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12 CONTROL SUB FUNCTIONS
Setting item
Cd.34
Step mode
Cd.35
Step valid flag
Step start
Cd.36
information
Refer to Section 5.7 "List of control data" for details on the setting details.
[6] Precautions during control
(1) When step operation is carried out using interpolation control positioning
data, the step function settings are carried out for the reference axis.
(2) When the step valid flag is ON, the step operation will start from the
beginning if the positioning start signal is turned ON while "
operation status" is "step standing by". (The step operation will be carried
out from the positioning data set in "
[7] Step function settings
To use the "step function", write the data shown in the following table to the
QD75 using the PLC program. Refer to section [4] "Using the step operation" for
the timing of the settings.
The set details are validated when written to the QD75MH.
Setting
value
Set "0: Deceleration unit step" or "1: Data No.
unit step".
1
Set "1: Carry out step operation".
Set "1: Step continue", depending on the stop
status.
Cd.3
Setting details
12 - 65
MELSEC-Q
Md.26
Positioning start No.".)
Buffer memory address
Axis
Axis
1
2
1544 1644 1744 1844
1545 1645 1745 1845
1546 1646 1746 1846
Axis
Axis
Axis
3
4
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