IAI America RCS2-SD5N - Manual (Page 37)

6. Installation
-31-
[Procedure 2] Correcting the position of encoder Z-phase
If the cutout groove in the shaft is outside the allowable angle range, make corrections by following the
procedure below:
[1] Use a spanner wrench to hold the width across flats on the clasp at the end to keep it in position, and loosen
the lock nut slightly.
[2] Move the clasp at the end slightly in the rotating direction to correct the position.
x If the cutout groove in the shaft is deviated in the A (NG) direction:
Move the clasp at the end clockwise roughly by the correction angle T1 (as viewed from the front).
x If the cutout groove in the shaft is deviated in the B (NG) direction:
Move the clasp at the end clockwise roughly by the correction angle T2 (as viewed from the front).
[3] After the correction, tighten the lock nut with the clasp at the end still held in position.
[Procedure 3] Confirming the Z-phase position again
Finally, repeat [Procedure 1] to confirm the position of Z-phase again.
If the position is inside the allowable angle, Z-phase has been corrected properly.
As viewed from the front
Marking
(orange)
Cutout groove
in shaft
As viewed from the front
Apply a spanner wrench.
Marking
(orange)
Cutout groove
in shaft
Appropriate position of
cutout groove in shaft
Appropriate position of
cutout groove in shaft