Goodrive350 IP55 High-ingress Protection Series VFD Maintenance and hardware fault diagnosis
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their color change due to
overheat.
Check whether the wire
sheaths are cracked or their
color changes.
Check whether there is
damage.
Check whether there is
electrolyte leakage,
discoloration, cracks, and
chassis expansion.
Check whether the safety
valves are released.
Determine the
service life based on
the maintenance
information, or
measure them
through electrostatic
capacity.
Check whether the
electrostatic capacity is
measured as required.
Use instruments to
measure the
capacity.
Electrostatic
capacity ≥ initial
value × 0.85
Check whether there is
displacement caused due to
overheat.
Olfactory and visual
inspection
Check whether the resistors
are disconnected.
Visual inspection, or
remove one end of
the connection cable
and use a
multimeter for
measurement.
Resistance range:
±10% (of the
standard
resistance)
Check whether there is
unusual vibration sounds or
smells.
Auditory, olfactory,
and visual
inspection
Electromagnetic
contactor and
relay
Check whether there are
vibration sounds in the
workshop.
Check whether the contacts
are in good contact.
Check whether the screws
and connectors loose.
Check whether there is
unusual smell or
discoloration.
Olfactory and visual
inspection
Check whether there are
cracks, damage, deformation,
or rust.
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