Yaskawa MP940 - Manual (Page 367)

Troubleshooting
9.3.2 Processing Flow When a Motion Error Occurs
9-22
„ Motion Parameter: Alarm ILxx22 Details
The following tables lists the axis alarm flags (ILxx22).
Parameter No. Contents
Counter-
measures
b0：SVERROR SERVOPACK error
b1：OTF Positive Overtravel
• Servo Amp overtravel in the positive direction detected (P_OT signal ON)
b2：OTR Negative Overtravel
• Servo Amp overtravel in the negative direction detected (N_OT signal ON)
b3：SOTF Positive Software Limit
• Machine movement toward the positive software limit range detected
b4：SOTR Negative Software Limit
• Machine movement toward the negative software limit range detected
b5： Not used.
b6：TIMEOVER Positioning Time Exceeded
• Positioning was not completed in the time set at OWxx34: Positioning Complete
Check Time after distribution.
b7：DISTOVER Overspeed
• Segment output exceeds electronic gear limits.
b8： Not used.
b9： Not used.
b10：MODERR Control Mode Error
• A Position Control Mode motion command is used in a mode other than position
control.
b11：ZSET_NRDY Zero Point Not Set
• When an Absolute Encoder was used, the zero point is not set and a move was
executed without a set zero point.
b12： Not used.
b13： Not used.
b14： Not used.
b15： Not used.
b16： Not used.
b17： ABS Encoder Rotation Count Over
• The number of ABS encoder rotations exceeded the range of the MP940.
b18： Not used.
b19 to b31: Not used.