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5
Replacing Parts
5.1
Replacing DX200 Parts
5-14
5.1.1.8 Replacing the Brake Circuit Board (JANCD-YBK21-3E
)
Replacement Procedure
1. Turn OFF the breaker and the primary power supply and wait at least 5
minutes before replacement. Do not touch any terminals during this
period.
2. Verify that the converter (SRDA-COA30A21B-E) charge lamp (red
LED) is unlit.
3. Remove the cover for the EAXA major axes control circuit board.
4. Disconnect the all cables from the out side connected to the servo
pack. If there are external axes, follow the Procedure from
④
to
⑦
.
– SRDA-EAXA21A
①
Encoder signal connector
(CN508)
②
CPS input connector
(CN509)
③
DC control power connector
(CN510)
– SRDA-EAXB21A (with the external axes)
④
AMP I/F connector 7th axis
(CN531)
⑤
AMP I/F connector 8th axis
(CN532)
⑥
AMPI/F connector 9th axis
(CN533)
⑦
Encoder signal connector 7th axis
(CN534)
⑧
Encoder signal connector 8th axis
(CN535)
⑨
Encoder signal connector 9th axis
(CN536)
5. Remove the two screws fixing the base of the EAXA circuit board by
pulling.
6. Open the base for the EAXA circuit board.
7. Remove the two screws of the brake circuit board cover fixing the back
of the EAXA circuit board.
8. Remove the all cables connected to the brake circuit board.
*Do not disconnect the jumper wiring connector in the CN404 at this
time.
9. Remove the six screws fixing to the brake circuit board, and remove
the circuit board.
10. Mount the new brake circuit board with the six screws described above
fixing to the EAXA circuit board firmly.
11. Remove the jumper wiring connector from the old brake circuit board,
and reinstall it to the new brake circuit board.
12. Reinstall the other removed cables, screws and the cover as follow the
Procedure from step 7. to 3.
NOTE
Turn OFF the power before replacing the circuit board.