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35
3–7–1
Zones
Up to three zones can be set in the DM area. If one or more zones have
been set, zone flags in the IR area can be used to determine if the present
position is within any established zones. A zone flag is ON (1) when the pre-
sent position is within the zone; OFF (0) when it is not. Zones can be set to
cover a wide range of positions or narrowed to cover only part of a single po-
sitioning action. Zones can also be set to overlap, if target. For application
example, see programming example 8 in Section 5.
CW and CCW Limit
Settings
The CW and CCW limits for any one zone are set in separate word pairs, i.e.,
four words total are required to establish one zone. These words are allo-
cated as follows:
Zone 0 CW limit:
m+9 and m+10, 7 digits with direction
Zone 0 CCW limit:
m+11 and m+12, 7 digits with direction
Zone 1 CW limit:
m+13 and m+14, 7 digits with direction
Zone 1 CCW limit:
m+15 and m+16, 7 digits with direction
Zone 2 CW limit:
m+17 and m+18, 7 digits with direction
Zone 2 CCW limit:
m+19 and m+20, 7 digits with direction
Note that the CW limit for any of the zones can be on the CCW side of the
origin; the CCW limit, on the CW side. In other words, a zone can either
cross the origin or be completely on one side of it. An alarm will be gener-
ated, however, if the CCW limit of a zone is set on the CW side of the CW
limit.
Zone 0 CW limit
CCW
Origin
CW
0
Zone 1 CCW limit
Zone 0 CCW limit
Inside zone
Inside zone
Zone 1 CW limit
Positioning axis
Example 1: Correct Setting
Zone 0 CCW limit
CCW
Origin
CW
0
Zone 0 CW limit
Positioning axis
Example 2: Incorrect Setting
DM Area Allocation
Section 3–7
Содержание SYSMAC C200H-NC111
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Страница 2: ...SYSMAC C200H NC111 Position Control Unit Operation Manual Revised September 2003...
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