INVT DBU100H Series

Operational manual for dynamic braking unit
-22-
Checking part
Checking item
Checking
method
Criterion
Ensure there is no dust
and dirtiness
Visual
examination
NA
Note: if the
color of the
copper blocks
change, it does
not mean that
there is
something
wrong with the
features.
The lead of the
conductors
Ensure that there is no
distortion or
color-changing of the
conductors caused by
overheating.
Visual
examination
NA
Ensure that there are
no crackles or
color-changing of the
protective layers.
Visual
examination
NA
Terminals seat
Ensure that there is no
damage
Visual
examination
NA
Resistors
Ensure whether there is
replacement and
splitting caused by
overheating.
Smelling and
visual
examination
NA
Ensure that there is no
offline.
Visual
examination or
remove one
ending to
coagulate or
measure with
multimeters
The resistors
are in ±10% of
the standard
value.
Control
PCB and plugs
Ensure there is no
Fasten up
NA