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ELECTRICAL SYSTEM
General
The electric system consists of a high-voltage circuit and
a low-voltage circuit.
High-voltage circuit
High-voltage is used as a power source for both the
electric motor and the low-voltage circuit. An automatic
phase rotation change-over switch ensures that the
electric motor has the correct rotation direction.
Power supply
The power supply from the main must be sufficiently
powerful and constant to ensure that the electric motor
runs without problems.
Too high or too low voltage causes the electric motor's
power consumption, and consequently also its
temperature, to increase until the motor's safety circuit
trips.
Fuses
The fuses in the distribution box protect the electrical
system in conjunction with overloading or breakdown. The
power outlet must be correctly fused with respect to the
electric motor, the length of the power cable and the area
of the power cable's conductor. The table 'Guide values
for mains connection" in the 'Technical data" section
shows which fuse is required for the electric motor.
The machine is equipped with Softstart and can be
started with most types of fuses.
If a fuse keeps blowing, there is a fault in the electrical
system or in the machine that is connected to it. Before
restarting the machine the source of the fault must be
removed.
Power cable
The machine is connected to the mains with a 3 phase
power cable. It is very important that the cable that is used
is correctly dimensioned, i.e. that it has the correct cross-
sectional area in relation to the length of the conductor in
order to counteract drops in voltage. The guide values for
the cable's size are set out in the table 'Guide values for
mains connection" in the 'Technical data" section.
Low-voltage circuit
The high-voltage current is reduced to low-voltage in an
AC/DC module. It is used to supply power to the control
system and functions such as work lighting and refilling
pump.
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English
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Troubleshooting
