Installation and operating instructions Salmson SXS / NSB-S
43
English
If the operating fault cannot be remedied, please consult skilled craft firms
or the nearest Salmson after-sales service point or representative.
Fault
With the power switched on, the pump does not run
Cause
Motor protection has switched the pump off, because:
a)
Switch off
because of
hydraulic
overloading
of the pump.
b)
Switch off because
of obstruction within
the pump.
c)
Switch off
because of
excessive
fluid temper-
ature.
d)
Switch off
because of
excessive
ambient
temperature.
Remedy
a)
Throttle
the pump at
the pressure
side to an
operating
point on the
performance
curve.
b)
If necessary
remove the vent
screw (visible from
outside) from the
pump and check the
free running of the
pump rotor by turning
the slotted shaft end,
using a screwdriver;
unblock if necessary.
Alternatively:
Deinstallation of the
motor head check; if
necessary perform
deblocking by rotat-
ing the impeller. If the
obstruction cannot
be cleared, contact
after-sales.
c)
Reduce the
temperature
of the fluid,
see name
plate data.
d)
Reduce the
ambient
temperature ,
e.g. by insu-
lating the
pipework and
fittings.
Display
Displays of the lights in the terminal box type
4a
4b
4c
4d
-
green green green
Fault acknowl-
edgement
Terminal box type 4a and 4b:
Auto-reset; after the motor has cooled down, the pump restarts auto-
matically.
Terminal box type 4c and 4d:
If the thermal protection was connected to external switchgear, this
must be reset.
Содержание NSB-S
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