IAI America RCM-GW-DV - Manual (Page 96)

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Warning
With the ACON, the excited magnetic phase is detected when the servo turns ON for the first time
after the power on. Because of this operation, the actuator normally moves by approx. 0.5 to 2 mm,
although the specific value varies depending on the ball screw lead.
(On rare occasions, the actuator may move by up to one half the ball screw lead depending on the
position where the power is turned on.)
Also note that if the power is turned on near a mechanical end, the actuator may contact the
mechanical end during the detection operation and reverse its direction.
Exercise due caution not to allow the work or hand to contact any surrounding part or structure and
sustain damage as a result.