Calpeda QML/A 1 D 12A-FA Manuel D'instructions page 30

Issues
The current sensor does not read
any current flow
(P. DISCONNECTED)
GB
The external input alarm on the
MPS3000 has been short-circuited
(EXTERNAL ALARM)
The pressure transducer or the
level sensor are broken.
(SENSOR FAILURE)
(Only if the parameter (AP04 LEVEL
SENSOR is set on "transducer" or
if the AP07 PRESSURE SENSOR
is set on "transducer").
Page 30 / 92
Probable cause
The cable of the pump is
broken or disconnected
The submersible pump or
submerged pump's float
switch stopped.
The pump has an internal
device that disconnect
the pump (flow switch,
idromat..etc etc)
The internal motor
protector has activated.
(only for single phase
pump)
The motor windings are
broken.
There is a problem with
the control box
There is an external alarm
The device is
disconnected
The device is broken
Plant condition
FIRST START
EXISTING PLANT
FIRST START
FIRST START
FIRST START
EXISTING PLANT
EXISTING PLANT
FIRST START
EXISTING PLANT
FIRST START
EXISTING PLANT
FIRST START
FIRST START
EXISTING PLANT
M004_REV06_ - Operating Instructions
Possible solutions
Change the pump
supply cable
Block the float switch of
the pump in a ON state
and connect another
float switch directly to
the control box
Get rid of the device or
deactivate it.
Wait until the motor
has cooled down, and
restart the control box.
Contact the
manufacturer
Contact the
manufacturer.
Check the connections
on the MPS electric
card. (A1)
Connect the transducer
Contact the
manufacturer.