
A.ALARM LIST APPENDIX B-63945EN/02
- 674 -
(6) Overtravel alarms (OT alarm)
Number Message Description
OT0500 + OVERTRAVEL ( SOFT 1 ) Exceeded the positive side stored stroke check 1.
OT0501 - OVERTRAVEL ( SOFT 1 ) Exceeded the negative side stored stroke check 1.
OT0502 + OVERTRAVEL ( SOFT 2 ) Exceeded the positive side stored stroke check 2. Or, in the
chuck tail stock barrier, an entry to the inhibited area was
made during movement in the positive direction.
OT0503 - OVERTRAVEL ( SOFT 2 ) Exceeded the negative side stored stroke check 2. Or, in the
chuck tail stock barrier, an entry to the inhibited area was
made during movement in the negative direction.
OT0504 + OVERTRAVEL ( SOFT 3 ) Exceeded the positive side stored stroke check 3.
OT0505 - OVERTRAVEL ( SOFT 3 ) Exceeded the - side stored stroke check 3.
OT0506 + OVERTRAVEL ( HARD ) The stroke limit switch in the positive direction was triggered.
This alarm is generated when the machine reaches the
stroke end.
When this alarm is not generated, feed of all axes is stopped
during automatic operation.
During manual operation, only the feed of the axis on which
the alarm occurred is stopped.
OT0507 - OVERTRAVEL ( HARD ) The stroke limit switch in the negative direction was
triggered.
This alarm is generated when the machine reaches the
stroke end.
When this alarm is not generated, feed of all axes is stopped
during automatic operation.
During manual operation, only the feed of the axis on which
the alarm occurred is stopped.
OT0508 INTERFERENCE:+ A tool moving in the positive direction along the n axis has
fouled another tool post.
OT0509 INTERFERENCE:- A tool moving in the negative direction along the n axis has
fouled another tool post.
OT0510 + OVERTRAVEL ( PRE-CHECK ) The tool exceeded the limit in the negative direction during
the stroke check before movement.
OT0511 - OVERTRAVEL ( PRE-CHECK ) The tool exceeded the limit in the positive direction during the
stroke check before movement.
OT1710 ILLEGAL ACC. PARAMETER
(OPTIMUM TORQUE ACC/DEC)
The permissible acceleration parameter for the optimum
torque acceleration/deceleration is in error. A possible cause
is either of the following:
(1) The ratio of a negative acceleration to a positive
acceleration is not more than the limit value.
(2) The time to reduce to a velocity of 0 exceeded the
maximum time.