
7. TROUBLESHOOTING
B–63445EN/01
138
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
>PRM 1826
In–positio 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 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 #6 #5 #4 #3 #2 #1 #0
3003 ITX ITL
#0 ITL=0 shows interlock signal *IT is effective. To 1
#2 ITX=0 shows interlock signal *ITn is effective. To 3
Check state of effective interlock signals using the diagnostic function
(PMCDGN) of the PMC.
1 Interlock signal (*IT) is input
#7 #6 #5 #4 #3 #2 #1 #0
G0008 *IT
*IT=0 shows that interlock signal is input.
2 Axis interlock signal (*ITn) is input
#7 #6 #5 #4 #3 #2 #1 #0
G0130 *IT2 +IT1
*ITn=0 shows interlock signal is input.
Check the signals using PMC’s diagnostic function (PMCDGN)
#7 #6 #5 #4 #3 #2 #1 #0
G0010 *JV7 *JV6 *JV5 *JV4 *JV3 *JV2 *JV1 *JV0
G0011 *JV15 *JV14 *JV13 *JV12 *JV11 *JV10 *JV9 *JV8
When the override is 0% all bits of the above address becomes
1111 1111 or 0000 0000.. . . . . . . . .
*JV15 JV0. . . . . . . . . . Override
1111 1111 1111 1111
1111 1111 1111 1110
:
1101 1000 1110 1111
:
0000 0000 0000 0001
0000 0000 0000 0000
0.00%
0.01%
:
100.00%
:
655.34%
0.00%
In this state, neither jog operation nor automatic operation can be
executed. See ”NO JOG OPERATION NOR AUTOMATIC
OPERATION CAN BE EXECUTED” to determine the cause.
(4) Jog feed rate setting (Parameter) is not correct
1423 Jog feedrate per axis
a. In–position check is
being done
b.Interlock signal is input
c. Jog feedrate override is
0%
d.NC is in a reset state