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314
Origin Search Operation
Section 8-2
When origin searches are performed using reversal mode 1 to 3 as the opera-
tion mode, either enable the Servo Drive's dynamic brake, or set the
Stop
Selection for Drive Prohibition Input
for G5-series Servo Drives (Pn505), 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) to 1 (decelerates to a stop using the immediate stop torque set in
Pn511 for G5 Series, the emergency stop torque set in Pn06E for G Series or
Pn406 for W Series or lower and locks Servo in zero clamp mode) or 2 (decel-
erates to a stop using the immediate stop torque set in Pn511 for G5 Series,
the emergency stop torque set in Pn06E for G Series or Pn406 for W Series
or lower and puts Servo in free run state) so that the Servomotor stops prop-
erly when a limit input is received.
8-2-5
Starting Origin Search
Origin search is performed according to the speed command value set in the
Axis Operating Output Memory Areas and started when the ORIGIN
SEARCH Bit turns ON. Execute ORIGIN SEARCH when the Busy Flag for the
corresponding axis is OFF. If ORIGIN SEARCH is executed while the axis's
Busy Flag is ON, a Multistart Error (axis error code: 3050) will occur and ORI-
GIN SEARCH will not be executed.
When starting ORIGIN SEARCH, make sure that the ORIGIN SEARCH Bit
will remain ON until the Busy Flag turns ON.
If the SERVO UNLOCK, DEVIATION COUNTER RESET, EMERGENCY
STOP, OR DECELERATION STOP command bit is turned ON, the ORIGIN
SEARCH command will be ignored. Be sure that all of these command bits
are OFF before executing an origin search.
Timing Chart
The following timing charts are for when ORIGIN SEARCH is executed with
the origin search operation set to reversal mode 1, the origin detection mode
set to origin proximity input signal reversal, and the origin search direction set
to forward.
Timing Chart Operation
1
0
1
0
Origin proximity
input signal
Origin input signal
(Phase Z signal)
Origin search
reverse direction
Final travel distance to return to zero point
Origin search direction
Limit input signal in origin search direction
Stop
Start
Summary of Contents for CJ1W-NC271 - 12-2009
Page 2: ......
Page 4: ...iv ...
Page 6: ...vi ...
Page 22: ...xxii ...
Page 58: ...30 Starting Operation Section 2 2 ...
Page 244: ...216 Axis Operating Input Memory Areas Section 4 8 ...
Page 264: ...236 Transferring Servo Parameters Section 5 3 ...
Page 396: ...368 Linear Interpolation Section 9 7 ...
Page 648: ...620 List of Error Codes Appendix D ...
Page 674: ...646 Additional Functions for the CJ1W NCF71 MA Appendix F ...
Page 684: ...656 Index ...
Page 686: ...658 Revision History ...