Schaeffler MF-Generator-3.0-10kW Manual Del Usuario página 36

THeatsink PCB 1 Temperature of IGBTs of PCB 1 too low.
too low This can only occur if the ambient
temperature is below -10°C.
■ Wait until the (ambient) temperature
has risen again.
THeatsink PCB 2 Temperature of IGBTs of PCB 1 too low.
too low (with 44 This can only occur if the ambient
kW generators temperature is below -10°C.
■ Wait until the (ambient) temperature
only)
has risen again.
Udc of PCB 1 too Input voltage (DC) of chopper PCB 1 is too
low low.
■ Have an electrical engineer check
whether the generator is still connected
to the 3 phases of the grid. Also have
him check whether all three phases
still have voltage. A grid fuse may have
tripped.
Udc of PCB 2 too Input voltage (DC) of chopper PCB 2 is too
low (with 44 kW low.
■ Have an electrical engineer check
generators only)
whether the generator is still connected
to the 3 phases of the grid. Also have
him check whether all three phases
still have voltage. A grid fuse may have
tripped.
Upower of PCB 1 (Control) voltage of pcb(s) too low. Contact
too low your supplier.
Upower of PCB 2 (Control) voltage of pcb(s) too low. Contact
too low (with 44 your supplier.
kW generators
only)
High current Protection IGBTs tripped.
■ In the case of a flexible inductor, try
alarm PCB 1
adding windings.
High current Protection IGBTs tripped.
■ In the case of a flexible inductor, try
alarm PCB 2
(with 44 kW adding windings.
generators only)
No coil detected No inductor connected to generator.
■ Connect an inductor to the generator.
to PCB 1.
■ With flexible inductor also connect the
dongle to the generator.
No coil detected No inductor connected to generator.
■ Connect an inductor to the generator.
to PCB 2. (with
■ With flexible inductor also connect the
44 kW generators
only) dongle to the generator.
Transformer Transformer PCB 1 thermally switched on.
■ Wait until the transformer temperature
overheated PCB 1
has dropped again.
■ The temperature monitor resets itself as
soon as the temperature is within the
permitted range again.
■ Check whether the fan(s) on the rear of
the generator are rotating.
■ Check the filter mat(s) of this/these
fan(s).
Transformer Transformer PCB 2 thermally switched on.
■ Wait until the transformer temperature
overheated PCB
2 (with 44 kW has dropped again.
■ The temperature monitor resets itself as
generators only)
soon as the temperature is within the
permitted range again.
■ Check whether the fan(s) on the rear of
the generator are rotating.
■ Check the filter mat(s) of this/these
fan(s).
36
Coil 1 overheated Connected inductor thermally switched off.
■ With fixed inductors: Wait until the
on PCB 1
inductor has cooled down again.
■ The temperature monitor resets itself as
soon as the temperature is within the
permitted range again.
■ With flexible inductors: Check whether
the dongle has been inserted.
Current sensor Current sensor fault PCB 1.
■ Contact your supplier.
failure PCB 1.
Current sensor Current sensor fault PCB 2.
■ Contact your supplier.
failure PCB 2.
(with 44 kW
generators only)
15.2 Other faults
The generator may display warnings, alarms and error messages
on the screen. An overview of the messages and the actions to be
taken is given below.
Problem / Fault Cause & remedy
No display after The display remains black for some time
turning on the during the starting phase. Wait until this
main switch. phase has passed. Do not switch off and
on again immediately if you do not see a
picture at first.
If there is still no picture after max. 1
minute, check the following points:
1. Is the generator connected to the
mains?
2. Do all three phases have mains
voltage?
3. Check the fuses in the device.
These are located behind the front
panel alongside the main switch.
Heating process Check whether heating is being performed
stops suddenly inadvertently in ΔT mode.
although set Deactivate this function, if necessary.
temperature has Section 7.5.
not yet been
reached.
Heating process Check whether heating is being performed
does not start. inadvertently in ΔT mode.
Deactivate this function, if necessary.
Section 7.5.
If you do wish to heat in ΔT mode, check
the settings for this mode.
Heating process Check whether the plug of the coil
does not start. recognition system is connected on the
rear of the generator.
In the case of an inductor without coil
recognition or a flexible inductor, the
dongle must always be inserted.
The connection can be recognised from
the following symbol.
The workpiece Check the workpiece material.
does not heat up. Not all metals are suitable for heating with
medium frequency. See section 3.1.
Schaeffler Technologies