Schaeffler MF-Generator-2.5-10kW Manual Del Usuario página 9

5. Installation and commissioning
5.1 Installation
1. Remove the packaging and place the generator on a stable,
level non-ferrous surface. If the device is supplied with a
trolley (optional), ensure that the castors are locked when the
trolley is not being moved.
2. Ensure that there is at least 20 cm clearance around the
device in order to ensure good ventilation and cooling of
the generator.
3. Check the connection voltage and current on the basis of the
ID plate on the machine:
10kW 22kW
400V / 16A 400V / 32A
450V / 14A 450V / 30A
500V / 12A 500V / 28A
600V / 10A 600V / 23A
4. Fit a proper plug if the mains lead does not have one or
connect the machine to the electricity grid by means of a
permanent connection. Connect 3x phase and 1x ground.
5. Check the power supply and inductor cables for damage.
6. Ensure that the power supply and inductor cables cannot
come into contact with the workpiece to be heated. Insert the
plug in a socket outlet with earth connection.
7. Connect the temperature sensor by inserting the plug into the
contra-plug at the front of the generator. Make sure that the –
and + of the plug correspond to that of the contra-plug.
8. Switch on the main current by turning the main current switch
from "0" to "1".
9. Once the machine has been switched on, the LCD touch
screen lights up showing the welcome screen, followed by the
main menu. If no inductor has been connected yet, the red
control lights at the front light up, while the lights in the signal
tower will be blinking. This "breakdown" can be reset using
the red stop button ("0") at the front once an inductor has
been connected.
10. The MF Generator is now ready for use.
6. Inductors
NOTE!
The inductors are always labelled with a maximum operating
temperature and maximum power. Do not use the inductors
beyond this maximum temperature and/or maximum power.
This will prevent injury to persons and damage to equipment.
6.1 Inductor models
The scope of supply of a Schaeffler medium-frequency generator
may comprise:
Fixed inductor
This type is generally used for workpieces of the same design
that are frequently encountered and have to be heated. It is also
frequently used for relatively small workpieces where a flexible
inductor cannot be employed.
The versions can vary from an inductor that heats the workpiece
from inside a bore to a variant that heats the workpiece from the
outside. Fixed inductors are tailor-made and designed in principle
for 1 type of workpiece. If the dimensions of several workpieces
are very similar, it is sometimes possible to use 1 inductor for
several workpieces.
Fixed inductors are generally equipped with inductor recognition
and overheating protection.
Schaeffler Technologies
44kW
400V / 63A
450V / 59A
Example of a fixed inductor that is placed around the workpiece.
500V / 55A
600V / 45A
Example of a fixed inductor that is inserted into the bore of
a workpiece.
An application of a fixed inductor for removing bearing rings from
the wheel shaft of a railway wagon is described below.
The rings are quickly heated to approx. 120°C. Due to the
relatively low penetration of the medium-frequency induction
field, the rings are heated faster than the shaft and can be easily
pushed off the shaft.
The bearing rings can also be heated again for fitting using the
same inductor.
Flexible inductor
A flexible inductor is a special cable that can be wrapped around
a workpiece like a coil. This inductor type thus offers a great deal
of freedom in its field of application.
This type of inductor is available in various lengths with different
temperature and power classes.
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