
B–63505EN/02
7.TROUBLESHOOTING
251
#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 override value is 0%, all bits of the above address is
[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, the CNC’s status display shows RESET. Refer to item 1.
(2)Only rapid traverse in positioning (G00) does not function Confirm
the following parameter and signals from the PMC.
(a) Setting value of rapid traverse rate
1420 Rapid traverse rate per axis
(b)Rapid traverse override signals
#7
G0014
#6 #5 #4 #3 #2 #1
ROV2
#0
ROV1
HROVG0096
*HROV6 *HROV5 *HROV4 *HROV3 *HROV2 *HROV1 *HROV0
(HROV–0) (HROV=1)
ROV1 ROV2 Override
00
11
01
11
100%
50%
25%
Fo
*HROV6 *HROV0 Override
1111111
1111110
:
0011011
0%
1%
:
100%
1421 Rapid traverse override F0 rate
(3)Only feed (other than G00) does not function
(a) Maximum feedrate set by parameter is incorrect.
1422 Maximum feedrate
Feedrate is clamped at this upper feedrate.
(b)Feedrate is specified by feed per revolution (mm/rev)
1) Position coder does not rotate
Check the connection between spindle and position coder
The following failure is considered:
D Timing belt is broken
D Key is removed
D Coupling is loose
D Connector of signal cable is loosened
2) Position coder is faulty
i. NC is in a reset state