Omron CJ1W-NC271 - 12-2009, Руководство по эксплуатации

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Origin Search Operation
Section 8-2
W-series Origin Search Parameters
Note Starting in Position Control Unit with version 2.0 and later, the Final Distance
for External Input Positioning (G5 series: Pn820, G series: Pn203) or Final
Travel Distance for External Positioning (W series: Pn814) is used for internal
processing in the Position Control Unit when one of the following origin search
operation patterns are selected.
• When the origin detection method is set to any value except for 0
(Origin proximity input signal reversal)
• When setting a zero point position offset for an origin search using an
absolute encoder
Because the Final Distance for External Input Positioning (G5 series: Pn820,
G series: Pn203) or Final Travel Distance for External Positioning (W series:
Pn814) is automatically overwritten by the Position Control Unit when starting
the origin search operation, if the interrupt feeding is used after origin search,
the
Final Distance for External Input Positioning (G5 series: Pn820, G series:
Pn203) or Final Travel Distance for External Positioning (W series: Pn814)
must be set again. Also, the Servo parameters are read out by the Position
Control Unit for the following parameters when the origin search operation is
started.
Origin Return Approach Speed 1, Origin Return Approach Speed 2, Origin
Search Final Travel Distance
(Origin Search Approach Speed 1, Origin Search Approach Speed 2, Origin
Search Final Travel Distance (Pn823, Pn824, Pn825) for G5 Series, Origin
Return Approach Speed 1, Origin Return Approach Speed 2, Origin Return
Final Distance (Pn110, Pn111, Pn204) for G Series or Zero Point Return
Approach Speed 1, Zero Point Return Approach Speed 2, and Final Travel
Distance to Return to Zero Point (Pn817, Pn818, Pn819) for W Series)
Absolute Origin Offset (Pn200) for G Series or Absolute Encoder Zero Point
Position Offset (Pn808) for G5 Series/W Series) (when using an absolute
encoder)
Set the origin search direction of the axis parameters and Origin Search
Direction for G5-series Servo Drives (Pn822), Origin Return Mode Settings for
G-series Servo Drives (Pn10F) or Zero Point Return Mode Setting for W-
series Servo Drives (Pn816) to the same direction. Setting different directions
may result in a malfunction.
Type Parameter
No.
Parameter name Unit Setting range Parameter
size
Default
setting
--- Pn814 (See
note.) Final travel distance for
external positioning Command unit
−
1,073,741,823
to
1,073,741,823
4 100
Pn816 Zero point return direction --- 0000 hex or
0001 hex 2 0
Pn817 Zero point return approach
speed 1 100 command
units/s 0 to 65535 2 50
Pn818 Zero point return approach
speed 2 100 command
units/s 0 to 65535 2 5
Pn819 Final travel distance to
return to zero point Command unit
−
1,073,741,823
to
1,073,741,823
4 100