Troubleshooting - Calpeda QML/A 1 D 12A-FA Betriebsanleitung

14. TROUBLESHOOTING

OFF
ELECTRICAL DANGER: Before doing any troubleshooting on the appliance, it is necessary to disconnect any
supply for at least 5 minutes. Be sure that the main supply cannot be accidentally turned on.
(General issues)
Issues
The system is stop and cannot
restart itself.
The display is turned off
The system is stop and cannot
restart itself.
There is no alarm on display.
Amperometric protection
thermal protection is active
(PUMP OVERLOAD)
M004_REV06_ - Operating Instructions
Probable cause
Main supply disconnected
The supply cable is broken
or short-circuited
The main switch is turned
off
The main switch is faulty.
The electronic
MPS3000 is faulty.
The fuse of the A2 card is
interrupted. (see chapter
15)
The pressure switches are
disconnected (available
only in pressure mode).
The pressure switches are
faulty (available only in
pressure mode).
The line fuses
interrupted (only available
on
QML/A ...D 12A-FA,
QTL/A ... 12A-FA,
QMLC/A ...D 12A-FA,
QTLC/A ...D 12A-FA,
QSE/A 230-230 control
boxes)
or The current is not set on the
parameter UP03 MOTOR
CURRENT PUMP1
(only available on
QML/A ...D 12A-FA,
QTL/A ... 12A-FA,
QMLC/A ...D 12A-FA,
QTLC/A ...D 12A-FA,
QSE/A 230-230 control
boxes)
The pump is blocked
The direction of rotation
is wrong (only for three-
phase pumps)
The pump works out of
curve
Plant condition
FIRST START
EXISTING PLANT
FIRST START
EXISTING PLANT
card EXISTING PLANT
EXISTING PLANT
FIRST START
FIRST START
are EXISTING PLANT
FIRST START
FIRST START
EXISTING PLANT
FIRST START
FIRST START
Possible solutions
Connect the supply
cable
Fix or switch the cable.
Turn on the main switch
Contact the
manufacturer
Contact the
manufacturer
Change the fuse.
Connect the pressure
switches
Substitute the pressure
switches
Change the fuses (see
chapter 6.5.9)
Set the parameter
Check the pump's
instruction manual.
Change the direction
of rotation (see chapter
7.4)
Make the pump work
within its curve.
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