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Error Reset
Section 12-6
12-6 Error Reset
The PCU indicates Unit common errors and individual axis errors in the Com-
mon Operating Memory Area and Axis Operating Input Memory Areas,
respectively, using Error Flags and error codes.
These errors can be cleared by removing the cause of the error and executing
ERROR RESET.
The methods for resetting Unit common errors and individual axis errors are
different.
12-6-1 Resetting Unit Common Errors
Unit common errors are cleared by turning ON (
) the UNIT ERROR RESET
Bit in the Common Operating Memory Area.
Reset Unit common errors when the Unit Busy Flag for the Position Control
Unit is OFF. If errors are reset when the Unit Busy Flag is ON, a multistart
error (Unit error code: 0021) will occur and it will not be possible to reset Unit
common errors.
When clearing Unit common errors, make sure that the UNIT ERROR RESET
Bit in the Common Operating Memory Area remains ON until the Unit Busy
Flag turns ON.
Common Operating Memory Area (Output)
n = CIO 1500 + (unit number
×
25)
Common Operating Memory Area (Input)
n = CIO 1500 + (unit number
×
25)
Timing Chart Example for UNIT ERROR RESET
Name
Word
Bit
Contents
UNIT ERROR
RESET Bit
n
00
: Resets Unit common error
Name
Word
Bit
Contents
Unit Error Flag
n+15
12
0: Unit common error has not occurred.
1: Unit common error has occurred.
Unit Busy Flag
n+16
14
0: PCU is not busy
1: PCU is busy
Unit error code
n+21
---
Stores the error code when a Unit common
error occurs.
UNIT ERROR RESET Bit
(word n, bit 00)
Unit Error Flag
(word n+15, bit 12)
Unit Busy Flag
(word n+16, bit 14)
Unit Error Code
(word n +21)
0000
0021 hex
0000
(Example) Multistart Error
n = CIO 1500 + (unit number
×
25)
The Unit Busy Flag remains ON
for at least one cycle time when
UNIT ERROR RESET is
executed.
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 ...