5) Power circuit board asm.A
Power
circuit
board
asm.
B
Power
circuit
board
asm.
C
(Company
H,
3-phase,
200 to 240V)
(Company N,
3-phase,
200 to 240 V)
(Company
H,
sin^e-phase,
100to
120V)
(Company N,
single-phase,
100to 120V)
(CompanyH, sin^e-phase,200 to 240V)
[M7201301ABA]
[M7601301ABA]
[M7201301BBA]
[M7601301BBA]
[M7201301CB0 ]
(1) Followthe steps
same
as(1) through(8) of
5-5
4).
(2) Company H
Remove
J5(
0 in Fig.5-17)and J1 ( 0 in Fig.5-17)from the mainframe.
RemoveJ4 (6P) from the power circuit board.
RemoveJ21 (3P) from the AC servocontrol circuit board.
Loosentwo
screws
(M5x 10) O , and
remove
the rectifierfrom the main frame.
Loosen
five
screws
(M4x 8) O in the circuitboard,
remove
the circuitboard and replaceit with
a
new
one.
Then reassemble the components following the procedure for disassembling them in the
reverse
order. This completes the replacement of the power circuit board asm.
Power circuit
board
asm.
A/B/C
(Company N, single-phase,
100
to
120
V only)
AC
servo
control
circuit
board
Fig.
5-20
(3) CompanyN
(D
Remove
J4(
(D
in
Fig.
5-17)
from
the
main
frame.
RemoveJ2 (3P) from the power circuit board.
(3)
Remove
J11 (3P)fromthe
AC
servo
controlcircuitboard.
(2)
Loosen
screw
(M5
x
10)
O or
screw
(M4
x
16)
0 ,
and
remove
the
rectifier
from
the
main
frame.
(5)
Follow
the
steps
same
as
steps
0
and
0 of(2).
6)
AC
servo
control
circuit
board
assemblyB[
Company
N
M75013010B0
^
Company N
nmma
Fig.
5-21
(1)
Loosen
the
front cover setscrews on the PSC
front surface, and open the front cover.
(2) There are two types of ACservocontrol circuit
board assembly B, depending on the motor, as
shown in Fig. 5-21 and 5-22.
(3) Disconnect all
of
the connectors. Since the
connectors have locks, to remove first unlock,
then pull out.
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59
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