Installation; General Notes; Retrofitting A Dosing Pump With An Electrical Servomotor - Grundfos 384-511 Instrucciones De Instalación Y Funcionamiento

9. Installation

9.1 General notes

Warning
It is a basic fact that certain parts will carry
a dangerous voltage whenever electrical
devices are operated. Only electricians or
trained persons instructed and supervised
by a specialist electrician may carry out
work on electrical installations or
equipment and the relevant
electrotechnical rules must be observed.
Warning
When undertaking installation,
commissioning and testing work, all
applicable safety and accident prevention
regulations must always be observed.
Warning
Before you start any (installation) work of
any kind on the drive, make sure that all
affected machines/installations are
switched off.
It is essential that you read this instruction
Note
manual prior to carrying out installation
and commissioning.
Warning
The servomotor may only be fitted by a
qualified specialist.
If a pump is ordered together with a
servomotor, the servomotor is fitted onto
Note
the dosing pump so that it is ready for
connection.
9.2 Retrofitting a dosing pump with an
electrical servomotor
Warning
When retrofitting a dosing pump with an
electrical servomotor, you must observe
the instructions and warnings contained in
section 10. Electrical
11. Commissioning
12. Operation.
12
connections, section
and section
Scope of delivery of the electrical servomotor
Lantern, front plate, scale ring with screw, coupling
(three parts) with two grub screws. Holding screws
for lantern and servomotor.
Required tools
Hexagon socket wrench 2 mm, 2.5 mm, 5 mm,
screwdriver
Checking the 0 % position
The servomotor is set to the 0 % position prior to
delivery. However, for safety's sake this 0 % position
must be checked and, if necessary, corrected.
For a servomotor with reversing potentiometer:
1. Connect the voltage supply for direction
"close/min." as shown in the connection chart;
see section 10.2 Servomotor with reversing
potentiometer.
2. Switch on the mains.
3. The servomotor moves to the 0 % position.
4. Disconnect the mains and remove the mains
cable.
For a servomotor with analogue control:
1. Connect the mains cable as shown in the
connection chart; see section
with analogue control.
2. Switch on the mains.
3. Set the service switch to the "Manual" position.
4. Push the manual adjusting switch towards "-"
until the limit switch disables the servomotor.
5. Reset the service switch to the "Auto" position.
6. Disconnect the mains and remove the mains
cable.
For all servomotors:
1. Connect the pump to the electrical mains.
2. Switch on the mains.
3. Turn the pump's stroke adjustment button to
the 0 % position.
4. Switch off the mains.
Removing the pump's front plate
1. Remove the cap from the adjustment button.
2. For DMX: Unscrew the locking screw on the side
of the adjustment button.
3. Remove the holding screw and pull the
adjustment button straight out.
– Make sure that you do not alter the
0 % position.
4. Remove the front plate.
10.3 Servomotor