
B–63505EN/02
7.TROUBLESHOOTING
243
Check the signals using PMC’s diagnostic function (PMCDGN)
#7
*JV7G0010
#6
*JV6
#5
*JV5
#4
*JV4
#3
*JV3
#2
*JV2
#1
*JV1
#0
*JV0
*JV15G0011 *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 case, RESET is also displayed on the status display. Check it using
the procedure of 1 above.
(4)Jog feed rate setting (Parameter) is not correct.
1423 Jog feedrate per axis
(5)Manual feed per revolution is selected ( T series)
This funciton feeds an axis synchronized with spindle rotation and
whether this function is used or not is selected by the following
parameter:
#7
1402
#6 #5 #4
JRV
#3 #2 #1 #0
#4 (JRV) 0 : Jog feed is of feed per minute
1 : Jog feed is of feed per revolution
(a) When parameter JRV is set to 1, feed rate of the axis is calculated
by synchronizing with rotation of the spindle. Therefore, rotate the
spindle.
(b)If the axis does not move even when the spindle is rotated, check
the detector of the spindle (position coder) and the cable between
the position coder and the CNC if it is short–circuited or
ungrounded.
c. Jog feedrate override is
0%
d.NC is in a reset state