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Origin Search Operation
Section 8-2
the origin search for the Reversal Mode 1 and Reversal Mode 2 origin
search operation modes. If the origin input signal length is shorter than
the communications cycle, the PCU will be unable to detect the origin in-
put signal when in reversal operation. If the established origin position is
not aligned, the origin search function will not operate correctly. If using
this function with this setting, use an external sensor for the origin input
signal or select an origin search method that uses the origin proximity in-
put signal because the signal width of the Servo Drive's Z-phase signal is
too short.
Reversal Mode Operation
Using Limit Inputs
When the origin search operation mode is set to reversal mode 1 to 3, axis
operation stops or changes to the opposite direction when the limit input sig-
nal turns ON.
When using a W-series Servo Drive, the axis will operate according to the
Select Stop when Prohibited Drive Is Input
(Pn001.1) setting in the Servo
Parameters after the limit input signal turns ON and until the axis operation
stops.
When using a SMARTSTEP Junior Servo Drive, the Servomotor will deceler-
ate to a stop using the maximum Servomotor torque.
Reverse Pattern
For reversal mode 1, the positioning relationship between the limit input and
the origin proximity signal is as shown by the two patterns in the following dia-
gram. For reversal mode 2 or 3, only the bottom pattern is possible. When
these modes are used, the axis operates according to the
Stop Selection for
Drive Prohibit Input
for G-series Servo Drives (Pn066) or
Select Stop when
Prohibited Drive Is Input
for W-series Servo Drives (Pn001.1) for the shaded
areas in the diagram.
Note
If the Servo Parameter (Pn505 for G5 Series, Pn066 for G Series and
Pn001.1 for W Series) is set to stop operation with a free run when a limit
input is input when using a G-series or a W-series Servo Drive, the momen-
tum of the previous operation may cause the machine to run in the limit input
direction.
1
0
1
0
1
0
Origin search
direction limit input
Speed
Origin proximity
input signal
Speed
Origin search direction
Origin search direction
Limit input in opposite direction
from origin search direction
Содержание CJ1W-NC271 - 12-2009
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Страница 22: ...xxii ...
Страница 58: ...30 Starting Operation Section 2 2 ...
Страница 244: ...216 Axis Operating Input Memory Areas Section 4 8 ...
Страница 264: ...236 Transferring Servo Parameters Section 5 3 ...
Страница 396: ...368 Linear Interpolation Section 9 7 ...
Страница 648: ...620 List of Error Codes Appendix D ...
Страница 674: ...646 Additional Functions for the CJ1W NCF71 MA Appendix F ...
Страница 684: ...656 Index ...
Страница 686: ...658 Revision History ...