Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 27)

PC NC Maintenance Manual Chapter 4: Troubleshooting
4-6
(4) Alarm Numbers 2101 to 2108 (P-SET Error)
The P-SET alarm occurs if the error between the position speci-
fied in the program and the actual machine position is larger than
the value set for parameterspm1321 (1st axis) to pm 1325 (5th
axis) in the following modes of operation.
At the completion of positioning in G00, G27, G28, G29, G30,
etc., error detect ON (1/O monitor parameter #3004 D4 = 1), and
G04 (dwell).
If error pulses have been accumulated, check the number of accu-
mulated pulses on the Error Pulse Display Screen before contact-
ing a Yaskawa customer service representative.
(5) Alarm Number 3000 (Servo Power Not Ready)
Table 4.5 Troubleshooting - Alarm #3000 (Servo Power Not Ready)
Cause Check Item Countermeasures
Secondary power supply is not
applied If the NC RESET switch is depressed
after depressing the POWER ON but-
ton once, or after clearing the emer-
gency stop or alarm state, the alarm
message is displayed. This does not
indicate the occurrence of an alarm. Press the POWER ON but-
ton again.
With the secondary power ON,
I/O input specification is not
turned ON (for automatic servo
power ON) Verify the following on the I/O monitor
screen:
#3005 DO = 1 (SVON)
#3503 DO = 1 (SVONS) Contact your Yaskawa
customer service
representative.
Emergency stop signal stays
ON. Determine whether alarm Number
3002 is displayed (#3503 D4 = 1) on
the screen. Reset the emergency stop
input signal.
The secondary power ON sig-
nal is turned OFF due to some
other alarm. Check the alarm indication for other
alarms. Take appropriate mea-
sures by referring to the
alarm code.