
8. TROUBLESHOOTING
B–64115EN/01
434
It shows that positioning is not yet completed. Check the contents of the
following diagnostic number. (It is 1 in the following condition)
DGN 0300
Position Error
>PARAM 1826
In–position width
1) Check the parameters according to the parameter list.
1825 Servo loop gain per axis (Normal : 3000)
2) Servo system may be abnormal. Refer to servo alarm 400, 410, and
411.
There are a plural interlock signals. Check at first which interlock signal
is used by the machine tool builder at the parameters shown below.
#7
3003
#6 #5 #4
DAU
#3
DIT
#2
ITX
#1 #0
ITL
#0 ITL=0 shows interlock signal *IT is effective. To 1)
#2 ITX=0 shows interlock signal *ITn is effective. To 2)
#3 DIT=0 shows interlock signal "MITn is effective. To 3)
#4 DAU=When it is “1,” the interlock signal ("MITn) is effective
even in automatic operation.
Go to 3).
Check state of effective interlock signals using the diagnostic function
(PMCDGN) of the PMC.
1) Interlock signal (*IT) is input.
#7
G0008
#6 #5 #4 #3 #2 #1 #0
*IT
*IT=0 shows that interlock signal is input.
2) Axis interlock signal (*ITn) is input.
#7
G0130
#6 #5 #4 #3
*IT4
#2
*IT3
#1
*IT2
#0
+IT1
*ITn=0 shows interlock signal is input.
3) Interlock signal per axis and direction ("MITn) is input.
D M series
#7
G0132
#6 #5 #4 #3
+MIT4
#2
+MIT3
#1
+MIT2
#0
+MIT1
G0134 –MIT4 –MIT3 –MIT2 –MIT1
D T series
#7
X0004
#6 #5
–MIT2
#4
+MIT2
#3
–MIT1
#2
+MIT1
#1 #0
"MITn=1 shows interlock signal per axis and direction is input.
* In T series, "MITn is effective only when the manual operation is
used.
a. In–position check is
being done
b.Interlock or start lock
signal is input