Yaskawa MP2000 Series: User's Manual for Motion Programming - Manual (Page 310)

10.2 Troubleshooting for Motion Programs
10-7
10
Troubleshooting
(4) "No System Work" Error/Execution Scan Error Bit of Status Flag
If running status flag bit E (“No system work” error/execution scan error) is ON, the motion program will be dis-
abled from running because of error occurrence. In this case, confirm the following items:
• The number of tasks being executed is less than 16.
• The task that the system work number designates is not being executed.
• The MSEE command is embedded in a high-speed scan drawing (DWG.H).
Status flag
Motion program
work register
Control signal
Interpolation override
System work number
1st word
Bit 0
2nd word
3rd word
4th word
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
Bit A
Bit B
Bit C
Bit D
Bit E
Bit F
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
Bit A
Bit B
Bit C
Bit D
Bit E
Bit F
Program running
Program paused
Stopped by program stop request
(Reserved by the system)
Program single-block operation stopped
(Reserved by the system)
(Reserved by the system)
(Reserved by the system)
Program alarm
Stopped by break point
(Reserved by the system)
In debug mode
Program type
Start request signal history
“No system work” error, execution scan error
Main program No. outside the range
Program start request
Program pause request
Program stop request
Program single-block mode selection
Program single-block operation start request
Program reset and alarm reset request
Program continuous operation start request
(Reserved by the system)
Skip 1 information
Skip 2 information
(Reserved by the system)
(Reserved by the system)
(Reserved by the system)
System work number setting
Interpolation override setting
(Reserved by the system)
When this bit is ON, the motion
program will not start running
because of error occurrence.