7. TROUBLESHOOTING
B−63085EN/02
286
(1)Check whether position display is operating.
(2)Check CNC status display.
(3)Check internal status using Diagnostic funciton.
(1)Check mode selection status (JOG mode is not selected).
When status display shows JOG, it is normal.
When status display does not show JOG, mode select signal is not
selected correctly. Confirm the mode select signal using PMC’s
diagnostic function (PMCDGN).
<Mode select signal>
#7
G0043
#6 #5 #4 #3 #2
MD4
#1
MD2
#0
MD1
Manual operation (JOG) mode 1 0 1
¯¯¯
(2)Feed axis and direction select signal is not input Check the signal using
PMC’s diagnostic function (PMCDGN).
#7
G0100
#6 #5 #4 #3
+J4
#2
+J3
#1
+J2
#0
+J1
G0102 −J4 −J3 −J2 −J1
Example)
When +X button is pressed on the operator’s panel, signal+J1 turns to
1.
This signal is effected at its rise. If axis selection signal is input before
JOG mode is selected, axis movement does not occur. Turn the signal
to off, then on.
7.3
JOG OPERATION
CANNOT BE DONE
Points
Causes and Remedies
1. Position display
(relative, absolute,
machine cooordinate)
does not change