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8 OPR CONTROL
Setting item
OPR. 9
OPR dwell time
OPR. 10
OPR retry
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[2] Precautions
(1) In the OPR retry function, the Retry switch (RTRY) is used to detect the work
position when it has gone beyond the original point.
Note that, while this function is used, turning ON the speed-position
switching signal (CHG) is recognized as turning ON the Retry switch signal.
(2) Place the Retry switch in a position beyond the original point viewing from
the " OPR. 2 OPR direction".
Also, keep an adequate distance between the Retry switch and the near-
point dog switch so that both ON areas are not overlapped.
If both the near-point dog signal and the Retry switch signal turn ON, a
"Retry signal ON error" (Error code: 204) may occur.
(3) The OPR retry function is enabled in the following:
• Near-point dog method
• Count 1
• Count 2
[3] The OPR retry function setting
To use the OPR retry function, set the following parameters and write them to the
QD70D.
Setting value
Set a stop time for deceleration stop during the OPR retry.
(Any value within the range from 0 to 65535 [ms]*)
1
Set "1: Enable the OPR retry".
*: In setting on a sequence program, enter the setting value as follows:
0 to 32767
32768 to 65535 : Convert into hexadecimal
Setting details
: Enter in decimal format
MELSEC-Q
Factory – set initial value
0
0
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