Habasit Rossi 5REF, Руководство по эксплуатации

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45
Rossi
HB-1.0001 РЭ
Troubles: causes and corrective actions:
Motor trouble Possible cause Corrective actions
Motor does not start
Failure on supply mains
Check voltage presence on the three
phases of supply mains
False connection in the terminal box
Check that motor connection
corresponds to the envisaged
diagrams
Brake jam status See «Brake troubles», point 1
Operation of motor thermal probes
Wait for winding cooling; if problems
persists, see point 4.
Operation of magnetothermic
protection on power line
Check that the required load is not
too high or that magnetothermic
protection
is underdimensioned
Trouble on motor winding
Consult Rossi
(Motor Division)
The direction of
rotation is false
False connection in the terminal box
Check that motor connection
corresponds to the schemes
foreseen (for three-phase motors,
change 2 phases)
The starting torque is
insuffi cient
Y motor connection instead of Δ
connection
Check that motor connection
corresponds to the envisaged
diagrams
Voltage or supply frequency beyond the
motor nameplate data
Check the electrical parameters of
supply mains
Excessive voltage fall upline of the
motor
Check and if necessary increase the
cable section
Motor overheating (
t
carc
-
t
amb . 70°C)
Brake jam status See «Brake troubles», point 1
Nameplate data do not match with the
power line
Consult Rossi
(Motor Division)
Y-connection of motor instead of Δ
Check that motor connection
corresponds to the envisaged
diagrams
A supply phase is missing
Check the mains and the contacts
inside the motor terminal block
Too high or too long lasting overload
Reduce the power requirement,
install a higher power motor or pre-
arrange an
additional cooling device (servo fan)
Excessive starting frequency
Reduce the starting frequency or the
inertia downline of the motor
Electrical disjunctor (single-phase
motors) failure
Consult Rossi
(Motor Division)
Servo fan (if present) cooling is not
effi cient
Check that the servo fan is working,
is correctly working, connected
and that the direction of rotation
complies with the intended one (see
arrow on
fan cover)
Obstructed fan cover Free the cooling air passages
Insuffi cient space around the motor Widen the cooling air passages
Insuffi cient air recirculation Increase the cooling air recycle
The current absorption is beyond
the nameplate values
Brake jam status See «Brake troubles», point 1
Winding failure
Consult Rossi
(Motor Division)
Anomalous noise
Damaged bearings Replace the bearings
False alignment between motor shaft-
driven
machine
Correct the alignment
Eccentric or not balanced rotating
elements
Balance the rotating elements and
eliminate the eccentricity
With supply from inverter: low
quality wave, excessive cable length,
inadequate protection
Pre-arrange adequate fi lters and
protections. Reduce the distance
between
motor and inverter (see specifi c
manufacturer’s documentation)