MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D - Manual (Page 349)

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MELSEC-Q
9 MAJOR POSITIONING CONTROL
Restrictions
(1) An axis error "Continuous path control not possible (error code: 516)" will
occur and the operation cannot start if "continuous path control" is set in
" Da.1 Operation pattern". ("Continuous path control" cannot be set in fixed-
feed control.)
(2) If the movement amount of each axis exceeds "1073741824 (=2
30
)" when "0:
Composite speed" is set in " Pr.20 Interpolation speed designation method",
the "Outside linear movement amount range error (error code: 504)" occurs at
a positioning start and positioning cannot be started. (The maximum
movement amount that can be set in " Da.6 Positioning address/movement
amount" is "1073741824 (= 2
30
)".
(3) "Fixed-feed" cannot be set in " Da.2 Control system" in the positioning data
when "continuous path control" has been set in " Da.1 Operation pattern" of
the immediately prior positioning data. (For example, if the operation pattern of
positioning data No. 1 is "continuous path control", fixed-feed control cannot
be set in positioning data No. 2.) An axis error "Continuous path control not
possible (error code: 516)" will occur and the machine will carry out a
deceleration stop if this type of setting is carried out.
Positioning data setting example
[Reference axis is designated as axis 1.]
The following table shows setting examples when "3-axis fixed-feed control (fixed-
feed 3)" is set in positioning data No. 1 of axis 1. (The required values are also set
in positioning data No. 1 of axis 2 and axis 3.)