NSK MEGATORQUE M-ESB-YSB2020AB300 - Page 339

— A-16 —
B
B
3
3
t
t
y
y
p
p
e
e
B
B
5
5
t
t
y
y
p
p
e
e
Appendix 4: How to Replace ESB Driver Unit
2
2
3
3
t
t
y
y
p
p
e
e
2
2
5
5
t
t
y
y
p
p
e
e
2. Remove the extension board and the absolute sensor board.
l The A3, B3, 13, and 23 type Driver Units do not have the extension board.
l The 13, 15, 23, and 25 type Driver Units do not have the absolute sensor board.
à Extension board : 4 pieces (M3 × 6 Sems screw)
à Absolute sensor board : 2 pieces (M3 × 6 Sems screw)
Figure A-16: Remove circuit boards.
Extension board
CB board
Absolute sensor board
PA board