6.TROUBLESHOOTING
B–61395E/06
6.16
Amplifier or overheat of motor is detected.
ALARM 400, 402, 406,
490 (OVERLOAD)
Points
400 SERVO ALM :X OVERLOAD
⇐ Example of CRT display.
Axis name is also displayed.
Confirm the detail by the diagnostic function of CNC.
DGN
DGN
0720
#7
OVL
:
0727
OVL
#6
#5
#4
#3
#2
#1
:
#7(OVL): 1 OVERLOAD ALARM is displayed.
Overheat of servo motor
(START)
NO
Is it hot ?
YES
Overheat of motor
Defective thermostat
(Next page) (1)
223
NOTE : After the motor is changed, reference
position or machine’s reference point is
different from the one before replace
ment. Set it again.
#0