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203
Axis Operating Input Memory Areas
Section 4-8
No Origin Flag
Word
b
Bit
06
Function
This flag turns ON when the origin is not established. Except when using Ser-
vomotors with absolute encoders, the PCU's No Origin Flag turns ON immedi-
ately after a connection is established, at which time the origin is not
established. (The No Origin Flag turns OFF, however, immediately after the
PCU power is turned ON or the Unit is restarted, and the flag remains OFF
until the first CONNECT is executed.) The origin for each axis is determined
by either of the following origin positioning operations, after which the No Ori-
gin Flag turns OFF.
ORIGIN SEARCH, PRESENT POSITION PRESET
When using Servomotors with absolute encoders, the origin is established by
reading the absolute value data when establishing a connection or executing
SERVO LOCK. The established origin is held even if SERVO UNLOCK is exe-
cuted, and will not be set to no origin status. No origin status (No Origin Flag
ON) occurs under the following conditions.
• When DEVICE SETUP is executed (during Servo unlock status)
• When a connection is released (See note.)
Note
When a connection is released (including a disconnection due to error), the
status for each axis becomes undefined (non-execution), except for the Error
Flag and axis error code. The No Origin Flag turns ON while in no origin (ori-
gin not established) status.
Origin Stop Flag
Word
b
Bit
07
Function
This flag turns ON when the origin has been established and the present posi-
tion of each axis is within the
Origin Range
set in Servo Parameter Pn105 for
the R88D-G
@
or
Zero Point Width
set in Servo Parameter Pn803
for the
R88D-KN
@
,
the R88D-WT
@
, the R88D-WN
@
-ML2, or a SMARTSTEP Junior
Servo Drive.
This flag turns ON for the interval in which the present position is within the
Origin Range
or
Zero Point Width
when it passes the
Origin Range
or
Zero
Point Width
during axis operation.
Origin range (Pn105) for G Series
Zero point width (Pn803) for G5 Series, W Series, SMARTSTEP Junior
Established origin
Origin Stop Flag
Forward direction
The Origin Stop Flag turns ON while the present position is within the
range of
±
Pn105 for G-series Servo Drives or
±
Pn803 for G5-Series,
W-series and SMARTSTEP Junior Servo Drives from the established
origin when traveling forward.
Origin range (Pn105) for G Series
Zero point width (Pn803) for G5 Series, W Series,
SMARTSTEP Junior
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 ...