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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
27
and
28
.
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
.
5.2 Re-establishment of frequency converter operation
1. Loosen the four screws in the terminal box cover, and remove the cover from the terminal box.
2. Remove the insulating tape, and separate one of the joints of motor conductors and supply conductor.
Push the insulating hose down over the motor conductors again.
3. Fit the motor conductors on the correct motor terminal: Blue/black to U1/W2, white/grey to V1/U2 and orange/
yellow to W1/V2.
Tighten them to 2.2 Nm
.
4. Fit the supply conductor to one of the supply terminals, and
tighten it to 2.2 Nm
.
5. Repeat steps 2 to 4 for the remaining two joints.
6. Fit the cover over the motor terminals.
7. Fit the cover over the supply terminals (pos. 284), and
tighten the screw to 7 Nm
.
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
03
91
22
34
07
TM
03
91
23
34
07
Fig. 27
Insulating the joint
Fig. 28
The joints placed in the terminal box
Note
It is important to check (and change, if necessary) the motor's direction of rotation in order to
ensure that the pump is not running backwards.
