Yaskawa Yasnac PC NC - Manual (Page 223)

YASNAC PC NC Operating Manual Appendix 2: Alarm Tables
A2 - 19
Alarm No.: 2071 to 2078, 2081 to 2088 (Reference Point Return Error)
Alarm No.: 3000 (Servo Power Not Ready)
Alarm No.: 3001 (Control Not Ready)
The NC executes self-diagnosis after power ON. If positioning error checked during this self-diagnosis exceeds the values set for
parameters pm1321 (1st Axis) to pm1325 (5th Axis), this alarms occurs.
Alarm No.: 3041 to 3048 (Excessive Follow-up Error)
If the follow-up error between the command value and the actual position value exceeds 120% of the error in rapid traverse (100%)
operation, this alarm occurs. Check the values set for parameters pm1671 to pm1675 and pm1681 to pm1685 and contact the
machine tool builder or your Yaskawa representative.
Alarm No.: 3051 (Excessive Follow-up Error: Spindle)
If the follow-up error between the command value and the actual position value exceeds the value set for parameter pm1351, this
alarm occurs. Check the value set for parameter pm1351 and contact the machine tool builder or your Yaskawa representative.
ALARM CAUSE CHECK ITEM COUNTER MEASURE
Alarm in manual reference point return
operation. Check if errors occurs every time. Contact your machine tool builder or
Yaskawa representative.
Alarm in automatic reference point
return operation. G28: Check if alarm occurs every time. Contact your machine tool builder or
Yaskawa representative.
G27: Check the point specified in the
program if it agrees with the zero point. Review the program.
ALARM CAUSE CHECK ITEM COUNTER MEASURE
Secondary power supply is not applied If the NC RESET switch, etc. is
depressed after depressing the POWER
ON button once, or after clearing the
emergency stop or alarm state, the
alarm message is displayed. This does
not indicate occurrence of alarm. Press the POWER ON button again.
With the secondary power ON I/O
input specification, the input is not
turned ON. (For the automatic servo
power ON) Check the following on the I/O monitor
screen:
#3005 D0 = 1 (SVON)
#3503 D0 = 1 (SVONS)
Contact your Yaskawa representative.
ALARM CAUSE CHECK ITEM COUNTER MEASURE
Machine (axes) have moved. Select the error pulse display screen
from the present position display screen
in the common process and check the
error pulse value. The machine tool has a problem. Con-
tact the machine tool builder.
PG signal remains output. PG or AC servo must be changed. Con-
tact your Yaskawa representative.