SISTEM AIR 3203.1B, Technical Manual, Page: 41 / 48

41
2
06/06/2016 Rev:2.0.0
English
ALARM codes which can be automatically reset from the management computer.
The cause of the defect is automatically reset by the central vacuum computer following elimination of the
cause.
Code Defect name Possible cause Intervention procedure
I F 3 INTERNAL COMPONENT EEPROM MEMORY
Call the help centre and replace the
inverter
I F 4 INTERNAL COMPONENT Guasto EEPROM
Call the help centre and replace the
inverter
0 C F EXCESS CURRENT
Mechanial block and/or blowing motor
group overload
Check the blowing motor group
condition and call the help centre
s
C F
BLOWING MOTOR GROUP
SHORT CIRCUIT
Short circuit, or current loss to earth
Check electrical connections and
motor insulation and call the help
centre
Code Defect name Possible cause Intervention procedure
C B F CAN BUS COMMUNICATION
Communication with the CAN BUS network
interrupted
Check the electrical supply to the
blowing motor assembly indicated
in the serial number cell.
Call the help centre.
E E F EEPROM MEMORY Fault in internal memory
Call the help centre and replace the
inverter
0 b f EXCESSIVE BRAKING Blowing motor assembly stop too rapid.
Increase the deceleration time.
Call the help centre
0
h
f
INVERTER OVERHEATING Inverter temperature too high.
Check the inverter ventilation and
environmental conditions.
Call the help centre
0L f MOTOR OVERLOAD
The electric current absorbed by the motor is
too high
Check for mechanical engine blocks.
Call the help centre
0 p f MOTOR PHASE LOSS Loss at motor output phase
Check connections between motor
and inverter.
Call the help centre
0
s
f
ELECTRICAL NETWORK
OVERLOAD
The electrical supply tension is too high.
Check the supply voltage.
Call the help centre
P
h
F
NETWORK PHASE LOSS
Fault in a supply phase.
Irregular electrical supply
Check electrical connection and any
electrical protection mounted on
the vacuum system.
s
L F
MODBUS COMMUNICATION Communication with MOD BUS interrupted.
Check the connection between the
interface board, located inside the
industrial motor and the inverter.
Call the help centre.
u s
f
LOW TENSION
The electrical supply tension is too low.
Damaged load resistor.
Load resistor damaged.
Check the input voltage.
Call the service center and replace
the inverter