LSIS LSLV0055H100-4COFN - Page 550

Maintenance
STYLEREF Chapter \* MERGE
536
Inspection
area
Inspection
item
Inspection details
Inspection
method
Judgment
standard
Inspection
equipment
terminal
using a
Megger.
Is there anything
loose in the
device?
Tighten all
screws.
No
abnormality
Is there any
evidence of parts
overheating?
Visual
inspection
Cable
connection
s
Are there any
corroded
cables?
Visual
inspection
No
abnormality
-
Is there any
damage to cable
insulation?
Terminal
block
Is there any
damage?
Visual
inspection
No
abnormality
-
Smoothing
condenser
Measure
electrostatic
capacity.
Measure with
capacity
meter.
Rated
capacity over
85%
Capacity
meter
Relay
Is there any
chattering noise
during
operation?
Visual
inspection
No
abnormality
-
Is there any
damage to the
contacts?
Visual
inspection
Braking
resistor
Is there any
damage from
resistance?
Visual
inspection
No
abnormality
Digital
multimeter /
anaog tester
Check for
disconnection.
Disconnect
one side and
measure with
a tester.
Must be within
±10% of the
rated value of
the resistor.
Control
circuit
Protection
Operation
check
Check for output
voltage
imbalance while
Measure
voltage
between the
Balance the
voltage
between
Digital
multimeter or
DC voltmeter