INSTALLATION
24
5.3.4
Frequency controller
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
2
. The shielding must
be connected to earth at both ends.
Maximum permissible loads [N] on the
pump connections
Force
Bredel 10
Bredel 15
Bredel 20
F1
600
600
600
F2
300
300
300
F3
120
120
120
WARNING
A frequency controller that is fitted
without
the manual control
can start automatically
when power is applied.
Summary of Contents for Hose pump Series
Page 2: ...2...
Page 3: ...3 Hose pump series Bredel 10 Bredel 15 and Bredel 20 Manual...
Page 65: ...NOTES 65 Notes NOTES...
Page 66: ...NOTES 66...
Page 67: ...NOTES 67...