
7. TROUBLESHOOTING
B–63325EN/03
356
(1)If both manual and automatic operations are impossible, use this
procedure to determine the cause.
(2)Check whether the position display works.
(3)Check the status display on the CNC.
(4)Check the internal status, using the CNC diagnostic function.
(1)CNC status display check (see the description of the status display for
details.)
a. Emergency stop condition (emergency stop signal is on.)
If the
EMG
display appears, it implies that the emergency stop
signal is active. So, check the following signals, using the PMC
diagnostic function (PMCDGM).
#7
X0006
#6 #5 #4
*ESP
#3 #2 #1 #0
#7
G0000
#6 #5 #4
*ESP
#3 #2 #1 #0
*ESP = 0 means that the emergency stop signal is active.
b. Reset condition (the reset signal is on.)
If the ”RESET” display appears, it means that a reset is active. So,
check the following signals, using the PMC diagnostic function
(PMCDGN).
1 The input signal from the PMC works.
#7
ERSG0000
#6
RRW
#5 #4 #3 #2 #1 #0
ERS = 1 means that an external reset signal is active.
RRW = 1 means that the reset & rewind signal is active.
2 The RESET key on the MDI keypad is on.
If the signal mentioned in 1, above, is off, it is likely that the
RESET key is on. Check the contacts of the key, using a
multimeter. If the key is found to be defective, replace the
keypad.
7.1
BOTH MANUAL AND
AUTOMATIC
OPERATIONS ARE
IMPOSSIBLE
[Point]
[Cause and action]
1. If the position display
(relative, absolute, and
machine coordinate
system) also does not
work