INSTALLATION
Maximum permissible loads [N] on the
pump connections
Force
Bredel 10
F1
600
F2
300
F3
120
5.3.4
Frequency controller
WARNING
A frequency controller that is fitted without
the manual control can start automatically
when power is applied.
If the hose pump is fitted with a frequency controller,
consider the following points:
•
Take precautions so the motor does not re-start
automatically after an unscheduled stop.
In the event of a power or mechanical failure,
the frequency controller controls the motor to
stop. When the cause of the failure is removed,
the motor can restart automatically. The
automatic restart can be dangerous in certain
pump installations.
•
All control cables outside the enclosure must be
shielded and have a cross sectional area
between 0.22 and 1 mm
be connected to earth at both ends.
24
Bredel 15
Bredel 20
600
600
300
300
120
120
2
. The shielding must