YASKAWA SGD7C-***AMAA***, Product Manual

Page: 259 / 669

5.19 I/O Signal Allocations
5.19.9 /NEAR (Near Output) Signal
5-62
5.19.9 /NEAR (Near Output) Signal
The /NEAR (Near Output) signal indicates when positioning completion is being approached.
The host controller receives the NEAR signal before it receives the /COIN (Positioning Comple-
tion Output) signal, it can start preparations for the operating sequence to use after positioning
has been completed. This allows you to reduce the time required for operation when position-
ing is completed.
The NEAR signal is generally used in combination with the /COIN signal.
Note: You must allocate the /NEAR signal to use it. The parameters that you use depend on the allocation method.
Refer to the following section for details.
5.19.2 Output Signal Allocations on page 5-53
/NEAR (Near Output) Signal Setting
You set the condition for outputting the /NEAR (Near Output) signal (i.e., the near signal width)
in Pn524 (Near Signal Width). The /NEAR signal is output when the difference between the ref-
erence position and the current position (i.e., the position deviation as given by the value of the
deviation counter) is equal to or less than the setting of the near signal width (Pn524).
Note: Normally, set Pn524 to a value that is larger than the setting of Pn522 (Positioning Completed Width).
Type Signal Connector Pin No. Signal Status Meaning
Output /NEAR Must be allocated.
ON (closed)
The Servomotor has reached a point
near to positioning completion.
OFF (open)
The Servomotor has not reached a
point near to positioning completion.
Allocation Method Parameters to Use
Σ
-7S-Compatible I/O Signal
Allocations
•
Pn50A = n.

1 (
Σ
-7S-Compatible I/O Signal Allocations)
•
Pn510 = n.

X (/NEAR (Near Output) Signal Allocation)
Multi-Axis I/O Signal Allocations
•
Pn50A = n.

2 (Multi-Axis I/O Signal Allocations)
•
Pn5B8 (/NEAR (Near Output) Signal Allocation)
Pn524
Near Signal Width
Setting Range Setting Unit Default Setting When Enabled Classification
1 to 1,073,741,824 1 reference unit 1073741824 Immediately Setup
Po s ition
Pn524 Pn522
0
(Active when ON (clo s ed).)
(Active when ON (clo s ed).)
/COIN s ignal
/NEAR s ignal
Po s ition
deviation
Motor s peed
Time
Time
Time
Time
Reference
S peed