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4-13. Setting the mechanical origin
1) Slightly tighten screw
❷
on the lower shaft side.
Then, turn the pulley to position screw
❶
on the
main shaft motor so that it is levelled and faces
upward.
2) Holding the pulley, press
❸
on the main
screen of the electrical box.
3) When you press the "Machine setting parame-
ter",
❹
is displayed. When you enter password
"11111111", screen
❺
is displayed.
4) On the screen that is displayed by pressing the
"Axial angle setting", set the QEP value to 245,
tighten screw
❶
on the main shaft motor side,
and loosen screw
❷
on the lower shaft side.
Then, turn the pulley to bring the needle bar to its
upper dead point.
5) Holding the pulley (not to allow the needle bar to
move), click the "QEP value" of the "Axial setting
parameter" on the screen. Adjust the QEP value
to 0 (zero). Then, tighten screw
❷
on the lower
shaft side.
6) At this point, the origin adjustment has been com-
pleted. Now, turn the pulley again to check that
the QEP value of the needle bar at its upper dead
point is 0 (zero). As long as the aforementioned
QEP value is 0 (zero), the mechanical origin has
been adjusted properly.
❶
❶
❷
❷
❸
❹
❺
