Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 80)

Chapter 4: Troubleshooting PC NC Maintenance Manual
4-59
AL-60:Tuning incompletion
Error Contents The orientation command was input without tuning (minor fault, and
encoder method ORT).
Detection Methods When orientation signal ORT is ON in a state of tuning operation selec-
tion bit (C2-22.b4) becomes tuning enable (= 0), minor fault display is
performed due to tuning incompletion AL-60.
Cause and measures
AL-61:The C-phase signal detection is defective.
Error Contents The C-phase signal was not able to be detected at tuning. (encoder
method ORT).
Detection Methods C-phase signal was not able to be detected when rotating forward direc-
tion with 60r/min. and waited 5 seconds. Or, C-phase signal was not
able to be detected when rotating reverse direction with 60r/min. and
waited 5 seconds after forward direction check is completed.
Cause and measures
Cause Measures
Orientation tuning is uncompleted. Adjust according to the orientation adjustment procedure and
the control parameter.
Cause Measures
Load axis encoder signal conduc-
tor disconnection, improper con-
nection, and connector omission Check load axis encoder signal conductor wiring.
Load axis encoder fault Exchange the load axis encoder with non-defective one.
Orientation card fault Confirm A, B, and the C-phase pulse by the check terminal on
the orientation card.
Exchange the orientation card with a non-defective one.
Exchange the load axis encoder with a non-defective one.