ENGLISH
EXTERNAL COMMAND OFF
with empty tank
7.
TROUBLESHOOTING AND PROPOSED SOLUTIONS
FREQUENT PROBLEMS
CAUSES
OPERATION
Feed the control panel respecting
the input voltage
Set the switch on 1
Connect the flat cable from the motherboard
to the display
Switch set on 0
Display off
N
o supply
The flat cable inside the control panel
is not connected
MAXIMUM CURRENT alarm
Maximum current set on the setup less
than that absorbed by the motor
Motor blocked or damaged
Set manually the maximum current the 25%
more than the nominal value
Disconnect the motor and be sure
it is working properly
Ceck the functionality of the float switch
and of the cable and replace if necessary
Possible failure of the float switch
LACK OF PHASE alarm
(SA650.xx)
Lack of phase incoming or outcoming
Ensure the presence of the three phases
REVERSE RST PHASES alarm
(SA650.xx)
Wrong phases sequence input
Reverse one of the three phases
on the switch of the control panel
27
Pressure value in bar shown in the
wrong display
Clean carefully the pressure transducer
and replace it if necessary
Possible filling or failure of the 4-20mA
pressure transducer