ED 3 M HS - DAB Pumps S.p.a.

8.8
ENGLISH
Troubleshooting ED 1,3 M – ED 3 M – ED 3 M HS
FAULTS CHECK (POSSIBLE CAUSES) REMEDY
1. The motor is not A. The magnetothermal switch of the panel A. Check the insulation of the pump cables, of the
fed.
(ref.4) or the differential automatic switch on pump or of the floats. Reset the magnetothermal
the distribution panel has tripped.
switch located in the panel (rif.QM1) or the
differential switch on the distribution panel.
B. Check the control unit connecting cables and any
B. No voltage on terminals L1-N
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
C. The protection of the internal transformer has excludes the fault. If the electropump is not fed,
tripped.
or is temporarily fed, identify any short circuits
in the secondary circuit of the transformer.
D. The supply voltage is insufficient.
2. The protection
ref. QM1
intervenes.
3. The thermal
protection in the
windings of the
motor trips.
4. The pump
continues
delivering and
does not respond
to external
commands.
5. The remote
control switch
ref. KM1 is fed
intermittently
6. The remote
alarm is not
working.
8.9 List of spare parts
ED 1,3 M
D. The remote control switch ref. KM1 vibrates.
A. Pump impeller blocked.
B. The timer for regulating strong static
torque time is set over 4 seconds (only
for ED3 MHS )
A. Check the working environment temperature
of the electropump.
B. Pump impeller blocked or clogged
C. Check the state of the rotor shaft bearings of
the electropump.
A. The floats are not correctly connected to the
control panel.
B. The floats are faulty.
C. The remote control switch KM1 is faulty
(contacts are stuck).
A. The connections of the leads from the motor
are inverted on the control unit terminals.
(only for ED 3 M, ED 3 MHS)
A. The reference float P is not connected exactly
to the control unit or does not follow the
water level.
B. The float is faulty.
C. The acoustic or luminous signal ref.Q is not
correctly connected to the respective
terminals.
27
A. Carry out maintenance to free the impeller.
B. Set the timer correctly as indicated in ref. 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.8.3)
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.
C. Check the connections and the correspondence
of the electrical characteristics.
REF Code Description Model
QM1 002740051 MODULAR AUTOMATIC SWITCH
1P+N 10A
KM1
002773460
19133 MERLIN GERIN
EF 681 0 ABB
LN C10 SIEI
REMOTE CONTROL SWITCH 4KW 400V AC3 24V 50/60Hz LC1D09B7 TELEMECANIQUE
100-C09KJ10 AB
A 09-30-10 ABB
TC1 002771290 SINGLE-PHASE TRANSFORMER 0-230/24 30VA
KA1 002773261 BAYONET RELAY, 2 CONTACTS, COIL 24V ac 40.52.80.24.0000 FINDER
ED 3 M
REF Code Description Model
QM1 002740052 MODULAR AUTOMATIC SWITCH
1P+N 16A
KM1
19135 MERLIN GERIN
EF 682 8 ABB
LNC 16 SIEI
002773462 REMOTE CONTROL SWITCH 5.5KW 400V AC3 24V 50/60Hz LC1 D121B7 TELEMECANIQUE
100-C12KJ10 AB
A 12-30-10 ABB
TC1 002771290 SINGLE-PHASE TRANSFORMER 0-230/24 30VA
KA1 002773261 BAYONET RELAY, 2 CONTACTS, COIL 24V ac 40.52.80.24.0000 FINDER
ED 3 M HS
REF Code Description Model
QM1 002740052
MODULAR AUTOMATIC SWITCH
1P+N 16A
19135 MERLIN GERIN
EF 682 8 ABB
LNC 16 SIEI
KM1
002773462 REMOTE CONTROL SWITCH 5.5KW 400V AC3 24V 50/60Hz
LC1 D12B7 TELEMECANIQUE
100-C12KJ10 AB
A 12-30-10 ABB
TC1 002771290 SINGLE-PHASE TRANSFORMER 0-230/24 30VA
KA1 002773261 BAYONET RELAY, 2 CONTACTS, COIL 24V ac 40.52.80.24.0000 FINDER
KT1 002773244 TIMED BAYONET RELAY 24V ac 86.10.0.024.0000 FINDER