
8. TROUBLESHOOTING
B–62835EN/01
272
(b) Rapid traverse override signals
#7 #6 #5 #4 #3 #2 #1 #0
G0014 ROV2 ROV1
ROV1 ROV2 Override
00
10
01
11
100%
50%
25%
Fo
1421 Rapid traverse override F0 rate [mm/min]
(2) Only feed (other than G00) does not function
(a) Maximum feed rate set by parameter is incorrect.
1422 Maximum feedrate [mm/min]
Feed rate is clamped at this upper feed rate.
(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
Position coder is connected to the spindle amplifier when serial
interface spindle is used or connected to the CNC when analog
interface spindle is used.
For details of connection, refer to the following.
<Serial interface spindle amplifier>
CN11A
Serial
spindle
200VAC
(Note)
Spindle
motor
Position coder or
Built–in sensor
Spindle
Optical fiber
PC
Power Mate
ENC (JA12)
SPINDLE
(JA11)
(Optical I/O
link adapter)
JD1 COP1
JA713
Don ’t connect to
the ENC (JA12)