.3 Technical and electrical data'.
5.2 Accessories
The installation of Nederman accessories for E-PAK 500 is described in the manuals for each
product. Consult your local Nederman representative for available accessories.
=4 s. T =1 h.
on off
E-PAK 500 EN
23