Troubleshooting - Calpeda E-MPSM Instrucciones De Uso

13. TROUBLESHOOTING

WARNING: Turn off the power supply before performing any operations.
Do not allow the pump or motor to run when dry even for a short period.
OFF
Strictly follow the user instructions and if necessary contact an authorised service centre.
PROBLEM PROBABLE CAUSES
1) 1a) Disconnected or unsuitable power
The motor does supply
not start 1b) Shaft blocked
1c) If the above causes have already
been
malfunctioning
1d) Supply voltage lower than 195V (Er03)
1e) Motor short circuit
2) 2a) Prolonged periods of inactivity with
Pump blocked formation of rust inside the pump
2b) Presence of solid bodies in the pump
rotor
2c) Bearings siezed
3) 3a) Suction filter blocked
The pump 3b) Non-return valve blocked
functions 3c) Not enough suction head
but no water
comes out
4) 4a) Non-return valve broken, blocked or
The pump does clogged with solid parts.
not stop 4b) Stop pressure (parameter UP01) too
high.
4c) Insufficient pump performance
5) 5a) Non-return valve broken, blocked or
The pump works clogged with solid parts
intermittently 5b) Incorrect tank pressure, Empty tank or
broken membrane.
6) 6a) Pipes and accessories with diameter
Insufficient flow too small causing excessive loss of
head
6b) Presence of deposits or solid bodies in
the internal passages of the rotor
6c) Rotor deteriorated
6d) Excessive viscosity of the liquid
pumped (if other than water)
6e) Suction head excessive in relation to
the suction capacity of pump
6f) Suction pipe too long
7) 7a) Rotating part unbalanced
Noise and 7b) Worn bearings
vibrations 7c) Pump and pipes not firmly attached
from the pump 7d) Flow too strong for the diameter of the
delivery pipe
7e) Functioning in cavitation
8) 8a) Pump carried out 15 starts in a short
Excessive time with cycle time less than 30
number of
seconds (
starts/hour
8b) Pump started more than 240 times in
2 hours (Er05)
9) 9a) Power supply not connected or not
No signal on suitable
the display 9b) Power supply cable discontinued
Changes reserved.
E-MPSM Rev1 - Operating Instructions
checked, the engine may be
)
POSSIBLE REMEDIES
1a) Check the complete insertion of the plug and check that the mains
frequency and voltage correspond to the electrical characteristics
shown on the indicator plate
1b) Remove the cause of blockage as indicated in the "Blocked pump"
instruction booklet
1c) Repair or replace the engine by applying to an authorised service
centre
1d) Check supply voltage
1e) Contact an authorized service center.
2a) Remove suction strainer and manually check the free rotation of
impeller, if necessary contact an authorised service center
2b) Check and clean impellers and diffuser, if necessary contact an
authorised service center
2c) If the bearings are damaged replace them or if necessary contact an
authorised service centre
3c) Clean the filter, if necessary, replace it . See point 2a) also.
3d) Verify that the integrated non-return valve is working properly.
3c) Check and, if possible, restore minimum suction head otherwise turn
OFF the pump
4a) Check the function of the integrated check valve and remove the solid
parts present in the valve.
4b) Check the value of parameter UP01 and if necessary reduce it.
4c) Contact an authorised service center.
5a) Check if the built-in check valve is working properly and remove the
solid parts present in the valve
5b) Check the tank pressure
6a) Use pipes and accessories suitable for the specific application
6b) Clean the rotor and install a suction filter to prevent other foreign
bodies from entering
6c) Replace the rotor, if necessary, contact an authorised service centre
6d) The pump is unsuitable
6e) Try to close the feeder gate partially and/or reduce the difference in
level of the pump and the liquid being aspirated
6f) Bring the pump closer to the suction tank so as to use a shorter pipe. If
necessary use a pipe of a wider diameter
7a) Check that no solid bodies are obstructing the rotor
7b) Replace the bearings
7c) Anchor the delivery and suction piping as needed
7d) Use bigger diameters or reduce the pump flow
7e) Reduce the flow by adjusting the feeder gate and/or using pipes with
a bigger internal diameter.
8a) Install a higher capacity tank
8b) Install a higher capacity tank
a) Check the complete insertion of the electric plug and check that supply
voltage and frequency are suitable for electrical characteristics on the
nameplate
b) Contact an authorized service center
EN
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