YASKAWA Varispeed-606PC3

t .
VS-606PC3
INVERTER
MAIN UNIT
(Cont'd)
1 .7
MAINTENANCE
1 .7 .1
Periodical
Inspection
VS-606PC3 requires
very few routine
checks . It will
function
longer if it is
kept clean, cool and dry, while
observing the
precautions listed in
"Location" (Par .
1 .4 .3) .
Check for tightness
o~' electrical
connections,
discoloration
or other
signs of overheating .
Use
Table 1 .7
as the inspection guide
. Before servicing,
turn OFF AC main
circuit power and
be sure that
CHARGE
lamp is OFF .
Table
1 .7
Periodical
Inspection
Note

Do not remove the front cover
of enclosed wall-mounted,
type (NENIA l ) or the unit
cover of
water and dust tight
type (NEMA4), or failure
may occur
Component Check
Corrective Acton
External
Terminals,
Unit
Loosened screws
Tighten
Mounting
Connectors,
Bolts,
etc .
Loosened connectors
Tighten
Blow with dry compressed air
Cooling
Fins
Build-up of
dust or dirt of 39 .2
x104
to 58 .8 x 10 4 Pa
[5'7
to 85 psi (4
to 6
kg
- cm2~]
pressure
.
Blow with dry
compressed air
of 39 .2
X104
to 58 .8 x 10
1 -Pa
Panted Circuit
Accumulation
of conductive
(5'7 to 85 psi (4 to 6 kg -
cm2)]
Board
dust
or oil mist
pressure .
If
dust and oil cannot be
removed,
replace the inverter
unit
.
Abnormal
noise or vibration .
Cooling Fan
Whether
the
cumulative
operation time
exceeds
R
Replace the inverter unit .
20,000 hours
or not .
Power Elements,
Smoothing
Abnormal odor Replace the
inverter unit .
Capacitor