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27. OPTION
Brake
unH
Mrcharge
resistor
I
rn Wiring Exampb
I
Inverter
T
W
u
u
Brake unit
Notor:
1.
2.
Connect the brake unit
to
the inverter so that
the terminals
01
the same symbols are
un-
nected.
II the
brake unit
is
not connected wr-
redly,
the
inverter may
be
damaged.
Wires m n e c t i g
the
inverter and
the
brake
unit and
those
connecting
Me
discharge
capacitor and the brake unit
should be
as
short
as
possible. If
wire length exceeds
2m
(6.58 feet),
u s e
hvistebpair wire. The length
must
not
exceed 5m
(16.40 feet) even
if
t h e
hvisted-pair wire is
used.
rn
Cautlonr
on Handling
1.
If the brake unit keeps operating beyond its rating, the thermal relay incorporated in the
brake unit will trip. If the thermal relay is tripped, reset it and increase the deceleration time
of the inverter.
2. The discharge capacitor will be heated to
1OO'C
(212'F).
Use high temperature wire and
insure that wires are not exposed.
Wires may get hot enough to bum the skin.
-
145-
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