Troubleshooting - DAB ED Serie Installationsanweisung Und Wartung

10.

TROUBLESHOOTING

FAULTS
1. The motor is not A. The magnetothermal switch of the panel (ref.
fed.
B.
C.
D. The remote control switch ref. KM1 vibrates.
E.
F.
2. The protection A. Pump impeller blocked.
ref. QM1
B.
intervenes.
3. The thermal A. Check the working environment temperature
protection in the
B.
windings of the
motor trips.
C.
4. The pump A. The floats are not correctly connected to the
continues
delivering and B.
does not respond C.
to external
commands.
5. The remote A. The connections of the leads from the motor
control switch
ref. KM1 is fed
intermittently.
6. The remote A. The float P is not connected exactly to the
alarm is not
working. B.
C.
CHECK (POSSIBLE CAUSES)
QM1) or the differential automatic switch on
the distribution panel has tripped.
There is not voltage on the motor supply
terminals.
The protection of the internal transformer has
tripped.
Tripping of the OIL probe protection
(presence of water in the seals chamber).
Tripping of the motor protector KK.
The timer for regulating strong static
torque time is set over 4 seconds (only
for
ED 3 M HS ).
of the electropump.
Pump impeller blocked or clogged.
Check the state of the rotor shaft bearings of
the electropump.
control panel.
The floats are faulty.
The remote control switch KM1 is faulty
(contacts are stuck).
are inverted on the control unit terminals.
(only for panels with thermal protection for
the motor).
panel, or does not follow the water level.
The float is faulty.
The acoustic or luminous signal ref.Q is not
correctly connected to
terminals.
ENGLISH
A. Check the insulation of the pump cables, of the
pump
magnetothermal switch located in the panel (rif.
QM1) or the differential switch on the
distribution panel.
B. Check the control unit connecting cables and
any switches or insulating switches in the
system.
C. Turn off the main switch for three minutes, then
switch it on again Starting of the electropump
excludes the fault. If the electropump is not fed,
or is temporarily fed, identify any short circuits
in the secondary circuit of the transformer.
D. The supply voltage is insufficient.
E. Check for any infiltrations of water in the seals
chamber.
F. See point 3.
A. Carry out maintenance to free the impeller.
Set the timer
B.
KT1.
A. Reduce the temperature of the fluid to be
pumped.
B. Carry out maintenance to free the impeller.
C. Change the pump bearings if worn.
A. Correctly connect the floats and check
operation of the system (par.8.4 - 8.6).
B. Change the floats.
C. Change the part.
A. Connect the leads from the motor, strictly
respecting the enclosed diagrams.
A. Correctly connect the float and check operation
of the system.
B. Change the float.
the respective C. Check the connections and the correspondence
of the electrical characteristics.
21
REMEDY
or of the floats. Reset
correctly as indicated in ref.
the