15
(3)
Specification of each position detector
∎
Micro switch (Option code: K2 or K4)
※
In case of the special specification, confirm the final drawing because model number, specification or the
number might be different.
Setting the internal LS (Option code: K2 or K4)
The position detection unit may contain either two or four microswitches for the internal LSs. The jack
stroke runs the output from the rotation of the input axis through the reducer, and changes the cam
rotation angle. When the cam reaches a specified position, it will activate the microswitch and stop the
jack. Then adjustment of the cam positions should be carried out.
1. Ensure that all connections have been properly made when adjusting the stroke.
2. At approximately the center of the stroke, ensure that (1) the cam is stopped by the operation of the
forward limit microswitch by screw extension and nut progression, and that (2) the cam is stopped
by the reverse limit microswitch by screw contraction and nut reversal.
3. Be aware that the momentum of the jack will prevent it from stopping immediately when the
microswitch is activated and that there will be a slight amount of overrunning. Take this into
consideration and adjust the microswitch activation position to point slightly in front of where you
actually want the jack to stop.
4. The rotary cam is affixed by two hexagonal bolts to the
shaft directly connected to the reducer. Turn and adjust
the cam after loosening these two bolts. Trying to turn the
cam without loosening these bolts may damage the
internal reduction gears. (Note: Use a hexagonal wrench
[2size] for loosening the bolts).
5.
Adjust the cams beginning with the one farthest away (if
you start with the nearest cams you may not be able to
move the farthest ones). After adjustment, be sure to
tighten the bolts.
Specification of micro switch
Type
D2VW-5L2A-1M or equivalent
Maker
OMRON
Contact
configuration
LS1 LS2 LS3 LS4
(Terminal No.)
Capacity
AC250V4A (COS
φ
= 0.7)
LS cam
Set screw
(8)
(7)
(4)
(15)
(16)
(4)
(6)
(4)
(5)
(4)
(17)
(18)
★