SiEBE18-526 BP Unit
Removal Procedure 353
2. BP Unit
2.1 Removal of PCB
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step
Procedure Points
1. Removing the PCB.
1
Remove the four
screws from the
electrical box cover.
Detach the cover.
2
The PCB is as shown at
right. Disconnect all the
relay cables.
The PCB is coated resistant to
moisture. This means that the
fuse and varistor cannot be
replaced.
When reassembling, have test
operation for checking wrong
wiring.
(Q0501)
(Q0502)
LEDA
LED1
LED2
LED3
LED4
H1P
H2P
H3P
H4P
H5P
X2A
WHT
X7A
WHT
X20A
WHT
X90A
WHT
X6M
X1M
(Q0503)
E1
F2U
X5M
X4M
X3M
DS2
X23A
YLW
X22A
BLU
X21A
RED
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