Baldor VS1MD, Руководство пользователя

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9-8
VS1-MD AC Drive User Manual
Inverter
overheat
•
Cooling system has
problems.
•
Check for foreign
substances clogged in
the heat sink.
•
Cooling fan has failed.
•
Replace the old
cooling fan with a new
one.
•
Ambient temperature
is too high.
•
Keep ambient
temperature under 50
degrees C.
Output Phase
loss
•
Faulty contact in
output contactor.
•
Replace or repair
output contactor.
•
Faulty output wiring
•
Check output wiring.
Cooling Fan
Fault
•
An foreign substance
is clogged in a
ventilating slot.
•
Check the ventilating
slot and remove the
clogged substances.
•
Cooling fan has failed.
•
Replace the cooling
fan.
Over voltage •
Decel time is too short
for the inertia of the
load.
•
Increase the Decel
time.
•
Regenerative load is
connected to the
drive.
•
Use Dynamic Brake
Unit.
•
Line voltage is too
high.
•
Check to see if line
voltage exceeds the
rating.
Low voltage •
Line voltage is low.
•
Check to see if line
voltage is below the
rating.
•
Load larger than line
capacity is connected
to line (ex: welding
machine, motor with
high starting current
connected to the
commercial line).
•
Check the incoming
AC line. Adjust the
line capacity
corresponding to the
load.
•
Faulty contactor on
the input of the
inverter.
•
Change contactor.
Table 9.2 – Corrective Actions