Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 156

• The search fails.
(1) When a matching current feed value is not found
Cam axis current value per cycle
Cam axis current feed value
(Current feed value)
Cam reference position
(2) When the unit is "degree" and cam axis current value per cycle restoration is executed in a cam stroke range that straddles 0
Cam axis current value per cycle
Cam reference position
Cam axis current feed value
(Current feed value)
• In the case above, execute cam axis current value per cycle restoration within a cam stroke range exceeding 0 and less than 360[degree]
Cam axis current value per cycle
Cam axis current feed value
(Current feed value)
Cam reference position
■With a feed operation cam pattern
• Search from "Cam axis current value per cycle = 0". (Cam data starting point = 0)
Cam axis current value per cycle
Cam axis current feed value
(Current feed value)
Cam reference position
7 SYNCHRONOUS CONTROL INITIAL POSITION
154
7.3 Cam Axis Position Restoration Method
[degree]
360
180
0
Cam stroke
range
-180
[degree]
360
180
Cam stroke
range
0
Restoration fails. No match is found
for the current feed value within1 cycle.
As the range for the current feed value is
"0 to 359.99999", restores the cam axis
current value per cycle at the position on
the dotted line, then minor error
(error code: 1C28H) occurs and
the search fails.
Search from "Cam axis current value
per cycle=0".
Restore to the first current feed value
that matches.
(Other values are not restored.)