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Failure Information

Product Contents Date
MCX312 In executing continuous interpolation, writing the interpolation command for the next segment during outputting the last pulse of the present segment, the irregular driving will occur, it keeps outputting pulses continuously.

Workaround:
・Set the adequate values of output pulse number and drive speed for each segment in order to keep enough time to write interpolation data and command by CPU within the time for the interpolation driving of each segment.
・Set more than "2" as the output pulse number for each segment.
Jul. 26 2011
MCX302
MCX312
MCX304
MC8082P
MC8082Pe
MC8042P
MC8022P
When using fixed pulse driving in S-curve acceleration/deceleration, pulse may be continuously output.
Click here for the details and the workaround.
Oct. 26 2006
MCX302
MCX312
MCX304
MC8082P
MC8082Pe
MC8042P
MC8022P
Although the range of position comparison between position counter and compare register (COMP+, -) is shown as from -2,147,483,648 to +2,147,483,647 (signed 32-bit) in user’s manual, actually it is from -1,073,741,824 to +1,073,741,823 (signed 31-bit) due to the defect of IC.

Workaround:
Don’t compare the values over the range from -1,073,741,824 to +1,073,741,823.
May. 23 2006
MCX302
MCX312
MCX304
MC8082P
MC8082Pe
MC8042P
MC8022P
In S-curve acceleration/deceleration for fixed pulse and continuous drive, it keeps to drive in initial speed.
Click here for the details and the workaround.
Sep. 21 2005
MR210AU
MR220AU
In index drive, executing HOM action after the execution of step of End-P= 0, end pulse is not output even though End-P= 1 is set.

Workaround:
Set the step of INC 0 End-P=1 to the axis in advance and execute it before HOM action.
Sep. 26 2005
MR210AU
MR220AU
Enable “Using Limit Signal” of Mode, returning information is back as Limit Error=0 even though ERD command is issued when Hardware Limit Error and Software limit Error.

Workaround:
Refer to ERR bit of INR command. You can see the error status, if ERR bit is 1.
Sep. 26 2005
MR210AU
MR220AU
If the error occurs in Index drive mode, the LED indicators of X and Y do not flash and error status is not shown.

Workaround:
Confirm the error status by the flashing of parallel XEEROR and YERROR signals. instead.
Sep. 26 2005