NSK MEGATHRUST ESA-LYB2T15-21, Руководство пользователя

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— 10-8 —
10.2.4. Position of Origin Limit Switch in TY1 and TY2 I/O Combination
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There is not an input of “overtravel limit” in I/O combination of TY1 or TY2. Use software
overtravel (parameter OTP and OTM) to set off-limit area. However the software overtravle
limit does not function until completion of Home return after the power is turned on. The slider
may hit mechanical limit in Home return operation for the first time after power on. In order to
avoid this kind of accident, set the positions of Origin limit switch and software overtravle las
shown in Figure 10-4.
Figure 10-4: Position of Origin limit switch in TY1 and TY2 combiantion
Maximum stroke range of the slider
Off-set HO
Home return
motion
Origin
OTP OTM
(1)
Off limit area
Area to make Origin limit
switch HLS input ON
Mechanical limit
(stopper)
PLS MNS
Mechanical limit
(stopper)
Off limit area
Software overtravel limit
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Set the Home position limit switch to MNS side so that there is no clearance between HLS input
ON area and the mechanical limit (stopper).
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The slider may collide into the mechanical limit if the clearance exists.
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Software overtracel limit must be set in both sides of Origin. Refer to “9.1.4.2. Software
Overtravel Limit” for setting procedure.
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The area (1) shown in Figure 10-4 requires for deceleration in Home return operation. Be sure to
give a substantial allowance for this area.
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Check if the parameters related to Home return operation are OS4 and HD1 (shipping set).
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