
B–61404E/08
G. ALARM LISTAPPENDIX
667
7) Over travel alarms
Number Meaning Contents and remedy
5n0 OVER TRAVEL : +n Exceeded the n–th axis + side stored stroke limit 1, 2.
5n1 OVER TRAVEL : –n Exceeded the n–th axis – side stored stroke limit 1, 2.
5n2 OVER TRAVEL : +n Exceeded the n–th axis + side stored stroke limit 3.
5n3 OVER TRAVEL : –n Exceeded the n–th axis – side stored stroke limit 3.
5n4 OVER TRAVEL : +n Exceeded the n–th axis + side hardware OT.
5n5 OVER TRAVEL : –n Exceeded the n–th axis – side hardware OT.
8) Macro alarms
Number Meaning Contents and remedy
500 to
599
MACRO ALARM This alarm is related to the custom macro, macro executor, or order–
made macro (including conversational program inputs). Refer to the
relevant manual for details. (The macro alarm number may coincide
with an overtravel alarm number. However, they can be distinguished
from each other because the overtravel alarm number is accompanied
with the description of the alarm.
9) PMC alarms
Number Meaning Contents and remedy
600 PMC ALARM : INVALID INSTRUC-
TION
An invalid–instruction interrupt occurred in the PMC.
601 PMC ALARM : RAM PARITY A PMC RAM parity error occurred.
602 PMC ALARM : SERIAL TRANSFER A PMC serial transfer error occurred.
603 PMC ALARM : WATCHDOG A PMC watchdog timer alarm occurred.
604 PMC ALARM : ROM PARITY A PMC ROM parity error occurred.
605 PMC ALARM : OVER STEP The maximum allowable number of PMC ladder program steps was ex-
ceeded.
606 PMC ALARM : I/O MODULE ASSIGN-
MENT
The assignment of I/O module signals is incorrect.
607 PMC ALARM : I/O LINK An I/O link error occurred. The details are listed below.
Number Details of PMC alarm (No. 607)
010 * Communication error (SLC (master) internal register error)
020 * An SLC RAM bit error occurred (verification error).
030 * An SLC RAM bit error occurred (verification error).
040 No I/O unit has been connected.
050 32 or more I/O units are connected.
060 * Data transmission error (no response from the slave)