12. Fault finding via alarm messages
WARNING
Chemical hazard
Death or serious personal injury
‐
Wear personal protective equipment.
‐
Observe the chemical manufacturer's safety data sheets (SDS) and safety instructions of the used chemicals.
WARNING
Electric shock
Death or serious personal injury
‐
The fault finding on electrical components must only be done by authorised and qualified electricians.
‐
Switch off the power supply before you start any work on the product. Make sure that the power supply cannot be switched on
accidentally.
Alarm message
Cause
Remedy
Power failure
•
The power supply was
interrupted, for example due
to a power breakdown.
•
Reestablish the power supply.
CAUTION
Automatic startup
Minor or moderate personal injury
‐
In case of power failure, switch off the main switch
before starting any work on the system.
Fault motor stirrer 1
Fault motor stirrer 2
Fault motor stirrer 3
Fault motor dry-material feeder
Fault vibrator
Fault motor liquid-concentrate
pump
•
The motor protection switch
has tripped.
•
Check motor for overload (mechanical problem).
•
Check wiring for short circuit damages.
•
Check the nominal current at the motor protector.
Fault level sensor tank
•
The level sensor on the tank
provides no signal or an
incorrect signal.
•
Check the sensor and the wiring.
Fault tank overflow (LSAH)
•
The storage chamber is
overflowing.
•
Check the settings for
LSH
and
LSAH
in menu
Tank
. The two
values must not be too close to each other.
•
Check the level sensor.
Fault tank dry run (LSAL)
•
The storage chamber is
empty.
•
Check the settings for
LSL
and
LSAL
in menu
Tank
. The two
values must not be too close to each other.
•
Make sure that the amount of withdrawn solution does not
exceed the preparation capacity.
•
Check the level sensor.
Fault water flow sensor
•
The water flow sensor
provides no signal or an
incorrect signal.
•
Check the sensor and the wiring.
Water flow too low (FSAL)
•
The incoming water flow rate
is too low.
•
Check the water supply.
Water flow too high (FSAH)
•
The incoming water flow rate
is too high.
•
Check shut-off valve and adjustment of pressure reducing valve
Dry-material feeder empty
(LSAL)
•
The level sensor in the
storage hopper indicates a
lack of dry material.
•
Refill dry material.
•
Check the level sensor.
Flow of liquid concentrate very
low (FSAL)
•
Lack of liquid concentrate,
flow rate too low.
•
Refill liquid concentrate.
•
Check the flow sensor.
•
Check the foot valve.
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English (GB)
