Grundfos MGE F, Инструкция по эксплуатации

Страница: 23 / 32

English (GB)
23
6.1 Establishing emergency operation
1. Loosen the four screws in the terminal box cover, and remove
the cover from the terminal box.
2. Remove the three mains supply conductors from the supply
terminals, but leave the protective earth conductor in the PE
terminal. See fig.
18 .
3. Remove the cover over the motor terminals. See fig. 19 .
Unscrew the nuts from the motor terminals.
4. Connect the conductors as shown on the label on the cover
over the motor terminals. See fig. 20 . Use the screws from the
supply terminals and the nuts from the motor terminals. See
fig.
21 .
5. Pull the insulating hose around the motor conductors up over
the joint. Wind insulating tape or similar around the ends of
the insulating hose in order to fasten it over the joint. See figs.
22 and 23 .
6. Briefly start the motor, and observe the direction of rotation.
7. If the motor's direction of rotation is wrong, interchange two of
the supply conductors (phases).
8. Put the terminal box cover (pos. 164) back on, and fasten it
with the four screws (pos. 166). Tighten the screws to 7 Nm .
TM
07
67
27
2
52
0
TM
03
91
20
3
40
7
Fig. 18 Cover over the supply terminals Fig. 19 Cover over the motor terminals
TM
04
00
18
48
07
TM
03
91
21
34
07
Fig. 20 Emergency label on the cover over the motor terminals Fig. 21 Joining the motor conductors (two) and the supply
conductor
TM
0
3
9
12
2 3
407
TM
0
3
9
12
3 3
407
Fig. 22 Insulating the joint Fig. 23 The joints placed in the terminal box
It is important to check (and change, if necessary)
the motor's direction of rotation to ensure that the
pump is not running backwards.