8 Homing
8-4
NJ/NX-series CPU Unit Motion Control User’s Manual (W507)
Precautions for Correct UsePrecautions for Correct Use
• For a virtual axis, home is always defined with a zero position preset. The setting of the Hom-
ing Method axis parameter is ignored.
• The positive drive prohibit input (POT), negative drive prohibit input (NOT), and home proxim-
ity input (DEC) of the Servo Drive are used by the MC Function Module as the positive limit
input, negative limit input, and home proximity input. Make sure that the signal widths for all of
these input signals are long enough for the Servo Drive to detect them and longer than the
control period of the MC Function Module. If the input signal widths are shorter than the control
period, the MC Function Module may not be able to detect the input signals, resulting in incor-
rect operation.
• You must set the Servo Drive parameters for each Servo Drive input signal. Refer to the man-
ual for your Servo Drive and the appendices and make the proper settings.
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