Grundfos 384-511 Montage- Und Betriebsanleitung Seite 10

Installation sketch for the electrical servomotor
Fig. 4 Installing the servomotor (using the example of a DMH pump)
3a 3b
Fig. 5 Coupling
Item Description
1 Pump
2 Adjusting spindle (grooved dowel)
3 Coupling
4 Lantern
5 Screw
6 Nut and intermediate disk
7 Scale ring
8 Grub screw
9 Servomotor
Fitting the servomotor to the lantern
1. Push the coupling section (3c) onto the shaft of
the servomotor (9) and screw the grub screw (3d)
in loosely.
2. Use four nuts and intermediate disks (6) to fix the
lantern onto the servomotor's grub screws.
10
5
4x
4x
8
7
3a
1 2
3c 3d
6
4 3c, 3d
3b
Fitting the servomotor and lantern to the pump
1. For DMX: Attach the front plate supplied.
2. Fit the coupling section (3a) onto the adjusting
spindle (2).
3. Hold the servomotor and lantern on the pump.
4. Insert the scale ring (7) and coupling section (3b)
(carrier) through the side of the lantern. Push one
coupling section (3b) onto the other coupling
section (3a) so it is in the correct position (see
fig. 4) and hold it in place with one hand.
The spindle must not rotate during this
Caution
process.
5. Turn coupling section (3c) on the shaft so that it
engages in the groove on coupling section (3b).
6. Use the grub screw (3d) to fix the coupling
section (3c) onto the shaft of the servomotor.
7. Fit the lantern using three screws (DMX) or four
screws (DMH) (5).
8. Match up the 0 % position of the scale ring (7)
with the marking pin on the lantern and tighten
the grub screw (8).
Connecting and commissioning the servomotor
Establish the servomotor's electrical connections as
described in section 9. Electrical
Commission the pump and servomotor, observing
the information contained in the instruction manual;
see also section 10. Commissioning.
9
connections.